GShell 0.7.3 − Windows対応

社長:おはようございます。

基盤:おはようございます。朝から始業のシフトに戻りましたね。

開発:今日は朝礼なしで、早速はじめたいと思います。まず、今回はせっかくなのでGoのクロスコンパイル機能を使って、macOSで仕事を進めたいと思います。

基盤:いきなり止まりますが。

開発:CGoがあると止まります。このメッセージからではうかがい知れませんが、CGoのクロスコンパイル環境をインストールして無いからですね。昨日の0.7.2で、端末からの1バイト入力をC.getcとかでごまかしてました。これはos.Stdin.Readで置き換えることとします。とりあえず CGo のための import "C" を削除して再コンパイル。

開発:C.getc と syscall.Pipe を置き換え。

開発:ということでぱっと見、ファイルのstatと、CPU系のrusage、プロセスのfork関係が問題です。

社長:どこから片付けましょうかね。

開発:一番面白そうな syscall.ForkExec から行きたいと思います。これは実は最初、exec.Command + exec.Run で実装していたのですが、なにかがむず痒くて syscall.ForkExec にしたという経緯があります。

開発:それで今、exec package のドキュメントを見ると、os.StartProcess なる面白げな関数があるらしいとわかりました。

開発:Goのドキュメントではこういうふうに時々、最上位のメソッドというか関数を、関連タイプごとにまとめてしまっているので、存在に気が付かないことがあります。

開発:で、どういうものか見ると、まさに syscall.ForkExec に皮がかぶったようなものです。

開発:で、これで起動すると帰ってくProcess から Process.Wait で ProcessStatus を取り出して、そこからさらに SysUsage とかでRusage的情報を取り出してやれば良いようです。

基盤:CPU使用時間だけなら直接もらえるんですね。

社長:ほとんどの場合には、それで足りるとも言えますね。

開発:ということで、syscall.ForkExec / syscall.Wait4 を、os.StartPocess / Process.Wait で置き換える方向で進めたいと思います。

社長:すっきりしそうですね。ちょっと一服しましょう。

* * *

開発:まず、3箇所有る syscall.ProcAttr を os.ProcAttr に書き換えます。そうすると、syscallだとファイルディスクリプタだと思っていたFileが *os.Fileになるのでどっとエラーがでます。

開発:これは file.Fd() としていたところを単に file とすればOK。そうすると、ForkExecの引数の型不一致だけの問題に収束します。

開発:そこで、ForkExec を機械的に StartProcess, Wait, Pid に置き換えます。

開発:で、ビルドしてテスト。

社長、基盤:おおー。

開発:これで、syscall.ForkExec が追放されました。

開発:次にsyscall.Wait4です。

基盤:ちょっと待った、すでに Process.Wait してますよね。

社長:というか、StartProcess ではバックグラウンドで実行できないんでしょうか?

開発:・・・これは、os.ProcAttr.Sys が指している syscall.SysProcAttr に Foregroud というフラグがありますので、それで指定すれば良いのでは無いかと。

社長:その後の実行を制御をするための ProcessState を得る手段が Wait しか無いようですから、完全に終わるのしか待たないように読めるこの記述はちょっとおかしいですよね。

開発:まあそれはちょっと置いといて、問題はこの interface{} というナンデモポインタのようなメタモなやつからどうやってシステム固有の syscall.Rusage を取り出すかです。

社長:convert it to the type って具体的にどうやるんですかね。要するにキャストですよね。

開発:golang convert interface struct で検索… どうもGoの普通のキャストみたいに type(value) じゃないみたいですね。interface.(struct) みたいな? こんな感じかなと。

開発:ビルド通過。実行…

基盤:当たり!

開発:syscall.Wait4 追放されました。

開発:一つ残っているのは、コマンドヒストリにはりつけてあるのが pid が識別子だからです。これを *ProcessState にしてやれば完了。

社長:一番のヤマは超えましたね。

開発:単一ファイルでやるには、互換性の無いsyscallのメンバーは外さないといけないですけどね。これは残りの2案件でも同様ですが。

基盤:JavaScriptの getElementById みたいに、シンボリックにそのメンバーの有無を確認してinterfaceが取り出せると良いと思うのですが。

開発:取り出した後に結局convertするところをコンパイラにおまかせだと同じ問題に帰りますよね。

基盤:そこはWindowsのと互換を構造体を自分で定義して、そこにキャストすれば良いように思います。簡単な構造体なら。

開発:・・・それはアリかも。

社長:Windows的にやっかいそうなのが Lstat と Fsatat でしょうか。

開発:Lstatはネイティブなローカルファイルとしてはどうにもならないですね。ショートカットでエミュレートするか。Fstatは、syscall.Pipeも消しましたらから、そもそも開いてるファイルは常に os.File なので、問題ないと思います。

社長:おなかすいたので食事してきます。

* * *

社長:あー、飲んだ食った… おなかパンパン。

基盤:久しぶりに謎の定食屋ですか。

社長:マスターにお久しぶりとか言われちゃいましたよ。でもここのところ3回くらい立て続けにこっちのほうがフラレてたわけですけどね。

開発:定休日はどうなってるんですか?

社長:そんなもなぁねえって言ってましたけどね。休みたい時に休むんだって。

社長:季節だし、今日もお刺し身がとても良かったです。生姜焼きの肉がとんかつ肉クラスだったので転げました。野菜もガッツリ。生ビールがモルツなのだけが残念。あの内容で普通の店なら5千円は超えますが、2500円ぽっきりでした (^-^)/

経理:一度その店の明細書というのを見てみたいですね。

基盤:そこがそば屋ならよかったですね。

社長:それで帰ったら、郵便受けにこのようなものが。

全員:狂喜!

経理:二段に留まってますね。

基盤:変動要因ってエアコンくらいしか… あ、レノボ君を寝かせるようにしましたが、まさかあれが?

開発:全く謎ですね。

基盤:そういえば、ださくて悪評だったVivaldiの壁紙がこんなふうに変わってました。

社長:おおーっ。

開発:今日は良いことばかりですね。

* * *

社長:さて、再開しましょうか。

開発:まずは syscall.Rusage のパージですね。一箇所に寄せて、切りやすいようにします。。。変更後、Unixでは動作することを確認。

開発:Windowsでのエラーは一箇所に寄せました。

開発:Rusageは必須というわけでは無いので、とりあえずエラーの 1-17 はコメントアウトで消します。

社長:syscall.Getrusageは、子プロセスのRusageを自分で加算していけば良さそうです。

開発:で、残るはファイルのStat関係。

開発:寄せました。

開発:とりあえずos.Stat とかで代替関数を作ります。で、ビルド。

社長、基盤:おおーっ。

開発:内容確認。

社長、基盤:おおーーっっ。

基盤:できたったぽいですね。

開発:Windowsに持っていって動かしてみましょう。

社長:その前にいっぷくしましょう。

* * *

開発:それでは。

基盤:目覚めよレノボ!

レノ:がおーん…

開発:バイナリをコピーして。起動!

一同:ガクッ…

社長:Windowsでビルドするとどうなりますかね?

開発:ビルド… 実行。

基盤:同じですね。

社長:逆に、同じじゃなかったら嫌ですが。

開発:あ、/bin/stty を実行しようとして失敗してます。ではエラー処理を追加。起動。

開発:ありゃ。

社長:Windowsだと、PATHの区切りが ";" で、".exe" とか拡張子も必要ですね。

開発:追加して、起動。

全員:おおーーっ。

開発:妙なエコーがあったり、user time が取れてないですが、だいたい動いてる感じ。

社長:WebSocket は大丈夫ですかね。

開発:接続…

全員:おおー。

開発:点描ブロードキャスト…

全員:おおーっ。

開発:まあこのへんはGoがバッチリやってくれてますからね。まかせて安心。

社長:よかったよかった。

開発:方針転換して大正解でした。

社長:祝杯を、と行きたいところですが、お昼にガッツリ飲んでしまったので。

基盤:ガッツリ午睡もしましたし。

開発:まあ今日はぼちぼち後片付けして終わりましょう。

* * *

開発:結局、Windowsでの端末のモード切り替えに CGo を使うことになりました。

基盤:標準でないパッケージとCGoのどちらかを選ぶかと言われたら、当然CGoだと思います。

開発:あいや、terminal パッケージは WebSocketと同じレベルでは標準だとはおもいますけどね。MakeRawというのが制御としては大雑把すぎるのがちょっと…

社長:まあ、適材適所ですね。本当に必要な所には使いましょう。

-- 2020-1022 SatoxITS

/* GShell-0.7.3 by SatoxITS
GShell version 0.7.3 // 2020-10-22 // SatoxITS
*/ // // /*
Topbar

Topbar

*/ //
// // // /*
Indexer

Indexer

*/ //
// /*

GShell // a General purpose Shell built on the top of Golang

It is a shell for myself, by myself, of myself. --SatoxITS(^-^) prev.

Edit Save Load Vers 0 Fork Stop Unfold Digest Source
*/ /*
Statement

Fun to create a shell

For a programmer, it must be far easy and fun to create his own simple shell rightly fitting to his favor and necessities, than learning existing shells with complex full features that he never use. I, as one of programmers, am writing this tiny shell for my own real needs, totally from scratch, with fun.

For a programmer, it is fun to learn new computer languages. For long years before writing this software, I had been specialized to C and early HTML2 :-). Now writing this software, I'm learning Go language, HTML5, JavaScript and CSS on demand as a novice of these, with fun.

This single file "gsh.go", that is executable by Go, contains all of the code written in Go. Also it can be displayed as "gsh.go.html" by browsers. It is a standalone HTML file that works as the viewer of the code of itself, and as the "home page" of this software.

Because this HTML file is a Go program, you may run it as a real shell program on your computer. But you must be aware that this program is written under situation like above. Needless to say, there is no warranty for this program in any means.

Aug 2020, SatoxITS (sato@its-more.jp)
*/ /*
Features

Cross-browser communication

... to be written ...

Vi compatible command line editor

The command line of GShell can be edited with commands compatible with vi. As in vi, you can enter command mode by ESC key, then move around in the history by j k / ? n N, or within the current line by l h f w b 0 $ % or so.

*/ /*
Index
Documents Command summary Go lang part Package structures import struct Main functions str-expansion // macro processor finder // builtin find + du grep // builtin grep + wc + cksum + ... plugin // plugin commands system // external commands builtin // builtin commands network // socket handler remote-sh // remote shell redirect // StdIn/Out redireciton history // command history rusage // resouce usage encode // encode / decode IME // command line IME getline // line editor scanf // string decomposer interpreter // command interpreter main JavaScript part Source Builtin data CSS part Source References Internal External Whole parts Source Download Dump
*/ //
//Go Source
// gsh - Go lang based Shell // (c) 2020 ITS more Co., Ltd. // 2020-0807 created by SatoxITS (sato@its-more.jp) package main // gsh main // Imported packages // Packages import ( "fmt" // fmt "errors" "strings" // strings "strconv" // strconv "sort" // sort "time" // time "bufio" // bufio "io/ioutil" // ioutil "os" // os "syscall" // syscall "plugin" // plugin "net" // net "net/http" // http //"html" // html "path/filepath" // filepath "go/types" // types "go/token" // token "encoding/base64" // base64 "unicode/utf8" // utf8 //"gshdata" // gshell's logo and source code "hash/crc32" // crc32 "golang.org/x/net/websocket" "runtime" ) /* #include // to be closed as HTML tag :-p #ifdef _WIN32 #include // // 2020-1022 added -- terminal mode on Windows // https://docs.microsoft.com/en-us/windows/console/setconsolemode // https://docs.microsoft.com/en-us/windows/win32/inputdev/using-keyboard-input int setTermRaw(){ HANDLE hStdin = GetStdHandle(STD_INPUT_HANDLE); DWORD tmode = 0; if( GetConsoleMode(hStdin,&tmode) ){ DWORD xmode = tmode; xmode &= ~ENABLE_ECHO_INPUT; xmode &= ~ENABLE_LINE_INPUT; xmode |= ENABLE_PROCESSED_INPUT; // Control+C for SIGINT if( SetConsoleMode(hStdin,xmode) ){ return tmode; } } return 0; } int setTermMode(int tmode){ HANDLE hStdin = GetStdHandle(STD_INPUT_HANDLE); SetConsoleMode(hStdin,tmode); return 0; } #else int setTermRaw(){ return -1; } int setTermMode(int tmode){ return 0; } #endif */ import "C" /* // // 2020-0906 added, // // CGo // #include "poll.h" // // to be closed as HTML tag :-p // typedef struct { struct pollfd fdv[8]; } pollFdv; // int pollx(pollFdv *fdv, int nfds, int timeout){ // return poll(fdv->fdv,nfds,timeout); // } import "C" // 2020-1021 replaced poll() with channel/select // // 2020-0906 added, func CFpollIn1(fp*os.File, timeoutUs int)(ready uintptr){ var fdv = C.pollFdv{} var nfds = 1 var timeout = timeoutUs/1000 fdv.fdv[0].fd = C.int(fp.Fd()) fdv.fdv[0].events = C.POLLIN if( 0 < EventRecvFd ){ fdv.fdv[1].fd = C.int(EventRecvFd) fdv.fdv[1].events = C.POLLIN nfds += 1 } r := C.pollx(&fdv,C.int(nfds),C.int(timeout)) if( r <= 0 ){ return 0 } if (int(fdv.fdv[1].revents) & int(C.POLLIN)) != 0 { //fprintf(stderr,"--De-- got Event\n"); return uintptr(EventFdOffset + fdv.fdv[1].fd) } if (int(fdv.fdv[0].revents) & int(C.POLLIN)) != 0 { return uintptr(NormalFdOffset + fdv.fdv[0].fd) } return 0 } */ const ( NAME = "gsh" VERSION = "0.7.3" DATE = "2020-10-22" AUTHOR = "SatoxITS(^-^)//" ) var ( GSH_HOME = ".gsh" // under home directory GSH_PORT = 9999 MaxStreamSize = int64(128*1024*1024*1024) // 128GiB is too large? PROMPT = "> " LINESIZE = (8*1024) PATHSEP = ":" // should be ";" in Windows DIRSEP = "/" // canbe \ in Windows OnWindows = false; ) func initGshEnv(){ if( runtime.GOOS == "windows" ){ PATHSEP = ";"; DIRSEP = "\\"; OnWindows = true; }else{ } } // -xX logging control // --A-- all // --I-- info. // --D-- debug // --T-- time and resource usage // --W-- warning // --E-- error // --F-- fatal error // --Xn- network // Structures // 2020-1022 Unix/Windows // ---------------------- //type aStat_t syscall.Stat_t; //type aStat_t struct { syscall.Stat_t } type aStat_t struct { Size int64 Mode os.FileMode Rdev int64 Blocks int64 Nlink int64 } func aLstat(path string, astat *aStat_t)(error){ /* sstat := syscall.Stat_t{}; err := syscall.Lstat(path,&sstat); *astat = aStat_t(sstat); */ fi,err := os.Stat(path); if( err == nil ){ astat.Mode = fi.Mode(); astat.Size = fi.Size(); } return err; } func aFstat(fd int, astat *aStat_t)(error){ /* sstat := syscall.Stat_t{}; err := syscall.Fstat(fd,&sstat); *astat = aStat_t(sstat); */ err := errors.New("NotImplemented-Fstat"); //fmt.Printf("---E-- fstat(%v)(%v)\n",fd,err); return err; } func aAccess(path string, mode uint32)(error){ //err := syscall.Access(path,mode); //err := errors.New("NotImplemented-Access"); fi,err := os.Stat(path) //fmt.Printf("-- Access(%v,%v)\n(%v)\n",path,mode,err); if( err == nil ){ fmode := fi.Mode(); if( fmode.IsRegular() ){ perm := fmode.Perm(); if( (uint32(perm) & mode) != 0 ){ return nil; } return errors.New("NotAccessible"); } return errors.New("NotRegularFile"); } return err; } // 2020-1022 Unix/Windows // ---------------------- type aRusage struct { syscall.Rusage Utime time.Duration Stime time.Duration //Sys interface{} } /* const aRUSAGE_SELF = syscall.RUSAGE_SELF const aRUSAGE_CHILDREN = syscall.RUSAGE_CHILDREN */ const aRUSAGE_SELF = 0 const aRUSAGE_CHILDREN = 1 func aGetrusage(sel int, ru *aRusage){ /* sysru := syscall.Rusage{}; syscall.Getrusage(sel,&sysru); ru.Utime = time.Duration(int64(sysru.Utime.Sec)*1000000000+int64(sysru.Utime.Usec)*1000); ru.Stime = time.Duration(int64(sysru.Stime.Sec)*1000000000+int64(sysru.Stime.Usec)*1000); */ } func aSetrusage(ru *aRusage, ps *os.ProcessState){ ru.Utime = ps.UserTime(); ru.Stime = ps.SystemTime(); } func showRusage(what string,argv []string, ru *aRusage){ fmt.Printf("%s: ",what); //fmt.Printf("Usr=%d.%06ds",ru.Utime.Sec,ru.Utime.Usec) //fmt.Printf(" Sys=%d.%06ds",ru.Stime.Sec,ru.Stime.Usec) fmt.Printf("Usr=%d.%06ds ",ru.Utime/1000000000,(ru.Utime/1000)%1000000); fmt.Printf(" Sys=%d.%06ds ",ru.Stime/1000000000,(ru.Stime/1000)%1000000); /* fmt.Printf(" Rss=%vB",ru.Maxrss) if isin("-l",argv) { fmt.Printf(" MinFlt=%v",ru.Minflt) fmt.Printf(" MajFlt=%v",ru.Majflt) fmt.Printf(" IxRSS=%vB",ru.Ixrss) fmt.Printf(" IdRSS=%vB",ru.Idrss) fmt.Printf(" Nswap=%vB",ru.Nswap) fmt.Printf(" Read=%v",ru.Inblock) fmt.Printf(" Write=%v",ru.Oublock) } fmt.Printf(" Snd=%v",ru.Msgsnd) fmt.Printf(" Rcv=%v",ru.Msgrcv) //if isin("-l",argv) { fmt.Printf(" Sig=%v",ru.Nsignals) //} */ fmt.Printf("\n"); } type GCommandHistory struct { StartAt time.Time // command line execution started at EndAt time.Time // command line execution ended at ResCode int // exit code of (external command) CmdError error // error string OutData *os.File // output of the command FoundFile []string // output - result of ufind Rusagev [2]aRusage // Resource consumption, CPU time or so CmdId int // maybe with identified with arguments or impact // redireciton commands should not be the CmdId WorkDir string // working directory at start WorkDirX int // index in ChdirHistory CmdLine string // command line } type GChdirHistory struct { Dir string MovedAt time.Time CmdIndex int } type CmdMode struct { BackGround bool } type Event struct { when time.Time event int evarg int64 CmdIndex int } var CmdIndex int var Events []Event type PluginInfo struct { Spec *plugin.Plugin Addr plugin.Symbol Name string // maybe relative Path string // this is in Plugin but hidden } type GServer struct { host string port string } // Digest const ( // SumType SUM_ITEMS = 0x000001 // items count SUM_SIZE = 0x000002 // data length (simplly added) SUM_SIZEHASH = 0x000004 // data length (hashed sequence) SUM_DATEHASH = 0x000008 // date of data (hashed sequence) // also envelope attributes like time stamp can be a part of digest // hashed value of sizes or mod-date of files will be useful to detect changes SUM_WORDS = 0x000010 // word count is a kind of digest SUM_LINES = 0x000020 // line count is a kind of digest SUM_SUM64 = 0x000040 // simple add of bytes, useful for human too SUM_SUM32_BITS = 0x000100 // the number of true bits SUM_SUM32_2BYTE = 0x000200 // 16bits words SUM_SUM32_4BYTE = 0x000400 // 32bits words SUM_SUM32_8BYTE = 0x000800 // 64bits words SUM_SUM16_BSD = 0x001000 // UNIXsum -sum -bsd SUM_SUM16_SYSV = 0x002000 // UNIXsum -sum -sysv SUM_UNIXFILE = 0x004000 SUM_CRCIEEE = 0x008000 ) type CheckSum struct { Files int64 // the number of files (or data) Size int64 // content size Words int64 // word count Lines int64 // line count SumType int Sum64 uint64 Crc32Table crc32.Table Crc32Val uint32 Sum16 int Ctime time.Time Atime time.Time Mtime time.Time Start time.Time Done time.Time RusgAtStart [2]aRusage RusgAtEnd [2]aRusage } type ValueStack [][]string type GshContext struct { StartDir string // the current directory at the start GetLine string // gsh-getline command as a input line editor ChdirHistory []GChdirHistory // the 1st entry is wd at the start //gshPA syscall.ProcAttr gshPA os.ProcAttr CommandHistory []GCommandHistory CmdCurrent GCommandHistory BackGround bool BackGroundJobs []os.ProcessState; //[]int LastRusage aRusage GshHomeDir string TerminalId int CmdTrace bool // should be [map] CmdTime bool // should be [map] PluginFuncs []PluginInfo iValues []string iDelimiter string // field sepearater of print out iFormat string // default print format (of integer) iValStack ValueStack LastServer GServer RSERV string // [gsh://]host[:port] RWD string // remote (target, there) working directory lastCheckSum CheckSum } func nsleep(ns time.Duration){ time.Sleep(ns) } func usleep(ns time.Duration){ nsleep(ns*1000) } func msleep(ns time.Duration){ nsleep(ns*1000000) } func sleep(ns time.Duration){ nsleep(ns*1000000000) } func strBegins(str, pat string)(bool){ if len(pat) <= len(str){ yes := str[0:len(pat)] == pat //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,yes) return yes } //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,false) return false } func isin(what string, list []string) bool { for _, v := range list { if v == what { return true } } return false } func isinX(what string,list[]string)(int){ for i,v := range list { if v == what { return i } } return -1 } func env(opts []string) { env := os.Environ() if isin("-s", opts){ sort.Slice(env, func(i,j int) bool { return env[i] < env[j] }) } for _, v := range env { fmt.Printf("%v\n",v) } } // - rewriting should be context dependent // - should postpone until the real point of evaluation // - should rewrite only known notation of symobl func scanInt(str string)(val int,leng int){ leng = -1 for i,ch := range str { if '0' <= ch && ch <= '9' { leng = i+1 }else{ break } } if 0 < leng { ival,_ := strconv.Atoi(str[0:leng]) return ival,leng }else{ return 0,0 } } func substHistory(gshCtx *GshContext,str string,i int,rstr string)(leng int,rst string){ if len(str[i+1:]) == 0 { return 0,rstr } hi := 0 histlen := len(gshCtx.CommandHistory) if str[i+1] == '!' { hi = histlen - 1 leng = 1 }else{ hi,leng = scanInt(str[i+1:]) if leng == 0 { return 0,rstr } if hi < 0 { hi = histlen + hi } } if 0 <= hi && hi < histlen { var ext byte if 1 < len(str[i+leng:]) { ext = str[i+leng:][1] } //fmt.Printf("--D-- %v(%c)\n",str[i+leng:],str[i+leng]) if ext == 'f' { leng += 1 xlist := []string{} list := gshCtx.CommandHistory[hi].FoundFile for _,v := range list { //list[i] = escapeWhiteSP(v) xlist = append(xlist,escapeWhiteSP(v)) } //rstr += strings.Join(list," ") rstr += strings.Join(xlist," ") }else if ext == '@' || ext == 'd' { // !N@ .. workdir at the start of the command leng += 1 rstr += gshCtx.CommandHistory[hi].WorkDir }else{ rstr += gshCtx.CommandHistory[hi].CmdLine } }else{ leng = 0 } return leng,rstr } func escapeWhiteSP(str string)(string){ if len(str) == 0 { return "\\z" // empty, to be ignored } rstr := "" for _,ch := range str { switch ch { case '\\': rstr += "\\\\" case ' ': rstr += "\\s" case '\t': rstr += "\\t" case '\r': rstr += "\\r" case '\n': rstr += "\\n" default: rstr += string(ch) } } return rstr } func unescapeWhiteSP(str string)(string){ // strip original escapes rstr := "" for i := 0; i < len(str); i++ { ch := str[i] if ch == '\\' { if i+1 < len(str) { switch str[i+1] { case 'z': continue; } } } rstr += string(ch) } return rstr } func unescapeWhiteSPV(strv []string)([]string){ // strip original escapes ustrv := []string{} for _,v := range strv { ustrv = append(ustrv,unescapeWhiteSP(v)) } return ustrv } // str-expansion // - this should be a macro processor func strsubst(gshCtx *GshContext,str string,histonly bool) string { rbuff := []byte{} if false { //@@U Unicode should be cared as a character return str } //rstr := "" inEsc := 0 // escape characer mode for i := 0; i < len(str); i++ { //fmt.Printf("--D--Subst %v:%v\n",i,str[i:]) ch := str[i] if inEsc == 0 { if ch == '!' { //leng,xrstr := substHistory(gshCtx,str,i,rstr) leng,rs := substHistory(gshCtx,str,i,"") if 0 < leng { //_,rs := substHistory(gshCtx,str,i,"") rbuff = append(rbuff,[]byte(rs)...) i += leng //rstr = xrstr continue } } switch ch { case '\\': inEsc = '\\'; continue //case '%': inEsc = '%'; continue case '$': } } switch inEsc { case '\\': switch ch { case '\\': ch = '\\' case 's': ch = ' ' case 't': ch = '\t' case 'r': ch = '\r' case 'n': ch = '\n' case 'z': inEsc = 0; continue // empty, to be ignored } inEsc = 0 case '%': switch { case ch == '%': ch = '%' case ch == 'T': //rstr = rstr + time.Now().Format(time.Stamp) rs := time.Now().Format(time.Stamp) rbuff = append(rbuff,[]byte(rs)...) inEsc = 0 continue; default: // postpone the interpretation //rstr = rstr + "%" + string(ch) rbuff = append(rbuff,ch) inEsc = 0 continue; } inEsc = 0 } //rstr = rstr + string(ch) rbuff = append(rbuff,ch) } //fmt.Printf("--D--subst(%s)(%s)\n",str,string(rbuff)) return string(rbuff) //return rstr } func showFileInfo(path string, opts []string) { if isin("-l",opts) || isin("-ls",opts) { fi, err := os.Stat(path) if err != nil { fmt.Printf("---------- ((%v))",err) }else{ mod := fi.ModTime() date := mod.Format(time.Stamp) fmt.Printf("%v %8v %s ",fi.Mode(),fi.Size(),date) } } fmt.Printf("%s",path) if isin("-sp",opts) { fmt.Printf(" ") }else if ! isin("-n",opts) { fmt.Printf("\n") } } func userHomeDir()(string,bool){ /* homedir,_ = os.UserHomeDir() // not implemented in older Golang */ homedir,found := os.LookupEnv("HOME") //fmt.Printf("--I-- HOME=%v(%v)\n",homedir,found) if !found { return "/tmp",found } return homedir,found } func toFullpath(path string) (fullpath string) { if path[0] == '/' { return path } pathv := strings.Split(path,DIRSEP) switch { case pathv[0] == ".": pathv[0], _ = os.Getwd() case pathv[0] == "..": // all ones should be interpreted cwd, _ := os.Getwd() ppathv := strings.Split(cwd,DIRSEP) pathv[0] = strings.Join(ppathv,DIRSEP) case pathv[0] == "~": pathv[0],_ = userHomeDir() default: cwd, _ := os.Getwd() pathv[0] = cwd + DIRSEP + pathv[0] } return strings.Join(pathv,DIRSEP) } func IsRegFile(path string)(bool){ fi, err := os.Stat(path) if err == nil { fm := fi.Mode() return fm.IsRegular(); } return false } // Encode / Decode // Encoder func (gshCtx *GshContext)Enc(argv[]string){ file := os.Stdin buff := make([]byte,LINESIZE) li := 0 encoder := base64.NewEncoder(base64.StdEncoding,os.Stdout) for li = 0; ; li++ { count, err := file.Read(buff) if count <= 0 { break } if err != nil { break } encoder.Write(buff[0:count]) } encoder.Close() } func (gshCtx *GshContext)Dec(argv[]string){ decoder := base64.NewDecoder(base64.StdEncoding,os.Stdin) li := 0 buff := make([]byte,LINESIZE) for li = 0; ; li++ { count, err := decoder.Read(buff) if count <= 0 { break } if err != nil { break } os.Stdout.Write(buff[0:count]) } } // lnsp [N] [-crlf][-C \\] func (gshCtx *GshContext)SplitLine(argv[]string){ strRep := isin("-str",argv) // "..."+ reader := bufio.NewReaderSize(os.Stdin,64*1024) ni := 0 toi := 0 for ni = 0; ; ni++ { line, err := reader.ReadString('\n') if len(line) <= 0 { if err != nil { fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d (%v)\n",ni,toi,err) break } } off := 0 ilen := len(line) remlen := len(line) if strRep { os.Stdout.Write([]byte("\"")) } for oi := 0; 0 < remlen; oi++ { olen := remlen addnl := false if 72 < olen { olen = 72 addnl = true } fmt.Fprintf(os.Stderr,"--D-- write %d [%d.%d] %d %d/%d/%d\n", toi,ni,oi,off,olen,remlen,ilen) toi += 1 os.Stdout.Write([]byte(line[0:olen])) if addnl { if strRep { os.Stdout.Write([]byte("\"+\n\"")) }else{ //os.Stdout.Write([]byte("\r\n")) os.Stdout.Write([]byte("\\")) os.Stdout.Write([]byte("\n")) } } line = line[olen:] off += olen remlen -= olen } if strRep { os.Stdout.Write([]byte("\"\n")) } } fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d\n",ni,toi) } // CRC32 crc32 // 1 0000 0100 1100 0001 0001 1101 1011 0111 var CRC32UNIX uint32 = uint32(0x04C11DB7) // Unix cksum var CRC32IEEE uint32 = uint32(0xEDB88320) func byteCRC32add(crc uint32,str[]byte,len uint64)(uint32){ var oi uint64 for oi = 0; oi < len; oi++ { var oct = str[oi] for bi := 0; bi < 8; bi++ { //fprintf(stderr,"--CRC32 %d %X (%d.%d)\n",crc,oct,oi,bi) ovf1 := (crc & 0x80000000) != 0 ovf2 := (oct & 0x80) != 0 ovf := (ovf1 && !ovf2) || (!ovf1 && ovf2) oct <<= 1 crc <<= 1 if ovf { crc ^= CRC32UNIX } } } //fprintf(stderr,"--CRC32 return %d %d\n",crc,len) return crc; } func byteCRC32end(crc uint32, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len) li += 1 len >>= 8 if( len == 0 ){ break } } crc = byteCRC32add(crc,slen,uint64(li)) crc ^= 0xFFFFFFFF return crc } func strCRC32(str string,len uint64)(crc uint32){ crc = byteCRC32add(0,[]byte(str),len) crc = byteCRC32end(crc,len) //fprintf(stderr,"--CRC32 %d %d\n",crc,len) return crc } func CRC32Finish(crc uint32, table *crc32.Table, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len & 0xFF) li += 1 len >>= 8 if( len == 0 ){ break } } crc = crc32.Update(crc,table,slen) crc ^= 0xFFFFFFFF return crc } func (gsh*GshContext)xCksum(path string,argv[]string, sum*CheckSum)(int64){ if isin("-type/f",argv) && !IsRegFile(path){ return 0 } if isin("-type/d",argv) && IsRegFile(path){ return 0 } file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- cksum %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- cksum %v %v\n",path,argv) } bi := 0 var buff = make([]byte,32*1024) var total int64 = 0 var initTime = time.Time{} if sum.Start == initTime { sum.Start = time.Now() } for bi = 0; ; bi++ { count,err := file.Read(buff) if count <= 0 || err != nil { break } if (sum.SumType & SUM_SUM64) != 0 { s := sum.Sum64 for _,c := range buff[0:count] { s += uint64(c) } sum.Sum64 = s } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32add(sum.Crc32Val,buff,uint64(count)) } if (sum.SumType & SUM_CRCIEEE) != 0 { sum.Crc32Val = crc32.Update(sum.Crc32Val,&sum.Crc32Table,buff[0:count]) } // BSD checksum if (sum.SumType & SUM_SUM16_BSD) != 0 { s := sum.Sum16 for _,c := range buff[0:count] { s = (s >> 1) + ((s & 1) << 15) s += int(c) s &= 0xFFFF //fmt.Printf("BSDsum: %d[%d] %d\n",sum.Size+int64(i),i,s) } sum.Sum16 = s } if (sum.SumType & SUM_SUM16_SYSV) != 0 { for bj := 0; bj < count; bj++ { sum.Sum16 += int(buff[bj]) } } total += int64(count) } sum.Done = time.Now() sum.Files += 1 sum.Size += total if !isin("-s",argv) { fmt.Printf("%v ",total) } return 0 } // grep // "lines", "lin" or "lnp" for "(text) line processor" or "scanner" // a*,!ab,c, ... sequentioal combination of patterns // what "LINE" is should be definable // generic line-by-line processing // grep [-v] // cat -n -v // uniq [-c] // tail -f // sed s/x/y/ or awk // grep with line count like wc // rewrite contents if specified func (gsh*GshContext)xGrep(path string,rexpv[]string)(int){ file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- grep %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- grep %v %v\n",path,rexpv) } //reader := bufio.NewReaderSize(file,LINESIZE) reader := bufio.NewReaderSize(file,80) li := 0 found := 0 for li = 0; ; li++ { line, err := reader.ReadString('\n') if len(line) <= 0 { break } if 150 < len(line) { // maybe binary break; } if err != nil { break } if 0 <= strings.Index(string(line),rexpv[0]) { found += 1 fmt.Printf("%s:%d: %s",path,li,line) } } //fmt.Printf("total %d lines %s\n",li,path) //if( 0 < found ){ fmt.Printf("((found %d lines %s))\n",found,path); } return found } // Finder // finding files with it name and contents // file names are ORed // show the content with %x fmt list // ls -R // tar command by adding output type fileSum struct { Err int64 // access error or so Size int64 // content size DupSize int64 // content size from hard links Blocks int64 // number of blocks (of 512 bytes) DupBlocks int64 // Blocks pointed from hard links HLinks int64 // hard links Words int64 Lines int64 Files int64 Dirs int64 // the num. of directories SymLink int64 Flats int64 // the num. of flat files MaxDepth int64 MaxNamlen int64 // max. name length nextRepo time.Time } func showFusage(dir string,fusage *fileSum){ bsume := float64(((fusage.Blocks-fusage.DupBlocks)/2)*1024)/1000000.0 //bsumdup := float64((fusage.Blocks/2)*1024)/1000000.0 fmt.Printf("%v: %v files (%vd %vs %vh) %.6f MB (%.2f MBK)\n", dir, fusage.Files, fusage.Dirs, fusage.SymLink, fusage.HLinks, float64(fusage.Size)/1000000.0,bsume); } const ( S_IFMT = 0170000 S_IFCHR = 0020000 S_IFDIR = 0040000 S_IFREG = 0100000 S_IFLNK = 0120000 S_IFSOCK = 0140000 ) func cumFinfo(fsum *fileSum, path string, staterr error, fstat aStat_t, argv[]string,verb bool)(*fileSum){ now := time.Now() if time.Second <= now.Sub(fsum.nextRepo) { if !fsum.nextRepo.IsZero(){ tstmp := now.Format(time.Stamp) showFusage(tstmp,fsum) } fsum.nextRepo = now.Add(time.Second) } if staterr != nil { fsum.Err += 1 return fsum } fsum.Files += 1 if 1 < fstat.Nlink { // must count only once... // at least ignore ones in the same directory //if finfo.Mode().IsRegular() { if (fstat.Mode & S_IFMT) == S_IFREG { fsum.HLinks += 1 fsum.DupBlocks += int64(fstat.Blocks) //fmt.Printf("---Dup HardLink %v %s\n",fstat.Nlink,path) } } //fsum.Size += finfo.Size() fsum.Size += fstat.Size fsum.Blocks += int64(fstat.Blocks) //if verb { fmt.Printf("(%8dBlk) %s",fstat.Blocks/2,path) } if isin("-ls",argv){ //if verb { fmt.Printf("%4d %8d ",fstat.Blksize,fstat.Blocks) } // fmt.Printf("%d\t",fstat.Blocks/2) } //if finfo.IsDir() if (fstat.Mode & S_IFMT) == S_IFDIR { fsum.Dirs += 1 } //if (finfo.Mode() & os.ModeSymlink) != 0 if (fstat.Mode & S_IFMT) == S_IFLNK { //if verb { fmt.Printf("symlink(%v,%s)\n",fstat.Mode,finfo.Name()) } //{ fmt.Printf("symlink(%o,%s)\n",fstat.Mode,finfo.Name()) } fsum.SymLink += 1 } return fsum } func (gsh*GshContext)xxFindEntv(depth int,total *fileSum,dir string, dstat aStat_t, ei int, entv []string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) // sort entv /* if isin("-t",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].ModTime().Sub(filev[j].ModTime()) }) } */ /* if isin("-u",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].AccTime().Sub(filev[j].AccTime()) }) } if isin("-U",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].CreatTime().Sub(filev[j].CreatTime()) }) } */ /* if isin("-S",argv){ sort.Slice(filev, func(i,j int) bool { return filev[j].Size() < filev[i].Size() }) } */ for _,filename := range entv { for _,npat := range npatv { match := true if npat == "*" { match = true }else{ match, _ = filepath.Match(npat,filename) } path := dir + DIRSEP + filename if !match { continue } var fstat aStat_t staterr := aLstat(path,&fstat) if staterr != nil { if !isin("-w",argv){fmt.Printf("ufind: %v\n",staterr) } continue; } if isin("-du",argv) && (fstat.Mode & S_IFMT) == S_IFDIR { // should not show size of directory in "-du" mode ... }else if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { if isin("-du",argv) { fmt.Printf("%d\t",fstat.Blocks/2) } showFileInfo(path,argv) } if true { // && isin("-du",argv) total = cumFinfo(total,path,staterr,fstat,argv,false) } /* if isin("-wc",argv) { } */ if gsh.lastCheckSum.SumType != 0 { gsh.xCksum(path,argv,&gsh.lastCheckSum); } x := isinX("-grep",argv); // -grep will be convenient like -ls if 0 <= x && x+1 <= len(argv) { // -grep will be convenient like -ls if IsRegFile(path){ found := gsh.xGrep(path,argv[x+1:]) if 0 < found { foundv := gsh.CmdCurrent.FoundFile if len(foundv) < 10 { gsh.CmdCurrent.FoundFile = append(gsh.CmdCurrent.FoundFile,path) } } } } if !isin("-r0",argv) { // -d 0 in du, -depth n in find //total.Depth += 1 if (fstat.Mode & S_IFMT) == S_IFLNK { continue } if dstat.Rdev != fstat.Rdev { fmt.Printf("--I-- don't follow differnet device %v(%v) %v(%v)\n", dir,dstat.Rdev,path,fstat.Rdev) } if (fstat.Mode & S_IFMT) == S_IFDIR { total = gsh.xxFind(depth+1,total,path,npatv,argv) } } } } return total } func (gsh*GshContext)xxFind(depth int,total *fileSum,dir string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) dirfile,oerr := os.OpenFile(dir,os.O_RDONLY,0) if oerr == nil { //fmt.Printf("--I-- %v(%v)[%d]\n",dir,dirfile,dirfile.Fd()) defer dirfile.Close() }else{ } prev := *total var dstat aStat_t staterr := aLstat(dir,&dstat) // should be flstat if staterr != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",staterr) } return total } //filev,err := ioutil.ReadDir(dir) //_,err := ioutil.ReadDir(dir) // ReadDir() heavy and bad for huge directory /* if err != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",err) } return total } */ if depth == 0 { total = cumFinfo(total,dir,staterr,dstat,argv,true) if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { showFileInfo(dir,argv) } } // it it is not a directory, just scan it and finish for ei := 0; ; ei++ { entv,rderr := dirfile.Readdirnames(8*1024) if len(entv) == 0 || rderr != nil { //if rderr != nil { fmt.Printf("[%d] len=%d (%v)\n",ei,len(entv),rderr) } break } if 0 < ei { fmt.Printf("--I-- xxFind[%d] %d large-dir: %s\n",ei,len(entv),dir) } total = gsh.xxFindEntv(depth,total,dir,dstat,ei,entv,npatv,argv) } if isin("-du",argv) { // if in "du" mode fmt.Printf("%d\t%s\n",(total.Blocks-prev.Blocks)/2,dir) } return total } // {ufind|fu|ls} [Files] [// Names] [-- Expressions] // Files is "." by default // Names is "*" by default // Expressions is "-print" by default for "ufind", or -du for "fu" command func (gsh*GshContext)xFind(argv[]string){ if 0 < len(argv) && strBegins(argv[0],"?"){ showFound(gsh,argv) return } if isin("-cksum",argv) || isin("-sum",argv) { gsh.lastCheckSum = CheckSum{} if isin("-sum",argv) && isin("-add",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 }else if isin("-sum",argv) && isin("-size",argv) { gsh.lastCheckSum.SumType |= SUM_SIZE }else if isin("-sum",argv) && isin("-bsd",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_BSD }else if isin("-sum",argv) && isin("-sysv",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_SYSV }else if isin("-sum",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 } if isin("-unix",argv) { gsh.lastCheckSum.SumType |= SUM_UNIXFILE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32UNIX) } if isin("-ieee",argv){ gsh.lastCheckSum.SumType |= SUM_CRCIEEE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32IEEE) } gsh.lastCheckSum.RusgAtStart = Getrusagev() } var total = fileSum{} npats := []string{} for _,v := range argv { if 0 < len(v) && v[0] != '-' { npats = append(npats,v) } if v == "//" { break } if v == "--" { break } if v == "-grep" { break } if v == "-ls" { break } } if len(npats) == 0 { npats = []string{"*"} } cwd := "." // if to be fullpath ::: cwd, _ := os.Getwd() if len(npats) == 0 { npats = []string{"*"} } fusage := gsh.xxFind(0,&total,cwd,npats,argv) if gsh.lastCheckSum.SumType != 0 { var sumi uint64 = 0 sum := &gsh.lastCheckSum if (sum.SumType & SUM_SIZE) != 0 { sumi = uint64(sum.Size) } if (sum.SumType & SUM_SUM64) != 0 { sumi = sum.Sum64 } if (sum.SumType & SUM_SUM16_SYSV) != 0 { s := uint32(sum.Sum16) r := (s & 0xFFFF) + ((s & 0xFFFFFFFF) >> 16) s = (r & 0xFFFF) + (r >> 16) sum.Crc32Val = uint32(s) sumi = uint64(s) } if (sum.SumType & SUM_SUM16_BSD) != 0 { sum.Crc32Val = uint32(sum.Sum16) sumi = uint64(sum.Sum16) } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32end(sum.Crc32Val,uint64(sum.Size)) sumi = uint64(byteCRC32end(sum.Crc32Val,uint64(sum.Size))) } if 1 < sum.Files { fmt.Printf("%v %v // %v / %v files, %v/file\r\n", sumi,sum.Size, abssize(sum.Size),sum.Files, abssize(sum.Size/sum.Files)) }else{ fmt.Printf("%v %v %v\n", sumi,sum.Size,npats[0]) } } if !isin("-grep",argv) { showFusage("total",fusage) } if !isin("-s",argv){ hits := len(gsh.CmdCurrent.FoundFile) if 0 < hits { fmt.Printf("--I-- %d files hits // can be refered with !%df\n", hits,len(gsh.CommandHistory)) } } if gsh.lastCheckSum.SumType != 0 { if isin("-ru",argv) { sum := &gsh.lastCheckSum sum.Done = time.Now() gsh.lastCheckSum.RusgAtEnd = Getrusagev() elps := sum.Done.Sub(sum.Start) fmt.Printf("--cksum-size: %v (%v) / %v files, %v/file\r\n", sum.Size,abssize(sum.Size),sum.Files,abssize(sum.Size/sum.Files)) nanos := int64(elps) dnanos := time.Duration(nanos); fmt.Printf("--cksum-time: %v/total, %v/file, %.1f files/s, %v\r\n", abbtime(dnanos), abbtime(time.Duration(nanos/sum.Files)), (float64(sum.Files)*1000000000.0)/float64(nanos), abbspeed(sum.Size,nanos)) diff := RusageSubv(sum.RusgAtEnd,sum.RusgAtStart) fmt.Printf("--cksum-rusg: %v\n",sRusagef("",argv,diff)) } } return } func showFiles(files[]string){ sp := "" for i,file := range files { if 0 < i { sp = " " } else { sp = "" } fmt.Printf(sp+"%s",escapeWhiteSP(file)) } } func showFound(gshCtx *GshContext, argv[]string){ for i,v := range gshCtx.CommandHistory { if 0 < len(v.FoundFile) { fmt.Printf("!%d (%d) ",i,len(v.FoundFile)) if isin("-ls",argv){ fmt.Printf("\n") for _,file := range v.FoundFile { fmt.Printf("") //sub number? showFileInfo(file,argv) } }else{ showFiles(v.FoundFile) fmt.Printf("\n") } } } } func showMatchFile(filev []os.FileInfo, npat,dir string, argv[]string)(string,bool){ fname := "" found := false for _,v := range filev { match, _ := filepath.Match(npat,(v.Name())) if match { fname = v.Name() found = true //fmt.Printf("[%d] %s\n",i,v.Name()) showIfExecutable(fname,dir,argv) } } return fname,found } func showIfExecutable(name,dir string,argv[]string)(ffullpath string,ffound bool){ var fullpath string if strBegins(name,DIRSEP){ fullpath = name }else if( len(dir) == 0 ){ fullpath = name; }else{ fullpath = dir + DIRSEP + name } fi, err := os.Stat(fullpath) //fmt.Printf("--Dp-- \"%v\"\n-- %v\n",fullpath,err); if err != nil { fullpath += ".exe"; fi, err = os.Stat(fullpath) } if err != nil { fullpath = dir + DIRSEP + name + ".go" fi, err = os.Stat(fullpath) } if err == nil { fm := fi.Mode() if fm.IsRegular() { // R_OK=4, W_OK=2, X_OK=1, F_OK=0 if aAccess(fullpath,5) == nil { ffullpath = fullpath ffound = true if ! isin("-s", argv) { showFileInfo(fullpath,argv) } } } } return ffullpath, ffound } func which(list string, argv []string) (fullpathv []string, itis bool){ if len(argv) <= 1 { fmt.Printf("Usage: which comand [-s] [-a] [-ls]\n") return []string{""}, false } path := argv[1] if strBegins(path,"/") { // should check if excecutable? _,exOK := showIfExecutable(path,"/",argv) fmt.Printf("--D-- %v exOK=%v\n",path,exOK) return []string{path},exOK } pathenv, efound := os.LookupEnv(list) if ! efound { fmt.Printf("--E-- which: no \"%s\" environment\n",list) return []string{""}, false } //fmt.Printf("PATH=%v\n",pathenv); showall := isin("-a",argv) || 0 <= strings.Index(path,"*") dirv := strings.Split(pathenv,PATHSEP) ffound := false ffullpath := path for _, dir := range dirv { if 0 <= strings.Index(path,"*") { // by wild-card list,_ := ioutil.ReadDir(dir) ffullpath, ffound = showMatchFile(list,path,dir,argv) }else{ ffullpath, ffound = showIfExecutable(path,dir,argv) } //if ffound && !isin("-a", argv) { if ffound && !showall { break; } } return []string{ffullpath}, ffound } func stripLeadingWSParg(argv[]string)([]string){ for ; 0 < len(argv); { if len(argv[0]) == 0 { argv = argv[1:] }else{ break } } return argv } func xEval(argv []string, nlend bool){ argv = stripLeadingWSParg(argv) if len(argv) == 0 { fmt.Printf("eval [%%format] [Go-expression]\n") return } pfmt := "%v" if argv[0][0] == '%' { pfmt = argv[0] argv = argv[1:] } if len(argv) == 0 { return } gocode := strings.Join(argv," "); //fmt.Printf("eval [%v] [%v]\n",pfmt,gocode) fset := token.NewFileSet() rval, _ := types.Eval(fset,nil,token.NoPos,gocode) fmt.Printf(pfmt,rval.Value) if nlend { fmt.Printf("\n") } } func getval(name string) (found bool, val int) { /* should expand the name here */ if name == "gsh.pid" { return true, os.Getpid() }else if name == "gsh.ppid" { return true, os.Getppid() } return false, 0 } func echo(argv []string, nlend bool){ for ai := 1; ai < len(argv); ai++ { if 1 < ai { fmt.Printf(" "); } arg := argv[ai] found, val := getval(arg) if found { fmt.Printf("%d",val) }else{ fmt.Printf("%s",arg) } } if nlend { fmt.Printf("\n"); } } func resfile() string { return "gsh.tmp" } //var resF *File func resmap() { //_ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, os.ModeAppend) // https://developpaper.com/solution-to-golang-bad-file-descriptor-problem/ _ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, 0600) if err != nil { fmt.Printf("refF could not open: %s\n",err) }else{ fmt.Printf("refF opened\n") } } // @@2020-0821 func gshScanArg(str string,strip int)(argv []string){ var si = 0 var sb = 0 var inBracket = 0 var arg1 = make([]byte,LINESIZE) var ax = 0 debug := false for ; si < len(str); si++ { if str[si] != ' ' { break } } sb = si for ; si < len(str); si++ { if sb <= si { if debug { fmt.Printf("--Da- +%d %2d-%2d %s ... %s\n", inBracket,sb,si,arg1[0:ax],str[si:]) } } ch := str[si] if ch == '{' { inBracket += 1 if 0 < strip && inBracket <= strip { //fmt.Printf("stripLEV %d <= %d?\n",inBracket,strip) continue } } if 0 < inBracket { if ch == '}' { inBracket -= 1 if 0 < strip && inBracket < strip { //fmt.Printf("stripLEV %d < %d?\n",inBracket,strip) continue } } arg1[ax] = ch ax += 1 continue } if str[si] == ' ' { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,str[sb:si],string(str[si:])) } sb = si+1 ax = 0 continue } arg1[ax] = ch ax += 1 } if sb < si { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,string(arg1[0:ax]),string(str[si:])) } } if debug { fmt.Printf("--Da- %d [%s] => [%d]%v\n",strip,str,len(argv),argv) } return argv } // should get stderr (into tmpfile ?) and return func (gsh*GshContext)Popen(name,mode string)(pin*os.File,pout*os.File,err bool){ //var pv = []int{-1,-1} //syscall.Pipe(pv) xarg := gshScanArg(name,1) name = strings.Join(xarg," ") //pin = os.NewFile(uintptr(pv[0]),"StdoutOf-{"+name+"}") //pout = os.NewFile(uintptr(pv[1]),"StdinOf-{"+name+"}") pin,pout,_ = os.Pipe(); fdix := 0 dir := "?" if mode == "r" { dir = "<" fdix = 1 // read from the stdout of the process }else{ dir = ">" fdix = 0 // write to the stdin of the process } gshPA := gsh.gshPA savfd := gshPA.Files[fdix] var fd uintptr = 0 if mode == "r" { //fd = pout.Fd() //gshPA.Files[fdix] = pout.Fd() gshPA.Files[fdix] = pout; }else{ //fd = pin.Fd() //gshPA.Files[fdix] = pin.Fd() gshPA.Files[fdix] = pin; } // should do this by Goroutine? if false { fmt.Printf("--Ip- Opened fd[%v] %s %v\n",fd,dir,name) fmt.Printf("--RED1 [%d,%d,%d]->[%d,%d,%d]\n", os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd(), pin.Fd(),pout.Fd(),pout.Fd()) } savi := os.Stdin savo := os.Stdout save := os.Stderr os.Stdin = pin os.Stdout = pout os.Stderr = pout gsh.BackGround = true gsh.gshelllh(name) gsh.BackGround = false os.Stdin = savi os.Stdout = savo os.Stderr = save gshPA.Files[fdix] = savfd return pin,pout,false } // External commands func (gsh*GshContext)excommand(exec bool, argv []string) (notf bool,exit bool) { if gsh.CmdTrace { fmt.Printf("--I-- excommand[%v](%v)\n",exec,argv) } gshPA := gsh.gshPA fullpathv, itis := which("PATH",[]string{"which",argv[0],"-s"}) if itis == false { return true,false } fullpath := fullpathv[0] argv = unescapeWhiteSPV(argv) if 0 < strings.Index(fullpath,".go") { nargv := argv // []string{} gofullpathv, itis := which("PATH",[]string{"which","go","-s"}) if itis == false { fmt.Printf("--F-- Go not found\n") return false,true } gofullpath := gofullpathv[0] nargv = []string{ gofullpath, "run", fullpath } fmt.Printf("--I-- %s {%s %s %s}\n",gofullpath, nargv[0],nargv[1],nargv[2]) if exec { syscall.Exec(gofullpath,nargv,os.Environ()) }else{ //pid, _ := syscall.ForkExec(gofullpath,nargv,&gshPA) proc,_ := os.StartProcess(gofullpath,nargv,&gshPA); pstat,_ := proc.Wait(); pid := pstat.Pid(); if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),nargv) //gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) gsh.BackGroundJobs = append(gsh.BackGroundJobs,*pstat) }else{ /* rusage := aRusage {} // syscall.Wait4(pid,nil,0,&rusage) gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage */ /* gsh.LastRusage = *pstat.SysUsage().(*aRusage); gsh.CmdCurrent.Rusagev[1] = *pstat.SysUsage().(*aRusage); */ aSetrusage(&gsh.LastRusage,pstat); gsh.CmdCurrent.Rusagev[1] = gsh.LastRusage; } } }else{ if exec { syscall.Exec(fullpath,argv,os.Environ()) }else{ //pid, _ := syscall.ForkExec(fullpath,argv,&gshPA) proc,_ := os.StartProcess(fullpath,argv,&gshPA); pstat,_ := proc.Wait(); pid := pstat.Pid(); //fmt.Printf("[%d]\n",pid); // '&' to be background if( false ){ fmt.Printf("Sys=%v\n",gshPA.Sys); if( gshPA.Sys != nil ){ //fmt.Printf("inFG=%v\n",gshPA.Sys.Foreground); } } if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),argv) //gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) gsh.BackGroundJobs = append(gsh.BackGroundJobs,*pstat) }else{ /* rusage := aRusage {} // syscall.Wait4(pid,nil,0,&rusage); gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage */ /* gsh.LastRusage = *pstat.SysUsage().(*aRusage); gsh.CmdCurrent.Rusagev[1] = *pstat.SysUsage().(*aRusage); */ aSetrusage(&gsh.LastRusage,pstat); gsh.CmdCurrent.Rusagev[1] = gsh.LastRusage; } } } return false,false } // Builtin Commands func (gshCtx *GshContext) sleep(argv []string) { if len(argv) < 2 { fmt.Printf("Sleep 100ms, 100us, 100ns, ...\n") return } duration := argv[1]; d, err := time.ParseDuration(duration) if err != nil { d, err = time.ParseDuration(duration+"s") if err != nil { fmt.Printf("duration ? %s (%s)\n",duration,err) return } } //fmt.Printf("Sleep %v\n",duration) time.Sleep(d) if 0 < len(argv[2:]) { gshCtx.gshellv(argv[2:]) } } func (gshCtx *GshContext)repeat(argv []string) { if len(argv) < 2 { return } start0 := time.Now() for ri,_ := strconv.Atoi(argv[1]); 0 < ri; ri-- { if 0 < len(argv[2:]) { //start := time.Now() gshCtx.gshellv(argv[2:]) end := time.Now() elps := end.Sub(start0); if( 1000000000 < elps ){ fmt.Printf("(repeat#%d %v)\n",ri,elps); } } } } func (gshCtx *GshContext)gen(argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: %s N\n",argv[0]) return } // should br repeated by "repeat" command count, _ := strconv.Atoi(argv[1]) //fd := gshPA.Files[1] // Stdout //file := os.NewFile(fd,"internalStdOut") file := gshPA.Files[1]; // Stdout fmt.Printf("--I-- Gen. Count=%d to [%d]\n",count,file.Fd()) //buf := []byte{} outdata := "0123 5678 0123 5678 0123 5678 0123 5678\r" for gi := 0; gi < count; gi++ { file.WriteString(outdata) } //file.WriteString("\n") fmt.Printf("\n(%d B)\n",count*len(outdata)); //file.Close() } // Remote Execution // 2020-0820 func Elapsed(from time.Time)(string){ elps := time.Now().Sub(from) if 1000000000 < elps { return fmt.Sprintf("[%5d.%02ds]",elps/1000000000,(elps%1000000000)/10000000) }else if 1000000 < elps { return fmt.Sprintf("[%3d.%03dms]",elps/1000000,(elps%1000000)/1000) }else{ return fmt.Sprintf("[%3d.%03dus]",elps/1000,(elps%1000)) } } //func abbtime(nanos int64)(string){ func abbtime(nanos time.Duration)(string){ if 1000000000 < nanos { return fmt.Sprintf("%d.%02ds",nanos/1000000000,(nanos%1000000000)/10000000) }else if 1000000 < nanos { return fmt.Sprintf("%d.%03dms",nanos/1000000,(nanos%1000000)/1000) }else{ return fmt.Sprintf("%d.%03dus",nanos/1000,(nanos%1000)) } } func abssize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%.3fKiB",fsize/1024) } } func absize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%8.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%8.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%8.3fKiB",fsize/1024) } } func abbspeed(totalB int64,ns int64)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGB/s",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMB/s",MBs) }else{ return fmt.Sprintf("%6.3fKB/s",MBs*1000) } } func abspeed(totalB int64,ns time.Duration)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGBps",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMBps",MBs) }else{ return fmt.Sprintf("%6.3fKBps",MBs*1000) } } func fileRelay(what string,in*os.File,out*os.File,size int64,bsiz int)(wcount int64){ Start := time.Now() buff := make([]byte,bsiz) var total int64 = 0 var rem int64 = size nio := 0 Prev := time.Now() var PrevSize int64 = 0 fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) START\n", what,absize(total),size,nio) for i:= 0; ; i++ { var len = bsiz if int(rem) < len { len = int(rem) } Now := time.Now() Elps := Now.Sub(Prev); if 1000000000 < Now.Sub(Prev) { fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %s\n", what,absize(total),size,nio, abspeed((total-PrevSize),Elps)) Prev = Now; PrevSize = total } rlen := len if in != nil { // should watch the disconnection of out rcc,err := in.Read(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"--En- X: %s read(%v,%v)<%v\n", what,rcc,err,in.Name()) break } rlen = rcc if string(buff[0:10]) == "((SoftEOF " { var ecc int64 = 0 fmt.Sscanf(string(buff),"((SoftEOF %v",&ecc) fmt.Printf(Elapsed(Start)+"--En- X: %s Recv ((SoftEOF %v))/%v\n", what,ecc,total) if ecc == total { break } } } wlen := rlen if out != nil { wcc,err := out.Write(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"-En-- X: %s write(%v,%v)>%v\n", what,wcc,err,out.Name()) break } wlen = wcc } if wlen < rlen { fmt.Printf(Elapsed(Start)+"--En- X: %s incomplete write (%v/%v)\n", what,wlen,rlen) break; } nio += 1 total += int64(rlen) rem -= int64(rlen) if rem <= 0 { break } } Done := time.Now() Elps := float64(Done.Sub(Start))/1000000000 //Seconds TotalMB := float64(total)/1000000 //MB MBps := TotalMB / Elps fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %v %.3fMB/s\n", what,total,size,nio,absize(total),MBps) return total } func tcpPush(clnt *os.File){ // shrink socket buffer and recover usleep(100); } func (gsh*GshContext)RexecServer(argv[]string){ debug := true Start0 := time.Now() Start := Start0 // if local == ":" { local = "0.0.0.0:9999" } local := "0.0.0.0:9999" if 0 < len(argv) { if argv[0] == "-s" { debug = false argv = argv[1:] } } if 0 < len(argv) { argv = argv[1:] } port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("--En- S: Address error: %s (%s)\n",local,err) return } fmt.Printf(Elapsed(Start)+"--In- S: Listening at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Listen error: %s (%s)\n",local,err) return } reqbuf := make([]byte,LINESIZE) res := "" for { fmt.Printf(Elapsed(Start0)+"--In- S: Listening at %s...\n",local); aconn, err := sconn.AcceptTCP() Start = time.Now() if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Accept error: %s (%s)\n",local,err) return } clnt, _ := aconn.File() fd := clnt.Fd() ar := aconn.RemoteAddr() if debug { fmt.Printf(Elapsed(Start0)+"--In- S: Accepted TCP at %s [%d] <- %v\n", local,fd,ar) } res = fmt.Sprintf("220 GShell/%s Server\r\n",VERSION) fmt.Fprintf(clnt,"%s",res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %s",res) } count, err := clnt.Read(reqbuf) if err != nil { fmt.Printf(Elapsed(Start)+"--En- C: (%v %v) %v", count,err,string(reqbuf)) } req := string(reqbuf[:count]) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",string(req)) } reqv := strings.Split(string(req),"\r") cmdv := gshScanArg(reqv[0],0) //cmdv := strings.Split(reqv[0]," ") switch cmdv[0] { case "HELO": res = fmt.Sprintf("250 %v",req) case "GET": // download {remotefile|-zN} [localfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var in *os.File = nil var pseudoEOF = false if 1 < len(cmdv) { fname = cmdv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() in = xin dsize = MaxStreamSize pseudoEOF = true } }else{ xin,err := os.Open(fname) if err != nil { fmt.Printf("--En- GET (%v)\n",err) }else{ defer xin.Close() in = xin fi,_ := xin.Stat() dsize = fi.Size() } } } //fmt.Printf(Elapsed(Start)+"--In- GET %v:%v\n",dsize,bsize) res = fmt.Sprintf("200 %v\r\n",dsize) fmt.Fprintf(clnt,"%v",res) tcpPush(clnt); // should be separated as line in receiver fmt.Printf(Elapsed(Start)+"--In- S: %v",res) wcount := fileRelay("SendGET",in,clnt,dsize,bsize) if pseudoEOF { in.Close() // pipe from the command // show end of stream data (its size) by OOB? SoftEOF := fmt.Sprintf("((SoftEOF %v))",wcount) fmt.Printf(Elapsed(Start)+"--In- S: Send %v\n",SoftEOF) tcpPush(clnt); // to let SoftEOF data apper at the top of recevied data fmt.Fprintf(clnt,"%v\r\n",SoftEOF) tcpPush(clnt); // to let SoftEOF alone in a packet (separate with 200 OK) // with client generated random? //fmt.Printf("--In- L: close %v (%v)\n",in.Fd(),in.Name()) } res = fmt.Sprintf("200 GET done\r\n") case "PUT": // upload {srcfile|-zN} [dstfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var out *os.File = nil if 1 < len(cmdv) { // localfile fmt.Sscanf(cmdv[1],"%d",&dsize) } if 2 < len(cmdv) { fname = cmdv[2] if fname == "-" { // nul dev }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) //fmt.Printf("--In- S: open(%v) out(%v) err(%v)\n",fname,xout,err) if err != nil { fmt.Printf("--En- PUT (%v)\n",err) }else{ out = xout } } fmt.Printf(Elapsed(Start)+"--In- L: open(%v,w) %v (%v)\n", fname,local,err) } fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) fmt.Printf(Elapsed(Start)+"--In- S: 200 %v OK\r\n",dsize) fmt.Fprintf(clnt,"200 %v OK\r\n",dsize) fileRelay("RecvPUT",clnt,out,dsize,bsize) res = fmt.Sprintf("200 PUT done\r\n") default: res = fmt.Sprintf("400 What? %v",req) } swcc,serr := clnt.Write([]byte(res)) if serr != nil { fmt.Printf(Elapsed(Start)+"--In- S: (wc=%v er=%v) %v",swcc,serr,res) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",res) } aconn.Close(); clnt.Close(); } sconn.Close(); } func (gsh*GshContext)RexecClient(argv[]string)(int,string){ debug := true Start := time.Now() if len(argv) == 1 { return -1,"EmptyARG" } argv = argv[1:] if argv[0] == "-serv" { gsh.RexecServer(argv[1:]) return 0,"Server" } remote := "0.0.0.0:9999" if argv[0][0] == '@' { remote = argv[0][1:] argv = argv[1:] } if argv[0] == "-s" { debug = false argv = argv[1:] } dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf(Elapsed(Start)+"Address error: %s (%s)\n",remote,err) return -1,"AddressError" } fmt.Printf(Elapsed(Start)+"--In- C: Connecting to %s\n",remote) serv, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf(Elapsed(Start)+"Connection error: %s (%s)\n",remote,err) return -1,"CannotConnect" } if debug { al := serv.LocalAddr() fmt.Printf(Elapsed(Start)+"--In- C: Connected to %v <- %v\n",remote,al) } req := "" res := make([]byte,LINESIZE) count,err := serv.Read(res) if err != nil { fmt.Printf("--En- S: (%3d,%v) %v",count,err,string(res)) } if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res)) } if argv[0] == "GET" { savPA := gsh.gshPA var bsize int = 64*1024 req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) fmt.Printf(Elapsed(Start)+"--In- C: %v",req) fmt.Fprintf(serv,req) count,err = serv.Read(res) if err != nil { }else{ var dsize int64 = 0 var out *os.File = nil var out_tobeclosed *os.File = nil var fname string = "" var rcode int = 0 var pid int = -1 fmt.Sscanf(string(res),"%d %d",&rcode,&dsize) fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) if 3 <= len(argv) { fname = argv[2] if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout out_tobeclosed = xout pid = 0 // should be its pid } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) if err != nil { fmt.Print("--En- %v\n",err) } out = xout //fmt.Printf("--In-- %d > %s\n",out.Fd(),fname) } } in,_ := serv.File() fileRelay("RecvGET",in,out,dsize,bsize) if 0 <= pid { gsh.gshPA = savPA // recovery of Fd(), and more? fmt.Printf(Elapsed(Start)+"--In- L: close Pipe > %v\n",fname) out_tobeclosed.Close() //syscall.Wait4(pid,nil,0,nil) //@@ } } }else if argv[0] == "PUT" { remote, _ := serv.File() var local *os.File = nil var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var ofile string = "-" //fmt.Printf("--I-- Rex %v\n",argv) if 1 < len(argv) { fname := argv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() //in = xin local = xin fmt.Printf("--In- [%d] < Upload output of %v\n", local.Fd(),fname) ofile = "-from."+fname dsize = MaxStreamSize } }else{ xlocal,err := os.Open(fname) if err != nil { fmt.Printf("--En- (%s)\n",err) local = nil }else{ local = xlocal fi,_ := local.Stat() dsize = fi.Size() defer local.Close() //fmt.Printf("--I-- Rex in(%v / %v)\n",ofile,dsize) } ofile = fname fmt.Printf(Elapsed(Start)+"--In- L: open(%v,r)=%v %v (%v)\n", fname,dsize,local,err) } } if 2 < len(argv) && argv[2] != "" { ofile = argv[2] //fmt.Printf("(%d)%v B.ofile=%v\n",len(argv),argv,ofile) } //fmt.Printf(Elapsed(Start)+"--I-- Rex out(%v)\n",ofile) fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) req = fmt.Sprintf("PUT %v %v \r\n",dsize,ofile) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) count,err = serv.Read(res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) } fileRelay("SendPUT",local,remote,dsize,bsize) }else{ req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) //fmt.Printf("--In- sending RexRequest(%v)\n",len(req)) } //fmt.Printf(Elapsed(Start)+"--In- waiting RexResponse...\n") count,err = serv.Read(res) ress := "" if count == 0 { ress = "(nil)\r\n" }else{ ress = string(res[:count]) } if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: (%d,%v) %v",count,err,ress) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",ress) } serv.Close() //conn.Close() var stat string var rcode int fmt.Sscanf(ress,"%d %s",&rcode,&stat) //fmt.Printf("--D-- Client: %v (%v)",rcode,stat) return rcode,ress } // Remote Shell // gcp file [...] { [host]:[port:][dir] | dir } // -p | -no-p func (gsh*GshContext)FileCopy(argv[]string){ var host = "" var port = "" var upload = false var download = false var xargv = []string{"rex-gcp"} var srcv = []string{} var dstv = []string{} argv = argv[1:] for _,v := range argv { /* if v[0] == '-' { // might be a pseudo file (generated date) continue } */ obj := strings.Split(v,":") //fmt.Printf("%d %v %v\n",len(obj),v,obj) if 1 < len(obj) { host = obj[0] file := "" if 0 < len(host) { gsh.LastServer.host = host }else{ host = gsh.LastServer.host port = gsh.LastServer.port } if 2 < len(obj) { port = obj[1] if 0 < len(port) { gsh.LastServer.port = port }else{ port = gsh.LastServer.port } file = obj[2] }else{ file = obj[1] } if len(srcv) == 0 { download = true srcv = append(srcv,file) continue } upload = true dstv = append(dstv,file) continue } /* idx := strings.Index(v,":") if 0 <= idx { remote = v[0:idx] if len(srcv) == 0 { download = true srcv = append(srcv,v[idx+1:]) continue } upload = true dstv = append(dstv,v[idx+1:]) continue } */ if download { dstv = append(dstv,v) }else{ srcv = append(srcv,v) } } hostport := "@" + host + ":" + port if upload { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"PUT") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v // %v\n",hostport,dstv,srcv,xargv) fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v\n",hostport,dstv,srcv) gsh.RexecClient(xargv) }else if download { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"GET") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v // %v\n",hostport,srcv,dstv,xargv) fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v\n",hostport,srcv,dstv) gsh.RexecClient(xargv) }else{ } } // target func (gsh*GshContext)Trelpath(rloc string)(string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(rloc) twd, _ := os.Getwd() os.Chdir(cwd) tpath := twd + "/" + rloc return tpath } // join to rmote GShell - [user@]host[:port] or cd host:[port]:path func (gsh*GshContext)Rjoin(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- current server = %v\n",gsh.RSERV) return } serv := argv[1] servv := strings.Split(serv,":") if 1 <= len(servv) { if servv[0] == "lo" { servv[0] = "localhost" } } switch len(servv) { case 1: //if strings.Index(serv,":") < 0 { serv = servv[0] + ":" + fmt.Sprintf("%d",GSH_PORT) //} case 2: // host:port serv = strings.Join(servv,":") } xargv := []string{"rex-join","@"+serv,"HELO"} rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Joined (%v) %v\n",rcode,stat) gsh.RSERV = serv }else{ fmt.Printf("--I-- NG, could not joined (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rexec(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- rexec command [ | {file || {command} ]\n",gsh.RSERV) return } /* nargv := gshScanArg(strings.Join(argv," "),0) fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) if nargv[1][0] != '{' { nargv[1] = "{" + nargv[1] + "}" fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) } argv = nargv */ nargv := []string{} nargv = append(nargv,"{"+strings.Join(argv[1:]," ")+"}") fmt.Printf("--D-- nargc=%d %v\n",len(nargv),nargv) argv = nargv xargv := []string{"rex-exec","@"+gsh.RSERV,"GET"} xargv = append(xargv,argv...) xargv = append(xargv,"/dev/tty") rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Rexec (%v) %v\n",rcode,stat) }else{ fmt.Printf("--I-- NG Rexec (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rchdir(argv[]string){ if len(argv) <= 1 { return } cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(argv[1]) twd, _ := os.Getwd() gsh.RWD = twd fmt.Printf("--I-- JWD=%v\n",twd) os.Chdir(cwd) } func (gsh*GshContext)Rpwd(argv[]string){ fmt.Printf("%v\n",gsh.RWD) } func (gsh*GshContext)Rls(argv[]string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) argv[0] = "-ls" gsh.xFind(argv) os.Chdir(cwd) } func (gsh*GshContext)Rput(argv[]string){ var local string = "" var remote string = "" if 1 < len(argv) { local = argv[1] remote = local // base name } if 2 < len(argv) { remote = argv[2] } fmt.Printf("--I-- jput from=%v to=%v\n",local,gsh.Trelpath(remote)) } func (gsh*GshContext)Rget(argv[]string){ var remote string = "" var local string = "" if 1 < len(argv) { remote = argv[1] local = remote // base name } if 2 < len(argv) { local = argv[2] } fmt.Printf("--I-- jget from=%v to=%v\n",gsh.Trelpath(remote),local) } // network // -s, -si, -so // bi-directional, source, sync (maybe socket) func (gshCtx*GshContext)sconnect(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -s [host]:[port[.udp]]\n") return } remote := argv[1] if remote == ":" { remote = "0.0.0.0:9999" } if inTCP { // TCP dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } conn, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); //fd := file.Fd() //fmt.Printf("Socket: connected to %s, socket[%d]\n",remote,fd) fmt.Printf("Socket: connected to %s, socket[%d]\n",remote,file.Fd()) savfd := gshPA.Files[1] //gshPA.Files[1] = fd; gshPA.Files[1] = file; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() }else{ //dport, err := net.ResolveUDPAddr("udp4",remote); dport, err := net.ResolveUDPAddr("udp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } //conn, err := net.DialUDP("udp4",nil,dport) conn, err := net.DialUDP("udp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); //fd := file.Fd() ar := conn.RemoteAddr() //al := conn.LocalAddr() fmt.Printf("Socket: connected to %s [%s], socket[%d]\n", //remote,ar.String(),fd) remote,ar.String(),file.Fd()) savfd := gshPA.Files[1] //gshPA.Files[1] = fd; gshPA.Files[1] = file; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() } } func (gshCtx*GshContext)saccept(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -ac [host]:[port[.udp]]\n") return } local := argv[1] if local == ":" { local = "0.0.0.0:9999" } if inTCP { // TCP port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } //fmt.Printf("Listen at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } //fmt.Printf("Accepting at %s...\n",local); aconn, err := sconn.AcceptTCP() if err != nil { fmt.Printf("Accept error: %s (%s)\n",local,err) return } file, _ := aconn.File() //fd := file.Fd() //fmt.Printf("Accepted TCP at %s [%d]\n",local,fd) fmt.Printf("Accepted TCP at %s [%d]\n",local,file.Fd()) savfd := gshPA.Files[0] //gshPA.Files[0] = fd; gshPA.Files[0] = file; gshCtx.gshellv(argv[2:]) gshPA.Files[0] = savfd sconn.Close(); aconn.Close(); file.Close(); }else{ //port, err := net.ResolveUDPAddr("udp4",local); port, err := net.ResolveUDPAddr("udp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } fmt.Printf("Listen UDP at %s...\n",local); //uconn, err := net.ListenUDP("udp4", port) uconn, err := net.ListenUDP("udp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } file, _ := uconn.File() //fd := file.Fd() ar := uconn.RemoteAddr() remote := "" if ar != nil { remote = ar.String() } if remote == "" { remote = "?" } // not yet received //fmt.Printf("Accepted at %s [%d] <- %s\n",local,fd,"") savfd := gshPA.Files[0] //gshPA.Files[0] = fd; gshPA.Files[0] = file; savenv := gshPA.Env gshPA.Env = append(savenv, "REMOTE_HOST="+remote) gshCtx.gshellv(argv[2:]) gshPA.Env = savenv gshPA.Files[0] = savfd uconn.Close(); file.Close(); } } // empty line command func (gshCtx*GshContext)xPwd(argv[]string){ // execute context command, pwd + date // context notation, representation scheme, to be resumed at re-login cwd, _ := os.Getwd() switch { case isin("-a",argv): gshCtx.ShowChdirHistory(argv) case isin("-ls",argv): showFileInfo(cwd,argv) default: fmt.Printf("%s\n",cwd) case isin("-v",argv): // obsolete emtpy command t := time.Now() date := t.Format(time.UnixDate) exe, _ := os.Executable() host, _ := os.Hostname() fmt.Printf("{PWD=\"%s\"",cwd) fmt.Printf(" HOST=\"%s\"",host) fmt.Printf(" DATE=\"%s\"",date) fmt.Printf(" TIME=\"%s\"",t.String()) fmt.Printf(" PID=\"%d\"",os.Getpid()) fmt.Printf(" EXE=\"%s\"",exe) fmt.Printf("}\n") } } // History // these should be browsed and edited by HTTP browser // show the time of command with -t and direcotry with -ls // openfile-history, sort by -a -m -c // sort by elapsed time by -t -s // search by "more" like interface // edit history // sort history, and wc or uniq // CPU and other resource consumptions // limit showing range (by time or so) // export / import history func (gshCtx *GshContext)xHistory(argv []string){ atWorkDirX := -1 if 1 < len(argv) && strBegins(argv[1],"@") { atWorkDirX,_ = strconv.Atoi(argv[1][1:]) } //fmt.Printf("--D-- showHistory(%v)\n",argv) for i, v := range gshCtx.CommandHistory { // exclude commands not to be listed by default // internal commands may be suppressed by default if v.CmdLine == "" && !isin("-a",argv) { continue; } if 0 <= atWorkDirX { if v.WorkDirX != atWorkDirX { continue } } if !isin("-n",argv){ // like "fc" fmt.Printf("!%-2d ",i) } if isin("-v",argv){ fmt.Println(v) // should be with it date }else{ if isin("-l",argv) || isin("-l0",argv) { elps := v.EndAt.Sub(v.StartAt); start := v.StartAt.Format(time.Stamp) fmt.Printf("@%d ",v.WorkDirX) fmt.Printf("[%v] %11v/t ",start,elps) } if isin("-l",argv) && !isin("-l0",argv){ fmt.Printf("%v",Rusagef("%t %u\t// %s",argv,v.Rusagev)) } if isin("-at",argv) { // isin("-ls",argv){ dhi := v.WorkDirX // workdir history index fmt.Printf("@%d %s\t",dhi,v.WorkDir) // show the FileInfo of the output command?? } fmt.Printf("%s",v.CmdLine) fmt.Printf("\n") } } } // !n - history index func searchHistory(gshCtx GshContext, gline string) (string, bool, bool){ if gline[0] == '!' { hix, err := strconv.Atoi(gline[1:]) if err != nil { fmt.Printf("--E-- (%s : range)\n",hix) return "", false, true } if hix < 0 || len(gshCtx.CommandHistory) <= hix { fmt.Printf("--E-- (%d : out of range)\n",hix) return "", false, true } return gshCtx.CommandHistory[hix].CmdLine, false, false } // search //for i, v := range gshCtx.CommandHistory { //} return gline, false, false } func (gsh*GshContext)cmdStringInHistory(hix int)(cmd string, ok bool){ if 0 <= hix && hix < len(gsh.CommandHistory) { return gsh.CommandHistory[hix].CmdLine,true } return "",false } // temporary adding to PATH environment // cd name -lib for LD_LIBRARY_PATH // chdir with directory history (date + full-path) // -s for sort option (by visit date or so) func (gsh*GshContext)ShowChdirHistory1(i int,v GChdirHistory, argv []string){ fmt.Printf("!%-2d ",v.CmdIndex) // the first command at this WorkDir fmt.Printf("@%d ",i) fmt.Printf("[%v] ",v.MovedAt.Format(time.Stamp)) showFileInfo(v.Dir,argv) } func (gsh*GshContext)ShowChdirHistory(argv []string){ for i, v := range gsh.ChdirHistory { gsh.ShowChdirHistory1(i,v,argv) } } func skipOpts(argv[]string)(int){ for i,v := range argv { if strBegins(v,"-") { }else{ return i } } return -1 } func (gshCtx*GshContext)xChdir(argv []string){ cdhist := gshCtx.ChdirHistory if isin("?",argv ) || isin("-t",argv) || isin("-a",argv) { gshCtx.ShowChdirHistory(argv) return } pwd, _ := os.Getwd() dir := "" if len(argv) <= 1 { dir = toFullpath("~") }else{ i := skipOpts(argv[1:]) if i < 0 { dir = toFullpath("~") }else{ dir = argv[1+i] } } if strBegins(dir,"@") { if dir == "@0" { // obsolete dir = gshCtx.StartDir }else if dir == "@!" { index := len(cdhist) - 1 if 0 < index { index -= 1 } dir = cdhist[index].Dir }else{ index, err := strconv.Atoi(dir[1:]) if err != nil { fmt.Printf("--E-- xChdir(%v)\n",err) dir = "?" }else if len(gshCtx.ChdirHistory) <= index { fmt.Printf("--E-- xChdir(history range error)\n") dir = "?" }else{ dir = cdhist[index].Dir } } } if dir != "?" { err := os.Chdir(dir) if err != nil { fmt.Printf("--E-- xChdir(%s)(%v)\n",argv[1],err) }else{ cwd, _ := os.Getwd() if cwd != pwd { hist1 := GChdirHistory { } hist1.Dir = cwd hist1.MovedAt = time.Now() hist1.CmdIndex = len(gshCtx.CommandHistory)+1 gshCtx.ChdirHistory = append(cdhist,hist1) if !isin("-s",argv){ //cwd, _ := os.Getwd() //fmt.Printf("%s\n",cwd) ix := len(gshCtx.ChdirHistory)-1 gshCtx.ShowChdirHistory1(ix,hist1,argv) } } } } if isin("-ls",argv){ cwd, _ := os.Getwd() showFileInfo(cwd,argv); } } func TimeValSub(tv1 *time.Duration, tv2 *time.Duration){ //*tv1 = syscall.NsecToTimeval(tv1.Nano() - tv2.Nano()) *tv1 -= *tv2; } func RusageSubv(ru1, ru2 [2]aRusage)([2]aRusage){ TimeValSub(&ru1[0].Utime,&ru2[0].Utime) TimeValSub(&ru1[0].Stime,&ru2[0].Stime) TimeValSub(&ru1[1].Utime,&ru2[1].Utime) TimeValSub(&ru1[1].Stime,&ru2[1].Stime) return ru1 } func TimeValAdd(tv1 time.Duration, tv2 time.Duration)(time.Duration){ //tvs := syscall.NsecToTimeval(tv1.Nano() + tv2.Nano()) tvs := tv1 + tv2; return tvs; } /* func RusageAddv(ru1, ru2 [2]aRusage)([2]aRusage){ TimeValAdd(ru1[0].Utime,ru2[0].Utime) TimeValAdd(ru1[0].Stime,ru2[0].Stime) TimeValAdd(ru1[1].Utime,ru2[1].Utime) TimeValAdd(ru1[1].Stime,ru2[1].Stime) return ru1 } */ // Resource Usage func sRusagef(fmtspec string, argv []string, ru [2]aRusage)(string){ // ru[0] self , ru[1] children ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) //uu := (int64(ut.Sec)*1000000 + int64(ut.Usec)) * 1000 //su := (int64(st.Sec)*1000000 + int64(st.Usec)) * 1000 uu := ut; // in nano sec su := st; // in nano sec tu := uu + su ret := fmt.Sprintf("%v/sum",abbtime(tu)) ret += fmt.Sprintf(", %v/usr",abbtime(uu)) ret += fmt.Sprintf(", %v/sys",abbtime(su)) return ret } func Rusagef(fmtspec string, argv []string, ru [2]aRusage)(string){ ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) //fmt.Printf("%d.%06ds/u ",ut.Sec,ut.Usec) //ru[1].Utime.Sec,ru[1].Utime.Usec) //fmt.Printf("%d.%06ds/s ",st.Sec,st.Usec) //ru[1].Stime.Sec,ru[1].Stime.Usec) fmt.Printf("%d.%06ds/u ",ut/1000000000,(ut/1000)%1000000); fmt.Printf("%d.%06ds/s ",st/1000000000,(st/1000)%1000000); return "" } func Getrusagev()([2]aRusage){ var ruv = [2]aRusage{} aGetrusage(aRUSAGE_SELF,&ruv[0]) aGetrusage(aRUSAGE_CHILDREN,&ruv[1]) return ruv } func (gshCtx *GshContext)xTime(argv[]string)(bool){ if 2 <= len(argv){ gshCtx.LastRusage = aRusage{} rusagev1 := Getrusagev() fin := gshCtx.gshellv(argv[1:]) rusagev2 := Getrusagev() showRusage(argv[1],argv,&gshCtx.LastRusage) rusagev := RusageSubv(rusagev2,rusagev1) showRusage("self",argv,&rusagev[0]) showRusage("chld",argv,&rusagev[1]) return fin }else{ rusage:= aRusage {} aGetrusage(aRUSAGE_SELF,&rusage) showRusage("self",argv, &rusage) aGetrusage(aRUSAGE_CHILDREN,&rusage) showRusage("chld",argv, &rusage) return false } } func (gshCtx *GshContext)xJobs(argv[]string){ fmt.Printf("%d Jobs\n",len(gshCtx.BackGroundJobs)) for ji, pid := range gshCtx.BackGroundJobs { //wstat := syscall.WaitStatus {0} rusage := aRusage {} //wpid, err := syscall.Wait4(pid,&wstat,syscall.WNOHANG,&rusage); //wpid, err := syscall.Wait4(pid,nil,syscall.WNOHANG,&rusage); wpid := pid.Pid(); err := errors.New("stab_NoError"); if err != nil { fmt.Printf("--E-- %%%d [%d] (%v)\n",ji,wpid,err) }else{ fmt.Printf("%%%d[%d]\n",ji,wpid) showRusage("chld",argv,&rusage) } } } func (gsh*GshContext)inBackground(argv[]string)(bool){ if gsh.CmdTrace { fmt.Printf("--I-- inBackground(%v)\n",argv) } gsh.BackGround = true // set background option xfin := false xfin = gsh.gshellv(argv) gsh.BackGround = false return xfin } // -o file without command means just opening it and refer by #N // should be listed by "files" comnmand func (gshCtx*GshContext)xOpen(argv[]string){ //var pv = []int{-1,-1} //err := syscall.Pipe(pv) //fmt.Printf("--I-- pipe()=[#%d,#%d](%v)\n",pv[0],pv[1],err) pin,pout,err := os.Pipe(); fmt.Printf("--I-- pipe()=[#%d,#%d](%v)\n",pin.Fd(),pout.Fd(),err) } func (gshCtx*GshContext)fromPipe(argv[]string){ } func (gshCtx*GshContext)xClose(argv[]string){ } // redirect func (gshCtx*GshContext)redirect(argv[]string)(bool){ if len(argv) < 2 { return false } cmd := argv[0] fname := argv[1] var file *os.File = nil fdix := 0 mode := os.O_RDONLY switch { case cmd == "-i" || cmd == "<": fdix = 0 mode = os.O_RDONLY case cmd == "-o" || cmd == ">": fdix = 1 mode = os.O_RDWR | os.O_CREATE case cmd == "-a" || cmd == ">>": fdix = 1 mode = os.O_RDWR | os.O_CREATE | os.O_APPEND } if fname[0] == '#' { fd, err := strconv.Atoi(fname[1:]) if err != nil { fmt.Printf("--E-- (%v)\n",err) return false } file = os.NewFile(uintptr(fd),"MaybePipe") }else{ xfile, err := os.OpenFile(argv[1], mode, 0600) if err != nil { fmt.Printf("--E-- (%s)\n",err) return false } file = xfile } gshPA := gshCtx.gshPA savfd := gshPA.Files[fdix] //gshPA.Files[fdix] = file.Fd() gshPA.Files[fdix] = file; fmt.Printf("--I-- Opened [%d] %s\n",file.Fd(),argv[1]) gshCtx.gshellv(argv[2:]) gshPA.Files[fdix] = savfd return false } //fmt.Fprintf(res, "GShell Status: %q", html.EscapeString(req.URL.Path)) func httpHandler(res http.ResponseWriter, req *http.Request){ path := req.URL.Path fmt.Printf("--I-- Got HTTP Request(%s)\n",path) { gshCtxBuf, _ := setupGshContext() gshCtx := &gshCtxBuf fmt.Printf("--I-- %s\n",path[1:]) gshCtx.tgshelll(path[1:]) } fmt.Fprintf(res, "Hello(^-^)//\n%s\n",path) } func (gshCtx *GshContext) httpServer(argv []string){ http.HandleFunc("/", httpHandler) accport := "localhost:9999" fmt.Printf("--I-- HTTP Server Start at [%s]\n",accport) http.ListenAndServe(accport,nil) } func (gshCtx *GshContext)xGo(argv[]string){ go gshCtx.gshellv(argv[1:]); } func (gshCtx *GshContext) xPs(argv[]string)(){ } // Plugin // plugin [-ls [names]] to list plugins // Reference: plugin source code func (gshCtx *GshContext) whichPlugin(name string,argv[]string)(pi *PluginInfo){ pi = nil for _,p := range gshCtx.PluginFuncs { if p.Name == name && pi == nil { pi = &p } if !isin("-s",argv){ //fmt.Printf("%v %v ",i,p) if isin("-ls",argv){ showFileInfo(p.Path,argv) }else{ fmt.Printf("%s\n",p.Name) } } } return pi } func (gshCtx *GshContext) xPlugin(argv[]string) (error) { if len(argv) == 0 || argv[0] == "-ls" { gshCtx.whichPlugin("",argv) return nil } name := argv[0] Pin := gshCtx.whichPlugin(name,[]string{"-s"}) if Pin != nil { os.Args = argv // should be recovered? Pin.Addr.(func())() return nil } sofile := toFullpath(argv[0] + ".so") // or find it by which($PATH) p, err := plugin.Open(sofile) if err != nil { fmt.Printf("--E-- plugin.Open(%s)(%v)\n",sofile,err) return err } fname := "Main" f, err := p.Lookup(fname) if( err != nil ){ fmt.Printf("--E-- plugin.Lookup(%s)(%v)\n",fname,err) return err } pin := PluginInfo {p,f,name,sofile} gshCtx.PluginFuncs = append(gshCtx.PluginFuncs,pin) fmt.Printf("--I-- added (%d)\n",len(gshCtx.PluginFuncs)) //fmt.Printf("--I-- first call(%s:%s)%v\n",sofile,fname,argv) os.Args = argv f.(func())() return err } func (gshCtx*GshContext)Args(argv[]string){ for i,v := range os.Args { fmt.Printf("[%v] %v\n",i,v) } } func (gshCtx *GshContext) showVersion(argv[]string){ if isin("-l",argv) { fmt.Printf("%v/%v (%v)",NAME,VERSION,DATE); }else{ fmt.Printf("%v",VERSION); } if isin("-a",argv) { fmt.Printf(" %s",AUTHOR) } if !isin("-n",argv) { fmt.Printf("\n") } } // Scanf // string decomposer // scanf [format] [input] func scanv(sstr string)(strv[]string){ strv = strings.Split(sstr," ") return strv } func scanUntil(src,end string)(rstr string,leng int){ idx := strings.Index(src,end) if 0 <= idx { rstr = src[0:idx] return rstr,idx+len(end) } return src,0 } // -bn -- display base-name part only // can be in some %fmt, for sed rewriting func (gsh*GshContext)printVal(fmts string, vstr string, optv[]string){ //vint,err := strconv.Atoi(vstr) var ival int64 = 0 n := 0 err := error(nil) if strBegins(vstr,"_") { vx,_ := strconv.Atoi(vstr[1:]) if vx < len(gsh.iValues) { vstr = gsh.iValues[vx] }else{ } } // should use Eval() if strBegins(vstr,"0x") { n,err = fmt.Sscanf(vstr[2:],"%x",&ival) }else{ n,err = fmt.Sscanf(vstr,"%d",&ival) //fmt.Printf("--D-- n=%d err=(%v) {%s}=%v\n",n,err,vstr, ival) } if n == 1 && err == nil { //fmt.Printf("--D-- formatn(%v) ival(%v)\n",fmts,ival) fmt.Printf("%"+fmts,ival) }else{ if isin("-bn",optv){ fmt.Printf("%"+fmts,filepath.Base(vstr)) }else{ fmt.Printf("%"+fmts,vstr) } } } func (gsh*GshContext)printfv(fmts,div string,argv[]string,optv[]string,list[]string){ //fmt.Printf("{%d}",len(list)) //curfmt := "v" outlen := 0 curfmt := gsh.iFormat if 0 < len(fmts) { for xi := 0; xi < len(fmts); xi++ { fch := fmts[xi] if fch == '%' { if xi+1 < len(fmts) { curfmt = string(fmts[xi+1]) gsh.iFormat = curfmt xi += 1 if xi+1 < len(fmts) && fmts[xi+1] == '(' { vals,leng := scanUntil(fmts[xi+2:],")") //fmt.Printf("--D-- show fmt(%v) val(%v) next(%v)\n",curfmt,vals,leng) gsh.printVal(curfmt,vals,optv) xi += 2+leng-1 outlen += 1 } continue } } if fch == '_' { hi,leng := scanInt(fmts[xi+1:]) if 0 < leng { if hi < len(gsh.iValues) { gsh.printVal(curfmt,gsh.iValues[hi],optv) outlen += 1 // should be the real length }else{ fmt.Printf("((out-range))") } xi += leng continue; } } fmt.Printf("%c",fch) outlen += 1 } }else{ //fmt.Printf("--D-- print {%s}\n") for i,v := range list { if 0 < i { fmt.Printf(div) } gsh.printVal(curfmt,v,optv) outlen += 1 } } if 0 < outlen { fmt.Printf("\n") } } func (gsh*GshContext)Scanv(argv[]string){ //fmt.Printf("--D-- Scanv(%v)\n",argv) if len(argv) == 1 { return } argv = argv[1:] fmts := "" if strBegins(argv[0],"-F") { fmts = argv[0] gsh.iDelimiter = fmts argv = argv[1:] } input := strings.Join(argv," ") if fmts == "" { // simple decomposition v := scanv(input) gsh.iValues = v //fmt.Printf("%v\n",strings.Join(v,",")) }else{ v := make([]string,8) n,err := fmt.Sscanf(input,fmts,&v[0],&v[1],&v[2],&v[3]) fmt.Printf("--D-- Scanf ->(%v) n=%d err=(%v)\n",v,n,err) gsh.iValues = v } } func (gsh*GshContext)Printv(argv[]string){ if false { //@@U fmt.Printf("%v\n",strings.Join(argv[1:]," ")) return } //fmt.Printf("--D-- Printv(%v)\n",argv) //fmt.Printf("%v\n",strings.Join(gsh.iValues,",")) div := gsh.iDelimiter fmts := "" argv = argv[1:] if 0 < len(argv) { if strBegins(argv[0],"-F") { div = argv[0][2:] argv = argv[1:] } } optv := []string{} for _,v := range argv { if strBegins(v,"-"){ optv = append(optv,v) argv = argv[1:] }else{ break; } } if 0 < len(argv) { fmts = strings.Join(argv," ") } gsh.printfv(fmts,div,argv,optv,gsh.iValues) } func (gsh*GshContext)Basename(argv[]string){ for i,v := range gsh.iValues { gsh.iValues[i] = filepath.Base(v) } } func (gsh*GshContext)Sortv(argv[]string){ sv := gsh.iValues sort.Slice(sv , func(i,j int) bool { return sv[i] < sv[j] }) } func (gsh*GshContext)Shiftv(argv[]string){ vi := len(gsh.iValues) if 0 < vi { if isin("-r",argv) { top := gsh.iValues[0] gsh.iValues = append(gsh.iValues[1:],top) }else{ gsh.iValues = gsh.iValues[1:] } } } func (gsh*GshContext)Enq(argv[]string){ } func (gsh*GshContext)Deq(argv[]string){ } func (gsh*GshContext)Push(argv[]string){ gsh.iValStack = append(gsh.iValStack,argv[1:]) fmt.Printf("depth=%d\n",len(gsh.iValStack)) } func (gsh*GshContext)Dump(argv[]string){ for i,v := range gsh.iValStack { fmt.Printf("%d %v\n",i,v) } } func (gsh*GshContext)Pop(argv[]string){ depth := len(gsh.iValStack) if 0 < depth { v := gsh.iValStack[depth-1] if isin("-cat",argv){ gsh.iValues = append(gsh.iValues,v...) }else{ gsh.iValues = v } gsh.iValStack = gsh.iValStack[0:depth-1] fmt.Printf("depth=%d %s\n",len(gsh.iValStack),gsh.iValues) }else{ fmt.Printf("depth=%d\n",depth) } } // Command Interpreter func (gshCtx*GshContext)gshellv(argv []string) (fin bool) { fin = false if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv((%d))\n",len(argv)) } if len(argv) <= 0 { return false } xargv := []string{} for ai := 0; ai < len(argv); ai++ { xargv = append(xargv,strsubst(gshCtx,argv[ai],false)) } argv = xargv if false { for ai := 0; ai < len(argv); ai++ { fmt.Printf("[%d] %s [%d]%T\n", ai,argv[ai],len(argv[ai]),argv[ai]) } } cmd := argv[0] if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv(%d)%v\n",len(argv),argv) } switch { // https://tour.golang.org/flowcontrol/11 case cmd == "": gshCtx.xPwd([]string{}); // emtpy command case cmd == "-x": gshCtx.CmdTrace = ! gshCtx.CmdTrace case cmd == "-xt": gshCtx.CmdTime = ! gshCtx.CmdTime case cmd == "-ot": gshCtx.sconnect(true, argv) case cmd == "-ou": gshCtx.sconnect(false, argv) case cmd == "-it": gshCtx.saccept(true , argv) case cmd == "-iu": gshCtx.saccept(false, argv) case cmd == "-i" || cmd == "<" || cmd == "-o" || cmd == ">" || cmd == "-a" || cmd == ">>" || cmd == "-s" || cmd == "><": gshCtx.redirect(argv) case cmd == "|": gshCtx.fromPipe(argv) case cmd == "args": gshCtx.Args(argv) case cmd == "bg" || cmd == "-bg": rfin := gshCtx.inBackground(argv[1:]) return rfin case cmd == "-bn": gshCtx.Basename(argv) case cmd == "call": _,_ = gshCtx.excommand(false,argv[1:]) case cmd == "cd" || cmd == "chdir": gshCtx.xChdir(argv); case cmd == "-cksum": gshCtx.xFind(argv) case cmd == "-sum": gshCtx.xFind(argv) case cmd == "-sumtest": str := "" if 1 < len(argv) { str = argv[1] } crc := strCRC32(str,uint64(len(str))) fprintf(stderr,"%v %v\n",crc,len(str)) case cmd == "close": gshCtx.xClose(argv) case cmd == "gcp": gshCtx.FileCopy(argv) case cmd == "dec" || cmd == "decode": gshCtx.Dec(argv) case cmd == "#define": case cmd == "dic" || cmd == "d": xDic(argv) case cmd == "dump": gshCtx.Dump(argv) case cmd == "echo" || cmd == "e": echo(argv,true) case cmd == "enc" || cmd == "encode": gshCtx.Enc(argv) case cmd == "env": env(argv) case cmd == "eval": xEval(argv[1:],true) case cmd == "ev" || cmd == "events": dumpEvents(argv) case cmd == "exec": _,_ = gshCtx.excommand(true,argv[1:]) // should not return here case cmd == "exit" || cmd == "quit": // write Result code EXIT to 3> return true case cmd == "fdls": // dump the attributes of fds (of other process) case cmd == "-find" || cmd == "fin" || cmd == "ufind" || cmd == "uf": gshCtx.xFind(argv[1:]) case cmd == "fu": gshCtx.xFind(argv[1:]) case cmd == "fork": // mainly for a server case cmd == "-gen": gshCtx.gen(argv) case cmd == "-go": gshCtx.xGo(argv) case cmd == "-grep": gshCtx.xFind(argv) case cmd == "gdeq": gshCtx.Deq(argv) case cmd == "genq": gshCtx.Enq(argv) case cmd == "gpop": gshCtx.Pop(argv) case cmd == "gpush": gshCtx.Push(argv) case cmd == "history" || cmd == "hi": // hi should be alias gshCtx.xHistory(argv) case cmd == "jobs": gshCtx.xJobs(argv) case cmd == "lnsp" || cmd == "nlsp": gshCtx.SplitLine(argv) case cmd == "-ls": gshCtx.xFind(argv) case cmd == "nop": // do nothing case cmd == "pipe": gshCtx.xOpen(argv) case cmd == "plug" || cmd == "plugin" || cmd == "pin": gshCtx.xPlugin(argv[1:]) case cmd == "print" || cmd == "-pr": // output internal slice // also sprintf should be gshCtx.Printv(argv) case cmd == "ps": gshCtx.xPs(argv) case cmd == "pstitle": // to be gsh.title case cmd == "rexecd" || cmd == "rexd": gshCtx.RexecServer(argv) case cmd == "rexec" || cmd == "rex": gshCtx.RexecClient(argv) case cmd == "repeat" || cmd == "rep": // repeat cond command gshCtx.repeat(argv) case cmd == "replay": gshCtx.xReplay(argv) case cmd == "scan": // scan input (or so in fscanf) to internal slice (like Files or map) gshCtx.Scanv(argv) case cmd == "set": // set name ... case cmd == "serv": gshCtx.httpServer(argv) case cmd == "shift": gshCtx.Shiftv(argv) case cmd == "sleep": gshCtx.sleep(argv) case cmd == "-sort": gshCtx.Sortv(argv) case cmd == "j" || cmd == "join": gshCtx.Rjoin(argv) case cmd == "a" || cmd == "alpa": gshCtx.Rexec(argv) case cmd == "jcd" || cmd == "jchdir": gshCtx.Rchdir(argv) case cmd == "jget": gshCtx.Rget(argv) case cmd == "jls": gshCtx.Rls(argv) case cmd == "jput": gshCtx.Rput(argv) case cmd == "jpwd": gshCtx.Rpwd(argv) case cmd == "time": fin = gshCtx.xTime(argv) case cmd == "ungets": if 1 < len(argv) { ungets(argv[1]+"\n") }else{ } case cmd == "pwd": gshCtx.xPwd(argv); case cmd == "ver" || cmd == "-ver" || cmd == "version": gshCtx.showVersion(argv) case cmd == "where": // data file or so? case cmd == "which": which("PATH",argv); case cmd == "gj" && 1 < len(argv) && argv[1] == "listen": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "serve": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "join": go gj_client(argv[1:]); case cmd == "gj": jsend(argv); case cmd == "jsend": jsend(argv); default: if gshCtx.whichPlugin(cmd,[]string{"-s"}) != nil { gshCtx.xPlugin(argv) }else{ notfound,_ := gshCtx.excommand(false,argv) if notfound { fmt.Printf("--E-- command not found (%v)\n",cmd) } } } return fin } func (gsh*GshContext)gshelll(gline string) (rfin bool) { argv := strings.Split(string(gline)," ") fin := gsh.gshellv(argv) return fin } func (gsh*GshContext)tgshelll(gline string)(xfin bool){ start := time.Now() fin := gsh.gshelll(gline) end := time.Now() elps := end.Sub(start); if gsh.CmdTime { fmt.Printf("--T-- " + time.Now().Format(time.Stamp) + "(%d.%09ds)\n", elps/1000000000,elps%1000000000) } return fin } func Ttyid() (int) { fi, err := os.Stdin.Stat() if err != nil { return 0; } //fmt.Printf("Stdin: %v Dev=%d\n", // fi.Mode(),fi.Mode()&os.ModeDevice) if (fi.Mode() & os.ModeDevice) != 0 { stat := aStat_t{}; err := aFstat(0,&stat) if err != nil { //fmt.Printf("--I-- Stdin: (%v)\n",err) }else{ //fmt.Printf("--I-- Stdin: rdev=%d %d\n", // stat.Rdev&0xFF,stat.Rdev); //fmt.Printf("--I-- Stdin: tty%d\n",stat.Rdev&0xFF); return int(stat.Rdev & 0xFF) } } return 0 } func (gshCtx *GshContext) ttyfile() string { //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) ttyfile := gshCtx.GshHomeDir + "/" + "gsh-tty" + fmt.Sprintf("%02d",gshCtx.TerminalId) //strconv.Itoa(gshCtx.TerminalId) //fmt.Printf("--I-- ttyfile=%s\n",ttyfile) return ttyfile } func (gshCtx *GshContext) ttyline()(*os.File){ file, err := os.OpenFile(gshCtx.ttyfile(),os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if err != nil { fmt.Printf("--F-- cannot open %s (%s)\n",gshCtx.ttyfile(),err) return file; } return file } func (gshCtx *GshContext)getline(hix int, skipping bool, prevline string) (string) { if( skipping ){ reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) }else if true { return xgetline(hix,prevline,gshCtx) } /* else if( with_exgetline && gshCtx.GetLine != "" ){ //var xhix int64 = int64(hix); // cast newenv := os.Environ() newenv = append(newenv, "GSH_LINENO="+strconv.FormatInt(int64(hix),10) ) tty := gshCtx.ttyline() tty.WriteString(prevline) Pa := os.ProcAttr { "", // start dir newenv, //os.Environ(), []*os.File{os.Stdin,os.Stdout,os.Stderr,tty}, nil, } //fmt.Printf("--I-- getline=%s // %s\n",gsh_getlinev[0],gshCtx.GetLine) proc, err := os.StartProcess(gsh_getlinev[0],[]string{"getline","getline"},&Pa) if err != nil { fmt.Printf("--F-- getline process error (%v)\n",err) // for ; ; { } return "exit (getline program failed)" } //stat, err := proc.Wait() proc.Wait() buff := make([]byte,LINESIZE) count, err := tty.Read(buff) //_, err = tty.Read(buff) //fmt.Printf("--D-- getline (%d)\n",count) if err != nil { if ! (count == 0) { // && err.String() == "EOF" ) { fmt.Printf("--E-- getline error (%s)\n",err) } }else{ //fmt.Printf("--I-- getline OK \"%s\"\n",buff) } tty.Close() gline := string(buff[0:count]) return gline }else */ { // if isatty { fmt.Printf("!%d",hix) fmt.Print(PROMPT) // } reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) } } //== begin ======================================================= getline /* * getline.c * 2020-0819 extracted from dog.c * getline.go * 2020-0822 ported to Go */ /* package main // getline main import ( "fmt" // fmt "strings" // strings "os" // os "syscall" // syscall //"bytes" // os //"os/exec" // os ) */ // C language compatibility functions var errno = 0 var stdin *os.File = os.Stdin var stdout *os.File = os.Stdout var stderr *os.File = os.Stderr var EOF = -1 var NULL = 0 type FILE os.File type StrBuff []byte var NULL_FP *os.File = nil var NULLSP = 0 //var LINESIZE = 1024 func system(cmdstr string)(int){ //PA := syscall.ProcAttr { PA := os.ProcAttr { "", // the starting directory os.Environ(), //[]uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, []*os.File{os.Stdin,os.Stdout,os.Stderr}, nil, } argv := strings.Split(cmdstr," ") //pid,err := syscall.ForkExec(argv[0],argv,&PA) proc,err := os.StartProcess(argv[0],argv,&PA); if( err != nil ){ //fmt.Printf("--Es-- system(%v)\n(%v)\n",cmdstr,err); return -1; } pstat,_ := proc.Wait(); pid := pstat.Pid(); if( err != nil ){ fmt.Printf("--E-- pid=%v syscall(%v) err(%v)\n",pid,cmdstr,err) } //syscall.Wait4(pid,nil,0,nil) //fmt.Printf("====E== pid=%d exit=%v stat=%v\n",pid,pstat.Exited(),pstat.ExitCode()); /* argv := strings.Split(cmdstr," ") fmt.Fprintf(os.Stderr,"--I-- system(%v)\n",argv) //cmd := exec.Command(argv[0:]...) cmd := exec.Command(argv[0],argv[1],argv[2]) cmd.Stdin = strings.NewReader("output of system") var out bytes.Buffer cmd.Stdout = &out var serr bytes.Buffer cmd.Stderr = &serr err := cmd.Run() if err != nil { fmt.Fprintf(os.Stderr,"--E-- system(%v)err(%v)\n",argv,err) fmt.Printf("ERR:%s\n",serr.String()) }else{ fmt.Printf("%s",out.String()) } */ return 0 } func atoi(str string)(ret int){ ret,err := fmt.Sscanf(str,"%d",ret) if err == nil { return ret }else{ // should set errno return 0 } } func getenv(name string)(string){ val,got := os.LookupEnv(name) if got { return val }else{ return "?" } } func strcpy(dst StrBuff, src string){ var i int srcb := []byte(src) for i = 0; i < len(src) && srcb[i] != 0; i++ { dst[i] = srcb[i] } dst[i] = 0 } func xstrcpy(dst StrBuff, src StrBuff){ dst = src } func strcat(dst StrBuff, src StrBuff){ dst = append(dst,src...) } func strdup(str StrBuff)(string){ return string(str[0:strlen(str)]) } func sstrlen(str string)(int){ return len(str) } func strlen(str StrBuff)(int){ var i int for i = 0; i < len(str) && str[i] != 0; i++ { } return i } func sizeof(data StrBuff)(int){ return len(data) } func isatty(fd int)(ret int){ return 1 } func fopen(file string,mode string)(fp*os.File){ if mode == "r" { fp,err := os.Open(file) if( err != nil ){ fmt.Printf("--E-- fopen(%s,%s)=(%v)\n",file,mode,err) return NULL_FP; } return fp; }else{ fp,err := os.OpenFile(file,os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if( err != nil ){ return NULL_FP; } return fp; } } func fclose(fp*os.File){ fp.Close() } func fflush(fp *os.File)(int){ return 0 } func fgetc(fp*os.File)(int){ var buf [1]byte _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } func sfgets(str*string, size int, fp*os.File)(int){ buf := make(StrBuff,size) var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fgets(buf StrBuff, size int, fp*os.File)(int){ var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fputc(ch int , fp*os.File)(int){ var buf [1]byte buf[0] = byte(ch) fp.Write(buf[0:1]) return 0 } func fputs(buf StrBuff, fp*os.File)(int){ fp.Write(buf) return 0 } func xfputss(str string, fp*os.File)(int){ return fputs([]byte(str),fp) } func sscanf(str StrBuff,fmts string, params ...interface{})(int){ fmt.Sscanf(string(str[0:strlen(str)]),fmts,params...) return 0 } func fprintf(fp*os.File,fmts string, params ...interface{})(int){ fmt.Fprintf(fp,fmts,params...) return 0 } // Command Line IME //----------------------------------------------------------------------- MyIME var MyIMEVER = "MyIME/0.0.2"; type RomKana struct { dic string // dictionaly ID pat string // input pattern out string // output pattern hit int64 // count of hit and used } var dicents = 0 var romkana [1024]RomKana var Romkan []RomKana func isinDic(str string)(int){ for i,v := range Romkan { if v.pat == str { return i } } return -1 } const ( DIC_COM_LOAD = "im" DIC_COM_DUMP = "s" DIC_COM_LIST = "ls" DIC_COM_ENA = "en" DIC_COM_DIS = "di" ) func helpDic(argv []string){ out := stderr cmd := "" if 0 < len(argv) { cmd = argv[0] } fprintf(out,"--- %v Usage\n",cmd) fprintf(out,"... Commands\n") fprintf(out,"... %v %-3v [dicName] [dicURL ] -- Import dictionary\n",cmd,DIC_COM_LOAD) fprintf(out,"... %v %-3v [pattern] -- Search in dictionary\n",cmd,DIC_COM_DUMP) fprintf(out,"... %v %-3v [dicName] -- List dictionaries\n",cmd,DIC_COM_LIST) fprintf(out,"... %v %-3v [dicName] -- Disable dictionaries\n",cmd,DIC_COM_DIS) fprintf(out,"... %v %-3v [dicName] -- Enable dictionaries\n",cmd,DIC_COM_ENA) fprintf(out,"... Keys ... %v\n","ESC can be used for '\\'") fprintf(out,"... \\c -- Reverse the case of the last character\n",) fprintf(out,"... \\i -- Replace input with translated text\n",) fprintf(out,"... \\j -- On/Off translation mode\n",) fprintf(out,"... \\l -- Force Lower Case\n",) fprintf(out,"... \\u -- Force Upper Case (software CapsLock)\n",) fprintf(out,"... \\v -- Show translation actions\n",) fprintf(out,"... \\x -- Replace the last input character with it Hexa-Decimal\n",) } func xDic(argv[]string){ if len(argv) <= 1 { helpDic(argv) return } argv = argv[1:] var debug = false var info = false var silent = false var dump = false var builtin = false cmd := argv[0] argv = argv[1:] opt := "" arg := "" if 0 < len(argv) { arg1 := argv[0] if arg1[0] == '-' { switch arg1 { default: fmt.Printf("--Ed-- Unknown option(%v)\n",arg1) return case "-b": builtin = true case "-d": debug = true case "-s": silent = true case "-v": info = true } opt = arg1 argv = argv[1:] } } dicName := "" dicURL := "" if 0 < len(argv) { arg = argv[0] dicName = arg argv = argv[1:] } if 0 < len(argv) { dicURL = argv[0] argv = argv[1:] } if false { fprintf(stderr,"--Dd-- com(%v) opt(%v) arg(%v)\n",cmd,opt,arg) } if cmd == DIC_COM_LOAD { //dicType := "" dicBody := "" if !builtin && dicName != "" && dicURL == "" { f,err := os.Open(dicName) if err == nil { dicURL = dicName }else{ f,err = os.Open(dicName+".html") if err == nil { dicURL = dicName+".html" }else{ f,err = os.Open("gshdic-"+dicName+".html") if err == nil { dicURL = "gshdic-"+dicName+".html" } } } if err == nil { var buf = make([]byte,128*1024) count,err := f.Read(buf) f.Close() if info { fprintf(stderr,"--Id-- ReadDic(%v,%v)\n",count,err) } dicBody = string(buf[0:count]) } } if dicBody == "" { switch arg { default: dicName = "WorldDic" dicURL = WorldDic if info { fprintf(stderr,"--Id-- default dictionary \"%v\"\n", dicName); } case "wnn": dicName = "WnnDic" dicURL = WnnDic case "sumomo": dicName = "SumomoDic" dicURL = SumomoDic case "sijimi": dicName = "SijimiDic" dicURL = SijimiDic case "jkl": dicName = "JKLJaDic" dicURL = JA_JKLDic } if debug { fprintf(stderr,"--Id-- %v URL=%v\n\n",dicName,dicURL); } dicv := strings.Split(dicURL,",") if debug { fprintf(stderr,"--Id-- %v encoded data...\n",dicName) fprintf(stderr,"Type: %v\n",dicv[0]) fprintf(stderr,"Body: %v\n",dicv[1]) fprintf(stderr,"\n") } body,_ := base64.StdEncoding.DecodeString(dicv[1]) dicBody = string(body) } if info { fmt.Printf("--Id-- %v %v\n",dicName,dicURL) fmt.Printf("%s\n",dicBody) } if debug { fprintf(stderr,"--Id-- dicName %v text...\n",dicName) fprintf(stderr,"%v\n",string(dicBody)) } entv := strings.Split(dicBody,"\n"); if info { fprintf(stderr,"--Id-- %v scan...\n",dicName); } var added int = 0 var dup int = 0 for i,v := range entv { var pat string var out string fmt.Sscanf(v,"%s %s",&pat,&out) if len(pat) <= 0 { }else{ if 0 <= isinDic(pat) { dup += 1 continue } romkana[dicents] = RomKana{dicName,pat,out,0} dicents += 1 added += 1 Romkan = append(Romkan,RomKana{dicName,pat,out,0}) if debug { fmt.Printf("[%3v]:[%2v]%-8v [%2v]%v\n", i,len(pat),pat,len(out),out) } } } if !silent { url := dicURL if strBegins(url,"data:") { url = "builtin" } fprintf(stderr,"--Id-- %v scan... %v added, %v dup. / %v total (%v)\n", dicName,added,dup,len(Romkan),url); } // should sort by pattern length for conclete match, for performance if debug { arg = "" // search pattern dump = true } } if cmd == DIC_COM_DUMP || dump { fprintf(stderr,"--Id-- %v dump... %v entries:\n",dicName,len(Romkan)); var match = 0 for i := 0; i < len(Romkan); i++ { dic := Romkan[i].dic pat := Romkan[i].pat out := Romkan[i].out if arg == "" || 0 <= strings.Index(pat,arg)||0 <= strings.Index(out,arg) { fmt.Printf("\\\\%v\t%v [%2v]%-8v [%2v]%v\n", i,dic,len(pat),pat,len(out),out) match += 1 } } fprintf(stderr,"--Id-- %v matched %v / %v entries:\n",arg,match,len(Romkan)); } } func loadDefaultDic(dic int){ if( 0 < len(Romkan) ){ return } //fprintf(stderr,"\r\n") xDic([]string{"dic",DIC_COM_LOAD}); var info = false if info { fprintf(stderr,"--Id-- Conguraturations!! WorldDic is now activated.\r\n") fprintf(stderr,"--Id-- enter \"dic\" command for help.\r\n") } } func readDic()(int){ /* var rk *os.File; var dic = "MyIME-dic.txt"; //rk = fopen("romkana.txt","r"); //rk = fopen("JK-JA-morse-dic.txt","r"); rk = fopen(dic,"r"); if( rk == NULL_FP ){ if( true ){ fprintf(stderr,"--%s-- Could not load %s\n",MyIMEVER,dic); } return -1; } if( true ){ var di int; var line = make(StrBuff,1024); var pat string var out string for di = 0; di < 1024; di++ { if( fgets(line,sizeof(line),rk) == NULLSP ){ break; } fmt.Sscanf(string(line[0:strlen(line)]),"%s %s",&pat,&out); //sscanf(line,"%s %[^\r\n]",&pat,&out); romkana[di].pat = pat; romkana[di].out = out; //fprintf(stderr,"--Dd- %-10s %s\n",pat,out) } dicents += di if( false ){ fprintf(stderr,"--%s-- loaded romkana.txt [%d]\n",MyIMEVER,di); for di = 0; di < dicents; di++ { fprintf(stderr, "%s %s\n",romkana[di].pat,romkana[di].out); } } } fclose(rk); //romkana[dicents].pat = "//ddump" //romkana[dicents].pat = "//ddump" // dump the dic. and clean the command input */ return 0; } func matchlen(stri string, pati string)(int){ if strBegins(stri,pati) { return len(pati) }else{ return 0 } } func convs(src string)(string){ var si int; var sx = len(src); var di int; var mi int; var dstb []byte for si = 0; si < sx; { // search max. match from the position if strBegins(src[si:],"%x/") { // %x/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 //fmt.Sscanf(src[si+3:si+3+ix],"%d",&iv) fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%x",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%d/") { // %d/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%d",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%t") { now := time.Now() if true { date := now.Format(time.Stamp) dstb = append(dstb,[]byte(date)...) si = si+3 } continue } var maxlen int = 0; var len int; mi = -1; for di = 0; di < dicents; di++ { len = matchlen(src[si:],romkana[di].pat); if( maxlen < len ){ maxlen = len; mi = di; } } if( 0 < maxlen ){ out := romkana[mi].out; dstb = append(dstb,[]byte(out)...); si += maxlen; }else{ dstb = append(dstb,src[si]) si += 1; } } return string(dstb) } func trans(src string)(int){ dst := convs(src); xfputss(dst,stderr); return 0; } //------------------------------------------------------------- LINEEDIT // "?" at the top of the line means searching history // should be compatilbe with Telnet const ( EV_MODE = 255 EV_IDLE = 254 EV_TIMEOUT = 253 GO_UP = 252 // k GO_DOWN = 251 // j GO_RIGHT = 250 // l GO_LEFT = 249 // h DEL_RIGHT = 248 // x GO_TOPL = 'A'-0x40 // 0 GO_ENDL = 'E'-0x40 // $ GO_TOPW = 239 // b GO_ENDW = 238 // e GO_NEXTW = 237 // w GO_FORWCH = 229 // f GO_PAIRCH = 228 // % GO_DEL = 219 // d HI_SRCH_FW = 209 // / HI_SRCH_BK = 208 // ? HI_SRCH_RFW = 207 // n HI_SRCH_RBK = 206 // N ) // should return number of octets ready to be read immediately //fprintf(stderr,"\n--Select(%v %v)\n",err,r.Bits[0]) var EventRecvFd = -1 // file descriptor var EventSendFd = -1 const EventFdOffset = 1000000 const NormalFdOffset = 100 /* 2020-1021 replaced poll() with channel/select func putKeyinEvent(event int, evarg int){ if true { if EventRecvFd < 0 { var pv = []int{-1,-1} // syscall.Pipe(pv) EventRecvFd = pv[0] EventSendFd = pv[1] //fmt.Printf("--De-- EventPipe created[%v,%v]\n",EventRecvFd,EventSendFd) } }else{ if EventRecvFd < 0 { // the document differs from this spec // https://golang.org/src/syscall/syscall_unix.go?s=8096:8158#L340 sv,err := syscall.Socketpair(syscall.AF_UNIX,syscall.SOCK_STREAM,0) EventRecvFd = sv[0] EventSendFd = sv[1] if err != nil { fmt.Printf("--De-- EventSock created[%v,%v](%v)\n", EventRecvFd,EventSendFd,err) } } } var buf = []byte{ byte(event)} n,err := syscall.Write(EventSendFd,buf) if err != nil { fmt.Printf("--De-- putEvent[%v](%3v)(%v %v)\n",EventSendFd,event,n,err) } } */ func ungets(str string){ for _,ch := range str { putKeyinEvent(int(ch),0) } } func (gsh*GshContext)xReplay(argv[]string){ hix := 0 tempo := 1.0 xtempo := 1.0 repeat := 1 for _,a := range argv { // tempo if strBegins(a,"x") { fmt.Sscanf(a[1:],"%f",&xtempo) tempo = 1 / xtempo //fprintf(stderr,"--Dr-- tempo=[%v]%v\n",a[2:],tempo); }else if strBegins(a,"r") { // repeat fmt.Sscanf(a[1:],"%v",&repeat) }else if strBegins(a,"!") { fmt.Sscanf(a[1:],"%d",&hix) }else{ fmt.Sscanf(a,"%d",&hix) } } if hix == 0 || len(argv) <= 1 { hix = len(gsh.CommandHistory)-1 } fmt.Printf("--Ir-- Replay(!%v x%v r%v)\n",hix,xtempo,repeat) //dumpEvents(hix) //gsh.xScanReplay(hix,false,repeat,tempo,argv) go gsh.xScanReplay(hix,true,repeat,tempo,argv) runtime.Gosched(); // wait xScanReplay is launched //fmt.Printf("--Ir-- Replay set\n"); } // syscall.Select // 2020-0827 GShell-0.2.3 /* func FpollIn1(fp *os.File,usec int)(uintptr){ nfd := 1 rdv := syscall.FdSet {} fd1 := fp.Fd() bank1 := fd1/32 mask1 := int32(1 << fd1) rdv.Bits[bank1] = mask1 fd2 := -1 bank2 := -1 var mask2 int32 = 0 if 0 <= EventRecvFd { fd2 = EventRecvFd nfd = fd2 + 1 bank2 = fd2/32 mask2 = int32(1 << fd2) rdv.Bits[bank2] |= mask2 //fmt.Printf("--De-- EventPoll mask added [%d][%v][%v]\n",fd2,bank2,mask2) } tout := syscall.NsecToTimeval(int64(usec*1000)) //n,err := syscall.Select(nfd,&rdv,nil,nil,&tout) // spec. mismatch err := syscall.Select(nfd,&rdv,nil,nil,&tout) if err != nil { //fmt.Printf("--De-- select() err(%v)\n",err) } if err == nil { if 0 <= fd2 && (rdv.Bits[bank2] & mask2) != 0 { if false { fmt.Printf("--De-- got Event\n") } return uintptr(EventFdOffset + fd2) }else if (rdv.Bits[bank1] & mask1) != 0 { return uintptr(NormalFdOffset + fd1) }else{ return 1 } }else{ return 0 } } */ /* func fgetcTimeout1(fp *os.File,usec int)(int){ READ1: //readyFd := FpollIn1(fp,usec) readyFd := CFpollIn1(fp,usec) if readyFd < 100 { return EV_TIMEOUT } var buf [1]byte if EventFdOffset <= readyFd { fd := int(readyFd-EventFdOffset) _,err := syscall.Read(fd,buf[0:1]) if( err != nil ){ return EOF; }else{ if buf[0] == EV_MODE { recvKeyEvent(fd) goto READ1 } return int(buf[0]) } } _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } */ func visibleChar(ch int)(string){ switch { case '!' <= ch && ch <= '~': return string(ch) } switch ch { case ' ': return "\\s" case '\n': return "\\n" case '\r': return "\\r" case '\t': return "\\t" } switch ch { case 0x00: return "NUL" case 0x07: return "BEL" case 0x08: return "BS" case 0x0E: return "SO" case 0x0F: return "SI" case 0x1B: return "ESC" case 0x7F: return "DEL" } switch ch { case EV_IDLE: return fmt.Sprintf("IDLE") case EV_MODE: return fmt.Sprintf("MODE") } return fmt.Sprintf("%X",ch) } /* func recvKeyEvent(fd int){ var buf = make([]byte,1) _,_ = syscall.Read(fd,buf[0:1]) if( buf[0] != 0 ){ romkanmode = true }else{ romkanmode = false } } */ func (gsh*GshContext)xScanReplay(hix int,replay bool,repeat int,tempo float64,argv[]string){ var Start time.Time var events = []Event{} for _,e := range Events { if hix == 0 || e.CmdIndex == hix { events = append(events,e) } } elen := len(events) if 0 < elen { if events[elen-1].event == EV_IDLE { events = events[0:elen-1] } } for r := 0; r < repeat; r++ { for i,e := range events { nano := e.when.Nanosecond() micro := nano / 1000 if Start.Second() == 0 { Start = time.Now() } diff := time.Now().Sub(Start) if replay { if e.event != EV_IDLE { //fmt.Printf("--replay %v / %v event=%X\n",i,len(events),e.event); putKeyinEvent(e.event,0) if e.event == EV_MODE { // event with arg putKeyinEvent(int(e.evarg),0) } }else{ //fmt.Printf("--replay %v / %v idle=%X\n",i,len(events),e.event); } }else{ fmt.Printf("%7.3fms #%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n", float64(diff)/1000000.0, i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event), float64(e.evarg)/1000000.0) } if e.event == EV_IDLE { //fmt.Printf("--replay %v / %v delay\n",i,len(events)); d := time.Duration(float64(time.Duration(e.evarg)) * tempo) //nsleep(time.Duration(e.evarg)) nsleep(d) } } } } func dumpEvents(arg[]string){ hix := 0 if 1 < len(arg) { fmt.Sscanf(arg[1],"%d",&hix) } for i,e := range Events { nano := e.when.Nanosecond() micro := nano / 1000 //if e.event != EV_TIMEOUT { if hix == 0 || e.CmdIndex == hix { fmt.Printf("#%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n",i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event),float64(e.evarg)/1000000.0) } //} } } /* func fgetcTimeout(fp *os.File,usec int)(int){ ch := fgetcTimeout1(fp,usec) if ch != EV_TIMEOUT { now := time.Now() if 0 < len(Events) { last := Events[len(Events)-1] dura := int64(now.Sub(last.when)) Events = append(Events,Event{last.when,EV_IDLE,dura,last.CmdIndex}) } Events = append(Events,Event{time.Now(),ch,0,CmdIndex}) } return ch } */ // 2020-1021 replaced poll() with channel/select var Kbd = make(chan int); var Kbinit = false; var evQ = make(chan int); /* func keyInput(kbd chan int, fp *os.File){ for { ch := C.getc(C.stdin); if( ch == C.EOF ){ break; } kbd <- int(ch); } } */ // https://godoc.org/golang.org/x/crypto/ssh/terminal // https://stackoverflow.com/questions/14094190/function-similar-to-getchar func keyInput(kbd chan int, tty *os.File){ tmode := C.setTermRaw(); defer func(){ C.setTermMode(tmode); }(); if( !OnWindows ){ system("/bin/stty -echo -icanon"); defer func(){ system("/bin/stty echo sane"); }(); } for { var rbuf []byte = make([]byte,1); if( OnWindows ){ C.setTermRaw(); } _,rerr := tty.Read(rbuf); if( rerr != nil ){ break; } //fmt.Printf("++KBD[%X]\n",rbuf[0]); kbd <- int(rbuf[0]); } if( !OnWindows ){ system("/bin/stty echo sane"); } } func fgetcTimeout(fp *os.File,usec int)(int){ if( !Kbinit ){ Kbinit = true; go keyInput(Kbd,fp); } for { select { case <- time.After(time.Duration(usec*1000)): //fmt.Printf("--Timeout %v us\n",usec); return EV_TIMEOUT; case ch := <- Kbd: //fmt.Printf("--KBD[%X]\n",ch); // record a Keyin(ch) Event { now := time.Now() if 0 < len(Events) { last := Events[len(Events)-1] dura := int64(now.Sub(last.when)) Events = append(Events,Event{last.when,EV_IDLE,dura,last.CmdIndex}) } Events = append(Events,Event{time.Now(),ch,0,CmdIndex}) } return ch; case ch := <- evQ: if( ch == EV_MODE ){ recvKeyEvent() }else{ return ch; } } } } func putKeyinEvent(event int, evarg int){ evQ <- event; } func recvKeyEvent(){ ch := <- evQ; if( ch != 0 ){ romkanmode = true }else{ romkanmode = false } } var AtConsoleLineTop = true var TtyMaxCol = 72 // to be obtained by ioctl? var EscTimeout = (100*1000) var ( MODE_VicMode bool // vi compatible command mode MODE_ShowMode bool romkanmode bool // shown translation mode, the mode to be retained MODE_Recursive bool // recursive translation MODE_CapsLock bool // software CapsLock MODE_LowerLock bool // force lower-case character lock MODE_ViInsert int // visible insert mode, should be like "I" icon in X Window MODE_ViTrace bool // output newline before translation ) type IInput struct { lno int lastlno int pch []int // input queue prompt string line string right string inJmode bool pinJmode bool waitingMeta string // waiting meta character LastCmd string } func (iin*IInput)Getc(timeoutUs int)(int){ ch1 := EOF ch2 := EOF ch3 := EOF if( 0 < len(iin.pch) ){ // deQ ch1 = iin.pch[0] iin.pch = iin.pch[1:] }else{ ch1 = fgetcTimeout(stdin,timeoutUs); } if( ch1 == 033 ){ /// escape sequence ch2 = fgetcTimeout(stdin,EscTimeout); if( ch2 == EV_TIMEOUT ){ }else{ ch3 = fgetcTimeout(stdin,EscTimeout); if( ch3 == EV_TIMEOUT ){ iin.pch = append(iin.pch,ch2) // enQ }else{ switch( ch2 ){ default: iin.pch = append(iin.pch,ch2) // enQ iin.pch = append(iin.pch,ch3) // enQ case '[': switch( ch3 ){ case 'A': ch1 = GO_UP; // ^ case 'B': ch1 = GO_DOWN; // v case 'C': ch1 = GO_RIGHT; // > case 'D': ch1 = GO_LEFT; // < case '3': ch4 := fgetcTimeout(stdin,EscTimeout); if( ch4 == '~' ){ //fprintf(stderr,"x[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); ch1 = DEL_RIGHT } } case '\\': //ch4 := fgetcTimeout(stdin,EscTimeout); //fprintf(stderr,"y[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); switch( ch3 ){ case '~': ch1 = DEL_RIGHT } } } } } return ch1 } func (inn*IInput)clearline(){ var i int fprintf(stderr,"\r"); // should be ANSI ESC sequence for i = 0; i < TtyMaxCol; i++ { // to the max. position in this input action fputc(' ',os.Stderr); } fprintf(stderr,"\r"); } func (iin*IInput)Redraw(){ redraw(iin,iin.lno,iin.line,iin.right) } func redraw(iin *IInput,lno int,line string,right string){ inMeta := false showMode := "" showMeta := "" // visible Meta mode on the cursor position showLino := fmt.Sprintf("!%d! ",lno) InsertMark := "" // in visible insert mode if MODE_VicMode { }else if 0 < len(iin.right) { InsertMark = " " } if( 0 < len(iin.waitingMeta) ){ inMeta = true if iin.waitingMeta[0] != 033 { showMeta = iin.waitingMeta } } if( romkanmode ){ //romkanmark = " *"; }else{ //romkanmark = ""; } if MODE_ShowMode { romkan := "--" inmeta := "-" inveri := "" if MODE_CapsLock { inmeta = "A" } if MODE_LowerLock { inmeta = "a" } if MODE_ViTrace { inveri = "v" } if MODE_VicMode { inveri = ":" } if romkanmode { romkan = "\343\201\202" if MODE_CapsLock { inmeta = "R" }else{ inmeta = "r" } } if inMeta { inmeta = "\\" } showMode = "["+romkan+inmeta+inveri+"]"; } Pre := "\r" + showMode + showLino Output := "" Left := "" Right := "" if romkanmode { Left = convs(line) Right = InsertMark+convs(right) }else{ Left = line Right = InsertMark+right } Output = Pre+Left if MODE_ViTrace { Output += iin.LastCmd } Output += showMeta+Right for len(Output) < TtyMaxCol { // to the max. position that may be dirty Output += " " // should be ANSI ESC sequence // not necessary just after newline } Output += Pre+Left+showMeta // to set the cursor to the current input position fprintf(stderr,"%s",Output) if MODE_ViTrace { if 0 < len(iin.LastCmd) { iin.LastCmd = "" fprintf(stderr,"\r\n") } } AtConsoleLineTop = false //fmt.Printf("(Redraw(%v)(%v))\n",len(line),len(right)); } // utf8 func delHeadChar(str string)(rline string,head string){ _,clen := utf8.DecodeRune([]byte(str)) head = string(str[0:clen]) return str[clen:],head } func delTailChar(str string)(rline string, last string){ var i = 0 var clen = 0 for { _,siz := utf8.DecodeRune([]byte(str)[i:]) if siz <= 0 { break } clen = siz i += siz } last = str[len(str)-clen:] return str[0:len(str)-clen],last } // 3> for output and history // 4> for keylog? // Command Line Editor func xgetline(lno int, prevline string, gsh*GshContext)(string){ var iin IInput iin.lastlno = lno iin.lno = lno CmdIndex = len(gsh.CommandHistory) if( isatty(0) == 0 ){ if( sfgets(&iin.line,LINESIZE,stdin) == NULL ){ iin.line = "exit\n"; }else{ } return iin.line } if( true ){ //var pts string; //pts = ptsname(0); //pts = ttyname(0); //fprintf(stderr,"--pts[0] = %s\n",pts?pts:"?"); } if( false ){ fprintf(stderr,"! "); fflush(stderr); sfgets(&iin.line,LINESIZE,stdin); return iin.line } if( !OnWindows ){ system("/bin/stty -echo -icanon"); } xline := iin.xgetline1(prevline,gsh) if( !OnWindows ){system("/bin/stty echo sane"); } return xline } func (iin*IInput)Translate(cmdch int){ romkanmode = !romkanmode; if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); }else if( cmdch == 'J' ){ fprintf(stderr,"J\r\n"); iin.inJmode = true } iin.Redraw(); loadDefaultDic(cmdch); iin.Redraw(); } func (iin*IInput)Replace(cmdch int){ iin.LastCmd = fmt.Sprintf("\\%v",string(cmdch)) iin.Redraw(); loadDefaultDic(cmdch); dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" if( cmdch == 'I' ){ fprintf(stderr,"I\r\n"); iin.inJmode = true } iin.Redraw(); } // aa 12 a1a1 func isAlpha(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } return false } func isAlnum(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } if '0' <= ch && ch <= '9' { return true } return false } // 0.2.8 2020-0901 created // DecodeRuneInString func (iin*IInput)GotoTOPW(){ str := iin.line i := len(str) if i <= 0 { return } //i0 := i i -= 1 lastSize := 0 var lastRune rune var found = -1 for 0 < i { // skip preamble spaces lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if !isAlnum(lastRune) { // character, type, or string to be searched i -= lastSize continue } break } for 0 < i { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { continue } // not the character top if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i -= lastSize } if found < 0 && i == 0 { found = 0 } if 0 <= found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word i += lastSize } iin.right = str[i:] + iin.right if 0 < i { iin.line = str[0:i] }else{ iin.line = "" } } //fmt.Printf("\n(%d,%d,%d)[%s][%s]\n",i0,i,found,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoENDW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var lastW = 0 i := 0 inWord := false lastRune,lastSize = utf8.DecodeRuneInString(str[0:]) if isAlnum(lastRune) { r,z := utf8.DecodeRuneInString(str[lastSize:]) if 0 < z && isAlnum(r) { inWord = true } } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i // the last alnum if in alnum word i += lastSize } if inWord { goto DISP } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if isAlnum(lastRune) { // character, type, or string to be searched break } i += lastSize } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i i += lastSize } DISP: if 0 < lastW { iin.line = iin.line + str[0:lastW] iin.right = str[lastW:] } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoNEXTW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var found = -1 i := 1 for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i += lastSize } if 0 < found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word found += lastSize } iin.line = iin.line + str[0:found] if 0 < found { iin.right = str[found:] }else{ iin.right = "" } } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0902 created func (iin*IInput)GotoPAIRCH(){ str := iin.right if len(str) <= 0 { return } lastRune,lastSize := utf8.DecodeRuneInString(str[0:]) if lastSize <= 0 { return } forw := false back := false pair := "" switch string(lastRune){ case "{": pair = "}"; forw = true case "}": pair = "{"; back = true case "(": pair = ")"; forw = true case ")": pair = "("; back = true case "[": pair = "]"; forw = true case "]": pair = "["; back = true case "<": pair = ">"; forw = true case ">": pair = "<"; back = true case "\"": pair = "\""; // context depednet, can be f" or back-double quote case "'": pair = "'"; // context depednet, can be f' or back-quote // case Japanese Kakkos } if forw { iin.SearchForward(pair) } if back { iin.SearchBackward(pair) } } // 0.2.8 2020-0902 created func (iin*IInput)SearchForward(pat string)(bool){ right := iin.right found := -1 i := 0 if strBegins(right,pat) { _,z := utf8.DecodeRuneInString(right[i:]) if 0 < z { i += z } } for i < len(right) { if strBegins(right[i:],pat) { found = i break } _,z := utf8.DecodeRuneInString(right[i:]) if z <= 0 { break } i += z } if 0 <= found { iin.line = iin.line + right[0:found] iin.right = iin.right[found:] return true }else{ return false } } // 0.2.8 2020-0902 created func (iin*IInput)SearchBackward(pat string)(bool){ line := iin.line found := -1 i := len(line)-1 for i = i; 0 <= i; i-- { _,z := utf8.DecodeRuneInString(line[i:]) if z <= 0 { continue } //fprintf(stderr,"-- %v %v\n",pat,line[i:]) if strBegins(line[i:],pat) { found = i break } } //fprintf(stderr,"--%d\n",found) if 0 <= found { iin.right = line[found:] + iin.right iin.line = line[0:found] return true }else{ return false } } // 0.2.8 2020-0902 created // search from top, end, or current position func (gsh*GshContext)SearchHistory(pat string, forw bool)(bool,string){ if forw { for _,v := range gsh.CommandHistory { if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } }else{ hlen := len(gsh.CommandHistory) for i := hlen-1; 0 < i ; i-- { v := gsh.CommandHistory[i] if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } } //fprintf(stderr,"\n--De-- not-found(%v)\n",pat) return false,"(Not Found in History)" } // 0.2.8 2020-0902 created func (iin*IInput)GotoFORWSTR(pat string,gsh*GshContext){ found := false if 0 < len(iin.right) { found = iin.SearchForward(pat) } if !found { found,line := gsh.SearchHistory(pat,true) if found { iin.line = line iin.right = "" } } } func (iin*IInput)GotoBACKSTR(pat string, gsh*GshContext){ found := false if 0 < len(iin.line) { found = iin.SearchBackward(pat) } if !found { found,line := gsh.SearchHistory(pat,false) if found { iin.line = line iin.right = "" } } } func (iin*IInput)getstring1(prompt string)(string){ // should be editable iin.clearline(); fprintf(stderr,"\r%v",prompt) str := "" for { ch := iin.Getc(10*1000*1000) if ch == '\n' || ch == '\r' { break } sch := string(ch) str += sch fprintf(stderr,"%s",sch) } return str } // search pattern must be an array and selectable with ^N/^P var SearchPat = "" var SearchForw = true func (iin*IInput)xgetline1(prevline string, gsh*GshContext)(string){ var ch int; MODE_ShowMode = false MODE_VicMode = false iin.Redraw(); first := true for cix := 0; ; cix++ { iin.pinJmode = iin.inJmode iin.inJmode = false ch = iin.Getc(1000*1000) if ch != EV_TIMEOUT && first { first = false mode := 0 if romkanmode { mode = 1 } now := time.Now() Events = append(Events,Event{now,EV_MODE,int64(mode),CmdIndex}) } if ch == 033 { MODE_ShowMode = true MODE_VicMode = !MODE_VicMode iin.Redraw(); continue } if MODE_VicMode { switch ch { case '0': ch = GO_TOPL case '$': ch = GO_ENDL case 'b': ch = GO_TOPW case 'e': ch = GO_ENDW case 'w': ch = GO_NEXTW case '%': ch = GO_PAIRCH case 'j': ch = GO_DOWN case 'k': ch = GO_UP case 'h': ch = GO_LEFT case 'l': ch = GO_RIGHT case 'x': ch = DEL_RIGHT case 'a': MODE_VicMode = !MODE_VicMode ch = GO_RIGHT case 'i': MODE_VicMode = !MODE_VicMode iin.Redraw(); continue case '~': right,head := delHeadChar(iin.right) if len([]byte(head)) == 1 { ch = int(head[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.right = string(ch) + right } iin.Redraw(); continue case 'f': // GO_FORWCH iin.Redraw(); ch = iin.Getc(3*1000*1000) if ch == EV_TIMEOUT { iin.Redraw(); continue } SearchPat = string(ch) SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '/': SearchPat = iin.getstring1("/") // should be editable SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '?': SearchPat = iin.getstring1("?") // should be editable SearchForw = false iin.GotoBACKSTR(SearchPat,gsh) iin.Redraw(); continue case 'n': if SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue case 'N': if !SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue } } switch ch { case GO_TOPW: iin.GotoTOPW() iin.Redraw(); continue case GO_ENDW: iin.GotoENDW() iin.Redraw(); continue case GO_NEXTW: // to next space then iin.GotoNEXTW() iin.Redraw(); continue case GO_PAIRCH: iin.GotoPAIRCH() iin.Redraw(); continue } //fprintf(stderr,"A[%02X]\n",ch); if( ch == '\\' || ch == 033 ){ MODE_ShowMode = true metach := ch iin.waitingMeta = string(ch) iin.Redraw(); // set cursor //fprintf(stderr,"???\b\b\b") ch = fgetcTimeout(stdin,2000*1000) // reset cursor iin.waitingMeta = "" cmdch := ch if( ch == EV_TIMEOUT ){ if metach == 033 { continue } ch = metach }else /* if( ch == 'm' || ch == 'M' ){ mch := fgetcTimeout(stdin,1000*1000) if mch == 'r' { romkanmode = true }else{ romkanmode = false } continue }else */ if( ch == 'k' || ch == 'K' ){ MODE_Recursive = !MODE_Recursive iin.Translate(cmdch); continue }else if( ch == 'j' || ch == 'J' ){ iin.Translate(cmdch); continue }else if( ch == 'i' || ch == 'I' ){ iin.Replace(cmdch); continue }else if( ch == 'l' || ch == 'L' ){ MODE_LowerLock = !MODE_LowerLock MODE_CapsLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'u' || ch == 'U' ){ MODE_CapsLock = !MODE_CapsLock MODE_LowerLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'v' || ch == 'V' ){ MODE_ViTrace = !MODE_ViTrace if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'c' || ch == 'C' ){ if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) if len([]byte(tail)) == 1 { ch = int(tail[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.line = xline + string(ch) } } if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else{ iin.pch = append(iin.pch,ch) // push ch = '\\' } } switch( ch ){ case 'P'-0x40: ch = GO_UP case 'N'-0x40: ch = GO_DOWN case 'B'-0x40: ch = GO_LEFT case 'F'-0x40: ch = GO_RIGHT } //fprintf(stderr,"B[%02X]\n",ch); switch( ch ){ case 0: continue; case '\t': iin.Replace('j'); continue case 'X'-0x40: iin.Replace('j'); continue case EV_TIMEOUT: iin.Redraw(); if iin.pinJmode { fprintf(stderr,"\\J\r\n") iin.inJmode = true } continue case GO_UP: if iin.lno == 1 { continue } cmd,ok := gsh.cmdStringInHistory(iin.lno-1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno - 1 } iin.Redraw(); continue case GO_DOWN: cmd,ok := gsh.cmdStringInHistory(iin.lno+1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno + 1 }else{ iin.line = "" iin.right = "" if iin.lno == iin.lastlno-1 { iin.lno = iin.lno + 1 } } iin.Redraw(); continue case GO_LEFT: if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) iin.line = xline iin.right = tail + iin.right } iin.Redraw(); continue; case GO_RIGHT: if( 0 < len(iin.right) && iin.right[0] != 0 ){ xright,head := delHeadChar(iin.right) iin.right = xright iin.line += head } iin.Redraw(); continue; case EOF: goto EXIT; case 'R'-0x40: // replace dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" iin.Redraw(); continue; case 'T'-0x40: // just show the result readDic(); romkanmode = !romkanmode; iin.Redraw(); continue; case 'L'-0x40: iin.Redraw(); continue case 'K'-0x40: iin.right = "" iin.Redraw(); continue case 'E'-0x40: iin.line += iin.right iin.right = "" iin.Redraw(); continue case 'A'-0x40: iin.right = iin.line + iin.right iin.line = "" iin.Redraw(); continue case 'U'-0x40: iin.line = "" iin.right = "" iin.clearline(); iin.Redraw(); continue; case DEL_RIGHT: if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } continue; case 0x7F: // BS? not DEL if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } /* else if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } */ continue; case 'H'-0x40: if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } continue; } if( OnWindows && ch == '\n' ){ continue; } if( ch == '\n' || ch == '\r' ){ iin.line += iin.right; iin.right = "" iin.Redraw(); //fputc(ch,stderr); fprintf(stderr,"\r\n"); // NL on Unix, CR on Windows AtConsoleLineTop = true break; } if MODE_CapsLock { if 'a' <= ch && ch <= 'z' { ch = ch+'A'-'a' } } if MODE_LowerLock { if 'A' <= ch && ch <= 'Z' { ch = ch+'a'-'A' } } iin.line += string(ch); iin.Redraw(); } EXIT: return iin.line + iin.right; } func getline_main(){ line := xgetline(0,"",nil) fprintf(stderr,"%s\n",line); /* dp = strpbrk(line,"\r\n"); if( dp != NULL ){ *dp = 0; } if( 0 ){ fprintf(stderr,"\n(%d)\n",int(strlen(line))); } if( lseek(3,0,0) == 0 ){ if( romkanmode ){ var buf [8*1024]byte; convs(line,buff); strcpy(line,buff); } write(3,line,strlen(line)); ftruncate(3,lseek(3,0,SEEK_CUR)); //fprintf(stderr,"outsize=%d\n",(int)lseek(3,0,SEEK_END)); lseek(3,0,SEEK_SET); close(3); }else{ fprintf(stderr,"\r\ngotline: "); trans(line); //printf("%s\n",line); printf("\n"); } */ } //== end ========================================================= getline // // $USERHOME/.gsh/ // gsh-rc.txt, or gsh-configure.txt // gsh-history.txt // gsh-aliases.txt // should be conditional? // func (gshCtx *GshContext)gshSetupHomedir()(bool) { homedir,found := userHomeDir() if !found { fmt.Printf("--E-- You have no UserHomeDir\n") return true } gshhome := homedir + "/" + GSH_HOME _, err2 := os.Stat(gshhome) if err2 != nil { err3 := os.Mkdir(gshhome,0700) if err3 != nil { fmt.Printf("--E-- Could not Create %s (%s)\n", gshhome,err3) return true } fmt.Printf("--I-- Created %s\n",gshhome) } gshCtx.GshHomeDir = gshhome return false } func setupGshContext()(GshContext,bool){ //gshPA := syscall.ProcAttr { gshPA := os.ProcAttr { "", // the staring directory os.Environ(), // environ[] //[]uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, []*os.File{os.Stdin,os.Stdout,os.Stderr}, nil, // OS specific } cwd, _ := os.Getwd() gshCtx := GshContext { cwd, // StartDir "", // GetLine []GChdirHistory { {cwd,time.Now(),0} }, // ChdirHistory gshPA, []GCommandHistory{}, //something for invokation? GCommandHistory{}, // CmdCurrent false, []os.ProcessState{}, //[]int{}, aRusage{}, "", // GshHomeDir Ttyid(), false, false, []PluginInfo{}, []string{}, " ", "v", ValueStack{}, GServer{"",""}, // LastServer "", // RSERV cwd, // RWD CheckSum{}, } err := gshCtx.gshSetupHomedir() return gshCtx, err } func (gsh*GshContext)gshelllh(gline string)(bool){ ghist := gsh.CmdCurrent ghist.WorkDir,_ = os.Getwd() ghist.WorkDirX = len(gsh.ChdirHistory)-1 //fmt.Printf("--D--ChdirHistory(@%d)\n",len(gsh.ChdirHistory)) ghist.StartAt = time.Now() rusagev1 := Getrusagev() gsh.CmdCurrent.FoundFile = []string{} fin := gsh.tgshelll(gline) rusagev2 := Getrusagev() ghist.Rusagev = RusageSubv(rusagev2,rusagev1) ghist.EndAt = time.Now() ghist.CmdLine = gline ghist.FoundFile = gsh.CmdCurrent.FoundFile /* record it but not show in list by default if len(gline) == 0 { continue } if gline == "hi" || gline == "history" { // don't record it continue } */ gsh.CommandHistory = append(gsh.CommandHistory, ghist) return fin } // Main loop func script(gshCtxGiven *GshContext) (_ GshContext) { gshCtxBuf,err0 := setupGshContext() if err0 { return gshCtxBuf; } gshCtx := &gshCtxBuf //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) //resmap() /* if false { gsh_getlinev, with_exgetline := which("PATH",[]string{"which","gsh-getline","-s"}) if with_exgetline { gsh_getlinev[0] = toFullpath(gsh_getlinev[0]) gshCtx.GetLine = toFullpath(gsh_getlinev[0]) }else{ fmt.Printf("--W-- No gsh-getline found. Using internal getline.\n"); } } */ ghist0 := gshCtx.CmdCurrent // something special, or gshrc script, or permanent history gshCtx.CommandHistory = append(gshCtx.CommandHistory,ghist0) prevline := "" skipping := false for hix := len(gshCtx.CommandHistory); ; { gline := gshCtx.getline(hix,skipping,prevline) if skipping { if strings.Index(gline,"fi") == 0 { fmt.Printf("fi\n"); skipping = false; }else{ //fmt.Printf("%s\n",gline); } continue } if strings.Index(gline,"if") == 0 { //fmt.Printf("--D-- if start: %s\n",gline); skipping = true; continue } if false { os.Stdout.Write([]byte("gotline:")) os.Stdout.Write([]byte(gline)) os.Stdout.Write([]byte("\n")) } gline = strsubst(gshCtx,gline,true) if false { fmt.Printf("fmt.Printf %%v - %v\n",gline) fmt.Printf("fmt.Printf %%s - %s\n",gline) fmt.Printf("fmt.Printf %%x - %s\n",gline) fmt.Printf("fmt.Printf %%U - %s\n",gline) fmt.Printf("Stouut.Write -") os.Stdout.Write([]byte(gline)) fmt.Printf("\n") } /* // should be cared in substitution ? if 0 < len(gline) && gline[0] == '!' { xgline, set, err := searchHistory(gshCtx,gline) if err { continue } if set { // set the line in command line editor } gline = xgline } */ fin := gshCtx.gshelllh(gline) if fin { break; } prevline = gline; hix++; } return *gshCtx } func ftest(where, path string){ //fi,err := os.Stat(path); //fmt.Printf("-- %v os.Stat(%v)=(%v)%v\n",where,path,err,fi); } func main() { initGshEnv(); ftest("gsh-main","."); ftest("gsh-main","gsh.go"); ftest("gsh-main","gsh.exe"); ftest("gsh-main","gsh"); gshCtxBuf := GshContext{} gsh := &gshCtxBuf argv := os.Args if( isin("wss",argv) ){ gj_server(argv[1:]); return; } if( isin("wsc",argv) ){ gj_client(argv[1:]); return; } if 1 < len(argv) { if isin("version",argv){ gsh.showVersion(argv) return } if argv[1] == "gj" { if argv[2] == "listen" { go gj_server(argv[2:]); } if argv[2] == "server" { go gj_server(argv[2:]); } if argv[2] == "serve" { go gj_server(argv[2:]); } if argv[2] == "client" { go gj_client(argv[2:]); } if argv[2] == "join" { go gj_client(argv[2:]); } } comx := isinX("-c",argv) if 0 < comx { gshCtxBuf,err := setupGshContext() gsh := &gshCtxBuf if !err { gsh.gshellv(argv[comx+1:]) } return } } if 1 < len(argv) && isin("-s",argv) { }else{ gsh.showVersion(append(argv,[]string{"-l","-a"}...)) } script(nil) //gshCtx := script(nil) //gshelll(gshCtx,"time") } //
//
Considerations
// - inter gsh communication, possibly running in remote hosts -- to be remote shell // - merged histories of multiple parallel gsh sessions // - alias as a function or macro // - instant alias end environ export to the permanent > ~/.gsh/gsh-alias and gsh-environ // - retrieval PATH of files by its type // - gsh as an IME with completion using history and file names as dictionaies // - gsh a scheduler in precise time of within a millisecond // - all commands have its subucomand after "---" symbol // - filename expansion by "-find" command // - history of ext code and output of each commoand // - "script" output for each command by pty-tee or telnet-tee // - $BUILTIN command in PATH to show the priority // - "?" symbol in the command (not as in arguments) shows help request // - searching command with wild card like: which ssh-* // - longformat prompt after long idle time (should dismiss by BS) // - customizing by building plugin and dynamically linking it // - generating syntactic element like "if" by macro expansion (like CPP) >> alias // - "!" symbol should be used for negation, don't wast it just for job control // - don't put too long output to tty, record it into GSH_HOME/session-id/comand-id.log // - making canonical form of command at the start adding quatation or white spaces // - name(a,b,c) ... use "(" and ")" to show both delimiter and realm // - name? or name! might be useful // - htar format - packing directory contents into a single html file using data scheme // - filepath substitution shold be done by each command, expecially in case of builtins // - @N substition for the history of working directory, and @spec for more generic ones // - @dir prefix to do the command at there, that means like (chdir @dir; command) // - GSH_PATH for plugins // - standard command output: list of data with name, size, resouce usage, modified time // - generic sort key option -nm name, -sz size, -ru rusage, -ts start-time, -tm mod-time // -wc word-count, grep match line count, ... // - standard command execution result: a list of string, -tm, -ts, -ru, -sz, ... // - -tailf-filename like tail -f filename, repeat close and open before read // - max. size and max. duration and timeout of (generated) data transfer // - auto. numbering, aliasing, IME completion of file name (especially rm of quieer name) // - IME "?" at the top of the command line means searching history // - IME %d/0x10000/ %x/ffff/ // - IME ESC to go the edit mode like in vi, and use :command as :s/x/y/g to edit history // - gsh in WebAssembly // - gsh as a HTTP server of online-manual //---END--- (^-^)//ITS more
// var WorldDic = // "data:text/dic;base64,"+ "Ly8gTXlJTUUvMC4wLjEg6L6e5pu4ICgyMDIwLTA4MTlhKQpzZWthaSDkuJbnlYwKa28g44GT"+ "Cm5uIOOCkwpuaSDjgasKY2hpIOOBoQp0aSDjgaEKaGEg44GvCnNlIOOBmwprYSDjgYsKaSDj"+ "gYQK"; // var WnnDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL2Rp"+ "Y3ZlcglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNXbm5ccy8vXHMyMDIwLTA4MzAK"+ "R1NoZWxsCUdTaGVsbArjgo/jgZ/jgZcJ56eBCndhdGFzaGkJ56eBCndhdGFzaQnnp4EK44Gq"+ "44G+44GICeWQjeWJjQpuYW1hZQnlkI3liY0K44Gq44GL44GuCeS4remHjgpuYWthbm8J5Lit"+ "6YeOCndhCeOCjwp0YQnjgZ8Kc2kJ44GXCnNoaQnjgZcKbm8J44GuCm5hCeOBqgptYQnjgb4K"+ "ZQnjgYgKaGEJ44GvCm5hCeOBqgprYQnjgYsKbm8J44GuCmRlCeOBpwpzdQnjgZkKZVxzCWVj"+ "aG8KZGljCWRpYwplY2hvCWVjaG8KcmVwbGF5CXJlcGxheQpyZXBlYXQJcmVwZWF0CmR0CWRh"+ "dGVccysnJVklbSVkLSVIOiVNOiVTJwp0aW9uCXRpb24KJXQJJXQJLy8gdG8gYmUgYW4gYWN0"+ "aW9uCjwvdGV4dGFyZWE+Cg==" // var SumomoDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTdW1vbW9ccy8vXHMyMDIwLTA4MzAK"+ "c3UJ44GZCm1vCeOCggpubwnjga4KdQnjgYYKY2hpCeOBoQp0aQnjgaEKdWNoaQnlhoUKdXRp"+ "CeWGhQpzdW1vbW8J44GZ44KC44KCCnN1bW9tb21vCeOBmeOCguOCguOCggptb21vCeahgwpt"+ "b21vbW8J5qGD44KCCiwsCeOAgQouLgnjgIIKPC90ZXh0YXJlYT4K" // var SijimiDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTaGlqaW1pXHMvL1xzMjAyMC0wODMw"+ "CnNpCeOBlwpzaGkJ44GXCmppCeOBmAptaQnjgb8KbmEJ44GqCmp1CeOBmOOChQp4eXUJ44KF"+ "CnUJ44GGCm5pCeOBqwprbwnjgZMKYnUJ44G2Cm5uCeOCkwpubwnjga4KY2hpCeOBoQp0aQnj"+ "gaEKa2EJ44GLCnJhCeOCiQosLAnjgIEKLi4J44CCCnhuYW5hCeS4gwp4anV1CeWNgQp4bmkJ"+ "5LqMCmtveAnlgIsKa29xCeWAiwprb3gJ5YCLCm5hbmFqdXVuaXgJNzIKbmFuYWp1dW5peHgJ"+ "77yX77ySCm5hbmFqdXVuaVgJ77yX77ySCuS4g+WNgeS6jHgJNzIKa29idW5uCeWAi+WIhgp0"+ "aWthcmFxCeOBoeOBi+OCiQp0aWthcmEJ5YqbCmNoaWthcmEJ5YqbCjwvdGV4dGFyZWE+Cg=" // var JA_JKLDic = // "data:text/dic;base64,"+ "Ly92ZXJsCU15SU1FamRpY2ptb3JzZWpKQWpKS0woMjAyMGowODE5KSheLV4pL1NhdG94SVRT"+ "CmtqamprbGtqa2tsa2psIOS4lueVjApqamtqamwJ44GCCmtqbAnjgYQKa2tqbAnjgYYKamtq"+ "amwJ44GICmtqa2trbAnjgYoKa2pra2wJ44GLCmpramtrbAnjgY0Ka2tramwJ44GPCmpramps"+ "CeOBkQpqampqbAnjgZMKamtqa2psCeOBlQpqamtqa2wJ44GXCmpqamtqbAnjgZkKa2pqamts"+ "CeOBmwpqamprbAnjgZ0KamtsCeOBnwpra2prbAnjgaEKa2pqa2wJ44GkCmtqa2pqbAnjgaYK"+ "a2tqa2tsCeOBqApramtsCeOBqgpqa2prbAnjgasKa2tra2wJ44GsCmpqa2psCeOBrQpra2pq"+ "bAnjga4Kamtra2wJ44GvCmpqa2tqbAnjgbIKampra2wJ44G1CmtsCeOBuApqa2tsCeOBuwpq"+ "a2tqbAnjgb4Ka2tqa2psCeOBvwpqbAnjgoAKamtra2psCeOCgQpqa2tqa2wJ44KCCmtqamwJ"+ "44KECmpra2pqbAnjgoYKampsCeOCiApra2tsCeOCiQpqamtsCeOCigpqa2pqa2wJ44KLCmpq"+ "amwJ44KMCmtqa2psCeOCjQpqa2psCeOCjwpramtramwJ44KQCmtqamtrbAnjgpEKa2pqamwJ"+ "44KSCmtqa2prbAnjgpMKa2pqa2psCeODvApra2wJ44KbCmtramprbAnjgpwKa2pramtqbAnj"+ "gIEK"; // // /*
References
*/ /*
Raw Source
Whole file
CSS part
JavaScript part
Builtin data part
*/ /*
(^_^)//{Hit j k l h}
CLOSE
*/ /*
GJ Console

*/ /*
Form Auto. Filling
Location: Username: Password: SessionId:
*/ /*
BlinderText // https://w3c.github.io/uievents/#event-type-keydown // // 2020-09-21 class BlinderText - textarea element not to be readable // // BlinderText attributes // bl_plainText - null // bl_hideChecksum - [false] // bl_showLength - [false] // bl_visible - [false] // data-bl_config - [] // - min. length // - max. length // - acceptable charset in generete text // function BlinderChecksum(text){ plain = text.bl_plainText; return strCRC32(plain,plain.length).toFixed(0); } function BlinderKeydown(ev){ pass = ev.target if( ev.code == 'Enter' ){ ev.preventDefault(); } ev.stopPropagation() } function BlinderKeyup1(ev){ blind = ev.target if( ev.code == 'Backspace'){ blind.bl_plainText = blind.bl_plainText.slice(0,blind.bl_plainText.length-1) }else if( and(ev.code == 'KeyV', ev.ctrlKey) ){ blind.bl_visible = !blind.bl_visible; }else if( and(ev.code == 'KeyL', ev.ctrlKey) ){ blind.bl_showLength = !blind.bl_showLength; }else if( and(ev.code == 'KeyU', ev.ctrlKey) ){ blind.bl_plainText = ""; }else if( and(ev.code == 'KeyR', ev.ctrlKey) ){ checksum = BlinderChecksum(blind); blind.bl_plainText = checksum; //.toString(32); }else if( ev.code == 'Enter' ){ ev.stopPropagation(); ev.preventDefault(); return; }else if( ev.key.length != 1 ){ console.log('KeyUp: '+ev.code+'/'+ev.key); return; }else{ blind.bl_plainText += ev.key; } leng = blind.bl_plainText.length; //console.log('KeyUp: '+ev.code+'/'+blind.bl_plainText); checksum = BlinderChecksum(blind) % 10; // show last one digit only visual = ''; if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '['; } if( !blind.bl_hideCheckSum ){ visual += '#'+checksum.toString(10); } if( blind.bl_showLength ){ visual += '/' + leng; } if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '] '; } if( blind.bl_visible ){ visual += blind.bl_plainText; }else{ visual += '*'.repeat(leng); } blind.value = visual; } function BlinderKeyup(ev){ BlinderKeyup1(ev); ev.stopPropagation(); } // https://w3c.github.io/uievents/#keyboardevent // https://w3c.github.io/uievents/#uievent // https://dom.spec.whatwg.org/#event function BlinderTextEvent(){ ev = event; blind = ev.target; console.log('Event '+ev.type+'@'+blind.nodeName+'#'+blind.id) if( ev.type == 'keyup' ){ BlinderKeyup(ev); }else if( ev.type == 'keydown' ){ BlinderKeydown(ev); }else{ console.log('thru-event '+ev.type+'@'+blind.nodeName+'#'+blind.id) } } //< textarea hidden id="BlinderTextClassDef" class="textField"" // onkeydown="BlinderTextEvent()" onkeyup="BlinderTextEvent()" // spellcheck="false">< /textarea> //< textarea hidden id="gj_pass1" // class="textField BlinderText" // placeholder="PassWord1" // onkeydown="BlinderTextEvent()" // onkeyup="BlinderTextEvent()" // spellcheck="false"< /textarea> function SetupBlinderText(parent,txa,phold){ if( txa == null ){ txa = document.createElement('textarea'); //txa.id = id; } txa.setAttribute('class','textField BlinderText'); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','BlinderTextEvent()'); txa.setAttribute('onkeyup','BlinderTextEvent()'); txa.setAttribute('spellcheck','false'); //txa.setAttribute('bl_plainText','false'); txa.bl_plainText = ''; //parent.appendChild(txa); } function DestroyBlinderText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); txa.bl_plainText = ''; } // // visible textarea like Username // function VisibleTextEvent(){ if( event.code == 'Enter' ){ if( event.target.NoEnter ){ event.preventDefault(); } } event.stopPropagation(); } function SetupVisibleText(parent,txa,phold){ if( false ){ txa.setAttribute('class','textField VisibleText'); }else{ newclass = txa.getAttribute('class'); if( and(newclass != null, newclass != '') ){ newclass += ' '; } newclass += 'VisibleText'; txa.setAttribute('class',newclass); } //console.log('SetupVisibleText class='+txa.class); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','VisibleTextEvent()'); txa.setAttribute('onkeyup', 'VisibleTextEvent()'); txa.setAttribute('spellcheck','false'); cols = txa.getAttribute('cols'); if( cols != null ){ txa.style.width = '580px'; //console.log('VisualText#'+txa.id+' cols='+cols) }else{ //console.log('VisualText#'+txa.id+' NO cols') } rows = txa.getAttribute('rows'); if( rows != null ){ txa.style.height = '30px'; txa.style.resize = 'both'; txa.NoEnter = false; }else{ txa.NoEnter = true; } } function DestroyVisibleText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); cols = txa.removeAttribute('cols'); }
*/ /* */ // //
Golang / JavaScript Link // // 2020-0920 created // WS // WS // INSTALL: go get golang.org/x/net/websocket // INSTALL: sudo {apt,yum} install git (if git is not instlled yet) // import "golang.org/x/net/websocket" const gshws_origin = "http://locahost:9999" const gshws_server = "localhost:9999" const gshws_port = 9999 const gshws_path = "gjlink1" const gshws_url = "ws://"+gshws_server+"/"+gshws_path const GSHWS_MSGSIZE = (8*1024) func fmtstring(fmts string, params ...interface{})(string){ return fmt.Sprintf(fmts,params...) } func GSHWS_MARK(what string)(string){ now := time.Now() us := fmtstring("%06d",now.Nanosecond() / 1000) mark := "" if( !AtConsoleLineTop ){ mark += "\n" AtConsoleLineTop = true } mark += "["+now.Format(time.Stamp)+"."+us+"] -GJ-" + what + ": " return mark } func gchk(what string,err error){ if( err != nil ){ panic(GSHWS_MARK(what)+err.Error()) } } func glog(what string, fmts string, params ...interface{}){ fmt.Print(GSHWS_MARK(what)) fmt.Printf(fmts+"\n",params...) } var WSV = []*websocket.Conn{} func jsend(argv []string){ if len(argv) <= 1 { fmt.Printf("--Ij %v [-m] command arguments\n",argv[0]) return } argv = argv[1:] if( len(WSV) == 0 ){ fmt.Printf("--Ej-- No link now\n") return } if( 1 < len(WSV) ){ fmt.Printf("--Ij-- multiple links (%v)\n",len(WSV)) } multicast := false // should be filtered with regexp if( 0 < len(argv) && argv[0] == "-m" ){ multicast = true argv = argv[1:] } args := strings.Join(argv," ") now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) msg := fmtstring("%v SEND gshell|* %v",tstamp,args) if( multicast ){ for i,ws := range WSV { wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } }else{ i := 0 ws := WSV[i] wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } } func ws_broadcast(msg string)(wn int,werr error){ for i,ws := range WSV { wn,werr = ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } return wn,werr; } func serv1(ws *websocket.Conn) { WSV = append(WSV,ws) //fmt.Print("\n") glog("CO","accepted connections[%v]",len(WSV)) //remoteAddr := ws.RemoteAddr //fmt.Printf("-- accepted %v\n",remoteAddr) //fmt.Printf("-- accepted %v\n",ws.Config()) //fmt.Printf("-- accepted %v\n",ws.Config().Header) //fmt.Printf("-- accepted %v // %v\n",ws,serv1) var reqb = make([]byte,GSHWS_MSGSIZE) for { rn, rerr := ws.Read(reqb) if( rerr != nil || rn < 0 ){ glog("SQ",fmtstring("(%v,%v)",rn,rerr)) break } req := string(reqb[0:rn]) glog("SQ",fmtstring("(%v) %v",rn,req)) margv := strings.Split(req," "); margv = margv[1:] if( 0 < len(margv) ){ if( margv[0] == "RESP" ){ // should forward to the destination continue; } } now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) res := fmtstring("%v "+"CAST"+" %v",tstamp,req) wn := 0; werr := error(nil); if( 0 < len(margv) && margv[0] == "BCAST" ){ wn, werr = ws_broadcast(res); }else{ wn, werr = ws.Write([]byte(res)) } gchk("SE",werr) glog("SR",fmtstring("(%v) %v",wn,string(res))) } glog("SF","WS response finish") wsv := []*websocket.Conn{} wsx := 0 for i,v := range WSV { if( v != ws ){ wsx = i wsv = append(wsv,v) } } WSV = wsv //glog("CO","closed %v",ws) glog("CO","closed connection [%v/%v]",wsx+1,len(WSV)+1) ws.Close() } // url ::= [scheme://]host[:port][/path] func decomp_URL(url string){ } func full_wsURL(){ } func gj_server(argv []string) { gjserv := gshws_url gjport := gshws_server gjpath := gshws_path gjscheme := "ws" //cmd := argv[0] argv = argv[1:] if( 1 <= len(argv) ){ serv := argv[0] if( 0 < strings.Index(serv,"://") ){ schemev := strings.Split(serv,"://") gjscheme = schemev[0] serv = schemev[1] } if( 0 < strings.Index(serv,"/") ){ pathv := strings.Split(serv,"/") serv = pathv[0] gjpath = pathv[1] } servv := strings.Split(serv,":") host := "localhost" port := 9999 if( servv[0] != "" ){ host = servv[0] } if( len(servv) == 2 ){ fmt.Sscanf(servv[1],"%d",&port) } //glog("LC","hostport=%v (%v : %v)",servv,host,port) gjport = fmt.Sprintf("%v:%v",host,port) gjserv = gjscheme + "://" + gjport + "/" + gjpath } glog("LS",fmtstring("listening at %v",gjserv)) http.Handle("/"+gjpath,websocket.Handler(serv1)) err := error(nil) if( gjscheme == "wss" ){ // https://golang.org/pkg/net/http/#ListenAndServeTLS //err = http.ListenAndServeTLS(gjport,nil) }else{ err = http.ListenAndServe(gjport,nil) } gchk("LE",err) } func gj_client(argv []string) { glog("CS",fmtstring("connecting to %v",gshws_url)) ws, err := websocket.Dial(gshws_url,"",gshws_origin) gchk("C",err) var resb = make([]byte, GSHWS_MSGSIZE) for qi := 0; qi < 3; qi++ { req := fmtstring("Hello, GShell! (%v)",qi) wn, werr := ws.Write([]byte(req)) glog("QM",fmtstring("(%v) %v",wn,req)) gchk("QE",werr) rn, rerr := ws.Read(resb) gchk("RE",rerr) glog("RM",fmtstring("(%v) %v",rn,string(resb))) } glog("CF","WS request finish") } // //
/* */ /* */ /*
Live HTML Snapshot
Edit Save Load Vers
*/ /*
Event sharing

Inter-window communicaiton

frame0 >>> frame1 and frame2
frame1 >>> frame0 and frame2
frame2 >>> frame0 and frame1




*/ /* // /*
Wirtual Desktop

CosmoScreen 0.0.8

ScopeControl command keys
g ... grid on/off
i ... zoom in
o ... zoom out
s ... save current scope
r ... restore saved scope

Monitor < x wall-paper: WD-WallPaler03.png

Desktop < x

Display < x < <

Content X Y shift+wheel for horizontal scroll

Scopexx < | >

Scopeyy < | >

Scopezz < | >

Display

Overflo "scroll" imprisons windows inside the display

CosmoScreen 0.0.8
00:00

WirtualSpace 1.

Reload
Reload
Reload
*/ //
// // /*
SBSidebar

SBSidebar

// 2020-1006 its-more.jp-blog-60000-style.css
*/ //
// // // /*
Affiliate

Supportive Affiliate

*/ //
// // // /*
Font Selector

Font Selection

Drawing Text on Canvas

Pixels Bold Italic

*/ //
// // // /*
Shading Canvas

Shading Canvas

Commands
Placement Mode
a ... apply (into absolute position)
j ... bring down (ArrowDown)
k ... bring up (ArrowUp)
h ... bring left (ArrowLeft)
l ... bring right (ArrowRight)
0 ... z-index = 0
+ ... z-index += 1
- ... z-index -= 1
r ... return to here (relative position)
c ... clear the log text
Note: the HTML text must be contenteditable to catch Key Event.
My Canvas.
*/ //
// // // /*
Character Map

Unicode Character Map

code 0x0000 - 0xFFFF / 16px / 3200 x 3200 px / zoom:0.25

*/ //
// // // /*
Collaborated Pointillism

Collaborated Pointillism

Share
XY1 XY1-remote XY2 XY2-remote

*/ //
// // // /*
StatCounter

StatCounter

hit counter (counter as image tag)
(counter by inline script)
*/ //
// // // /*
Work Template

Template of Work

*/ //
// // // /*
Original Source

Original Source of GShell

*/ //
// //
//
//723497399 361974 gsh (2020/09/23 02:27:30)

GShell 0.7.2 − go/chan/select入門

開発:ふぁぁ… ぁぁ…

基盤:寝過ぎて脳みそが溶けそうです。

社長:Wikiで吉田拓郎とか読みふけってしまいましたからね。

* * *

開発:ということで、方針を180度転換。CGoは必要でない限り使わない、syscallに関わる部分はパッケージを分けるという方向で行きたいと思います。

開発:その前にちょっとコードの掃除を… GShellの吹き出しの位置とか変ですし。あー、これを書いた時はまだ、addEventListener というのを知らなかったんですね。window.onresize とか書いてます。

社長:それでまとめていろんな事を書いてるんで整合性が取れなくなってたんですね。

開発:その後中身は移して空っぽに近かったんですが、吹き出しのとこだけ取り残されてました。

玄関:ぴんぽーん。

開発:こんな時間に何でしょう…

基盤:はいはい。がちゃ。あ、はい。どうもご苦労さまです。がちゃ。

基盤:ゆうパックでした。

開発:えー、こんな時間に。ブラックですねぇ。気の毒というか。

社長:まあ霞が関に比べれば。たぶん最近も変わってないんじゃないですかね。

基盤:そういううちはブラックじゃないんでしょうか。

社長:少し赤方偏移してるだけですよ。

開発:あーそれから、9/23に作ったLive HTML Snapshot ってセクションは、どんがらだけ作って details を開いても中身が入ってないように見えたんです。ですが、コードを読むと、ページの先頭にある Save / Load / Vers の事でした。

社長:一ヶ月前の事とか、全く忘れちゃいますね。

基盤:DOMダンプをロードした時に event listener を回復するところが未実装みたいですね。

開発:まあCSSOMのダンプとリカバリも必要ですしね。そのほかもなんか怪しいです。たぶん翌日にやってるフレーム間のイベント転送に興味が移ってしまったのでしょう。

基盤:9/27に WirtualDesktopを始めて、10月の最初の1週間それ関係ですね。

開発:あれはこれまでで一番長時間続けたワークだったと思います。

社長:今日はお掃除で終了ですかね。

開発:いや、CGo部分を切除するとこまではやりたいかなと。

* * *

社長:で、そもそもこのCGo部分はなんであるかということですが。

開発:もとは、8/27のGshell 0.2.3で、IMEの入力をリプレイ表示しようということで、入力を実際のキーボードから取るかリプレイ用のキューから取るかを選択するためでしたね。でもその時はsyscall.Selectで実装している。で、パッケージのドキュメントと実装が整合してないとかぶぅぶぅ書いています。

社長:だから、実装依存なビットマップを使うSelectじゃなくてPollのほうがいいと。

開発:実際この関係で、macOSでは動くけど Linuxでは動かないという状態だったと思います。で、9/6のGShell 0.3.3 で、CGo版の poll を使って実装して解決した。けれど、10/18のGShell 0.7.1で、Windows対応をやってみたところ、 MinGWでpollのサポートが不明ということになりました。

開発:そのへんは適当にやり過ごして、他のsyscall関係の関数をCGoに移し始めたのですが、まてよこれはやはり違うなと。

社長:CGoもsyscallも使わない解決法…

開発:要するにユーザプログラムでpollするより、Goルーチンで並列待ちするとか、chanelをswitchで選択するのが、Go的には正しい道なのでは無いかと思うんです。そっちのほうがプログラム構造が明示的になるし、たぶん性能もそちらの方が出るんじゃないかと。

* * *

開発:ふぅぅ… できました。

社長:けっこう手こずってましたね。

開発:いや、Goroutineの間の並列実行のスケジューリングの意味がわからなくて。

社長:普通のスレッドと同じでは無いんですか?

開発:いえ、極めて普通であることがわかりました。私の単なる思い違いです。これまでの実装では、コマンドのリプレイをタイミング付きでpipeに送る処理 go a => pipe を起動した後に、その入力を pipe => b という形で取り出すという形で逐次実行していたのですが、これを goroutine と chanel に置き換えた際に、 go a -> chan & chan -> b と起動した(つもりの)後に a の終了を待つようにしたら b が始まらない。なぜだと思ったら、b を起動してなかった。つまりもともと b は a が送り込む入力を消費する普通のコマンド行処理で実行するように作ってあったからです。ただ、a の終了を待つようにしたのは、go a -> chan の状態が渡りきらずに chan -> b が実行されてしまうように見えたからです。結局、実際 go a -> chan が動き始める前に戻って来てしまっていたという問題があって、ここに runtime.Gosched() を入れたら解決しました。

開発:これで syscall.Select/Poll だけでなく、syscall.Read/Write の使用も除外できましたので、一石二鳥でした。

社長:やはり言語がプログラムの並列構造を知ってて管理してくれるのはうれしいですね。

開発:それもありますし、型の規定されたデータをそのまま、OSの介在無しに送れるチャネルは記述も処理も軽い。受信側での逐次的処理と並列処理も、selectかswitchかで簡単に選べる。やはり魅力的だなと思いました。Goを使うのにこれを使わないのは、宝の持ち腐れです。

社長:過ちを改むるに遅すぎる事無しでしたね。

開発:では、本日の〆に、2ヶ月ぶりの Hello, 世界を。

基盤:あれ?リプレイする時に[あr]が出てないですね。

開発:ありゃま。明日直します。

-- 2020-1021 SatoxITS

/* GShell-0.7.2 by SatoxITS
GShell version 0.7.2 // 2020-10-21 // SatoxITS
*/ // // /*
Topbar

Topbar

*/ //
// // // /*
Indexer

Indexer

*/ //
// /*

GShell // a General purpose Shell built on the top of Golang

It is a shell for myself, by myself, of myself. --SatoxITS(^-^) prev.

Edit Save Load Vers 0 Fork Stop Unfold Digest Source
*/ /*
Statement

Fun to create a shell

For a programmer, it must be far easy and fun to create his own simple shell rightly fitting to his favor and necessities, than learning existing shells with complex full features that he never use. I, as one of programmers, am writing this tiny shell for my own real needs, totally from scratch, with fun.

For a programmer, it is fun to learn new computer languages. For long years before writing this software, I had been specialized to C and early HTML2 :-). Now writing this software, I'm learning Go language, HTML5, JavaScript and CSS on demand as a novice of these, with fun.

This single file "gsh.go", that is executable by Go, contains all of the code written in Go. Also it can be displayed as "gsh.go.html" by browsers. It is a standalone HTML file that works as the viewer of the code of itself, and as the "home page" of this software.

Because this HTML file is a Go program, you may run it as a real shell program on your computer. But you must be aware that this program is written under situation like above. Needless to say, there is no warranty for this program in any means.

Aug 2020, SatoxITS (sato@its-more.jp)
*/ /*
Features

Cross-browser communication

... to be written ...

Vi compatible command line editor

The command line of GShell can be edited with commands compatible with vi. As in vi, you can enter command mode by ESC key, then move around in the history by j k / ? n N, or within the current line by l h f w b 0 $ % or so.

*/ /*
Index
Documents Command summary Go lang part Package structures import struct Main functions str-expansion // macro processor finder // builtin find + du grep // builtin grep + wc + cksum + ... plugin // plugin commands system // external commands builtin // builtin commands network // socket handler remote-sh // remote shell redirect // StdIn/Out redireciton history // command history rusage // resouce usage encode // encode / decode IME // command line IME getline // line editor scanf // string decomposer interpreter // command interpreter main JavaScript part Source Builtin data CSS part Source References Internal External Whole parts Source Download Dump
*/ //
//Go Source
// gsh - Go lang based Shell // (c) 2020 ITS more Co., Ltd. // 2020-0807 created by SatoxITS (sato@its-more.jp) package main // gsh main // Imported packages // Packages import ( "fmt" // fmt "strings" // strings "strconv" // strconv "sort" // sort "time" // time "bufio" // bufio "io/ioutil" // ioutil "os" // os "syscall" // syscall "plugin" // plugin "net" // net "net/http" // http //"html" // html "path/filepath" // filepath "go/types" // types "go/token" // token "encoding/base64" // base64 "unicode/utf8" // utf8 //"gshdata" // gshell's logo and source code "hash/crc32" // crc32 "golang.org/x/net/websocket" "runtime" ) // #include // to be closed as HTML tag :-p import "C" /* // // 2020-0906 added, // // CGo // #include "poll.h" // // to be closed as HTML tag :-p // typedef struct { struct pollfd fdv[8]; } pollFdv; // int pollx(pollFdv *fdv, int nfds, int timeout){ // return poll(fdv->fdv,nfds,timeout); // } import "C" // 2020-1021 replaced poll() with channel/select // // 2020-0906 added, func CFpollIn1(fp*os.File, timeoutUs int)(ready uintptr){ var fdv = C.pollFdv{} var nfds = 1 var timeout = timeoutUs/1000 fdv.fdv[0].fd = C.int(fp.Fd()) fdv.fdv[0].events = C.POLLIN if( 0 < EventRecvFd ){ fdv.fdv[1].fd = C.int(EventRecvFd) fdv.fdv[1].events = C.POLLIN nfds += 1 } r := C.pollx(&fdv,C.int(nfds),C.int(timeout)) if( r <= 0 ){ return 0 } if (int(fdv.fdv[1].revents) & int(C.POLLIN)) != 0 { //fprintf(stderr,"--De-- got Event\n"); return uintptr(EventFdOffset + fdv.fdv[1].fd) } if (int(fdv.fdv[0].revents) & int(C.POLLIN)) != 0 { return uintptr(NormalFdOffset + fdv.fdv[0].fd) } return 0 } */ const ( NAME = "gsh" VERSION = "0.7.2" DATE = "2020-10-21" AUTHOR = "SatoxITS(^-^)//" ) var ( GSH_HOME = ".gsh" // under home directory GSH_PORT = 9999 MaxStreamSize = int64(128*1024*1024*1024) // 128GiB is too large? PROMPT = "> " LINESIZE = (8*1024) PATHSEP = ":" // should be ";" in Windows DIRSEP = "/" // canbe \ in Windows ) // -xX logging control // --A-- all // --I-- info. // --D-- debug // --T-- time and resource usage // --W-- warning // --E-- error // --F-- fatal error // --Xn- network // Structures type GCommandHistory struct { StartAt time.Time // command line execution started at EndAt time.Time // command line execution ended at ResCode int // exit code of (external command) CmdError error // error string OutData *os.File // output of the command FoundFile []string // output - result of ufind Rusagev [2]syscall.Rusage // Resource consumption, CPU time or so CmdId int // maybe with identified with arguments or impact // redireciton commands should not be the CmdId WorkDir string // working directory at start WorkDirX int // index in ChdirHistory CmdLine string // command line } type GChdirHistory struct { Dir string MovedAt time.Time CmdIndex int } type CmdMode struct { BackGround bool } type Event struct { when time.Time event int evarg int64 CmdIndex int } var CmdIndex int var Events []Event type PluginInfo struct { Spec *plugin.Plugin Addr plugin.Symbol Name string // maybe relative Path string // this is in Plugin but hidden } type GServer struct { host string port string } // Digest const ( // SumType SUM_ITEMS = 0x000001 // items count SUM_SIZE = 0x000002 // data length (simplly added) SUM_SIZEHASH = 0x000004 // data length (hashed sequence) SUM_DATEHASH = 0x000008 // date of data (hashed sequence) // also envelope attributes like time stamp can be a part of digest // hashed value of sizes or mod-date of files will be useful to detect changes SUM_WORDS = 0x000010 // word count is a kind of digest SUM_LINES = 0x000020 // line count is a kind of digest SUM_SUM64 = 0x000040 // simple add of bytes, useful for human too SUM_SUM32_BITS = 0x000100 // the number of true bits SUM_SUM32_2BYTE = 0x000200 // 16bits words SUM_SUM32_4BYTE = 0x000400 // 32bits words SUM_SUM32_8BYTE = 0x000800 // 64bits words SUM_SUM16_BSD = 0x001000 // UNIXsum -sum -bsd SUM_SUM16_SYSV = 0x002000 // UNIXsum -sum -sysv SUM_UNIXFILE = 0x004000 SUM_CRCIEEE = 0x008000 ) type CheckSum struct { Files int64 // the number of files (or data) Size int64 // content size Words int64 // word count Lines int64 // line count SumType int Sum64 uint64 Crc32Table crc32.Table Crc32Val uint32 Sum16 int Ctime time.Time Atime time.Time Mtime time.Time Start time.Time Done time.Time RusgAtStart [2]syscall.Rusage RusgAtEnd [2]syscall.Rusage } type ValueStack [][]string type GshContext struct { StartDir string // the current directory at the start GetLine string // gsh-getline command as a input line editor ChdirHistory []GChdirHistory // the 1st entry is wd at the start gshPA syscall.ProcAttr CommandHistory []GCommandHistory CmdCurrent GCommandHistory BackGround bool BackGroundJobs []int LastRusage syscall.Rusage GshHomeDir string TerminalId int CmdTrace bool // should be [map] CmdTime bool // should be [map] PluginFuncs []PluginInfo iValues []string iDelimiter string // field sepearater of print out iFormat string // default print format (of integer) iValStack ValueStack LastServer GServer RSERV string // [gsh://]host[:port] RWD string // remote (target, there) working directory lastCheckSum CheckSum } func nsleep(ns time.Duration){ time.Sleep(ns) } func usleep(ns time.Duration){ nsleep(ns*1000) } func msleep(ns time.Duration){ nsleep(ns*1000000) } func sleep(ns time.Duration){ nsleep(ns*1000000000) } func strBegins(str, pat string)(bool){ if len(pat) <= len(str){ yes := str[0:len(pat)] == pat //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,yes) return yes } //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,false) return false } func isin(what string, list []string) bool { for _, v := range list { if v == what { return true } } return false } func isinX(what string,list[]string)(int){ for i,v := range list { if v == what { return i } } return -1 } func env(opts []string) { env := os.Environ() if isin("-s", opts){ sort.Slice(env, func(i,j int) bool { return env[i] < env[j] }) } for _, v := range env { fmt.Printf("%v\n",v) } } // - rewriting should be context dependent // - should postpone until the real point of evaluation // - should rewrite only known notation of symobl func scanInt(str string)(val int,leng int){ leng = -1 for i,ch := range str { if '0' <= ch && ch <= '9' { leng = i+1 }else{ break } } if 0 < leng { ival,_ := strconv.Atoi(str[0:leng]) return ival,leng }else{ return 0,0 } } func substHistory(gshCtx *GshContext,str string,i int,rstr string)(leng int,rst string){ if len(str[i+1:]) == 0 { return 0,rstr } hi := 0 histlen := len(gshCtx.CommandHistory) if str[i+1] == '!' { hi = histlen - 1 leng = 1 }else{ hi,leng = scanInt(str[i+1:]) if leng == 0 { return 0,rstr } if hi < 0 { hi = histlen + hi } } if 0 <= hi && hi < histlen { var ext byte if 1 < len(str[i+leng:]) { ext = str[i+leng:][1] } //fmt.Printf("--D-- %v(%c)\n",str[i+leng:],str[i+leng]) if ext == 'f' { leng += 1 xlist := []string{} list := gshCtx.CommandHistory[hi].FoundFile for _,v := range list { //list[i] = escapeWhiteSP(v) xlist = append(xlist,escapeWhiteSP(v)) } //rstr += strings.Join(list," ") rstr += strings.Join(xlist," ") }else if ext == '@' || ext == 'd' { // !N@ .. workdir at the start of the command leng += 1 rstr += gshCtx.CommandHistory[hi].WorkDir }else{ rstr += gshCtx.CommandHistory[hi].CmdLine } }else{ leng = 0 } return leng,rstr } func escapeWhiteSP(str string)(string){ if len(str) == 0 { return "\\z" // empty, to be ignored } rstr := "" for _,ch := range str { switch ch { case '\\': rstr += "\\\\" case ' ': rstr += "\\s" case '\t': rstr += "\\t" case '\r': rstr += "\\r" case '\n': rstr += "\\n" default: rstr += string(ch) } } return rstr } func unescapeWhiteSP(str string)(string){ // strip original escapes rstr := "" for i := 0; i < len(str); i++ { ch := str[i] if ch == '\\' { if i+1 < len(str) { switch str[i+1] { case 'z': continue; } } } rstr += string(ch) } return rstr } func unescapeWhiteSPV(strv []string)([]string){ // strip original escapes ustrv := []string{} for _,v := range strv { ustrv = append(ustrv,unescapeWhiteSP(v)) } return ustrv } // str-expansion // - this should be a macro processor func strsubst(gshCtx *GshContext,str string,histonly bool) string { rbuff := []byte{} if false { //@@U Unicode should be cared as a character return str } //rstr := "" inEsc := 0 // escape characer mode for i := 0; i < len(str); i++ { //fmt.Printf("--D--Subst %v:%v\n",i,str[i:]) ch := str[i] if inEsc == 0 { if ch == '!' { //leng,xrstr := substHistory(gshCtx,str,i,rstr) leng,rs := substHistory(gshCtx,str,i,"") if 0 < leng { //_,rs := substHistory(gshCtx,str,i,"") rbuff = append(rbuff,[]byte(rs)...) i += leng //rstr = xrstr continue } } switch ch { case '\\': inEsc = '\\'; continue //case '%': inEsc = '%'; continue case '$': } } switch inEsc { case '\\': switch ch { case '\\': ch = '\\' case 's': ch = ' ' case 't': ch = '\t' case 'r': ch = '\r' case 'n': ch = '\n' case 'z': inEsc = 0; continue // empty, to be ignored } inEsc = 0 case '%': switch { case ch == '%': ch = '%' case ch == 'T': //rstr = rstr + time.Now().Format(time.Stamp) rs := time.Now().Format(time.Stamp) rbuff = append(rbuff,[]byte(rs)...) inEsc = 0 continue; default: // postpone the interpretation //rstr = rstr + "%" + string(ch) rbuff = append(rbuff,ch) inEsc = 0 continue; } inEsc = 0 } //rstr = rstr + string(ch) rbuff = append(rbuff,ch) } //fmt.Printf("--D--subst(%s)(%s)\n",str,string(rbuff)) return string(rbuff) //return rstr } func showFileInfo(path string, opts []string) { if isin("-l",opts) || isin("-ls",opts) { fi, err := os.Stat(path) if err != nil { fmt.Printf("---------- ((%v))",err) }else{ mod := fi.ModTime() date := mod.Format(time.Stamp) fmt.Printf("%v %8v %s ",fi.Mode(),fi.Size(),date) } } fmt.Printf("%s",path) if isin("-sp",opts) { fmt.Printf(" ") }else if ! isin("-n",opts) { fmt.Printf("\n") } } func userHomeDir()(string,bool){ /* homedir,_ = os.UserHomeDir() // not implemented in older Golang */ homedir,found := os.LookupEnv("HOME") //fmt.Printf("--I-- HOME=%v(%v)\n",homedir,found) if !found { return "/tmp",found } return homedir,found } func toFullpath(path string) (fullpath string) { if path[0] == '/' { return path } pathv := strings.Split(path,DIRSEP) switch { case pathv[0] == ".": pathv[0], _ = os.Getwd() case pathv[0] == "..": // all ones should be interpreted cwd, _ := os.Getwd() ppathv := strings.Split(cwd,DIRSEP) pathv[0] = strings.Join(ppathv,DIRSEP) case pathv[0] == "~": pathv[0],_ = userHomeDir() default: cwd, _ := os.Getwd() pathv[0] = cwd + DIRSEP + pathv[0] } return strings.Join(pathv,DIRSEP) } func IsRegFile(path string)(bool){ fi, err := os.Stat(path) if err == nil { fm := fi.Mode() return fm.IsRegular(); } return false } // Encode / Decode // Encoder func (gshCtx *GshContext)Enc(argv[]string){ file := os.Stdin buff := make([]byte,LINESIZE) li := 0 encoder := base64.NewEncoder(base64.StdEncoding,os.Stdout) for li = 0; ; li++ { count, err := file.Read(buff) if count <= 0 { break } if err != nil { break } encoder.Write(buff[0:count]) } encoder.Close() } func (gshCtx *GshContext)Dec(argv[]string){ decoder := base64.NewDecoder(base64.StdEncoding,os.Stdin) li := 0 buff := make([]byte,LINESIZE) for li = 0; ; li++ { count, err := decoder.Read(buff) if count <= 0 { break } if err != nil { break } os.Stdout.Write(buff[0:count]) } } // lnsp [N] [-crlf][-C \\] func (gshCtx *GshContext)SplitLine(argv[]string){ strRep := isin("-str",argv) // "..."+ reader := bufio.NewReaderSize(os.Stdin,64*1024) ni := 0 toi := 0 for ni = 0; ; ni++ { line, err := reader.ReadString('\n') if len(line) <= 0 { if err != nil { fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d (%v)\n",ni,toi,err) break } } off := 0 ilen := len(line) remlen := len(line) if strRep { os.Stdout.Write([]byte("\"")) } for oi := 0; 0 < remlen; oi++ { olen := remlen addnl := false if 72 < olen { olen = 72 addnl = true } fmt.Fprintf(os.Stderr,"--D-- write %d [%d.%d] %d %d/%d/%d\n", toi,ni,oi,off,olen,remlen,ilen) toi += 1 os.Stdout.Write([]byte(line[0:olen])) if addnl { if strRep { os.Stdout.Write([]byte("\"+\n\"")) }else{ //os.Stdout.Write([]byte("\r\n")) os.Stdout.Write([]byte("\\")) os.Stdout.Write([]byte("\n")) } } line = line[olen:] off += olen remlen -= olen } if strRep { os.Stdout.Write([]byte("\"\n")) } } fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d\n",ni,toi) } // CRC32 crc32 // 1 0000 0100 1100 0001 0001 1101 1011 0111 var CRC32UNIX uint32 = uint32(0x04C11DB7) // Unix cksum var CRC32IEEE uint32 = uint32(0xEDB88320) func byteCRC32add(crc uint32,str[]byte,len uint64)(uint32){ var oi uint64 for oi = 0; oi < len; oi++ { var oct = str[oi] for bi := 0; bi < 8; bi++ { //fprintf(stderr,"--CRC32 %d %X (%d.%d)\n",crc,oct,oi,bi) ovf1 := (crc & 0x80000000) != 0 ovf2 := (oct & 0x80) != 0 ovf := (ovf1 && !ovf2) || (!ovf1 && ovf2) oct <<= 1 crc <<= 1 if ovf { crc ^= CRC32UNIX } } } //fprintf(stderr,"--CRC32 return %d %d\n",crc,len) return crc; } func byteCRC32end(crc uint32, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len) li += 1 len >>= 8 if( len == 0 ){ break } } crc = byteCRC32add(crc,slen,uint64(li)) crc ^= 0xFFFFFFFF return crc } func strCRC32(str string,len uint64)(crc uint32){ crc = byteCRC32add(0,[]byte(str),len) crc = byteCRC32end(crc,len) //fprintf(stderr,"--CRC32 %d %d\n",crc,len) return crc } func CRC32Finish(crc uint32, table *crc32.Table, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len & 0xFF) li += 1 len >>= 8 if( len == 0 ){ break } } crc = crc32.Update(crc,table,slen) crc ^= 0xFFFFFFFF return crc } func (gsh*GshContext)xCksum(path string,argv[]string, sum*CheckSum)(int64){ if isin("-type/f",argv) && !IsRegFile(path){ return 0 } if isin("-type/d",argv) && IsRegFile(path){ return 0 } file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- cksum %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- cksum %v %v\n",path,argv) } bi := 0 var buff = make([]byte,32*1024) var total int64 = 0 var initTime = time.Time{} if sum.Start == initTime { sum.Start = time.Now() } for bi = 0; ; bi++ { count,err := file.Read(buff) if count <= 0 || err != nil { break } if (sum.SumType & SUM_SUM64) != 0 { s := sum.Sum64 for _,c := range buff[0:count] { s += uint64(c) } sum.Sum64 = s } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32add(sum.Crc32Val,buff,uint64(count)) } if (sum.SumType & SUM_CRCIEEE) != 0 { sum.Crc32Val = crc32.Update(sum.Crc32Val,&sum.Crc32Table,buff[0:count]) } // BSD checksum if (sum.SumType & SUM_SUM16_BSD) != 0 { s := sum.Sum16 for _,c := range buff[0:count] { s = (s >> 1) + ((s & 1) << 15) s += int(c) s &= 0xFFFF //fmt.Printf("BSDsum: %d[%d] %d\n",sum.Size+int64(i),i,s) } sum.Sum16 = s } if (sum.SumType & SUM_SUM16_SYSV) != 0 { for bj := 0; bj < count; bj++ { sum.Sum16 += int(buff[bj]) } } total += int64(count) } sum.Done = time.Now() sum.Files += 1 sum.Size += total if !isin("-s",argv) { fmt.Printf("%v ",total) } return 0 } // grep // "lines", "lin" or "lnp" for "(text) line processor" or "scanner" // a*,!ab,c, ... sequentioal combination of patterns // what "LINE" is should be definable // generic line-by-line processing // grep [-v] // cat -n -v // uniq [-c] // tail -f // sed s/x/y/ or awk // grep with line count like wc // rewrite contents if specified func (gsh*GshContext)xGrep(path string,rexpv[]string)(int){ file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- grep %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- grep %v %v\n",path,rexpv) } //reader := bufio.NewReaderSize(file,LINESIZE) reader := bufio.NewReaderSize(file,80) li := 0 found := 0 for li = 0; ; li++ { line, err := reader.ReadString('\n') if len(line) <= 0 { break } if 150 < len(line) { // maybe binary break; } if err != nil { break } if 0 <= strings.Index(string(line),rexpv[0]) { found += 1 fmt.Printf("%s:%d: %s",path,li,line) } } //fmt.Printf("total %d lines %s\n",li,path) //if( 0 < found ){ fmt.Printf("((found %d lines %s))\n",found,path); } return found } // Finder // finding files with it name and contents // file names are ORed // show the content with %x fmt list // ls -R // tar command by adding output type fileSum struct { Err int64 // access error or so Size int64 // content size DupSize int64 // content size from hard links Blocks int64 // number of blocks (of 512 bytes) DupBlocks int64 // Blocks pointed from hard links HLinks int64 // hard links Words int64 Lines int64 Files int64 Dirs int64 // the num. of directories SymLink int64 Flats int64 // the num. of flat files MaxDepth int64 MaxNamlen int64 // max. name length nextRepo time.Time } func showFusage(dir string,fusage *fileSum){ bsume := float64(((fusage.Blocks-fusage.DupBlocks)/2)*1024)/1000000.0 //bsumdup := float64((fusage.Blocks/2)*1024)/1000000.0 fmt.Printf("%v: %v files (%vd %vs %vh) %.6f MB (%.2f MBK)\n", dir, fusage.Files, fusage.Dirs, fusage.SymLink, fusage.HLinks, float64(fusage.Size)/1000000.0,bsume); } const ( S_IFMT = 0170000 S_IFCHR = 0020000 S_IFDIR = 0040000 S_IFREG = 0100000 S_IFLNK = 0120000 S_IFSOCK = 0140000 ) func cumFinfo(fsum *fileSum, path string, staterr error, fstat syscall.Stat_t, argv[]string,verb bool)(*fileSum){ now := time.Now() if time.Second <= now.Sub(fsum.nextRepo) { if !fsum.nextRepo.IsZero(){ tstmp := now.Format(time.Stamp) showFusage(tstmp,fsum) } fsum.nextRepo = now.Add(time.Second) } if staterr != nil { fsum.Err += 1 return fsum } fsum.Files += 1 if 1 < fstat.Nlink { // must count only once... // at least ignore ones in the same directory //if finfo.Mode().IsRegular() { if (fstat.Mode & S_IFMT) == S_IFREG { fsum.HLinks += 1 fsum.DupBlocks += int64(fstat.Blocks) //fmt.Printf("---Dup HardLink %v %s\n",fstat.Nlink,path) } } //fsum.Size += finfo.Size() fsum.Size += fstat.Size fsum.Blocks += int64(fstat.Blocks) //if verb { fmt.Printf("(%8dBlk) %s",fstat.Blocks/2,path) } if isin("-ls",argv){ //if verb { fmt.Printf("%4d %8d ",fstat.Blksize,fstat.Blocks) } // fmt.Printf("%d\t",fstat.Blocks/2) } //if finfo.IsDir() if (fstat.Mode & S_IFMT) == S_IFDIR { fsum.Dirs += 1 } //if (finfo.Mode() & os.ModeSymlink) != 0 if (fstat.Mode & S_IFMT) == S_IFLNK { //if verb { fmt.Printf("symlink(%v,%s)\n",fstat.Mode,finfo.Name()) } //{ fmt.Printf("symlink(%o,%s)\n",fstat.Mode,finfo.Name()) } fsum.SymLink += 1 } return fsum } func (gsh*GshContext)xxFindEntv(depth int,total *fileSum,dir string, dstat syscall.Stat_t, ei int, entv []string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) // sort entv /* if isin("-t",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].ModTime().Sub(filev[j].ModTime()) }) } */ /* if isin("-u",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].AccTime().Sub(filev[j].AccTime()) }) } if isin("-U",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].CreatTime().Sub(filev[j].CreatTime()) }) } */ /* if isin("-S",argv){ sort.Slice(filev, func(i,j int) bool { return filev[j].Size() < filev[i].Size() }) } */ for _,filename := range entv { for _,npat := range npatv { match := true if npat == "*" { match = true }else{ match, _ = filepath.Match(npat,filename) } path := dir + DIRSEP + filename if !match { continue } var fstat syscall.Stat_t staterr := syscall.Lstat(path,&fstat) if staterr != nil { if !isin("-w",argv){fmt.Printf("ufind: %v\n",staterr) } continue; } if isin("-du",argv) && (fstat.Mode & S_IFMT) == S_IFDIR { // should not show size of directory in "-du" mode ... }else if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { if isin("-du",argv) { fmt.Printf("%d\t",fstat.Blocks/2) } showFileInfo(path,argv) } if true { // && isin("-du",argv) total = cumFinfo(total,path,staterr,fstat,argv,false) } /* if isin("-wc",argv) { } */ if gsh.lastCheckSum.SumType != 0 { gsh.xCksum(path,argv,&gsh.lastCheckSum); } x := isinX("-grep",argv); // -grep will be convenient like -ls if 0 <= x && x+1 <= len(argv) { // -grep will be convenient like -ls if IsRegFile(path){ found := gsh.xGrep(path,argv[x+1:]) if 0 < found { foundv := gsh.CmdCurrent.FoundFile if len(foundv) < 10 { gsh.CmdCurrent.FoundFile = append(gsh.CmdCurrent.FoundFile,path) } } } } if !isin("-r0",argv) { // -d 0 in du, -depth n in find //total.Depth += 1 if (fstat.Mode & S_IFMT) == S_IFLNK { continue } if dstat.Rdev != fstat.Rdev { fmt.Printf("--I-- don't follow differnet device %v(%v) %v(%v)\n", dir,dstat.Rdev,path,fstat.Rdev) } if (fstat.Mode & S_IFMT) == S_IFDIR { total = gsh.xxFind(depth+1,total,path,npatv,argv) } } } } return total } func (gsh*GshContext)xxFind(depth int,total *fileSum,dir string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) dirfile,oerr := os.OpenFile(dir,os.O_RDONLY,0) if oerr == nil { //fmt.Printf("--I-- %v(%v)[%d]\n",dir,dirfile,dirfile.Fd()) defer dirfile.Close() }else{ } prev := *total var dstat syscall.Stat_t staterr := syscall.Lstat(dir,&dstat) // should be flstat if staterr != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",staterr) } return total } //filev,err := ioutil.ReadDir(dir) //_,err := ioutil.ReadDir(dir) // ReadDir() heavy and bad for huge directory /* if err != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",err) } return total } */ if depth == 0 { total = cumFinfo(total,dir,staterr,dstat,argv,true) if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { showFileInfo(dir,argv) } } // it it is not a directory, just scan it and finish for ei := 0; ; ei++ { entv,rderr := dirfile.Readdirnames(8*1024) if len(entv) == 0 || rderr != nil { //if rderr != nil { fmt.Printf("[%d] len=%d (%v)\n",ei,len(entv),rderr) } break } if 0 < ei { fmt.Printf("--I-- xxFind[%d] %d large-dir: %s\n",ei,len(entv),dir) } total = gsh.xxFindEntv(depth,total,dir,dstat,ei,entv,npatv,argv) } if isin("-du",argv) { // if in "du" mode fmt.Printf("%d\t%s\n",(total.Blocks-prev.Blocks)/2,dir) } return total } // {ufind|fu|ls} [Files] [// Names] [-- Expressions] // Files is "." by default // Names is "*" by default // Expressions is "-print" by default for "ufind", or -du for "fu" command func (gsh*GshContext)xFind(argv[]string){ if 0 < len(argv) && strBegins(argv[0],"?"){ showFound(gsh,argv) return } if isin("-cksum",argv) || isin("-sum",argv) { gsh.lastCheckSum = CheckSum{} if isin("-sum",argv) && isin("-add",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 }else if isin("-sum",argv) && isin("-size",argv) { gsh.lastCheckSum.SumType |= SUM_SIZE }else if isin("-sum",argv) && isin("-bsd",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_BSD }else if isin("-sum",argv) && isin("-sysv",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_SYSV }else if isin("-sum",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 } if isin("-unix",argv) { gsh.lastCheckSum.SumType |= SUM_UNIXFILE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32UNIX) } if isin("-ieee",argv){ gsh.lastCheckSum.SumType |= SUM_CRCIEEE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32IEEE) } gsh.lastCheckSum.RusgAtStart = Getrusagev() } var total = fileSum{} npats := []string{} for _,v := range argv { if 0 < len(v) && v[0] != '-' { npats = append(npats,v) } if v == "//" { break } if v == "--" { break } if v == "-grep" { break } if v == "-ls" { break } } if len(npats) == 0 { npats = []string{"*"} } cwd := "." // if to be fullpath ::: cwd, _ := os.Getwd() if len(npats) == 0 { npats = []string{"*"} } fusage := gsh.xxFind(0,&total,cwd,npats,argv) if gsh.lastCheckSum.SumType != 0 { var sumi uint64 = 0 sum := &gsh.lastCheckSum if (sum.SumType & SUM_SIZE) != 0 { sumi = uint64(sum.Size) } if (sum.SumType & SUM_SUM64) != 0 { sumi = sum.Sum64 } if (sum.SumType & SUM_SUM16_SYSV) != 0 { s := uint32(sum.Sum16) r := (s & 0xFFFF) + ((s & 0xFFFFFFFF) >> 16) s = (r & 0xFFFF) + (r >> 16) sum.Crc32Val = uint32(s) sumi = uint64(s) } if (sum.SumType & SUM_SUM16_BSD) != 0 { sum.Crc32Val = uint32(sum.Sum16) sumi = uint64(sum.Sum16) } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32end(sum.Crc32Val,uint64(sum.Size)) sumi = uint64(byteCRC32end(sum.Crc32Val,uint64(sum.Size))) } if 1 < sum.Files { fmt.Printf("%v %v // %v / %v files, %v/file\r\n", sumi,sum.Size, abssize(sum.Size),sum.Files, abssize(sum.Size/sum.Files)) }else{ fmt.Printf("%v %v %v\n", sumi,sum.Size,npats[0]) } } if !isin("-grep",argv) { showFusage("total",fusage) } if !isin("-s",argv){ hits := len(gsh.CmdCurrent.FoundFile) if 0 < hits { fmt.Printf("--I-- %d files hits // can be refered with !%df\n", hits,len(gsh.CommandHistory)) } } if gsh.lastCheckSum.SumType != 0 { if isin("-ru",argv) { sum := &gsh.lastCheckSum sum.Done = time.Now() gsh.lastCheckSum.RusgAtEnd = Getrusagev() elps := sum.Done.Sub(sum.Start) fmt.Printf("--cksum-size: %v (%v) / %v files, %v/file\r\n", sum.Size,abssize(sum.Size),sum.Files,abssize(sum.Size/sum.Files)) nanos := int64(elps) fmt.Printf("--cksum-time: %v/total, %v/file, %.1f files/s, %v\r\n", abbtime(nanos), abbtime(nanos/sum.Files), (float64(sum.Files)*1000000000.0)/float64(nanos), abbspeed(sum.Size,nanos)) diff := RusageSubv(sum.RusgAtEnd,sum.RusgAtStart) fmt.Printf("--cksum-rusg: %v\n",sRusagef("",argv,diff)) } } return } func showFiles(files[]string){ sp := "" for i,file := range files { if 0 < i { sp = " " } else { sp = "" } fmt.Printf(sp+"%s",escapeWhiteSP(file)) } } func showFound(gshCtx *GshContext, argv[]string){ for i,v := range gshCtx.CommandHistory { if 0 < len(v.FoundFile) { fmt.Printf("!%d (%d) ",i,len(v.FoundFile)) if isin("-ls",argv){ fmt.Printf("\n") for _,file := range v.FoundFile { fmt.Printf("") //sub number? showFileInfo(file,argv) } }else{ showFiles(v.FoundFile) fmt.Printf("\n") } } } } func showMatchFile(filev []os.FileInfo, npat,dir string, argv[]string)(string,bool){ fname := "" found := false for _,v := range filev { match, _ := filepath.Match(npat,(v.Name())) if match { fname = v.Name() found = true //fmt.Printf("[%d] %s\n",i,v.Name()) showIfExecutable(fname,dir,argv) } } return fname,found } func showIfExecutable(name,dir string,argv[]string)(ffullpath string,ffound bool){ var fullpath string if strBegins(name,DIRSEP){ fullpath = name }else{ fullpath = dir + DIRSEP + name } fi, err := os.Stat(fullpath) if err != nil { fullpath = dir + DIRSEP + name + ".go" fi, err = os.Stat(fullpath) } if err == nil { fm := fi.Mode() if fm.IsRegular() { // R_OK=4, W_OK=2, X_OK=1, F_OK=0 if syscall.Access(fullpath,5) == nil { ffullpath = fullpath ffound = true if ! isin("-s", argv) { showFileInfo(fullpath,argv) } } } } return ffullpath, ffound } func which(list string, argv []string) (fullpathv []string, itis bool){ if len(argv) <= 1 { fmt.Printf("Usage: which comand [-s] [-a] [-ls]\n") return []string{""}, false } path := argv[1] if strBegins(path,"/") { // should check if excecutable? _,exOK := showIfExecutable(path,"/",argv) fmt.Printf("--D-- %v exOK=%v\n",path,exOK) return []string{path},exOK } pathenv, efound := os.LookupEnv(list) if ! efound { fmt.Printf("--E-- which: no \"%s\" environment\n",list) return []string{""}, false } showall := isin("-a",argv) || 0 <= strings.Index(path,"*") dirv := strings.Split(pathenv,PATHSEP) ffound := false ffullpath := path for _, dir := range dirv { if 0 <= strings.Index(path,"*") { // by wild-card list,_ := ioutil.ReadDir(dir) ffullpath, ffound = showMatchFile(list,path,dir,argv) }else{ ffullpath, ffound = showIfExecutable(path,dir,argv) } //if ffound && !isin("-a", argv) { if ffound && !showall { break; } } return []string{ffullpath}, ffound } func stripLeadingWSParg(argv[]string)([]string){ for ; 0 < len(argv); { if len(argv[0]) == 0 { argv = argv[1:] }else{ break } } return argv } func xEval(argv []string, nlend bool){ argv = stripLeadingWSParg(argv) if len(argv) == 0 { fmt.Printf("eval [%%format] [Go-expression]\n") return } pfmt := "%v" if argv[0][0] == '%' { pfmt = argv[0] argv = argv[1:] } if len(argv) == 0 { return } gocode := strings.Join(argv," "); //fmt.Printf("eval [%v] [%v]\n",pfmt,gocode) fset := token.NewFileSet() rval, _ := types.Eval(fset,nil,token.NoPos,gocode) fmt.Printf(pfmt,rval.Value) if nlend { fmt.Printf("\n") } } func getval(name string) (found bool, val int) { /* should expand the name here */ if name == "gsh.pid" { return true, os.Getpid() }else if name == "gsh.ppid" { return true, os.Getppid() } return false, 0 } func echo(argv []string, nlend bool){ for ai := 1; ai < len(argv); ai++ { if 1 < ai { fmt.Printf(" "); } arg := argv[ai] found, val := getval(arg) if found { fmt.Printf("%d",val) }else{ fmt.Printf("%s",arg) } } if nlend { fmt.Printf("\n"); } } func resfile() string { return "gsh.tmp" } //var resF *File func resmap() { //_ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, os.ModeAppend) // https://developpaper.com/solution-to-golang-bad-file-descriptor-problem/ _ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, 0600) if err != nil { fmt.Printf("refF could not open: %s\n",err) }else{ fmt.Printf("refF opened\n") } } // @@2020-0821 func gshScanArg(str string,strip int)(argv []string){ var si = 0 var sb = 0 var inBracket = 0 var arg1 = make([]byte,LINESIZE) var ax = 0 debug := false for ; si < len(str); si++ { if str[si] != ' ' { break } } sb = si for ; si < len(str); si++ { if sb <= si { if debug { fmt.Printf("--Da- +%d %2d-%2d %s ... %s\n", inBracket,sb,si,arg1[0:ax],str[si:]) } } ch := str[si] if ch == '{' { inBracket += 1 if 0 < strip && inBracket <= strip { //fmt.Printf("stripLEV %d <= %d?\n",inBracket,strip) continue } } if 0 < inBracket { if ch == '}' { inBracket -= 1 if 0 < strip && inBracket < strip { //fmt.Printf("stripLEV %d < %d?\n",inBracket,strip) continue } } arg1[ax] = ch ax += 1 continue } if str[si] == ' ' { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,str[sb:si],string(str[si:])) } sb = si+1 ax = 0 continue } arg1[ax] = ch ax += 1 } if sb < si { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,string(arg1[0:ax]),string(str[si:])) } } if debug { fmt.Printf("--Da- %d [%s] => [%d]%v\n",strip,str,len(argv),argv) } return argv } // should get stderr (into tmpfile ?) and return func (gsh*GshContext)Popen(name,mode string)(pin*os.File,pout*os.File,err bool){ var pv = []int{-1,-1} syscall.Pipe(pv) xarg := gshScanArg(name,1) name = strings.Join(xarg," ") pin = os.NewFile(uintptr(pv[0]),"StdoutOf-{"+name+"}") pout = os.NewFile(uintptr(pv[1]),"StdinOf-{"+name+"}") fdix := 0 dir := "?" if mode == "r" { dir = "<" fdix = 1 // read from the stdout of the process }else{ dir = ">" fdix = 0 // write to the stdin of the process } gshPA := gsh.gshPA savfd := gshPA.Files[fdix] var fd uintptr = 0 if mode == "r" { fd = pout.Fd() gshPA.Files[fdix] = pout.Fd() }else{ fd = pin.Fd() gshPA.Files[fdix] = pin.Fd() } // should do this by Goroutine? if false { fmt.Printf("--Ip- Opened fd[%v] %s %v\n",fd,dir,name) fmt.Printf("--RED1 [%d,%d,%d]->[%d,%d,%d]\n", os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd(), pin.Fd(),pout.Fd(),pout.Fd()) } savi := os.Stdin savo := os.Stdout save := os.Stderr os.Stdin = pin os.Stdout = pout os.Stderr = pout gsh.BackGround = true gsh.gshelllh(name) gsh.BackGround = false os.Stdin = savi os.Stdout = savo os.Stderr = save gshPA.Files[fdix] = savfd return pin,pout,false } // External commands func (gsh*GshContext)excommand(exec bool, argv []string) (notf bool,exit bool) { if gsh.CmdTrace { fmt.Printf("--I-- excommand[%v](%v)\n",exec,argv) } gshPA := gsh.gshPA fullpathv, itis := which("PATH",[]string{"which",argv[0],"-s"}) if itis == false { return true,false } fullpath := fullpathv[0] argv = unescapeWhiteSPV(argv) if 0 < strings.Index(fullpath,".go") { nargv := argv // []string{} gofullpathv, itis := which("PATH",[]string{"which","go","-s"}) if itis == false { fmt.Printf("--F-- Go not found\n") return false,true } gofullpath := gofullpathv[0] nargv = []string{ gofullpath, "run", fullpath } fmt.Printf("--I-- %s {%s %s %s}\n",gofullpath, nargv[0],nargv[1],nargv[2]) if exec { syscall.Exec(gofullpath,nargv,os.Environ()) }else{ pid, _ := syscall.ForkExec(gofullpath,nargv,&gshPA) if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),nargv) gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) }else{ rusage := syscall.Rusage {} syscall.Wait4(pid,nil,0,&rusage) gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage } } }else{ if exec { syscall.Exec(fullpath,argv,os.Environ()) }else{ pid, _ := syscall.ForkExec(fullpath,argv,&gshPA) //fmt.Printf("[%d]\n",pid); // '&' to be background if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),argv) gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) }else{ rusage := syscall.Rusage {} syscall.Wait4(pid,nil,0,&rusage); gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage } } } return false,false } // Builtin Commands func (gshCtx *GshContext) sleep(argv []string) { if len(argv) < 2 { fmt.Printf("Sleep 100ms, 100us, 100ns, ...\n") return } duration := argv[1]; d, err := time.ParseDuration(duration) if err != nil { d, err = time.ParseDuration(duration+"s") if err != nil { fmt.Printf("duration ? %s (%s)\n",duration,err) return } } //fmt.Printf("Sleep %v\n",duration) time.Sleep(d) if 0 < len(argv[2:]) { gshCtx.gshellv(argv[2:]) } } func (gshCtx *GshContext)repeat(argv []string) { if len(argv) < 2 { return } start0 := time.Now() for ri,_ := strconv.Atoi(argv[1]); 0 < ri; ri-- { if 0 < len(argv[2:]) { //start := time.Now() gshCtx.gshellv(argv[2:]) end := time.Now() elps := end.Sub(start0); if( 1000000000 < elps ){ fmt.Printf("(repeat#%d %v)\n",ri,elps); } } } } func (gshCtx *GshContext)gen(argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: %s N\n",argv[0]) return } // should br repeated by "repeat" command count, _ := strconv.Atoi(argv[1]) fd := gshPA.Files[1] // Stdout file := os.NewFile(fd,"internalStdOut") fmt.Printf("--I-- Gen. Count=%d to [%d]\n",count,file.Fd()) //buf := []byte{} outdata := "0123 5678 0123 5678 0123 5678 0123 5678\r" for gi := 0; gi < count; gi++ { file.WriteString(outdata) } //file.WriteString("\n") fmt.Printf("\n(%d B)\n",count*len(outdata)); //file.Close() } // Remote Execution // 2020-0820 func Elapsed(from time.Time)(string){ elps := time.Now().Sub(from) if 1000000000 < elps { return fmt.Sprintf("[%5d.%02ds]",elps/1000000000,(elps%1000000000)/10000000) }else if 1000000 < elps { return fmt.Sprintf("[%3d.%03dms]",elps/1000000,(elps%1000000)/1000) }else{ return fmt.Sprintf("[%3d.%03dus]",elps/1000,(elps%1000)) } } func abbtime(nanos int64)(string){ if 1000000000 < nanos { return fmt.Sprintf("%d.%02ds",nanos/1000000000,(nanos%1000000000)/10000000) }else if 1000000 < nanos { return fmt.Sprintf("%d.%03dms",nanos/1000000,(nanos%1000000)/1000) }else{ return fmt.Sprintf("%d.%03dus",nanos/1000,(nanos%1000)) } } func abssize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%.3fKiB",fsize/1024) } } func absize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%8.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%8.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%8.3fKiB",fsize/1024) } } func abbspeed(totalB int64,ns int64)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGB/s",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMB/s",MBs) }else{ return fmt.Sprintf("%6.3fKB/s",MBs*1000) } } func abspeed(totalB int64,ns time.Duration)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGBps",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMBps",MBs) }else{ return fmt.Sprintf("%6.3fKBps",MBs*1000) } } func fileRelay(what string,in*os.File,out*os.File,size int64,bsiz int)(wcount int64){ Start := time.Now() buff := make([]byte,bsiz) var total int64 = 0 var rem int64 = size nio := 0 Prev := time.Now() var PrevSize int64 = 0 fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) START\n", what,absize(total),size,nio) for i:= 0; ; i++ { var len = bsiz if int(rem) < len { len = int(rem) } Now := time.Now() Elps := Now.Sub(Prev); if 1000000000 < Now.Sub(Prev) { fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %s\n", what,absize(total),size,nio, abspeed((total-PrevSize),Elps)) Prev = Now; PrevSize = total } rlen := len if in != nil { // should watch the disconnection of out rcc,err := in.Read(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"--En- X: %s read(%v,%v)<%v\n", what,rcc,err,in.Name()) break } rlen = rcc if string(buff[0:10]) == "((SoftEOF " { var ecc int64 = 0 fmt.Sscanf(string(buff),"((SoftEOF %v",&ecc) fmt.Printf(Elapsed(Start)+"--En- X: %s Recv ((SoftEOF %v))/%v\n", what,ecc,total) if ecc == total { break } } } wlen := rlen if out != nil { wcc,err := out.Write(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"-En-- X: %s write(%v,%v)>%v\n", what,wcc,err,out.Name()) break } wlen = wcc } if wlen < rlen { fmt.Printf(Elapsed(Start)+"--En- X: %s incomplete write (%v/%v)\n", what,wlen,rlen) break; } nio += 1 total += int64(rlen) rem -= int64(rlen) if rem <= 0 { break } } Done := time.Now() Elps := float64(Done.Sub(Start))/1000000000 //Seconds TotalMB := float64(total)/1000000 //MB MBps := TotalMB / Elps fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %v %.3fMB/s\n", what,total,size,nio,absize(total),MBps) return total } func tcpPush(clnt *os.File){ // shrink socket buffer and recover usleep(100); } func (gsh*GshContext)RexecServer(argv[]string){ debug := true Start0 := time.Now() Start := Start0 // if local == ":" { local = "0.0.0.0:9999" } local := "0.0.0.0:9999" if 0 < len(argv) { if argv[0] == "-s" { debug = false argv = argv[1:] } } if 0 < len(argv) { argv = argv[1:] } port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("--En- S: Address error: %s (%s)\n",local,err) return } fmt.Printf(Elapsed(Start)+"--In- S: Listening at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Listen error: %s (%s)\n",local,err) return } reqbuf := make([]byte,LINESIZE) res := "" for { fmt.Printf(Elapsed(Start0)+"--In- S: Listening at %s...\n",local); aconn, err := sconn.AcceptTCP() Start = time.Now() if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Accept error: %s (%s)\n",local,err) return } clnt, _ := aconn.File() fd := clnt.Fd() ar := aconn.RemoteAddr() if debug { fmt.Printf(Elapsed(Start0)+"--In- S: Accepted TCP at %s [%d] <- %v\n", local,fd,ar) } res = fmt.Sprintf("220 GShell/%s Server\r\n",VERSION) fmt.Fprintf(clnt,"%s",res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %s",res) } count, err := clnt.Read(reqbuf) if err != nil { fmt.Printf(Elapsed(Start)+"--En- C: (%v %v) %v", count,err,string(reqbuf)) } req := string(reqbuf[:count]) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",string(req)) } reqv := strings.Split(string(req),"\r") cmdv := gshScanArg(reqv[0],0) //cmdv := strings.Split(reqv[0]," ") switch cmdv[0] { case "HELO": res = fmt.Sprintf("250 %v",req) case "GET": // download {remotefile|-zN} [localfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var in *os.File = nil var pseudoEOF = false if 1 < len(cmdv) { fname = cmdv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() in = xin dsize = MaxStreamSize pseudoEOF = true } }else{ xin,err := os.Open(fname) if err != nil { fmt.Printf("--En- GET (%v)\n",err) }else{ defer xin.Close() in = xin fi,_ := xin.Stat() dsize = fi.Size() } } } //fmt.Printf(Elapsed(Start)+"--In- GET %v:%v\n",dsize,bsize) res = fmt.Sprintf("200 %v\r\n",dsize) fmt.Fprintf(clnt,"%v",res) tcpPush(clnt); // should be separated as line in receiver fmt.Printf(Elapsed(Start)+"--In- S: %v",res) wcount := fileRelay("SendGET",in,clnt,dsize,bsize) if pseudoEOF { in.Close() // pipe from the command // show end of stream data (its size) by OOB? SoftEOF := fmt.Sprintf("((SoftEOF %v))",wcount) fmt.Printf(Elapsed(Start)+"--In- S: Send %v\n",SoftEOF) tcpPush(clnt); // to let SoftEOF data apper at the top of recevied data fmt.Fprintf(clnt,"%v\r\n",SoftEOF) tcpPush(clnt); // to let SoftEOF alone in a packet (separate with 200 OK) // with client generated random? //fmt.Printf("--In- L: close %v (%v)\n",in.Fd(),in.Name()) } res = fmt.Sprintf("200 GET done\r\n") case "PUT": // upload {srcfile|-zN} [dstfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var out *os.File = nil if 1 < len(cmdv) { // localfile fmt.Sscanf(cmdv[1],"%d",&dsize) } if 2 < len(cmdv) { fname = cmdv[2] if fname == "-" { // nul dev }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) //fmt.Printf("--In- S: open(%v) out(%v) err(%v)\n",fname,xout,err) if err != nil { fmt.Printf("--En- PUT (%v)\n",err) }else{ out = xout } } fmt.Printf(Elapsed(Start)+"--In- L: open(%v,w) %v (%v)\n", fname,local,err) } fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) fmt.Printf(Elapsed(Start)+"--In- S: 200 %v OK\r\n",dsize) fmt.Fprintf(clnt,"200 %v OK\r\n",dsize) fileRelay("RecvPUT",clnt,out,dsize,bsize) res = fmt.Sprintf("200 PUT done\r\n") default: res = fmt.Sprintf("400 What? %v",req) } swcc,serr := clnt.Write([]byte(res)) if serr != nil { fmt.Printf(Elapsed(Start)+"--In- S: (wc=%v er=%v) %v",swcc,serr,res) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",res) } aconn.Close(); clnt.Close(); } sconn.Close(); } func (gsh*GshContext)RexecClient(argv[]string)(int,string){ debug := true Start := time.Now() if len(argv) == 1 { return -1,"EmptyARG" } argv = argv[1:] if argv[0] == "-serv" { gsh.RexecServer(argv[1:]) return 0,"Server" } remote := "0.0.0.0:9999" if argv[0][0] == '@' { remote = argv[0][1:] argv = argv[1:] } if argv[0] == "-s" { debug = false argv = argv[1:] } dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf(Elapsed(Start)+"Address error: %s (%s)\n",remote,err) return -1,"AddressError" } fmt.Printf(Elapsed(Start)+"--In- C: Connecting to %s\n",remote) serv, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf(Elapsed(Start)+"Connection error: %s (%s)\n",remote,err) return -1,"CannotConnect" } if debug { al := serv.LocalAddr() fmt.Printf(Elapsed(Start)+"--In- C: Connected to %v <- %v\n",remote,al) } req := "" res := make([]byte,LINESIZE) count,err := serv.Read(res) if err != nil { fmt.Printf("--En- S: (%3d,%v) %v",count,err,string(res)) } if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res)) } if argv[0] == "GET" { savPA := gsh.gshPA var bsize int = 64*1024 req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) fmt.Printf(Elapsed(Start)+"--In- C: %v",req) fmt.Fprintf(serv,req) count,err = serv.Read(res) if err != nil { }else{ var dsize int64 = 0 var out *os.File = nil var out_tobeclosed *os.File = nil var fname string = "" var rcode int = 0 var pid int = -1 fmt.Sscanf(string(res),"%d %d",&rcode,&dsize) fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) if 3 <= len(argv) { fname = argv[2] if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout out_tobeclosed = xout pid = 0 // should be its pid } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) if err != nil { fmt.Print("--En- %v\n",err) } out = xout //fmt.Printf("--In-- %d > %s\n",out.Fd(),fname) } } in,_ := serv.File() fileRelay("RecvGET",in,out,dsize,bsize) if 0 <= pid { gsh.gshPA = savPA // recovery of Fd(), and more? fmt.Printf(Elapsed(Start)+"--In- L: close Pipe > %v\n",fname) out_tobeclosed.Close() //syscall.Wait4(pid,nil,0,nil) //@@ } } }else if argv[0] == "PUT" { remote, _ := serv.File() var local *os.File = nil var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var ofile string = "-" //fmt.Printf("--I-- Rex %v\n",argv) if 1 < len(argv) { fname := argv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() //in = xin local = xin fmt.Printf("--In- [%d] < Upload output of %v\n", local.Fd(),fname) ofile = "-from."+fname dsize = MaxStreamSize } }else{ xlocal,err := os.Open(fname) if err != nil { fmt.Printf("--En- (%s)\n",err) local = nil }else{ local = xlocal fi,_ := local.Stat() dsize = fi.Size() defer local.Close() //fmt.Printf("--I-- Rex in(%v / %v)\n",ofile,dsize) } ofile = fname fmt.Printf(Elapsed(Start)+"--In- L: open(%v,r)=%v %v (%v)\n", fname,dsize,local,err) } } if 2 < len(argv) && argv[2] != "" { ofile = argv[2] //fmt.Printf("(%d)%v B.ofile=%v\n",len(argv),argv,ofile) } //fmt.Printf(Elapsed(Start)+"--I-- Rex out(%v)\n",ofile) fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) req = fmt.Sprintf("PUT %v %v \r\n",dsize,ofile) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) count,err = serv.Read(res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) } fileRelay("SendPUT",local,remote,dsize,bsize) }else{ req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) //fmt.Printf("--In- sending RexRequest(%v)\n",len(req)) } //fmt.Printf(Elapsed(Start)+"--In- waiting RexResponse...\n") count,err = serv.Read(res) ress := "" if count == 0 { ress = "(nil)\r\n" }else{ ress = string(res[:count]) } if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: (%d,%v) %v",count,err,ress) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",ress) } serv.Close() //conn.Close() var stat string var rcode int fmt.Sscanf(ress,"%d %s",&rcode,&stat) //fmt.Printf("--D-- Client: %v (%v)",rcode,stat) return rcode,ress } // Remote Shell // gcp file [...] { [host]:[port:][dir] | dir } // -p | -no-p func (gsh*GshContext)FileCopy(argv[]string){ var host = "" var port = "" var upload = false var download = false var xargv = []string{"rex-gcp"} var srcv = []string{} var dstv = []string{} argv = argv[1:] for _,v := range argv { /* if v[0] == '-' { // might be a pseudo file (generated date) continue } */ obj := strings.Split(v,":") //fmt.Printf("%d %v %v\n",len(obj),v,obj) if 1 < len(obj) { host = obj[0] file := "" if 0 < len(host) { gsh.LastServer.host = host }else{ host = gsh.LastServer.host port = gsh.LastServer.port } if 2 < len(obj) { port = obj[1] if 0 < len(port) { gsh.LastServer.port = port }else{ port = gsh.LastServer.port } file = obj[2] }else{ file = obj[1] } if len(srcv) == 0 { download = true srcv = append(srcv,file) continue } upload = true dstv = append(dstv,file) continue } /* idx := strings.Index(v,":") if 0 <= idx { remote = v[0:idx] if len(srcv) == 0 { download = true srcv = append(srcv,v[idx+1:]) continue } upload = true dstv = append(dstv,v[idx+1:]) continue } */ if download { dstv = append(dstv,v) }else{ srcv = append(srcv,v) } } hostport := "@" + host + ":" + port if upload { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"PUT") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v // %v\n",hostport,dstv,srcv,xargv) fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v\n",hostport,dstv,srcv) gsh.RexecClient(xargv) }else if download { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"GET") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v // %v\n",hostport,srcv,dstv,xargv) fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v\n",hostport,srcv,dstv) gsh.RexecClient(xargv) }else{ } } // target func (gsh*GshContext)Trelpath(rloc string)(string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(rloc) twd, _ := os.Getwd() os.Chdir(cwd) tpath := twd + "/" + rloc return tpath } // join to rmote GShell - [user@]host[:port] or cd host:[port]:path func (gsh*GshContext)Rjoin(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- current server = %v\n",gsh.RSERV) return } serv := argv[1] servv := strings.Split(serv,":") if 1 <= len(servv) { if servv[0] == "lo" { servv[0] = "localhost" } } switch len(servv) { case 1: //if strings.Index(serv,":") < 0 { serv = servv[0] + ":" + fmt.Sprintf("%d",GSH_PORT) //} case 2: // host:port serv = strings.Join(servv,":") } xargv := []string{"rex-join","@"+serv,"HELO"} rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Joined (%v) %v\n",rcode,stat) gsh.RSERV = serv }else{ fmt.Printf("--I-- NG, could not joined (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rexec(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- rexec command [ | {file || {command} ]\n",gsh.RSERV) return } /* nargv := gshScanArg(strings.Join(argv," "),0) fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) if nargv[1][0] != '{' { nargv[1] = "{" + nargv[1] + "}" fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) } argv = nargv */ nargv := []string{} nargv = append(nargv,"{"+strings.Join(argv[1:]," ")+"}") fmt.Printf("--D-- nargc=%d %v\n",len(nargv),nargv) argv = nargv xargv := []string{"rex-exec","@"+gsh.RSERV,"GET"} xargv = append(xargv,argv...) xargv = append(xargv,"/dev/tty") rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Rexec (%v) %v\n",rcode,stat) }else{ fmt.Printf("--I-- NG Rexec (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rchdir(argv[]string){ if len(argv) <= 1 { return } cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(argv[1]) twd, _ := os.Getwd() gsh.RWD = twd fmt.Printf("--I-- JWD=%v\n",twd) os.Chdir(cwd) } func (gsh*GshContext)Rpwd(argv[]string){ fmt.Printf("%v\n",gsh.RWD) } func (gsh*GshContext)Rls(argv[]string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) argv[0] = "-ls" gsh.xFind(argv) os.Chdir(cwd) } func (gsh*GshContext)Rput(argv[]string){ var local string = "" var remote string = "" if 1 < len(argv) { local = argv[1] remote = local // base name } if 2 < len(argv) { remote = argv[2] } fmt.Printf("--I-- jput from=%v to=%v\n",local,gsh.Trelpath(remote)) } func (gsh*GshContext)Rget(argv[]string){ var remote string = "" var local string = "" if 1 < len(argv) { remote = argv[1] local = remote // base name } if 2 < len(argv) { local = argv[2] } fmt.Printf("--I-- jget from=%v to=%v\n",gsh.Trelpath(remote),local) } // network // -s, -si, -so // bi-directional, source, sync (maybe socket) func (gshCtx*GshContext)sconnect(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -s [host]:[port[.udp]]\n") return } remote := argv[1] if remote == ":" { remote = "0.0.0.0:9999" } if inTCP { // TCP dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } conn, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); fd := file.Fd() fmt.Printf("Socket: connected to %s, socket[%d]\n",remote,fd) savfd := gshPA.Files[1] gshPA.Files[1] = fd; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() }else{ //dport, err := net.ResolveUDPAddr("udp4",remote); dport, err := net.ResolveUDPAddr("udp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } //conn, err := net.DialUDP("udp4",nil,dport) conn, err := net.DialUDP("udp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); fd := file.Fd() ar := conn.RemoteAddr() //al := conn.LocalAddr() fmt.Printf("Socket: connected to %s [%s], socket[%d]\n", remote,ar.String(),fd) savfd := gshPA.Files[1] gshPA.Files[1] = fd; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() } } func (gshCtx*GshContext)saccept(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -ac [host]:[port[.udp]]\n") return } local := argv[1] if local == ":" { local = "0.0.0.0:9999" } if inTCP { // TCP port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } //fmt.Printf("Listen at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } //fmt.Printf("Accepting at %s...\n",local); aconn, err := sconn.AcceptTCP() if err != nil { fmt.Printf("Accept error: %s (%s)\n",local,err) return } file, _ := aconn.File() fd := file.Fd() fmt.Printf("Accepted TCP at %s [%d]\n",local,fd) savfd := gshPA.Files[0] gshPA.Files[0] = fd; gshCtx.gshellv(argv[2:]) gshPA.Files[0] = savfd sconn.Close(); aconn.Close(); file.Close(); }else{ //port, err := net.ResolveUDPAddr("udp4",local); port, err := net.ResolveUDPAddr("udp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } fmt.Printf("Listen UDP at %s...\n",local); //uconn, err := net.ListenUDP("udp4", port) uconn, err := net.ListenUDP("udp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } file, _ := uconn.File() fd := file.Fd() ar := uconn.RemoteAddr() remote := "" if ar != nil { remote = ar.String() } if remote == "" { remote = "?" } // not yet received //fmt.Printf("Accepted at %s [%d] <- %s\n",local,fd,"") savfd := gshPA.Files[0] gshPA.Files[0] = fd; savenv := gshPA.Env gshPA.Env = append(savenv, "REMOTE_HOST="+remote) gshCtx.gshellv(argv[2:]) gshPA.Env = savenv gshPA.Files[0] = savfd uconn.Close(); file.Close(); } } // empty line command func (gshCtx*GshContext)xPwd(argv[]string){ // execute context command, pwd + date // context notation, representation scheme, to be resumed at re-login cwd, _ := os.Getwd() switch { case isin("-a",argv): gshCtx.ShowChdirHistory(argv) case isin("-ls",argv): showFileInfo(cwd,argv) default: fmt.Printf("%s\n",cwd) case isin("-v",argv): // obsolete emtpy command t := time.Now() date := t.Format(time.UnixDate) exe, _ := os.Executable() host, _ := os.Hostname() fmt.Printf("{PWD=\"%s\"",cwd) fmt.Printf(" HOST=\"%s\"",host) fmt.Printf(" DATE=\"%s\"",date) fmt.Printf(" TIME=\"%s\"",t.String()) fmt.Printf(" PID=\"%d\"",os.Getpid()) fmt.Printf(" EXE=\"%s\"",exe) fmt.Printf("}\n") } } // History // these should be browsed and edited by HTTP browser // show the time of command with -t and direcotry with -ls // openfile-history, sort by -a -m -c // sort by elapsed time by -t -s // search by "more" like interface // edit history // sort history, and wc or uniq // CPU and other resource consumptions // limit showing range (by time or so) // export / import history func (gshCtx *GshContext)xHistory(argv []string){ atWorkDirX := -1 if 1 < len(argv) && strBegins(argv[1],"@") { atWorkDirX,_ = strconv.Atoi(argv[1][1:]) } //fmt.Printf("--D-- showHistory(%v)\n",argv) for i, v := range gshCtx.CommandHistory { // exclude commands not to be listed by default // internal commands may be suppressed by default if v.CmdLine == "" && !isin("-a",argv) { continue; } if 0 <= atWorkDirX { if v.WorkDirX != atWorkDirX { continue } } if !isin("-n",argv){ // like "fc" fmt.Printf("!%-2d ",i) } if isin("-v",argv){ fmt.Println(v) // should be with it date }else{ if isin("-l",argv) || isin("-l0",argv) { elps := v.EndAt.Sub(v.StartAt); start := v.StartAt.Format(time.Stamp) fmt.Printf("@%d ",v.WorkDirX) fmt.Printf("[%v] %11v/t ",start,elps) } if isin("-l",argv) && !isin("-l0",argv){ fmt.Printf("%v",Rusagef("%t %u\t// %s",argv,v.Rusagev)) } if isin("-at",argv) { // isin("-ls",argv){ dhi := v.WorkDirX // workdir history index fmt.Printf("@%d %s\t",dhi,v.WorkDir) // show the FileInfo of the output command?? } fmt.Printf("%s",v.CmdLine) fmt.Printf("\n") } } } // !n - history index func searchHistory(gshCtx GshContext, gline string) (string, bool, bool){ if gline[0] == '!' { hix, err := strconv.Atoi(gline[1:]) if err != nil { fmt.Printf("--E-- (%s : range)\n",hix) return "", false, true } if hix < 0 || len(gshCtx.CommandHistory) <= hix { fmt.Printf("--E-- (%d : out of range)\n",hix) return "", false, true } return gshCtx.CommandHistory[hix].CmdLine, false, false } // search //for i, v := range gshCtx.CommandHistory { //} return gline, false, false } func (gsh*GshContext)cmdStringInHistory(hix int)(cmd string, ok bool){ if 0 <= hix && hix < len(gsh.CommandHistory) { return gsh.CommandHistory[hix].CmdLine,true } return "",false } // temporary adding to PATH environment // cd name -lib for LD_LIBRARY_PATH // chdir with directory history (date + full-path) // -s for sort option (by visit date or so) func (gsh*GshContext)ShowChdirHistory1(i int,v GChdirHistory, argv []string){ fmt.Printf("!%-2d ",v.CmdIndex) // the first command at this WorkDir fmt.Printf("@%d ",i) fmt.Printf("[%v] ",v.MovedAt.Format(time.Stamp)) showFileInfo(v.Dir,argv) } func (gsh*GshContext)ShowChdirHistory(argv []string){ for i, v := range gsh.ChdirHistory { gsh.ShowChdirHistory1(i,v,argv) } } func skipOpts(argv[]string)(int){ for i,v := range argv { if strBegins(v,"-") { }else{ return i } } return -1 } func (gshCtx*GshContext)xChdir(argv []string){ cdhist := gshCtx.ChdirHistory if isin("?",argv ) || isin("-t",argv) || isin("-a",argv) { gshCtx.ShowChdirHistory(argv) return } pwd, _ := os.Getwd() dir := "" if len(argv) <= 1 { dir = toFullpath("~") }else{ i := skipOpts(argv[1:]) if i < 0 { dir = toFullpath("~") }else{ dir = argv[1+i] } } if strBegins(dir,"@") { if dir == "@0" { // obsolete dir = gshCtx.StartDir }else if dir == "@!" { index := len(cdhist) - 1 if 0 < index { index -= 1 } dir = cdhist[index].Dir }else{ index, err := strconv.Atoi(dir[1:]) if err != nil { fmt.Printf("--E-- xChdir(%v)\n",err) dir = "?" }else if len(gshCtx.ChdirHistory) <= index { fmt.Printf("--E-- xChdir(history range error)\n") dir = "?" }else{ dir = cdhist[index].Dir } } } if dir != "?" { err := os.Chdir(dir) if err != nil { fmt.Printf("--E-- xChdir(%s)(%v)\n",argv[1],err) }else{ cwd, _ := os.Getwd() if cwd != pwd { hist1 := GChdirHistory { } hist1.Dir = cwd hist1.MovedAt = time.Now() hist1.CmdIndex = len(gshCtx.CommandHistory)+1 gshCtx.ChdirHistory = append(cdhist,hist1) if !isin("-s",argv){ //cwd, _ := os.Getwd() //fmt.Printf("%s\n",cwd) ix := len(gshCtx.ChdirHistory)-1 gshCtx.ShowChdirHistory1(ix,hist1,argv) } } } } if isin("-ls",argv){ cwd, _ := os.Getwd() showFileInfo(cwd,argv); } } func TimeValSub(tv1 *syscall.Timeval, tv2 *syscall.Timeval){ *tv1 = syscall.NsecToTimeval(tv1.Nano() - tv2.Nano()) } func RusageSubv(ru1, ru2 [2]syscall.Rusage)([2]syscall.Rusage){ TimeValSub(&ru1[0].Utime,&ru2[0].Utime) TimeValSub(&ru1[0].Stime,&ru2[0].Stime) TimeValSub(&ru1[1].Utime,&ru2[1].Utime) TimeValSub(&ru1[1].Stime,&ru2[1].Stime) return ru1 } func TimeValAdd(tv1 syscall.Timeval, tv2 syscall.Timeval)(syscall.Timeval){ tvs := syscall.NsecToTimeval(tv1.Nano() + tv2.Nano()) return tvs } /* func RusageAddv(ru1, ru2 [2]syscall.Rusage)([2]syscall.Rusage){ TimeValAdd(ru1[0].Utime,ru2[0].Utime) TimeValAdd(ru1[0].Stime,ru2[0].Stime) TimeValAdd(ru1[1].Utime,ru2[1].Utime) TimeValAdd(ru1[1].Stime,ru2[1].Stime) return ru1 } */ // Resource Usage func sRusagef(fmtspec string, argv []string, ru [2]syscall.Rusage)(string){ // ru[0] self , ru[1] children ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) uu := (ut.Sec*1000000 + int64(ut.Usec)) * 1000 su := (st.Sec*1000000 + int64(st.Usec)) * 1000 tu := uu + su ret := fmt.Sprintf("%v/sum",abbtime(tu)) ret += fmt.Sprintf(", %v/usr",abbtime(uu)) ret += fmt.Sprintf(", %v/sys",abbtime(su)) return ret } func Rusagef(fmtspec string, argv []string, ru [2]syscall.Rusage)(string){ ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) fmt.Printf("%d.%06ds/u ",ut.Sec,ut.Usec) //ru[1].Utime.Sec,ru[1].Utime.Usec) fmt.Printf("%d.%06ds/s ",st.Sec,st.Usec) //ru[1].Stime.Sec,ru[1].Stime.Usec) return "" } func Getrusagev()([2]syscall.Rusage){ var ruv = [2]syscall.Rusage{} syscall.Getrusage(syscall.RUSAGE_SELF,&ruv[0]) syscall.Getrusage(syscall.RUSAGE_CHILDREN,&ruv[1]) return ruv } func showRusage(what string,argv []string, ru *syscall.Rusage){ fmt.Printf("%s: ",what); fmt.Printf("Usr=%d.%06ds",ru.Utime.Sec,ru.Utime.Usec) fmt.Printf(" Sys=%d.%06ds",ru.Stime.Sec,ru.Stime.Usec) fmt.Printf(" Rss=%vB",ru.Maxrss) if isin("-l",argv) { fmt.Printf(" MinFlt=%v",ru.Minflt) fmt.Printf(" MajFlt=%v",ru.Majflt) fmt.Printf(" IxRSS=%vB",ru.Ixrss) fmt.Printf(" IdRSS=%vB",ru.Idrss) fmt.Printf(" Nswap=%vB",ru.Nswap) fmt.Printf(" Read=%v",ru.Inblock) fmt.Printf(" Write=%v",ru.Oublock) } fmt.Printf(" Snd=%v",ru.Msgsnd) fmt.Printf(" Rcv=%v",ru.Msgrcv) //if isin("-l",argv) { fmt.Printf(" Sig=%v",ru.Nsignals) //} fmt.Printf("\n"); } func (gshCtx *GshContext)xTime(argv[]string)(bool){ if 2 <= len(argv){ gshCtx.LastRusage = syscall.Rusage{} rusagev1 := Getrusagev() fin := gshCtx.gshellv(argv[1:]) rusagev2 := Getrusagev() showRusage(argv[1],argv,&gshCtx.LastRusage) rusagev := RusageSubv(rusagev2,rusagev1) showRusage("self",argv,&rusagev[0]) showRusage("chld",argv,&rusagev[1]) return fin }else{ rusage:= syscall.Rusage {} syscall.Getrusage(syscall.RUSAGE_SELF,&rusage) showRusage("self",argv, &rusage) syscall.Getrusage(syscall.RUSAGE_CHILDREN,&rusage) showRusage("chld",argv, &rusage) return false } } func (gshCtx *GshContext)xJobs(argv[]string){ fmt.Printf("%d Jobs\n",len(gshCtx.BackGroundJobs)) for ji, pid := range gshCtx.BackGroundJobs { //wstat := syscall.WaitStatus {0} rusage := syscall.Rusage {} //wpid, err := syscall.Wait4(pid,&wstat,syscall.WNOHANG,&rusage); wpid, err := syscall.Wait4(pid,nil,syscall.WNOHANG,&rusage); if err != nil { fmt.Printf("--E-- %%%d [%d] (%v)\n",ji,pid,err) }else{ fmt.Printf("%%%d[%d](%d)\n",ji,pid,wpid) showRusage("chld",argv,&rusage) } } } func (gsh*GshContext)inBackground(argv[]string)(bool){ if gsh.CmdTrace { fmt.Printf("--I-- inBackground(%v)\n",argv) } gsh.BackGround = true // set background option xfin := false xfin = gsh.gshellv(argv) gsh.BackGround = false return xfin } // -o file without command means just opening it and refer by #N // should be listed by "files" comnmand func (gshCtx*GshContext)xOpen(argv[]string){ var pv = []int{-1,-1} err := syscall.Pipe(pv) fmt.Printf("--I-- pipe()=[#%d,#%d](%v)\n",pv[0],pv[1],err) } func (gshCtx*GshContext)fromPipe(argv[]string){ } func (gshCtx*GshContext)xClose(argv[]string){ } // redirect func (gshCtx*GshContext)redirect(argv[]string)(bool){ if len(argv) < 2 { return false } cmd := argv[0] fname := argv[1] var file *os.File = nil fdix := 0 mode := os.O_RDONLY switch { case cmd == "-i" || cmd == "<": fdix = 0 mode = os.O_RDONLY case cmd == "-o" || cmd == ">": fdix = 1 mode = os.O_RDWR | os.O_CREATE case cmd == "-a" || cmd == ">>": fdix = 1 mode = os.O_RDWR | os.O_CREATE | os.O_APPEND } if fname[0] == '#' { fd, err := strconv.Atoi(fname[1:]) if err != nil { fmt.Printf("--E-- (%v)\n",err) return false } file = os.NewFile(uintptr(fd),"MaybePipe") }else{ xfile, err := os.OpenFile(argv[1], mode, 0600) if err != nil { fmt.Printf("--E-- (%s)\n",err) return false } file = xfile } gshPA := gshCtx.gshPA savfd := gshPA.Files[fdix] gshPA.Files[fdix] = file.Fd() fmt.Printf("--I-- Opened [%d] %s\n",file.Fd(),argv[1]) gshCtx.gshellv(argv[2:]) gshPA.Files[fdix] = savfd return false } //fmt.Fprintf(res, "GShell Status: %q", html.EscapeString(req.URL.Path)) func httpHandler(res http.ResponseWriter, req *http.Request){ path := req.URL.Path fmt.Printf("--I-- Got HTTP Request(%s)\n",path) { gshCtxBuf, _ := setupGshContext() gshCtx := &gshCtxBuf fmt.Printf("--I-- %s\n",path[1:]) gshCtx.tgshelll(path[1:]) } fmt.Fprintf(res, "Hello(^-^)//\n%s\n",path) } func (gshCtx *GshContext) httpServer(argv []string){ http.HandleFunc("/", httpHandler) accport := "localhost:9999" fmt.Printf("--I-- HTTP Server Start at [%s]\n",accport) http.ListenAndServe(accport,nil) } func (gshCtx *GshContext)xGo(argv[]string){ go gshCtx.gshellv(argv[1:]); } func (gshCtx *GshContext) xPs(argv[]string)(){ } // Plugin // plugin [-ls [names]] to list plugins // Reference: plugin source code func (gshCtx *GshContext) whichPlugin(name string,argv[]string)(pi *PluginInfo){ pi = nil for _,p := range gshCtx.PluginFuncs { if p.Name == name && pi == nil { pi = &p } if !isin("-s",argv){ //fmt.Printf("%v %v ",i,p) if isin("-ls",argv){ showFileInfo(p.Path,argv) }else{ fmt.Printf("%s\n",p.Name) } } } return pi } func (gshCtx *GshContext) xPlugin(argv[]string) (error) { if len(argv) == 0 || argv[0] == "-ls" { gshCtx.whichPlugin("",argv) return nil } name := argv[0] Pin := gshCtx.whichPlugin(name,[]string{"-s"}) if Pin != nil { os.Args = argv // should be recovered? Pin.Addr.(func())() return nil } sofile := toFullpath(argv[0] + ".so") // or find it by which($PATH) p, err := plugin.Open(sofile) if err != nil { fmt.Printf("--E-- plugin.Open(%s)(%v)\n",sofile,err) return err } fname := "Main" f, err := p.Lookup(fname) if( err != nil ){ fmt.Printf("--E-- plugin.Lookup(%s)(%v)\n",fname,err) return err } pin := PluginInfo {p,f,name,sofile} gshCtx.PluginFuncs = append(gshCtx.PluginFuncs,pin) fmt.Printf("--I-- added (%d)\n",len(gshCtx.PluginFuncs)) //fmt.Printf("--I-- first call(%s:%s)%v\n",sofile,fname,argv) os.Args = argv f.(func())() return err } func (gshCtx*GshContext)Args(argv[]string){ for i,v := range os.Args { fmt.Printf("[%v] %v\n",i,v) } } func (gshCtx *GshContext) showVersion(argv[]string){ if isin("-l",argv) { fmt.Printf("%v/%v (%v)",NAME,VERSION,DATE); }else{ fmt.Printf("%v",VERSION); } if isin("-a",argv) { fmt.Printf(" %s",AUTHOR) } if !isin("-n",argv) { fmt.Printf("\n") } } // Scanf // string decomposer // scanf [format] [input] func scanv(sstr string)(strv[]string){ strv = strings.Split(sstr," ") return strv } func scanUntil(src,end string)(rstr string,leng int){ idx := strings.Index(src,end) if 0 <= idx { rstr = src[0:idx] return rstr,idx+len(end) } return src,0 } // -bn -- display base-name part only // can be in some %fmt, for sed rewriting func (gsh*GshContext)printVal(fmts string, vstr string, optv[]string){ //vint,err := strconv.Atoi(vstr) var ival int64 = 0 n := 0 err := error(nil) if strBegins(vstr,"_") { vx,_ := strconv.Atoi(vstr[1:]) if vx < len(gsh.iValues) { vstr = gsh.iValues[vx] }else{ } } // should use Eval() if strBegins(vstr,"0x") { n,err = fmt.Sscanf(vstr[2:],"%x",&ival) }else{ n,err = fmt.Sscanf(vstr,"%d",&ival) //fmt.Printf("--D-- n=%d err=(%v) {%s}=%v\n",n,err,vstr, ival) } if n == 1 && err == nil { //fmt.Printf("--D-- formatn(%v) ival(%v)\n",fmts,ival) fmt.Printf("%"+fmts,ival) }else{ if isin("-bn",optv){ fmt.Printf("%"+fmts,filepath.Base(vstr)) }else{ fmt.Printf("%"+fmts,vstr) } } } func (gsh*GshContext)printfv(fmts,div string,argv[]string,optv[]string,list[]string){ //fmt.Printf("{%d}",len(list)) //curfmt := "v" outlen := 0 curfmt := gsh.iFormat if 0 < len(fmts) { for xi := 0; xi < len(fmts); xi++ { fch := fmts[xi] if fch == '%' { if xi+1 < len(fmts) { curfmt = string(fmts[xi+1]) gsh.iFormat = curfmt xi += 1 if xi+1 < len(fmts) && fmts[xi+1] == '(' { vals,leng := scanUntil(fmts[xi+2:],")") //fmt.Printf("--D-- show fmt(%v) val(%v) next(%v)\n",curfmt,vals,leng) gsh.printVal(curfmt,vals,optv) xi += 2+leng-1 outlen += 1 } continue } } if fch == '_' { hi,leng := scanInt(fmts[xi+1:]) if 0 < leng { if hi < len(gsh.iValues) { gsh.printVal(curfmt,gsh.iValues[hi],optv) outlen += 1 // should be the real length }else{ fmt.Printf("((out-range))") } xi += leng continue; } } fmt.Printf("%c",fch) outlen += 1 } }else{ //fmt.Printf("--D-- print {%s}\n") for i,v := range list { if 0 < i { fmt.Printf(div) } gsh.printVal(curfmt,v,optv) outlen += 1 } } if 0 < outlen { fmt.Printf("\n") } } func (gsh*GshContext)Scanv(argv[]string){ //fmt.Printf("--D-- Scanv(%v)\n",argv) if len(argv) == 1 { return } argv = argv[1:] fmts := "" if strBegins(argv[0],"-F") { fmts = argv[0] gsh.iDelimiter = fmts argv = argv[1:] } input := strings.Join(argv," ") if fmts == "" { // simple decomposition v := scanv(input) gsh.iValues = v //fmt.Printf("%v\n",strings.Join(v,",")) }else{ v := make([]string,8) n,err := fmt.Sscanf(input,fmts,&v[0],&v[1],&v[2],&v[3]) fmt.Printf("--D-- Scanf ->(%v) n=%d err=(%v)\n",v,n,err) gsh.iValues = v } } func (gsh*GshContext)Printv(argv[]string){ if false { //@@U fmt.Printf("%v\n",strings.Join(argv[1:]," ")) return } //fmt.Printf("--D-- Printv(%v)\n",argv) //fmt.Printf("%v\n",strings.Join(gsh.iValues,",")) div := gsh.iDelimiter fmts := "" argv = argv[1:] if 0 < len(argv) { if strBegins(argv[0],"-F") { div = argv[0][2:] argv = argv[1:] } } optv := []string{} for _,v := range argv { if strBegins(v,"-"){ optv = append(optv,v) argv = argv[1:] }else{ break; } } if 0 < len(argv) { fmts = strings.Join(argv," ") } gsh.printfv(fmts,div,argv,optv,gsh.iValues) } func (gsh*GshContext)Basename(argv[]string){ for i,v := range gsh.iValues { gsh.iValues[i] = filepath.Base(v) } } func (gsh*GshContext)Sortv(argv[]string){ sv := gsh.iValues sort.Slice(sv , func(i,j int) bool { return sv[i] < sv[j] }) } func (gsh*GshContext)Shiftv(argv[]string){ vi := len(gsh.iValues) if 0 < vi { if isin("-r",argv) { top := gsh.iValues[0] gsh.iValues = append(gsh.iValues[1:],top) }else{ gsh.iValues = gsh.iValues[1:] } } } func (gsh*GshContext)Enq(argv[]string){ } func (gsh*GshContext)Deq(argv[]string){ } func (gsh*GshContext)Push(argv[]string){ gsh.iValStack = append(gsh.iValStack,argv[1:]) fmt.Printf("depth=%d\n",len(gsh.iValStack)) } func (gsh*GshContext)Dump(argv[]string){ for i,v := range gsh.iValStack { fmt.Printf("%d %v\n",i,v) } } func (gsh*GshContext)Pop(argv[]string){ depth := len(gsh.iValStack) if 0 < depth { v := gsh.iValStack[depth-1] if isin("-cat",argv){ gsh.iValues = append(gsh.iValues,v...) }else{ gsh.iValues = v } gsh.iValStack = gsh.iValStack[0:depth-1] fmt.Printf("depth=%d %s\n",len(gsh.iValStack),gsh.iValues) }else{ fmt.Printf("depth=%d\n",depth) } } // Command Interpreter func (gshCtx*GshContext)gshellv(argv []string) (fin bool) { fin = false if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv((%d))\n",len(argv)) } if len(argv) <= 0 { return false } xargv := []string{} for ai := 0; ai < len(argv); ai++ { xargv = append(xargv,strsubst(gshCtx,argv[ai],false)) } argv = xargv if false { for ai := 0; ai < len(argv); ai++ { fmt.Printf("[%d] %s [%d]%T\n", ai,argv[ai],len(argv[ai]),argv[ai]) } } cmd := argv[0] if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv(%d)%v\n",len(argv),argv) } switch { // https://tour.golang.org/flowcontrol/11 case cmd == "": gshCtx.xPwd([]string{}); // emtpy command case cmd == "-x": gshCtx.CmdTrace = ! gshCtx.CmdTrace case cmd == "-xt": gshCtx.CmdTime = ! gshCtx.CmdTime case cmd == "-ot": gshCtx.sconnect(true, argv) case cmd == "-ou": gshCtx.sconnect(false, argv) case cmd == "-it": gshCtx.saccept(true , argv) case cmd == "-iu": gshCtx.saccept(false, argv) case cmd == "-i" || cmd == "<" || cmd == "-o" || cmd == ">" || cmd == "-a" || cmd == ">>" || cmd == "-s" || cmd == "><": gshCtx.redirect(argv) case cmd == "|": gshCtx.fromPipe(argv) case cmd == "args": gshCtx.Args(argv) case cmd == "bg" || cmd == "-bg": rfin := gshCtx.inBackground(argv[1:]) return rfin case cmd == "-bn": gshCtx.Basename(argv) case cmd == "call": _,_ = gshCtx.excommand(false,argv[1:]) case cmd == "cd" || cmd == "chdir": gshCtx.xChdir(argv); case cmd == "-cksum": gshCtx.xFind(argv) case cmd == "-sum": gshCtx.xFind(argv) case cmd == "-sumtest": str := "" if 1 < len(argv) { str = argv[1] } crc := strCRC32(str,uint64(len(str))) fprintf(stderr,"%v %v\n",crc,len(str)) case cmd == "close": gshCtx.xClose(argv) case cmd == "gcp": gshCtx.FileCopy(argv) case cmd == "dec" || cmd == "decode": gshCtx.Dec(argv) case cmd == "#define": case cmd == "dic" || cmd == "d": xDic(argv) case cmd == "dump": gshCtx.Dump(argv) case cmd == "echo" || cmd == "e": echo(argv,true) case cmd == "enc" || cmd == "encode": gshCtx.Enc(argv) case cmd == "env": env(argv) case cmd == "eval": xEval(argv[1:],true) case cmd == "ev" || cmd == "events": dumpEvents(argv) case cmd == "exec": _,_ = gshCtx.excommand(true,argv[1:]) // should not return here case cmd == "exit" || cmd == "quit": // write Result code EXIT to 3> return true case cmd == "fdls": // dump the attributes of fds (of other process) case cmd == "-find" || cmd == "fin" || cmd == "ufind" || cmd == "uf": gshCtx.xFind(argv[1:]) case cmd == "fu": gshCtx.xFind(argv[1:]) case cmd == "fork": // mainly for a server case cmd == "-gen": gshCtx.gen(argv) case cmd == "-go": gshCtx.xGo(argv) case cmd == "-grep": gshCtx.xFind(argv) case cmd == "gdeq": gshCtx.Deq(argv) case cmd == "genq": gshCtx.Enq(argv) case cmd == "gpop": gshCtx.Pop(argv) case cmd == "gpush": gshCtx.Push(argv) case cmd == "history" || cmd == "hi": // hi should be alias gshCtx.xHistory(argv) case cmd == "jobs": gshCtx.xJobs(argv) case cmd == "lnsp" || cmd == "nlsp": gshCtx.SplitLine(argv) case cmd == "-ls": gshCtx.xFind(argv) case cmd == "nop": // do nothing case cmd == "pipe": gshCtx.xOpen(argv) case cmd == "plug" || cmd == "plugin" || cmd == "pin": gshCtx.xPlugin(argv[1:]) case cmd == "print" || cmd == "-pr": // output internal slice // also sprintf should be gshCtx.Printv(argv) case cmd == "ps": gshCtx.xPs(argv) case cmd == "pstitle": // to be gsh.title case cmd == "rexecd" || cmd == "rexd": gshCtx.RexecServer(argv) case cmd == "rexec" || cmd == "rex": gshCtx.RexecClient(argv) case cmd == "repeat" || cmd == "rep": // repeat cond command gshCtx.repeat(argv) case cmd == "replay": gshCtx.xReplay(argv) case cmd == "scan": // scan input (or so in fscanf) to internal slice (like Files or map) gshCtx.Scanv(argv) case cmd == "set": // set name ... case cmd == "serv": gshCtx.httpServer(argv) case cmd == "shift": gshCtx.Shiftv(argv) case cmd == "sleep": gshCtx.sleep(argv) case cmd == "-sort": gshCtx.Sortv(argv) case cmd == "j" || cmd == "join": gshCtx.Rjoin(argv) case cmd == "a" || cmd == "alpa": gshCtx.Rexec(argv) case cmd == "jcd" || cmd == "jchdir": gshCtx.Rchdir(argv) case cmd == "jget": gshCtx.Rget(argv) case cmd == "jls": gshCtx.Rls(argv) case cmd == "jput": gshCtx.Rput(argv) case cmd == "jpwd": gshCtx.Rpwd(argv) case cmd == "time": fin = gshCtx.xTime(argv) case cmd == "ungets": if 1 < len(argv) { ungets(argv[1]+"\n") }else{ } case cmd == "pwd": gshCtx.xPwd(argv); case cmd == "ver" || cmd == "-ver" || cmd == "version": gshCtx.showVersion(argv) case cmd == "where": // data file or so? case cmd == "which": which("PATH",argv); case cmd == "gj" && 1 < len(argv) && argv[1] == "listen": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "serve": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "join": go gj_client(argv[1:]); case cmd == "gj": jsend(argv); case cmd == "jsend": jsend(argv); default: if gshCtx.whichPlugin(cmd,[]string{"-s"}) != nil { gshCtx.xPlugin(argv) }else{ notfound,_ := gshCtx.excommand(false,argv) if notfound { fmt.Printf("--E-- command not found (%v)\n",cmd) } } } return fin } func (gsh*GshContext)gshelll(gline string) (rfin bool) { argv := strings.Split(string(gline)," ") fin := gsh.gshellv(argv) return fin } func (gsh*GshContext)tgshelll(gline string)(xfin bool){ start := time.Now() fin := gsh.gshelll(gline) end := time.Now() elps := end.Sub(start); if gsh.CmdTime { fmt.Printf("--T-- " + time.Now().Format(time.Stamp) + "(%d.%09ds)\n", elps/1000000000,elps%1000000000) } return fin } func Ttyid() (int) { fi, err := os.Stdin.Stat() if err != nil { return 0; } //fmt.Printf("Stdin: %v Dev=%d\n", // fi.Mode(),fi.Mode()&os.ModeDevice) if (fi.Mode() & os.ModeDevice) != 0 { stat := syscall.Stat_t{}; err := syscall.Fstat(0,&stat) if err != nil { //fmt.Printf("--I-- Stdin: (%v)\n",err) }else{ //fmt.Printf("--I-- Stdin: rdev=%d %d\n", // stat.Rdev&0xFF,stat.Rdev); //fmt.Printf("--I-- Stdin: tty%d\n",stat.Rdev&0xFF); return int(stat.Rdev & 0xFF) } } return 0 } func (gshCtx *GshContext) ttyfile() string { //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) ttyfile := gshCtx.GshHomeDir + "/" + "gsh-tty" + fmt.Sprintf("%02d",gshCtx.TerminalId) //strconv.Itoa(gshCtx.TerminalId) //fmt.Printf("--I-- ttyfile=%s\n",ttyfile) return ttyfile } func (gshCtx *GshContext) ttyline()(*os.File){ file, err := os.OpenFile(gshCtx.ttyfile(),os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if err != nil { fmt.Printf("--F-- cannot open %s (%s)\n",gshCtx.ttyfile(),err) return file; } return file } func (gshCtx *GshContext)getline(hix int, skipping bool, prevline string) (string) { if( skipping ){ reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) }else if true { return xgetline(hix,prevline,gshCtx) } /* else if( with_exgetline && gshCtx.GetLine != "" ){ //var xhix int64 = int64(hix); // cast newenv := os.Environ() newenv = append(newenv, "GSH_LINENO="+strconv.FormatInt(int64(hix),10) ) tty := gshCtx.ttyline() tty.WriteString(prevline) Pa := os.ProcAttr { "", // start dir newenv, //os.Environ(), []*os.File{os.Stdin,os.Stdout,os.Stderr,tty}, nil, } //fmt.Printf("--I-- getline=%s // %s\n",gsh_getlinev[0],gshCtx.GetLine) proc, err := os.StartProcess(gsh_getlinev[0],[]string{"getline","getline"},&Pa) if err != nil { fmt.Printf("--F-- getline process error (%v)\n",err) // for ; ; { } return "exit (getline program failed)" } //stat, err := proc.Wait() proc.Wait() buff := make([]byte,LINESIZE) count, err := tty.Read(buff) //_, err = tty.Read(buff) //fmt.Printf("--D-- getline (%d)\n",count) if err != nil { if ! (count == 0) { // && err.String() == "EOF" ) { fmt.Printf("--E-- getline error (%s)\n",err) } }else{ //fmt.Printf("--I-- getline OK \"%s\"\n",buff) } tty.Close() gline := string(buff[0:count]) return gline }else */ { // if isatty { fmt.Printf("!%d",hix) fmt.Print(PROMPT) // } reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) } } //== begin ======================================================= getline /* * getline.c * 2020-0819 extracted from dog.c * getline.go * 2020-0822 ported to Go */ /* package main // getline main import ( "fmt" // fmt "strings" // strings "os" // os "syscall" // syscall //"bytes" // os //"os/exec" // os ) */ // C language compatibility functions var errno = 0 var stdin *os.File = os.Stdin var stdout *os.File = os.Stdout var stderr *os.File = os.Stderr var EOF = -1 var NULL = 0 type FILE os.File type StrBuff []byte var NULL_FP *os.File = nil var NULLSP = 0 //var LINESIZE = 1024 func system(cmdstr string)(int){ PA := syscall.ProcAttr { "", // the starting directory os.Environ(), []uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, nil, } argv := strings.Split(cmdstr," ") pid,err := syscall.ForkExec(argv[0],argv,&PA) if( err != nil ){ fmt.Printf("--E-- syscall(%v) err(%v)\n",cmdstr,err) } syscall.Wait4(pid,nil,0,nil) /* argv := strings.Split(cmdstr," ") fmt.Fprintf(os.Stderr,"--I-- system(%v)\n",argv) //cmd := exec.Command(argv[0:]...) cmd := exec.Command(argv[0],argv[1],argv[2]) cmd.Stdin = strings.NewReader("output of system") var out bytes.Buffer cmd.Stdout = &out var serr bytes.Buffer cmd.Stderr = &serr err := cmd.Run() if err != nil { fmt.Fprintf(os.Stderr,"--E-- system(%v)err(%v)\n",argv,err) fmt.Printf("ERR:%s\n",serr.String()) }else{ fmt.Printf("%s",out.String()) } */ return 0 } func atoi(str string)(ret int){ ret,err := fmt.Sscanf(str,"%d",ret) if err == nil { return ret }else{ // should set errno return 0 } } func getenv(name string)(string){ val,got := os.LookupEnv(name) if got { return val }else{ return "?" } } func strcpy(dst StrBuff, src string){ var i int srcb := []byte(src) for i = 0; i < len(src) && srcb[i] != 0; i++ { dst[i] = srcb[i] } dst[i] = 0 } func xstrcpy(dst StrBuff, src StrBuff){ dst = src } func strcat(dst StrBuff, src StrBuff){ dst = append(dst,src...) } func strdup(str StrBuff)(string){ return string(str[0:strlen(str)]) } func sstrlen(str string)(int){ return len(str) } func strlen(str StrBuff)(int){ var i int for i = 0; i < len(str) && str[i] != 0; i++ { } return i } func sizeof(data StrBuff)(int){ return len(data) } func isatty(fd int)(ret int){ return 1 } func fopen(file string,mode string)(fp*os.File){ if mode == "r" { fp,err := os.Open(file) if( err != nil ){ fmt.Printf("--E-- fopen(%s,%s)=(%v)\n",file,mode,err) return NULL_FP; } return fp; }else{ fp,err := os.OpenFile(file,os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if( err != nil ){ return NULL_FP; } return fp; } } func fclose(fp*os.File){ fp.Close() } func fflush(fp *os.File)(int){ return 0 } func fgetc(fp*os.File)(int){ var buf [1]byte _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } func sfgets(str*string, size int, fp*os.File)(int){ buf := make(StrBuff,size) var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fgets(buf StrBuff, size int, fp*os.File)(int){ var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fputc(ch int , fp*os.File)(int){ var buf [1]byte buf[0] = byte(ch) fp.Write(buf[0:1]) return 0 } func fputs(buf StrBuff, fp*os.File)(int){ fp.Write(buf) return 0 } func xfputss(str string, fp*os.File)(int){ return fputs([]byte(str),fp) } func sscanf(str StrBuff,fmts string, params ...interface{})(int){ fmt.Sscanf(string(str[0:strlen(str)]),fmts,params...) return 0 } func fprintf(fp*os.File,fmts string, params ...interface{})(int){ fmt.Fprintf(fp,fmts,params...) return 0 } // Command Line IME //----------------------------------------------------------------------- MyIME var MyIMEVER = "MyIME/0.0.2"; type RomKana struct { dic string // dictionaly ID pat string // input pattern out string // output pattern hit int64 // count of hit and used } var dicents = 0 var romkana [1024]RomKana var Romkan []RomKana func isinDic(str string)(int){ for i,v := range Romkan { if v.pat == str { return i } } return -1 } const ( DIC_COM_LOAD = "im" DIC_COM_DUMP = "s" DIC_COM_LIST = "ls" DIC_COM_ENA = "en" DIC_COM_DIS = "di" ) func helpDic(argv []string){ out := stderr cmd := "" if 0 < len(argv) { cmd = argv[0] } fprintf(out,"--- %v Usage\n",cmd) fprintf(out,"... Commands\n") fprintf(out,"... %v %-3v [dicName] [dicURL ] -- Import dictionary\n",cmd,DIC_COM_LOAD) fprintf(out,"... %v %-3v [pattern] -- Search in dictionary\n",cmd,DIC_COM_DUMP) fprintf(out,"... %v %-3v [dicName] -- List dictionaries\n",cmd,DIC_COM_LIST) fprintf(out,"... %v %-3v [dicName] -- Disable dictionaries\n",cmd,DIC_COM_DIS) fprintf(out,"... %v %-3v [dicName] -- Enable dictionaries\n",cmd,DIC_COM_ENA) fprintf(out,"... Keys ... %v\n","ESC can be used for '\\'") fprintf(out,"... \\c -- Reverse the case of the last character\n",) fprintf(out,"... \\i -- Replace input with translated text\n",) fprintf(out,"... \\j -- On/Off translation mode\n",) fprintf(out,"... \\l -- Force Lower Case\n",) fprintf(out,"... \\u -- Force Upper Case (software CapsLock)\n",) fprintf(out,"... \\v -- Show translation actions\n",) fprintf(out,"... \\x -- Replace the last input character with it Hexa-Decimal\n",) } func xDic(argv[]string){ if len(argv) <= 1 { helpDic(argv) return } argv = argv[1:] var debug = false var info = false var silent = false var dump = false var builtin = false cmd := argv[0] argv = argv[1:] opt := "" arg := "" if 0 < len(argv) { arg1 := argv[0] if arg1[0] == '-' { switch arg1 { default: fmt.Printf("--Ed-- Unknown option(%v)\n",arg1) return case "-b": builtin = true case "-d": debug = true case "-s": silent = true case "-v": info = true } opt = arg1 argv = argv[1:] } } dicName := "" dicURL := "" if 0 < len(argv) { arg = argv[0] dicName = arg argv = argv[1:] } if 0 < len(argv) { dicURL = argv[0] argv = argv[1:] } if false { fprintf(stderr,"--Dd-- com(%v) opt(%v) arg(%v)\n",cmd,opt,arg) } if cmd == DIC_COM_LOAD { //dicType := "" dicBody := "" if !builtin && dicName != "" && dicURL == "" { f,err := os.Open(dicName) if err == nil { dicURL = dicName }else{ f,err = os.Open(dicName+".html") if err == nil { dicURL = dicName+".html" }else{ f,err = os.Open("gshdic-"+dicName+".html") if err == nil { dicURL = "gshdic-"+dicName+".html" } } } if err == nil { var buf = make([]byte,128*1024) count,err := f.Read(buf) f.Close() if info { fprintf(stderr,"--Id-- ReadDic(%v,%v)\n",count,err) } dicBody = string(buf[0:count]) } } if dicBody == "" { switch arg { default: dicName = "WorldDic" dicURL = WorldDic if info { fprintf(stderr,"--Id-- default dictionary \"%v\"\n", dicName); } case "wnn": dicName = "WnnDic" dicURL = WnnDic case "sumomo": dicName = "SumomoDic" dicURL = SumomoDic case "sijimi": dicName = "SijimiDic" dicURL = SijimiDic case "jkl": dicName = "JKLJaDic" dicURL = JA_JKLDic } if debug { fprintf(stderr,"--Id-- %v URL=%v\n\n",dicName,dicURL); } dicv := strings.Split(dicURL,",") if debug { fprintf(stderr,"--Id-- %v encoded data...\n",dicName) fprintf(stderr,"Type: %v\n",dicv[0]) fprintf(stderr,"Body: %v\n",dicv[1]) fprintf(stderr,"\n") } body,_ := base64.StdEncoding.DecodeString(dicv[1]) dicBody = string(body) } if info { fmt.Printf("--Id-- %v %v\n",dicName,dicURL) fmt.Printf("%s\n",dicBody) } if debug { fprintf(stderr,"--Id-- dicName %v text...\n",dicName) fprintf(stderr,"%v\n",string(dicBody)) } entv := strings.Split(dicBody,"\n"); if info { fprintf(stderr,"--Id-- %v scan...\n",dicName); } var added int = 0 var dup int = 0 for i,v := range entv { var pat string var out string fmt.Sscanf(v,"%s %s",&pat,&out) if len(pat) <= 0 { }else{ if 0 <= isinDic(pat) { dup += 1 continue } romkana[dicents] = RomKana{dicName,pat,out,0} dicents += 1 added += 1 Romkan = append(Romkan,RomKana{dicName,pat,out,0}) if debug { fmt.Printf("[%3v]:[%2v]%-8v [%2v]%v\n", i,len(pat),pat,len(out),out) } } } if !silent { url := dicURL if strBegins(url,"data:") { url = "builtin" } fprintf(stderr,"--Id-- %v scan... %v added, %v dup. / %v total (%v)\n", dicName,added,dup,len(Romkan),url); } // should sort by pattern length for conclete match, for performance if debug { arg = "" // search pattern dump = true } } if cmd == DIC_COM_DUMP || dump { fprintf(stderr,"--Id-- %v dump... %v entries:\n",dicName,len(Romkan)); var match = 0 for i := 0; i < len(Romkan); i++ { dic := Romkan[i].dic pat := Romkan[i].pat out := Romkan[i].out if arg == "" || 0 <= strings.Index(pat,arg)||0 <= strings.Index(out,arg) { fmt.Printf("\\\\%v\t%v [%2v]%-8v [%2v]%v\n", i,dic,len(pat),pat,len(out),out) match += 1 } } fprintf(stderr,"--Id-- %v matched %v / %v entries:\n",arg,match,len(Romkan)); } } func loadDefaultDic(dic int){ if( 0 < len(Romkan) ){ return } //fprintf(stderr,"\r\n") xDic([]string{"dic",DIC_COM_LOAD}); var info = false if info { fprintf(stderr,"--Id-- Conguraturations!! WorldDic is now activated.\r\n") fprintf(stderr,"--Id-- enter \"dic\" command for help.\r\n") } } func readDic()(int){ /* var rk *os.File; var dic = "MyIME-dic.txt"; //rk = fopen("romkana.txt","r"); //rk = fopen("JK-JA-morse-dic.txt","r"); rk = fopen(dic,"r"); if( rk == NULL_FP ){ if( true ){ fprintf(stderr,"--%s-- Could not load %s\n",MyIMEVER,dic); } return -1; } if( true ){ var di int; var line = make(StrBuff,1024); var pat string var out string for di = 0; di < 1024; di++ { if( fgets(line,sizeof(line),rk) == NULLSP ){ break; } fmt.Sscanf(string(line[0:strlen(line)]),"%s %s",&pat,&out); //sscanf(line,"%s %[^\r\n]",&pat,&out); romkana[di].pat = pat; romkana[di].out = out; //fprintf(stderr,"--Dd- %-10s %s\n",pat,out) } dicents += di if( false ){ fprintf(stderr,"--%s-- loaded romkana.txt [%d]\n",MyIMEVER,di); for di = 0; di < dicents; di++ { fprintf(stderr, "%s %s\n",romkana[di].pat,romkana[di].out); } } } fclose(rk); //romkana[dicents].pat = "//ddump" //romkana[dicents].pat = "//ddump" // dump the dic. and clean the command input */ return 0; } func matchlen(stri string, pati string)(int){ if strBegins(stri,pati) { return len(pati) }else{ return 0 } } func convs(src string)(string){ var si int; var sx = len(src); var di int; var mi int; var dstb []byte for si = 0; si < sx; { // search max. match from the position if strBegins(src[si:],"%x/") { // %x/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 //fmt.Sscanf(src[si+3:si+3+ix],"%d",&iv) fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%x",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%d/") { // %d/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%d",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%t") { now := time.Now() if true { date := now.Format(time.Stamp) dstb = append(dstb,[]byte(date)...) si = si+3 } continue } var maxlen int = 0; var len int; mi = -1; for di = 0; di < dicents; di++ { len = matchlen(src[si:],romkana[di].pat); if( maxlen < len ){ maxlen = len; mi = di; } } if( 0 < maxlen ){ out := romkana[mi].out; dstb = append(dstb,[]byte(out)...); si += maxlen; }else{ dstb = append(dstb,src[si]) si += 1; } } return string(dstb) } func trans(src string)(int){ dst := convs(src); xfputss(dst,stderr); return 0; } //------------------------------------------------------------- LINEEDIT // "?" at the top of the line means searching history // should be compatilbe with Telnet const ( EV_MODE = 255 EV_IDLE = 254 EV_TIMEOUT = 253 GO_UP = 252 // k GO_DOWN = 251 // j GO_RIGHT = 250 // l GO_LEFT = 249 // h DEL_RIGHT = 248 // x GO_TOPL = 'A'-0x40 // 0 GO_ENDL = 'E'-0x40 // $ GO_TOPW = 239 // b GO_ENDW = 238 // e GO_NEXTW = 237 // w GO_FORWCH = 229 // f GO_PAIRCH = 228 // % GO_DEL = 219 // d HI_SRCH_FW = 209 // / HI_SRCH_BK = 208 // ? HI_SRCH_RFW = 207 // n HI_SRCH_RBK = 206 // N ) // should return number of octets ready to be read immediately //fprintf(stderr,"\n--Select(%v %v)\n",err,r.Bits[0]) var EventRecvFd = -1 // file descriptor var EventSendFd = -1 const EventFdOffset = 1000000 const NormalFdOffset = 100 /* 2020-1021 replaced poll() with channel/select func putKeyinEvent(event int, evarg int){ if true { if EventRecvFd < 0 { var pv = []int{-1,-1} syscall.Pipe(pv) EventRecvFd = pv[0] EventSendFd = pv[1] //fmt.Printf("--De-- EventPipe created[%v,%v]\n",EventRecvFd,EventSendFd) } }else{ if EventRecvFd < 0 { // the document differs from this spec // https://golang.org/src/syscall/syscall_unix.go?s=8096:8158#L340 sv,err := syscall.Socketpair(syscall.AF_UNIX,syscall.SOCK_STREAM,0) EventRecvFd = sv[0] EventSendFd = sv[1] if err != nil { fmt.Printf("--De-- EventSock created[%v,%v](%v)\n", EventRecvFd,EventSendFd,err) } } } var buf = []byte{ byte(event)} n,err := syscall.Write(EventSendFd,buf) if err != nil { fmt.Printf("--De-- putEvent[%v](%3v)(%v %v)\n",EventSendFd,event,n,err) } } */ func ungets(str string){ for _,ch := range str { putKeyinEvent(int(ch),0) } } func (gsh*GshContext)xReplay(argv[]string){ hix := 0 tempo := 1.0 xtempo := 1.0 repeat := 1 for _,a := range argv { // tempo if strBegins(a,"x") { fmt.Sscanf(a[1:],"%f",&xtempo) tempo = 1 / xtempo //fprintf(stderr,"--Dr-- tempo=[%v]%v\n",a[2:],tempo); }else if strBegins(a,"r") { // repeat fmt.Sscanf(a[1:],"%v",&repeat) }else if strBegins(a,"!") { fmt.Sscanf(a[1:],"%d",&hix) }else{ fmt.Sscanf(a,"%d",&hix) } } if hix == 0 || len(argv) <= 1 { hix = len(gsh.CommandHistory)-1 } fmt.Printf("--Ir-- Replay(!%v x%v r%v)\n",hix,xtempo,repeat) //dumpEvents(hix) //gsh.xScanReplay(hix,false,repeat,tempo,argv) go gsh.xScanReplay(hix,true,repeat,tempo,argv) runtime.Gosched(); // wait xScanReplay is launched //fmt.Printf("--Ir-- Replay set\n"); } // syscall.Select // 2020-0827 GShell-0.2.3 /* func FpollIn1(fp *os.File,usec int)(uintptr){ nfd := 1 rdv := syscall.FdSet {} fd1 := fp.Fd() bank1 := fd1/32 mask1 := int32(1 << fd1) rdv.Bits[bank1] = mask1 fd2 := -1 bank2 := -1 var mask2 int32 = 0 if 0 <= EventRecvFd { fd2 = EventRecvFd nfd = fd2 + 1 bank2 = fd2/32 mask2 = int32(1 << fd2) rdv.Bits[bank2] |= mask2 //fmt.Printf("--De-- EventPoll mask added [%d][%v][%v]\n",fd2,bank2,mask2) } tout := syscall.NsecToTimeval(int64(usec*1000)) //n,err := syscall.Select(nfd,&rdv,nil,nil,&tout) // spec. mismatch err := syscall.Select(nfd,&rdv,nil,nil,&tout) if err != nil { //fmt.Printf("--De-- select() err(%v)\n",err) } if err == nil { if 0 <= fd2 && (rdv.Bits[bank2] & mask2) != 0 { if false { fmt.Printf("--De-- got Event\n") } return uintptr(EventFdOffset + fd2) }else if (rdv.Bits[bank1] & mask1) != 0 { return uintptr(NormalFdOffset + fd1) }else{ return 1 } }else{ return 0 } } */ /* func fgetcTimeout1(fp *os.File,usec int)(int){ READ1: //readyFd := FpollIn1(fp,usec) readyFd := CFpollIn1(fp,usec) if readyFd < 100 { return EV_TIMEOUT } var buf [1]byte if EventFdOffset <= readyFd { fd := int(readyFd-EventFdOffset) _,err := syscall.Read(fd,buf[0:1]) if( err != nil ){ return EOF; }else{ if buf[0] == EV_MODE { recvKeyEvent(fd) goto READ1 } return int(buf[0]) } } _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } */ func visibleChar(ch int)(string){ switch { case '!' <= ch && ch <= '~': return string(ch) } switch ch { case ' ': return "\\s" case '\n': return "\\n" case '\r': return "\\r" case '\t': return "\\t" } switch ch { case 0x00: return "NUL" case 0x07: return "BEL" case 0x08: return "BS" case 0x0E: return "SO" case 0x0F: return "SI" case 0x1B: return "ESC" case 0x7F: return "DEL" } switch ch { case EV_IDLE: return fmt.Sprintf("IDLE") case EV_MODE: return fmt.Sprintf("MODE") } return fmt.Sprintf("%X",ch) } /* func recvKeyEvent(fd int){ var buf = make([]byte,1) _,_ = syscall.Read(fd,buf[0:1]) if( buf[0] != 0 ){ romkanmode = true }else{ romkanmode = false } } */ func (gsh*GshContext)xScanReplay(hix int,replay bool,repeat int,tempo float64,argv[]string){ var Start time.Time var events = []Event{} for _,e := range Events { if hix == 0 || e.CmdIndex == hix { events = append(events,e) } } elen := len(events) if 0 < elen { if events[elen-1].event == EV_IDLE { events = events[0:elen-1] } } for r := 0; r < repeat; r++ { for i,e := range events { nano := e.when.Nanosecond() micro := nano / 1000 if Start.Second() == 0 { Start = time.Now() } diff := time.Now().Sub(Start) if replay { if e.event != EV_IDLE { //fmt.Printf("--replay %v / %v event=%X\n",i,len(events),e.event); putKeyinEvent(e.event,0) if e.event == EV_MODE { // event with arg putKeyinEvent(int(e.evarg),0) } }else{ //fmt.Printf("--replay %v / %v idle=%X\n",i,len(events),e.event); } }else{ fmt.Printf("%7.3fms #%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n", float64(diff)/1000000.0, i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event), float64(e.evarg)/1000000.0) } if e.event == EV_IDLE { //fmt.Printf("--replay %v / %v delay\n",i,len(events)); d := time.Duration(float64(time.Duration(e.evarg)) * tempo) //nsleep(time.Duration(e.evarg)) nsleep(d) } } } } func dumpEvents(arg[]string){ hix := 0 if 1 < len(arg) { fmt.Sscanf(arg[1],"%d",&hix) } for i,e := range Events { nano := e.when.Nanosecond() micro := nano / 1000 //if e.event != EV_TIMEOUT { if hix == 0 || e.CmdIndex == hix { fmt.Printf("#%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n",i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event),float64(e.evarg)/1000000.0) } //} } } /* func fgetcTimeout(fp *os.File,usec int)(int){ ch := fgetcTimeout1(fp,usec) if ch != EV_TIMEOUT { now := time.Now() if 0 < len(Events) { last := Events[len(Events)-1] dura := int64(now.Sub(last.when)) Events = append(Events,Event{last.when,EV_IDLE,dura,last.CmdIndex}) } Events = append(Events,Event{time.Now(),ch,0,CmdIndex}) } return ch } */ // 2020-1021 replaced poll() with channel/select var Kbd = make(chan int); var Kbinit = false; var evQ = make(chan int); func keyInput(kbd chan int, fp *os.File){ for { ch := C.getc(C.stdin); if( ch == C.EOF ){ break; } kbd <- int(ch); } } func fgetcTimeout(fp *os.File,usec int)(int){ if( !Kbinit ){ Kbinit = true; go keyInput(Kbd,fp); } for { select { case <- time.After(time.Duration(usec*1000)): //fmt.Printf("--Timeout %v us\n",usec); return EV_TIMEOUT; case ch := <- Kbd: // record a Keyin(ch) Event { now := time.Now() if 0 < len(Events) { last := Events[len(Events)-1] dura := int64(now.Sub(last.when)) Events = append(Events,Event{last.when,EV_IDLE,dura,last.CmdIndex}) } Events = append(Events,Event{time.Now(),ch,0,CmdIndex}) } return ch; case ch := <- evQ: if( ch == EV_MODE ){ recvKeyEvent() }else{ return ch; } } } } func putKeyinEvent(event int, evarg int){ evQ <- event; } func recvKeyEvent(){ ch := <- evQ; if( ch != 0 ){ romkanmode = true }else{ romkanmode = false } } var AtConsoleLineTop = true var TtyMaxCol = 72 // to be obtained by ioctl? var EscTimeout = (100*1000) var ( MODE_VicMode bool // vi compatible command mode MODE_ShowMode bool romkanmode bool // shown translation mode, the mode to be retained MODE_Recursive bool // recursive translation MODE_CapsLock bool // software CapsLock MODE_LowerLock bool // force lower-case character lock MODE_ViInsert int // visible insert mode, should be like "I" icon in X Window MODE_ViTrace bool // output newline before translation ) type IInput struct { lno int lastlno int pch []int // input queue prompt string line string right string inJmode bool pinJmode bool waitingMeta string // waiting meta character LastCmd string } func (iin*IInput)Getc(timeoutUs int)(int){ ch1 := EOF ch2 := EOF ch3 := EOF if( 0 < len(iin.pch) ){ // deQ ch1 = iin.pch[0] iin.pch = iin.pch[1:] }else{ ch1 = fgetcTimeout(stdin,timeoutUs); } if( ch1 == 033 ){ /// escape sequence ch2 = fgetcTimeout(stdin,EscTimeout); if( ch2 == EV_TIMEOUT ){ }else{ ch3 = fgetcTimeout(stdin,EscTimeout); if( ch3 == EV_TIMEOUT ){ iin.pch = append(iin.pch,ch2) // enQ }else{ switch( ch2 ){ default: iin.pch = append(iin.pch,ch2) // enQ iin.pch = append(iin.pch,ch3) // enQ case '[': switch( ch3 ){ case 'A': ch1 = GO_UP; // ^ case 'B': ch1 = GO_DOWN; // v case 'C': ch1 = GO_RIGHT; // > case 'D': ch1 = GO_LEFT; // < case '3': ch4 := fgetcTimeout(stdin,EscTimeout); if( ch4 == '~' ){ //fprintf(stderr,"x[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); ch1 = DEL_RIGHT } } case '\\': //ch4 := fgetcTimeout(stdin,EscTimeout); //fprintf(stderr,"y[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); switch( ch3 ){ case '~': ch1 = DEL_RIGHT } } } } } return ch1 } func (inn*IInput)clearline(){ var i int fprintf(stderr,"\r"); // should be ANSI ESC sequence for i = 0; i < TtyMaxCol; i++ { // to the max. position in this input action fputc(' ',os.Stderr); } fprintf(stderr,"\r"); } func (iin*IInput)Redraw(){ redraw(iin,iin.lno,iin.line,iin.right) } func redraw(iin *IInput,lno int,line string,right string){ inMeta := false showMode := "" showMeta := "" // visible Meta mode on the cursor position showLino := fmt.Sprintf("!%d! ",lno) InsertMark := "" // in visible insert mode if MODE_VicMode { }else if 0 < len(iin.right) { InsertMark = " " } if( 0 < len(iin.waitingMeta) ){ inMeta = true if iin.waitingMeta[0] != 033 { showMeta = iin.waitingMeta } } if( romkanmode ){ //romkanmark = " *"; }else{ //romkanmark = ""; } if MODE_ShowMode { romkan := "--" inmeta := "-" inveri := "" if MODE_CapsLock { inmeta = "A" } if MODE_LowerLock { inmeta = "a" } if MODE_ViTrace { inveri = "v" } if MODE_VicMode { inveri = ":" } if romkanmode { romkan = "\343\201\202" if MODE_CapsLock { inmeta = "R" }else{ inmeta = "r" } } if inMeta { inmeta = "\\" } showMode = "["+romkan+inmeta+inveri+"]"; } Pre := "\r" + showMode + showLino Output := "" Left := "" Right := "" if romkanmode { Left = convs(line) Right = InsertMark+convs(right) }else{ Left = line Right = InsertMark+right } Output = Pre+Left if MODE_ViTrace { Output += iin.LastCmd } Output += showMeta+Right for len(Output) < TtyMaxCol { // to the max. position that may be dirty Output += " " // should be ANSI ESC sequence // not necessary just after newline } Output += Pre+Left+showMeta // to set the cursor to the current input position fprintf(stderr,"%s",Output) if MODE_ViTrace { if 0 < len(iin.LastCmd) { iin.LastCmd = "" fprintf(stderr,"\r\n") } } AtConsoleLineTop = false } // utf8 func delHeadChar(str string)(rline string,head string){ _,clen := utf8.DecodeRune([]byte(str)) head = string(str[0:clen]) return str[clen:],head } func delTailChar(str string)(rline string, last string){ var i = 0 var clen = 0 for { _,siz := utf8.DecodeRune([]byte(str)[i:]) if siz <= 0 { break } clen = siz i += siz } last = str[len(str)-clen:] return str[0:len(str)-clen],last } // 3> for output and history // 4> for keylog? // Command Line Editor func xgetline(lno int, prevline string, gsh*GshContext)(string){ var iin IInput iin.lastlno = lno iin.lno = lno CmdIndex = len(gsh.CommandHistory) if( isatty(0) == 0 ){ if( sfgets(&iin.line,LINESIZE,stdin) == NULL ){ iin.line = "exit\n"; }else{ } return iin.line } if( true ){ //var pts string; //pts = ptsname(0); //pts = ttyname(0); //fprintf(stderr,"--pts[0] = %s\n",pts?pts:"?"); } if( false ){ fprintf(stderr,"! "); fflush(stderr); sfgets(&iin.line,LINESIZE,stdin); return iin.line } system("/bin/stty -echo -icanon"); xline := iin.xgetline1(prevline,gsh) system("/bin/stty echo sane"); return xline } func (iin*IInput)Translate(cmdch int){ romkanmode = !romkanmode; if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); }else if( cmdch == 'J' ){ fprintf(stderr,"J\r\n"); iin.inJmode = true } iin.Redraw(); loadDefaultDic(cmdch); iin.Redraw(); } func (iin*IInput)Replace(cmdch int){ iin.LastCmd = fmt.Sprintf("\\%v",string(cmdch)) iin.Redraw(); loadDefaultDic(cmdch); dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" if( cmdch == 'I' ){ fprintf(stderr,"I\r\n"); iin.inJmode = true } iin.Redraw(); } // aa 12 a1a1 func isAlpha(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } return false } func isAlnum(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } if '0' <= ch && ch <= '9' { return true } return false } // 0.2.8 2020-0901 created // DecodeRuneInString func (iin*IInput)GotoTOPW(){ str := iin.line i := len(str) if i <= 0 { return } //i0 := i i -= 1 lastSize := 0 var lastRune rune var found = -1 for 0 < i { // skip preamble spaces lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if !isAlnum(lastRune) { // character, type, or string to be searched i -= lastSize continue } break } for 0 < i { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { continue } // not the character top if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i -= lastSize } if found < 0 && i == 0 { found = 0 } if 0 <= found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word i += lastSize } iin.right = str[i:] + iin.right if 0 < i { iin.line = str[0:i] }else{ iin.line = "" } } //fmt.Printf("\n(%d,%d,%d)[%s][%s]\n",i0,i,found,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoENDW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var lastW = 0 i := 0 inWord := false lastRune,lastSize = utf8.DecodeRuneInString(str[0:]) if isAlnum(lastRune) { r,z := utf8.DecodeRuneInString(str[lastSize:]) if 0 < z && isAlnum(r) { inWord = true } } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i // the last alnum if in alnum word i += lastSize } if inWord { goto DISP } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if isAlnum(lastRune) { // character, type, or string to be searched break } i += lastSize } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i i += lastSize } DISP: if 0 < lastW { iin.line = iin.line + str[0:lastW] iin.right = str[lastW:] } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoNEXTW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var found = -1 i := 1 for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i += lastSize } if 0 < found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word found += lastSize } iin.line = iin.line + str[0:found] if 0 < found { iin.right = str[found:] }else{ iin.right = "" } } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0902 created func (iin*IInput)GotoPAIRCH(){ str := iin.right if len(str) <= 0 { return } lastRune,lastSize := utf8.DecodeRuneInString(str[0:]) if lastSize <= 0 { return } forw := false back := false pair := "" switch string(lastRune){ case "{": pair = "}"; forw = true case "}": pair = "{"; back = true case "(": pair = ")"; forw = true case ")": pair = "("; back = true case "[": pair = "]"; forw = true case "]": pair = "["; back = true case "<": pair = ">"; forw = true case ">": pair = "<"; back = true case "\"": pair = "\""; // context depednet, can be f" or back-double quote case "'": pair = "'"; // context depednet, can be f' or back-quote // case Japanese Kakkos } if forw { iin.SearchForward(pair) } if back { iin.SearchBackward(pair) } } // 0.2.8 2020-0902 created func (iin*IInput)SearchForward(pat string)(bool){ right := iin.right found := -1 i := 0 if strBegins(right,pat) { _,z := utf8.DecodeRuneInString(right[i:]) if 0 < z { i += z } } for i < len(right) { if strBegins(right[i:],pat) { found = i break } _,z := utf8.DecodeRuneInString(right[i:]) if z <= 0 { break } i += z } if 0 <= found { iin.line = iin.line + right[0:found] iin.right = iin.right[found:] return true }else{ return false } } // 0.2.8 2020-0902 created func (iin*IInput)SearchBackward(pat string)(bool){ line := iin.line found := -1 i := len(line)-1 for i = i; 0 <= i; i-- { _,z := utf8.DecodeRuneInString(line[i:]) if z <= 0 { continue } //fprintf(stderr,"-- %v %v\n",pat,line[i:]) if strBegins(line[i:],pat) { found = i break } } //fprintf(stderr,"--%d\n",found) if 0 <= found { iin.right = line[found:] + iin.right iin.line = line[0:found] return true }else{ return false } } // 0.2.8 2020-0902 created // search from top, end, or current position func (gsh*GshContext)SearchHistory(pat string, forw bool)(bool,string){ if forw { for _,v := range gsh.CommandHistory { if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } }else{ hlen := len(gsh.CommandHistory) for i := hlen-1; 0 < i ; i-- { v := gsh.CommandHistory[i] if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } } //fprintf(stderr,"\n--De-- not-found(%v)\n",pat) return false,"(Not Found in History)" } // 0.2.8 2020-0902 created func (iin*IInput)GotoFORWSTR(pat string,gsh*GshContext){ found := false if 0 < len(iin.right) { found = iin.SearchForward(pat) } if !found { found,line := gsh.SearchHistory(pat,true) if found { iin.line = line iin.right = "" } } } func (iin*IInput)GotoBACKSTR(pat string, gsh*GshContext){ found := false if 0 < len(iin.line) { found = iin.SearchBackward(pat) } if !found { found,line := gsh.SearchHistory(pat,false) if found { iin.line = line iin.right = "" } } } func (iin*IInput)getstring1(prompt string)(string){ // should be editable iin.clearline(); fprintf(stderr,"\r%v",prompt) str := "" for { ch := iin.Getc(10*1000*1000) if ch == '\n' || ch == '\r' { break } sch := string(ch) str += sch fprintf(stderr,"%s",sch) } return str } // search pattern must be an array and selectable with ^N/^P var SearchPat = "" var SearchForw = true func (iin*IInput)xgetline1(prevline string, gsh*GshContext)(string){ var ch int; MODE_ShowMode = false MODE_VicMode = false iin.Redraw(); first := true for cix := 0; ; cix++ { iin.pinJmode = iin.inJmode iin.inJmode = false ch = iin.Getc(1000*1000) if ch != EV_TIMEOUT && first { first = false mode := 0 if romkanmode { mode = 1 } now := time.Now() Events = append(Events,Event{now,EV_MODE,int64(mode),CmdIndex}) } if ch == 033 { MODE_ShowMode = true MODE_VicMode = !MODE_VicMode iin.Redraw(); continue } if MODE_VicMode { switch ch { case '0': ch = GO_TOPL case '$': ch = GO_ENDL case 'b': ch = GO_TOPW case 'e': ch = GO_ENDW case 'w': ch = GO_NEXTW case '%': ch = GO_PAIRCH case 'j': ch = GO_DOWN case 'k': ch = GO_UP case 'h': ch = GO_LEFT case 'l': ch = GO_RIGHT case 'x': ch = DEL_RIGHT case 'a': MODE_VicMode = !MODE_VicMode ch = GO_RIGHT case 'i': MODE_VicMode = !MODE_VicMode iin.Redraw(); continue case '~': right,head := delHeadChar(iin.right) if len([]byte(head)) == 1 { ch = int(head[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.right = string(ch) + right } iin.Redraw(); continue case 'f': // GO_FORWCH iin.Redraw(); ch = iin.Getc(3*1000*1000) if ch == EV_TIMEOUT { iin.Redraw(); continue } SearchPat = string(ch) SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '/': SearchPat = iin.getstring1("/") // should be editable SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '?': SearchPat = iin.getstring1("?") // should be editable SearchForw = false iin.GotoBACKSTR(SearchPat,gsh) iin.Redraw(); continue case 'n': if SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue case 'N': if !SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue } } switch ch { case GO_TOPW: iin.GotoTOPW() iin.Redraw(); continue case GO_ENDW: iin.GotoENDW() iin.Redraw(); continue case GO_NEXTW: // to next space then iin.GotoNEXTW() iin.Redraw(); continue case GO_PAIRCH: iin.GotoPAIRCH() iin.Redraw(); continue } //fprintf(stderr,"A[%02X]\n",ch); if( ch == '\\' || ch == 033 ){ MODE_ShowMode = true metach := ch iin.waitingMeta = string(ch) iin.Redraw(); // set cursor //fprintf(stderr,"???\b\b\b") ch = fgetcTimeout(stdin,2000*1000) // reset cursor iin.waitingMeta = "" cmdch := ch if( ch == EV_TIMEOUT ){ if metach == 033 { continue } ch = metach }else /* if( ch == 'm' || ch == 'M' ){ mch := fgetcTimeout(stdin,1000*1000) if mch == 'r' { romkanmode = true }else{ romkanmode = false } continue }else */ if( ch == 'k' || ch == 'K' ){ MODE_Recursive = !MODE_Recursive iin.Translate(cmdch); continue }else if( ch == 'j' || ch == 'J' ){ iin.Translate(cmdch); continue }else if( ch == 'i' || ch == 'I' ){ iin.Replace(cmdch); continue }else if( ch == 'l' || ch == 'L' ){ MODE_LowerLock = !MODE_LowerLock MODE_CapsLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'u' || ch == 'U' ){ MODE_CapsLock = !MODE_CapsLock MODE_LowerLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'v' || ch == 'V' ){ MODE_ViTrace = !MODE_ViTrace if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'c' || ch == 'C' ){ if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) if len([]byte(tail)) == 1 { ch = int(tail[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.line = xline + string(ch) } } if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else{ iin.pch = append(iin.pch,ch) // push ch = '\\' } } switch( ch ){ case 'P'-0x40: ch = GO_UP case 'N'-0x40: ch = GO_DOWN case 'B'-0x40: ch = GO_LEFT case 'F'-0x40: ch = GO_RIGHT } //fprintf(stderr,"B[%02X]\n",ch); switch( ch ){ case 0: continue; case '\t': iin.Replace('j'); continue case 'X'-0x40: iin.Replace('j'); continue case EV_TIMEOUT: iin.Redraw(); if iin.pinJmode { fprintf(stderr,"\\J\r\n") iin.inJmode = true } continue case GO_UP: if iin.lno == 1 { continue } cmd,ok := gsh.cmdStringInHistory(iin.lno-1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno - 1 } iin.Redraw(); continue case GO_DOWN: cmd,ok := gsh.cmdStringInHistory(iin.lno+1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno + 1 }else{ iin.line = "" iin.right = "" if iin.lno == iin.lastlno-1 { iin.lno = iin.lno + 1 } } iin.Redraw(); continue case GO_LEFT: if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) iin.line = xline iin.right = tail + iin.right } iin.Redraw(); continue; case GO_RIGHT: if( 0 < len(iin.right) && iin.right[0] != 0 ){ xright,head := delHeadChar(iin.right) iin.right = xright iin.line += head } iin.Redraw(); continue; case EOF: goto EXIT; case 'R'-0x40: // replace dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" iin.Redraw(); continue; case 'T'-0x40: // just show the result readDic(); romkanmode = !romkanmode; iin.Redraw(); continue; case 'L'-0x40: iin.Redraw(); continue case 'K'-0x40: iin.right = "" iin.Redraw(); continue case 'E'-0x40: iin.line += iin.right iin.right = "" iin.Redraw(); continue case 'A'-0x40: iin.right = iin.line + iin.right iin.line = "" iin.Redraw(); continue case 'U'-0x40: iin.line = "" iin.right = "" iin.clearline(); iin.Redraw(); continue; case DEL_RIGHT: if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } continue; case 0x7F: // BS? not DEL if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } /* else if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } */ continue; case 'H'-0x40: if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } continue; } if( ch == '\n' || ch == '\r' ){ iin.line += iin.right; iin.right = "" iin.Redraw(); fputc(ch,stderr); AtConsoleLineTop = true break; } if MODE_CapsLock { if 'a' <= ch && ch <= 'z' { ch = ch+'A'-'a' } } if MODE_LowerLock { if 'A' <= ch && ch <= 'Z' { ch = ch+'a'-'A' } } iin.line += string(ch); iin.Redraw(); } EXIT: return iin.line + iin.right; } func getline_main(){ line := xgetline(0,"",nil) fprintf(stderr,"%s\n",line); /* dp = strpbrk(line,"\r\n"); if( dp != NULL ){ *dp = 0; } if( 0 ){ fprintf(stderr,"\n(%d)\n",int(strlen(line))); } if( lseek(3,0,0) == 0 ){ if( romkanmode ){ var buf [8*1024]byte; convs(line,buff); strcpy(line,buff); } write(3,line,strlen(line)); ftruncate(3,lseek(3,0,SEEK_CUR)); //fprintf(stderr,"outsize=%d\n",(int)lseek(3,0,SEEK_END)); lseek(3,0,SEEK_SET); close(3); }else{ fprintf(stderr,"\r\ngotline: "); trans(line); //printf("%s\n",line); printf("\n"); } */ } //== end ========================================================= getline // // $USERHOME/.gsh/ // gsh-rc.txt, or gsh-configure.txt // gsh-history.txt // gsh-aliases.txt // should be conditional? // func (gshCtx *GshContext)gshSetupHomedir()(bool) { homedir,found := userHomeDir() if !found { fmt.Printf("--E-- You have no UserHomeDir\n") return true } gshhome := homedir + "/" + GSH_HOME _, err2 := os.Stat(gshhome) if err2 != nil { err3 := os.Mkdir(gshhome,0700) if err3 != nil { fmt.Printf("--E-- Could not Create %s (%s)\n", gshhome,err3) return true } fmt.Printf("--I-- Created %s\n",gshhome) } gshCtx.GshHomeDir = gshhome return false } func setupGshContext()(GshContext,bool){ gshPA := syscall.ProcAttr { "", // the staring directory os.Environ(), // environ[] []uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, nil, // OS specific } cwd, _ := os.Getwd() gshCtx := GshContext { cwd, // StartDir "", // GetLine []GChdirHistory { {cwd,time.Now(),0} }, // ChdirHistory gshPA, []GCommandHistory{}, //something for invokation? GCommandHistory{}, // CmdCurrent false, []int{}, syscall.Rusage{}, "", // GshHomeDir Ttyid(), false, false, []PluginInfo{}, []string{}, " ", "v", ValueStack{}, GServer{"",""}, // LastServer "", // RSERV cwd, // RWD CheckSum{}, } err := gshCtx.gshSetupHomedir() return gshCtx, err } func (gsh*GshContext)gshelllh(gline string)(bool){ ghist := gsh.CmdCurrent ghist.WorkDir,_ = os.Getwd() ghist.WorkDirX = len(gsh.ChdirHistory)-1 //fmt.Printf("--D--ChdirHistory(@%d)\n",len(gsh.ChdirHistory)) ghist.StartAt = time.Now() rusagev1 := Getrusagev() gsh.CmdCurrent.FoundFile = []string{} fin := gsh.tgshelll(gline) rusagev2 := Getrusagev() ghist.Rusagev = RusageSubv(rusagev2,rusagev1) ghist.EndAt = time.Now() ghist.CmdLine = gline ghist.FoundFile = gsh.CmdCurrent.FoundFile /* record it but not show in list by default if len(gline) == 0 { continue } if gline == "hi" || gline == "history" { // don't record it continue } */ gsh.CommandHistory = append(gsh.CommandHistory, ghist) return fin } // Main loop func script(gshCtxGiven *GshContext) (_ GshContext) { gshCtxBuf,err0 := setupGshContext() if err0 { return gshCtxBuf; } gshCtx := &gshCtxBuf //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) //resmap() /* if false { gsh_getlinev, with_exgetline := which("PATH",[]string{"which","gsh-getline","-s"}) if with_exgetline { gsh_getlinev[0] = toFullpath(gsh_getlinev[0]) gshCtx.GetLine = toFullpath(gsh_getlinev[0]) }else{ fmt.Printf("--W-- No gsh-getline found. Using internal getline.\n"); } } */ ghist0 := gshCtx.CmdCurrent // something special, or gshrc script, or permanent history gshCtx.CommandHistory = append(gshCtx.CommandHistory,ghist0) prevline := "" skipping := false for hix := len(gshCtx.CommandHistory); ; { gline := gshCtx.getline(hix,skipping,prevline) if skipping { if strings.Index(gline,"fi") == 0 { fmt.Printf("fi\n"); skipping = false; }else{ //fmt.Printf("%s\n",gline); } continue } if strings.Index(gline,"if") == 0 { //fmt.Printf("--D-- if start: %s\n",gline); skipping = true; continue } if false { os.Stdout.Write([]byte("gotline:")) os.Stdout.Write([]byte(gline)) os.Stdout.Write([]byte("\n")) } gline = strsubst(gshCtx,gline,true) if false { fmt.Printf("fmt.Printf %%v - %v\n",gline) fmt.Printf("fmt.Printf %%s - %s\n",gline) fmt.Printf("fmt.Printf %%x - %s\n",gline) fmt.Printf("fmt.Printf %%U - %s\n",gline) fmt.Printf("Stouut.Write -") os.Stdout.Write([]byte(gline)) fmt.Printf("\n") } /* // should be cared in substitution ? if 0 < len(gline) && gline[0] == '!' { xgline, set, err := searchHistory(gshCtx,gline) if err { continue } if set { // set the line in command line editor } gline = xgline } */ fin := gshCtx.gshelllh(gline) if fin { break; } prevline = gline; hix++; } return *gshCtx } func main() { gshCtxBuf := GshContext{} gsh := &gshCtxBuf argv := os.Args if( isin("wss",argv) ){ gj_server(argv[1:]); return; } if( isin("wsc",argv) ){ gj_client(argv[1:]); return; } if 1 < len(argv) { if isin("version",argv){ gsh.showVersion(argv) return } if argv[1] == "gj" { if argv[2] == "listen" { go gj_server(argv[2:]); } if argv[2] == "server" { go gj_server(argv[2:]); } if argv[2] == "serve" { go gj_server(argv[2:]); } if argv[2] == "client" { go gj_client(argv[2:]); } if argv[2] == "join" { go gj_client(argv[2:]); } } comx := isinX("-c",argv) if 0 < comx { gshCtxBuf,err := setupGshContext() gsh := &gshCtxBuf if !err { gsh.gshellv(argv[comx+1:]) } return } } if 1 < len(argv) && isin("-s",argv) { }else{ gsh.showVersion(append(argv,[]string{"-l","-a"}...)) } script(nil) //gshCtx := script(nil) //gshelll(gshCtx,"time") } //
//
Considerations
// - inter gsh communication, possibly running in remote hosts -- to be remote shell // - merged histories of multiple parallel gsh sessions // - alias as a function or macro // - instant alias end environ export to the permanent > ~/.gsh/gsh-alias and gsh-environ // - retrieval PATH of files by its type // - gsh as an IME with completion using history and file names as dictionaies // - gsh a scheduler in precise time of within a millisecond // - all commands have its subucomand after "---" symbol // - filename expansion by "-find" command // - history of ext code and output of each commoand // - "script" output for each command by pty-tee or telnet-tee // - $BUILTIN command in PATH to show the priority // - "?" symbol in the command (not as in arguments) shows help request // - searching command with wild card like: which ssh-* // - longformat prompt after long idle time (should dismiss by BS) // - customizing by building plugin and dynamically linking it // - generating syntactic element like "if" by macro expansion (like CPP) >> alias // - "!" symbol should be used for negation, don't wast it just for job control // - don't put too long output to tty, record it into GSH_HOME/session-id/comand-id.log // - making canonical form of command at the start adding quatation or white spaces // - name(a,b,c) ... use "(" and ")" to show both delimiter and realm // - name? or name! might be useful // - htar format - packing directory contents into a single html file using data scheme // - filepath substitution shold be done by each command, expecially in case of builtins // - @N substition for the history of working directory, and @spec for more generic ones // - @dir prefix to do the command at there, that means like (chdir @dir; command) // - GSH_PATH for plugins // - standard command output: list of data with name, size, resouce usage, modified time // - generic sort key option -nm name, -sz size, -ru rusage, -ts start-time, -tm mod-time // -wc word-count, grep match line count, ... // - standard command execution result: a list of string, -tm, -ts, -ru, -sz, ... // - -tailf-filename like tail -f filename, repeat close and open before read // - max. size and max. duration and timeout of (generated) data transfer // - auto. numbering, aliasing, IME completion of file name (especially rm of quieer name) // - IME "?" at the top of the command line means searching history // - IME %d/0x10000/ %x/ffff/ // - IME ESC to go the edit mode like in vi, and use :command as :s/x/y/g to edit history // - gsh in WebAssembly // - gsh as a HTTP server of online-manual //---END--- (^-^)//ITS more
// var WorldDic = // "data:text/dic;base64,"+ "Ly8gTXlJTUUvMC4wLjEg6L6e5pu4ICgyMDIwLTA4MTlhKQpzZWthaSDkuJbnlYwKa28g44GT"+ "Cm5uIOOCkwpuaSDjgasKY2hpIOOBoQp0aSDjgaEKaGEg44GvCnNlIOOBmwprYSDjgYsKaSDj"+ "gYQK"; // var WnnDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL2Rp"+ "Y3ZlcglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNXbm5ccy8vXHMyMDIwLTA4MzAK"+ "R1NoZWxsCUdTaGVsbArjgo/jgZ/jgZcJ56eBCndhdGFzaGkJ56eBCndhdGFzaQnnp4EK44Gq"+ "44G+44GICeWQjeWJjQpuYW1hZQnlkI3liY0K44Gq44GL44GuCeS4remHjgpuYWthbm8J5Lit"+ "6YeOCndhCeOCjwp0YQnjgZ8Kc2kJ44GXCnNoaQnjgZcKbm8J44GuCm5hCeOBqgptYQnjgb4K"+ "ZQnjgYgKaGEJ44GvCm5hCeOBqgprYQnjgYsKbm8J44GuCmRlCeOBpwpzdQnjgZkKZVxzCWVj"+ "aG8KZGljCWRpYwplY2hvCWVjaG8KcmVwbGF5CXJlcGxheQpyZXBlYXQJcmVwZWF0CmR0CWRh"+ "dGVccysnJVklbSVkLSVIOiVNOiVTJwp0aW9uCXRpb24KJXQJJXQJLy8gdG8gYmUgYW4gYWN0"+ "aW9uCjwvdGV4dGFyZWE+Cg==" // var SumomoDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTdW1vbW9ccy8vXHMyMDIwLTA4MzAK"+ "c3UJ44GZCm1vCeOCggpubwnjga4KdQnjgYYKY2hpCeOBoQp0aQnjgaEKdWNoaQnlhoUKdXRp"+ "CeWGhQpzdW1vbW8J44GZ44KC44KCCnN1bW9tb21vCeOBmeOCguOCguOCggptb21vCeahgwpt"+ "b21vbW8J5qGD44KCCiwsCeOAgQouLgnjgIIKPC90ZXh0YXJlYT4K" // var SijimiDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTaGlqaW1pXHMvL1xzMjAyMC0wODMw"+ "CnNpCeOBlwpzaGkJ44GXCmppCeOBmAptaQnjgb8KbmEJ44GqCmp1CeOBmOOChQp4eXUJ44KF"+ "CnUJ44GGCm5pCeOBqwprbwnjgZMKYnUJ44G2Cm5uCeOCkwpubwnjga4KY2hpCeOBoQp0aQnj"+ "gaEKa2EJ44GLCnJhCeOCiQosLAnjgIEKLi4J44CCCnhuYW5hCeS4gwp4anV1CeWNgQp4bmkJ"+ "5LqMCmtveAnlgIsKa29xCeWAiwprb3gJ5YCLCm5hbmFqdXVuaXgJNzIKbmFuYWp1dW5peHgJ"+ "77yX77ySCm5hbmFqdXVuaVgJ77yX77ySCuS4g+WNgeS6jHgJNzIKa29idW5uCeWAi+WIhgp0"+ "aWthcmFxCeOBoeOBi+OCiQp0aWthcmEJ5YqbCmNoaWthcmEJ5YqbCjwvdGV4dGFyZWE+Cg=" // var JA_JKLDic = // "data:text/dic;base64,"+ "Ly92ZXJsCU15SU1FamRpY2ptb3JzZWpKQWpKS0woMjAyMGowODE5KSheLV4pL1NhdG94SVRT"+ "CmtqamprbGtqa2tsa2psIOS4lueVjApqamtqamwJ44GCCmtqbAnjgYQKa2tqbAnjgYYKamtq"+ "amwJ44GICmtqa2trbAnjgYoKa2pra2wJ44GLCmpramtrbAnjgY0Ka2tramwJ44GPCmpramps"+ "CeOBkQpqampqbAnjgZMKamtqa2psCeOBlQpqamtqa2wJ44GXCmpqamtqbAnjgZkKa2pqamts"+ "CeOBmwpqamprbAnjgZ0KamtsCeOBnwpra2prbAnjgaEKa2pqa2wJ44GkCmtqa2pqbAnjgaYK"+ "a2tqa2tsCeOBqApramtsCeOBqgpqa2prbAnjgasKa2tra2wJ44GsCmpqa2psCeOBrQpra2pq"+ "bAnjga4Kamtra2wJ44GvCmpqa2tqbAnjgbIKampra2wJ44G1CmtsCeOBuApqa2tsCeOBuwpq"+ "a2tqbAnjgb4Ka2tqa2psCeOBvwpqbAnjgoAKamtra2psCeOCgQpqa2tqa2wJ44KCCmtqamwJ"+ "44KECmpra2pqbAnjgoYKampsCeOCiApra2tsCeOCiQpqamtsCeOCigpqa2pqa2wJ44KLCmpq"+ "amwJ44KMCmtqa2psCeOCjQpqa2psCeOCjwpramtramwJ44KQCmtqamtrbAnjgpEKa2pqamwJ"+ "44KSCmtqa2prbAnjgpMKa2pqa2psCeODvApra2wJ44KbCmtramprbAnjgpwKa2pramtqbAnj"+ "gIEK"; // // /*
References
*/ /*
Raw Source
Whole file
CSS part
JavaScript part
Builtin data part
*/ /*
(^_^)//{Hit j k l h}
CLOSE
*/ /*
GJ Console

*/ /*
Form Auto. Filling
Location: Username: Password: SessionId:
*/ /*
BlinderText // https://w3c.github.io/uievents/#event-type-keydown // // 2020-09-21 class BlinderText - textarea element not to be readable // // BlinderText attributes // bl_plainText - null // bl_hideChecksum - [false] // bl_showLength - [false] // bl_visible - [false] // data-bl_config - [] // - min. length // - max. length // - acceptable charset in generete text // function BlinderChecksum(text){ plain = text.bl_plainText; return strCRC32(plain,plain.length).toFixed(0); } function BlinderKeydown(ev){ pass = ev.target if( ev.code == 'Enter' ){ ev.preventDefault(); } ev.stopPropagation() } function BlinderKeyup1(ev){ blind = ev.target if( ev.code == 'Backspace'){ blind.bl_plainText = blind.bl_plainText.slice(0,blind.bl_plainText.length-1) }else if( and(ev.code == 'KeyV', ev.ctrlKey) ){ blind.bl_visible = !blind.bl_visible; }else if( and(ev.code == 'KeyL', ev.ctrlKey) ){ blind.bl_showLength = !blind.bl_showLength; }else if( and(ev.code == 'KeyU', ev.ctrlKey) ){ blind.bl_plainText = ""; }else if( and(ev.code == 'KeyR', ev.ctrlKey) ){ checksum = BlinderChecksum(blind); blind.bl_plainText = checksum; //.toString(32); }else if( ev.code == 'Enter' ){ ev.stopPropagation(); ev.preventDefault(); return; }else if( ev.key.length != 1 ){ console.log('KeyUp: '+ev.code+'/'+ev.key); return; }else{ blind.bl_plainText += ev.key; } leng = blind.bl_plainText.length; //console.log('KeyUp: '+ev.code+'/'+blind.bl_plainText); checksum = BlinderChecksum(blind) % 10; // show last one digit only visual = ''; if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '['; } if( !blind.bl_hideCheckSum ){ visual += '#'+checksum.toString(10); } if( blind.bl_showLength ){ visual += '/' + leng; } if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '] '; } if( blind.bl_visible ){ visual += blind.bl_plainText; }else{ visual += '*'.repeat(leng); } blind.value = visual; } function BlinderKeyup(ev){ BlinderKeyup1(ev); ev.stopPropagation(); } // https://w3c.github.io/uievents/#keyboardevent // https://w3c.github.io/uievents/#uievent // https://dom.spec.whatwg.org/#event function BlinderTextEvent(){ ev = event; blind = ev.target; console.log('Event '+ev.type+'@'+blind.nodeName+'#'+blind.id) if( ev.type == 'keyup' ){ BlinderKeyup(ev); }else if( ev.type == 'keydown' ){ BlinderKeydown(ev); }else{ console.log('thru-event '+ev.type+'@'+blind.nodeName+'#'+blind.id) } } //< textarea hidden id="BlinderTextClassDef" class="textField"" // onkeydown="BlinderTextEvent()" onkeyup="BlinderTextEvent()" // spellcheck="false">< /textarea> //< textarea hidden id="gj_pass1" // class="textField BlinderText" // placeholder="PassWord1" // onkeydown="BlinderTextEvent()" // onkeyup="BlinderTextEvent()" // spellcheck="false"< /textarea> function SetupBlinderText(parent,txa,phold){ if( txa == null ){ txa = document.createElement('textarea'); //txa.id = id; } txa.setAttribute('class','textField BlinderText'); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','BlinderTextEvent()'); txa.setAttribute('onkeyup','BlinderTextEvent()'); txa.setAttribute('spellcheck','false'); //txa.setAttribute('bl_plainText','false'); txa.bl_plainText = ''; //parent.appendChild(txa); } function DestroyBlinderText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); txa.bl_plainText = ''; } // // visible textarea like Username // function VisibleTextEvent(){ if( event.code == 'Enter' ){ if( event.target.NoEnter ){ event.preventDefault(); } } event.stopPropagation(); } function SetupVisibleText(parent,txa,phold){ if( false ){ txa.setAttribute('class','textField VisibleText'); }else{ newclass = txa.getAttribute('class'); if( and(newclass != null, newclass != '') ){ newclass += ' '; } newclass += 'VisibleText'; txa.setAttribute('class',newclass); } //console.log('SetupVisibleText class='+txa.class); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','VisibleTextEvent()'); txa.setAttribute('onkeyup', 'VisibleTextEvent()'); txa.setAttribute('spellcheck','false'); cols = txa.getAttribute('cols'); if( cols != null ){ txa.style.width = '580px'; //console.log('VisualText#'+txa.id+' cols='+cols) }else{ //console.log('VisualText#'+txa.id+' NO cols') } rows = txa.getAttribute('rows'); if( rows != null ){ txa.style.height = '30px'; txa.style.resize = 'both'; txa.NoEnter = false; }else{ txa.NoEnter = true; } } function DestroyVisibleText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); cols = txa.removeAttribute('cols'); }
*/ /* */ // //
Golang / JavaScript Link // // 2020-0920 created // WS // WS // INSTALL: go get golang.org/x/net/websocket // INSTALL: sudo {apt,yum} install git (if git is not instlled yet) // import "golang.org/x/net/websocket" const gshws_origin = "http://locahost:9999" const gshws_server = "localhost:9999" const gshws_port = 9999 const gshws_path = "gjlink1" const gshws_url = "ws://"+gshws_server+"/"+gshws_path const GSHWS_MSGSIZE = (8*1024) func fmtstring(fmts string, params ...interface{})(string){ return fmt.Sprintf(fmts,params...) } func GSHWS_MARK(what string)(string){ now := time.Now() us := fmtstring("%06d",now.Nanosecond() / 1000) mark := "" if( !AtConsoleLineTop ){ mark += "\n" AtConsoleLineTop = true } mark += "["+now.Format(time.Stamp)+"."+us+"] -GJ-" + what + ": " return mark } func gchk(what string,err error){ if( err != nil ){ panic(GSHWS_MARK(what)+err.Error()) } } func glog(what string, fmts string, params ...interface{}){ fmt.Print(GSHWS_MARK(what)) fmt.Printf(fmts+"\n",params...) } var WSV = []*websocket.Conn{} func jsend(argv []string){ if len(argv) <= 1 { fmt.Printf("--Ij %v [-m] command arguments\n",argv[0]) return } argv = argv[1:] if( len(WSV) == 0 ){ fmt.Printf("--Ej-- No link now\n") return } if( 1 < len(WSV) ){ fmt.Printf("--Ij-- multiple links (%v)\n",len(WSV)) } multicast := false // should be filtered with regexp if( 0 < len(argv) && argv[0] == "-m" ){ multicast = true argv = argv[1:] } args := strings.Join(argv," ") now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) msg := fmtstring("%v SEND gshell|* %v",tstamp,args) if( multicast ){ for i,ws := range WSV { wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } }else{ i := 0 ws := WSV[i] wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } } func ws_broadcast(msg string)(wn int,werr error){ for i,ws := range WSV { wn,werr = ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } return wn,werr; } func serv1(ws *websocket.Conn) { WSV = append(WSV,ws) //fmt.Print("\n") glog("CO","accepted connections[%v]",len(WSV)) //remoteAddr := ws.RemoteAddr //fmt.Printf("-- accepted %v\n",remoteAddr) //fmt.Printf("-- accepted %v\n",ws.Config()) //fmt.Printf("-- accepted %v\n",ws.Config().Header) //fmt.Printf("-- accepted %v // %v\n",ws,serv1) var reqb = make([]byte,GSHWS_MSGSIZE) for { rn, rerr := ws.Read(reqb) if( rerr != nil || rn < 0 ){ glog("SQ",fmtstring("(%v,%v)",rn,rerr)) break } req := string(reqb[0:rn]) glog("SQ",fmtstring("(%v) %v",rn,req)) margv := strings.Split(req," "); margv = margv[1:] if( 0 < len(margv) ){ if( margv[0] == "RESP" ){ // should forward to the destination continue; } } now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) res := fmtstring("%v "+"CAST"+" %v",tstamp,req) wn := 0; werr := error(nil); if( 0 < len(margv) && margv[0] == "BCAST" ){ wn, werr = ws_broadcast(res); }else{ wn, werr = ws.Write([]byte(res)) } gchk("SE",werr) glog("SR",fmtstring("(%v) %v",wn,string(res))) } glog("SF","WS response finish") wsv := []*websocket.Conn{} wsx := 0 for i,v := range WSV { if( v != ws ){ wsx = i wsv = append(wsv,v) } } WSV = wsv //glog("CO","closed %v",ws) glog("CO","closed connection [%v/%v]",wsx+1,len(WSV)+1) ws.Close() } // url ::= [scheme://]host[:port][/path] func decomp_URL(url string){ } func full_wsURL(){ } func gj_server(argv []string) { gjserv := gshws_url gjport := gshws_server gjpath := gshws_path gjscheme := "ws" //cmd := argv[0] argv = argv[1:] if( 1 <= len(argv) ){ serv := argv[0] if( 0 < strings.Index(serv,"://") ){ schemev := strings.Split(serv,"://") gjscheme = schemev[0] serv = schemev[1] } if( 0 < strings.Index(serv,"/") ){ pathv := strings.Split(serv,"/") serv = pathv[0] gjpath = pathv[1] } servv := strings.Split(serv,":") host := "localhost" port := 9999 if( servv[0] != "" ){ host = servv[0] } if( len(servv) == 2 ){ fmt.Sscanf(servv[1],"%d",&port) } //glog("LC","hostport=%v (%v : %v)",servv,host,port) gjport = fmt.Sprintf("%v:%v",host,port) gjserv = gjscheme + "://" + gjport + "/" + gjpath } glog("LS",fmtstring("listening at %v",gjserv)) http.Handle("/"+gjpath,websocket.Handler(serv1)) err := error(nil) if( gjscheme == "wss" ){ // https://golang.org/pkg/net/http/#ListenAndServeTLS //err = http.ListenAndServeTLS(gjport,nil) }else{ err = http.ListenAndServe(gjport,nil) } gchk("LE",err) } func gj_client(argv []string) { glog("CS",fmtstring("connecting to %v",gshws_url)) ws, err := websocket.Dial(gshws_url,"",gshws_origin) gchk("C",err) var resb = make([]byte, GSHWS_MSGSIZE) for qi := 0; qi < 3; qi++ { req := fmtstring("Hello, GShell! (%v)",qi) wn, werr := ws.Write([]byte(req)) glog("QM",fmtstring("(%v) %v",wn,req)) gchk("QE",werr) rn, rerr := ws.Read(resb) gchk("RE",rerr) glog("RM",fmtstring("(%v) %v",rn,string(resb))) } glog("CF","WS request finish") } // //
/* */ /* */ /*
Live HTML Snapshot
Edit Save Load Vers
*/ /*
Event sharing

Inter-window communicaiton

frame0 >>> frame1 and frame2
frame1 >>> frame0 and frame2
frame2 >>> frame0 and frame1




*/ /* // /*
Wirtual Desktop

CosmoScreen 0.0.8

ScopeControl command keys
g ... grid on/off
i ... zoom in
o ... zoom out
s ... save current scope
r ... restore saved scope

Monitor < x wall-paper: WD-WallPaler03.png

Desktop < x

Display < x < <

Content X Y shift+wheel for horizontal scroll

Scopexx < | >

Scopeyy < | >

Scopezz < | >

Display

Overflo "scroll" imprisons windows inside the display

CosmoScreen 0.0.8
00:00

WirtualSpace 1.

Reload
Reload
Reload
*/ //
// // /*
SBSidebar

SBSidebar

// 2020-1006 its-more.jp-blog-60000-style.css
*/ //
// // // /*
Affiliate

Supportive Affiliate

*/ //
// // // /*
Font Selector

Font Selection

Drawing Text on Canvas

Pixels Bold Italic

*/ //
// // // /*
Shading Canvas

Shading Canvas

Commands
Placement Mode
a ... apply (into absolute position)
j ... bring down (ArrowDown)
k ... bring up (ArrowUp)
h ... bring left (ArrowLeft)
l ... bring right (ArrowRight)
0 ... z-index = 0
+ ... z-index += 1
- ... z-index -= 1
r ... return to here (relative position)
c ... clear the log text
Note: the HTML text must be contenteditable to catch Key Event.
My Canvas.
*/ //
// // // /*
Character Map

Unicode Character Map

code 0x0000 - 0xFFFF / 16px / 3200 x 3200 px / zoom:0.25

*/ //
// // // /*
Collaborated Pointillism

Collaborated Pointillism

Share
XY1 XY1-remote XY2 XY2-remote

*/ //
// // // /*
StatCounter

StatCounter

hit counter (counter as image tag)
(counter by inline script)
*/ //
// // // /*
Work Template

Template of Work

*/ //
// // // /*
Original Source

Original Source of GShell

*/ //
// //
//
//1831533178 355613 gsh (2020/09/22 02:25:14)

WebSurkit // ウェブ・サーキット

開発:Windows 対応ですが、方針を転換したいと思います。

社長:ほお。

開発:Windows依存部分をCGoに隔離する作戦でしたが、これをやるとUnix部分も同様に隔離して対等にする必要があります。そうすると、Unix間での互換性の問題が生じてしまいます。

社長:Goの部分で#ifdef 的な事は出来ないんですね。部分的にコンパイル対象から外すという。

開発:オリジナルGoでは出来ないようです。ビルド時にオプションを付けるとか、ファイルを分けるとかする必要があるような。単一の.goファイルに一切がっさい突っ込みたいといううちの方針に反します。

開発:そうすると考えられるのは、Goプログラムの中にデータとしてWindows依存部分を保持しておいて、実行時にコンパイルしてプラグインとして動的リンクする方法です。プラグインは以前に試して問題ありませんでした。

社長:コンパイル処理自体がGoのパッケージになっていると良いですね。コンパイルするか否かはコードの電子署名を元に判断する。まあ、自分自身と同じ署名がされてたら問題ないでしょう。

開発:動的リンクする時に署名情報を突き合わせれば、セキュリティ上の問題はクリアできると思います。

基盤:HTMLやJavaScriptのようにコメントとして埋め込むというのは?

開発:実行時にコメント部分が見えると良いのですけどね。デバッガでは見えるんだとすると、ソースコードがバイナリに埋め込まれてる形式もあるのではないかと思いますが。

社長:Evalは使えないんでしょうか?

開発:Eval ... 計算くらいにしか使ったことがないですね。CGoをevalとか、凄く無理っぽいですが… ちょっと調べてみます。

開発:あー、前に使ってみたのは types.Eval というやつなんですが、これはまさに定数のexpressionしか評価してくれないですね。パッケージ名typesってあるように、もともと型を評価するためのもののようです。

社長:まあ実行性能を命を掛けてるコンパイル言語ですしね。

開発:インタープリタを作っている人もいるようですけどね。https://golang.org/pkg/go/ のparserで抽象構文木にまでは落とせるようですから、あとは木を追っかけて実行すればイケるのかなとは思います。

社長:私が学生時代に作ったCインタプリタもそれ式でした。インタプリタの処理をその言語自体で書けるので、一番簡単な実現方法だと思っています。例えば、if分の構文木はif文で処理すれば良いといった具合です。

基盤:抽象構文木(AST)からバイナリに落とすところはパッケージになってないんでしょうか?

開発:検索… その答えではないですが、Goの処理系がソースからバイナリまで変換する流れを解説した記事がありますね。

開発:2年前なのでちょっと古いですが、こういう基本的な部分は変わってないと思います。

社長:これ、抽象構文木レベルでいじると、DOMみたいに色々作り変えられますよね。構造エディタを作るためのベースも完備しているように見えます。

開発:ブラウザ上のJavaScriptと通信するGoプログラムでGoの構造エディタを作って、その場でインタープリットしたり、性能重視の部分は作成したコードをbuildに送ってバイナリにして動的リンクして実行する。完璧なツールチェーンですね。

社長:性能が命がベースにあるのは良いのですが、性能はどうでも良い部分というのも有るんですよね。動的な設定とか移植性のほうが重要とか。その部分を別の言語で書かなければならないというのはどうにも歯がゆい。

開発:ブラウザでの処理はDOMと密着したJavaScriptでもう確定だと思うんです。問題は、手元のマシンに密着した処理をどう行うか。

社長:ある種の簡単な仮想マシンを定義してやるとよいのかもですね。仮想ファイルシステムでも良いかもですが。

基盤:ファイルならNFSでっていう手はありますよね。

社長:ローカルマシン内にアクセスするにはプロトコルが無駄に重いと思いますが、抽象ファイルシステムとして、操作可能なメタ情報としてはNFSのを参考にするのが良いように思います。

開発:そのなると、syscallとかいう生操作ではなくて、逆に思い切り抽象的な仮想なんちゃらクラスを作って、そこにパッケージすることになりますね。

社長:Windows対応で引っかかってるのってなんでしたっけ?

開発:ファイルのメタ情報と、CPUとかのリソース使用状況の取得です。あと外部コマンドのfork/execがありますが、これはUnixの間でほぼ差異が無いと思いますから、CGoで書いても良いかなと。goルーチンに何かプラスするか、そもそもプロセスを実行するサーバ的なものは分けたほうが良い気がしなくもありません。

基盤:抽象マシンサーバ的なものは分けて、WebSocketでアクセスすることにすると、JavaScriptからも共通の方法でアクセスできて、一石二鳥ですね。

社長:抽象マシンってくらですから、プロセスであってもGoルーチンであってもただのライブラリであってもなんでも良いですね。

開発:考えてみたらGoにはRPCパッケージがあります。これはまさに仮想マシンのインターフェイスだと思います。実マシンのRPCサーバともシームレスです。

社長:RPCで受けてsyscallで実行すると。

基盤:コネクションはWebSocketでデータはXDRとかで流すっていうのもアリではないかと。

開発:うーん。動的リンクでやるよりスジは良いですね。断然面白いし。セキュアにしやすいし。

社長:イメージとしては、リモートシステムコール、パッケージ rsyscall ですかね。

基盤:abstract で asyscall か、virtual で vsyscall とか。

開発:考えてみたら、4月に試作した ITSTP はそれでした。あれをGoで実装する。

社長:朝から色々考えたので、お腹がすいてしましました。食事してきます。

* * *

社長:ただいまぁ。くったくった。

命名:ウェブサーキット

開発:ふぁぁ… 寝た。

基盤:昨日の筋肉疲労が残ってますかね。

開発:まる1日、間違った方向に走ってしまった感が疲労感を増します。

社長:それもまたひとつの経験。

社長:あーそれで、お昼を食べながら思ったのですが、「サーキット」という言葉を使いたいなと。

基盤:最近、ホンダが F1からまた抜けるって話題をよく見かけます。

開発:まあ今回はガソリンエンジンの終焉という本質的な局面かも知れないですね。

社長:Fの赤木軍馬は上州出身なんですかね?あーこの「人里離れた山奥の粗末な小屋で極貧生活」てイメージから来たのかなw

基盤:筑波サーキットにも来てますね。

社長:ストーリーはほとんど記憶にないんですが、タモツのアイデアで、サメ肌のペイントで空気抵抗を減らすっていうネタだけは覚えています。

開発:GJリンクよりGJサーキットのほうがかっこいいですね。

基盤:集積回路って感じですよね。

社長:そのGJというのもやめてですね、ウェブサーキットにしようかなと。というのは、これは実装がWebSocketになることは確実です。で、ソケットとサーキットは読みがとても似ているなと思ったわけです。たぶん英語読みでは。

基盤:Google翻訳に読ませてみましょう。

基盤:ウェブ酒って聞こえます。サーキットのほうは少しウェブ咲きっぽいですけど。

開発:「サ」の強弱だけみたいな。発音記号の表記は…

circuit : ˈsərkət
socket : ˈsäkət

基盤:発音記号一覧… おっと、この人のはこの10/12に更新されてますね。

基盤:Wikipedia… なるほど、このアタマにあるクオートみたいのは第一ストレスですね。この、aのアタマに点々が乗ってるのは「非円唇中舌広母音」なるものだそうで、日本語だと「朝」のasaがこれになるそうです。

開発:私はこれを突然聞かされて、比較せずにどっちだって言われたら、わからない自信があります。

社長:じゃま、日本語表記はウェブサーキット、読みはウェブソケ?くらいで行きましょう。

基盤:ウェブ宗家みたいですねw

命名:WebSurkit

社長:さて、それで綴りなんですが。やはりドメイン名にしたいので、使えるのはASCIIで英数字とハイフンだけという事になります。

基盤:webcircuit も web-circuit も取られてますね。

開発:そもそもサークがcircって、サークルとかサーカスと同源なんですかね。イマイチぱっとは出てこない綴りです。

社長:わたし的には上の意味のsurが好きかな。シュールな感じ。吹っ切れた感じ。

開発:敬称のサーだとSirですね。

基盤:愛ちゃんのサーっていうのもありますね。綴りは不明ですが。

開発:キットの部分もcuitもちょっとすんなり出てこないですね。フランス語ですかね。

基盤:キットといえばkitですよね。

社長:まあ、我々は子供の頃からキットという言葉が大好きです。

基盤:マッキントッシュのKitCut。あ、KitKat ですか。

開発:そうそう、合格祈願グッズだったりするんですよね。きっと勝つで。

社長:「超キット」って、なんかスゴイものが組み立てられそうですねw

基盤:Google翻訳に読ませてみましょう。

開発:どれも読みはサーキットですね。

社長:では、表記はWebSurkit に決定します。.com が240円で .net が140円、のはず… ですよね?

経理:確認しました。

社長:では、「次へ」。で「申し込む」をぽちっ。

iMac:ぽーん。

基盤:いつものSPAM風確認メールが来たもよう。では、ネームサーバ変更ぷちぷちっ。でWebサーバで確認。

社長:確認。

開発:玄関開けたら2分でごはんですね。

基盤:いつか快進撃すると良いですね。

社長:何らかのサーキットブレーカーを仕込みたいですね。

* * *

社長:タバコ買ってきました。で、この際GShellという名前も見直そうかなと思っています。

開発:そうだShellを作ろうから、だいぶスコープが変わりましたしね。

社長:で、パック、ワンパックを軸に検討したいと思います。

基盤:オールインワンパッケージですね。package one みたいな。

開発:パックといえばJALパック、たくましく育って欲しい、パックインミュージック、パックマン、あたりですね。

社長:それで検索したんですが、パックインミュージックのパックてPuckというんだそうです。いたずら小僧的な。

開発:パックと言えば小島一慶でしたっけね。ギルバート・オー・サリバンとか言ってたのを覚えています。

基盤:今年の4月に亡くなったみたいです。

開発:へー。パックマンてずっとpacman かと思ってたんですが、puckmanという時代もあったみたいですね。

「当初、英文での表記はPUCKMANだったが、Pの文字の一部を削りFにしてしまういたずらを懸念したミッドウェイ社がPAC-MANに改めるようナムコに頼んだという。」
https://ja.wikipedia.org/wiki/%E3%83%91%E3%83%83%E3%82%AF%E3%83%9E%E3%83%B3

社長、基盤:www

開発:筑波山の見えるゲーセンでのめってたら朝日が登ってきたのを思い出します。アルプスショップ?

社長:スペースインベーダーとパックマンは青春ですね。

基盤:まあでも、onepack も onepuck も取られてますけど。

社長:wonepack とかってどうですかね。勝ったどー、ウェブ的な。

基盤:どちらでもワンパクですね。をねぱck。

開発:wwwonepack とかw3onepackとかは?

基盤:onepack-www.net とか。高笑い的なw。

社長:説明的過ぎるのはどうかなと思います。まあ、こっちの件は時間を掛けて考えましょう。

* * *

-- 2020-1020 SatoxITS

Go言語入門

社長:はぁ… っクション。

基盤:大魔王。

開発:昔は誰かがくしゃみをすると必ずその相の手が入りましたね。

基盤:朝方より暖かくなったと思いますが、現在、室温20.3度です。

社長:何か一枚羽織るとちょうど快適な感じになる気温ですね。

開発:ただ、今週いつからか既に、ちょっと手がかじかむ感じが始まっています。

経理:指先だけ出ている手袋とかってありますよね。掌のタコ対策にもなると思います。

基盤:ちょっとした暖房ならUSBファンヒーターとか無いですかね。手元だけなら1Wくらいで十分な気もしますが。

社長:咽喉の粘膜が乾くとヤバいと思います。

開発:お一人様用の加湿器を買いましょうか。部屋全体を加湿する必要は全然ないと思います。

経理:マスクをかけるという手段もありますね。花粉症対策にもなります。

社長:気持ちが悪いので却下。

開発:思うに、ヒーターを仕込んだマウスパッドがあれば良いのではないでしょうか?ほかほかマウスパッド。そもそもマウス自体が暖かくなるという手もあります。

社長:それは効率的ですね。

基盤:有線マウスにするか、マウスパッドからの非接触給電ていう形ですね。

社長:でも、もう一方の手は?

基盤:キーボードにヒーターを仕込むんじゃないですかね。

開発:そもそもマウスだけか片手だけで全てが操作できる状態が長時間継続できれば、もう片手は懐で温めるとかできますよね。

経理:ほかほかになるUSBリストレストがあると良さそうです。

基盤:というか、触ってみたら、MacMiniは今もかなり排熱してますね。あれの排気口を手元に誘致するというのはどうでしょう。

経理:粘膜が乾燥しそうです。

開発:排気口の前に濡れタオルか何か垂らして加湿器にすると良いと思います。昔エアコンの吹出口でやってましたが、一日に5リットル以上蒸発してました。

社長:細いホースで自作の給水路を作って蛇口から給水してましたね。まああのころは暖房に2万円掛かっても気にしないような生活スタイルでした。

開発:年をとるとヒートショックも気になります。

基盤:赤いちゃんちゃんことかどうですかね。NASAが開発して宇宙ステーションでも使ってる羽根のように軽い。

社長:アポロ13を思い出しますね。

開発:ベランダの太陽光を利用して室内に蓄熱するか蓄電する系は?

経理:もとがとれるかどうかですね。

社長:電気ファンヒータだとどうしても冬場1万円は行きますよね。かといって石油は面倒だから、ガスファンヒータかな。

開発:1ルームなら引き回しの距離も短くて簡単なんですけどね。

基盤:ガスホースを引き回すのは嫌なので、台所で沸かしたお湯を室内に持ってくるのが良いよいように思います。ついでに加湿もしちゃう。

社長:それだ!それで行きましょう。ガスで沸かしたお湯を社内に循環させて、必要なところに放熱器をつける。こたつもそれでやれますかね。湯たんぽみたいな。

開発:気をつけないと低温やけどしますよね。子供の頃にやった跡が消えません。

基盤:体温程度のお湯なら安全なのでは。

開発:ただ、室温の話は冬まで余裕がありますけど、手が冷たいのは早急に対策したいです。

経理:ほかほかUSBマウスパッドで検索… いくつかありますね。価格帯は2000円〜4000円です。消費電力10W程度。

基盤:暴走したプロセスより食わないですね。

開発:なにもキュートで無くても良いのですが。

社長:ハックション…

基盤:おっと、ただいまの室温、19.7度。

開発:充電式の懐炉があると良いと思います。

経路:これは2000円くらいでいろんな種類が売ってますね。5000mAh程度。8時間程度の持続。

社長:形状的にはマウスも懐炉みたいなもんですよね。懐に入れて胸の中で操作するマウス。

開発:そういえば昔、腕組みしたりポケットに手を突っ込んで操作できるキーボード付きマウスっていうのが夢でした。

社長:袋せりか袖の下みたいな。

基盤:指先にトラックボールですかね。

開発:8指以上同時に使えますからね。vi互換のUIをキーコマンドで操作する感じ。

社長:指ごとに別れた軍手状の手袋で、筋電センサーで動かすっていうのもあるんじゃないですかね。保温も出来て一石二鳥。

開発:まあ視線か念力で動かしたいところですが、精度が出なそうです。神経疲れそうですし。

基盤:そもそもスマホはかなり発熱しますから、あれを懐炉だと思えば良いようにも思います。

開発:となると課題は、ライトを切ってブラインドタッチで操作できるようにすることですね。

経理:あったかマウスパッドが喫緊の課題では無いかと。

社長:マウスに非接触給電するマウスパッドで、加熱機能あり、マウスもあったかくなって懐炉にも使えるというのが理想かと思います。

基盤:オプションで加湿機能も。

経理:そういうの、まだ売ってないと思います。USB 加熱で商品検索すると、指先の出てるUSB給電加熱の手袋が結構あります。1000円で、プライム対象です。

開発:非接触給電なら良いのに。

社長:つけ心地ががどうかですが、効率面では一番理にかなってる気はしますね。じゃそれを試しに買ってみましょう。

経理:ではストライプブラウンのを。見積書は不要ですよね?注文をぽちっ。明日午前中に届くそうです。

開発:楽しみですね。

基盤:しかしこれ、カスタマーレビュー、最低ですね。いわゆる粗悪品みたいな。

社長:まあ、お試しお試し。

* * *

開発:ふぁ… ああ、また暗くなってしまいました。

社長:お昼は久しぶりにさたぽんに行ったんですが、オヒサシブリネーとか言われてしまいました。

基盤:おばちゃん、そういう日本語は知ってるんですねw

開発:肌寒いですね。

社長:はじめてウィンドブレーカーを着て外出したのですが、ちょうど良かったです。

開発:Window Breaker なら何かに使えそうな名前ですね。石破みたいな。

社長:Stone Breaker は RDB の大御所でしたね。

開発:ブラウザ間の壁を破るっていうのが良いかもですね。

基盤:こういうやつですね。

基盤:さっき見たら、南向きのもう一つの部屋のガラス戸が空けっぱなしになってました。現在の室温は少し上がって19.4度。どうも人間が活動すると零コンマ何度か上昇するようにも見えます。

開発:私達が部屋を暖めてるってことですかw

* * *

社長:ところで、昨日のWindowsへの移植の時、一度Go言語をちゃんと勉強してみたらどうかなと思いました。

基盤:スマホの使い方とか一度も勉強した事ないですけどね。

開発:まあ、Hello World 以降、オンデマンドで読みかじりしかしてないですからね。結局、ほぼCだけど、可変長データが簡単に扱える、ネット系のライブラリは充実気味、くらいの認識です。

開発:その点、JavaScriptはかっ飛んでますね。HTML、CSSとの関係も面白いと思います。

社長:専門に特化した複数の言語の相互関係が面白いんでしょね。

開発:データ記述言語とアルゴリズム記述言語は別にあって組み合わせられるのが良いのだと思います。

基盤:ガス台が何かピコピコ行ってますが。

開発:ああ、大家さんにもらったクリを茹でてたんですが、空焚き状態になったんですね。温度センサーで止まった模様。

基盤:あの機能が無かったら、何度か燃やしてたかもですね。

* * *

開発:それで、Goについての簡潔な紹介としては、日本語版のWikiが良いなと思いました。言語としての特徴を知るのに、簡潔な実例付きで。

基盤:あのマスコットはやはりGopherだったんですね。リスのような顔をしていてモグラのような生活をしていると。「地下に広大なトンネルを彫ることで知られている」「網目状につながったトンネルと巣穴を掘り」「繁殖期以外は単独生活者で、縄張りを持つ」「最長寿命は5年である」。

社長:めぐる季節を二三回しか経験できないのは可愛そうですね。

基盤:ほとんど地下生活なので、季節感はあまり知らないかも知れません。

社長:ネズミ目(齧歯目)、ビーバー下目、ホリネズミ科、ですか。「目は小さく」。Goのマスコットとは違う種ですかね。

開発:英語版のWikiにはイントロ部分に、JavaScriptに変換するGopherJSというのがあるってありますね。GCCのフロントエンドという処理系もあるみたいなので、それならCとの組み合わせがもっと簡単かなと思います。

社長:同じWikipediaでも日本語版と英語版の作者ではまるで視点が違うのが面白いですね。英語版はタイムラインを軸に、どういう機能があるかわかるのが良いと思います。

開発:readabilityがってあるんですが、セミコロンやカッコを省略できる事でしょうかね?Cで書きなれてると無い方が不安だし、JavaScriptでは悪習とされてるし、並行して書いていると混乱するんですが。いずれセミコロンフル装備に書き直そうと思っているくらいです。

社長:人間の目にも冗長性は必要なんだと思います。

基盤:で、結局Goの魅力って何なんでしょう?

開発:わたし的には、ケン・トンプソンが原型を設計してGoogleが実装・展開してる事ですね。

社長:そろそろボウリングの試合に向けて心の準備をしたいと思います。

* * *

社長:今日は久しぶりに余裕をもって出かけられます。

開発:それが吉と出るか凶と出るか。

基盤:今日の目標は。

社長:まあボウリングのパーは200ですから。でも凹んだ時に170は切らないというほうが重要。最近はハンデが減ってしまったのでチームのために180がノルマと考えています。

開発:今日も途中でガス欠にならないように。

社長:勝負メシに梅園セブンのハムカツサンドを食べていきます。おっと、爪が少し伸びてるので切らなきゃ。ぷちぷち。

開発:まだ30分くらいありますね。

基盤:早めに出てって練習ボールするとか。

社長:最近はもう、試合で投げるだけでおなか一杯です。

開発:昔は一日40Gとか平気で投げましたけどね。

経理:それっていったいいくらかかるんでしょうか?

* * *

開発:そういえば昨日、syscallパッケージの機能を一部差し替えるの時に思ったのですが。syscall.XXX の syscall はクラスと言うかタイプの名前ではなくて空間の名前なので、XXXの種類によって差し替えとか追加が一律に出来ないという厄介さというか。美しくないなと思っています。つまり、変数とメソッドと定数なんですが。

社長:昔ながらの物理的なファイルという単位に束縛されたパッケージって単位はいかがなものかという気はしますね。パッケージ内にインラインでパッケージが書ければよいのに。

開発:ファイルという概念というか単位は確立しきってますからねえ。

基盤:でも、ファイルシステムを差し替えて物理的には一つのファイルを複数のファイルのようにGoの処理系に見せることはできますよね。何が物理的な実体とか単位なのかって事になると思いますが。

開発:まあ、動的リンクで open / read の差し替えくらいなものですね。でも、それならそもそも、リモートファイルシステムから取ってくるのを前提にしてくれたほうが良いですね。HTML, CSS, JavaScript / HTTPみたいに。サーバ側でリソースを切り出すのが簡単です。

社長:Cみたいにプリプロセッサでマクロが書けると良いのですが。

開発:自分でプリプロセッサをかぶせるのは自由ですけどね。gsh.go みたいに単一ファイルなら簡単です。分割されてる場合には、go の run とか build がファイルを開く前にそれを呼ぶように出来ると良いのかなと思います。

基盤:それこそ open システムコールを差し替えるだけで良いのではないかと。

社長:おっと時間です。行ってきます。

* * *

社長:ただいま。

基盤:どうでした?

社長:ハムカツサンドは売り切れでした。(^-^;

-- 2020-1019 SatoxITS

GShell 0.7.1 − Windows版30%

社長:おはようございます。

基盤:おはようございます。

社長:今日は久しぶりに良い天気ですね!

開発:すじっぽくて秋らしい雲ですね。

社長:やっぱり天気が良いと元気が出ます。

基盤:この日差しと空気感は人工的に再現するのは難しいでしょうね。

社長:まあ少なくともコストには合わないでしょう。

Windows版

社長:昨日やりかけてやめてしまったWindows版をやりましょう。

基盤:またメタ議論にはまらないようにw

開発:そうですね。まずはこうなります。

開発:これは Go にとってはコメントの中だし、UTF-8 として正しいはずなので、意味がわかりませんが、おとなしく対処することにします。

開発:動作確認よし。再ビルド。

社長:ファイルのメタ情報とプロセス関係ですね。

開発:これはまったくもってもっともなことです。

社長:どういう方針にしますかね。

開発:もちろん、ソースファイルは一つで行きます。ビルドのオプションとかも嫌です。ランタイムの判定とかもやりたくない。

社長:Go では #ifdef 的な事はできるんでしょうか?

開発:少なくとも CGo ではできるのではないかと思います。CGo でOSの違いを吸収した共通インタフェースを定義して、純粋Goではプラットフォーム独立にそれを参照したいと思います。これが出来ないようなら、Windows対応はやめます。

社長:了解。

基盤:でも、そういうのはもっと上のレベルのパッケージで吸収されているのではないでしょうか?

開発:os パッケージがむず痒くて syscall を使うようになったという経緯があります。

基盤:syscall はもう使うなってようにも見えますが。deprecated、locked downて。

開発:もう30年も変わってないし、今後も変わりようが無いだろうってような機能しか使わないですから。

開発:まずテスト用のプログラム。

開発:でこれをWindowsでやる。

開発:終了しました。

社長:いやいやいや。単にライブラリが無いって言ってるだけですよね。

基盤:cygwin の gcc とか ld を呼んでいるってことは、Win32ネイティブなバイナリは出来ないってことでしょうか?

社長:VCをセットアップしないと行けないとすると、ちょっと嫌ですね。

開発:ちょっと一休みしましょう。

* * *

基盤:そういえば昨日の StatCounter、gsh.go.html の中にも入れちゃおうかと思います。

社長:file:/// でアクセスしたときにどういうRefererになるんでしょうね。

開発:さすがにそれをバラしちゃうとヤバいんで、付けないんじゃないですかね。

開発:・・・ああ、Referer どころか、JavaScript のカウンターなので知ってる事は何でもゲロできちゃうわけですね。

基盤:恐怖…

* * *

社長:ただいまあぁぁ〜まずかった。まずいラーメンを食ってしまいました。帰りにあちこちに面白い空が出てたので写真を撮って来ました。

開発:街なかにひょっこりヒンデンブルグ現る的な。

基盤:撮るって手偏に最って書くんですね。扌最。

開発:カメラでは、特にデジカメでは実物よりきれいに映ることは多いんですが、空は実際これ以上に綺麗ですよね。

社長:学生時代に友達の車に乗せてもらって菅平からの帰り群馬から50号で栃木を走ってた時なんですが、梅雨で長らく憂鬱な空が続いてた先の東の地平のほうに、クリームソーダのようにとろけるようにきれいな空が出てたんです。こういう感じの空だったと思います。それであれ見て見てって助手席で騒いでたんですが、たぶんその関係で駐車場に停めた時に接触事故が起きてしまったんです。彼には迷惑を掛けてしまいました。

開発:ちゃんとした光学ズームのできるカメラが欲しいものです。

社長:やはり日常風景の中に綺麗な空がひょっこり顔を出してると感動しますね。

基盤:その先は宇宙ですしね。

* * *

開発:うあぁ…ふぁあ。寝た。

社長:リステリンで顔を洗いましょう。

開発:このごっついキャップ。カキっと。発想が根本的に違いますね。

社長:昔はポンプのを売ってましたけどね。最後の1cmくらいで底のが吸えなくなるというwww

基盤:buy American な生活って辛そうですね。

開発:作る方も使う方も同じ感性なら問題ないのでは。

Windowsで ≡CGo!

社長:Windows対応の件はやるかやらないか決着を付けましょう。

開発:まあCGoでいけるかですね。gcc して、cygwin.dll 付きで良しとするなら、できるんじゃないかと。ライブラリの検索パスだけのようにも思います。

基盤:-lmingwex とかいうやつですね。

開発:エクスプローラで検索しても出てこないです… cygwinインストーラで検索…

開発:これっぽいですね。インストール。再度ビルド… 変わらずですね。

開発:検索… おっ

開発:へー、そうなんだ。じゃこれでどうかな。

開発:再度ビルド。

社長、基盤:おおーっ!

基盤:ところで mingw ってなんなんですかね?

開発:さあ。30年前ならMinixとか?。とりあえず先人に感謝です。

社長:どういうバイナリになるんでしょうね?

開発:ビルド…

開発:あら?まじでネイティブみたいな。

社長:昔みたいに cygwin1.dll とかいらないんですかね。それともスコープ外なのか。

開発:まあ第一関門通過しましたし、とりあえず先に進めましょう。気合が充填されて来ました。

基盤:やる気ワクワクワークマン♪

社長:そういえばお昼を食べながらiPhoneのグーグルアプリでニュースを見てたら、いきなり#ワークマン女子の記事が出ました。

開発:完全に捕捉されてますねw

緑のスクリーン

開発:うあっ、突然画面が真っ暗に。

社長:フィリップス君の電源マークあたりを指でかすってしましました…

基盤:数カ月ぶりの事故ですね。

開発:これいったいどういう設計思想ですかね。

基盤:根本的に思想がおかしいですよね。軽く触れれば死ねますよって。生き返るのに時間かかるし、前の状態を回復してくれるわけでもないし。

基盤:あー、しかもMacMiniまでおかしくなりました。

開発:前から思うに、どうもこのこはHDMI切れに対してひ弱ですね。

基盤:入力選択してもつながらないですね。モニタの電源抜き差ししても、HDMI抜き差ししてもダメ。… iMac側からはログインできるし普通に動いてるみたいなんですが。あ、つながった?

基盤:みたことのない緑画面が出ました。

基盤:マウスには追随しますね。あ、でもCaps Lockが点灯して消えない?Mission Controlのキーにも反応無しです。

開発:USBドライバ関係にとばっちりがキテるんですかね。

基盤::どうしたんだしかりしろMacMini、バンバンっ!… あれ?

基盤:画面、回復しました。

社長:振動が効いたんですかね?

開発:Siriに心の叫びが届いたとか。

基盤:無効にしていますけどね。あれ。うーん、でも応答が… ブラウザはムジナ。ターミナルのエコーも無く… あ、反応あり。回復しました。

開発:時間的には2分くらいでしたかね。例のウォッチドッグのタイムアウトみたいな。

基盤:ウォッチドッグリセットでは無いですね。ちゃんと全部継続しています。

社長:/var/log になんか残ってないでしょうか?

基盤:ls -lt ... ああ、system.log になにやら色々と。ていうか、Microsoft Remote Desktop がしょっちゅう泣き言を書いてますね。あと、mdworker とやらがしょっちゅうSIGKILLされてます。あーこれは、Spotlight?

開発:まあそれは取っといてあとで読みましょう。GShellを再開したいです。

社長:失われた30分でした。ちょっといっぷくしましょう。

=Go 1.15.3

開発:さて、再開しますか。

基盤:その前にこれ、go1.14.4 て古くないですか?

開発:確かに。他にそろえて 1.15 にしましょう。今は最新版は何ですかね…

社長:なんでリリース日付を書かないんでしょうか?

開発:最新版をインストール…

社長:Goの効果線は何時から2本線になったんですかね?インストーラはもとから?

開発:昔は3ボタンマウスとかでしたっけ。

基盤:白黒のせいか、ちょっと精悍な顔立ちですね。

開発:というか、こっちの顔がしまらなスギです。青鼻たらしてるのか、出っ歯なのか。

基盤:実在のモデルがいるんですかね?

社長:日本人的なかわいいの感性とは違いますよね。

開発:まあでも、この鼻の下にぶら下がってるのだけ整形すれば。

基盤:基本的にはニャロメ顔ですよね。体型はムーミンかドラえもんみたいな。

開発:当時の一番人気はケムンパスでした。

基盤:これはモグラでしょうか?

開発:にしては目がすごく良さそうです。

社長:英語はこういうふうにかけて羨ましいですね。

社長:日本語だとこう「makes it easy」の部分が最後に来ちゃうわけです。最初にバーン!と主張したいところなのに。

開発:that makes it easy to とか、中学校で習う英文法にありそうな言い回しですね。

社長:それでも自分で書く時はなかなか出てこないですけどね。

基盤:それはそうと、なんか固まってますが…

開発:プログレスバーとか出してほしいですね。あ、開始しました。

基盤:スクリーンショットのタイムスタンプによると、所要5分弱でした。

開発:というか、仕事してるよりブログを書いてる時間が何倍か長いですね。

社長:わたしは社史編纂室長として、これが重要な仕事だと思っています。

* * *

開発:さて、ぼちぼち再開します。mingw 版で go build ...

開発:あら?poll.h が無いと。cygwin 版では通ったのに。検索… ああ、POSIXにないから mingw にも無いと。DeleGateではどうしてましたっけ?

社長:WIn32のselectを使って自作した模様。

開発:そうですか… まあ間に合わせなら数十行もかからないですよね。でもpipeとかttyのselectも含めると結構大きくなるはず。できれば標準的なものを… おや?Stackoverflowにこのように

社長:おおー。10年ひと昔ですね。

開発:でもデフォルトでは入ってないような。

社長:pollは必須なんでしたっけ?

開発:いえ、今はキーボード入力をリプレイするのに使ってるだけだったかと。

社長:じゃスタブを噛ませてスキップしましょう。

開発:ダミーを噛ませて黙らせると。再び go build...

基盤:スタート地点に戻りましたね。

社長:ところで、Goって既存のクラスに変数とかメソッドを追加できるんでしょうか?

開発:検索… そういうQ&Aもありますね… でも、考えてみたら使うメソッドとか変数てすごく限られてますから、自前でタイプを定義してラッピングすれば良いのでは無いかと。mysyscall 的な。

* * *

社長:どんな感じでしょう。今日はボウリングの試合もありますので、体調を整えて置きたいという事もあり、そろそろ…

開発:そうですね。一応コンパイルは通しました。

社長、基盤:おおーっ。

開発:起動します。

社長、基盤:おおっ。

開発:内蔵のコマンドはおおむね動きますが、リソース使用情報の取得を実装してないのでゴミが出ます。

社長、基盤:おおー。

開発:ForkExecはspawnで実装することになるかと思いますが、まだ実装していません。なので、外部コマンドはまだ使えません。

社長:なるほど。まあでも、先は見えましたね。

開発:完成までには、所要2人日というところかと思います。今は逆に Unix では動かない状態になっていると思いますが、今日はこのままアーカイブして終わります。今日はGoの入門編で疲れました。

社長:そのへんの行ったり来たりですね。

開発:それはそうと、1週間前に買ったまま忘れてた小松菜、まだ全然元気でしたね。すぐに枯れたり腐ったりするへなちょこなほうれん草とはえらい違いです。味も全然問題なし。

基盤:しかもむくむく新しい葉を出そうとしたりするど根性。

社長:ちょっと草っぽいですが、これはもともとそういうモノなんですかね。

開発:今度は買った直後に炒めてみましょう。

基盤:そういえば、StatCounter のほうのビジターマップはこんなふうになってます。ロボットが除外されているので寂しい限り。その上、アクセスしてるURLを見ると、大半が人間かどうか怪しい。

社長:まあ、いっそ清々しいってもんですよ。これからがスタートって再確認しました。

基盤:あのWordPressのカウンター祭りって、意味なかったですねw

開発:かたや、このStatCounterってめっちゃ面白そうです。JavaScriptnお勉強にもなりそうですし。

社長:$9/月は、全くアリですね。

-- 2020-1018 SatoxITS

/* GShell-0.7.1 by SatoxITS
GShell version 0.7.1 // 2020-10-18 // SatoxITS
*/ // // /*
Topbar

Topbar

*/ //
// // // /*
Indexer

Indexer

*/ //
// /*

GShell // a General purpose Shell built on the top of Golang

It is a shell for myself, by myself, of myself. --SatoxITS(^-^) prev.

Edit Save Load Vers 0 Fork Stop Unfold Digest Source
*/ /*
Statement

Fun to create a shell

For a programmer, it must be far easy and fun to create his own simple shell rightly fitting to his favor and necessities, than learning existing shells with complex full features that he never use. I, as one of programmers, am writing this tiny shell for my own real needs, totally from scratch, with fun.

For a programmer, it is fun to learn new computer languages. For long years before writing this software, I had been specialized to C and early HTML2 :-). Now writing this software, I'm learning Go language, HTML5, JavaScript and CSS on demand as a novice of these, with fun.

This single file "gsh.go", that is executable by Go, contains all of the code written in Go. Also it can be displayed as "gsh.go.html" by browsers. It is a standalone HTML file that works as the viewer of the code of itself, and as the "home page" of this software.

Because this HTML file is a Go program, you may run it as a real shell program on your computer. But you must be aware that this program is written under situation like above. Needless to say, there is no warranty for this program in any means.

Aug 2020, SatoxITS (sato@its-more.jp)
*/ /*
Features

Cross-browser communication

... to be written ...

Vi compatible command line editor

The command line of GShell can be edited with commands compatible with vi. As in vi, you can enter command mode by ESC key, then move around in the history by j k / ? n N, or within the current line by l h f w b 0 $ % or so.

*/ /*
Index
Documents Command summary Go lang part Package structures import struct Main functions str-expansion // macro processor finder // builtin find + du grep // builtin grep + wc + cksum + ... plugin // plugin commands system // external commands builtin // builtin commands network // socket handler remote-sh // remote shell redirect // StdIn/Out redireciton history // command history rusage // resouce usage encode // encode / decode IME // command line IME getline // line editor scanf // string decomposer interpreter // command interpreter main JavaScript part Source Builtin data CSS part Source References Internal External Whole parts Source Download Dump
*/ //
//Go Source
// gsh - Go lang based Shell // (c) 2020 ITS more Co., Ltd. // 2020-0807 created by SatoxITS (sato@its-more.jp) package main // gsh main // Imported packages // Packages import ( "fmt" // fmt "errors" "strings" // strings "strconv" // strconv "sort" // sort "time" // time "bufio" // bufio "io/ioutil" // ioutil "os" // os "syscall" // syscall "plugin" // plugin "net" // net "net/http" // http //"html" // html "path/filepath" // filepath "go/types" // types "go/token" // token "encoding/base64" // base64 "unicode/utf8" // utf8 //"gshdata" // gshell's logo and source code "hash/crc32" // crc32 "golang.org/x/net/websocket" ) // // 2020-0906 added, // // CGo // // #include "poll.h" // // to be closed as HTML tag :-p //#define POLLIN 1 /* Set if data to read. */ //struct pollfd { // int fd; // short events; // short revents; //}; //int poll(struct pollfd *fds, unsigned int nfds, int timeout); // // #include // typedef struct { struct pollfd fdv[8]; } pollFdv; // int pollx(pollFdv *fdv, int nfds, int timeout){ // //return poll(fdv->fdv,nfds,timeout); // if( nfds == 1 ){ // fdv->fdv[0].revents = POLLIN; // return 1; // } // fprintf(stderr,"Polling(fdv{0x%X},nfd=%d,tiemout=%dms)...",fdv->fdv[0],nfds,timeout); // for(;;); // return 0; // } import "C" // // 2020-0906 added, func CFpollIn1(fp*os.File, timeoutUs int)(ready uintptr){ var fdv = C.pollFdv{} var nfds = 1 var timeout = timeoutUs/1000 fdv.fdv[0].fd = C.int(fp.Fd()) fdv.fdv[0].events = C.POLLIN if( 0 < EventRecvFd ){ fdv.fdv[1].fd = C.int(EventRecvFd) fdv.fdv[1].events = C.POLLIN nfds += 1 } r := C.pollx(&fdv,C.int(nfds),C.int(timeout)) if( r <= 0 ){ return 0 } if (int(fdv.fdv[1].revents) & int(C.POLLIN)) != 0 { //fprintf(stderr,"--De-- got Event\n"); return uintptr(EventFdOffset + fdv.fdv[1].fd) } if (int(fdv.fdv[0].revents) & int(C.POLLIN)) != 0 { return uintptr(NormalFdOffset + fdv.fdv[0].fd) } return 0 } const ( NAME = "gsh" VERSION = "0.7.1" DATE = "2020-10-18" AUTHOR = "SatoxITS(^-^)//" ) var ( GSH_HOME = ".gsh" // under home directory GSH_PORT = 9999 MaxStreamSize = int64(128*1024*1024*1024) // 128GiB is too large? PROMPT = "> " LINESIZE = (8*1024) PATHSEP = ":" // should be ";" in Windows DIRSEP = "/" // canbe \ in Windows ) // -xX logging control // --A-- all // --I-- info. // --D-- debug // --T-- time and resource usage // --W-- warning // --E-- error // --F-- fatal error // --Xn- network // Structures type GCommandHistory struct { StartAt time.Time // command line execution started at EndAt time.Time // command line execution ended at ResCode int // exit code of (external command) CmdError error // error string OutData *os.File // output of the command FoundFile []string // output - result of ufind Rusagev [2]Mysyscall_Rusage // Resource consumption, CPU time or so CmdId int // maybe with identified with arguments or impact // redireciton commands should not be the CmdId WorkDir string // working directory at start WorkDirX int // index in ChdirHistory CmdLine string // command line } type GChdirHistory struct { Dir string MovedAt time.Time CmdIndex int } type CmdMode struct { BackGround bool } type Event struct { when time.Time event int evarg int64 CmdIndex int } var CmdIndex int var Events []Event type PluginInfo struct { Spec *plugin.Plugin Addr plugin.Symbol Name string // maybe relative Path string // this is in Plugin but hidden } type GServer struct { host string port string } // 2020-1018 func OnWindows()(bool){ return true } type Mysyscall_Stat_t struct { Dev uint64 Ino uint64 Nlink uint64 Mode uint32 Uid uint32 Gid uint32 X__pad0 int32 Rdev uint64 Size int64 Blksize int64 Blocks int64 //Atim Timespec //Mtim Timespec //Ctim Timespec X__unused [3]int64 } type Mysyscall_ProcAttr os.ProcAttr type mysyscall_type struct { Utime syscall.Timeval Stime syscall.Timeval Rusage syscall.Rusage Socketpair func(int,int,int)([2]int,error) RUSAGE_SELF int RUSAGE_CHILDREN int WNOHANG int } var mysyscall mysyscall_type; func (*mysyscall_type)Fstat(int,*Mysyscall_Stat_t)(error){ return errors.New("NoFstatAvailableOnWindows"); } func (*mysyscall_type)Lstat(path string, stat *Mysyscall_Stat_t)(err error){ return errors.New("NoLstatOnWindows") } func (*mysyscall_type)Access(path string,mode int)(err error){ return nil; } func (*mysyscall_type)Read(fd int,buf []byte)(int,error){ return 0,nil; } func (*mysyscall_type)Write(fd int,buf []byte)(int,error){ return 0,nil; } func (*mysyscall_type)Pipe(fd []int)(int){ return 0; } func (*mysyscall_type)ForkExec(argv0 string, argv []string, attr *Mysyscall_ProcAttr) (int,error){ return -1,errors.New("NoForkExecOnWindows") } func (*mysyscall_type)Wait4(int,*int,int,*Mysyscall_Rusage)(pid int,err error){ return -1,errors.New("NoWait4OnWindows") } type Mysyscall_Rusage struct { syscall.Rusage Utime syscall.Timeval Stime syscall.Timeval Idrss int Ixrss int Maxrss int Minflt int Majflt int Nswap int Inblock int Oublock int Msgsnd int Msgrcv int Nsignals int } func (*mysyscall_type)Getrusage(mode int,ru *Mysyscall_Rusage)(int){ return -1 } // Digest const ( // SumType SUM_ITEMS = 0x000001 // items count SUM_SIZE = 0x000002 // data length (simplly added) SUM_SIZEHASH = 0x000004 // data length (hashed sequence) SUM_DATEHASH = 0x000008 // date of data (hashed sequence) // also envelope attributes like time stamp can be a part of digest // hashed value of sizes or mod-date of files will be useful to detect changes SUM_WORDS = 0x000010 // word count is a kind of digest SUM_LINES = 0x000020 // line count is a kind of digest SUM_SUM64 = 0x000040 // simple add of bytes, useful for human too SUM_SUM32_BITS = 0x000100 // the number of true bits SUM_SUM32_2BYTE = 0x000200 // 16bits words SUM_SUM32_4BYTE = 0x000400 // 32bits words SUM_SUM32_8BYTE = 0x000800 // 64bits words SUM_SUM16_BSD = 0x001000 // UNIXsum -sum -bsd SUM_SUM16_SYSV = 0x002000 // UNIXsum -sum -sysv SUM_UNIXFILE = 0x004000 SUM_CRCIEEE = 0x008000 ) type CheckSum struct { Files int64 // the number of files (or data) Size int64 // content size Words int64 // word count Lines int64 // line count SumType int Sum64 uint64 Crc32Table crc32.Table Crc32Val uint32 Sum16 int Ctime time.Time Atime time.Time Mtime time.Time Start time.Time Done time.Time RusgAtStart [2]Mysyscall_Rusage RusgAtEnd [2]Mysyscall_Rusage } type ValueStack [][]string type GshContext struct { StartDir string // the current directory at the start GetLine string // gsh-getline command as a input line editor ChdirHistory []GChdirHistory // the 1st entry is wd at the start gshPA Mysyscall_ProcAttr CommandHistory []GCommandHistory CmdCurrent GCommandHistory BackGround bool BackGroundJobs []int LastRusage Mysyscall_Rusage GshHomeDir string TerminalId int CmdTrace bool // should be [map] CmdTime bool // should be [map] PluginFuncs []PluginInfo iValues []string iDelimiter string // field sepearater of print out iFormat string // default print format (of integer) iValStack ValueStack LastServer GServer RSERV string // [gsh://]host[:port] RWD string // remote (target, there) working directory lastCheckSum CheckSum } func nsleep(ns time.Duration){ time.Sleep(ns) } func usleep(ns time.Duration){ nsleep(ns*1000) } func msleep(ns time.Duration){ nsleep(ns*1000000) } func sleep(ns time.Duration){ nsleep(ns*1000000000) } func strBegins(str, pat string)(bool){ if len(pat) <= len(str){ yes := str[0:len(pat)] == pat //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,yes) return yes } //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,false) return false } func isin(what string, list []string) bool { for _, v := range list { if v == what { return true } } return false } func isinX(what string,list[]string)(int){ for i,v := range list { if v == what { return i } } return -1 } func env(opts []string) { env := os.Environ() if isin("-s", opts){ sort.Slice(env, func(i,j int) bool { return env[i] < env[j] }) } for _, v := range env { fmt.Printf("%v\n",v) } } // - rewriting should be context dependent // - should postpone until the real point of evaluation // - should rewrite only known notation of symobl func scanInt(str string)(val int,leng int){ leng = -1 for i,ch := range str { if '0' <= ch && ch <= '9' { leng = i+1 }else{ break } } if 0 < leng { ival,_ := strconv.Atoi(str[0:leng]) return ival,leng }else{ return 0,0 } } func substHistory(gshCtx *GshContext,str string,i int,rstr string)(leng int,rst string){ if len(str[i+1:]) == 0 { return 0,rstr } hi := 0 histlen := len(gshCtx.CommandHistory) if str[i+1] == '!' { hi = histlen - 1 leng = 1 }else{ hi,leng = scanInt(str[i+1:]) if leng == 0 { return 0,rstr } if hi < 0 { hi = histlen + hi } } if 0 <= hi && hi < histlen { var ext byte if 1 < len(str[i+leng:]) { ext = str[i+leng:][1] } //fmt.Printf("--D-- %v(%c)\n",str[i+leng:],str[i+leng]) if ext == 'f' { leng += 1 xlist := []string{} list := gshCtx.CommandHistory[hi].FoundFile for _,v := range list { //list[i] = escapeWhiteSP(v) xlist = append(xlist,escapeWhiteSP(v)) } //rstr += strings.Join(list," ") rstr += strings.Join(xlist," ") }else if ext == '@' || ext == 'd' { // !N@ .. workdir at the start of the command leng += 1 rstr += gshCtx.CommandHistory[hi].WorkDir }else{ rstr += gshCtx.CommandHistory[hi].CmdLine } }else{ leng = 0 } return leng,rstr } func escapeWhiteSP(str string)(string){ if len(str) == 0 { return "\\z" // empty, to be ignored } rstr := "" for _,ch := range str { switch ch { case '\\': rstr += "\\\\" case ' ': rstr += "\\s" case '\t': rstr += "\\t" case '\r': rstr += "\\r" case '\n': rstr += "\\n" default: rstr += string(ch) } } return rstr } func unescapeWhiteSP(str string)(string){ // strip original escapes rstr := "" for i := 0; i < len(str); i++ { ch := str[i] if ch == '\\' { if i+1 < len(str) { switch str[i+1] { case 'z': continue; } } } rstr += string(ch) } return rstr } func unescapeWhiteSPV(strv []string)([]string){ // strip original escapes ustrv := []string{} for _,v := range strv { ustrv = append(ustrv,unescapeWhiteSP(v)) } return ustrv } // str-expansion // - this should be a macro processor func strsubst(gshCtx *GshContext,str string,histonly bool) string { rbuff := []byte{} if false { //@@U Unicode should be cared as a character return str } //rstr := "" inEsc := 0 // escape characer mode for i := 0; i < len(str); i++ { //fmt.Printf("--D--Subst %v:%v\n",i,str[i:]) ch := str[i] if inEsc == 0 { if ch == '!' { //leng,xrstr := substHistory(gshCtx,str,i,rstr) leng,rs := substHistory(gshCtx,str,i,"") if 0 < leng { //_,rs := substHistory(gshCtx,str,i,"") rbuff = append(rbuff,[]byte(rs)...) i += leng //rstr = xrstr continue } } switch ch { case '\\': inEsc = '\\'; continue //case '%': inEsc = '%'; continue case '$': } } switch inEsc { case '\\': switch ch { case '\\': ch = '\\' case 's': ch = ' ' case 't': ch = '\t' case 'r': ch = '\r' case 'n': ch = '\n' case 'z': inEsc = 0; continue // empty, to be ignored } inEsc = 0 case '%': switch { case ch == '%': ch = '%' case ch == 'T': //rstr = rstr + time.Now().Format(time.Stamp) rs := time.Now().Format(time.Stamp) rbuff = append(rbuff,[]byte(rs)...) inEsc = 0 continue; default: // postpone the interpretation //rstr = rstr + "%" + string(ch) rbuff = append(rbuff,ch) inEsc = 0 continue; } inEsc = 0 } //rstr = rstr + string(ch) rbuff = append(rbuff,ch) } //fmt.Printf("--D--subst(%s)(%s)\n",str,string(rbuff)) return string(rbuff) //return rstr } func showFileInfo(path string, opts []string) { if isin("-l",opts) || isin("-ls",opts) { fi, err := os.Stat(path) if err != nil { fmt.Printf("---------- ((%v))",err) }else{ mod := fi.ModTime() date := mod.Format(time.Stamp) fmt.Printf("%v %8v %s ",fi.Mode(),fi.Size(),date) } } fmt.Printf("%s",path) if isin("-sp",opts) { fmt.Printf(" ") }else if ! isin("-n",opts) { fmt.Printf("\n") } } func userHomeDir()(string,bool){ /* homedir,_ = os.UserHomeDir() // not implemented in older Golang */ homedir,found := os.LookupEnv("HOME") //fmt.Printf("--I-- HOME=%v(%v)\n",homedir,found) if !found { return "/tmp",found } return homedir,found } func toFullpath(path string) (fullpath string) { if path[0] == '/' { return path } pathv := strings.Split(path,DIRSEP) switch { case pathv[0] == ".": pathv[0], _ = os.Getwd() case pathv[0] == "..": // all ones should be interpreted cwd, _ := os.Getwd() ppathv := strings.Split(cwd,DIRSEP) pathv[0] = strings.Join(ppathv,DIRSEP) case pathv[0] == "~": pathv[0],_ = userHomeDir() default: cwd, _ := os.Getwd() pathv[0] = cwd + DIRSEP + pathv[0] } return strings.Join(pathv,DIRSEP) } func IsRegFile(path string)(bool){ fi, err := os.Stat(path) if err == nil { fm := fi.Mode() return fm.IsRegular(); } return false } // Encode / Decode // Encoder func (gshCtx *GshContext)Enc(argv[]string){ file := os.Stdin buff := make([]byte,LINESIZE) li := 0 encoder := base64.NewEncoder(base64.StdEncoding,os.Stdout) for li = 0; ; li++ { count, err := file.Read(buff) if count <= 0 { break } if err != nil { break } encoder.Write(buff[0:count]) } encoder.Close() } func (gshCtx *GshContext)Dec(argv[]string){ decoder := base64.NewDecoder(base64.StdEncoding,os.Stdin) li := 0 buff := make([]byte,LINESIZE) for li = 0; ; li++ { count, err := decoder.Read(buff) if count <= 0 { break } if err != nil { break } os.Stdout.Write(buff[0:count]) } } // lnsp [N] [-crlf][-C \\] func (gshCtx *GshContext)SplitLine(argv[]string){ strRep := isin("-str",argv) // "..."+ reader := bufio.NewReaderSize(os.Stdin,64*1024) ni := 0 toi := 0 for ni = 0; ; ni++ { line, err := reader.ReadString('\n') if len(line) <= 0 { if err != nil { fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d (%v)\n",ni,toi,err) break } } off := 0 ilen := len(line) remlen := len(line) if strRep { os.Stdout.Write([]byte("\"")) } for oi := 0; 0 < remlen; oi++ { olen := remlen addnl := false if 72 < olen { olen = 72 addnl = true } fmt.Fprintf(os.Stderr,"--D-- write %d [%d.%d] %d %d/%d/%d\n", toi,ni,oi,off,olen,remlen,ilen) toi += 1 os.Stdout.Write([]byte(line[0:olen])) if addnl { if strRep { os.Stdout.Write([]byte("\"+\n\"")) }else{ //os.Stdout.Write([]byte("\r\n")) os.Stdout.Write([]byte("\\")) os.Stdout.Write([]byte("\n")) } } line = line[olen:] off += olen remlen -= olen } if strRep { os.Stdout.Write([]byte("\"\n")) } } fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d\n",ni,toi) } // CRC32 crc32 // 1 0000 0100 1100 0001 0001 1101 1011 0111 var CRC32UNIX uint32 = uint32(0x04C11DB7) // Unix cksum var CRC32IEEE uint32 = uint32(0xEDB88320) func byteCRC32add(crc uint32,str[]byte,len uint64)(uint32){ var oi uint64 for oi = 0; oi < len; oi++ { var oct = str[oi] for bi := 0; bi < 8; bi++ { //fprintf(stderr,"--CRC32 %d %X (%d.%d)\n",crc,oct,oi,bi) ovf1 := (crc & 0x80000000) != 0 ovf2 := (oct & 0x80) != 0 ovf := (ovf1 && !ovf2) || (!ovf1 && ovf2) oct <<= 1 crc <<= 1 if ovf { crc ^= CRC32UNIX } } } //fprintf(stderr,"--CRC32 return %d %d\n",crc,len) return crc; } func byteCRC32end(crc uint32, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len) li += 1 len >>= 8 if( len == 0 ){ break } } crc = byteCRC32add(crc,slen,uint64(li)) crc ^= 0xFFFFFFFF return crc } func strCRC32(str string,len uint64)(crc uint32){ crc = byteCRC32add(0,[]byte(str),len) crc = byteCRC32end(crc,len) //fprintf(stderr,"--CRC32 %d %d\n",crc,len) return crc } func CRC32Finish(crc uint32, table *crc32.Table, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len & 0xFF) li += 1 len >>= 8 if( len == 0 ){ break } } crc = crc32.Update(crc,table,slen) crc ^= 0xFFFFFFFF return crc } func (gsh*GshContext)xCksum(path string,argv[]string, sum*CheckSum)(int64){ if isin("-type/f",argv) && !IsRegFile(path){ return 0 } if isin("-type/d",argv) && IsRegFile(path){ return 0 } file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- cksum %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- cksum %v %v\n",path,argv) } bi := 0 var buff = make([]byte,32*1024) var total int64 = 0 var initTime = time.Time{} if sum.Start == initTime { sum.Start = time.Now() } for bi = 0; ; bi++ { count,err := file.Read(buff) if count <= 0 || err != nil { break } if (sum.SumType & SUM_SUM64) != 0 { s := sum.Sum64 for _,c := range buff[0:count] { s += uint64(c) } sum.Sum64 = s } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32add(sum.Crc32Val,buff,uint64(count)) } if (sum.SumType & SUM_CRCIEEE) != 0 { sum.Crc32Val = crc32.Update(sum.Crc32Val,&sum.Crc32Table,buff[0:count]) } // BSD checksum if (sum.SumType & SUM_SUM16_BSD) != 0 { s := sum.Sum16 for _,c := range buff[0:count] { s = (s >> 1) + ((s & 1) << 15) s += int(c) s &= 0xFFFF //fmt.Printf("BSDsum: %d[%d] %d\n",sum.Size+int64(i),i,s) } sum.Sum16 = s } if (sum.SumType & SUM_SUM16_SYSV) != 0 { for bj := 0; bj < count; bj++ { sum.Sum16 += int(buff[bj]) } } total += int64(count) } sum.Done = time.Now() sum.Files += 1 sum.Size += total if !isin("-s",argv) { fmt.Printf("%v ",total) } return 0 } // grep // "lines", "lin" or "lnp" for "(text) line processor" or "scanner" // a*,!ab,c, ... sequentioal combination of patterns // what "LINE" is should be definable // generic line-by-line processing // grep [-v] // cat -n -v // uniq [-c] // tail -f // sed s/x/y/ or awk // grep with line count like wc // rewrite contents if specified func (gsh*GshContext)xGrep(path string,rexpv[]string)(int){ file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- grep %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- grep %v %v\n",path,rexpv) } //reader := bufio.NewReaderSize(file,LINESIZE) reader := bufio.NewReaderSize(file,80) li := 0 found := 0 for li = 0; ; li++ { line, err := reader.ReadString('\n') if len(line) <= 0 { break } if 150 < len(line) { // maybe binary break; } if err != nil { break } if 0 <= strings.Index(string(line),rexpv[0]) { found += 1 fmt.Printf("%s:%d: %s",path,li,line) } } //fmt.Printf("total %d lines %s\n",li,path) //if( 0 < found ){ fmt.Printf("((found %d lines %s))\n",found,path); } return found } // Finder // finding files with it name and contents // file names are ORed // show the content with %x fmt list // ls -R // tar command by adding output type fileSum struct { Err int64 // access error or so Size int64 // content size DupSize int64 // content size from hard links Blocks int64 // number of blocks (of 512 bytes) DupBlocks int64 // Blocks pointed from hard links HLinks int64 // hard links Words int64 Lines int64 Files int64 Dirs int64 // the num. of directories SymLink int64 Flats int64 // the num. of flat files MaxDepth int64 MaxNamlen int64 // max. name length nextRepo time.Time } func showFusage(dir string,fusage *fileSum){ bsume := float64(((fusage.Blocks-fusage.DupBlocks)/2)*1024)/1000000.0 //bsumdup := float64((fusage.Blocks/2)*1024)/1000000.0 fmt.Printf("%v: %v files (%vd %vs %vh) %.6f MB (%.2f MBK)\n", dir, fusage.Files, fusage.Dirs, fusage.SymLink, fusage.HLinks, float64(fusage.Size)/1000000.0,bsume); } const ( S_IFMT = 0170000 S_IFCHR = 0020000 S_IFDIR = 0040000 S_IFREG = 0100000 S_IFLNK = 0120000 S_IFSOCK = 0140000 ) func cumFinfo(fsum *fileSum, path string, staterr error, fstat Mysyscall_Stat_t, argv[]string,verb bool)(*fileSum){ now := time.Now() if time.Second <= now.Sub(fsum.nextRepo) { if !fsum.nextRepo.IsZero(){ tstmp := now.Format(time.Stamp) showFusage(tstmp,fsum) } fsum.nextRepo = now.Add(time.Second) } if staterr != nil { fsum.Err += 1 return fsum } fsum.Files += 1 if 1 < fstat.Nlink { // must count only once... // at least ignore ones in the same directory //if finfo.Mode().IsRegular() { if (fstat.Mode & S_IFMT) == S_IFREG { fsum.HLinks += 1 fsum.DupBlocks += int64(fstat.Blocks) //fmt.Printf("---Dup HardLink %v %s\n",fstat.Nlink,path) } } //fsum.Size += finfo.Size() fsum.Size += fstat.Size fsum.Blocks += int64(fstat.Blocks) //if verb { fmt.Printf("(%8dBlk) %s",fstat.Blocks/2,path) } if isin("-ls",argv){ //if verb { fmt.Printf("%4d %8d ",fstat.Blksize,fstat.Blocks) } // fmt.Printf("%d\t",fstat.Blocks/2) } //if finfo.IsDir() if (fstat.Mode & S_IFMT) == S_IFDIR { fsum.Dirs += 1 } //if (finfo.Mode() & os.ModeSymlink) != 0 if (fstat.Mode & S_IFMT) == S_IFLNK { //if verb { fmt.Printf("symlink(%v,%s)\n",fstat.Mode,finfo.Name()) } //{ fmt.Printf("symlink(%o,%s)\n",fstat.Mode,finfo.Name()) } fsum.SymLink += 1 } return fsum } func (gsh*GshContext)xxFindEntv(depth int,total *fileSum,dir string, dstat Mysyscall_Stat_t, ei int, entv []string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) // sort entv /* if isin("-t",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].ModTime().Sub(filev[j].ModTime()) }) } */ /* if isin("-u",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].AccTime().Sub(filev[j].AccTime()) }) } if isin("-U",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].CreatTime().Sub(filev[j].CreatTime()) }) } */ /* if isin("-S",argv){ sort.Slice(filev, func(i,j int) bool { return filev[j].Size() < filev[i].Size() }) } */ for _,filename := range entv { for _,npat := range npatv { match := true if npat == "*" { match = true }else{ match, _ = filepath.Match(npat,filename) } path := dir + DIRSEP + filename if !match { continue } var fstat Mysyscall_Stat_t staterr := mysyscall.Lstat(path,&fstat) if staterr != nil { if !isin("-w",argv){fmt.Printf("ufind: %v\n",staterr) } continue; } if isin("-du",argv) && (fstat.Mode & S_IFMT) == S_IFDIR { // should not show size of directory in "-du" mode ... }else if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { if isin("-du",argv) { fmt.Printf("%d\t",fstat.Blocks/2) } showFileInfo(path,argv) } if true { // && isin("-du",argv) total = cumFinfo(total,path,staterr,fstat,argv,false) } /* if isin("-wc",argv) { } */ if gsh.lastCheckSum.SumType != 0 { gsh.xCksum(path,argv,&gsh.lastCheckSum); } x := isinX("-grep",argv); // -grep will be convenient like -ls if 0 <= x && x+1 <= len(argv) { // -grep will be convenient like -ls if IsRegFile(path){ found := gsh.xGrep(path,argv[x+1:]) if 0 < found { foundv := gsh.CmdCurrent.FoundFile if len(foundv) < 10 { gsh.CmdCurrent.FoundFile = append(gsh.CmdCurrent.FoundFile,path) } } } } if !isin("-r0",argv) { // -d 0 in du, -depth n in find //total.Depth += 1 if (fstat.Mode & S_IFMT) == S_IFLNK { continue } if dstat.Rdev != fstat.Rdev { fmt.Printf("--I-- don't follow differnet device %v(%v) %v(%v)\n", dir,dstat.Rdev,path,fstat.Rdev) } if (fstat.Mode & S_IFMT) == S_IFDIR { total = gsh.xxFind(depth+1,total,path,npatv,argv) } } } } return total } func (gsh*GshContext)xxFind(depth int,total *fileSum,dir string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) dirfile,oerr := os.OpenFile(dir,os.O_RDONLY,0) if oerr == nil { //fmt.Printf("--I-- %v(%v)[%d]\n",dir,dirfile,dirfile.Fd()) defer dirfile.Close() }else{ } prev := *total var dstat Mysyscall_Stat_t staterr := mysyscall.Lstat(dir,&dstat) // should be flstat if staterr != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",staterr) } return total } //filev,err := ioutil.ReadDir(dir) //_,err := ioutil.ReadDir(dir) // ReadDir() heavy and bad for huge directory /* if err != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",err) } return total } */ if depth == 0 { total = cumFinfo(total,dir,staterr,dstat,argv,true) if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { showFileInfo(dir,argv) } } // it it is not a directory, just scan it and finish for ei := 0; ; ei++ { entv,rderr := dirfile.Readdirnames(8*1024) if len(entv) == 0 || rderr != nil { //if rderr != nil { fmt.Printf("[%d] len=%d (%v)\n",ei,len(entv),rderr) } break } if 0 < ei { fmt.Printf("--I-- xxFind[%d] %d large-dir: %s\n",ei,len(entv),dir) } total = gsh.xxFindEntv(depth,total,dir,dstat,ei,entv,npatv,argv) } if isin("-du",argv) { // if in "du" mode fmt.Printf("%d\t%s\n",(total.Blocks-prev.Blocks)/2,dir) } return total } // {ufind|fu|ls} [Files] [// Names] [-- Expressions] // Files is "." by default // Names is "*" by default // Expressions is "-print" by default for "ufind", or -du for "fu" command func (gsh*GshContext)xFind(argv[]string){ if 0 < len(argv) && strBegins(argv[0],"?"){ showFound(gsh,argv) return } if isin("-cksum",argv) || isin("-sum",argv) { gsh.lastCheckSum = CheckSum{} if isin("-sum",argv) && isin("-add",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 }else if isin("-sum",argv) && isin("-size",argv) { gsh.lastCheckSum.SumType |= SUM_SIZE }else if isin("-sum",argv) && isin("-bsd",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_BSD }else if isin("-sum",argv) && isin("-sysv",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_SYSV }else if isin("-sum",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 } if isin("-unix",argv) { gsh.lastCheckSum.SumType |= SUM_UNIXFILE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32UNIX) } if isin("-ieee",argv){ gsh.lastCheckSum.SumType |= SUM_CRCIEEE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32IEEE) } gsh.lastCheckSum.RusgAtStart = Getrusagev() } var total = fileSum{} npats := []string{} for _,v := range argv { if 0 < len(v) && v[0] != '-' { npats = append(npats,v) } if v == "//" { break } if v == "--" { break } if v == "-grep" { break } if v == "-ls" { break } } if len(npats) == 0 { npats = []string{"*"} } cwd := "." // if to be fullpath ::: cwd, _ := os.Getwd() if len(npats) == 0 { npats = []string{"*"} } fusage := gsh.xxFind(0,&total,cwd,npats,argv) if gsh.lastCheckSum.SumType != 0 { var sumi uint64 = 0 sum := &gsh.lastCheckSum if (sum.SumType & SUM_SIZE) != 0 { sumi = uint64(sum.Size) } if (sum.SumType & SUM_SUM64) != 0 { sumi = sum.Sum64 } if (sum.SumType & SUM_SUM16_SYSV) != 0 { s := uint32(sum.Sum16) r := (s & 0xFFFF) + ((s & 0xFFFFFFFF) >> 16) s = (r & 0xFFFF) + (r >> 16) sum.Crc32Val = uint32(s) sumi = uint64(s) } if (sum.SumType & SUM_SUM16_BSD) != 0 { sum.Crc32Val = uint32(sum.Sum16) sumi = uint64(sum.Sum16) } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32end(sum.Crc32Val,uint64(sum.Size)) sumi = uint64(byteCRC32end(sum.Crc32Val,uint64(sum.Size))) } if 1 < sum.Files { fmt.Printf("%v %v // %v / %v files, %v/file\r\n", sumi,sum.Size, abssize(sum.Size),sum.Files, abssize(sum.Size/sum.Files)) }else{ fmt.Printf("%v %v %v\n", sumi,sum.Size,npats[0]) } } if !isin("-grep",argv) { showFusage("total",fusage) } if !isin("-s",argv){ hits := len(gsh.CmdCurrent.FoundFile) if 0 < hits { fmt.Printf("--I-- %d files hits // can be refered with !%df\n", hits,len(gsh.CommandHistory)) } } if gsh.lastCheckSum.SumType != 0 { if isin("-ru",argv) { sum := &gsh.lastCheckSum sum.Done = time.Now() gsh.lastCheckSum.RusgAtEnd = Getrusagev() elps := sum.Done.Sub(sum.Start) fmt.Printf("--cksum-size: %v (%v) / %v files, %v/file\r\n", sum.Size,abssize(sum.Size),sum.Files,abssize(sum.Size/sum.Files)) nanos := int64(elps) fmt.Printf("--cksum-time: %v/total, %v/file, %.1f files/s, %v\r\n", abbtime(nanos), abbtime(nanos/sum.Files), (float64(sum.Files)*1000000000.0)/float64(nanos), abbspeed(sum.Size,nanos)) diff := RusageSubv(sum.RusgAtEnd,sum.RusgAtStart) fmt.Printf("--cksum-rusg: %v\n",sRusagef("",argv,diff)) } } return } func showFiles(files[]string){ sp := "" for i,file := range files { if 0 < i { sp = " " } else { sp = "" } fmt.Printf(sp+"%s",escapeWhiteSP(file)) } } func showFound(gshCtx *GshContext, argv[]string){ for i,v := range gshCtx.CommandHistory { if 0 < len(v.FoundFile) { fmt.Printf("!%d (%d) ",i,len(v.FoundFile)) if isin("-ls",argv){ fmt.Printf("\n") for _,file := range v.FoundFile { fmt.Printf("") //sub number? showFileInfo(file,argv) } }else{ showFiles(v.FoundFile) fmt.Printf("\n") } } } } func showMatchFile(filev []os.FileInfo, npat,dir string, argv[]string)(string,bool){ fname := "" found := false for _,v := range filev { match, _ := filepath.Match(npat,(v.Name())) if match { fname = v.Name() found = true //fmt.Printf("[%d] %s\n",i,v.Name()) showIfExecutable(fname,dir,argv) } } return fname,found } func showIfExecutable(name,dir string,argv[]string)(ffullpath string,ffound bool){ var fullpath string if strBegins(name,DIRSEP){ fullpath = name }else{ fullpath = dir + DIRSEP + name } fi, err := os.Stat(fullpath) if err != nil { fullpath = dir + DIRSEP + name + ".go" fi, err = os.Stat(fullpath) } if err == nil { fm := fi.Mode() if fm.IsRegular() { // R_OK=4, W_OK=2, X_OK=1, F_OK=0 if mysyscall.Access(fullpath,5) == nil { ffullpath = fullpath ffound = true if ! isin("-s", argv) { showFileInfo(fullpath,argv) } } } } return ffullpath, ffound } func which(list string, argv []string) (fullpathv []string, itis bool){ if len(argv) <= 1 { fmt.Printf("Usage: which comand [-s] [-a] [-ls]\n") return []string{""}, false } path := argv[1] if strBegins(path,"/") { // should check if excecutable? _,exOK := showIfExecutable(path,"/",argv) fmt.Printf("--D-- %v exOK=%v\n",path,exOK) return []string{path},exOK } pathenv, efound := os.LookupEnv(list) if ! efound { fmt.Printf("--E-- which: no \"%s\" environment\n",list) return []string{""}, false } showall := isin("-a",argv) || 0 <= strings.Index(path,"*") dirv := strings.Split(pathenv,PATHSEP) ffound := false ffullpath := path for _, dir := range dirv { if 0 <= strings.Index(path,"*") { // by wild-card list,_ := ioutil.ReadDir(dir) ffullpath, ffound = showMatchFile(list,path,dir,argv) }else{ ffullpath, ffound = showIfExecutable(path,dir,argv) } //if ffound && !isin("-a", argv) { if ffound && !showall { break; } } return []string{ffullpath}, ffound } func stripLeadingWSParg(argv[]string)([]string){ for ; 0 < len(argv); { if len(argv[0]) == 0 { argv = argv[1:] }else{ break } } return argv } func xEval(argv []string, nlend bool){ argv = stripLeadingWSParg(argv) if len(argv) == 0 { fmt.Printf("eval [%%format] [Go-expression]\n") return } pfmt := "%v" if argv[0][0] == '%' { pfmt = argv[0] argv = argv[1:] } if len(argv) == 0 { return } gocode := strings.Join(argv," "); //fmt.Printf("eval [%v] [%v]\n",pfmt,gocode) fset := token.NewFileSet() rval, _ := types.Eval(fset,nil,token.NoPos,gocode) fmt.Printf(pfmt,rval.Value) if nlend { fmt.Printf("\n") } } func getval(name string) (found bool, val int) { /* should expand the name here */ if name == "gsh.pid" { return true, os.Getpid() }else if name == "gsh.ppid" { return true, os.Getppid() } return false, 0 } func echo(argv []string, nlend bool){ for ai := 1; ai < len(argv); ai++ { if 1 < ai { fmt.Printf(" "); } arg := argv[ai] found, val := getval(arg) if found { fmt.Printf("%d",val) }else{ fmt.Printf("%s",arg) } } if nlend { fmt.Printf("\n"); } } func resfile() string { return "gsh.tmp" } //var resF *File func resmap() { //_ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, os.ModeAppend) // https://developpaper.com/solution-to-golang-bad-file-descriptor-problem/ _ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, 0600) if err != nil { fmt.Printf("refF could not open: %s\n",err) }else{ fmt.Printf("refF opened\n") } } // @@2020-0821 func gshScanArg(str string,strip int)(argv []string){ var si = 0 var sb = 0 var inBracket = 0 var arg1 = make([]byte,LINESIZE) var ax = 0 debug := false for ; si < len(str); si++ { if str[si] != ' ' { break } } sb = si for ; si < len(str); si++ { if sb <= si { if debug { fmt.Printf("--Da- +%d %2d-%2d %s ... %s\n", inBracket,sb,si,arg1[0:ax],str[si:]) } } ch := str[si] if ch == '{' { inBracket += 1 if 0 < strip && inBracket <= strip { //fmt.Printf("stripLEV %d <= %d?\n",inBracket,strip) continue } } if 0 < inBracket { if ch == '}' { inBracket -= 1 if 0 < strip && inBracket < strip { //fmt.Printf("stripLEV %d < %d?\n",inBracket,strip) continue } } arg1[ax] = ch ax += 1 continue } if str[si] == ' ' { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,str[sb:si],string(str[si:])) } sb = si+1 ax = 0 continue } arg1[ax] = ch ax += 1 } if sb < si { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,string(arg1[0:ax]),string(str[si:])) } } if debug { fmt.Printf("--Da- %d [%s] => [%d]%v\n",strip,str,len(argv),argv) } return argv } // should get stderr (into tmpfile ?) and return func (gsh*GshContext)Popen(name,mode string)(pin*os.File,pout*os.File,err bool){ var pv = []int{-1,-1} mysyscall.Pipe(pv) xarg := gshScanArg(name,1) name = strings.Join(xarg," ") pin = os.NewFile(uintptr(pv[0]),"StdoutOf-{"+name+"}") pout = os.NewFile(uintptr(pv[1]),"StdinOf-{"+name+"}") fdix := 0 dir := "?" if mode == "r" { dir = "<" fdix = 1 // read from the stdout of the process }else{ dir = ">" fdix = 0 // write to the stdin of the process } gshPA := gsh.gshPA savfd := gshPA.Files[fdix] var fd uintptr = 0 if mode == "r" { //fd = pout.Fd() //gshPA.Files[fdix] = pout.Fd() gshPA.Files[fdix] = pout }else{ //fd = pin.Fd() //gshPA.Files[fdix] = pin.Fd() gshPA.Files[fdix] = pin } // should do this by Goroutine? if false { fmt.Printf("--Ip- Opened fd[%v] %s %v\n",fd,dir,name) fmt.Printf("--RED1 [%d,%d,%d]->[%d,%d,%d]\n", os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd(), pin.Fd(),pout.Fd(),pout.Fd()) } savi := os.Stdin savo := os.Stdout save := os.Stderr os.Stdin = pin os.Stdout = pout os.Stderr = pout gsh.BackGround = true gsh.gshelllh(name) gsh.BackGround = false os.Stdin = savi os.Stdout = savo os.Stderr = save gshPA.Files[fdix] = savfd return pin,pout,false } // External commands func (gsh*GshContext)excommand(exec bool, argv []string) (notf bool,exit bool) { if gsh.CmdTrace { fmt.Printf("--I-- excommand[%v](%v)\n",exec,argv) } gshPA := gsh.gshPA fullpathv, itis := which("PATH",[]string{"which",argv[0],"-s"}) if itis == false { return true,false } fullpath := fullpathv[0] argv = unescapeWhiteSPV(argv) if 0 < strings.Index(fullpath,".go") { nargv := argv // []string{} gofullpathv, itis := which("PATH",[]string{"which","go","-s"}) if itis == false { fmt.Printf("--F-- Go not found\n") return false,true } gofullpath := gofullpathv[0] nargv = []string{ gofullpath, "run", fullpath } fmt.Printf("--I-- %s {%s %s %s}\n",gofullpath, nargv[0],nargv[1],nargv[2]) if exec { syscall.Exec(gofullpath,nargv,os.Environ()) }else{ pid, _ := mysyscall.ForkExec(gofullpath,nargv,&gshPA) if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),nargv) gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) }else{ rusage := Mysyscall_Rusage {} mysyscall.Wait4(pid,nil,0,&rusage) gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage } } }else{ if exec { syscall.Exec(fullpath,argv,os.Environ()) }else{ pid, _ := mysyscall.ForkExec(fullpath,argv,&gshPA) //fmt.Printf("[%d]\n",pid); // '&' to be background if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),argv) gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) }else{ rusage := Mysyscall_Rusage {} mysyscall.Wait4(pid,nil,0,&rusage); gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage } } } return false,false } // Builtin Commands func (gshCtx *GshContext) sleep(argv []string) { if len(argv) < 2 { fmt.Printf("Sleep 100ms, 100us, 100ns, ...\n") return } duration := argv[1]; d, err := time.ParseDuration(duration) if err != nil { d, err = time.ParseDuration(duration+"s") if err != nil { fmt.Printf("duration ? %s (%s)\n",duration,err) return } } //fmt.Printf("Sleep %v\n",duration) time.Sleep(d) if 0 < len(argv[2:]) { gshCtx.gshellv(argv[2:]) } } func (gshCtx *GshContext)repeat(argv []string) { if len(argv) < 2 { return } start0 := time.Now() for ri,_ := strconv.Atoi(argv[1]); 0 < ri; ri-- { if 0 < len(argv[2:]) { //start := time.Now() gshCtx.gshellv(argv[2:]) end := time.Now() elps := end.Sub(start0); if( 1000000000 < elps ){ fmt.Printf("(repeat#%d %v)\n",ri,elps); } } } } func (gshCtx *GshContext)gen(argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: %s N\n",argv[0]) return } // should br repeated by "repeat" command count, _ := strconv.Atoi(argv[1]) fd := gshPA.Files[1] // Stdout //file := os.NewFile(fd,"internalStdOut") file := fd; fmt.Printf("--I-- Gen. Count=%d to [%d]\n",count,file.Fd()) //buf := []byte{} outdata := "0123 5678 0123 5678 0123 5678 0123 5678\r" for gi := 0; gi < count; gi++ { file.WriteString(outdata) } //file.WriteString("\n") fmt.Printf("\n(%d B)\n",count*len(outdata)); //file.Close() } // Remote Execution // 2020-0820 func Elapsed(from time.Time)(string){ elps := time.Now().Sub(from) if 1000000000 < elps { return fmt.Sprintf("[%5d.%02ds]",elps/1000000000,(elps%1000000000)/10000000) }else if 1000000 < elps { return fmt.Sprintf("[%3d.%03dms]",elps/1000000,(elps%1000000)/1000) }else{ return fmt.Sprintf("[%3d.%03dus]",elps/1000,(elps%1000)) } } func abbtime(nanos int64)(string){ if 1000000000 < nanos { return fmt.Sprintf("%d.%02ds",nanos/1000000000,(nanos%1000000000)/10000000) }else if 1000000 < nanos { return fmt.Sprintf("%d.%03dms",nanos/1000000,(nanos%1000000)/1000) }else{ return fmt.Sprintf("%d.%03dus",nanos/1000,(nanos%1000)) } } func abssize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%.3fKiB",fsize/1024) } } func absize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%8.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%8.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%8.3fKiB",fsize/1024) } } func abbspeed(totalB int64,ns int64)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGB/s",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMB/s",MBs) }else{ return fmt.Sprintf("%6.3fKB/s",MBs*1000) } } func abspeed(totalB int64,ns time.Duration)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGBps",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMBps",MBs) }else{ return fmt.Sprintf("%6.3fKBps",MBs*1000) } } func fileRelay(what string,in*os.File,out*os.File,size int64,bsiz int)(wcount int64){ Start := time.Now() buff := make([]byte,bsiz) var total int64 = 0 var rem int64 = size nio := 0 Prev := time.Now() var PrevSize int64 = 0 fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) START\n", what,absize(total),size,nio) for i:= 0; ; i++ { var len = bsiz if int(rem) < len { len = int(rem) } Now := time.Now() Elps := Now.Sub(Prev); if 1000000000 < Now.Sub(Prev) { fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %s\n", what,absize(total),size,nio, abspeed((total-PrevSize),Elps)) Prev = Now; PrevSize = total } rlen := len if in != nil { // should watch the disconnection of out rcc,err := in.Read(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"--En- X: %s read(%v,%v)<%v\n", what,rcc,err,in.Name()) break } rlen = rcc if string(buff[0:10]) == "((SoftEOF " { var ecc int64 = 0 fmt.Sscanf(string(buff),"((SoftEOF %v",&ecc) fmt.Printf(Elapsed(Start)+"--En- X: %s Recv ((SoftEOF %v))/%v\n", what,ecc,total) if ecc == total { break } } } wlen := rlen if out != nil { wcc,err := out.Write(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"-En-- X: %s write(%v,%v)>%v\n", what,wcc,err,out.Name()) break } wlen = wcc } if wlen < rlen { fmt.Printf(Elapsed(Start)+"--En- X: %s incomplete write (%v/%v)\n", what,wlen,rlen) break; } nio += 1 total += int64(rlen) rem -= int64(rlen) if rem <= 0 { break } } Done := time.Now() Elps := float64(Done.Sub(Start))/1000000000 //Seconds TotalMB := float64(total)/1000000 //MB MBps := TotalMB / Elps fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %v %.3fMB/s\n", what,total,size,nio,absize(total),MBps) return total } func tcpPush(clnt *os.File){ // shrink socket buffer and recover usleep(100); } func (gsh*GshContext)RexecServer(argv[]string){ debug := true Start0 := time.Now() Start := Start0 // if local == ":" { local = "0.0.0.0:9999" } local := "0.0.0.0:9999" if 0 < len(argv) { if argv[0] == "-s" { debug = false argv = argv[1:] } } if 0 < len(argv) { argv = argv[1:] } port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("--En- S: Address error: %s (%s)\n",local,err) return } fmt.Printf(Elapsed(Start)+"--In- S: Listening at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Listen error: %s (%s)\n",local,err) return } reqbuf := make([]byte,LINESIZE) res := "" for { fmt.Printf(Elapsed(Start0)+"--In- S: Listening at %s...\n",local); aconn, err := sconn.AcceptTCP() Start = time.Now() if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Accept error: %s (%s)\n",local,err) return } clnt, _ := aconn.File() fd := clnt.Fd() ar := aconn.RemoteAddr() if debug { fmt.Printf(Elapsed(Start0)+"--In- S: Accepted TCP at %s [%d] <- %v\n", local,fd,ar) } res = fmt.Sprintf("220 GShell/%s Server\r\n",VERSION) fmt.Fprintf(clnt,"%s",res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %s",res) } count, err := clnt.Read(reqbuf) if err != nil { fmt.Printf(Elapsed(Start)+"--En- C: (%v %v) %v", count,err,string(reqbuf)) } req := string(reqbuf[:count]) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",string(req)) } reqv := strings.Split(string(req),"\r") cmdv := gshScanArg(reqv[0],0) //cmdv := strings.Split(reqv[0]," ") switch cmdv[0] { case "HELO": res = fmt.Sprintf("250 %v",req) case "GET": // download {remotefile|-zN} [localfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var in *os.File = nil var pseudoEOF = false if 1 < len(cmdv) { fname = cmdv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() in = xin dsize = MaxStreamSize pseudoEOF = true } }else{ xin,err := os.Open(fname) if err != nil { fmt.Printf("--En- GET (%v)\n",err) }else{ defer xin.Close() in = xin fi,_ := xin.Stat() dsize = fi.Size() } } } //fmt.Printf(Elapsed(Start)+"--In- GET %v:%v\n",dsize,bsize) res = fmt.Sprintf("200 %v\r\n",dsize) fmt.Fprintf(clnt,"%v",res) tcpPush(clnt); // should be separated as line in receiver fmt.Printf(Elapsed(Start)+"--In- S: %v",res) wcount := fileRelay("SendGET",in,clnt,dsize,bsize) if pseudoEOF { in.Close() // pipe from the command // show end of stream data (its size) by OOB? SoftEOF := fmt.Sprintf("((SoftEOF %v))",wcount) fmt.Printf(Elapsed(Start)+"--In- S: Send %v\n",SoftEOF) tcpPush(clnt); // to let SoftEOF data apper at the top of recevied data fmt.Fprintf(clnt,"%v\r\n",SoftEOF) tcpPush(clnt); // to let SoftEOF alone in a packet (separate with 200 OK) // with client generated random? //fmt.Printf("--In- L: close %v (%v)\n",in.Fd(),in.Name()) } res = fmt.Sprintf("200 GET done\r\n") case "PUT": // upload {srcfile|-zN} [dstfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var out *os.File = nil if 1 < len(cmdv) { // localfile fmt.Sscanf(cmdv[1],"%d",&dsize) } if 2 < len(cmdv) { fname = cmdv[2] if fname == "-" { // nul dev }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) //fmt.Printf("--In- S: open(%v) out(%v) err(%v)\n",fname,xout,err) if err != nil { fmt.Printf("--En- PUT (%v)\n",err) }else{ out = xout } } fmt.Printf(Elapsed(Start)+"--In- L: open(%v,w) %v (%v)\n", fname,local,err) } fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) fmt.Printf(Elapsed(Start)+"--In- S: 200 %v OK\r\n",dsize) fmt.Fprintf(clnt,"200 %v OK\r\n",dsize) fileRelay("RecvPUT",clnt,out,dsize,bsize) res = fmt.Sprintf("200 PUT done\r\n") default: res = fmt.Sprintf("400 What? %v",req) } swcc,serr := clnt.Write([]byte(res)) if serr != nil { fmt.Printf(Elapsed(Start)+"--In- S: (wc=%v er=%v) %v",swcc,serr,res) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",res) } aconn.Close(); clnt.Close(); } sconn.Close(); } func (gsh*GshContext)RexecClient(argv[]string)(int,string){ debug := true Start := time.Now() if len(argv) == 1 { return -1,"EmptyARG" } argv = argv[1:] if argv[0] == "-serv" { gsh.RexecServer(argv[1:]) return 0,"Server" } remote := "0.0.0.0:9999" if argv[0][0] == '@' { remote = argv[0][1:] argv = argv[1:] } if argv[0] == "-s" { debug = false argv = argv[1:] } dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf(Elapsed(Start)+"Address error: %s (%s)\n",remote,err) return -1,"AddressError" } fmt.Printf(Elapsed(Start)+"--In- C: Connecting to %s\n",remote) serv, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf(Elapsed(Start)+"Connection error: %s (%s)\n",remote,err) return -1,"CannotConnect" } if debug { al := serv.LocalAddr() fmt.Printf(Elapsed(Start)+"--In- C: Connected to %v <- %v\n",remote,al) } req := "" res := make([]byte,LINESIZE) count,err := serv.Read(res) if err != nil { fmt.Printf("--En- S: (%3d,%v) %v",count,err,string(res)) } if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res)) } if argv[0] == "GET" { savPA := gsh.gshPA var bsize int = 64*1024 req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) fmt.Printf(Elapsed(Start)+"--In- C: %v",req) fmt.Fprintf(serv,req) count,err = serv.Read(res) if err != nil { }else{ var dsize int64 = 0 var out *os.File = nil var out_tobeclosed *os.File = nil var fname string = "" var rcode int = 0 var pid int = -1 fmt.Sscanf(string(res),"%d %d",&rcode,&dsize) fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) if 3 <= len(argv) { fname = argv[2] if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout out_tobeclosed = xout pid = 0 // should be its pid } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) if err != nil { fmt.Print("--En- %v\n",err) } out = xout //fmt.Printf("--In-- %d > %s\n",out.Fd(),fname) } } in,_ := serv.File() fileRelay("RecvGET",in,out,dsize,bsize) if 0 <= pid { gsh.gshPA = savPA // recovery of Fd(), and more? fmt.Printf(Elapsed(Start)+"--In- L: close Pipe > %v\n",fname) out_tobeclosed.Close() //syscall.Wait4(pid,nil,0,nil) //@@ } } }else if argv[0] == "PUT" { remote, _ := serv.File() var local *os.File = nil var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var ofile string = "-" //fmt.Printf("--I-- Rex %v\n",argv) if 1 < len(argv) { fname := argv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() //in = xin local = xin fmt.Printf("--In- [%d] < Upload output of %v\n", local.Fd(),fname) ofile = "-from."+fname dsize = MaxStreamSize } }else{ xlocal,err := os.Open(fname) if err != nil { fmt.Printf("--En- (%s)\n",err) local = nil }else{ local = xlocal fi,_ := local.Stat() dsize = fi.Size() defer local.Close() //fmt.Printf("--I-- Rex in(%v / %v)\n",ofile,dsize) } ofile = fname fmt.Printf(Elapsed(Start)+"--In- L: open(%v,r)=%v %v (%v)\n", fname,dsize,local,err) } } if 2 < len(argv) && argv[2] != "" { ofile = argv[2] //fmt.Printf("(%d)%v B.ofile=%v\n",len(argv),argv,ofile) } //fmt.Printf(Elapsed(Start)+"--I-- Rex out(%v)\n",ofile) fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) req = fmt.Sprintf("PUT %v %v \r\n",dsize,ofile) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) count,err = serv.Read(res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) } fileRelay("SendPUT",local,remote,dsize,bsize) }else{ req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) //fmt.Printf("--In- sending RexRequest(%v)\n",len(req)) } //fmt.Printf(Elapsed(Start)+"--In- waiting RexResponse...\n") count,err = serv.Read(res) ress := "" if count == 0 { ress = "(nil)\r\n" }else{ ress = string(res[:count]) } if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: (%d,%v) %v",count,err,ress) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",ress) } serv.Close() //conn.Close() var stat string var rcode int fmt.Sscanf(ress,"%d %s",&rcode,&stat) //fmt.Printf("--D-- Client: %v (%v)",rcode,stat) return rcode,ress } // Remote Shell // gcp file [...] { [host]:[port:][dir] | dir } // -p | -no-p func (gsh*GshContext)FileCopy(argv[]string){ var host = "" var port = "" var upload = false var download = false var xargv = []string{"rex-gcp"} var srcv = []string{} var dstv = []string{} argv = argv[1:] for _,v := range argv { /* if v[0] == '-' { // might be a pseudo file (generated date) continue } */ obj := strings.Split(v,":") //fmt.Printf("%d %v %v\n",len(obj),v,obj) if 1 < len(obj) { host = obj[0] file := "" if 0 < len(host) { gsh.LastServer.host = host }else{ host = gsh.LastServer.host port = gsh.LastServer.port } if 2 < len(obj) { port = obj[1] if 0 < len(port) { gsh.LastServer.port = port }else{ port = gsh.LastServer.port } file = obj[2] }else{ file = obj[1] } if len(srcv) == 0 { download = true srcv = append(srcv,file) continue } upload = true dstv = append(dstv,file) continue } /* idx := strings.Index(v,":") if 0 <= idx { remote = v[0:idx] if len(srcv) == 0 { download = true srcv = append(srcv,v[idx+1:]) continue } upload = true dstv = append(dstv,v[idx+1:]) continue } */ if download { dstv = append(dstv,v) }else{ srcv = append(srcv,v) } } hostport := "@" + host + ":" + port if upload { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"PUT") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v // %v\n",hostport,dstv,srcv,xargv) fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v\n",hostport,dstv,srcv) gsh.RexecClient(xargv) }else if download { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"GET") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v // %v\n",hostport,srcv,dstv,xargv) fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v\n",hostport,srcv,dstv) gsh.RexecClient(xargv) }else{ } } // target func (gsh*GshContext)Trelpath(rloc string)(string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(rloc) twd, _ := os.Getwd() os.Chdir(cwd) tpath := twd + "/" + rloc return tpath } // join to rmote GShell - [user@]host[:port] or cd host:[port]:path func (gsh*GshContext)Rjoin(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- current server = %v\n",gsh.RSERV) return } serv := argv[1] servv := strings.Split(serv,":") if 1 <= len(servv) { if servv[0] == "lo" { servv[0] = "localhost" } } switch len(servv) { case 1: //if strings.Index(serv,":") < 0 { serv = servv[0] + ":" + fmt.Sprintf("%d",GSH_PORT) //} case 2: // host:port serv = strings.Join(servv,":") } xargv := []string{"rex-join","@"+serv,"HELO"} rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Joined (%v) %v\n",rcode,stat) gsh.RSERV = serv }else{ fmt.Printf("--I-- NG, could not joined (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rexec(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- rexec command [ | {file || {command} ]\n",gsh.RSERV) return } /* nargv := gshScanArg(strings.Join(argv," "),0) fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) if nargv[1][0] != '{' { nargv[1] = "{" + nargv[1] + "}" fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) } argv = nargv */ nargv := []string{} nargv = append(nargv,"{"+strings.Join(argv[1:]," ")+"}") fmt.Printf("--D-- nargc=%d %v\n",len(nargv),nargv) argv = nargv xargv := []string{"rex-exec","@"+gsh.RSERV,"GET"} xargv = append(xargv,argv...) xargv = append(xargv,"/dev/tty") rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Rexec (%v) %v\n",rcode,stat) }else{ fmt.Printf("--I-- NG Rexec (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rchdir(argv[]string){ if len(argv) <= 1 { return } cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(argv[1]) twd, _ := os.Getwd() gsh.RWD = twd fmt.Printf("--I-- JWD=%v\n",twd) os.Chdir(cwd) } func (gsh*GshContext)Rpwd(argv[]string){ fmt.Printf("%v\n",gsh.RWD) } func (gsh*GshContext)Rls(argv[]string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) argv[0] = "-ls" gsh.xFind(argv) os.Chdir(cwd) } func (gsh*GshContext)Rput(argv[]string){ var local string = "" var remote string = "" if 1 < len(argv) { local = argv[1] remote = local // base name } if 2 < len(argv) { remote = argv[2] } fmt.Printf("--I-- jput from=%v to=%v\n",local,gsh.Trelpath(remote)) } func (gsh*GshContext)Rget(argv[]string){ var remote string = "" var local string = "" if 1 < len(argv) { remote = argv[1] local = remote // base name } if 2 < len(argv) { local = argv[2] } fmt.Printf("--I-- jget from=%v to=%v\n",gsh.Trelpath(remote),local) } // network // -s, -si, -so // bi-directional, source, sync (maybe socket) func (gshCtx*GshContext)sconnect(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -s [host]:[port[.udp]]\n") return } remote := argv[1] if remote == ":" { remote = "0.0.0.0:9999" } if inTCP { // TCP dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } conn, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); fd := file.Fd() fmt.Printf("Socket: connected to %s, socket[%d]\n",remote,fd) savfd := gshPA.Files[1] //gshPA.Files[1] = fd; gshPA.Files[1] = file; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() }else{ //dport, err := net.ResolveUDPAddr("udp4",remote); dport, err := net.ResolveUDPAddr("udp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } //conn, err := net.DialUDP("udp4",nil,dport) conn, err := net.DialUDP("udp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); fd := file.Fd() ar := conn.RemoteAddr() //al := conn.LocalAddr() fmt.Printf("Socket: connected to %s [%s], socket[%d]\n", remote,ar.String(),fd) savfd := gshPA.Files[1] //gshPA.Files[1] = fd; gshPA.Files[1] = file; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() } } func (gshCtx*GshContext)saccept(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -ac [host]:[port[.udp]]\n") return } local := argv[1] if local == ":" { local = "0.0.0.0:9999" } if inTCP { // TCP port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } //fmt.Printf("Listen at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } //fmt.Printf("Accepting at %s...\n",local); aconn, err := sconn.AcceptTCP() if err != nil { fmt.Printf("Accept error: %s (%s)\n",local,err) return } file, _ := aconn.File() fd := file.Fd() fmt.Printf("Accepted TCP at %s [%d]\n",local,fd) savfd := gshPA.Files[0] //gshPA.Files[0] = fd; gshPA.Files[0] = file; gshCtx.gshellv(argv[2:]) gshPA.Files[0] = savfd sconn.Close(); aconn.Close(); file.Close(); }else{ //port, err := net.ResolveUDPAddr("udp4",local); port, err := net.ResolveUDPAddr("udp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } fmt.Printf("Listen UDP at %s...\n",local); //uconn, err := net.ListenUDP("udp4", port) uconn, err := net.ListenUDP("udp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } file, _ := uconn.File() //fd := file.Fd() ar := uconn.RemoteAddr() remote := "" if ar != nil { remote = ar.String() } if remote == "" { remote = "?" } // not yet received //fmt.Printf("Accepted at %s [%d] <- %s\n",local,fd,"") savfd := gshPA.Files[0] //gshPA.Files[0] = fd; gshPA.Files[0] = file; savenv := gshPA.Env gshPA.Env = append(savenv, "REMOTE_HOST="+remote) gshCtx.gshellv(argv[2:]) gshPA.Env = savenv gshPA.Files[0] = savfd uconn.Close(); file.Close(); } } // empty line command func (gshCtx*GshContext)xPwd(argv[]string){ // execute context command, pwd + date // context notation, representation scheme, to be resumed at re-login cwd, _ := os.Getwd() switch { case isin("-a",argv): gshCtx.ShowChdirHistory(argv) case isin("-ls",argv): showFileInfo(cwd,argv) default: fmt.Printf("%s\n",cwd) case isin("-v",argv): // obsolete emtpy command t := time.Now() date := t.Format(time.UnixDate) exe, _ := os.Executable() host, _ := os.Hostname() fmt.Printf("{PWD=\"%s\"",cwd) fmt.Printf(" HOST=\"%s\"",host) fmt.Printf(" DATE=\"%s\"",date) fmt.Printf(" TIME=\"%s\"",t.String()) fmt.Printf(" PID=\"%d\"",os.Getpid()) fmt.Printf(" EXE=\"%s\"",exe) fmt.Printf("}\n") } } // History // these should be browsed and edited by HTTP browser // show the time of command with -t and direcotry with -ls // openfile-history, sort by -a -m -c // sort by elapsed time by -t -s // search by "more" like interface // edit history // sort history, and wc or uniq // CPU and other resource consumptions // limit showing range (by time or so) // export / import history func (gshCtx *GshContext)xHistory(argv []string){ atWorkDirX := -1 if 1 < len(argv) && strBegins(argv[1],"@") { atWorkDirX,_ = strconv.Atoi(argv[1][1:]) } //fmt.Printf("--D-- showHistory(%v)\n",argv) for i, v := range gshCtx.CommandHistory { // exclude commands not to be listed by default // internal commands may be suppressed by default if v.CmdLine == "" && !isin("-a",argv) { continue; } if 0 <= atWorkDirX { if v.WorkDirX != atWorkDirX { continue } } if !isin("-n",argv){ // like "fc" fmt.Printf("!%-2d ",i) } if isin("-v",argv){ fmt.Println(v) // should be with it date }else{ if isin("-l",argv) || isin("-l0",argv) { elps := v.EndAt.Sub(v.StartAt); start := v.StartAt.Format(time.Stamp) fmt.Printf("@%d ",v.WorkDirX) fmt.Printf("[%v] %11v/t ",start,elps) } if isin("-l",argv) && !isin("-l0",argv){ fmt.Printf("%v",Rusagef("%t %u\t// %s",argv,v.Rusagev)) } if isin("-at",argv) { // isin("-ls",argv){ dhi := v.WorkDirX // workdir history index fmt.Printf("@%d %s\t",dhi,v.WorkDir) // show the FileInfo of the output command?? } fmt.Printf("%s",v.CmdLine) fmt.Printf("\n") } } } // !n - history index func searchHistory(gshCtx GshContext, gline string) (string, bool, bool){ if gline[0] == '!' { hix, err := strconv.Atoi(gline[1:]) if err != nil { fmt.Printf("--E-- (%s : range)\n",hix) return "", false, true } if hix < 0 || len(gshCtx.CommandHistory) <= hix { fmt.Printf("--E-- (%d : out of range)\n",hix) return "", false, true } return gshCtx.CommandHistory[hix].CmdLine, false, false } // search //for i, v := range gshCtx.CommandHistory { //} return gline, false, false } func (gsh*GshContext)cmdStringInHistory(hix int)(cmd string, ok bool){ if 0 <= hix && hix < len(gsh.CommandHistory) { return gsh.CommandHistory[hix].CmdLine,true } return "",false } // temporary adding to PATH environment // cd name -lib for LD_LIBRARY_PATH // chdir with directory history (date + full-path) // -s for sort option (by visit date or so) func (gsh*GshContext)ShowChdirHistory1(i int,v GChdirHistory, argv []string){ fmt.Printf("!%-2d ",v.CmdIndex) // the first command at this WorkDir fmt.Printf("@%d ",i) fmt.Printf("[%v] ",v.MovedAt.Format(time.Stamp)) showFileInfo(v.Dir,argv) } func (gsh*GshContext)ShowChdirHistory(argv []string){ for i, v := range gsh.ChdirHistory { gsh.ShowChdirHistory1(i,v,argv) } } func skipOpts(argv[]string)(int){ for i,v := range argv { if strBegins(v,"-") { }else{ return i } } return -1 } func (gshCtx*GshContext)xChdir(argv []string){ cdhist := gshCtx.ChdirHistory if isin("?",argv ) || isin("-t",argv) || isin("-a",argv) { gshCtx.ShowChdirHistory(argv) return } pwd, _ := os.Getwd() dir := "" if len(argv) <= 1 { dir = toFullpath("~") }else{ i := skipOpts(argv[1:]) if i < 0 { dir = toFullpath("~") }else{ dir = argv[1+i] } } if strBegins(dir,"@") { if dir == "@0" { // obsolete dir = gshCtx.StartDir }else if dir == "@!" { index := len(cdhist) - 1 if 0 < index { index -= 1 } dir = cdhist[index].Dir }else{ index, err := strconv.Atoi(dir[1:]) if err != nil { fmt.Printf("--E-- xChdir(%v)\n",err) dir = "?" }else if len(gshCtx.ChdirHistory) <= index { fmt.Printf("--E-- xChdir(history range error)\n") dir = "?" }else{ dir = cdhist[index].Dir } } } if dir != "?" { err := os.Chdir(dir) if err != nil { fmt.Printf("--E-- xChdir(%s)(%v)\n",argv[1],err) }else{ cwd, _ := os.Getwd() if cwd != pwd { hist1 := GChdirHistory { } hist1.Dir = cwd hist1.MovedAt = time.Now() hist1.CmdIndex = len(gshCtx.CommandHistory)+1 gshCtx.ChdirHistory = append(cdhist,hist1) if !isin("-s",argv){ //cwd, _ := os.Getwd() //fmt.Printf("%s\n",cwd) ix := len(gshCtx.ChdirHistory)-1 gshCtx.ShowChdirHistory1(ix,hist1,argv) } } } } if isin("-ls",argv){ cwd, _ := os.Getwd() showFileInfo(cwd,argv); } } func TimeValSub(tv1 *syscall.Timeval, tv2 *syscall.Timeval){ *tv1 = syscall.NsecToTimeval(tv1.Nano() - tv2.Nano()) } func RusageSubv(ru1, ru2 [2]Mysyscall_Rusage)([2]Mysyscall_Rusage){ TimeValSub(&ru1[0].Utime,&ru2[0].Utime) TimeValSub(&ru1[0].Stime,&ru2[0].Stime) TimeValSub(&ru1[1].Utime,&ru2[1].Utime) TimeValSub(&ru1[1].Stime,&ru2[1].Stime) return ru1 } func TimeValAdd(tv1 syscall.Timeval, tv2 syscall.Timeval)(syscall.Timeval){ tvs := syscall.NsecToTimeval(tv1.Nano() + tv2.Nano()) return tvs } /* func RusageAddv(ru1, ru2 [2]Mysyscall_Rusage)([2]Msyscall_Rusage){ TimeValAdd(ru1[0].Utime,ru2[0].Utime) TimeValAdd(ru1[0].Stime,ru2[0].Stime) TimeValAdd(ru1[1].Utime,ru2[1].Utime) TimeValAdd(ru1[1].Stime,ru2[1].Stime) return ru1 } */ // Resource Usage func sRusagef(fmtspec string, argv []string, ru [2]Mysyscall_Rusage)(string){ // ru[0] self , ru[1] children ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) uu := (int64(ut.Sec)*1000000 + int64(ut.Usec)) * 1000 su := (int64(st.Sec)*1000000 + int64(st.Usec)) * 1000 tu := uu + su ret := fmt.Sprintf("%v/sum",abbtime(tu)) ret += fmt.Sprintf(", %v/usr",abbtime(uu)) ret += fmt.Sprintf(", %v/sys",abbtime(su)) return ret } func Rusagef(fmtspec string, argv []string, ru [2]Mysyscall_Rusage)(string){ ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) fmt.Printf("%d.%06ds/u ",ut.Sec,ut.Usec) //ru[1].Utime.Sec,ru[1].Utime.Usec) fmt.Printf("%d.%06ds/s ",st.Sec,st.Usec) //ru[1].Stime.Sec,ru[1].Stime.Usec) return "" } func Getrusagev()([2]Mysyscall_Rusage){ var ruv = [2]Mysyscall_Rusage{} mysyscall.Getrusage(mysyscall.RUSAGE_SELF,&ruv[0]) mysyscall.Getrusage(mysyscall.RUSAGE_CHILDREN,&ruv[1]) return ruv } func showRusage(what string,argv []string, ru *Mysyscall_Rusage){ fmt.Printf("%s: ",what); fmt.Printf("Usr=%d.%06ds",ru.Utime.Sec,ru.Utime.Usec) fmt.Printf(" Sys=%d.%06ds",ru.Stime.Sec,ru.Stime.Usec) fmt.Printf(" Rss=%vB",ru.Maxrss) if isin("-l",argv) { fmt.Printf(" MinFlt=%v",ru.Minflt) fmt.Printf(" MajFlt=%v",ru.Majflt) fmt.Printf(" IxRSS=%vB",ru.Ixrss) fmt.Printf(" IdRSS=%vB",ru.Idrss) fmt.Printf(" Nswap=%vB",ru.Nswap) fmt.Printf(" Read=%v",ru.Inblock) fmt.Printf(" Write=%v",ru.Oublock) } fmt.Printf(" Snd=%v",ru.Msgsnd) fmt.Printf(" Rcv=%v",ru.Msgrcv) //if isin("-l",argv) { fmt.Printf(" Sig=%v",ru.Nsignals) //} fmt.Printf("\n"); } func (gshCtx *GshContext)xTime(argv[]string)(bool){ if 2 <= len(argv){ gshCtx.LastRusage = Mysyscall_Rusage{} rusagev1 := Getrusagev() fin := gshCtx.gshellv(argv[1:]) rusagev2 := Getrusagev() showRusage(argv[1],argv,&gshCtx.LastRusage) rusagev := RusageSubv(rusagev2,rusagev1) showRusage("self",argv,&rusagev[0]) showRusage("chld",argv,&rusagev[1]) return fin }else{ rusage:= Mysyscall_Rusage {} mysyscall.Getrusage(mysyscall.RUSAGE_SELF,&rusage) showRusage("self",argv, &rusage) mysyscall.Getrusage(mysyscall.RUSAGE_CHILDREN,&rusage) showRusage("chld",argv, &rusage) return false } } func (gshCtx *GshContext)xJobs(argv[]string){ fmt.Printf("%d Jobs\n",len(gshCtx.BackGroundJobs)) for ji, pid := range gshCtx.BackGroundJobs { //wstat := syscall.WaitStatus {0} rusage := Mysyscall_Rusage {} //wpid, err := syscall.Wait4(pid,&wstat,Mysyscall_WNOHANG,&rusage); wpid, err := mysyscall.Wait4(pid,nil,mysyscall.WNOHANG,&rusage); if err != nil { fmt.Printf("--E-- %%%d [%d] (%v)\n",ji,pid,err) }else{ fmt.Printf("%%%d[%d](%d)\n",ji,pid,wpid) showRusage("chld",argv,&rusage) } } } func (gsh*GshContext)inBackground(argv[]string)(bool){ if gsh.CmdTrace { fmt.Printf("--I-- inBackground(%v)\n",argv) } gsh.BackGround = true // set background option xfin := false xfin = gsh.gshellv(argv) gsh.BackGround = false return xfin } // -o file without command means just opening it and refer by #N // should be listed by "files" comnmand func (gshCtx*GshContext)xOpen(argv[]string){ var pv = []int{-1,-1} err := mysyscall.Pipe(pv) fmt.Printf("--I-- pipe()=[#%d,#%d](%v)\n",pv[0],pv[1],err) } func (gshCtx*GshContext)fromPipe(argv[]string){ } func (gshCtx*GshContext)xClose(argv[]string){ } // redirect func (gshCtx*GshContext)redirect(argv[]string)(bool){ if len(argv) < 2 { return false } cmd := argv[0] fname := argv[1] var file *os.File = nil fdix := 0 mode := os.O_RDONLY switch { case cmd == "-i" || cmd == "<": fdix = 0 mode = os.O_RDONLY case cmd == "-o" || cmd == ">": fdix = 1 mode = os.O_RDWR | os.O_CREATE case cmd == "-a" || cmd == ">>": fdix = 1 mode = os.O_RDWR | os.O_CREATE | os.O_APPEND } if fname[0] == '#' { fd, err := strconv.Atoi(fname[1:]) if err != nil { fmt.Printf("--E-- (%v)\n",err) return false } file = os.NewFile(uintptr(fd),"MaybePipe") }else{ xfile, err := os.OpenFile(argv[1], mode, 0600) if err != nil { fmt.Printf("--E-- (%s)\n",err) return false } file = xfile } gshPA := gshCtx.gshPA savfd := gshPA.Files[fdix] //gshPA.Files[fdix] = file.Fd() gshPA.Files[fdix] = file fmt.Printf("--I-- Opened [%d] %s\n",file.Fd(),argv[1]) gshCtx.gshellv(argv[2:]) gshPA.Files[fdix] = savfd return false } //fmt.Fprintf(res, "GShell Status: %q", html.EscapeString(req.URL.Path)) func httpHandler(res http.ResponseWriter, req *http.Request){ path := req.URL.Path fmt.Printf("--I-- Got HTTP Request(%s)\n",path) { gshCtxBuf, _ := setupGshContext() gshCtx := &gshCtxBuf fmt.Printf("--I-- %s\n",path[1:]) gshCtx.tgshelll(path[1:]) } fmt.Fprintf(res, "Hello(^-^)//\n%s\n",path) } func (gshCtx *GshContext) httpServer(argv []string){ http.HandleFunc("/", httpHandler) accport := "localhost:9999" fmt.Printf("--I-- HTTP Server Start at [%s]\n",accport) http.ListenAndServe(accport,nil) } func (gshCtx *GshContext)xGo(argv[]string){ go gshCtx.gshellv(argv[1:]); } func (gshCtx *GshContext) xPs(argv[]string)(){ } // Plugin // plugin [-ls [names]] to list plugins // Reference: plugin source code func (gshCtx *GshContext) whichPlugin(name string,argv[]string)(pi *PluginInfo){ pi = nil for _,p := range gshCtx.PluginFuncs { if p.Name == name && pi == nil { pi = &p } if !isin("-s",argv){ //fmt.Printf("%v %v ",i,p) if isin("-ls",argv){ showFileInfo(p.Path,argv) }else{ fmt.Printf("%s\n",p.Name) } } } return pi } func (gshCtx *GshContext) xPlugin(argv[]string) (error) { if len(argv) == 0 || argv[0] == "-ls" { gshCtx.whichPlugin("",argv) return nil } name := argv[0] Pin := gshCtx.whichPlugin(name,[]string{"-s"}) if Pin != nil { os.Args = argv // should be recovered? Pin.Addr.(func())() return nil } sofile := toFullpath(argv[0] + ".so") // or find it by which($PATH) p, err := plugin.Open(sofile) if err != nil { fmt.Printf("--E-- plugin.Open(%s)(%v)\n",sofile,err) return err } fname := "Main" f, err := p.Lookup(fname) if( err != nil ){ fmt.Printf("--E-- plugin.Lookup(%s)(%v)\n",fname,err) return err } pin := PluginInfo {p,f,name,sofile} gshCtx.PluginFuncs = append(gshCtx.PluginFuncs,pin) fmt.Printf("--I-- added (%d)\n",len(gshCtx.PluginFuncs)) //fmt.Printf("--I-- first call(%s:%s)%v\n",sofile,fname,argv) os.Args = argv f.(func())() return err } func (gshCtx*GshContext)Args(argv[]string){ for i,v := range os.Args { fmt.Printf("[%v] %v\n",i,v) } } func (gshCtx *GshContext) showVersion(argv[]string){ if isin("-l",argv) { fmt.Printf("%v/%v (%v)",NAME,VERSION,DATE); }else{ fmt.Printf("%v",VERSION); } if isin("-a",argv) { fmt.Printf(" %s",AUTHOR) } if !isin("-n",argv) { fmt.Printf("\n") } } // Scanf // string decomposer // scanf [format] [input] func scanv(sstr string)(strv[]string){ strv = strings.Split(sstr," ") return strv } func scanUntil(src,end string)(rstr string,leng int){ idx := strings.Index(src,end) if 0 <= idx { rstr = src[0:idx] return rstr,idx+len(end) } return src,0 } // -bn -- display base-name part only // can be in some %fmt, for sed rewriting func (gsh*GshContext)printVal(fmts string, vstr string, optv[]string){ //vint,err := strconv.Atoi(vstr) var ival int64 = 0 n := 0 err := error(nil) if strBegins(vstr,"_") { vx,_ := strconv.Atoi(vstr[1:]) if vx < len(gsh.iValues) { vstr = gsh.iValues[vx] }else{ } } // should use Eval() if strBegins(vstr,"0x") { n,err = fmt.Sscanf(vstr[2:],"%x",&ival) }else{ n,err = fmt.Sscanf(vstr,"%d",&ival) //fmt.Printf("--D-- n=%d err=(%v) {%s}=%v\n",n,err,vstr, ival) } if n == 1 && err == nil { //fmt.Printf("--D-- formatn(%v) ival(%v)\n",fmts,ival) fmt.Printf("%"+fmts,ival) }else{ if isin("-bn",optv){ fmt.Printf("%"+fmts,filepath.Base(vstr)) }else{ fmt.Printf("%"+fmts,vstr) } } } func (gsh*GshContext)printfv(fmts,div string,argv[]string,optv[]string,list[]string){ //fmt.Printf("{%d}",len(list)) //curfmt := "v" outlen := 0 curfmt := gsh.iFormat if 0 < len(fmts) { for xi := 0; xi < len(fmts); xi++ { fch := fmts[xi] if fch == '%' { if xi+1 < len(fmts) { curfmt = string(fmts[xi+1]) gsh.iFormat = curfmt xi += 1 if xi+1 < len(fmts) && fmts[xi+1] == '(' { vals,leng := scanUntil(fmts[xi+2:],")") //fmt.Printf("--D-- show fmt(%v) val(%v) next(%v)\n",curfmt,vals,leng) gsh.printVal(curfmt,vals,optv) xi += 2+leng-1 outlen += 1 } continue } } if fch == '_' { hi,leng := scanInt(fmts[xi+1:]) if 0 < leng { if hi < len(gsh.iValues) { gsh.printVal(curfmt,gsh.iValues[hi],optv) outlen += 1 // should be the real length }else{ fmt.Printf("((out-range))") } xi += leng continue; } } fmt.Printf("%c",fch) outlen += 1 } }else{ //fmt.Printf("--D-- print {%s}\n") for i,v := range list { if 0 < i { fmt.Printf(div) } gsh.printVal(curfmt,v,optv) outlen += 1 } } if 0 < outlen { fmt.Printf("\n") } } func (gsh*GshContext)Scanv(argv[]string){ //fmt.Printf("--D-- Scanv(%v)\n",argv) if len(argv) == 1 { return } argv = argv[1:] fmts := "" if strBegins(argv[0],"-F") { fmts = argv[0] gsh.iDelimiter = fmts argv = argv[1:] } input := strings.Join(argv," ") if fmts == "" { // simple decomposition v := scanv(input) gsh.iValues = v //fmt.Printf("%v\n",strings.Join(v,",")) }else{ v := make([]string,8) n,err := fmt.Sscanf(input,fmts,&v[0],&v[1],&v[2],&v[3]) fmt.Printf("--D-- Scanf ->(%v) n=%d err=(%v)\n",v,n,err) gsh.iValues = v } } func (gsh*GshContext)Printv(argv[]string){ if false { //@@U fmt.Printf("%v\n",strings.Join(argv[1:]," ")) return } //fmt.Printf("--D-- Printv(%v)\n",argv) //fmt.Printf("%v\n",strings.Join(gsh.iValues,",")) div := gsh.iDelimiter fmts := "" argv = argv[1:] if 0 < len(argv) { if strBegins(argv[0],"-F") { div = argv[0][2:] argv = argv[1:] } } optv := []string{} for _,v := range argv { if strBegins(v,"-"){ optv = append(optv,v) argv = argv[1:] }else{ break; } } if 0 < len(argv) { fmts = strings.Join(argv," ") } gsh.printfv(fmts,div,argv,optv,gsh.iValues) } func (gsh*GshContext)Basename(argv[]string){ for i,v := range gsh.iValues { gsh.iValues[i] = filepath.Base(v) } } func (gsh*GshContext)Sortv(argv[]string){ sv := gsh.iValues sort.Slice(sv , func(i,j int) bool { return sv[i] < sv[j] }) } func (gsh*GshContext)Shiftv(argv[]string){ vi := len(gsh.iValues) if 0 < vi { if isin("-r",argv) { top := gsh.iValues[0] gsh.iValues = append(gsh.iValues[1:],top) }else{ gsh.iValues = gsh.iValues[1:] } } } func (gsh*GshContext)Enq(argv[]string){ } func (gsh*GshContext)Deq(argv[]string){ } func (gsh*GshContext)Push(argv[]string){ gsh.iValStack = append(gsh.iValStack,argv[1:]) fmt.Printf("depth=%d\n",len(gsh.iValStack)) } func (gsh*GshContext)Dump(argv[]string){ for i,v := range gsh.iValStack { fmt.Printf("%d %v\n",i,v) } } func (gsh*GshContext)Pop(argv[]string){ depth := len(gsh.iValStack) if 0 < depth { v := gsh.iValStack[depth-1] if isin("-cat",argv){ gsh.iValues = append(gsh.iValues,v...) }else{ gsh.iValues = v } gsh.iValStack = gsh.iValStack[0:depth-1] fmt.Printf("depth=%d %s\n",len(gsh.iValStack),gsh.iValues) }else{ fmt.Printf("depth=%d\n",depth) } } // Command Interpreter func (gshCtx*GshContext)gshellv(argv []string) (fin bool) { fin = false if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv((%d))\n",len(argv)) } if len(argv) <= 0 { return false } xargv := []string{} for ai := 0; ai < len(argv); ai++ { xargv = append(xargv,strsubst(gshCtx,argv[ai],false)) } argv = xargv if false { for ai := 0; ai < len(argv); ai++ { fmt.Printf("[%d] %s [%d]%T\n", ai,argv[ai],len(argv[ai]),argv[ai]) } } cmd := argv[0] if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv(%d)%v\n",len(argv),argv) } switch { // https://tour.golang.org/flowcontrol/11 case cmd == "": gshCtx.xPwd([]string{}); // emtpy command case cmd == "-x": gshCtx.CmdTrace = ! gshCtx.CmdTrace case cmd == "-xt": gshCtx.CmdTime = ! gshCtx.CmdTime case cmd == "-ot": gshCtx.sconnect(true, argv) case cmd == "-ou": gshCtx.sconnect(false, argv) case cmd == "-it": gshCtx.saccept(true , argv) case cmd == "-iu": gshCtx.saccept(false, argv) case cmd == "-i" || cmd == "<" || cmd == "-o" || cmd == ">" || cmd == "-a" || cmd == ">>" || cmd == "-s" || cmd == "><": gshCtx.redirect(argv) case cmd == "|": gshCtx.fromPipe(argv) case cmd == "args": gshCtx.Args(argv) case cmd == "bg" || cmd == "-bg": rfin := gshCtx.inBackground(argv[1:]) return rfin case cmd == "-bn": gshCtx.Basename(argv) case cmd == "call": _,_ = gshCtx.excommand(false,argv[1:]) case cmd == "cd" || cmd == "chdir": gshCtx.xChdir(argv); case cmd == "-cksum": gshCtx.xFind(argv) case cmd == "-sum": gshCtx.xFind(argv) case cmd == "-sumtest": str := "" if 1 < len(argv) { str = argv[1] } crc := strCRC32(str,uint64(len(str))) fprintf(stderr,"%v %v\n",crc,len(str)) case cmd == "close": gshCtx.xClose(argv) case cmd == "gcp": gshCtx.FileCopy(argv) case cmd == "dec" || cmd == "decode": gshCtx.Dec(argv) case cmd == "#define": case cmd == "dic" || cmd == "d": xDic(argv) case cmd == "dump": gshCtx.Dump(argv) case cmd == "echo" || cmd == "e": echo(argv,true) case cmd == "enc" || cmd == "encode": gshCtx.Enc(argv) case cmd == "env": env(argv) case cmd == "eval": xEval(argv[1:],true) case cmd == "ev" || cmd == "events": dumpEvents(argv) case cmd == "exec": _,_ = gshCtx.excommand(true,argv[1:]) // should not return here case cmd == "exit" || cmd == "quit": // write Result code EXIT to 3> return true case cmd == "fdls": // dump the attributes of fds (of other process) case cmd == "-find" || cmd == "fin" || cmd == "ufind" || cmd == "uf": gshCtx.xFind(argv[1:]) case cmd == "fu": gshCtx.xFind(argv[1:]) case cmd == "fork": // mainly for a server case cmd == "-gen": gshCtx.gen(argv) case cmd == "-go": gshCtx.xGo(argv) case cmd == "-grep": gshCtx.xFind(argv) case cmd == "gdeq": gshCtx.Deq(argv) case cmd == "genq": gshCtx.Enq(argv) case cmd == "gpop": gshCtx.Pop(argv) case cmd == "gpush": gshCtx.Push(argv) case cmd == "history" || cmd == "hi": // hi should be alias gshCtx.xHistory(argv) case cmd == "jobs": gshCtx.xJobs(argv) case cmd == "lnsp" || cmd == "nlsp": gshCtx.SplitLine(argv) case cmd == "-ls": gshCtx.xFind(argv) case cmd == "nop": // do nothing case cmd == "pipe": gshCtx.xOpen(argv) case cmd == "plug" || cmd == "plugin" || cmd == "pin": gshCtx.xPlugin(argv[1:]) case cmd == "print" || cmd == "-pr": // output internal slice // also sprintf should be gshCtx.Printv(argv) case cmd == "ps": gshCtx.xPs(argv) case cmd == "pstitle": // to be gsh.title case cmd == "rexecd" || cmd == "rexd": gshCtx.RexecServer(argv) case cmd == "rexec" || cmd == "rex": gshCtx.RexecClient(argv) case cmd == "repeat" || cmd == "rep": // repeat cond command gshCtx.repeat(argv) case cmd == "replay": gshCtx.xReplay(argv) case cmd == "scan": // scan input (or so in fscanf) to internal slice (like Files or map) gshCtx.Scanv(argv) case cmd == "set": // set name ... case cmd == "serv": gshCtx.httpServer(argv) case cmd == "shift": gshCtx.Shiftv(argv) case cmd == "sleep": gshCtx.sleep(argv) case cmd == "-sort": gshCtx.Sortv(argv) case cmd == "j" || cmd == "join": gshCtx.Rjoin(argv) case cmd == "a" || cmd == "alpa": gshCtx.Rexec(argv) case cmd == "jcd" || cmd == "jchdir": gshCtx.Rchdir(argv) case cmd == "jget": gshCtx.Rget(argv) case cmd == "jls": gshCtx.Rls(argv) case cmd == "jput": gshCtx.Rput(argv) case cmd == "jpwd": gshCtx.Rpwd(argv) case cmd == "time": fin = gshCtx.xTime(argv) case cmd == "ungets": if 1 < len(argv) { ungets(argv[1]+"\n") }else{ } case cmd == "pwd": gshCtx.xPwd(argv); case cmd == "ver" || cmd == "-ver" || cmd == "version": gshCtx.showVersion(argv) case cmd == "where": // data file or so? case cmd == "which": which("PATH",argv); case cmd == "gj" && 1 < len(argv) && argv[1] == "listen": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "serve": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "join": go gj_client(argv[1:]); case cmd == "gj": jsend(argv); case cmd == "jsend": jsend(argv); default: if gshCtx.whichPlugin(cmd,[]string{"-s"}) != nil { gshCtx.xPlugin(argv) }else{ notfound,_ := gshCtx.excommand(false,argv) if notfound { fmt.Printf("--E-- command not found (%v)\n",cmd) } } } return fin } func (gsh*GshContext)gshelll(gline string) (rfin bool) { argv := strings.Split(string(gline)," ") fin := gsh.gshellv(argv) return fin } func (gsh*GshContext)tgshelll(gline string)(xfin bool){ start := time.Now() fin := gsh.gshelll(gline) end := time.Now() elps := end.Sub(start); if gsh.CmdTime { fmt.Printf("--T-- " + time.Now().Format(time.Stamp) + "(%d.%09ds)\n", elps/1000000000,elps%1000000000) } return fin } func Ttyid() (int) { fi, err := os.Stdin.Stat() if err != nil { return 0; } //fmt.Printf("Stdin: %v Dev=%d\n", // fi.Mode(),fi.Mode()&os.ModeDevice) if (fi.Mode() & os.ModeDevice) != 0 { stat := Mysyscall_Stat_t{}; err := mysyscall.Fstat(0,&stat) if err != nil { //fmt.Printf("--I-- Stdin: (%v)\n",err) }else{ //fmt.Printf("--I-- Stdin: rdev=%d %d\n", // stat.Rdev&0xFF,stat.Rdev); //fmt.Printf("--I-- Stdin: tty%d\n",stat.Rdev&0xFF); return int(stat.Rdev & 0xFF) } } return 0 } func (gshCtx *GshContext) ttyfile() string { //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) ttyfile := gshCtx.GshHomeDir + "/" + "gsh-tty" + fmt.Sprintf("%02d",gshCtx.TerminalId) //strconv.Itoa(gshCtx.TerminalId) //fmt.Printf("--I-- ttyfile=%s\n",ttyfile) return ttyfile } func (gshCtx *GshContext) ttyline()(*os.File){ file, err := os.OpenFile(gshCtx.ttyfile(),os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if err != nil { fmt.Printf("--F-- cannot open %s (%s)\n",gshCtx.ttyfile(),err) return file; } return file } func (gshCtx *GshContext)getline(hix int, skipping bool, prevline string) (string) { if( skipping ){ reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) }else if true { return xgetline(hix,prevline,gshCtx) } /* else if( with_exgetline && gshCtx.GetLine != "" ){ //var xhix int64 = int64(hix); // cast newenv := os.Environ() newenv = append(newenv, "GSH_LINENO="+strconv.FormatInt(int64(hix),10) ) tty := gshCtx.ttyline() tty.WriteString(prevline) Pa := os.ProcAttr { "", // start dir newenv, //os.Environ(), []*os.File{os.Stdin,os.Stdout,os.Stderr,tty}, nil, } //fmt.Printf("--I-- getline=%s // %s\n",gsh_getlinev[0],gshCtx.GetLine) proc, err := os.StartProcess(gsh_getlinev[0],[]string{"getline","getline"},&Pa) if err != nil { fmt.Printf("--F-- getline process error (%v)\n",err) // for ; ; { } return "exit (getline program failed)" } //stat, err := proc.Wait() proc.Wait() buff := make([]byte,LINESIZE) count, err := tty.Read(buff) //_, err = tty.Read(buff) //fmt.Printf("--D-- getline (%d)\n",count) if err != nil { if ! (count == 0) { // && err.String() == "EOF" ) { fmt.Printf("--E-- getline error (%s)\n",err) } }else{ //fmt.Printf("--I-- getline OK \"%s\"\n",buff) } tty.Close() gline := string(buff[0:count]) return gline }else */ { // if isatty { fmt.Printf("!%d",hix) fmt.Print(PROMPT) // } reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) } } //== begin ======================================================= getline /* * getline.c * 2020-0819 extracted from dog.c * getline.go * 2020-0822 ported to Go */ /* package main // getline main import ( "fmt" // fmt "strings" // strings "os" // os "syscall" // syscall //"bytes" // os //"os/exec" // os ) */ // C language compatibility functions var errno = 0 var stdin *os.File = os.Stdin var stdout *os.File = os.Stdout var stderr *os.File = os.Stderr var EOF = -1 var NULL = 0 type FILE os.File type StrBuff []byte var NULL_FP *os.File = nil var NULLSP = 0 //var LINESIZE = 1024 func system(cmdstr string)(int){ PA := Mysyscall_ProcAttr { "", // the starting directory os.Environ(), //[]uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, []*os.File{os.Stdin,os.Stdout,os.Stderr}, nil, } argv := strings.Split(cmdstr," ") pid,err := mysyscall.ForkExec(argv[0],argv,&PA) if( err != nil ){ fmt.Printf("--E-- syscall(%v) err(%v)\n",cmdstr,err) } mysyscall.Wait4(pid,nil,0,nil) /* argv := strings.Split(cmdstr," ") fmt.Fprintf(os.Stderr,"--I-- system(%v)\n",argv) //cmd := exec.Command(argv[0:]...) cmd := exec.Command(argv[0],argv[1],argv[2]) cmd.Stdin = strings.NewReader("output of system") var out bytes.Buffer cmd.Stdout = &out var serr bytes.Buffer cmd.Stderr = &serr err := cmd.Run() if err != nil { fmt.Fprintf(os.Stderr,"--E-- system(%v)err(%v)\n",argv,err) fmt.Printf("ERR:%s\n",serr.String()) }else{ fmt.Printf("%s",out.String()) } */ return 0 } func atoi(str string)(ret int){ ret,err := fmt.Sscanf(str,"%d",ret) if err == nil { return ret }else{ // should set errno return 0 } } func getenv(name string)(string){ val,got := os.LookupEnv(name) if got { return val }else{ return "?" } } func strcpy(dst StrBuff, src string){ var i int srcb := []byte(src) for i = 0; i < len(src) && srcb[i] != 0; i++ { dst[i] = srcb[i] } dst[i] = 0 } func xstrcpy(dst StrBuff, src StrBuff){ dst = src } func strcat(dst StrBuff, src StrBuff){ dst = append(dst,src...) } func strdup(str StrBuff)(string){ return string(str[0:strlen(str)]) } func sstrlen(str string)(int){ return len(str) } func strlen(str StrBuff)(int){ var i int for i = 0; i < len(str) && str[i] != 0; i++ { } return i } func sizeof(data StrBuff)(int){ return len(data) } func isatty(fd int)(ret int){ return 1 } func fopen(file string,mode string)(fp*os.File){ if mode == "r" { fp,err := os.Open(file) if( err != nil ){ fmt.Printf("--E-- fopen(%s,%s)=(%v)\n",file,mode,err) return NULL_FP; } return fp; }else{ fp,err := os.OpenFile(file,os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if( err != nil ){ return NULL_FP; } return fp; } } func fclose(fp*os.File){ fp.Close() } func fflush(fp *os.File)(int){ return 0 } func fgetc(fp*os.File)(int){ var buf [1]byte _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } func sfgets(str*string, size int, fp*os.File)(int){ buf := make(StrBuff,size) var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fgets(buf StrBuff, size int, fp*os.File)(int){ var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fputc(ch int , fp*os.File)(int){ var buf [1]byte buf[0] = byte(ch) fp.Write(buf[0:1]) return 0 } func fputs(buf StrBuff, fp*os.File)(int){ fp.Write(buf) return 0 } func xfputss(str string, fp*os.File)(int){ return fputs([]byte(str),fp) } func sscanf(str StrBuff,fmts string, params ...interface{})(int){ fmt.Sscanf(string(str[0:strlen(str)]),fmts,params...) return 0 } func fprintf(fp*os.File,fmts string, params ...interface{})(int){ fmt.Fprintf(fp,fmts,params...) return 0 } // Command Line IME //----------------------------------------------------------------------- MyIME var MyIMEVER = "MyIME/0.0.2"; type RomKana struct { dic string // dictionaly ID pat string // input pattern out string // output pattern hit int64 // count of hit and used } var dicents = 0 var romkana [1024]RomKana var Romkan []RomKana func isinDic(str string)(int){ for i,v := range Romkan { if v.pat == str { return i } } return -1 } const ( DIC_COM_LOAD = "im" DIC_COM_DUMP = "s" DIC_COM_LIST = "ls" DIC_COM_ENA = "en" DIC_COM_DIS = "di" ) func helpDic(argv []string){ out := stderr cmd := "" if 0 < len(argv) { cmd = argv[0] } fprintf(out,"--- %v Usage\n",cmd) fprintf(out,"... Commands\n") fprintf(out,"... %v %-3v [dicName] [dicURL ] -- Import dictionary\n",cmd,DIC_COM_LOAD) fprintf(out,"... %v %-3v [pattern] -- Search in dictionary\n",cmd,DIC_COM_DUMP) fprintf(out,"... %v %-3v [dicName] -- List dictionaries\n",cmd,DIC_COM_LIST) fprintf(out,"... %v %-3v [dicName] -- Disable dictionaries\n",cmd,DIC_COM_DIS) fprintf(out,"... %v %-3v [dicName] -- Enable dictionaries\n",cmd,DIC_COM_ENA) fprintf(out,"... Keys ... %v\n","ESC can be used for '\\'") fprintf(out,"... \\c -- Reverse the case of the last character\n",) fprintf(out,"... \\i -- Replace input with translated text\n",) fprintf(out,"... \\j -- On/Off translation mode\n",) fprintf(out,"... \\l -- Force Lower Case\n",) fprintf(out,"... \\u -- Force Upper Case (software CapsLock)\n",) fprintf(out,"... \\v -- Show translation actions\n",) fprintf(out,"... \\x -- Replace the last input character with it Hexa-Decimal\n",) } func xDic(argv[]string){ if len(argv) <= 1 { helpDic(argv) return } argv = argv[1:] var debug = false var info = false var silent = false var dump = false var builtin = false cmd := argv[0] argv = argv[1:] opt := "" arg := "" if 0 < len(argv) { arg1 := argv[0] if arg1[0] == '-' { switch arg1 { default: fmt.Printf("--Ed-- Unknown option(%v)\n",arg1) return case "-b": builtin = true case "-d": debug = true case "-s": silent = true case "-v": info = true } opt = arg1 argv = argv[1:] } } dicName := "" dicURL := "" if 0 < len(argv) { arg = argv[0] dicName = arg argv = argv[1:] } if 0 < len(argv) { dicURL = argv[0] argv = argv[1:] } if false { fprintf(stderr,"--Dd-- com(%v) opt(%v) arg(%v)\n",cmd,opt,arg) } if cmd == DIC_COM_LOAD { //dicType := "" dicBody := "" if !builtin && dicName != "" && dicURL == "" { f,err := os.Open(dicName) if err == nil { dicURL = dicName }else{ f,err = os.Open(dicName+".html") if err == nil { dicURL = dicName+".html" }else{ f,err = os.Open("gshdic-"+dicName+".html") if err == nil { dicURL = "gshdic-"+dicName+".html" } } } if err == nil { var buf = make([]byte,128*1024) count,err := f.Read(buf) f.Close() if info { fprintf(stderr,"--Id-- ReadDic(%v,%v)\n",count,err) } dicBody = string(buf[0:count]) } } if dicBody == "" { switch arg { default: dicName = "WorldDic" dicURL = WorldDic if info { fprintf(stderr,"--Id-- default dictionary \"%v\"\n", dicName); } case "wnn": dicName = "WnnDic" dicURL = WnnDic case "sumomo": dicName = "SumomoDic" dicURL = SumomoDic case "sijimi": dicName = "SijimiDic" dicURL = SijimiDic case "jkl": dicName = "JKLJaDic" dicURL = JA_JKLDic } if debug { fprintf(stderr,"--Id-- %v URL=%v\n\n",dicName,dicURL); } dicv := strings.Split(dicURL,",") if debug { fprintf(stderr,"--Id-- %v encoded data...\n",dicName) fprintf(stderr,"Type: %v\n",dicv[0]) fprintf(stderr,"Body: %v\n",dicv[1]) fprintf(stderr,"\n") } body,_ := base64.StdEncoding.DecodeString(dicv[1]) dicBody = string(body) } if info { fmt.Printf("--Id-- %v %v\n",dicName,dicURL) fmt.Printf("%s\n",dicBody) } if debug { fprintf(stderr,"--Id-- dicName %v text...\n",dicName) fprintf(stderr,"%v\n",string(dicBody)) } entv := strings.Split(dicBody,"\n"); if info { fprintf(stderr,"--Id-- %v scan...\n",dicName); } var added int = 0 var dup int = 0 for i,v := range entv { var pat string var out string fmt.Sscanf(v,"%s %s",&pat,&out) if len(pat) <= 0 { }else{ if 0 <= isinDic(pat) { dup += 1 continue } romkana[dicents] = RomKana{dicName,pat,out,0} dicents += 1 added += 1 Romkan = append(Romkan,RomKana{dicName,pat,out,0}) if debug { fmt.Printf("[%3v]:[%2v]%-8v [%2v]%v\n", i,len(pat),pat,len(out),out) } } } if !silent { url := dicURL if strBegins(url,"data:") { url = "builtin" } fprintf(stderr,"--Id-- %v scan... %v added, %v dup. / %v total (%v)\n", dicName,added,dup,len(Romkan),url); } // should sort by pattern length for conclete match, for performance if debug { arg = "" // search pattern dump = true } } if cmd == DIC_COM_DUMP || dump { fprintf(stderr,"--Id-- %v dump... %v entries:\n",dicName,len(Romkan)); var match = 0 for i := 0; i < len(Romkan); i++ { dic := Romkan[i].dic pat := Romkan[i].pat out := Romkan[i].out if arg == "" || 0 <= strings.Index(pat,arg)||0 <= strings.Index(out,arg) { fmt.Printf("\\\\%v\t%v [%2v]%-8v [%2v]%v\n", i,dic,len(pat),pat,len(out),out) match += 1 } } fprintf(stderr,"--Id-- %v matched %v / %v entries:\n",arg,match,len(Romkan)); } } func loadDefaultDic(dic int){ if( 0 < len(Romkan) ){ return } //fprintf(stderr,"\r\n") xDic([]string{"dic",DIC_COM_LOAD}); var info = false if info { fprintf(stderr,"--Id-- Conguraturations!! WorldDic is now activated.\r\n") fprintf(stderr,"--Id-- enter \"dic\" command for help.\r\n") } } func readDic()(int){ /* var rk *os.File; var dic = "MyIME-dic.txt"; //rk = fopen("romkana.txt","r"); //rk = fopen("JK-JA-morse-dic.txt","r"); rk = fopen(dic,"r"); if( rk == NULL_FP ){ if( true ){ fprintf(stderr,"--%s-- Could not load %s\n",MyIMEVER,dic); } return -1; } if( true ){ var di int; var line = make(StrBuff,1024); var pat string var out string for di = 0; di < 1024; di++ { if( fgets(line,sizeof(line),rk) == NULLSP ){ break; } fmt.Sscanf(string(line[0:strlen(line)]),"%s %s",&pat,&out); //sscanf(line,"%s %[^\r\n]",&pat,&out); romkana[di].pat = pat; romkana[di].out = out; //fprintf(stderr,"--Dd- %-10s %s\n",pat,out) } dicents += di if( false ){ fprintf(stderr,"--%s-- loaded romkana.txt [%d]\n",MyIMEVER,di); for di = 0; di < dicents; di++ { fprintf(stderr, "%s %s\n",romkana[di].pat,romkana[di].out); } } } fclose(rk); //romkana[dicents].pat = "//ddump" //romkana[dicents].pat = "//ddump" // dump the dic. and clean the command input */ return 0; } func matchlen(stri string, pati string)(int){ if strBegins(stri,pati) { return len(pati) }else{ return 0 } } func convs(src string)(string){ var si int; var sx = len(src); var di int; var mi int; var dstb []byte for si = 0; si < sx; { // search max. match from the position if strBegins(src[si:],"%x/") { // %x/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 //fmt.Sscanf(src[si+3:si+3+ix],"%d",&iv) fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%x",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%d/") { // %d/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%d",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%t") { now := time.Now() if true { date := now.Format(time.Stamp) dstb = append(dstb,[]byte(date)...) si = si+3 } continue } var maxlen int = 0; var len int; mi = -1; for di = 0; di < dicents; di++ { len = matchlen(src[si:],romkana[di].pat); if( maxlen < len ){ maxlen = len; mi = di; } } if( 0 < maxlen ){ out := romkana[mi].out; dstb = append(dstb,[]byte(out)...); si += maxlen; }else{ dstb = append(dstb,src[si]) si += 1; } } return string(dstb) } func trans(src string)(int){ dst := convs(src); xfputss(dst,stderr); return 0; } //------------------------------------------------------------- LINEEDIT // "?" at the top of the line means searching history // should be compatilbe with Telnet const ( EV_MODE = 255 EV_IDLE = 254 EV_TIMEOUT = 253 GO_UP = 252 // k GO_DOWN = 251 // j GO_RIGHT = 250 // l GO_LEFT = 249 // h DEL_RIGHT = 248 // x GO_TOPL = 'A'-0x40 // 0 GO_ENDL = 'E'-0x40 // $ GO_TOPW = 239 // b GO_ENDW = 238 // e GO_NEXTW = 237 // w GO_FORWCH = 229 // f GO_PAIRCH = 228 // % GO_DEL = 219 // d HI_SRCH_FW = 209 // / HI_SRCH_BK = 208 // ? HI_SRCH_RFW = 207 // n HI_SRCH_RBK = 206 // N ) // should return number of octets ready to be read immediately //fprintf(stderr,"\n--Select(%v %v)\n",err,r.Bits[0]) var EventRecvFd = -1 // file descriptor var EventSendFd = -1 const EventFdOffset = 1000000 const NormalFdOffset = 100 func putEvent(event int, evarg int){ if true { if EventRecvFd < 0 { var pv = []int{-1,-1} mysyscall.Pipe(pv) EventRecvFd = pv[0] EventSendFd = pv[1] //fmt.Printf("--De-- EventPipe created[%v,%v]\n",EventRecvFd,EventSendFd) } }else{ if EventRecvFd < 0 { // the document differs from this spec // https://golang.org/src/syscall/syscall_unix.go?s=8096:8158#L340 sv,err := mysyscall.Socketpair(syscall.AF_UNIX,syscall.SOCK_STREAM,0) EventRecvFd = sv[0] EventSendFd = sv[1] if err != nil { fmt.Printf("--De-- EventSock created[%v,%v](%v)\n", EventRecvFd,EventSendFd,err) } } } var buf = []byte{ byte(event)} n,err := mysyscall.Write(EventSendFd,buf) if err != nil { fmt.Printf("--De-- putEvent[%v](%3v)(%v %v)\n",EventSendFd,event,n,err) } } func ungets(str string){ for _,ch := range str { putEvent(int(ch),0) } } func (gsh*GshContext)xReplay(argv[]string){ hix := 0 tempo := 1.0 xtempo := 1.0 repeat := 1 for _,a := range argv { // tempo if strBegins(a,"x") { fmt.Sscanf(a[1:],"%f",&xtempo) tempo = 1 / xtempo //fprintf(stderr,"--Dr-- tempo=[%v]%v\n",a[2:],tempo); }else if strBegins(a,"r") { // repeat fmt.Sscanf(a[1:],"%v",&repeat) }else if strBegins(a,"!") { fmt.Sscanf(a[1:],"%d",&hix) }else{ fmt.Sscanf(a,"%d",&hix) } } if hix == 0 || len(argv) <= 1 { hix = len(gsh.CommandHistory)-1 } fmt.Printf("--Ir-- Replay(!%v x%v r%v)\n",hix,xtempo,repeat) //dumpEvents(hix) //gsh.xScanReplay(hix,false,repeat,tempo,argv) go gsh.xScanReplay(hix,true,repeat,tempo,argv) } // syscall.Select // 2020-0827 GShell-0.2.3 /* func FpollIn1(fp *os.File,usec int)(uintptr){ nfd := 1 rdv := syscall.FdSet {} fd1 := fp.Fd() bank1 := fd1/32 mask1 := int32(1 << fd1) rdv.Bits[bank1] = mask1 fd2 := -1 bank2 := -1 var mask2 int32 = 0 if 0 <= EventRecvFd { fd2 = EventRecvFd nfd = fd2 + 1 bank2 = fd2/32 mask2 = int32(1 << fd2) rdv.Bits[bank2] |= mask2 //fmt.Printf("--De-- EventPoll mask added [%d][%v][%v]\n",fd2,bank2,mask2) } tout := syscall.NsecToTimeval(int64(usec*1000)) //n,err := syscall.Select(nfd,&rdv,nil,nil,&tout) // spec. mismatch err := syscall.Select(nfd,&rdv,nil,nil,&tout) if err != nil { //fmt.Printf("--De-- select() err(%v)\n",err) } if err == nil { if 0 <= fd2 && (rdv.Bits[bank2] & mask2) != 0 { if false { fmt.Printf("--De-- got Event\n") } return uintptr(EventFdOffset + fd2) }else if (rdv.Bits[bank1] & mask1) != 0 { return uintptr(NormalFdOffset + fd1) }else{ return 1 } }else{ return 0 } } */ func fgetcTimeout1(fp *os.File,usec int)(int){ READ1: //readyFd := FpollIn1(fp,usec) readyFd := CFpollIn1(fp,usec) if readyFd < 100 { return EV_TIMEOUT } var buf [1]byte if EventFdOffset <= readyFd { fd := int(readyFd-EventFdOffset) _,err := mysyscall.Read(fd,buf[0:1]) if( err != nil ){ return EOF; }else{ if buf[0] == EV_MODE { recvEvent(fd) goto READ1 } return int(buf[0]) } } _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } func visibleChar(ch int)(string){ switch { case '!' <= ch && ch <= '~': return string(ch) } switch ch { case ' ': return "\\s" case '\n': return "\\n" case '\r': return "\\r" case '\t': return "\\t" } switch ch { case 0x00: return "NUL" case 0x07: return "BEL" case 0x08: return "BS" case 0x0E: return "SO" case 0x0F: return "SI" case 0x1B: return "ESC" case 0x7F: return "DEL" } switch ch { case EV_IDLE: return fmt.Sprintf("IDLE") case EV_MODE: return fmt.Sprintf("MODE") } return fmt.Sprintf("%X",ch) } func recvEvent(fd int){ var buf = make([]byte,1) _,_ = mysyscall.Read(fd,buf[0:1]) if( buf[0] != 0 ){ romkanmode = true }else{ romkanmode = false } } func (gsh*GshContext)xScanReplay(hix int,replay bool,repeat int,tempo float64,argv[]string){ var Start time.Time var events = []Event{} for _,e := range Events { if hix == 0 || e.CmdIndex == hix { events = append(events,e) } } elen := len(events) if 0 < elen { if events[elen-1].event == EV_IDLE { events = events[0:elen-1] } } for r := 0; r < repeat; r++ { for i,e := range events { nano := e.when.Nanosecond() micro := nano / 1000 if Start.Second() == 0 { Start = time.Now() } diff := time.Now().Sub(Start) if replay { if e.event != EV_IDLE { putEvent(e.event,0) if e.event == EV_MODE { // event with arg putEvent(int(e.evarg),0) } } }else{ fmt.Printf("%7.3fms #%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n", float64(diff)/1000000.0, i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event), float64(e.evarg)/1000000.0) } if e.event == EV_IDLE { d := time.Duration(float64(time.Duration(e.evarg)) * tempo) //nsleep(time.Duration(e.evarg)) nsleep(d) } } } } func dumpEvents(arg[]string){ hix := 0 if 1 < len(arg) { fmt.Sscanf(arg[1],"%d",&hix) } for i,e := range Events { nano := e.when.Nanosecond() micro := nano / 1000 //if e.event != EV_TIMEOUT { if hix == 0 || e.CmdIndex == hix { fmt.Printf("#%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n",i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event),float64(e.evarg)/1000000.0) } //} } } func fgetcTimeout(fp *os.File,usec int)(int){ ch := fgetcTimeout1(fp,usec) if ch != EV_TIMEOUT { now := time.Now() if 0 < len(Events) { last := Events[len(Events)-1] dura := int64(now.Sub(last.when)) Events = append(Events,Event{last.when,EV_IDLE,dura,last.CmdIndex}) } Events = append(Events,Event{time.Now(),ch,0,CmdIndex}) } return ch } var AtConsoleLineTop = true var TtyMaxCol = 72 // to be obtained by ioctl? var EscTimeout = (100*1000) var ( MODE_VicMode bool // vi compatible command mode MODE_ShowMode bool romkanmode bool // shown translation mode, the mode to be retained MODE_Recursive bool // recursive translation MODE_CapsLock bool // software CapsLock MODE_LowerLock bool // force lower-case character lock MODE_ViInsert int // visible insert mode, should be like "I" icon in X Window MODE_ViTrace bool // output newline before translation ) type IInput struct { lno int lastlno int pch []int // input queue prompt string line string right string inJmode bool pinJmode bool waitingMeta string // waiting meta character LastCmd string } func (iin*IInput)Getc(timeoutUs int)(int){ ch1 := EOF ch2 := EOF ch3 := EOF if( 0 < len(iin.pch) ){ // deQ ch1 = iin.pch[0] iin.pch = iin.pch[1:] }else{ ch1 = fgetcTimeout(stdin,timeoutUs); } if( ch1 == 033 ){ /// escape sequence ch2 = fgetcTimeout(stdin,EscTimeout); if( ch2 == EV_TIMEOUT ){ }else{ ch3 = fgetcTimeout(stdin,EscTimeout); if( ch3 == EV_TIMEOUT ){ iin.pch = append(iin.pch,ch2) // enQ }else{ switch( ch2 ){ default: iin.pch = append(iin.pch,ch2) // enQ iin.pch = append(iin.pch,ch3) // enQ case '[': switch( ch3 ){ case 'A': ch1 = GO_UP; // ^ case 'B': ch1 = GO_DOWN; // v case 'C': ch1 = GO_RIGHT; // > case 'D': ch1 = GO_LEFT; // < case '3': ch4 := fgetcTimeout(stdin,EscTimeout); if( ch4 == '~' ){ //fprintf(stderr,"x[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); ch1 = DEL_RIGHT } } case '\\': //ch4 := fgetcTimeout(stdin,EscTimeout); //fprintf(stderr,"y[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); switch( ch3 ){ case '~': ch1 = DEL_RIGHT } } } } } return ch1 } func (inn*IInput)clearline(){ var i int fprintf(stderr,"\r"); // should be ANSI ESC sequence for i = 0; i < TtyMaxCol; i++ { // to the max. position in this input action fputc(' ',os.Stderr); } fprintf(stderr,"\r"); } func (iin*IInput)Redraw(){ redraw(iin,iin.lno,iin.line,iin.right) } func redraw(iin *IInput,lno int,line string,right string){ inMeta := false showMode := "" showMeta := "" // visible Meta mode on the cursor position showLino := fmt.Sprintf("!%d! ",lno) InsertMark := "" // in visible insert mode if MODE_VicMode { }else if 0 < len(iin.right) { InsertMark = " " } if( 0 < len(iin.waitingMeta) ){ inMeta = true if iin.waitingMeta[0] != 033 { showMeta = iin.waitingMeta } } if( romkanmode ){ //romkanmark = " *"; }else{ //romkanmark = ""; } if MODE_ShowMode { romkan := "--" inmeta := "-" inveri := "" if MODE_CapsLock { inmeta = "A" } if MODE_LowerLock { inmeta = "a" } if MODE_ViTrace { inveri = "v" } if MODE_VicMode { inveri = ":" } if romkanmode { romkan = "\343\201\202" if MODE_CapsLock { inmeta = "R" }else{ inmeta = "r" } } if inMeta { inmeta = "\\" } showMode = "["+romkan+inmeta+inveri+"]"; } Pre := "\r" + showMode + showLino Output := "" Left := "" Right := "" if romkanmode { Left = convs(line) Right = InsertMark+convs(right) }else{ Left = line Right = InsertMark+right } Output = Pre+Left if MODE_ViTrace { Output += iin.LastCmd } Output += showMeta+Right for len(Output) < TtyMaxCol { // to the max. position that may be dirty Output += " " // should be ANSI ESC sequence // not necessary just after newline } Output += Pre+Left+showMeta // to set the cursor to the current input position fprintf(stderr,"%s",Output) if MODE_ViTrace { if 0 < len(iin.LastCmd) { iin.LastCmd = "" fprintf(stderr,"\r\n") } } AtConsoleLineTop = false } // utf8 func delHeadChar(str string)(rline string,head string){ _,clen := utf8.DecodeRune([]byte(str)) head = string(str[0:clen]) return str[clen:],head } func delTailChar(str string)(rline string, last string){ var i = 0 var clen = 0 for { _,siz := utf8.DecodeRune([]byte(str)[i:]) if siz <= 0 { break } clen = siz i += siz } last = str[len(str)-clen:] return str[0:len(str)-clen],last } // 3> for output and history // 4> for keylog? // Command Line Editor func xgetline(lno int, prevline string, gsh*GshContext)(string){ var iin IInput iin.lastlno = lno iin.lno = lno CmdIndex = len(gsh.CommandHistory) if( isatty(0) == 0 ){ if( sfgets(&iin.line,LINESIZE,stdin) == NULL ){ iin.line = "exit\n"; }else{ } return iin.line } if( true ){ //var pts string; //pts = ptsname(0); //pts = ttyname(0); //fprintf(stderr,"--pts[0] = %s\n",pts?pts:"?"); } if( false ){ fprintf(stderr,"! "); fflush(stderr); sfgets(&iin.line,LINESIZE,stdin); return iin.line } if( OnWindows() ){ }else{ system("/bin/stty -echo -icanon"); } xline := iin.xgetline1(prevline,gsh) if( OnWindows() ){ }else{ system("/bin/stty echo sane"); } return xline } func (iin*IInput)Translate(cmdch int){ romkanmode = !romkanmode; if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); }else if( cmdch == 'J' ){ fprintf(stderr,"J\r\n"); iin.inJmode = true } iin.Redraw(); loadDefaultDic(cmdch); iin.Redraw(); } func (iin*IInput)Replace(cmdch int){ iin.LastCmd = fmt.Sprintf("\\%v",string(cmdch)) iin.Redraw(); loadDefaultDic(cmdch); dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" if( cmdch == 'I' ){ fprintf(stderr,"I\r\n"); iin.inJmode = true } iin.Redraw(); } // aa 12 a1a1 func isAlpha(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } return false } func isAlnum(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } if '0' <= ch && ch <= '9' { return true } return false } // 0.2.8 2020-0901 created // DecodeRuneInString func (iin*IInput)GotoTOPW(){ str := iin.line i := len(str) if i <= 0 { return } //i0 := i i -= 1 lastSize := 0 var lastRune rune var found = -1 for 0 < i { // skip preamble spaces lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if !isAlnum(lastRune) { // character, type, or string to be searched i -= lastSize continue } break } for 0 < i { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { continue } // not the character top if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i -= lastSize } if found < 0 && i == 0 { found = 0 } if 0 <= found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word i += lastSize } iin.right = str[i:] + iin.right if 0 < i { iin.line = str[0:i] }else{ iin.line = "" } } //fmt.Printf("\n(%d,%d,%d)[%s][%s]\n",i0,i,found,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoENDW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var lastW = 0 i := 0 inWord := false lastRune,lastSize = utf8.DecodeRuneInString(str[0:]) if isAlnum(lastRune) { r,z := utf8.DecodeRuneInString(str[lastSize:]) if 0 < z && isAlnum(r) { inWord = true } } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i // the last alnum if in alnum word i += lastSize } if inWord { goto DISP } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if isAlnum(lastRune) { // character, type, or string to be searched break } i += lastSize } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i i += lastSize } DISP: if 0 < lastW { iin.line = iin.line + str[0:lastW] iin.right = str[lastW:] } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoNEXTW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var found = -1 i := 1 for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i += lastSize } if 0 < found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word found += lastSize } iin.line = iin.line + str[0:found] if 0 < found { iin.right = str[found:] }else{ iin.right = "" } } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0902 created func (iin*IInput)GotoPAIRCH(){ str := iin.right if len(str) <= 0 { return } lastRune,lastSize := utf8.DecodeRuneInString(str[0:]) if lastSize <= 0 { return } forw := false back := false pair := "" switch string(lastRune){ case "{": pair = "}"; forw = true case "}": pair = "{"; back = true case "(": pair = ")"; forw = true case ")": pair = "("; back = true case "[": pair = "]"; forw = true case "]": pair = "["; back = true case "<": pair = ">"; forw = true case ">": pair = "<"; back = true case "\"": pair = "\""; // context depednet, can be f" or back-double quote case "'": pair = "'"; // context depednet, can be f' or back-quote // case Japanese Kakkos } if forw { iin.SearchForward(pair) } if back { iin.SearchBackward(pair) } } // 0.2.8 2020-0902 created func (iin*IInput)SearchForward(pat string)(bool){ right := iin.right found := -1 i := 0 if strBegins(right,pat) { _,z := utf8.DecodeRuneInString(right[i:]) if 0 < z { i += z } } for i < len(right) { if strBegins(right[i:],pat) { found = i break } _,z := utf8.DecodeRuneInString(right[i:]) if z <= 0 { break } i += z } if 0 <= found { iin.line = iin.line + right[0:found] iin.right = iin.right[found:] return true }else{ return false } } // 0.2.8 2020-0902 created func (iin*IInput)SearchBackward(pat string)(bool){ line := iin.line found := -1 i := len(line)-1 for i = i; 0 <= i; i-- { _,z := utf8.DecodeRuneInString(line[i:]) if z <= 0 { continue } //fprintf(stderr,"-- %v %v\n",pat,line[i:]) if strBegins(line[i:],pat) { found = i break } } //fprintf(stderr,"--%d\n",found) if 0 <= found { iin.right = line[found:] + iin.right iin.line = line[0:found] return true }else{ return false } } // 0.2.8 2020-0902 created // search from top, end, or current position func (gsh*GshContext)SearchHistory(pat string, forw bool)(bool,string){ if forw { for _,v := range gsh.CommandHistory { if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } }else{ hlen := len(gsh.CommandHistory) for i := hlen-1; 0 < i ; i-- { v := gsh.CommandHistory[i] if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } } //fprintf(stderr,"\n--De-- not-found(%v)\n",pat) return false,"(Not Found in History)" } // 0.2.8 2020-0902 created func (iin*IInput)GotoFORWSTR(pat string,gsh*GshContext){ found := false if 0 < len(iin.right) { found = iin.SearchForward(pat) } if !found { found,line := gsh.SearchHistory(pat,true) if found { iin.line = line iin.right = "" } } } func (iin*IInput)GotoBACKSTR(pat string, gsh*GshContext){ found := false if 0 < len(iin.line) { found = iin.SearchBackward(pat) } if !found { found,line := gsh.SearchHistory(pat,false) if found { iin.line = line iin.right = "" } } } func (iin*IInput)getstring1(prompt string)(string){ // should be editable iin.clearline(); fprintf(stderr,"\r%v",prompt) str := "" for { ch := iin.Getc(10*1000*1000) if ch == '\n' || ch == '\r' { break } sch := string(ch) str += sch fprintf(stderr,"%s",sch) } return str } // search pattern must be an array and selectable with ^N/^P var SearchPat = "" var SearchForw = true func (iin*IInput)xgetline1(prevline string, gsh*GshContext)(string){ var ch int; MODE_ShowMode = false MODE_VicMode = false iin.Redraw(); first := true for cix := 0; ; cix++ { iin.pinJmode = iin.inJmode iin.inJmode = false ch = iin.Getc(1000*1000) if ch != EV_TIMEOUT && first { first = false mode := 0 if romkanmode { mode = 1 } now := time.Now() Events = append(Events,Event{now,EV_MODE,int64(mode),CmdIndex}) } if ch == 033 { MODE_ShowMode = true MODE_VicMode = !MODE_VicMode iin.Redraw(); continue } if MODE_VicMode { switch ch { case '0': ch = GO_TOPL case '$': ch = GO_ENDL case 'b': ch = GO_TOPW case 'e': ch = GO_ENDW case 'w': ch = GO_NEXTW case '%': ch = GO_PAIRCH case 'j': ch = GO_DOWN case 'k': ch = GO_UP case 'h': ch = GO_LEFT case 'l': ch = GO_RIGHT case 'x': ch = DEL_RIGHT case 'a': MODE_VicMode = !MODE_VicMode ch = GO_RIGHT case 'i': MODE_VicMode = !MODE_VicMode iin.Redraw(); continue case '~': right,head := delHeadChar(iin.right) if len([]byte(head)) == 1 { ch = int(head[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.right = string(ch) + right } iin.Redraw(); continue case 'f': // GO_FORWCH iin.Redraw(); ch = iin.Getc(3*1000*1000) if ch == EV_TIMEOUT { iin.Redraw(); continue } SearchPat = string(ch) SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '/': SearchPat = iin.getstring1("/") // should be editable SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '?': SearchPat = iin.getstring1("?") // should be editable SearchForw = false iin.GotoBACKSTR(SearchPat,gsh) iin.Redraw(); continue case 'n': if SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue case 'N': if !SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue } } switch ch { case GO_TOPW: iin.GotoTOPW() iin.Redraw(); continue case GO_ENDW: iin.GotoENDW() iin.Redraw(); continue case GO_NEXTW: // to next space then iin.GotoNEXTW() iin.Redraw(); continue case GO_PAIRCH: iin.GotoPAIRCH() iin.Redraw(); continue } //fprintf(stderr,"A[%02X]\n",ch); if( ch == '\\' || ch == 033 ){ MODE_ShowMode = true metach := ch iin.waitingMeta = string(ch) iin.Redraw(); // set cursor //fprintf(stderr,"???\b\b\b") ch = fgetcTimeout(stdin,2000*1000) // reset cursor iin.waitingMeta = "" cmdch := ch if( ch == EV_TIMEOUT ){ if metach == 033 { continue } ch = metach }else /* if( ch == 'm' || ch == 'M' ){ mch := fgetcTimeout(stdin,1000*1000) if mch == 'r' { romkanmode = true }else{ romkanmode = false } continue }else */ if( ch == 'k' || ch == 'K' ){ MODE_Recursive = !MODE_Recursive iin.Translate(cmdch); continue }else if( ch == 'j' || ch == 'J' ){ iin.Translate(cmdch); continue }else if( ch == 'i' || ch == 'I' ){ iin.Replace(cmdch); continue }else if( ch == 'l' || ch == 'L' ){ MODE_LowerLock = !MODE_LowerLock MODE_CapsLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'u' || ch == 'U' ){ MODE_CapsLock = !MODE_CapsLock MODE_LowerLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'v' || ch == 'V' ){ MODE_ViTrace = !MODE_ViTrace if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'c' || ch == 'C' ){ if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) if len([]byte(tail)) == 1 { ch = int(tail[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.line = xline + string(ch) } } if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else{ iin.pch = append(iin.pch,ch) // push ch = '\\' } } switch( ch ){ case 'P'-0x40: ch = GO_UP case 'N'-0x40: ch = GO_DOWN case 'B'-0x40: ch = GO_LEFT case 'F'-0x40: ch = GO_RIGHT } //fprintf(stderr,"B[%02X]\n",ch); switch( ch ){ case 0: continue; case '\t': iin.Replace('j'); continue case 'X'-0x40: iin.Replace('j'); continue case EV_TIMEOUT: iin.Redraw(); if iin.pinJmode { fprintf(stderr,"\\J\r\n") iin.inJmode = true } continue case GO_UP: if iin.lno == 1 { continue } cmd,ok := gsh.cmdStringInHistory(iin.lno-1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno - 1 } iin.Redraw(); continue case GO_DOWN: cmd,ok := gsh.cmdStringInHistory(iin.lno+1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno + 1 }else{ iin.line = "" iin.right = "" if iin.lno == iin.lastlno-1 { iin.lno = iin.lno + 1 } } iin.Redraw(); continue case GO_LEFT: if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) iin.line = xline iin.right = tail + iin.right } iin.Redraw(); continue; case GO_RIGHT: if( 0 < len(iin.right) && iin.right[0] != 0 ){ xright,head := delHeadChar(iin.right) iin.right = xright iin.line += head } iin.Redraw(); continue; case EOF: goto EXIT; case 'R'-0x40: // replace dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" iin.Redraw(); continue; case 'T'-0x40: // just show the result readDic(); romkanmode = !romkanmode; iin.Redraw(); continue; case 'L'-0x40: iin.Redraw(); continue case 'K'-0x40: iin.right = "" iin.Redraw(); continue case 'E'-0x40: iin.line += iin.right iin.right = "" iin.Redraw(); continue case 'A'-0x40: iin.right = iin.line + iin.right iin.line = "" iin.Redraw(); continue case 'U'-0x40: iin.line = "" iin.right = "" iin.clearline(); iin.Redraw(); continue; case DEL_RIGHT: if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } continue; case 0x7F: // BS? not DEL if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } /* else if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } */ continue; case 'H'-0x40: if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } continue; } if( OnWindows() ){ if( ch == '\n' ){ continue; } } if( ch == '\n' || ch == '\r' ){ iin.line += iin.right; iin.right = "" iin.Redraw(); fputc(ch,stderr); AtConsoleLineTop = true break; } if MODE_CapsLock { if 'a' <= ch && ch <= 'z' { ch = ch+'A'-'a' } } if MODE_LowerLock { if 'A' <= ch && ch <= 'Z' { ch = ch+'a'-'A' } } iin.line += string(ch); iin.Redraw(); } EXIT: return iin.line + iin.right; } func getline_main(){ line := xgetline(0,"",nil) fprintf(stderr,"%s\n",line); /* dp = strpbrk(line,"\r\n"); if( dp != NULL ){ *dp = 0; } if( 0 ){ fprintf(stderr,"\n(%d)\n",int(strlen(line))); } if( lseek(3,0,0) == 0 ){ if( romkanmode ){ var buf [8*1024]byte; convs(line,buff); strcpy(line,buff); } write(3,line,strlen(line)); ftruncate(3,lseek(3,0,SEEK_CUR)); //fprintf(stderr,"outsize=%d\n",(int)lseek(3,0,SEEK_END)); lseek(3,0,SEEK_SET); close(3); }else{ fprintf(stderr,"\r\ngotline: "); trans(line); //printf("%s\n",line); printf("\n"); } */ } //== end ========================================================= getline // // $USERHOME/.gsh/ // gsh-rc.txt, or gsh-configure.txt // gsh-history.txt // gsh-aliases.txt // should be conditional? // func (gshCtx *GshContext)gshSetupHomedir()(bool) { homedir,found := userHomeDir() if !found { fmt.Printf("--E-- You have no UserHomeDir\n") return true } gshhome := homedir + "/" + GSH_HOME _, err2 := os.Stat(gshhome) if err2 != nil { err3 := os.Mkdir(gshhome,0700) if err3 != nil { fmt.Printf("--E-- Could not Create %s (%s)\n", gshhome,err3) return true } fmt.Printf("--I-- Created %s\n",gshhome) } gshCtx.GshHomeDir = gshhome return false } func setupGshContext()(GshContext,bool){ gshPA := Mysyscall_ProcAttr { "", // the staring directory os.Environ(), // environ[] //[]uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, []*os.File{os.Stdin,os.Stdout,os.Stderr}, nil, // OS specific } cwd, _ := os.Getwd() gshCtx := GshContext { cwd, // StartDir "", // GetLine []GChdirHistory { {cwd,time.Now(),0} }, // ChdirHistory gshPA, []GCommandHistory{}, //something for invokation? GCommandHistory{}, // CmdCurrent false, []int{}, Mysyscall_Rusage{}, "", // GshHomeDir Ttyid(), false, false, []PluginInfo{}, []string{}, " ", "v", ValueStack{}, GServer{"",""}, // LastServer "", // RSERV cwd, // RWD CheckSum{}, } err := gshCtx.gshSetupHomedir() return gshCtx, err } func (gsh*GshContext)gshelllh(gline string)(bool){ ghist := gsh.CmdCurrent ghist.WorkDir,_ = os.Getwd() ghist.WorkDirX = len(gsh.ChdirHistory)-1 //fmt.Printf("--D--ChdirHistory(@%d)\n",len(gsh.ChdirHistory)) ghist.StartAt = time.Now() rusagev1 := Getrusagev() gsh.CmdCurrent.FoundFile = []string{} fin := gsh.tgshelll(gline) rusagev2 := Getrusagev() ghist.Rusagev = RusageSubv(rusagev2,rusagev1) ghist.EndAt = time.Now() ghist.CmdLine = gline ghist.FoundFile = gsh.CmdCurrent.FoundFile /* record it but not show in list by default if len(gline) == 0 { continue } if gline == "hi" || gline == "history" { // don't record it continue } */ gsh.CommandHistory = append(gsh.CommandHistory, ghist) return fin } // Main loop func script(gshCtxGiven *GshContext) (_ GshContext) { gshCtxBuf,err0 := setupGshContext() if err0 { return gshCtxBuf; } gshCtx := &gshCtxBuf //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) //resmap() /* if false { gsh_getlinev, with_exgetline := which("PATH",[]string{"which","gsh-getline","-s"}) if with_exgetline { gsh_getlinev[0] = toFullpath(gsh_getlinev[0]) gshCtx.GetLine = toFullpath(gsh_getlinev[0]) }else{ fmt.Printf("--W-- No gsh-getline found. Using internal getline.\n"); } } */ ghist0 := gshCtx.CmdCurrent // something special, or gshrc script, or permanent history gshCtx.CommandHistory = append(gshCtx.CommandHistory,ghist0) prevline := "" skipping := false for hix := len(gshCtx.CommandHistory); ; { gline := gshCtx.getline(hix,skipping,prevline) if skipping { if strings.Index(gline,"fi") == 0 { fmt.Printf("fi\n"); skipping = false; }else{ //fmt.Printf("%s\n",gline); } continue } if strings.Index(gline,"if") == 0 { //fmt.Printf("--D-- if start: %s\n",gline); skipping = true; continue } if false { os.Stdout.Write([]byte("gotline:")) os.Stdout.Write([]byte(gline)) os.Stdout.Write([]byte("\n")) } gline = strsubst(gshCtx,gline,true) if false { fmt.Printf("fmt.Printf %%v - %v\n",gline) fmt.Printf("fmt.Printf %%s - %s\n",gline) fmt.Printf("fmt.Printf %%x - %s\n",gline) fmt.Printf("fmt.Printf %%U - %s\n",gline) fmt.Printf("Stouut.Write -") os.Stdout.Write([]byte(gline)) fmt.Printf("\n") } /* // should be cared in substitution ? if 0 < len(gline) && gline[0] == '!' { xgline, set, err := searchHistory(gshCtx,gline) if err { continue } if set { // set the line in command line editor } gline = xgline } */ fin := gshCtx.gshelllh(gline) if fin { break; } prevline = gline; hix++; } return *gshCtx } func main() { gshCtxBuf := GshContext{} gsh := &gshCtxBuf argv := os.Args if( isin("wss",argv) ){ gj_server(argv[1:]); return; } if( isin("wsc",argv) ){ gj_client(argv[1:]); return; } if 1 < len(argv) { if isin("version",argv){ gsh.showVersion(argv) return } if argv[1] == "gj" { if argv[2] == "listen" { go gj_server(argv[2:]); } if argv[2] == "server" { go gj_server(argv[2:]); } if argv[2] == "serve" { go gj_server(argv[2:]); } if argv[2] == "client" { go gj_client(argv[2:]); } if argv[2] == "join" { go gj_client(argv[2:]); } } comx := isinX("-c",argv) if 0 < comx { gshCtxBuf,err := setupGshContext() gsh := &gshCtxBuf if !err { gsh.gshellv(argv[comx+1:]) } return } } if 1 < len(argv) && isin("-s",argv) { }else{ gsh.showVersion(append(argv,[]string{"-l","-a"}...)) } script(nil) //gshCtx := script(nil) //gshelll(gshCtx,"time") } //
//
Considerations
// - inter gsh communication, possibly running in remote hosts -- to be remote shell // - merged histories of multiple parallel gsh sessions // - alias as a function or macro // - instant alias end environ export to the permanent > ~/.gsh/gsh-alias and gsh-environ // - retrieval PATH of files by its type // - gsh as an IME with completion using history and file names as dictionaies // - gsh a scheduler in precise time of within a millisecond // - all commands have its subucomand after "---" symbol // - filename expansion by "-find" command // - history of ext code and output of each commoand // - "script" output for each command by pty-tee or telnet-tee // - $BUILTIN command in PATH to show the priority // - "?" symbol in the command (not as in arguments) shows help request // - searching command with wild card like: which ssh-* // - longformat prompt after long idle time (should dismiss by BS) // - customizing by building plugin and dynamically linking it // - generating syntactic element like "if" by macro expansion (like CPP) >> alias // - "!" symbol should be used for negation, don't wast it just for job control // - don't put too long output to tty, record it into GSH_HOME/session-id/comand-id.log // - making canonical form of command at the start adding quatation or white spaces // - name(a,b,c) ... use "(" and ")" to show both delimiter and realm // - name? or name! might be useful // - htar format - packing directory contents into a single html file using data scheme // - filepath substitution shold be done by each command, expecially in case of builtins // - @N substition for the history of working directory, and @spec for more generic ones // - @dir prefix to do the command at there, that means like (chdir @dir; command) // - GSH_PATH for plugins // - standard command output: list of data with name, size, resouce usage, modified time // - generic sort key option -nm name, -sz size, -ru rusage, -ts start-time, -tm mod-time // -wc word-count, grep match line count, ... // - standard command execution result: a list of string, -tm, -ts, -ru, -sz, ... // - -tailf-filename like tail -f filename, repeat close and open before read // - max. size and max. duration and timeout of (generated) data transfer // - auto. numbering, aliasing, IME completion of file name (especially rm of quieer name) // - IME "?" at the top of the command line means searching history // - IME %d/0x10000/ %x/ffff/ // - IME ESC to go the edit mode like in vi, and use :command as :s/x/y/g to edit history // - gsh in WebAssembly // - gsh as a HTTP server of online-manual //---END--- (^-^)//ITS more
// var WorldDic = // "data:text/dic;base64,"+ "Ly8gTXlJTUUvMC4wLjEg6L6e5pu4ICgyMDIwLTA4MTlhKQpzZWthaSDkuJbnlYwKa28g44GT"+ "Cm5uIOOCkwpuaSDjgasKY2hpIOOBoQp0aSDjgaEKaGEg44GvCnNlIOOBmwprYSDjgYsKaSDj"+ "gYQK"; // var WnnDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL2Rp"+ "Y3ZlcglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNXbm5ccy8vXHMyMDIwLTA4MzAK"+ "R1NoZWxsCUdTaGVsbArjgo/jgZ/jgZcJ56eBCndhdGFzaGkJ56eBCndhdGFzaQnnp4EK44Gq"+ "44G+44GICeWQjeWJjQpuYW1hZQnlkI3liY0K44Gq44GL44GuCeS4remHjgpuYWthbm8J5Lit"+ "6YeOCndhCeOCjwp0YQnjgZ8Kc2kJ44GXCnNoaQnjgZcKbm8J44GuCm5hCeOBqgptYQnjgb4K"+ "ZQnjgYgKaGEJ44GvCm5hCeOBqgprYQnjgYsKbm8J44GuCmRlCeOBpwpzdQnjgZkKZVxzCWVj"+ "aG8KZGljCWRpYwplY2hvCWVjaG8KcmVwbGF5CXJlcGxheQpyZXBlYXQJcmVwZWF0CmR0CWRh"+ "dGVccysnJVklbSVkLSVIOiVNOiVTJwp0aW9uCXRpb24KJXQJJXQJLy8gdG8gYmUgYW4gYWN0"+ "aW9uCjwvdGV4dGFyZWE+Cg==" // var SumomoDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTdW1vbW9ccy8vXHMyMDIwLTA4MzAK"+ "c3UJ44GZCm1vCeOCggpubwnjga4KdQnjgYYKY2hpCeOBoQp0aQnjgaEKdWNoaQnlhoUKdXRp"+ "CeWGhQpzdW1vbW8J44GZ44KC44KCCnN1bW9tb21vCeOBmeOCguOCguOCggptb21vCeahgwpt"+ "b21vbW8J5qGD44KCCiwsCeOAgQouLgnjgIIKPC90ZXh0YXJlYT4K" // var SijimiDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTaGlqaW1pXHMvL1xzMjAyMC0wODMw"+ "CnNpCeOBlwpzaGkJ44GXCmppCeOBmAptaQnjgb8KbmEJ44GqCmp1CeOBmOOChQp4eXUJ44KF"+ "CnUJ44GGCm5pCeOBqwprbwnjgZMKYnUJ44G2Cm5uCeOCkwpubwnjga4KY2hpCeOBoQp0aQnj"+ "gaEKa2EJ44GLCnJhCeOCiQosLAnjgIEKLi4J44CCCnhuYW5hCeS4gwp4anV1CeWNgQp4bmkJ"+ "5LqMCmtveAnlgIsKa29xCeWAiwprb3gJ5YCLCm5hbmFqdXVuaXgJNzIKbmFuYWp1dW5peHgJ"+ "77yX77ySCm5hbmFqdXVuaVgJ77yX77ySCuS4g+WNgeS6jHgJNzIKa29idW5uCeWAi+WIhgp0"+ "aWthcmFxCeOBoeOBi+OCiQp0aWthcmEJ5YqbCmNoaWthcmEJ5YqbCjwvdGV4dGFyZWE+Cg=" // var JA_JKLDic = // "data:text/dic;base64,"+ "Ly92ZXJsCU15SU1FamRpY2ptb3JzZWpKQWpKS0woMjAyMGowODE5KSheLV4pL1NhdG94SVRT"+ "CmtqamprbGtqa2tsa2psIOS4lueVjApqamtqamwJ44GCCmtqbAnjgYQKa2tqbAnjgYYKamtq"+ "amwJ44GICmtqa2trbAnjgYoKa2pra2wJ44GLCmpramtrbAnjgY0Ka2tramwJ44GPCmpramps"+ "CeOBkQpqampqbAnjgZMKamtqa2psCeOBlQpqamtqa2wJ44GXCmpqamtqbAnjgZkKa2pqamts"+ "CeOBmwpqamprbAnjgZ0KamtsCeOBnwpra2prbAnjgaEKa2pqa2wJ44GkCmtqa2pqbAnjgaYK"+ "a2tqa2tsCeOBqApramtsCeOBqgpqa2prbAnjgasKa2tra2wJ44GsCmpqa2psCeOBrQpra2pq"+ "bAnjga4Kamtra2wJ44GvCmpqa2tqbAnjgbIKampra2wJ44G1CmtsCeOBuApqa2tsCeOBuwpq"+ "a2tqbAnjgb4Ka2tqa2psCeOBvwpqbAnjgoAKamtra2psCeOCgQpqa2tqa2wJ44KCCmtqamwJ"+ "44KECmpra2pqbAnjgoYKampsCeOCiApra2tsCeOCiQpqamtsCeOCigpqa2pqa2wJ44KLCmpq"+ "amwJ44KMCmtqa2psCeOCjQpqa2psCeOCjwpramtramwJ44KQCmtqamtrbAnjgpEKa2pqamwJ"+ "44KSCmtqa2prbAnjgpMKa2pqa2psCeODvApra2wJ44KbCmtramprbAnjgpwKa2pramtqbAnj"+ "gIEK"; // // /*
References
*/ /*
Raw Source
Whole file
CSS part
JavaScript part
Builtin data part
*/ /*
(^_^)//{Hit j k l h}
CLOSE
*/ /*
GJ Console

*/ /*
Form Auto. Filling
Location: Username: Password: SessionId:
*/ /*
BlinderText // https://w3c.github.io/uievents/#event-type-keydown // // 2020-09-21 class BlinderText - textarea element not to be readable // // BlinderText attributes // bl_plainText - null // bl_hideChecksum - [false] // bl_showLength - [false] // bl_visible - [false] // data-bl_config - [] // - min. length // - max. length // - acceptable charset in generete text // function BlinderChecksum(text){ plain = text.bl_plainText; return strCRC32(plain,plain.length).toFixed(0); } function BlinderKeydown(ev){ pass = ev.target if( ev.code == 'Enter' ){ ev.preventDefault(); } ev.stopPropagation() } function BlinderKeyup1(ev){ blind = ev.target if( ev.code == 'Backspace'){ blind.bl_plainText = blind.bl_plainText.slice(0,blind.bl_plainText.length-1) }else if( and(ev.code == 'KeyV', ev.ctrlKey) ){ blind.bl_visible = !blind.bl_visible; }else if( and(ev.code == 'KeyL', ev.ctrlKey) ){ blind.bl_showLength = !blind.bl_showLength; }else if( and(ev.code == 'KeyU', ev.ctrlKey) ){ blind.bl_plainText = ""; }else if( and(ev.code == 'KeyR', ev.ctrlKey) ){ checksum = BlinderChecksum(blind); blind.bl_plainText = checksum; //.toString(32); }else if( ev.code == 'Enter' ){ ev.stopPropagation(); ev.preventDefault(); return; }else if( ev.key.length != 1 ){ console.log('KeyUp: '+ev.code+'/'+ev.key); return; }else{ blind.bl_plainText += ev.key; } leng = blind.bl_plainText.length; //console.log('KeyUp: '+ev.code+'/'+blind.bl_plainText); checksum = BlinderChecksum(blind) % 10; // show last one digit only visual = ''; if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '['; } if( !blind.bl_hideCheckSum ){ visual += '#'+checksum.toString(10); } if( blind.bl_showLength ){ visual += '/' + leng; } if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '] '; } if( blind.bl_visible ){ visual += blind.bl_plainText; }else{ visual += '*'.repeat(leng); } blind.value = visual; } function BlinderKeyup(ev){ BlinderKeyup1(ev); ev.stopPropagation(); } // https://w3c.github.io/uievents/#keyboardevent // https://w3c.github.io/uievents/#uievent // https://dom.spec.whatwg.org/#event function BlinderTextEvent(){ ev = event; blind = ev.target; console.log('Event '+ev.type+'@'+blind.nodeName+'#'+blind.id) if( ev.type == 'keyup' ){ BlinderKeyup(ev); }else if( ev.type == 'keydown' ){ BlinderKeydown(ev); }else{ console.log('thru-event '+ev.type+'@'+blind.nodeName+'#'+blind.id) } } //< textarea hidden id="BlinderTextClassDef" class="textField"" // onkeydown="BlinderTextEvent()" onkeyup="BlinderTextEvent()" // spellcheck="false">< /textarea> //< textarea hidden id="gj_pass1" // class="textField BlinderText" // placeholder="PassWord1" // onkeydown="BlinderTextEvent()" // onkeyup="BlinderTextEvent()" // spellcheck="false"< /textarea> function SetupBlinderText(parent,txa,phold){ if( txa == null ){ txa = document.createElement('textarea'); //txa.id = id; } txa.setAttribute('class','textField BlinderText'); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','BlinderTextEvent()'); txa.setAttribute('onkeyup','BlinderTextEvent()'); txa.setAttribute('spellcheck','false'); //txa.setAttribute('bl_plainText','false'); txa.bl_plainText = ''; //parent.appendChild(txa); } function DestroyBlinderText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); txa.bl_plainText = ''; } // // visible textarea like Username // function VisibleTextEvent(){ if( event.code == 'Enter' ){ if( event.target.NoEnter ){ event.preventDefault(); } } event.stopPropagation(); } function SetupVisibleText(parent,txa,phold){ if( false ){ txa.setAttribute('class','textField VisibleText'); }else{ newclass = txa.getAttribute('class'); if( and(newclass != null, newclass != '') ){ newclass += ' '; } newclass += 'VisibleText'; txa.setAttribute('class',newclass); } //console.log('SetupVisibleText class='+txa.class); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','VisibleTextEvent()'); txa.setAttribute('onkeyup', 'VisibleTextEvent()'); txa.setAttribute('spellcheck','false'); cols = txa.getAttribute('cols'); if( cols != null ){ txa.style.width = '580px'; //console.log('VisualText#'+txa.id+' cols='+cols) }else{ //console.log('VisualText#'+txa.id+' NO cols') } rows = txa.getAttribute('rows'); if( rows != null ){ txa.style.height = '30px'; txa.style.resize = 'both'; txa.NoEnter = false; }else{ txa.NoEnter = true; } } function DestroyVisibleText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); cols = txa.removeAttribute('cols'); }
*/ /* */ // //
Golang / JavaScript Link // // 2020-0920 created // WS // WS // INSTALL: go get golang.org/x/net/websocket // INSTALL: sudo {apt,yum} install git (if git is not instlled yet) // import "golang.org/x/net/websocket" const gshws_origin = "http://locahost:9999" const gshws_server = "localhost:9999" const gshws_port = 9999 const gshws_path = "gjlink1" const gshws_url = "ws://"+gshws_server+"/"+gshws_path const GSHWS_MSGSIZE = (8*1024) func fmtstring(fmts string, params ...interface{})(string){ return fmt.Sprintf(fmts,params...) } func GSHWS_MARK(what string)(string){ now := time.Now() us := fmtstring("%06d",now.Nanosecond() / 1000) mark := "" if( !AtConsoleLineTop ){ mark += "\n" AtConsoleLineTop = true } mark += "["+now.Format(time.Stamp)+"."+us+"] -GJ-" + what + ": " return mark } func gchk(what string,err error){ if( err != nil ){ panic(GSHWS_MARK(what)+err.Error()) } } func glog(what string, fmts string, params ...interface{}){ fmt.Print(GSHWS_MARK(what)) fmt.Printf(fmts+"\n",params...) } var WSV = []*websocket.Conn{} func jsend(argv []string){ if len(argv) <= 1 { fmt.Printf("--Ij %v [-m] command arguments\n",argv[0]) return } argv = argv[1:] if( len(WSV) == 0 ){ fmt.Printf("--Ej-- No link now\n") return } if( 1 < len(WSV) ){ fmt.Printf("--Ij-- multiple links (%v)\n",len(WSV)) } multicast := false // should be filtered with regexp if( 0 < len(argv) && argv[0] == "-m" ){ multicast = true argv = argv[1:] } args := strings.Join(argv," ") now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) msg := fmtstring("%v SEND gshell|* %v",tstamp,args) if( multicast ){ for i,ws := range WSV { wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } }else{ i := 0 ws := WSV[i] wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } } func ws_broadcast(msg string)(wn int,werr error){ for i,ws := range WSV { wn,werr = ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } return wn,werr; } func serv1(ws *websocket.Conn) { WSV = append(WSV,ws) //fmt.Print("\n") glog("CO","accepted connections[%v]",len(WSV)) //remoteAddr := ws.RemoteAddr //fmt.Printf("-- accepted %v\n",remoteAddr) //fmt.Printf("-- accepted %v\n",ws.Config()) //fmt.Printf("-- accepted %v\n",ws.Config().Header) //fmt.Printf("-- accepted %v // %v\n",ws,serv1) var reqb = make([]byte,GSHWS_MSGSIZE) for { rn, rerr := ws.Read(reqb) if( rerr != nil || rn < 0 ){ glog("SQ",fmtstring("(%v,%v)",rn,rerr)) break } req := string(reqb[0:rn]) glog("SQ",fmtstring("(%v) %v",rn,req)) margv := strings.Split(req," "); margv = margv[1:] if( 0 < len(margv) ){ if( margv[0] == "RESP" ){ // should forward to the destination continue; } } now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) res := fmtstring("%v "+"CAST"+" %v",tstamp,req) wn := 0; werr := error(nil); if( 0 < len(margv) && margv[0] == "BCAST" ){ wn, werr = ws_broadcast(res); }else{ wn, werr = ws.Write([]byte(res)) } gchk("SE",werr) glog("SR",fmtstring("(%v) %v",wn,string(res))) } glog("SF","WS response finish") wsv := []*websocket.Conn{} wsx := 0 for i,v := range WSV { if( v != ws ){ wsx = i wsv = append(wsv,v) } } WSV = wsv //glog("CO","closed %v",ws) glog("CO","closed connection [%v/%v]",wsx+1,len(WSV)+1) ws.Close() } // url ::= [scheme://]host[:port][/path] func decomp_URL(url string){ } func full_wsURL(){ } func gj_server(argv []string) { gjserv := gshws_url gjport := gshws_server gjpath := gshws_path gjscheme := "ws" //cmd := argv[0] argv = argv[1:] if( 1 <= len(argv) ){ serv := argv[0] if( 0 < strings.Index(serv,"://") ){ schemev := strings.Split(serv,"://") gjscheme = schemev[0] serv = schemev[1] } if( 0 < strings.Index(serv,"/") ){ pathv := strings.Split(serv,"/") serv = pathv[0] gjpath = pathv[1] } servv := strings.Split(serv,":") host := "localhost" port := 9999 if( servv[0] != "" ){ host = servv[0] } if( len(servv) == 2 ){ fmt.Sscanf(servv[1],"%d",&port) } //glog("LC","hostport=%v (%v : %v)",servv,host,port) gjport = fmt.Sprintf("%v:%v",host,port) gjserv = gjscheme + "://" + gjport + "/" + gjpath } glog("LS",fmtstring("listening at %v",gjserv)) http.Handle("/"+gjpath,websocket.Handler(serv1)) err := error(nil) if( gjscheme == "wss" ){ // https://golang.org/pkg/net/http/#ListenAndServeTLS //err = http.ListenAndServeTLS(gjport,nil) }else{ err = http.ListenAndServe(gjport,nil) } gchk("LE",err) } func gj_client(argv []string) { glog("CS",fmtstring("connecting to %v",gshws_url)) ws, err := websocket.Dial(gshws_url,"",gshws_origin) gchk("C",err) var resb = make([]byte, GSHWS_MSGSIZE) for qi := 0; qi < 3; qi++ { req := fmtstring("Hello, GShell! (%v)",qi) wn, werr := ws.Write([]byte(req)) glog("QM",fmtstring("(%v) %v",wn,req)) gchk("QE",werr) rn, rerr := ws.Read(resb) gchk("RE",rerr) glog("RM",fmtstring("(%v) %v",rn,string(resb))) } glog("CF","WS request finish") } // //
/* */ /* */ /*
Live HTML Snapshot
*/ /*
Event sharing

Inter-window communicaiton

frame0 >>> frame1 and frame2
frame1 >>> frame0 and frame2
frame2 >>> frame0 and frame1




*/ /* // /*
Wirtual Desktop

CosmoScreen 0.0.8

ScopeControl command keys
g ... grid on/off
i ... zoom in
o ... zoom out
s ... save current scope
r ... restore saved scope

Monitor < x wall-paper: WD-WallPaler03.png

Desktop < x

Display < x < <

Content X Y shift+wheel for horizontal scroll

Scopexx < | >

Scopeyy < | >

Scopezz < | >

Display

Overflo "scroll" imprisons windows inside the display

CosmoScreen 0.0.8
00:00

WirtualSpace 1.

Reload
Reload
Reload
*/ //
// // /*
SBSidebar

SBSidebar

// 2020-1006 its-more.jp-blog-60000-style.css
*/ //
// // // /*
Affiliate

Supportive Affiliate

*/ //
// // // /*
Font Selector

Font Selection

ArialGShell-Go012GShell-Go012GShell-Go012GShell-Go012
CourierGShell-Go012GShell-Go012GShell-Go012GShell-Go012
Courier NewGShell-Go012GShell-Go012GShell-Go012GShell-Go012
GeorgiaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
HelveticaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
VerdanaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
TimesGShell-Go012GShell-Go012GShell-Go012GShell-Go012
OsakaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
MeiryoGShell-Go012GShell-Go012GShell-Go012GShell-Go012
YuMinchoGShell-Go012GShell-Go012GShell-Go012GShell-Go012
SerifGShell-Go012GShell-Go012GShell-Go012GShell-Go012
Sans-SerifGShell-Go012GShell-Go012GShell-Go012GShell-Go012
System-UIGShell-Go012GShell-Go012GShell-Go012GShell-Go012
MonospaceGShell-Go012GShell-Go012GShell-Go012GShell-Go012
CursiveGShell-Go012GShell-Go012GShell-Go012GShell-Go012
FantasyGShell-Go012GShell-Go012GShell-Go012GShell-Go012

Drawing Text on Canvas

Pixels Bold Italic

*/ //
// // // /*
Shading Canvas

Shading Canvas

Commands
Placement Mode
a ... apply (into absolute position)
j ... bring down (ArrowDown)
k ... bring up (ArrowUp)
h ... bring left (ArrowLeft)
l ... bring right (ArrowRight)
0 ... z-index = 0
+ ... z-index += 1
- ... z-index -= 1
r ... return to here (relative position)
c ... clear the log text
Note: the HTML text must be contenteditable to catch Key Event.
My Canvas.
*/ //
// // // /*
Character Map

Unicode Character Map

code 0x0000 - 0xFFFF / 16px / 3200 x 3200 px / zoom:0.25

*/ //
// // // /*
Collaborated Pointillism

Collaborated Pointillism

Share
XY1 XY1-remote XY2 XY2-remote

*/ //
// // // /*
Work StatCounter

StatCounter

hit counter (counter as image tag)
StatCounter - Free Web Tracker and Counter (counter by inline script)
*/ //
// // // /*
Work Template

Template of Work

*/ //
// // // /*
Original Source

Original Source of GShell

*/ //
// //
//
//3419043851 360022 gsh (2020/09/19 05:16:10)

StatCounter導入

社長:昨日 outrage という記事を書いていて Windows の事を思い出しました。

開発:Rage って名前のブラウザでも作りますかね。

基盤:そういえばレノボ君もたまには動かしてやらないと、ファンが錆びついちゃうかも知れませんね。電源ON。

レノボ:ガ・オーン… ううぅぅぅ…

基盤:やっぱ最初は吠えますね。

開発:もう涼しくなったので、夏場みたいにファンが回り続けることはないでしょうけどね。

レノボ:ぅぅぅぅぅ…

基盤:回り続けてるみたいです。

開発:まあでも、気に障るような音では無いですね。

基盤:というか、1分でスリープでは厳しいのでもう少し伸ばしましょう。

社長:たぶんこのこは省電力だと思いますし、何か継続的なバックグラウンド的な仕事をさせてあげたいです。

経理:これまでのところ、実働2ヶ月ですね。5万円/月相当です。

基盤:同等な価格でMacMiniはもう5ヶ月みっちり働きづめです。

開発:この2ヶ月GShellの開発作業ではiMac Retinaが必須になっているので、値がはりましたが、これも必要な買い物だったと思います。純正増設RAMだけは悔やまれますが。

経理:なんといっても我社で唯一の固定資産です。

社長:今はもうハードが急速に陳腐化する時代ではないですから、レノボ君はこの先も使いものになると思います。

基盤:Hyper/Vブームの頃にSSDとRAMも増設しましたしね。懐かしいです。

社長:まああれはあれで楽しんだと言うか、よい勉強になったと思います。リモートデスクトップも不可欠だったし、9万円台で Windows Pro入りって、やはりお値打ちだったなと。

開発:このリモートデスクトップのアイコンはどうにも、血管ブチ切れマークに見えて仕方がありません。

社長:私はこうたりさんを思い出します。

基盤:当時のOperaが開きっぱなしになってます。

開発:おー、うちのサイトのヘッダが最初のバージョンですね。ITS more の吹き出しすら無い。このウィンドウは永久保存でしょうw

社長:サイドバーを見ると5/22に開いたもののようです。5ヶ月近く前ですね。タブを見るとこの頃Vivaldiに興味を持ったようです。

基盤:WordPressのメディアライブラリで見ると、吹き出しを付けたのは5/24のようです。

開発:動態保存は難しいとしても、毎日のデスクトップのスクリーンショットを取って置くと面白そうです。1時間おきくらいに。

基盤:いつもMissionコントロールでデスクトップ10枚くらい開いてますから、結構な量になりそうですが。その上Retinaだと。

* * *

社長:それで、GShell は Windows で動くんでしょうかね?

開発:HTML部分は問題ないと思いますが。 Golang部分はUnixのsyscall とか使ってますからダメでしょうね。ちょっとやってみましょうか。

基盤:HTML部分ですが、6ブラウザで昨日の描画機能を動かしてみると、Safari以外はかなり反応が悪いですね。マウス動作のイベント発生がまばらなんでしょうか?というかこのWindows用Safari、2012年版みたいです。HTML4でしょうか?

基盤:details が無いのから始まって、gsh.go.html がえらいことになってます。だけどマウス動作の追随が速いのがちょっと魅力。

社長:サンプリング間隔は設定できるんじゃないですかね?

開発:で、Golang部分ですが… とりあえず go build gsh.go。ああ、まず WebSocketのパッケージが無いと言ってきました。go get ... おお、git が無いと。cygwinに感謝しつつインストール… ビルド… あ、やっぱりsyscall関係でエラーがボロボロと。

シェア

社長:ところで各OSのシェアってどんな感じなんですかね。

開発:あっかい赤いとっきめっきが♪

基盤:いろんな統計が有るようですが… ああ、この gs.statcounter.com ってサイトのは長期のグラフが見えますね。ウェーすげー。いろんな切り取り方もできる。まず、世界でのシェア。

https://gs.statcounter.com/os-market-share/desktop/worldwide/#monthly-200901-202009

基盤:そして日本でのシェア。

https://gs.statcounter.com/os-market-share/desktop/japan/#monthly-200901-202009

開発:会社では強制Windowって多いと思いますから、家庭でのmacOSのシェアはもっと高いんでしょうね。

基盤:ちなみにブラウザのシェア。

https://gs.statcounter.com/browser-market-share#monthly-200901-202009

社長:10年前のシェアはたしかにこんな感じでした。IE vs Firefox。

基盤:IEの終わりっぷりが豪快です。

開発:Firefoxもすっかりその他大勢になってしまいましたね。

基盤:Vivaldi は破線の一部ですけどね。

社長:やはりブラウザの色分けとしては、Chromeが緑、Firefoxが柿色、Safariが灰色、Operaが赤、という認識みたいですね。

* * *

開発:ふぁ… そろそろ毛布くらい掛けて寝ないと風邪ひきそうです。

基盤:異常事態。xsoのwebへのアクセスが今日未明から突然1/4以下に激減しました。

社長:ブラックリストにでも載りましたかね?

基盤:調査…

基盤:ああ、jp1 のリバースプロキシが死んでました。何かのための01:18に再起動が掛けられてるのですが、ポートがつかめなくて起動できなかったようです。

開発:未明と言っても、昨日は結構飲んで爆睡してたのでは?夢遊病?

基盤:outrage の投稿の最終更新時刻が 01:01 になってますね。

社長:3/4はリバースプロキシからで、たぶんロボットだということですね。

基盤:残りの25%のうちの60%近くが、もうひとつのリバースプロキシ delegate.org からのものです。

開発:つまり直接来ているアクセスは10%だけですか。

基盤:で、そのうちのやはり90%以上はロボットと思われます。

開発:ロボット率99%以上ですか。

社長:つまりあのカウンターは、おおむねロボットカウンターということですね。

開発:見方を変えれば、毎月1万カウント祭りができるのもロボットのおかげということですね。

基盤:ただその割には、曜日による規則的変動がありますし、長期休暇時の減少も大きいんです。ロボットも人間の休暇に合わせて休むんでしょうか?

開発:鉄人28号みたいにマニュアル制御のロボットなのかもですね。

社長:うちもその、statcounter というのを入れてみてはどうでしょうね。

経理:月100円くらいなら妥当かと思います。

基盤:プライシング… 月$9です。ライトセール2機ぶん弱。

社長:おー…

開発:WakWakの放置カウンターと同じくらいですよね。

経理:これを入れるならまずあちらを斬るべきではと。

社長:会員ログインできないんですよね…

* * *

開発:でも、こっちの手元には完全なアクセスログがあるのに、それ以上に何か意味のある情報が得られるんでしょうかね?

社長:まあ、Free版でやってみましょう。

基盤:サイトの情報を入れて…ぼちっと。ああ、このJavaScriptをサイトのページに貼れって。ちょっとここに張ってみましょう。↓

hit
counter
 ←これ

開発:えらくちまっとしてますね。

基盤:そういう選択をしましたので。おおっ、このスタッツビューア、面白すぎる。。。

社長:栄え有る訪問者1号になりましたね。

基盤:訪問者のマップも出ます。

社長、開発:おおーーっ!

社長:エンタメ要素、重要ですねぇ。

開発:ショートコードにしてサイドバーに貼っておきましょう。

* * *

-- 2020-1017 SatoxITS

outrage#。

社長:ただぃまぁぁ。まる。

経理:酒クサっ…

社長:いやー、きっちり飲むとどうしても8LSUは超えますね。

開発:経費と別の次元の出費には別の単位が必要かもですね。

社長:外はもうかなり寒くなってて、行きは薄手のシャツでは肌寒かったです。帰りにはもう温度センサーが麻痺してましたけど。

開発:昔はよく、酔っ払って目が醒めたら見知らぬ所に居てここはどこ?っていう夢を見ましたね。で、気がつくとズボン履いてないとか、靴がない。どうしてそうなったのか思い出せなくて苦しい、という夢なんです。

基盤:何か意味があるんですかね?

社長:酔っ払うと脱いじゃうって癖の人もいますよね。

開発:靴が無い夢は今でも見るんです。あれは実際、就職して新人歓迎会で泥酔して、目が醒めたら本館の全然別方向の廊下に倒れてて、すごくお気に入りだった靴を片方無かったていう体験から来てるのかもしれないです。その後何度か業務室に行って、靴の落とし物は届けられてないでしょうか?って尋ねたり。

社長:終業後に職場で酒盛りってのがあった時代でしたね。手作りコンパ的な。

開発:まあ、学生時代は研究室でタバコすぱすぱ、実験用アルコールなめたりしながらやってましたけどね。

社長:メチルの含有量を気にしながらw

基盤:あり得ない。

開発:そんな時代もあったんです。

社長:今思えば、同室の人にはえらい迷惑だったでしょうね。

開発:それに比べると社会人は規律が厳しいなあって感じがしました。12時過ぎると出入り口が施錠されちゃうし、届け出的なのを守衛室で書かなくちゃいけないとか、とっても面倒で。

基盤:いったいいつの時代の話でしょう?

開発:まあ1980-90年代の話です。時効です。

社長:それで、昔は結構いろんなことで激昂してたなって思ったんです。

開発:ガッデム来るって言ってましたね。

社長:こういう生活するようになった事もあって、最近はそういう起伏がほとんど無くなってしまいました。怒りというのも貴重なエネルギー源だと思うのですが。感動とはまた別の。

基盤:それで眠くなっちゃうんですかね。

開発:ただ、今でも残ってるのが、MSIEに対する怒りですね。あれだけは許せないというか。関係者全員一族郎党根絶やしにしたい的な。

社長:三条河原で釜茹でですかね。

開発:まあMDNの互換性リストでさらし首になってますけどね。

基盤:郎党で巻き添えになるのは嫌だなあ。

-- 2020-1016 SatoxITS

GShell 0.7.0 − シンクロブラゥザース

複数ブラウザでの同時描画

社長:おはようございます。

基盤:おはようございます。

開発:昨日は飲んで帰ってぱったり寝てしまいましたね。

社長:これだけ長時間眠ったのは久しぶりな気がします。それで、南側のベランダにいつもとは違う空気を感じたので写真を撮りました。

基盤:でも、北側の筑波山の方の空のように面白くは無いですね。

社長:小腹がすいてる感じなので何か食べましょう。

開発:カップ麺ブームの時には沢山ストックがあったのですが… あ、どんべぇが残ってました。

基盤:それ、緑のたぬきって書いてありますね。

開発:どう違うんでしょう… ああ、どん兵衛は日清で緑のたぬきは東洋水産… どこだこれ?

基盤:検索… マルちゃんのことみたいです。

社長:あー、お腹が落ち着いたらまた眠くなってきました。

開発:一般に寝溜めは効かないと言われており、必要以上の睡眠は時間の、つまり人生の無駄と思われます。

社長:何のためにどれだけ必要なのか知らないですが、睡眠が必要だから眠くなってるのと違うんでしょうかね?顔でも洗ってきます…

麦茶きのこ

社長:ふぅ… GUMとリステリンのカクテルして来ました。

基盤:リステリンは目が醒めますよね。

社長:その後しばらくものの味がしなくなりますけどね。コーヒー飲みたいのに。

開発:そういえば一昨日のあれ、お腹壊さなかったようですね。

基盤:あれって、麦茶きのこですか。

社長:クスリを飲み下すのに、近くにあった麦茶のボトルからコーヒーカップに少し注いで飲んだんですが、何かグミ状のものを感じたんですが、変な味もしなかったし飲んじゃったんです。あれ?Gokuriでもこれで飲んでその残りかな?と思ったんですが、そんな事はなく。麦茶のボトルを見て振ってみると、なにやらゲル状のコロニー的なものがところどころに浮遊している。ぎょっとしました。

開発:あれは飲み残して、たぶん2週間くらい室温下にありましたね。

社長:いざというとき保健所に見せようかと保存して置きましたが、もう要らないですね。無害だったのか、体内の小人さん達が闘ってくれたのか。ときどきゴロゴロ言ってたような気もします。それで思い出したのが、遠い昔に流行った紅茶キノコという恐ろしげな健康食品?です。健康にいいんだそうだとか言って、両親がそれを飲んでいるのを見て、異星人かと思いましたよ。

開発:10年位前はとても腰が痛かったことがありますね。内蔵のどこかもシクシクしてて。

社長:年を取るとそういうものなのかと思ってたんですが、5年位まえにかなり改善して、退職してからは全くどこも痛くなくなりました。サプリとかも全く飲まなくなったのですが。基本的には生活する時の身体の姿勢の問題なんだろうと思っていますが。

基盤:いわゆる療養生活みたいな状態ですかね。

社長:何の規則も課さないという実験的療養ですね。食べたい時に食べ、寝たい時に寝る。仕事はその時一番面白いと思う事を、やりたい時にやりたいだけする。でも深追いはしない。

開発:やりたくないことをやらないといけないストレスからは解放されたのですが、やりたいことがつもり過ぎてそれがストレスになっている気はします。

社長:宝の山のどこから整理して行こうかっていう、有る種のうんざり感ですね。

開発:それから逃避しようとして眠くなるんじゃないかと思われます。

基盤:リステリンは牛乳を飲んだら少しおさまったような。

社長:コーヒーと牛乳はほんとうにベストミックスですよね。どれ、一杯入れて始業しますか。

共同制作点描

社長:さて、今日はどこから行きましょう。

開発:Canvas で点描して、WebSocket経由で別のブラウザのCanvasにリアルタイム複製する。これをやろうかと。

社長:いよいよですね。

基盤:点を書くのもイマイチなので、点に文字・テキストを置くのはどうでしょう?

開発:それも良いですね。

* * *

開発:ふぅ、ようやく準備ができました。

社長:だいぶ手間取りましたね。

開発:いやあ、2つのエレメントを横に並べる方法がどうにもわからなくて。CSSのclass だけでやりたかったんですが、とりあえず諦めて、エレメント指名して配置しました。

開発:仕掛けとしては、左のcanvasでマウスを動かすとその位置情報を右のcanvasにも送ります。逆も同様。あとは、点を打つだけです。

基盤:ワクワクしますね。

社長:一休みしましょう。

* * *

開発:マウス位置に四角を書く準備、できました。

基盤:画面録画OKです。

社長:では、お願いします。

開発:では。マウスでスルスルー、クルリンパ、っと。

全員:おおーっ!

開発:なんですかねー、できるとわかっていてもなんだか感激しますね。

基盤:感動しました。

社長:目が覚めました。

社長:ところでこれって、ページ全体に透明canvasを被せて、マウスの軌跡を書くと面白そうですね。

開発:やってみましょう。

基盤:絵を書いてコマンドにするってのも良いかもです。手書きコマンド。

開発:やってみたいですね。

社長:どこでクリックしたとか、キー入力したとかも印をつけて。

基盤:Unicodeで色んな絵文字が使えますね。

開発:やりたいですね。

録画再生機能

社長:で、どうなりましたかね。

開発:録画再生機能をつけてみました。

社長、基盤:おー。

開発:反応が薄いですねw まあ機能的にはあたりまえっちゃあ当たり前ですが。わたし的には、JavaScriptの配列と、setTimeoutという関数を初めて使ってみた、という記念の例でした。

社長:早くブラウザ間でのキャンバス共有をやりましょうよ。

開発:まあ、やればできることはわかってますから。

開発:それはそうと、なんとか検索エンジンのロボットにお絵かきをさせられないでしょうかね?

社長:基本、アンカーを手繰ってくるだけでしょうからねぇ… ロボットからのアクセスをなんらかの形で視覚化することはできるでしょうけど。

基盤:どのアドレスのロボットがどこにアクセスしてるかを、リアルタイムでぴこぴこさせたら面白いとは思います。

社長:サーバからWebSocketなりでアクセス状況を配信する必要がありますね。

開発:CAPTCHAとして、手書きの絵とか文字を書いてもらうと面白いかなと思うんですが。ああこれは、人間の書いた絵だなみたいな。

基盤:もぐらたたきとかもいいですよね。

開発:なんにしてもGUIならではの面白さって、やっぱりありますね。

社長:コーヒー飲んだら、ブラウザ間共有をやりましょう。

ブラウザ間共同点描

開発:とりあえずできました。

社長:ついにその日が来ましたか。うるる。

開発:急ごしらえのマルチキャストプロトコルで行きます。まずはブラウザ内でのWebSocket経由版のテスト。

社長、基盤:おそっ!

開発:ゴミがたまりましたかね。・・・気を取り直して、Firefoxにて。

社長、基盤:おおーっ。

開発:そしてブラウザ間共有、4ブラウザ同時で行きます。

社長、基盤:おおおーーっっ!

社長:感動した!

* * *

開発:遅かった原因がわかりました。innerHTMLにログをバリバリ追加してたのが辛かったようです。それを外して、全ブラウザそろい踏みで行きます。

社長、基盤:おおーっ。

社長:素晴らしい。性能的にも問題なさそうです。

* * *

基盤:誰にどういう色を割り当てるかとか面白そうです。

開発:ブラウザの色的には、Firefoxが柿色、Operaが紅、Vivaldiがオレンジ、Safariがグレーは決まりでしょうかね。赤系の区別が難しいですが。

基盤:Edgeが水色で、Chromeは緑ですかね?

社長:スマホ版のイメージだと、Operaは紫っぽいですね。Vivaldiはピンクとかでどうですかね。

開発:いやー、今日はめずらしく、朝たてた計画がそのとおりに実現しました。こんなに早い時間に。

社長:めでたいです。後片付けをして飲みに行きましょう。

-- 2020-1016 SatoxITS

/* GShell-0.7.0 by SatoxITS
GShell version 0.7.0 // 2020-10-16 // SatoxITS
*/ // // /*
Topbar

Topbar

*/ //
// // // /*
Indexer

Indexer

*/ //
// /*

GShell // a General purpose Shell built on the top of Golang

It is a shell for myself, by myself, of myself. --SatoxITS(^-^) prev.

Edit Save Load Vers 0 Fork Stop Unfold Digest Source
*/ /*
Statement

Fun to create a shell

For a programmer, it must be far easy and fun to create his own simple shell rightly fitting to his favor and necessities, than learning existing shells with complex full features that he never use. I, as one of programmers, am writing this tiny shell for my own real needs, totally from scratch, with fun.

For a programmer, it is fun to learn new computer languages. For long years before writing this software, I had been specialized to C and early HTML2 :-). Now writing this software, I'm learning Go language, HTML5, JavaScript and CSS on demand as a novice of these, with fun.

This single file "gsh.go", that is executable by Go, contains all of the code written in Go. Also it can be displayed as "gsh.go.html" by browsers. It is a standalone HTML file that works as the viewer of the code of itself, and as the "home page" of this software.

Because this HTML file is a Go program, you may run it as a real shell program on your computer. But you must be aware that this program is written under situation like above. Needless to say, there is no warranty for this program in any means.

Aug 2020, SatoxITS (sato@its-more.jp)
*/ /*
Features

Cross-browser communication

... to be written ...

Vi compatible command line editor

The command line of GShell can be edited with commands compatible with vi. As in vi, you can enter command mode by ESC key, then move around in the history by j k / ? n N, or within the current line by l h f w b 0 $ % or so.

*/ /*
Index
Documents Command summary Go lang part Package structures import struct Main functions str-expansion // macro processor finder // builtin find + du grep // builtin grep + wc + cksum + ... plugin // plugin commands system // external commands builtin // builtin commands network // socket handler remote-sh // remote shell redirect // StdIn/Out redireciton history // command history rusage // resouce usage encode // encode / decode IME // command line IME getline // line editor scanf // string decomposer interpreter // command interpreter main JavaScript part Source Builtin data CSS part Source References Internal External Whole parts Source Download Dump
*/ //
//Go Source
// gsh - Go lang based Shell // (c) 2020 ITS more Co., Ltd. // 2020-0807 created by SatoxITS (sato@its-more.jp) package main // gsh main // Imported packages // Packages import ( "fmt" // fmt "strings" // strings "strconv" // strconv "sort" // sort "time" // time "bufio" // bufio "io/ioutil" // ioutil "os" // os "syscall" // syscall "plugin" // plugin "net" // net "net/http" // http //"html" // html "path/filepath" // filepath "go/types" // types "go/token" // token "encoding/base64" // base64 "unicode/utf8" // utf8 //"gshdata" // gshell's logo and source code "hash/crc32" // crc32 "golang.org/x/net/websocket" ) // // 2020-0906 added, // // CGo // #include "poll.h" // // to be closed as HTML tag :-p // typedef struct { struct pollfd fdv[8]; } pollFdv; // int pollx(pollFdv *fdv, int nfds, int timeout){ // return poll(fdv->fdv,nfds,timeout); // } import "C" // // 2020-0906 added, func CFpollIn1(fp*os.File, timeoutUs int)(ready uintptr){ var fdv = C.pollFdv{} var nfds = 1 var timeout = timeoutUs/1000 fdv.fdv[0].fd = C.int(fp.Fd()) fdv.fdv[0].events = C.POLLIN if( 0 < EventRecvFd ){ fdv.fdv[1].fd = C.int(EventRecvFd) fdv.fdv[1].events = C.POLLIN nfds += 1 } r := C.pollx(&fdv,C.int(nfds),C.int(timeout)) if( r <= 0 ){ return 0 } if (int(fdv.fdv[1].revents) & int(C.POLLIN)) != 0 { //fprintf(stderr,"--De-- got Event\n"); return uintptr(EventFdOffset + fdv.fdv[1].fd) } if (int(fdv.fdv[0].revents) & int(C.POLLIN)) != 0 { return uintptr(NormalFdOffset + fdv.fdv[0].fd) } return 0 } const ( NAME = "gsh" VERSION = "0.7.0" DATE = "2020-10-16" AUTHOR = "SatoxITS(^-^)//" ) var ( GSH_HOME = ".gsh" // under home directory GSH_PORT = 9999 MaxStreamSize = int64(128*1024*1024*1024) // 128GiB is too large? PROMPT = "> " LINESIZE = (8*1024) PATHSEP = ":" // should be ";" in Windows DIRSEP = "/" // canbe \ in Windows ) // -xX logging control // --A-- all // --I-- info. // --D-- debug // --T-- time and resource usage // --W-- warning // --E-- error // --F-- fatal error // --Xn- network // Structures type GCommandHistory struct { StartAt time.Time // command line execution started at EndAt time.Time // command line execution ended at ResCode int // exit code of (external command) CmdError error // error string OutData *os.File // output of the command FoundFile []string // output - result of ufind Rusagev [2]syscall.Rusage // Resource consumption, CPU time or so CmdId int // maybe with identified with arguments or impact // redireciton commands should not be the CmdId WorkDir string // working directory at start WorkDirX int // index in ChdirHistory CmdLine string // command line } type GChdirHistory struct { Dir string MovedAt time.Time CmdIndex int } type CmdMode struct { BackGround bool } type Event struct { when time.Time event int evarg int64 CmdIndex int } var CmdIndex int var Events []Event type PluginInfo struct { Spec *plugin.Plugin Addr plugin.Symbol Name string // maybe relative Path string // this is in Plugin but hidden } type GServer struct { host string port string } // Digest const ( // SumType SUM_ITEMS = 0x000001 // items count SUM_SIZE = 0x000002 // data length (simplly added) SUM_SIZEHASH = 0x000004 // data length (hashed sequence) SUM_DATEHASH = 0x000008 // date of data (hashed sequence) // also envelope attributes like time stamp can be a part of digest // hashed value of sizes or mod-date of files will be useful to detect changes SUM_WORDS = 0x000010 // word count is a kind of digest SUM_LINES = 0x000020 // line count is a kind of digest SUM_SUM64 = 0x000040 // simple add of bytes, useful for human too SUM_SUM32_BITS = 0x000100 // the number of true bits SUM_SUM32_2BYTE = 0x000200 // 16bits words SUM_SUM32_4BYTE = 0x000400 // 32bits words SUM_SUM32_8BYTE = 0x000800 // 64bits words SUM_SUM16_BSD = 0x001000 // UNIXsum -sum -bsd SUM_SUM16_SYSV = 0x002000 // UNIXsum -sum -sysv SUM_UNIXFILE = 0x004000 SUM_CRCIEEE = 0x008000 ) type CheckSum struct { Files int64 // the number of files (or data) Size int64 // content size Words int64 // word count Lines int64 // line count SumType int Sum64 uint64 Crc32Table crc32.Table Crc32Val uint32 Sum16 int Ctime time.Time Atime time.Time Mtime time.Time Start time.Time Done time.Time RusgAtStart [2]syscall.Rusage RusgAtEnd [2]syscall.Rusage } type ValueStack [][]string type GshContext struct { StartDir string // the current directory at the start GetLine string // gsh-getline command as a input line editor ChdirHistory []GChdirHistory // the 1st entry is wd at the start gshPA syscall.ProcAttr CommandHistory []GCommandHistory CmdCurrent GCommandHistory BackGround bool BackGroundJobs []int LastRusage syscall.Rusage GshHomeDir string TerminalId int CmdTrace bool // should be [map] CmdTime bool // should be [map] PluginFuncs []PluginInfo iValues []string iDelimiter string // field sepearater of print out iFormat string // default print format (of integer) iValStack ValueStack LastServer GServer RSERV string // [gsh://]host[:port] RWD string // remote (target, there) working directory lastCheckSum CheckSum } func nsleep(ns time.Duration){ time.Sleep(ns) } func usleep(ns time.Duration){ nsleep(ns*1000) } func msleep(ns time.Duration){ nsleep(ns*1000000) } func sleep(ns time.Duration){ nsleep(ns*1000000000) } func strBegins(str, pat string)(bool){ if len(pat) <= len(str){ yes := str[0:len(pat)] == pat //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,yes) return yes } //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,false) return false } func isin(what string, list []string) bool { for _, v := range list { if v == what { return true } } return false } func isinX(what string,list[]string)(int){ for i,v := range list { if v == what { return i } } return -1 } func env(opts []string) { env := os.Environ() if isin("-s", opts){ sort.Slice(env, func(i,j int) bool { return env[i] < env[j] }) } for _, v := range env { fmt.Printf("%v\n",v) } } // - rewriting should be context dependent // - should postpone until the real point of evaluation // - should rewrite only known notation of symobl func scanInt(str string)(val int,leng int){ leng = -1 for i,ch := range str { if '0' <= ch && ch <= '9' { leng = i+1 }else{ break } } if 0 < leng { ival,_ := strconv.Atoi(str[0:leng]) return ival,leng }else{ return 0,0 } } func substHistory(gshCtx *GshContext,str string,i int,rstr string)(leng int,rst string){ if len(str[i+1:]) == 0 { return 0,rstr } hi := 0 histlen := len(gshCtx.CommandHistory) if str[i+1] == '!' { hi = histlen - 1 leng = 1 }else{ hi,leng = scanInt(str[i+1:]) if leng == 0 { return 0,rstr } if hi < 0 { hi = histlen + hi } } if 0 <= hi && hi < histlen { var ext byte if 1 < len(str[i+leng:]) { ext = str[i+leng:][1] } //fmt.Printf("--D-- %v(%c)\n",str[i+leng:],str[i+leng]) if ext == 'f' { leng += 1 xlist := []string{} list := gshCtx.CommandHistory[hi].FoundFile for _,v := range list { //list[i] = escapeWhiteSP(v) xlist = append(xlist,escapeWhiteSP(v)) } //rstr += strings.Join(list," ") rstr += strings.Join(xlist," ") }else if ext == '@' || ext == 'd' { // !N@ .. workdir at the start of the command leng += 1 rstr += gshCtx.CommandHistory[hi].WorkDir }else{ rstr += gshCtx.CommandHistory[hi].CmdLine } }else{ leng = 0 } return leng,rstr } func escapeWhiteSP(str string)(string){ if len(str) == 0 { return "\\z" // empty, to be ignored } rstr := "" for _,ch := range str { switch ch { case '\\': rstr += "\\\\" case ' ': rstr += "\\s" case '\t': rstr += "\\t" case '\r': rstr += "\\r" case '\n': rstr += "\\n" default: rstr += string(ch) } } return rstr } func unescapeWhiteSP(str string)(string){ // strip original escapes rstr := "" for i := 0; i < len(str); i++ { ch := str[i] if ch == '\\' { if i+1 < len(str) { switch str[i+1] { case 'z': continue; } } } rstr += string(ch) } return rstr } func unescapeWhiteSPV(strv []string)([]string){ // strip original escapes ustrv := []string{} for _,v := range strv { ustrv = append(ustrv,unescapeWhiteSP(v)) } return ustrv } // str-expansion // - this should be a macro processor func strsubst(gshCtx *GshContext,str string,histonly bool) string { rbuff := []byte{} if false { //@@U Unicode should be cared as a character return str } //rstr := "" inEsc := 0 // escape characer mode for i := 0; i < len(str); i++ { //fmt.Printf("--D--Subst %v:%v\n",i,str[i:]) ch := str[i] if inEsc == 0 { if ch == '!' { //leng,xrstr := substHistory(gshCtx,str,i,rstr) leng,rs := substHistory(gshCtx,str,i,"") if 0 < leng { //_,rs := substHistory(gshCtx,str,i,"") rbuff = append(rbuff,[]byte(rs)...) i += leng //rstr = xrstr continue } } switch ch { case '\\': inEsc = '\\'; continue //case '%': inEsc = '%'; continue case '$': } } switch inEsc { case '\\': switch ch { case '\\': ch = '\\' case 's': ch = ' ' case 't': ch = '\t' case 'r': ch = '\r' case 'n': ch = '\n' case 'z': inEsc = 0; continue // empty, to be ignored } inEsc = 0 case '%': switch { case ch == '%': ch = '%' case ch == 'T': //rstr = rstr + time.Now().Format(time.Stamp) rs := time.Now().Format(time.Stamp) rbuff = append(rbuff,[]byte(rs)...) inEsc = 0 continue; default: // postpone the interpretation //rstr = rstr + "%" + string(ch) rbuff = append(rbuff,ch) inEsc = 0 continue; } inEsc = 0 } //rstr = rstr + string(ch) rbuff = append(rbuff,ch) } //fmt.Printf("--D--subst(%s)(%s)\n",str,string(rbuff)) return string(rbuff) //return rstr } func showFileInfo(path string, opts []string) { if isin("-l",opts) || isin("-ls",opts) { fi, err := os.Stat(path) if err != nil { fmt.Printf("---------- ((%v))",err) }else{ mod := fi.ModTime() date := mod.Format(time.Stamp) fmt.Printf("%v %8v %s ",fi.Mode(),fi.Size(),date) } } fmt.Printf("%s",path) if isin("-sp",opts) { fmt.Printf(" ") }else if ! isin("-n",opts) { fmt.Printf("\n") } } func userHomeDir()(string,bool){ /* homedir,_ = os.UserHomeDir() // not implemented in older Golang */ homedir,found := os.LookupEnv("HOME") //fmt.Printf("--I-- HOME=%v(%v)\n",homedir,found) if !found { return "/tmp",found } return homedir,found } func toFullpath(path string) (fullpath string) { if path[0] == '/' { return path } pathv := strings.Split(path,DIRSEP) switch { case pathv[0] == ".": pathv[0], _ = os.Getwd() case pathv[0] == "..": // all ones should be interpreted cwd, _ := os.Getwd() ppathv := strings.Split(cwd,DIRSEP) pathv[0] = strings.Join(ppathv,DIRSEP) case pathv[0] == "~": pathv[0],_ = userHomeDir() default: cwd, _ := os.Getwd() pathv[0] = cwd + DIRSEP + pathv[0] } return strings.Join(pathv,DIRSEP) } func IsRegFile(path string)(bool){ fi, err := os.Stat(path) if err == nil { fm := fi.Mode() return fm.IsRegular(); } return false } // Encode / Decode // Encoder func (gshCtx *GshContext)Enc(argv[]string){ file := os.Stdin buff := make([]byte,LINESIZE) li := 0 encoder := base64.NewEncoder(base64.StdEncoding,os.Stdout) for li = 0; ; li++ { count, err := file.Read(buff) if count <= 0 { break } if err != nil { break } encoder.Write(buff[0:count]) } encoder.Close() } func (gshCtx *GshContext)Dec(argv[]string){ decoder := base64.NewDecoder(base64.StdEncoding,os.Stdin) li := 0 buff := make([]byte,LINESIZE) for li = 0; ; li++ { count, err := decoder.Read(buff) if count <= 0 { break } if err != nil { break } os.Stdout.Write(buff[0:count]) } } // lnsp [N] [-crlf][-C \\] func (gshCtx *GshContext)SplitLine(argv[]string){ strRep := isin("-str",argv) // "..."+ reader := bufio.NewReaderSize(os.Stdin,64*1024) ni := 0 toi := 0 for ni = 0; ; ni++ { line, err := reader.ReadString('\n') if len(line) <= 0 { if err != nil { fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d (%v)\n",ni,toi,err) break } } off := 0 ilen := len(line) remlen := len(line) if strRep { os.Stdout.Write([]byte("\"")) } for oi := 0; 0 < remlen; oi++ { olen := remlen addnl := false if 72 < olen { olen = 72 addnl = true } fmt.Fprintf(os.Stderr,"--D-- write %d [%d.%d] %d %d/%d/%d\n", toi,ni,oi,off,olen,remlen,ilen) toi += 1 os.Stdout.Write([]byte(line[0:olen])) if addnl { if strRep { os.Stdout.Write([]byte("\"+\n\"")) }else{ //os.Stdout.Write([]byte("\r\n")) os.Stdout.Write([]byte("\\")) os.Stdout.Write([]byte("\n")) } } line = line[olen:] off += olen remlen -= olen } if strRep { os.Stdout.Write([]byte("\"\n")) } } fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d\n",ni,toi) } // CRC32 crc32 // 1 0000 0100 1100 0001 0001 1101 1011 0111 var CRC32UNIX uint32 = uint32(0x04C11DB7) // Unix cksum var CRC32IEEE uint32 = uint32(0xEDB88320) func byteCRC32add(crc uint32,str[]byte,len uint64)(uint32){ var oi uint64 for oi = 0; oi < len; oi++ { var oct = str[oi] for bi := 0; bi < 8; bi++ { //fprintf(stderr,"--CRC32 %d %X (%d.%d)\n",crc,oct,oi,bi) ovf1 := (crc & 0x80000000) != 0 ovf2 := (oct & 0x80) != 0 ovf := (ovf1 && !ovf2) || (!ovf1 && ovf2) oct <<= 1 crc <<= 1 if ovf { crc ^= CRC32UNIX } } } //fprintf(stderr,"--CRC32 return %d %d\n",crc,len) return crc; } func byteCRC32end(crc uint32, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len) li += 1 len >>= 8 if( len == 0 ){ break } } crc = byteCRC32add(crc,slen,uint64(li)) crc ^= 0xFFFFFFFF return crc } func strCRC32(str string,len uint64)(crc uint32){ crc = byteCRC32add(0,[]byte(str),len) crc = byteCRC32end(crc,len) //fprintf(stderr,"--CRC32 %d %d\n",crc,len) return crc } func CRC32Finish(crc uint32, table *crc32.Table, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len & 0xFF) li += 1 len >>= 8 if( len == 0 ){ break } } crc = crc32.Update(crc,table,slen) crc ^= 0xFFFFFFFF return crc } func (gsh*GshContext)xCksum(path string,argv[]string, sum*CheckSum)(int64){ if isin("-type/f",argv) && !IsRegFile(path){ return 0 } if isin("-type/d",argv) && IsRegFile(path){ return 0 } file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- cksum %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- cksum %v %v\n",path,argv) } bi := 0 var buff = make([]byte,32*1024) var total int64 = 0 var initTime = time.Time{} if sum.Start == initTime { sum.Start = time.Now() } for bi = 0; ; bi++ { count,err := file.Read(buff) if count <= 0 || err != nil { break } if (sum.SumType & SUM_SUM64) != 0 { s := sum.Sum64 for _,c := range buff[0:count] { s += uint64(c) } sum.Sum64 = s } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32add(sum.Crc32Val,buff,uint64(count)) } if (sum.SumType & SUM_CRCIEEE) != 0 { sum.Crc32Val = crc32.Update(sum.Crc32Val,&sum.Crc32Table,buff[0:count]) } // BSD checksum if (sum.SumType & SUM_SUM16_BSD) != 0 { s := sum.Sum16 for _,c := range buff[0:count] { s = (s >> 1) + ((s & 1) << 15) s += int(c) s &= 0xFFFF //fmt.Printf("BSDsum: %d[%d] %d\n",sum.Size+int64(i),i,s) } sum.Sum16 = s } if (sum.SumType & SUM_SUM16_SYSV) != 0 { for bj := 0; bj < count; bj++ { sum.Sum16 += int(buff[bj]) } } total += int64(count) } sum.Done = time.Now() sum.Files += 1 sum.Size += total if !isin("-s",argv) { fmt.Printf("%v ",total) } return 0 } // grep // "lines", "lin" or "lnp" for "(text) line processor" or "scanner" // a*,!ab,c, ... sequentioal combination of patterns // what "LINE" is should be definable // generic line-by-line processing // grep [-v] // cat -n -v // uniq [-c] // tail -f // sed s/x/y/ or awk // grep with line count like wc // rewrite contents if specified func (gsh*GshContext)xGrep(path string,rexpv[]string)(int){ file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- grep %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- grep %v %v\n",path,rexpv) } //reader := bufio.NewReaderSize(file,LINESIZE) reader := bufio.NewReaderSize(file,80) li := 0 found := 0 for li = 0; ; li++ { line, err := reader.ReadString('\n') if len(line) <= 0 { break } if 150 < len(line) { // maybe binary break; } if err != nil { break } if 0 <= strings.Index(string(line),rexpv[0]) { found += 1 fmt.Printf("%s:%d: %s",path,li,line) } } //fmt.Printf("total %d lines %s\n",li,path) //if( 0 < found ){ fmt.Printf("((found %d lines %s))\n",found,path); } return found } // Finder // finding files with it name and contents // file names are ORed // show the content with %x fmt list // ls -R // tar command by adding output type fileSum struct { Err int64 // access error or so Size int64 // content size DupSize int64 // content size from hard links Blocks int64 // number of blocks (of 512 bytes) DupBlocks int64 // Blocks pointed from hard links HLinks int64 // hard links Words int64 Lines int64 Files int64 Dirs int64 // the num. of directories SymLink int64 Flats int64 // the num. of flat files MaxDepth int64 MaxNamlen int64 // max. name length nextRepo time.Time } func showFusage(dir string,fusage *fileSum){ bsume := float64(((fusage.Blocks-fusage.DupBlocks)/2)*1024)/1000000.0 //bsumdup := float64((fusage.Blocks/2)*1024)/1000000.0 fmt.Printf("%v: %v files (%vd %vs %vh) %.6f MB (%.2f MBK)\n", dir, fusage.Files, fusage.Dirs, fusage.SymLink, fusage.HLinks, float64(fusage.Size)/1000000.0,bsume); } const ( S_IFMT = 0170000 S_IFCHR = 0020000 S_IFDIR = 0040000 S_IFREG = 0100000 S_IFLNK = 0120000 S_IFSOCK = 0140000 ) func cumFinfo(fsum *fileSum, path string, staterr error, fstat syscall.Stat_t, argv[]string,verb bool)(*fileSum){ now := time.Now() if time.Second <= now.Sub(fsum.nextRepo) { if !fsum.nextRepo.IsZero(){ tstmp := now.Format(time.Stamp) showFusage(tstmp,fsum) } fsum.nextRepo = now.Add(time.Second) } if staterr != nil { fsum.Err += 1 return fsum } fsum.Files += 1 if 1 < fstat.Nlink { // must count only once... // at least ignore ones in the same directory //if finfo.Mode().IsRegular() { if (fstat.Mode & S_IFMT) == S_IFREG { fsum.HLinks += 1 fsum.DupBlocks += int64(fstat.Blocks) //fmt.Printf("---Dup HardLink %v %s\n",fstat.Nlink,path) } } //fsum.Size += finfo.Size() fsum.Size += fstat.Size fsum.Blocks += int64(fstat.Blocks) //if verb { fmt.Printf("(%8dBlk) %s",fstat.Blocks/2,path) } if isin("-ls",argv){ //if verb { fmt.Printf("%4d %8d ",fstat.Blksize,fstat.Blocks) } // fmt.Printf("%d\t",fstat.Blocks/2) } //if finfo.IsDir() if (fstat.Mode & S_IFMT) == S_IFDIR { fsum.Dirs += 1 } //if (finfo.Mode() & os.ModeSymlink) != 0 if (fstat.Mode & S_IFMT) == S_IFLNK { //if verb { fmt.Printf("symlink(%v,%s)\n",fstat.Mode,finfo.Name()) } //{ fmt.Printf("symlink(%o,%s)\n",fstat.Mode,finfo.Name()) } fsum.SymLink += 1 } return fsum } func (gsh*GshContext)xxFindEntv(depth int,total *fileSum,dir string, dstat syscall.Stat_t, ei int, entv []string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) // sort entv /* if isin("-t",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].ModTime().Sub(filev[j].ModTime()) }) } */ /* if isin("-u",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].AccTime().Sub(filev[j].AccTime()) }) } if isin("-U",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].CreatTime().Sub(filev[j].CreatTime()) }) } */ /* if isin("-S",argv){ sort.Slice(filev, func(i,j int) bool { return filev[j].Size() < filev[i].Size() }) } */ for _,filename := range entv { for _,npat := range npatv { match := true if npat == "*" { match = true }else{ match, _ = filepath.Match(npat,filename) } path := dir + DIRSEP + filename if !match { continue } var fstat syscall.Stat_t staterr := syscall.Lstat(path,&fstat) if staterr != nil { if !isin("-w",argv){fmt.Printf("ufind: %v\n",staterr) } continue; } if isin("-du",argv) && (fstat.Mode & S_IFMT) == S_IFDIR { // should not show size of directory in "-du" mode ... }else if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { if isin("-du",argv) { fmt.Printf("%d\t",fstat.Blocks/2) } showFileInfo(path,argv) } if true { // && isin("-du",argv) total = cumFinfo(total,path,staterr,fstat,argv,false) } /* if isin("-wc",argv) { } */ if gsh.lastCheckSum.SumType != 0 { gsh.xCksum(path,argv,&gsh.lastCheckSum); } x := isinX("-grep",argv); // -grep will be convenient like -ls if 0 <= x && x+1 <= len(argv) { // -grep will be convenient like -ls if IsRegFile(path){ found := gsh.xGrep(path,argv[x+1:]) if 0 < found { foundv := gsh.CmdCurrent.FoundFile if len(foundv) < 10 { gsh.CmdCurrent.FoundFile = append(gsh.CmdCurrent.FoundFile,path) } } } } if !isin("-r0",argv) { // -d 0 in du, -depth n in find //total.Depth += 1 if (fstat.Mode & S_IFMT) == S_IFLNK { continue } if dstat.Rdev != fstat.Rdev { fmt.Printf("--I-- don't follow differnet device %v(%v) %v(%v)\n", dir,dstat.Rdev,path,fstat.Rdev) } if (fstat.Mode & S_IFMT) == S_IFDIR { total = gsh.xxFind(depth+1,total,path,npatv,argv) } } } } return total } func (gsh*GshContext)xxFind(depth int,total *fileSum,dir string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) dirfile,oerr := os.OpenFile(dir,os.O_RDONLY,0) if oerr == nil { //fmt.Printf("--I-- %v(%v)[%d]\n",dir,dirfile,dirfile.Fd()) defer dirfile.Close() }else{ } prev := *total var dstat syscall.Stat_t staterr := syscall.Lstat(dir,&dstat) // should be flstat if staterr != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",staterr) } return total } //filev,err := ioutil.ReadDir(dir) //_,err := ioutil.ReadDir(dir) // ReadDir() heavy and bad for huge directory /* if err != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",err) } return total } */ if depth == 0 { total = cumFinfo(total,dir,staterr,dstat,argv,true) if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { showFileInfo(dir,argv) } } // it it is not a directory, just scan it and finish for ei := 0; ; ei++ { entv,rderr := dirfile.Readdirnames(8*1024) if len(entv) == 0 || rderr != nil { //if rderr != nil { fmt.Printf("[%d] len=%d (%v)\n",ei,len(entv),rderr) } break } if 0 < ei { fmt.Printf("--I-- xxFind[%d] %d large-dir: %s\n",ei,len(entv),dir) } total = gsh.xxFindEntv(depth,total,dir,dstat,ei,entv,npatv,argv) } if isin("-du",argv) { // if in "du" mode fmt.Printf("%d\t%s\n",(total.Blocks-prev.Blocks)/2,dir) } return total } // {ufind|fu|ls} [Files] [// Names] [-- Expressions] // Files is "." by default // Names is "*" by default // Expressions is "-print" by default for "ufind", or -du for "fu" command func (gsh*GshContext)xFind(argv[]string){ if 0 < len(argv) && strBegins(argv[0],"?"){ showFound(gsh,argv) return } if isin("-cksum",argv) || isin("-sum",argv) { gsh.lastCheckSum = CheckSum{} if isin("-sum",argv) && isin("-add",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 }else if isin("-sum",argv) && isin("-size",argv) { gsh.lastCheckSum.SumType |= SUM_SIZE }else if isin("-sum",argv) && isin("-bsd",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_BSD }else if isin("-sum",argv) && isin("-sysv",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_SYSV }else if isin("-sum",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 } if isin("-unix",argv) { gsh.lastCheckSum.SumType |= SUM_UNIXFILE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32UNIX) } if isin("-ieee",argv){ gsh.lastCheckSum.SumType |= SUM_CRCIEEE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32IEEE) } gsh.lastCheckSum.RusgAtStart = Getrusagev() } var total = fileSum{} npats := []string{} for _,v := range argv { if 0 < len(v) && v[0] != '-' { npats = append(npats,v) } if v == "//" { break } if v == "--" { break } if v == "-grep" { break } if v == "-ls" { break } } if len(npats) == 0 { npats = []string{"*"} } cwd := "." // if to be fullpath ::: cwd, _ := os.Getwd() if len(npats) == 0 { npats = []string{"*"} } fusage := gsh.xxFind(0,&total,cwd,npats,argv) if gsh.lastCheckSum.SumType != 0 { var sumi uint64 = 0 sum := &gsh.lastCheckSum if (sum.SumType & SUM_SIZE) != 0 { sumi = uint64(sum.Size) } if (sum.SumType & SUM_SUM64) != 0 { sumi = sum.Sum64 } if (sum.SumType & SUM_SUM16_SYSV) != 0 { s := uint32(sum.Sum16) r := (s & 0xFFFF) + ((s & 0xFFFFFFFF) >> 16) s = (r & 0xFFFF) + (r >> 16) sum.Crc32Val = uint32(s) sumi = uint64(s) } if (sum.SumType & SUM_SUM16_BSD) != 0 { sum.Crc32Val = uint32(sum.Sum16) sumi = uint64(sum.Sum16) } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32end(sum.Crc32Val,uint64(sum.Size)) sumi = uint64(byteCRC32end(sum.Crc32Val,uint64(sum.Size))) } if 1 < sum.Files { fmt.Printf("%v %v // %v / %v files, %v/file\r\n", sumi,sum.Size, abssize(sum.Size),sum.Files, abssize(sum.Size/sum.Files)) }else{ fmt.Printf("%v %v %v\n", sumi,sum.Size,npats[0]) } } if !isin("-grep",argv) { showFusage("total",fusage) } if !isin("-s",argv){ hits := len(gsh.CmdCurrent.FoundFile) if 0 < hits { fmt.Printf("--I-- %d files hits // can be refered with !%df\n", hits,len(gsh.CommandHistory)) } } if gsh.lastCheckSum.SumType != 0 { if isin("-ru",argv) { sum := &gsh.lastCheckSum sum.Done = time.Now() gsh.lastCheckSum.RusgAtEnd = Getrusagev() elps := sum.Done.Sub(sum.Start) fmt.Printf("--cksum-size: %v (%v) / %v files, %v/file\r\n", sum.Size,abssize(sum.Size),sum.Files,abssize(sum.Size/sum.Files)) nanos := int64(elps) fmt.Printf("--cksum-time: %v/total, %v/file, %.1f files/s, %v\r\n", abbtime(nanos), abbtime(nanos/sum.Files), (float64(sum.Files)*1000000000.0)/float64(nanos), abbspeed(sum.Size,nanos)) diff := RusageSubv(sum.RusgAtEnd,sum.RusgAtStart) fmt.Printf("--cksum-rusg: %v\n",sRusagef("",argv,diff)) } } return } func showFiles(files[]string){ sp := "" for i,file := range files { if 0 < i { sp = " " } else { sp = "" } fmt.Printf(sp+"%s",escapeWhiteSP(file)) } } func showFound(gshCtx *GshContext, argv[]string){ for i,v := range gshCtx.CommandHistory { if 0 < len(v.FoundFile) { fmt.Printf("!%d (%d) ",i,len(v.FoundFile)) if isin("-ls",argv){ fmt.Printf("\n") for _,file := range v.FoundFile { fmt.Printf("") //sub number? showFileInfo(file,argv) } }else{ showFiles(v.FoundFile) fmt.Printf("\n") } } } } func showMatchFile(filev []os.FileInfo, npat,dir string, argv[]string)(string,bool){ fname := "" found := false for _,v := range filev { match, _ := filepath.Match(npat,(v.Name())) if match { fname = v.Name() found = true //fmt.Printf("[%d] %s\n",i,v.Name()) showIfExecutable(fname,dir,argv) } } return fname,found } func showIfExecutable(name,dir string,argv[]string)(ffullpath string,ffound bool){ var fullpath string if strBegins(name,DIRSEP){ fullpath = name }else{ fullpath = dir + DIRSEP + name } fi, err := os.Stat(fullpath) if err != nil { fullpath = dir + DIRSEP + name + ".go" fi, err = os.Stat(fullpath) } if err == nil { fm := fi.Mode() if fm.IsRegular() { // R_OK=4, W_OK=2, X_OK=1, F_OK=0 if syscall.Access(fullpath,5) == nil { ffullpath = fullpath ffound = true if ! isin("-s", argv) { showFileInfo(fullpath,argv) } } } } return ffullpath, ffound } func which(list string, argv []string) (fullpathv []string, itis bool){ if len(argv) <= 1 { fmt.Printf("Usage: which comand [-s] [-a] [-ls]\n") return []string{""}, false } path := argv[1] if strBegins(path,"/") { // should check if excecutable? _,exOK := showIfExecutable(path,"/",argv) fmt.Printf("--D-- %v exOK=%v\n",path,exOK) return []string{path},exOK } pathenv, efound := os.LookupEnv(list) if ! efound { fmt.Printf("--E-- which: no \"%s\" environment\n",list) return []string{""}, false } showall := isin("-a",argv) || 0 <= strings.Index(path,"*") dirv := strings.Split(pathenv,PATHSEP) ffound := false ffullpath := path for _, dir := range dirv { if 0 <= strings.Index(path,"*") { // by wild-card list,_ := ioutil.ReadDir(dir) ffullpath, ffound = showMatchFile(list,path,dir,argv) }else{ ffullpath, ffound = showIfExecutable(path,dir,argv) } //if ffound && !isin("-a", argv) { if ffound && !showall { break; } } return []string{ffullpath}, ffound } func stripLeadingWSParg(argv[]string)([]string){ for ; 0 < len(argv); { if len(argv[0]) == 0 { argv = argv[1:] }else{ break } } return argv } func xEval(argv []string, nlend bool){ argv = stripLeadingWSParg(argv) if len(argv) == 0 { fmt.Printf("eval [%%format] [Go-expression]\n") return } pfmt := "%v" if argv[0][0] == '%' { pfmt = argv[0] argv = argv[1:] } if len(argv) == 0 { return } gocode := strings.Join(argv," "); //fmt.Printf("eval [%v] [%v]\n",pfmt,gocode) fset := token.NewFileSet() rval, _ := types.Eval(fset,nil,token.NoPos,gocode) fmt.Printf(pfmt,rval.Value) if nlend { fmt.Printf("\n") } } func getval(name string) (found bool, val int) { /* should expand the name here */ if name == "gsh.pid" { return true, os.Getpid() }else if name == "gsh.ppid" { return true, os.Getppid() } return false, 0 } func echo(argv []string, nlend bool){ for ai := 1; ai < len(argv); ai++ { if 1 < ai { fmt.Printf(" "); } arg := argv[ai] found, val := getval(arg) if found { fmt.Printf("%d",val) }else{ fmt.Printf("%s",arg) } } if nlend { fmt.Printf("\n"); } } func resfile() string { return "gsh.tmp" } //var resF *File func resmap() { //_ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, os.ModeAppend) // https://developpaper.com/solution-to-golang-bad-file-descriptor-problem/ _ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, 0600) if err != nil { fmt.Printf("refF could not open: %s\n",err) }else{ fmt.Printf("refF opened\n") } } // @@2020-0821 func gshScanArg(str string,strip int)(argv []string){ var si = 0 var sb = 0 var inBracket = 0 var arg1 = make([]byte,LINESIZE) var ax = 0 debug := false for ; si < len(str); si++ { if str[si] != ' ' { break } } sb = si for ; si < len(str); si++ { if sb <= si { if debug { fmt.Printf("--Da- +%d %2d-%2d %s ... %s\n", inBracket,sb,si,arg1[0:ax],str[si:]) } } ch := str[si] if ch == '{' { inBracket += 1 if 0 < strip && inBracket <= strip { //fmt.Printf("stripLEV %d <= %d?\n",inBracket,strip) continue } } if 0 < inBracket { if ch == '}' { inBracket -= 1 if 0 < strip && inBracket < strip { //fmt.Printf("stripLEV %d < %d?\n",inBracket,strip) continue } } arg1[ax] = ch ax += 1 continue } if str[si] == ' ' { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,str[sb:si],string(str[si:])) } sb = si+1 ax = 0 continue } arg1[ax] = ch ax += 1 } if sb < si { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,string(arg1[0:ax]),string(str[si:])) } } if debug { fmt.Printf("--Da- %d [%s] => [%d]%v\n",strip,str,len(argv),argv) } return argv } // should get stderr (into tmpfile ?) and return func (gsh*GshContext)Popen(name,mode string)(pin*os.File,pout*os.File,err bool){ var pv = []int{-1,-1} syscall.Pipe(pv) xarg := gshScanArg(name,1) name = strings.Join(xarg," ") pin = os.NewFile(uintptr(pv[0]),"StdoutOf-{"+name+"}") pout = os.NewFile(uintptr(pv[1]),"StdinOf-{"+name+"}") fdix := 0 dir := "?" if mode == "r" { dir = "<" fdix = 1 // read from the stdout of the process }else{ dir = ">" fdix = 0 // write to the stdin of the process } gshPA := gsh.gshPA savfd := gshPA.Files[fdix] var fd uintptr = 0 if mode == "r" { fd = pout.Fd() gshPA.Files[fdix] = pout.Fd() }else{ fd = pin.Fd() gshPA.Files[fdix] = pin.Fd() } // should do this by Goroutine? if false { fmt.Printf("--Ip- Opened fd[%v] %s %v\n",fd,dir,name) fmt.Printf("--RED1 [%d,%d,%d]->[%d,%d,%d]\n", os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd(), pin.Fd(),pout.Fd(),pout.Fd()) } savi := os.Stdin savo := os.Stdout save := os.Stderr os.Stdin = pin os.Stdout = pout os.Stderr = pout gsh.BackGround = true gsh.gshelllh(name) gsh.BackGround = false os.Stdin = savi os.Stdout = savo os.Stderr = save gshPA.Files[fdix] = savfd return pin,pout,false } // External commands func (gsh*GshContext)excommand(exec bool, argv []string) (notf bool,exit bool) { if gsh.CmdTrace { fmt.Printf("--I-- excommand[%v](%v)\n",exec,argv) } gshPA := gsh.gshPA fullpathv, itis := which("PATH",[]string{"which",argv[0],"-s"}) if itis == false { return true,false } fullpath := fullpathv[0] argv = unescapeWhiteSPV(argv) if 0 < strings.Index(fullpath,".go") { nargv := argv // []string{} gofullpathv, itis := which("PATH",[]string{"which","go","-s"}) if itis == false { fmt.Printf("--F-- Go not found\n") return false,true } gofullpath := gofullpathv[0] nargv = []string{ gofullpath, "run", fullpath } fmt.Printf("--I-- %s {%s %s %s}\n",gofullpath, nargv[0],nargv[1],nargv[2]) if exec { syscall.Exec(gofullpath,nargv,os.Environ()) }else{ pid, _ := syscall.ForkExec(gofullpath,nargv,&gshPA) if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),nargv) gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) }else{ rusage := syscall.Rusage {} syscall.Wait4(pid,nil,0,&rusage) gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage } } }else{ if exec { syscall.Exec(fullpath,argv,os.Environ()) }else{ pid, _ := syscall.ForkExec(fullpath,argv,&gshPA) //fmt.Printf("[%d]\n",pid); // '&' to be background if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),argv) gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) }else{ rusage := syscall.Rusage {} syscall.Wait4(pid,nil,0,&rusage); gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage } } } return false,false } // Builtin Commands func (gshCtx *GshContext) sleep(argv []string) { if len(argv) < 2 { fmt.Printf("Sleep 100ms, 100us, 100ns, ...\n") return } duration := argv[1]; d, err := time.ParseDuration(duration) if err != nil { d, err = time.ParseDuration(duration+"s") if err != nil { fmt.Printf("duration ? %s (%s)\n",duration,err) return } } //fmt.Printf("Sleep %v\n",duration) time.Sleep(d) if 0 < len(argv[2:]) { gshCtx.gshellv(argv[2:]) } } func (gshCtx *GshContext)repeat(argv []string) { if len(argv) < 2 { return } start0 := time.Now() for ri,_ := strconv.Atoi(argv[1]); 0 < ri; ri-- { if 0 < len(argv[2:]) { //start := time.Now() gshCtx.gshellv(argv[2:]) end := time.Now() elps := end.Sub(start0); if( 1000000000 < elps ){ fmt.Printf("(repeat#%d %v)\n",ri,elps); } } } } func (gshCtx *GshContext)gen(argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: %s N\n",argv[0]) return } // should br repeated by "repeat" command count, _ := strconv.Atoi(argv[1]) fd := gshPA.Files[1] // Stdout file := os.NewFile(fd,"internalStdOut") fmt.Printf("--I-- Gen. Count=%d to [%d]\n",count,file.Fd()) //buf := []byte{} outdata := "0123 5678 0123 5678 0123 5678 0123 5678\r" for gi := 0; gi < count; gi++ { file.WriteString(outdata) } //file.WriteString("\n") fmt.Printf("\n(%d B)\n",count*len(outdata)); //file.Close() } // Remote Execution // 2020-0820 func Elapsed(from time.Time)(string){ elps := time.Now().Sub(from) if 1000000000 < elps { return fmt.Sprintf("[%5d.%02ds]",elps/1000000000,(elps%1000000000)/10000000) }else if 1000000 < elps { return fmt.Sprintf("[%3d.%03dms]",elps/1000000,(elps%1000000)/1000) }else{ return fmt.Sprintf("[%3d.%03dus]",elps/1000,(elps%1000)) } } func abbtime(nanos int64)(string){ if 1000000000 < nanos { return fmt.Sprintf("%d.%02ds",nanos/1000000000,(nanos%1000000000)/10000000) }else if 1000000 < nanos { return fmt.Sprintf("%d.%03dms",nanos/1000000,(nanos%1000000)/1000) }else{ return fmt.Sprintf("%d.%03dus",nanos/1000,(nanos%1000)) } } func abssize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%.3fKiB",fsize/1024) } } func absize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%8.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%8.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%8.3fKiB",fsize/1024) } } func abbspeed(totalB int64,ns int64)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGB/s",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMB/s",MBs) }else{ return fmt.Sprintf("%6.3fKB/s",MBs*1000) } } func abspeed(totalB int64,ns time.Duration)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGBps",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMBps",MBs) }else{ return fmt.Sprintf("%6.3fKBps",MBs*1000) } } func fileRelay(what string,in*os.File,out*os.File,size int64,bsiz int)(wcount int64){ Start := time.Now() buff := make([]byte,bsiz) var total int64 = 0 var rem int64 = size nio := 0 Prev := time.Now() var PrevSize int64 = 0 fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) START\n", what,absize(total),size,nio) for i:= 0; ; i++ { var len = bsiz if int(rem) < len { len = int(rem) } Now := time.Now() Elps := Now.Sub(Prev); if 1000000000 < Now.Sub(Prev) { fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %s\n", what,absize(total),size,nio, abspeed((total-PrevSize),Elps)) Prev = Now; PrevSize = total } rlen := len if in != nil { // should watch the disconnection of out rcc,err := in.Read(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"--En- X: %s read(%v,%v)<%v\n", what,rcc,err,in.Name()) break } rlen = rcc if string(buff[0:10]) == "((SoftEOF " { var ecc int64 = 0 fmt.Sscanf(string(buff),"((SoftEOF %v",&ecc) fmt.Printf(Elapsed(Start)+"--En- X: %s Recv ((SoftEOF %v))/%v\n", what,ecc,total) if ecc == total { break } } } wlen := rlen if out != nil { wcc,err := out.Write(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"-En-- X: %s write(%v,%v)>%v\n", what,wcc,err,out.Name()) break } wlen = wcc } if wlen < rlen { fmt.Printf(Elapsed(Start)+"--En- X: %s incomplete write (%v/%v)\n", what,wlen,rlen) break; } nio += 1 total += int64(rlen) rem -= int64(rlen) if rem <= 0 { break } } Done := time.Now() Elps := float64(Done.Sub(Start))/1000000000 //Seconds TotalMB := float64(total)/1000000 //MB MBps := TotalMB / Elps fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %v %.3fMB/s\n", what,total,size,nio,absize(total),MBps) return total } func tcpPush(clnt *os.File){ // shrink socket buffer and recover usleep(100); } func (gsh*GshContext)RexecServer(argv[]string){ debug := true Start0 := time.Now() Start := Start0 // if local == ":" { local = "0.0.0.0:9999" } local := "0.0.0.0:9999" if 0 < len(argv) { if argv[0] == "-s" { debug = false argv = argv[1:] } } if 0 < len(argv) { argv = argv[1:] } port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("--En- S: Address error: %s (%s)\n",local,err) return } fmt.Printf(Elapsed(Start)+"--In- S: Listening at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Listen error: %s (%s)\n",local,err) return } reqbuf := make([]byte,LINESIZE) res := "" for { fmt.Printf(Elapsed(Start0)+"--In- S: Listening at %s...\n",local); aconn, err := sconn.AcceptTCP() Start = time.Now() if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Accept error: %s (%s)\n",local,err) return } clnt, _ := aconn.File() fd := clnt.Fd() ar := aconn.RemoteAddr() if debug { fmt.Printf(Elapsed(Start0)+"--In- S: Accepted TCP at %s [%d] <- %v\n", local,fd,ar) } res = fmt.Sprintf("220 GShell/%s Server\r\n",VERSION) fmt.Fprintf(clnt,"%s",res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %s",res) } count, err := clnt.Read(reqbuf) if err != nil { fmt.Printf(Elapsed(Start)+"--En- C: (%v %v) %v", count,err,string(reqbuf)) } req := string(reqbuf[:count]) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",string(req)) } reqv := strings.Split(string(req),"\r") cmdv := gshScanArg(reqv[0],0) //cmdv := strings.Split(reqv[0]," ") switch cmdv[0] { case "HELO": res = fmt.Sprintf("250 %v",req) case "GET": // download {remotefile|-zN} [localfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var in *os.File = nil var pseudoEOF = false if 1 < len(cmdv) { fname = cmdv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() in = xin dsize = MaxStreamSize pseudoEOF = true } }else{ xin,err := os.Open(fname) if err != nil { fmt.Printf("--En- GET (%v)\n",err) }else{ defer xin.Close() in = xin fi,_ := xin.Stat() dsize = fi.Size() } } } //fmt.Printf(Elapsed(Start)+"--In- GET %v:%v\n",dsize,bsize) res = fmt.Sprintf("200 %v\r\n",dsize) fmt.Fprintf(clnt,"%v",res) tcpPush(clnt); // should be separated as line in receiver fmt.Printf(Elapsed(Start)+"--In- S: %v",res) wcount := fileRelay("SendGET",in,clnt,dsize,bsize) if pseudoEOF { in.Close() // pipe from the command // show end of stream data (its size) by OOB? SoftEOF := fmt.Sprintf("((SoftEOF %v))",wcount) fmt.Printf(Elapsed(Start)+"--In- S: Send %v\n",SoftEOF) tcpPush(clnt); // to let SoftEOF data apper at the top of recevied data fmt.Fprintf(clnt,"%v\r\n",SoftEOF) tcpPush(clnt); // to let SoftEOF alone in a packet (separate with 200 OK) // with client generated random? //fmt.Printf("--In- L: close %v (%v)\n",in.Fd(),in.Name()) } res = fmt.Sprintf("200 GET done\r\n") case "PUT": // upload {srcfile|-zN} [dstfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var out *os.File = nil if 1 < len(cmdv) { // localfile fmt.Sscanf(cmdv[1],"%d",&dsize) } if 2 < len(cmdv) { fname = cmdv[2] if fname == "-" { // nul dev }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) //fmt.Printf("--In- S: open(%v) out(%v) err(%v)\n",fname,xout,err) if err != nil { fmt.Printf("--En- PUT (%v)\n",err) }else{ out = xout } } fmt.Printf(Elapsed(Start)+"--In- L: open(%v,w) %v (%v)\n", fname,local,err) } fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) fmt.Printf(Elapsed(Start)+"--In- S: 200 %v OK\r\n",dsize) fmt.Fprintf(clnt,"200 %v OK\r\n",dsize) fileRelay("RecvPUT",clnt,out,dsize,bsize) res = fmt.Sprintf("200 PUT done\r\n") default: res = fmt.Sprintf("400 What? %v",req) } swcc,serr := clnt.Write([]byte(res)) if serr != nil { fmt.Printf(Elapsed(Start)+"--In- S: (wc=%v er=%v) %v",swcc,serr,res) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",res) } aconn.Close(); clnt.Close(); } sconn.Close(); } func (gsh*GshContext)RexecClient(argv[]string)(int,string){ debug := true Start := time.Now() if len(argv) == 1 { return -1,"EmptyARG" } argv = argv[1:] if argv[0] == "-serv" { gsh.RexecServer(argv[1:]) return 0,"Server" } remote := "0.0.0.0:9999" if argv[0][0] == '@' { remote = argv[0][1:] argv = argv[1:] } if argv[0] == "-s" { debug = false argv = argv[1:] } dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf(Elapsed(Start)+"Address error: %s (%s)\n",remote,err) return -1,"AddressError" } fmt.Printf(Elapsed(Start)+"--In- C: Connecting to %s\n",remote) serv, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf(Elapsed(Start)+"Connection error: %s (%s)\n",remote,err) return -1,"CannotConnect" } if debug { al := serv.LocalAddr() fmt.Printf(Elapsed(Start)+"--In- C: Connected to %v <- %v\n",remote,al) } req := "" res := make([]byte,LINESIZE) count,err := serv.Read(res) if err != nil { fmt.Printf("--En- S: (%3d,%v) %v",count,err,string(res)) } if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res)) } if argv[0] == "GET" { savPA := gsh.gshPA var bsize int = 64*1024 req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) fmt.Printf(Elapsed(Start)+"--In- C: %v",req) fmt.Fprintf(serv,req) count,err = serv.Read(res) if err != nil { }else{ var dsize int64 = 0 var out *os.File = nil var out_tobeclosed *os.File = nil var fname string = "" var rcode int = 0 var pid int = -1 fmt.Sscanf(string(res),"%d %d",&rcode,&dsize) fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) if 3 <= len(argv) { fname = argv[2] if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout out_tobeclosed = xout pid = 0 // should be its pid } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) if err != nil { fmt.Print("--En- %v\n",err) } out = xout //fmt.Printf("--In-- %d > %s\n",out.Fd(),fname) } } in,_ := serv.File() fileRelay("RecvGET",in,out,dsize,bsize) if 0 <= pid { gsh.gshPA = savPA // recovery of Fd(), and more? fmt.Printf(Elapsed(Start)+"--In- L: close Pipe > %v\n",fname) out_tobeclosed.Close() //syscall.Wait4(pid,nil,0,nil) //@@ } } }else if argv[0] == "PUT" { remote, _ := serv.File() var local *os.File = nil var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var ofile string = "-" //fmt.Printf("--I-- Rex %v\n",argv) if 1 < len(argv) { fname := argv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() //in = xin local = xin fmt.Printf("--In- [%d] < Upload output of %v\n", local.Fd(),fname) ofile = "-from."+fname dsize = MaxStreamSize } }else{ xlocal,err := os.Open(fname) if err != nil { fmt.Printf("--En- (%s)\n",err) local = nil }else{ local = xlocal fi,_ := local.Stat() dsize = fi.Size() defer local.Close() //fmt.Printf("--I-- Rex in(%v / %v)\n",ofile,dsize) } ofile = fname fmt.Printf(Elapsed(Start)+"--In- L: open(%v,r)=%v %v (%v)\n", fname,dsize,local,err) } } if 2 < len(argv) && argv[2] != "" { ofile = argv[2] //fmt.Printf("(%d)%v B.ofile=%v\n",len(argv),argv,ofile) } //fmt.Printf(Elapsed(Start)+"--I-- Rex out(%v)\n",ofile) fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) req = fmt.Sprintf("PUT %v %v \r\n",dsize,ofile) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) count,err = serv.Read(res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) } fileRelay("SendPUT",local,remote,dsize,bsize) }else{ req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) //fmt.Printf("--In- sending RexRequest(%v)\n",len(req)) } //fmt.Printf(Elapsed(Start)+"--In- waiting RexResponse...\n") count,err = serv.Read(res) ress := "" if count == 0 { ress = "(nil)\r\n" }else{ ress = string(res[:count]) } if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: (%d,%v) %v",count,err,ress) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",ress) } serv.Close() //conn.Close() var stat string var rcode int fmt.Sscanf(ress,"%d %s",&rcode,&stat) //fmt.Printf("--D-- Client: %v (%v)",rcode,stat) return rcode,ress } // Remote Shell // gcp file [...] { [host]:[port:][dir] | dir } // -p | -no-p func (gsh*GshContext)FileCopy(argv[]string){ var host = "" var port = "" var upload = false var download = false var xargv = []string{"rex-gcp"} var srcv = []string{} var dstv = []string{} argv = argv[1:] for _,v := range argv { /* if v[0] == '-' { // might be a pseudo file (generated date) continue } */ obj := strings.Split(v,":") //fmt.Printf("%d %v %v\n",len(obj),v,obj) if 1 < len(obj) { host = obj[0] file := "" if 0 < len(host) { gsh.LastServer.host = host }else{ host = gsh.LastServer.host port = gsh.LastServer.port } if 2 < len(obj) { port = obj[1] if 0 < len(port) { gsh.LastServer.port = port }else{ port = gsh.LastServer.port } file = obj[2] }else{ file = obj[1] } if len(srcv) == 0 { download = true srcv = append(srcv,file) continue } upload = true dstv = append(dstv,file) continue } /* idx := strings.Index(v,":") if 0 <= idx { remote = v[0:idx] if len(srcv) == 0 { download = true srcv = append(srcv,v[idx+1:]) continue } upload = true dstv = append(dstv,v[idx+1:]) continue } */ if download { dstv = append(dstv,v) }else{ srcv = append(srcv,v) } } hostport := "@" + host + ":" + port if upload { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"PUT") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v // %v\n",hostport,dstv,srcv,xargv) fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v\n",hostport,dstv,srcv) gsh.RexecClient(xargv) }else if download { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"GET") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v // %v\n",hostport,srcv,dstv,xargv) fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v\n",hostport,srcv,dstv) gsh.RexecClient(xargv) }else{ } } // target func (gsh*GshContext)Trelpath(rloc string)(string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(rloc) twd, _ := os.Getwd() os.Chdir(cwd) tpath := twd + "/" + rloc return tpath } // join to rmote GShell - [user@]host[:port] or cd host:[port]:path func (gsh*GshContext)Rjoin(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- current server = %v\n",gsh.RSERV) return } serv := argv[1] servv := strings.Split(serv,":") if 1 <= len(servv) { if servv[0] == "lo" { servv[0] = "localhost" } } switch len(servv) { case 1: //if strings.Index(serv,":") < 0 { serv = servv[0] + ":" + fmt.Sprintf("%d",GSH_PORT) //} case 2: // host:port serv = strings.Join(servv,":") } xargv := []string{"rex-join","@"+serv,"HELO"} rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Joined (%v) %v\n",rcode,stat) gsh.RSERV = serv }else{ fmt.Printf("--I-- NG, could not joined (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rexec(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- rexec command [ | {file || {command} ]\n",gsh.RSERV) return } /* nargv := gshScanArg(strings.Join(argv," "),0) fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) if nargv[1][0] != '{' { nargv[1] = "{" + nargv[1] + "}" fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) } argv = nargv */ nargv := []string{} nargv = append(nargv,"{"+strings.Join(argv[1:]," ")+"}") fmt.Printf("--D-- nargc=%d %v\n",len(nargv),nargv) argv = nargv xargv := []string{"rex-exec","@"+gsh.RSERV,"GET"} xargv = append(xargv,argv...) xargv = append(xargv,"/dev/tty") rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Rexec (%v) %v\n",rcode,stat) }else{ fmt.Printf("--I-- NG Rexec (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rchdir(argv[]string){ if len(argv) <= 1 { return } cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(argv[1]) twd, _ := os.Getwd() gsh.RWD = twd fmt.Printf("--I-- JWD=%v\n",twd) os.Chdir(cwd) } func (gsh*GshContext)Rpwd(argv[]string){ fmt.Printf("%v\n",gsh.RWD) } func (gsh*GshContext)Rls(argv[]string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) argv[0] = "-ls" gsh.xFind(argv) os.Chdir(cwd) } func (gsh*GshContext)Rput(argv[]string){ var local string = "" var remote string = "" if 1 < len(argv) { local = argv[1] remote = local // base name } if 2 < len(argv) { remote = argv[2] } fmt.Printf("--I-- jput from=%v to=%v\n",local,gsh.Trelpath(remote)) } func (gsh*GshContext)Rget(argv[]string){ var remote string = "" var local string = "" if 1 < len(argv) { remote = argv[1] local = remote // base name } if 2 < len(argv) { local = argv[2] } fmt.Printf("--I-- jget from=%v to=%v\n",gsh.Trelpath(remote),local) } // network // -s, -si, -so // bi-directional, source, sync (maybe socket) func (gshCtx*GshContext)sconnect(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -s [host]:[port[.udp]]\n") return } remote := argv[1] if remote == ":" { remote = "0.0.0.0:9999" } if inTCP { // TCP dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } conn, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); fd := file.Fd() fmt.Printf("Socket: connected to %s, socket[%d]\n",remote,fd) savfd := gshPA.Files[1] gshPA.Files[1] = fd; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() }else{ //dport, err := net.ResolveUDPAddr("udp4",remote); dport, err := net.ResolveUDPAddr("udp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } //conn, err := net.DialUDP("udp4",nil,dport) conn, err := net.DialUDP("udp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); fd := file.Fd() ar := conn.RemoteAddr() //al := conn.LocalAddr() fmt.Printf("Socket: connected to %s [%s], socket[%d]\n", remote,ar.String(),fd) savfd := gshPA.Files[1] gshPA.Files[1] = fd; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() } } func (gshCtx*GshContext)saccept(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -ac [host]:[port[.udp]]\n") return } local := argv[1] if local == ":" { local = "0.0.0.0:9999" } if inTCP { // TCP port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } //fmt.Printf("Listen at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } //fmt.Printf("Accepting at %s...\n",local); aconn, err := sconn.AcceptTCP() if err != nil { fmt.Printf("Accept error: %s (%s)\n",local,err) return } file, _ := aconn.File() fd := file.Fd() fmt.Printf("Accepted TCP at %s [%d]\n",local,fd) savfd := gshPA.Files[0] gshPA.Files[0] = fd; gshCtx.gshellv(argv[2:]) gshPA.Files[0] = savfd sconn.Close(); aconn.Close(); file.Close(); }else{ //port, err := net.ResolveUDPAddr("udp4",local); port, err := net.ResolveUDPAddr("udp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } fmt.Printf("Listen UDP at %s...\n",local); //uconn, err := net.ListenUDP("udp4", port) uconn, err := net.ListenUDP("udp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } file, _ := uconn.File() fd := file.Fd() ar := uconn.RemoteAddr() remote := "" if ar != nil { remote = ar.String() } if remote == "" { remote = "?" } // not yet received //fmt.Printf("Accepted at %s [%d] <- %s\n",local,fd,"") savfd := gshPA.Files[0] gshPA.Files[0] = fd; savenv := gshPA.Env gshPA.Env = append(savenv, "REMOTE_HOST="+remote) gshCtx.gshellv(argv[2:]) gshPA.Env = savenv gshPA.Files[0] = savfd uconn.Close(); file.Close(); } } // empty line command func (gshCtx*GshContext)xPwd(argv[]string){ // execute context command, pwd + date // context notation, representation scheme, to be resumed at re-login cwd, _ := os.Getwd() switch { case isin("-a",argv): gshCtx.ShowChdirHistory(argv) case isin("-ls",argv): showFileInfo(cwd,argv) default: fmt.Printf("%s\n",cwd) case isin("-v",argv): // obsolete emtpy command t := time.Now() date := t.Format(time.UnixDate) exe, _ := os.Executable() host, _ := os.Hostname() fmt.Printf("{PWD=\"%s\"",cwd) fmt.Printf(" HOST=\"%s\"",host) fmt.Printf(" DATE=\"%s\"",date) fmt.Printf(" TIME=\"%s\"",t.String()) fmt.Printf(" PID=\"%d\"",os.Getpid()) fmt.Printf(" EXE=\"%s\"",exe) fmt.Printf("}\n") } } // History // these should be browsed and edited by HTTP browser // show the time of command with -t and direcotry with -ls // openfile-history, sort by -a -m -c // sort by elapsed time by -t -s // search by "more" like interface // edit history // sort history, and wc or uniq // CPU and other resource consumptions // limit showing range (by time or so) // export / import history func (gshCtx *GshContext)xHistory(argv []string){ atWorkDirX := -1 if 1 < len(argv) && strBegins(argv[1],"@") { atWorkDirX,_ = strconv.Atoi(argv[1][1:]) } //fmt.Printf("--D-- showHistory(%v)\n",argv) for i, v := range gshCtx.CommandHistory { // exclude commands not to be listed by default // internal commands may be suppressed by default if v.CmdLine == "" && !isin("-a",argv) { continue; } if 0 <= atWorkDirX { if v.WorkDirX != atWorkDirX { continue } } if !isin("-n",argv){ // like "fc" fmt.Printf("!%-2d ",i) } if isin("-v",argv){ fmt.Println(v) // should be with it date }else{ if isin("-l",argv) || isin("-l0",argv) { elps := v.EndAt.Sub(v.StartAt); start := v.StartAt.Format(time.Stamp) fmt.Printf("@%d ",v.WorkDirX) fmt.Printf("[%v] %11v/t ",start,elps) } if isin("-l",argv) && !isin("-l0",argv){ fmt.Printf("%v",Rusagef("%t %u\t// %s",argv,v.Rusagev)) } if isin("-at",argv) { // isin("-ls",argv){ dhi := v.WorkDirX // workdir history index fmt.Printf("@%d %s\t",dhi,v.WorkDir) // show the FileInfo of the output command?? } fmt.Printf("%s",v.CmdLine) fmt.Printf("\n") } } } // !n - history index func searchHistory(gshCtx GshContext, gline string) (string, bool, bool){ if gline[0] == '!' { hix, err := strconv.Atoi(gline[1:]) if err != nil { fmt.Printf("--E-- (%s : range)\n",hix) return "", false, true } if hix < 0 || len(gshCtx.CommandHistory) <= hix { fmt.Printf("--E-- (%d : out of range)\n",hix) return "", false, true } return gshCtx.CommandHistory[hix].CmdLine, false, false } // search //for i, v := range gshCtx.CommandHistory { //} return gline, false, false } func (gsh*GshContext)cmdStringInHistory(hix int)(cmd string, ok bool){ if 0 <= hix && hix < len(gsh.CommandHistory) { return gsh.CommandHistory[hix].CmdLine,true } return "",false } // temporary adding to PATH environment // cd name -lib for LD_LIBRARY_PATH // chdir with directory history (date + full-path) // -s for sort option (by visit date or so) func (gsh*GshContext)ShowChdirHistory1(i int,v GChdirHistory, argv []string){ fmt.Printf("!%-2d ",v.CmdIndex) // the first command at this WorkDir fmt.Printf("@%d ",i) fmt.Printf("[%v] ",v.MovedAt.Format(time.Stamp)) showFileInfo(v.Dir,argv) } func (gsh*GshContext)ShowChdirHistory(argv []string){ for i, v := range gsh.ChdirHistory { gsh.ShowChdirHistory1(i,v,argv) } } func skipOpts(argv[]string)(int){ for i,v := range argv { if strBegins(v,"-") { }else{ return i } } return -1 } func (gshCtx*GshContext)xChdir(argv []string){ cdhist := gshCtx.ChdirHistory if isin("?",argv ) || isin("-t",argv) || isin("-a",argv) { gshCtx.ShowChdirHistory(argv) return } pwd, _ := os.Getwd() dir := "" if len(argv) <= 1 { dir = toFullpath("~") }else{ i := skipOpts(argv[1:]) if i < 0 { dir = toFullpath("~") }else{ dir = argv[1+i] } } if strBegins(dir,"@") { if dir == "@0" { // obsolete dir = gshCtx.StartDir }else if dir == "@!" { index := len(cdhist) - 1 if 0 < index { index -= 1 } dir = cdhist[index].Dir }else{ index, err := strconv.Atoi(dir[1:]) if err != nil { fmt.Printf("--E-- xChdir(%v)\n",err) dir = "?" }else if len(gshCtx.ChdirHistory) <= index { fmt.Printf("--E-- xChdir(history range error)\n") dir = "?" }else{ dir = cdhist[index].Dir } } } if dir != "?" { err := os.Chdir(dir) if err != nil { fmt.Printf("--E-- xChdir(%s)(%v)\n",argv[1],err) }else{ cwd, _ := os.Getwd() if cwd != pwd { hist1 := GChdirHistory { } hist1.Dir = cwd hist1.MovedAt = time.Now() hist1.CmdIndex = len(gshCtx.CommandHistory)+1 gshCtx.ChdirHistory = append(cdhist,hist1) if !isin("-s",argv){ //cwd, _ := os.Getwd() //fmt.Printf("%s\n",cwd) ix := len(gshCtx.ChdirHistory)-1 gshCtx.ShowChdirHistory1(ix,hist1,argv) } } } } if isin("-ls",argv){ cwd, _ := os.Getwd() showFileInfo(cwd,argv); } } func TimeValSub(tv1 *syscall.Timeval, tv2 *syscall.Timeval){ *tv1 = syscall.NsecToTimeval(tv1.Nano() - tv2.Nano()) } func RusageSubv(ru1, ru2 [2]syscall.Rusage)([2]syscall.Rusage){ TimeValSub(&ru1[0].Utime,&ru2[0].Utime) TimeValSub(&ru1[0].Stime,&ru2[0].Stime) TimeValSub(&ru1[1].Utime,&ru2[1].Utime) TimeValSub(&ru1[1].Stime,&ru2[1].Stime) return ru1 } func TimeValAdd(tv1 syscall.Timeval, tv2 syscall.Timeval)(syscall.Timeval){ tvs := syscall.NsecToTimeval(tv1.Nano() + tv2.Nano()) return tvs } /* func RusageAddv(ru1, ru2 [2]syscall.Rusage)([2]syscall.Rusage){ TimeValAdd(ru1[0].Utime,ru2[0].Utime) TimeValAdd(ru1[0].Stime,ru2[0].Stime) TimeValAdd(ru1[1].Utime,ru2[1].Utime) TimeValAdd(ru1[1].Stime,ru2[1].Stime) return ru1 } */ // Resource Usage func sRusagef(fmtspec string, argv []string, ru [2]syscall.Rusage)(string){ // ru[0] self , ru[1] children ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) uu := (ut.Sec*1000000 + int64(ut.Usec)) * 1000 su := (st.Sec*1000000 + int64(st.Usec)) * 1000 tu := uu + su ret := fmt.Sprintf("%v/sum",abbtime(tu)) ret += fmt.Sprintf(", %v/usr",abbtime(uu)) ret += fmt.Sprintf(", %v/sys",abbtime(su)) return ret } func Rusagef(fmtspec string, argv []string, ru [2]syscall.Rusage)(string){ ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) fmt.Printf("%d.%06ds/u ",ut.Sec,ut.Usec) //ru[1].Utime.Sec,ru[1].Utime.Usec) fmt.Printf("%d.%06ds/s ",st.Sec,st.Usec) //ru[1].Stime.Sec,ru[1].Stime.Usec) return "" } func Getrusagev()([2]syscall.Rusage){ var ruv = [2]syscall.Rusage{} syscall.Getrusage(syscall.RUSAGE_SELF,&ruv[0]) syscall.Getrusage(syscall.RUSAGE_CHILDREN,&ruv[1]) return ruv } func showRusage(what string,argv []string, ru *syscall.Rusage){ fmt.Printf("%s: ",what); fmt.Printf("Usr=%d.%06ds",ru.Utime.Sec,ru.Utime.Usec) fmt.Printf(" Sys=%d.%06ds",ru.Stime.Sec,ru.Stime.Usec) fmt.Printf(" Rss=%vB",ru.Maxrss) if isin("-l",argv) { fmt.Printf(" MinFlt=%v",ru.Minflt) fmt.Printf(" MajFlt=%v",ru.Majflt) fmt.Printf(" IxRSS=%vB",ru.Ixrss) fmt.Printf(" IdRSS=%vB",ru.Idrss) fmt.Printf(" Nswap=%vB",ru.Nswap) fmt.Printf(" Read=%v",ru.Inblock) fmt.Printf(" Write=%v",ru.Oublock) } fmt.Printf(" Snd=%v",ru.Msgsnd) fmt.Printf(" Rcv=%v",ru.Msgrcv) //if isin("-l",argv) { fmt.Printf(" Sig=%v",ru.Nsignals) //} fmt.Printf("\n"); } func (gshCtx *GshContext)xTime(argv[]string)(bool){ if 2 <= len(argv){ gshCtx.LastRusage = syscall.Rusage{} rusagev1 := Getrusagev() fin := gshCtx.gshellv(argv[1:]) rusagev2 := Getrusagev() showRusage(argv[1],argv,&gshCtx.LastRusage) rusagev := RusageSubv(rusagev2,rusagev1) showRusage("self",argv,&rusagev[0]) showRusage("chld",argv,&rusagev[1]) return fin }else{ rusage:= syscall.Rusage {} syscall.Getrusage(syscall.RUSAGE_SELF,&rusage) showRusage("self",argv, &rusage) syscall.Getrusage(syscall.RUSAGE_CHILDREN,&rusage) showRusage("chld",argv, &rusage) return false } } func (gshCtx *GshContext)xJobs(argv[]string){ fmt.Printf("%d Jobs\n",len(gshCtx.BackGroundJobs)) for ji, pid := range gshCtx.BackGroundJobs { //wstat := syscall.WaitStatus {0} rusage := syscall.Rusage {} //wpid, err := syscall.Wait4(pid,&wstat,syscall.WNOHANG,&rusage); wpid, err := syscall.Wait4(pid,nil,syscall.WNOHANG,&rusage); if err != nil { fmt.Printf("--E-- %%%d [%d] (%v)\n",ji,pid,err) }else{ fmt.Printf("%%%d[%d](%d)\n",ji,pid,wpid) showRusage("chld",argv,&rusage) } } } func (gsh*GshContext)inBackground(argv[]string)(bool){ if gsh.CmdTrace { fmt.Printf("--I-- inBackground(%v)\n",argv) } gsh.BackGround = true // set background option xfin := false xfin = gsh.gshellv(argv) gsh.BackGround = false return xfin } // -o file without command means just opening it and refer by #N // should be listed by "files" comnmand func (gshCtx*GshContext)xOpen(argv[]string){ var pv = []int{-1,-1} err := syscall.Pipe(pv) fmt.Printf("--I-- pipe()=[#%d,#%d](%v)\n",pv[0],pv[1],err) } func (gshCtx*GshContext)fromPipe(argv[]string){ } func (gshCtx*GshContext)xClose(argv[]string){ } // redirect func (gshCtx*GshContext)redirect(argv[]string)(bool){ if len(argv) < 2 { return false } cmd := argv[0] fname := argv[1] var file *os.File = nil fdix := 0 mode := os.O_RDONLY switch { case cmd == "-i" || cmd == "<": fdix = 0 mode = os.O_RDONLY case cmd == "-o" || cmd == ">": fdix = 1 mode = os.O_RDWR | os.O_CREATE case cmd == "-a" || cmd == ">>": fdix = 1 mode = os.O_RDWR | os.O_CREATE | os.O_APPEND } if fname[0] == '#' { fd, err := strconv.Atoi(fname[1:]) if err != nil { fmt.Printf("--E-- (%v)\n",err) return false } file = os.NewFile(uintptr(fd),"MaybePipe") }else{ xfile, err := os.OpenFile(argv[1], mode, 0600) if err != nil { fmt.Printf("--E-- (%s)\n",err) return false } file = xfile } gshPA := gshCtx.gshPA savfd := gshPA.Files[fdix] gshPA.Files[fdix] = file.Fd() fmt.Printf("--I-- Opened [%d] %s\n",file.Fd(),argv[1]) gshCtx.gshellv(argv[2:]) gshPA.Files[fdix] = savfd return false } //fmt.Fprintf(res, "GShell Status: %q", html.EscapeString(req.URL.Path)) func httpHandler(res http.ResponseWriter, req *http.Request){ path := req.URL.Path fmt.Printf("--I-- Got HTTP Request(%s)\n",path) { gshCtxBuf, _ := setupGshContext() gshCtx := &gshCtxBuf fmt.Printf("--I-- %s\n",path[1:]) gshCtx.tgshelll(path[1:]) } fmt.Fprintf(res, "Hello(^-^)//\n%s\n",path) } func (gshCtx *GshContext) httpServer(argv []string){ http.HandleFunc("/", httpHandler) accport := "localhost:9999" fmt.Printf("--I-- HTTP Server Start at [%s]\n",accport) http.ListenAndServe(accport,nil) } func (gshCtx *GshContext)xGo(argv[]string){ go gshCtx.gshellv(argv[1:]); } func (gshCtx *GshContext) xPs(argv[]string)(){ } // Plugin // plugin [-ls [names]] to list plugins // Reference: plugin source code func (gshCtx *GshContext) whichPlugin(name string,argv[]string)(pi *PluginInfo){ pi = nil for _,p := range gshCtx.PluginFuncs { if p.Name == name && pi == nil { pi = &p } if !isin("-s",argv){ //fmt.Printf("%v %v ",i,p) if isin("-ls",argv){ showFileInfo(p.Path,argv) }else{ fmt.Printf("%s\n",p.Name) } } } return pi } func (gshCtx *GshContext) xPlugin(argv[]string) (error) { if len(argv) == 0 || argv[0] == "-ls" { gshCtx.whichPlugin("",argv) return nil } name := argv[0] Pin := gshCtx.whichPlugin(name,[]string{"-s"}) if Pin != nil { os.Args = argv // should be recovered? Pin.Addr.(func())() return nil } sofile := toFullpath(argv[0] + ".so") // or find it by which($PATH) p, err := plugin.Open(sofile) if err != nil { fmt.Printf("--E-- plugin.Open(%s)(%v)\n",sofile,err) return err } fname := "Main" f, err := p.Lookup(fname) if( err != nil ){ fmt.Printf("--E-- plugin.Lookup(%s)(%v)\n",fname,err) return err } pin := PluginInfo {p,f,name,sofile} gshCtx.PluginFuncs = append(gshCtx.PluginFuncs,pin) fmt.Printf("--I-- added (%d)\n",len(gshCtx.PluginFuncs)) //fmt.Printf("--I-- first call(%s:%s)%v\n",sofile,fname,argv) os.Args = argv f.(func())() return err } func (gshCtx*GshContext)Args(argv[]string){ for i,v := range os.Args { fmt.Printf("[%v] %v\n",i,v) } } func (gshCtx *GshContext) showVersion(argv[]string){ if isin("-l",argv) { fmt.Printf("%v/%v (%v)",NAME,VERSION,DATE); }else{ fmt.Printf("%v",VERSION); } if isin("-a",argv) { fmt.Printf(" %s",AUTHOR) } if !isin("-n",argv) { fmt.Printf("\n") } } // Scanf // string decomposer // scanf [format] [input] func scanv(sstr string)(strv[]string){ strv = strings.Split(sstr," ") return strv } func scanUntil(src,end string)(rstr string,leng int){ idx := strings.Index(src,end) if 0 <= idx { rstr = src[0:idx] return rstr,idx+len(end) } return src,0 } // -bn -- display base-name part only // can be in some %fmt, for sed rewriting func (gsh*GshContext)printVal(fmts string, vstr string, optv[]string){ //vint,err := strconv.Atoi(vstr) var ival int64 = 0 n := 0 err := error(nil) if strBegins(vstr,"_") { vx,_ := strconv.Atoi(vstr[1:]) if vx < len(gsh.iValues) { vstr = gsh.iValues[vx] }else{ } } // should use Eval() if strBegins(vstr,"0x") { n,err = fmt.Sscanf(vstr[2:],"%x",&ival) }else{ n,err = fmt.Sscanf(vstr,"%d",&ival) //fmt.Printf("--D-- n=%d err=(%v) {%s}=%v\n",n,err,vstr, ival) } if n == 1 && err == nil { //fmt.Printf("--D-- formatn(%v) ival(%v)\n",fmts,ival) fmt.Printf("%"+fmts,ival) }else{ if isin("-bn",optv){ fmt.Printf("%"+fmts,filepath.Base(vstr)) }else{ fmt.Printf("%"+fmts,vstr) } } } func (gsh*GshContext)printfv(fmts,div string,argv[]string,optv[]string,list[]string){ //fmt.Printf("{%d}",len(list)) //curfmt := "v" outlen := 0 curfmt := gsh.iFormat if 0 < len(fmts) { for xi := 0; xi < len(fmts); xi++ { fch := fmts[xi] if fch == '%' { if xi+1 < len(fmts) { curfmt = string(fmts[xi+1]) gsh.iFormat = curfmt xi += 1 if xi+1 < len(fmts) && fmts[xi+1] == '(' { vals,leng := scanUntil(fmts[xi+2:],")") //fmt.Printf("--D-- show fmt(%v) val(%v) next(%v)\n",curfmt,vals,leng) gsh.printVal(curfmt,vals,optv) xi += 2+leng-1 outlen += 1 } continue } } if fch == '_' { hi,leng := scanInt(fmts[xi+1:]) if 0 < leng { if hi < len(gsh.iValues) { gsh.printVal(curfmt,gsh.iValues[hi],optv) outlen += 1 // should be the real length }else{ fmt.Printf("((out-range))") } xi += leng continue; } } fmt.Printf("%c",fch) outlen += 1 } }else{ //fmt.Printf("--D-- print {%s}\n") for i,v := range list { if 0 < i { fmt.Printf(div) } gsh.printVal(curfmt,v,optv) outlen += 1 } } if 0 < outlen { fmt.Printf("\n") } } func (gsh*GshContext)Scanv(argv[]string){ //fmt.Printf("--D-- Scanv(%v)\n",argv) if len(argv) == 1 { return } argv = argv[1:] fmts := "" if strBegins(argv[0],"-F") { fmts = argv[0] gsh.iDelimiter = fmts argv = argv[1:] } input := strings.Join(argv," ") if fmts == "" { // simple decomposition v := scanv(input) gsh.iValues = v //fmt.Printf("%v\n",strings.Join(v,",")) }else{ v := make([]string,8) n,err := fmt.Sscanf(input,fmts,&v[0],&v[1],&v[2],&v[3]) fmt.Printf("--D-- Scanf ->(%v) n=%d err=(%v)\n",v,n,err) gsh.iValues = v } } func (gsh*GshContext)Printv(argv[]string){ if false { //@@U fmt.Printf("%v\n",strings.Join(argv[1:]," ")) return } //fmt.Printf("--D-- Printv(%v)\n",argv) //fmt.Printf("%v\n",strings.Join(gsh.iValues,",")) div := gsh.iDelimiter fmts := "" argv = argv[1:] if 0 < len(argv) { if strBegins(argv[0],"-F") { div = argv[0][2:] argv = argv[1:] } } optv := []string{} for _,v := range argv { if strBegins(v,"-"){ optv = append(optv,v) argv = argv[1:] }else{ break; } } if 0 < len(argv) { fmts = strings.Join(argv," ") } gsh.printfv(fmts,div,argv,optv,gsh.iValues) } func (gsh*GshContext)Basename(argv[]string){ for i,v := range gsh.iValues { gsh.iValues[i] = filepath.Base(v) } } func (gsh*GshContext)Sortv(argv[]string){ sv := gsh.iValues sort.Slice(sv , func(i,j int) bool { return sv[i] < sv[j] }) } func (gsh*GshContext)Shiftv(argv[]string){ vi := len(gsh.iValues) if 0 < vi { if isin("-r",argv) { top := gsh.iValues[0] gsh.iValues = append(gsh.iValues[1:],top) }else{ gsh.iValues = gsh.iValues[1:] } } } func (gsh*GshContext)Enq(argv[]string){ } func (gsh*GshContext)Deq(argv[]string){ } func (gsh*GshContext)Push(argv[]string){ gsh.iValStack = append(gsh.iValStack,argv[1:]) fmt.Printf("depth=%d\n",len(gsh.iValStack)) } func (gsh*GshContext)Dump(argv[]string){ for i,v := range gsh.iValStack { fmt.Printf("%d %v\n",i,v) } } func (gsh*GshContext)Pop(argv[]string){ depth := len(gsh.iValStack) if 0 < depth { v := gsh.iValStack[depth-1] if isin("-cat",argv){ gsh.iValues = append(gsh.iValues,v...) }else{ gsh.iValues = v } gsh.iValStack = gsh.iValStack[0:depth-1] fmt.Printf("depth=%d %s\n",len(gsh.iValStack),gsh.iValues) }else{ fmt.Printf("depth=%d\n",depth) } } // Command Interpreter func (gshCtx*GshContext)gshellv(argv []string) (fin bool) { fin = false if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv((%d))\n",len(argv)) } if len(argv) <= 0 { return false } xargv := []string{} for ai := 0; ai < len(argv); ai++ { xargv = append(xargv,strsubst(gshCtx,argv[ai],false)) } argv = xargv if false { for ai := 0; ai < len(argv); ai++ { fmt.Printf("[%d] %s [%d]%T\n", ai,argv[ai],len(argv[ai]),argv[ai]) } } cmd := argv[0] if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv(%d)%v\n",len(argv),argv) } switch { // https://tour.golang.org/flowcontrol/11 case cmd == "": gshCtx.xPwd([]string{}); // emtpy command case cmd == "-x": gshCtx.CmdTrace = ! gshCtx.CmdTrace case cmd == "-xt": gshCtx.CmdTime = ! gshCtx.CmdTime case cmd == "-ot": gshCtx.sconnect(true, argv) case cmd == "-ou": gshCtx.sconnect(false, argv) case cmd == "-it": gshCtx.saccept(true , argv) case cmd == "-iu": gshCtx.saccept(false, argv) case cmd == "-i" || cmd == "<" || cmd == "-o" || cmd == ">" || cmd == "-a" || cmd == ">>" || cmd == "-s" || cmd == "><": gshCtx.redirect(argv) case cmd == "|": gshCtx.fromPipe(argv) case cmd == "args": gshCtx.Args(argv) case cmd == "bg" || cmd == "-bg": rfin := gshCtx.inBackground(argv[1:]) return rfin case cmd == "-bn": gshCtx.Basename(argv) case cmd == "call": _,_ = gshCtx.excommand(false,argv[1:]) case cmd == "cd" || cmd == "chdir": gshCtx.xChdir(argv); case cmd == "-cksum": gshCtx.xFind(argv) case cmd == "-sum": gshCtx.xFind(argv) case cmd == "-sumtest": str := "" if 1 < len(argv) { str = argv[1] } crc := strCRC32(str,uint64(len(str))) fprintf(stderr,"%v %v\n",crc,len(str)) case cmd == "close": gshCtx.xClose(argv) case cmd == "gcp": gshCtx.FileCopy(argv) case cmd == "dec" || cmd == "decode": gshCtx.Dec(argv) case cmd == "#define": case cmd == "dic" || cmd == "d": xDic(argv) case cmd == "dump": gshCtx.Dump(argv) case cmd == "echo" || cmd == "e": echo(argv,true) case cmd == "enc" || cmd == "encode": gshCtx.Enc(argv) case cmd == "env": env(argv) case cmd == "eval": xEval(argv[1:],true) case cmd == "ev" || cmd == "events": dumpEvents(argv) case cmd == "exec": _,_ = gshCtx.excommand(true,argv[1:]) // should not return here case cmd == "exit" || cmd == "quit": // write Result code EXIT to 3> return true case cmd == "fdls": // dump the attributes of fds (of other process) case cmd == "-find" || cmd == "fin" || cmd == "ufind" || cmd == "uf": gshCtx.xFind(argv[1:]) case cmd == "fu": gshCtx.xFind(argv[1:]) case cmd == "fork": // mainly for a server case cmd == "-gen": gshCtx.gen(argv) case cmd == "-go": gshCtx.xGo(argv) case cmd == "-grep": gshCtx.xFind(argv) case cmd == "gdeq": gshCtx.Deq(argv) case cmd == "genq": gshCtx.Enq(argv) case cmd == "gpop": gshCtx.Pop(argv) case cmd == "gpush": gshCtx.Push(argv) case cmd == "history" || cmd == "hi": // hi should be alias gshCtx.xHistory(argv) case cmd == "jobs": gshCtx.xJobs(argv) case cmd == "lnsp" || cmd == "nlsp": gshCtx.SplitLine(argv) case cmd == "-ls": gshCtx.xFind(argv) case cmd == "nop": // do nothing case cmd == "pipe": gshCtx.xOpen(argv) case cmd == "plug" || cmd == "plugin" || cmd == "pin": gshCtx.xPlugin(argv[1:]) case cmd == "print" || cmd == "-pr": // output internal slice // also sprintf should be gshCtx.Printv(argv) case cmd == "ps": gshCtx.xPs(argv) case cmd == "pstitle": // to be gsh.title case cmd == "rexecd" || cmd == "rexd": gshCtx.RexecServer(argv) case cmd == "rexec" || cmd == "rex": gshCtx.RexecClient(argv) case cmd == "repeat" || cmd == "rep": // repeat cond command gshCtx.repeat(argv) case cmd == "replay": gshCtx.xReplay(argv) case cmd == "scan": // scan input (or so in fscanf) to internal slice (like Files or map) gshCtx.Scanv(argv) case cmd == "set": // set name ... case cmd == "serv": gshCtx.httpServer(argv) case cmd == "shift": gshCtx.Shiftv(argv) case cmd == "sleep": gshCtx.sleep(argv) case cmd == "-sort": gshCtx.Sortv(argv) case cmd == "j" || cmd == "join": gshCtx.Rjoin(argv) case cmd == "a" || cmd == "alpa": gshCtx.Rexec(argv) case cmd == "jcd" || cmd == "jchdir": gshCtx.Rchdir(argv) case cmd == "jget": gshCtx.Rget(argv) case cmd == "jls": gshCtx.Rls(argv) case cmd == "jput": gshCtx.Rput(argv) case cmd == "jpwd": gshCtx.Rpwd(argv) case cmd == "time": fin = gshCtx.xTime(argv) case cmd == "ungets": if 1 < len(argv) { ungets(argv[1]+"\n") }else{ } case cmd == "pwd": gshCtx.xPwd(argv); case cmd == "ver" || cmd == "-ver" || cmd == "version": gshCtx.showVersion(argv) case cmd == "where": // data file or so? case cmd == "which": which("PATH",argv); case cmd == "gj" && 1 < len(argv) && argv[1] == "listen": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "serve": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "join": go gj_client(argv[1:]); case cmd == "gj": jsend(argv); case cmd == "jsend": jsend(argv); default: if gshCtx.whichPlugin(cmd,[]string{"-s"}) != nil { gshCtx.xPlugin(argv) }else{ notfound,_ := gshCtx.excommand(false,argv) if notfound { fmt.Printf("--E-- command not found (%v)\n",cmd) } } } return fin } func (gsh*GshContext)gshelll(gline string) (rfin bool) { argv := strings.Split(string(gline)," ") fin := gsh.gshellv(argv) return fin } func (gsh*GshContext)tgshelll(gline string)(xfin bool){ start := time.Now() fin := gsh.gshelll(gline) end := time.Now() elps := end.Sub(start); if gsh.CmdTime { fmt.Printf("--T-- " + time.Now().Format(time.Stamp) + "(%d.%09ds)\n", elps/1000000000,elps%1000000000) } return fin } func Ttyid() (int) { fi, err := os.Stdin.Stat() if err != nil { return 0; } //fmt.Printf("Stdin: %v Dev=%d\n", // fi.Mode(),fi.Mode()&os.ModeDevice) if (fi.Mode() & os.ModeDevice) != 0 { stat := syscall.Stat_t{}; err := syscall.Fstat(0,&stat) if err != nil { //fmt.Printf("--I-- Stdin: (%v)\n",err) }else{ //fmt.Printf("--I-- Stdin: rdev=%d %d\n", // stat.Rdev&0xFF,stat.Rdev); //fmt.Printf("--I-- Stdin: tty%d\n",stat.Rdev&0xFF); return int(stat.Rdev & 0xFF) } } return 0 } func (gshCtx *GshContext) ttyfile() string { //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) ttyfile := gshCtx.GshHomeDir + "/" + "gsh-tty" + fmt.Sprintf("%02d",gshCtx.TerminalId) //strconv.Itoa(gshCtx.TerminalId) //fmt.Printf("--I-- ttyfile=%s\n",ttyfile) return ttyfile } func (gshCtx *GshContext) ttyline()(*os.File){ file, err := os.OpenFile(gshCtx.ttyfile(),os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if err != nil { fmt.Printf("--F-- cannot open %s (%s)\n",gshCtx.ttyfile(),err) return file; } return file } func (gshCtx *GshContext)getline(hix int, skipping bool, prevline string) (string) { if( skipping ){ reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) }else if true { return xgetline(hix,prevline,gshCtx) } /* else if( with_exgetline && gshCtx.GetLine != "" ){ //var xhix int64 = int64(hix); // cast newenv := os.Environ() newenv = append(newenv, "GSH_LINENO="+strconv.FormatInt(int64(hix),10) ) tty := gshCtx.ttyline() tty.WriteString(prevline) Pa := os.ProcAttr { "", // start dir newenv, //os.Environ(), []*os.File{os.Stdin,os.Stdout,os.Stderr,tty}, nil, } //fmt.Printf("--I-- getline=%s // %s\n",gsh_getlinev[0],gshCtx.GetLine) proc, err := os.StartProcess(gsh_getlinev[0],[]string{"getline","getline"},&Pa) if err != nil { fmt.Printf("--F-- getline process error (%v)\n",err) // for ; ; { } return "exit (getline program failed)" } //stat, err := proc.Wait() proc.Wait() buff := make([]byte,LINESIZE) count, err := tty.Read(buff) //_, err = tty.Read(buff) //fmt.Printf("--D-- getline (%d)\n",count) if err != nil { if ! (count == 0) { // && err.String() == "EOF" ) { fmt.Printf("--E-- getline error (%s)\n",err) } }else{ //fmt.Printf("--I-- getline OK \"%s\"\n",buff) } tty.Close() gline := string(buff[0:count]) return gline }else */ { // if isatty { fmt.Printf("!%d",hix) fmt.Print(PROMPT) // } reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) } } //== begin ======================================================= getline /* * getline.c * 2020-0819 extracted from dog.c * getline.go * 2020-0822 ported to Go */ /* package main // getline main import ( "fmt" // fmt "strings" // strings "os" // os "syscall" // syscall //"bytes" // os //"os/exec" // os ) */ // C language compatibility functions var errno = 0 var stdin *os.File = os.Stdin var stdout *os.File = os.Stdout var stderr *os.File = os.Stderr var EOF = -1 var NULL = 0 type FILE os.File type StrBuff []byte var NULL_FP *os.File = nil var NULLSP = 0 //var LINESIZE = 1024 func system(cmdstr string)(int){ PA := syscall.ProcAttr { "", // the starting directory os.Environ(), []uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, nil, } argv := strings.Split(cmdstr," ") pid,err := syscall.ForkExec(argv[0],argv,&PA) if( err != nil ){ fmt.Printf("--E-- syscall(%v) err(%v)\n",cmdstr,err) } syscall.Wait4(pid,nil,0,nil) /* argv := strings.Split(cmdstr," ") fmt.Fprintf(os.Stderr,"--I-- system(%v)\n",argv) //cmd := exec.Command(argv[0:]...) cmd := exec.Command(argv[0],argv[1],argv[2]) cmd.Stdin = strings.NewReader("output of system") var out bytes.Buffer cmd.Stdout = &out var serr bytes.Buffer cmd.Stderr = &serr err := cmd.Run() if err != nil { fmt.Fprintf(os.Stderr,"--E-- system(%v)err(%v)\n",argv,err) fmt.Printf("ERR:%s\n",serr.String()) }else{ fmt.Printf("%s",out.String()) } */ return 0 } func atoi(str string)(ret int){ ret,err := fmt.Sscanf(str,"%d",ret) if err == nil { return ret }else{ // should set errno return 0 } } func getenv(name string)(string){ val,got := os.LookupEnv(name) if got { return val }else{ return "?" } } func strcpy(dst StrBuff, src string){ var i int srcb := []byte(src) for i = 0; i < len(src) && srcb[i] != 0; i++ { dst[i] = srcb[i] } dst[i] = 0 } func xstrcpy(dst StrBuff, src StrBuff){ dst = src } func strcat(dst StrBuff, src StrBuff){ dst = append(dst,src...) } func strdup(str StrBuff)(string){ return string(str[0:strlen(str)]) } func sstrlen(str string)(int){ return len(str) } func strlen(str StrBuff)(int){ var i int for i = 0; i < len(str) && str[i] != 0; i++ { } return i } func sizeof(data StrBuff)(int){ return len(data) } func isatty(fd int)(ret int){ return 1 } func fopen(file string,mode string)(fp*os.File){ if mode == "r" { fp,err := os.Open(file) if( err != nil ){ fmt.Printf("--E-- fopen(%s,%s)=(%v)\n",file,mode,err) return NULL_FP; } return fp; }else{ fp,err := os.OpenFile(file,os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if( err != nil ){ return NULL_FP; } return fp; } } func fclose(fp*os.File){ fp.Close() } func fflush(fp *os.File)(int){ return 0 } func fgetc(fp*os.File)(int){ var buf [1]byte _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } func sfgets(str*string, size int, fp*os.File)(int){ buf := make(StrBuff,size) var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fgets(buf StrBuff, size int, fp*os.File)(int){ var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fputc(ch int , fp*os.File)(int){ var buf [1]byte buf[0] = byte(ch) fp.Write(buf[0:1]) return 0 } func fputs(buf StrBuff, fp*os.File)(int){ fp.Write(buf) return 0 } func xfputss(str string, fp*os.File)(int){ return fputs([]byte(str),fp) } func sscanf(str StrBuff,fmts string, params ...interface{})(int){ fmt.Sscanf(string(str[0:strlen(str)]),fmts,params...) return 0 } func fprintf(fp*os.File,fmts string, params ...interface{})(int){ fmt.Fprintf(fp,fmts,params...) return 0 } // Command Line IME //----------------------------------------------------------------------- MyIME var MyIMEVER = "MyIME/0.0.2"; type RomKana struct { dic string // dictionaly ID pat string // input pattern out string // output pattern hit int64 // count of hit and used } var dicents = 0 var romkana [1024]RomKana var Romkan []RomKana func isinDic(str string)(int){ for i,v := range Romkan { if v.pat == str { return i } } return -1 } const ( DIC_COM_LOAD = "im" DIC_COM_DUMP = "s" DIC_COM_LIST = "ls" DIC_COM_ENA = "en" DIC_COM_DIS = "di" ) func helpDic(argv []string){ out := stderr cmd := "" if 0 < len(argv) { cmd = argv[0] } fprintf(out,"--- %v Usage\n",cmd) fprintf(out,"... Commands\n") fprintf(out,"... %v %-3v [dicName] [dicURL ] -- Import dictionary\n",cmd,DIC_COM_LOAD) fprintf(out,"... %v %-3v [pattern] -- Search in dictionary\n",cmd,DIC_COM_DUMP) fprintf(out,"... %v %-3v [dicName] -- List dictionaries\n",cmd,DIC_COM_LIST) fprintf(out,"... %v %-3v [dicName] -- Disable dictionaries\n",cmd,DIC_COM_DIS) fprintf(out,"... %v %-3v [dicName] -- Enable dictionaries\n",cmd,DIC_COM_ENA) fprintf(out,"... Keys ... %v\n","ESC can be used for '\\'") fprintf(out,"... \\c -- Reverse the case of the last character\n",) fprintf(out,"... \\i -- Replace input with translated text\n",) fprintf(out,"... \\j -- On/Off translation mode\n",) fprintf(out,"... \\l -- Force Lower Case\n",) fprintf(out,"... \\u -- Force Upper Case (software CapsLock)\n",) fprintf(out,"... \\v -- Show translation actions\n",) fprintf(out,"... \\x -- Replace the last input character with it Hexa-Decimal\n",) } func xDic(argv[]string){ if len(argv) <= 1 { helpDic(argv) return } argv = argv[1:] var debug = false var info = false var silent = false var dump = false var builtin = false cmd := argv[0] argv = argv[1:] opt := "" arg := "" if 0 < len(argv) { arg1 := argv[0] if arg1[0] == '-' { switch arg1 { default: fmt.Printf("--Ed-- Unknown option(%v)\n",arg1) return case "-b": builtin = true case "-d": debug = true case "-s": silent = true case "-v": info = true } opt = arg1 argv = argv[1:] } } dicName := "" dicURL := "" if 0 < len(argv) { arg = argv[0] dicName = arg argv = argv[1:] } if 0 < len(argv) { dicURL = argv[0] argv = argv[1:] } if false { fprintf(stderr,"--Dd-- com(%v) opt(%v) arg(%v)\n",cmd,opt,arg) } if cmd == DIC_COM_LOAD { //dicType := "" dicBody := "" if !builtin && dicName != "" && dicURL == "" { f,err := os.Open(dicName) if err == nil { dicURL = dicName }else{ f,err = os.Open(dicName+".html") if err == nil { dicURL = dicName+".html" }else{ f,err = os.Open("gshdic-"+dicName+".html") if err == nil { dicURL = "gshdic-"+dicName+".html" } } } if err == nil { var buf = make([]byte,128*1024) count,err := f.Read(buf) f.Close() if info { fprintf(stderr,"--Id-- ReadDic(%v,%v)\n",count,err) } dicBody = string(buf[0:count]) } } if dicBody == "" { switch arg { default: dicName = "WorldDic" dicURL = WorldDic if info { fprintf(stderr,"--Id-- default dictionary \"%v\"\n", dicName); } case "wnn": dicName = "WnnDic" dicURL = WnnDic case "sumomo": dicName = "SumomoDic" dicURL = SumomoDic case "sijimi": dicName = "SijimiDic" dicURL = SijimiDic case "jkl": dicName = "JKLJaDic" dicURL = JA_JKLDic } if debug { fprintf(stderr,"--Id-- %v URL=%v\n\n",dicName,dicURL); } dicv := strings.Split(dicURL,",") if debug { fprintf(stderr,"--Id-- %v encoded data...\n",dicName) fprintf(stderr,"Type: %v\n",dicv[0]) fprintf(stderr,"Body: %v\n",dicv[1]) fprintf(stderr,"\n") } body,_ := base64.StdEncoding.DecodeString(dicv[1]) dicBody = string(body) } if info { fmt.Printf("--Id-- %v %v\n",dicName,dicURL) fmt.Printf("%s\n",dicBody) } if debug { fprintf(stderr,"--Id-- dicName %v text...\n",dicName) fprintf(stderr,"%v\n",string(dicBody)) } entv := strings.Split(dicBody,"\n"); if info { fprintf(stderr,"--Id-- %v scan...\n",dicName); } var added int = 0 var dup int = 0 for i,v := range entv { var pat string var out string fmt.Sscanf(v,"%s %s",&pat,&out) if len(pat) <= 0 { }else{ if 0 <= isinDic(pat) { dup += 1 continue } romkana[dicents] = RomKana{dicName,pat,out,0} dicents += 1 added += 1 Romkan = append(Romkan,RomKana{dicName,pat,out,0}) if debug { fmt.Printf("[%3v]:[%2v]%-8v [%2v]%v\n", i,len(pat),pat,len(out),out) } } } if !silent { url := dicURL if strBegins(url,"data:") { url = "builtin" } fprintf(stderr,"--Id-- %v scan... %v added, %v dup. / %v total (%v)\n", dicName,added,dup,len(Romkan),url); } // should sort by pattern length for conclete match, for performance if debug { arg = "" // search pattern dump = true } } if cmd == DIC_COM_DUMP || dump { fprintf(stderr,"--Id-- %v dump... %v entries:\n",dicName,len(Romkan)); var match = 0 for i := 0; i < len(Romkan); i++ { dic := Romkan[i].dic pat := Romkan[i].pat out := Romkan[i].out if arg == "" || 0 <= strings.Index(pat,arg)||0 <= strings.Index(out,arg) { fmt.Printf("\\\\%v\t%v [%2v]%-8v [%2v]%v\n", i,dic,len(pat),pat,len(out),out) match += 1 } } fprintf(stderr,"--Id-- %v matched %v / %v entries:\n",arg,match,len(Romkan)); } } func loadDefaultDic(dic int){ if( 0 < len(Romkan) ){ return } //fprintf(stderr,"\r\n") xDic([]string{"dic",DIC_COM_LOAD}); var info = false if info { fprintf(stderr,"--Id-- Conguraturations!! WorldDic is now activated.\r\n") fprintf(stderr,"--Id-- enter \"dic\" command for help.\r\n") } } func readDic()(int){ /* var rk *os.File; var dic = "MyIME-dic.txt"; //rk = fopen("romkana.txt","r"); //rk = fopen("JK-JA-morse-dic.txt","r"); rk = fopen(dic,"r"); if( rk == NULL_FP ){ if( true ){ fprintf(stderr,"--%s-- Could not load %s\n",MyIMEVER,dic); } return -1; } if( true ){ var di int; var line = make(StrBuff,1024); var pat string var out string for di = 0; di < 1024; di++ { if( fgets(line,sizeof(line),rk) == NULLSP ){ break; } fmt.Sscanf(string(line[0:strlen(line)]),"%s %s",&pat,&out); //sscanf(line,"%s %[^\r\n]",&pat,&out); romkana[di].pat = pat; romkana[di].out = out; //fprintf(stderr,"--Dd- %-10s %s\n",pat,out) } dicents += di if( false ){ fprintf(stderr,"--%s-- loaded romkana.txt [%d]\n",MyIMEVER,di); for di = 0; di < dicents; di++ { fprintf(stderr, "%s %s\n",romkana[di].pat,romkana[di].out); } } } fclose(rk); //romkana[dicents].pat = "//ddump" //romkana[dicents].pat = "//ddump" // dump the dic. and clean the command input */ return 0; } func matchlen(stri string, pati string)(int){ if strBegins(stri,pati) { return len(pati) }else{ return 0 } } func convs(src string)(string){ var si int; var sx = len(src); var di int; var mi int; var dstb []byte for si = 0; si < sx; { // search max. match from the position if strBegins(src[si:],"%x/") { // %x/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 //fmt.Sscanf(src[si+3:si+3+ix],"%d",&iv) fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%x",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%d/") { // %d/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%d",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%t") { now := time.Now() if true { date := now.Format(time.Stamp) dstb = append(dstb,[]byte(date)...) si = si+3 } continue } var maxlen int = 0; var len int; mi = -1; for di = 0; di < dicents; di++ { len = matchlen(src[si:],romkana[di].pat); if( maxlen < len ){ maxlen = len; mi = di; } } if( 0 < maxlen ){ out := romkana[mi].out; dstb = append(dstb,[]byte(out)...); si += maxlen; }else{ dstb = append(dstb,src[si]) si += 1; } } return string(dstb) } func trans(src string)(int){ dst := convs(src); xfputss(dst,stderr); return 0; } //------------------------------------------------------------- LINEEDIT // "?" at the top of the line means searching history // should be compatilbe with Telnet const ( EV_MODE = 255 EV_IDLE = 254 EV_TIMEOUT = 253 GO_UP = 252 // k GO_DOWN = 251 // j GO_RIGHT = 250 // l GO_LEFT = 249 // h DEL_RIGHT = 248 // x GO_TOPL = 'A'-0x40 // 0 GO_ENDL = 'E'-0x40 // $ GO_TOPW = 239 // b GO_ENDW = 238 // e GO_NEXTW = 237 // w GO_FORWCH = 229 // f GO_PAIRCH = 228 // % GO_DEL = 219 // d HI_SRCH_FW = 209 // / HI_SRCH_BK = 208 // ? HI_SRCH_RFW = 207 // n HI_SRCH_RBK = 206 // N ) // should return number of octets ready to be read immediately //fprintf(stderr,"\n--Select(%v %v)\n",err,r.Bits[0]) var EventRecvFd = -1 // file descriptor var EventSendFd = -1 const EventFdOffset = 1000000 const NormalFdOffset = 100 func putEvent(event int, evarg int){ if true { if EventRecvFd < 0 { var pv = []int{-1,-1} syscall.Pipe(pv) EventRecvFd = pv[0] EventSendFd = pv[1] //fmt.Printf("--De-- EventPipe created[%v,%v]\n",EventRecvFd,EventSendFd) } }else{ if EventRecvFd < 0 { // the document differs from this spec // https://golang.org/src/syscall/syscall_unix.go?s=8096:8158#L340 sv,err := syscall.Socketpair(syscall.AF_UNIX,syscall.SOCK_STREAM,0) EventRecvFd = sv[0] EventSendFd = sv[1] if err != nil { fmt.Printf("--De-- EventSock created[%v,%v](%v)\n", EventRecvFd,EventSendFd,err) } } } var buf = []byte{ byte(event)} n,err := syscall.Write(EventSendFd,buf) if err != nil { fmt.Printf("--De-- putEvent[%v](%3v)(%v %v)\n",EventSendFd,event,n,err) } } func ungets(str string){ for _,ch := range str { putEvent(int(ch),0) } } func (gsh*GshContext)xReplay(argv[]string){ hix := 0 tempo := 1.0 xtempo := 1.0 repeat := 1 for _,a := range argv { // tempo if strBegins(a,"x") { fmt.Sscanf(a[1:],"%f",&xtempo) tempo = 1 / xtempo //fprintf(stderr,"--Dr-- tempo=[%v]%v\n",a[2:],tempo); }else if strBegins(a,"r") { // repeat fmt.Sscanf(a[1:],"%v",&repeat) }else if strBegins(a,"!") { fmt.Sscanf(a[1:],"%d",&hix) }else{ fmt.Sscanf(a,"%d",&hix) } } if hix == 0 || len(argv) <= 1 { hix = len(gsh.CommandHistory)-1 } fmt.Printf("--Ir-- Replay(!%v x%v r%v)\n",hix,xtempo,repeat) //dumpEvents(hix) //gsh.xScanReplay(hix,false,repeat,tempo,argv) go gsh.xScanReplay(hix,true,repeat,tempo,argv) } // syscall.Select // 2020-0827 GShell-0.2.3 /* func FpollIn1(fp *os.File,usec int)(uintptr){ nfd := 1 rdv := syscall.FdSet {} fd1 := fp.Fd() bank1 := fd1/32 mask1 := int32(1 << fd1) rdv.Bits[bank1] = mask1 fd2 := -1 bank2 := -1 var mask2 int32 = 0 if 0 <= EventRecvFd { fd2 = EventRecvFd nfd = fd2 + 1 bank2 = fd2/32 mask2 = int32(1 << fd2) rdv.Bits[bank2] |= mask2 //fmt.Printf("--De-- EventPoll mask added [%d][%v][%v]\n",fd2,bank2,mask2) } tout := syscall.NsecToTimeval(int64(usec*1000)) //n,err := syscall.Select(nfd,&rdv,nil,nil,&tout) // spec. mismatch err := syscall.Select(nfd,&rdv,nil,nil,&tout) if err != nil { //fmt.Printf("--De-- select() err(%v)\n",err) } if err == nil { if 0 <= fd2 && (rdv.Bits[bank2] & mask2) != 0 { if false { fmt.Printf("--De-- got Event\n") } return uintptr(EventFdOffset + fd2) }else if (rdv.Bits[bank1] & mask1) != 0 { return uintptr(NormalFdOffset + fd1) }else{ return 1 } }else{ return 0 } } */ func fgetcTimeout1(fp *os.File,usec int)(int){ READ1: //readyFd := FpollIn1(fp,usec) readyFd := CFpollIn1(fp,usec) if readyFd < 100 { return EV_TIMEOUT } var buf [1]byte if EventFdOffset <= readyFd { fd := int(readyFd-EventFdOffset) _,err := syscall.Read(fd,buf[0:1]) if( err != nil ){ return EOF; }else{ if buf[0] == EV_MODE { recvEvent(fd) goto READ1 } return int(buf[0]) } } _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } func visibleChar(ch int)(string){ switch { case '!' <= ch && ch <= '~': return string(ch) } switch ch { case ' ': return "\\s" case '\n': return "\\n" case '\r': return "\\r" case '\t': return "\\t" } switch ch { case 0x00: return "NUL" case 0x07: return "BEL" case 0x08: return "BS" case 0x0E: return "SO" case 0x0F: return "SI" case 0x1B: return "ESC" case 0x7F: return "DEL" } switch ch { case EV_IDLE: return fmt.Sprintf("IDLE") case EV_MODE: return fmt.Sprintf("MODE") } return fmt.Sprintf("%X",ch) } func recvEvent(fd int){ var buf = make([]byte,1) _,_ = syscall.Read(fd,buf[0:1]) if( buf[0] != 0 ){ romkanmode = true }else{ romkanmode = false } } func (gsh*GshContext)xScanReplay(hix int,replay bool,repeat int,tempo float64,argv[]string){ var Start time.Time var events = []Event{} for _,e := range Events { if hix == 0 || e.CmdIndex == hix { events = append(events,e) } } elen := len(events) if 0 < elen { if events[elen-1].event == EV_IDLE { events = events[0:elen-1] } } for r := 0; r < repeat; r++ { for i,e := range events { nano := e.when.Nanosecond() micro := nano / 1000 if Start.Second() == 0 { Start = time.Now() } diff := time.Now().Sub(Start) if replay { if e.event != EV_IDLE { putEvent(e.event,0) if e.event == EV_MODE { // event with arg putEvent(int(e.evarg),0) } } }else{ fmt.Printf("%7.3fms #%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n", float64(diff)/1000000.0, i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event), float64(e.evarg)/1000000.0) } if e.event == EV_IDLE { d := time.Duration(float64(time.Duration(e.evarg)) * tempo) //nsleep(time.Duration(e.evarg)) nsleep(d) } } } } func dumpEvents(arg[]string){ hix := 0 if 1 < len(arg) { fmt.Sscanf(arg[1],"%d",&hix) } for i,e := range Events { nano := e.when.Nanosecond() micro := nano / 1000 //if e.event != EV_TIMEOUT { if hix == 0 || e.CmdIndex == hix { fmt.Printf("#%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n",i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event),float64(e.evarg)/1000000.0) } //} } } func fgetcTimeout(fp *os.File,usec int)(int){ ch := fgetcTimeout1(fp,usec) if ch != EV_TIMEOUT { now := time.Now() if 0 < len(Events) { last := Events[len(Events)-1] dura := int64(now.Sub(last.when)) Events = append(Events,Event{last.when,EV_IDLE,dura,last.CmdIndex}) } Events = append(Events,Event{time.Now(),ch,0,CmdIndex}) } return ch } var AtConsoleLineTop = true var TtyMaxCol = 72 // to be obtained by ioctl? var EscTimeout = (100*1000) var ( MODE_VicMode bool // vi compatible command mode MODE_ShowMode bool romkanmode bool // shown translation mode, the mode to be retained MODE_Recursive bool // recursive translation MODE_CapsLock bool // software CapsLock MODE_LowerLock bool // force lower-case character lock MODE_ViInsert int // visible insert mode, should be like "I" icon in X Window MODE_ViTrace bool // output newline before translation ) type IInput struct { lno int lastlno int pch []int // input queue prompt string line string right string inJmode bool pinJmode bool waitingMeta string // waiting meta character LastCmd string } func (iin*IInput)Getc(timeoutUs int)(int){ ch1 := EOF ch2 := EOF ch3 := EOF if( 0 < len(iin.pch) ){ // deQ ch1 = iin.pch[0] iin.pch = iin.pch[1:] }else{ ch1 = fgetcTimeout(stdin,timeoutUs); } if( ch1 == 033 ){ /// escape sequence ch2 = fgetcTimeout(stdin,EscTimeout); if( ch2 == EV_TIMEOUT ){ }else{ ch3 = fgetcTimeout(stdin,EscTimeout); if( ch3 == EV_TIMEOUT ){ iin.pch = append(iin.pch,ch2) // enQ }else{ switch( ch2 ){ default: iin.pch = append(iin.pch,ch2) // enQ iin.pch = append(iin.pch,ch3) // enQ case '[': switch( ch3 ){ case 'A': ch1 = GO_UP; // ^ case 'B': ch1 = GO_DOWN; // v case 'C': ch1 = GO_RIGHT; // > case 'D': ch1 = GO_LEFT; // < case '3': ch4 := fgetcTimeout(stdin,EscTimeout); if( ch4 == '~' ){ //fprintf(stderr,"x[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); ch1 = DEL_RIGHT } } case '\\': //ch4 := fgetcTimeout(stdin,EscTimeout); //fprintf(stderr,"y[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); switch( ch3 ){ case '~': ch1 = DEL_RIGHT } } } } } return ch1 } func (inn*IInput)clearline(){ var i int fprintf(stderr,"\r"); // should be ANSI ESC sequence for i = 0; i < TtyMaxCol; i++ { // to the max. position in this input action fputc(' ',os.Stderr); } fprintf(stderr,"\r"); } func (iin*IInput)Redraw(){ redraw(iin,iin.lno,iin.line,iin.right) } func redraw(iin *IInput,lno int,line string,right string){ inMeta := false showMode := "" showMeta := "" // visible Meta mode on the cursor position showLino := fmt.Sprintf("!%d! ",lno) InsertMark := "" // in visible insert mode if MODE_VicMode { }else if 0 < len(iin.right) { InsertMark = " " } if( 0 < len(iin.waitingMeta) ){ inMeta = true if iin.waitingMeta[0] != 033 { showMeta = iin.waitingMeta } } if( romkanmode ){ //romkanmark = " *"; }else{ //romkanmark = ""; } if MODE_ShowMode { romkan := "--" inmeta := "-" inveri := "" if MODE_CapsLock { inmeta = "A" } if MODE_LowerLock { inmeta = "a" } if MODE_ViTrace { inveri = "v" } if MODE_VicMode { inveri = ":" } if romkanmode { romkan = "\343\201\202" if MODE_CapsLock { inmeta = "R" }else{ inmeta = "r" } } if inMeta { inmeta = "\\" } showMode = "["+romkan+inmeta+inveri+"]"; } Pre := "\r" + showMode + showLino Output := "" Left := "" Right := "" if romkanmode { Left = convs(line) Right = InsertMark+convs(right) }else{ Left = line Right = InsertMark+right } Output = Pre+Left if MODE_ViTrace { Output += iin.LastCmd } Output += showMeta+Right for len(Output) < TtyMaxCol { // to the max. position that may be dirty Output += " " // should be ANSI ESC sequence // not necessary just after newline } Output += Pre+Left+showMeta // to set the cursor to the current input position fprintf(stderr,"%s",Output) if MODE_ViTrace { if 0 < len(iin.LastCmd) { iin.LastCmd = "" fprintf(stderr,"\r\n") } } AtConsoleLineTop = false } // utf8 func delHeadChar(str string)(rline string,head string){ _,clen := utf8.DecodeRune([]byte(str)) head = string(str[0:clen]) return str[clen:],head } func delTailChar(str string)(rline string, last string){ var i = 0 var clen = 0 for { _,siz := utf8.DecodeRune([]byte(str)[i:]) if siz <= 0 { break } clen = siz i += siz } last = str[len(str)-clen:] return str[0:len(str)-clen],last } // 3> for output and history // 4> for keylog? // Command Line Editor func xgetline(lno int, prevline string, gsh*GshContext)(string){ var iin IInput iin.lastlno = lno iin.lno = lno CmdIndex = len(gsh.CommandHistory) if( isatty(0) == 0 ){ if( sfgets(&iin.line,LINESIZE,stdin) == NULL ){ iin.line = "exit\n"; }else{ } return iin.line } if( true ){ //var pts string; //pts = ptsname(0); //pts = ttyname(0); //fprintf(stderr,"--pts[0] = %s\n",pts?pts:"?"); } if( false ){ fprintf(stderr,"! "); fflush(stderr); sfgets(&iin.line,LINESIZE,stdin); return iin.line } system("/bin/stty -echo -icanon"); xline := iin.xgetline1(prevline,gsh) system("/bin/stty echo sane"); return xline } func (iin*IInput)Translate(cmdch int){ romkanmode = !romkanmode; if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); }else if( cmdch == 'J' ){ fprintf(stderr,"J\r\n"); iin.inJmode = true } iin.Redraw(); loadDefaultDic(cmdch); iin.Redraw(); } func (iin*IInput)Replace(cmdch int){ iin.LastCmd = fmt.Sprintf("\\%v",string(cmdch)) iin.Redraw(); loadDefaultDic(cmdch); dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" if( cmdch == 'I' ){ fprintf(stderr,"I\r\n"); iin.inJmode = true } iin.Redraw(); } // aa 12 a1a1 func isAlpha(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } return false } func isAlnum(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } if '0' <= ch && ch <= '9' { return true } return false } // 0.2.8 2020-0901 created // DecodeRuneInString func (iin*IInput)GotoTOPW(){ str := iin.line i := len(str) if i <= 0 { return } //i0 := i i -= 1 lastSize := 0 var lastRune rune var found = -1 for 0 < i { // skip preamble spaces lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if !isAlnum(lastRune) { // character, type, or string to be searched i -= lastSize continue } break } for 0 < i { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { continue } // not the character top if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i -= lastSize } if found < 0 && i == 0 { found = 0 } if 0 <= found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word i += lastSize } iin.right = str[i:] + iin.right if 0 < i { iin.line = str[0:i] }else{ iin.line = "" } } //fmt.Printf("\n(%d,%d,%d)[%s][%s]\n",i0,i,found,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoENDW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var lastW = 0 i := 0 inWord := false lastRune,lastSize = utf8.DecodeRuneInString(str[0:]) if isAlnum(lastRune) { r,z := utf8.DecodeRuneInString(str[lastSize:]) if 0 < z && isAlnum(r) { inWord = true } } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i // the last alnum if in alnum word i += lastSize } if inWord { goto DISP } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if isAlnum(lastRune) { // character, type, or string to be searched break } i += lastSize } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i i += lastSize } DISP: if 0 < lastW { iin.line = iin.line + str[0:lastW] iin.right = str[lastW:] } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoNEXTW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var found = -1 i := 1 for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i += lastSize } if 0 < found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word found += lastSize } iin.line = iin.line + str[0:found] if 0 < found { iin.right = str[found:] }else{ iin.right = "" } } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0902 created func (iin*IInput)GotoPAIRCH(){ str := iin.right if len(str) <= 0 { return } lastRune,lastSize := utf8.DecodeRuneInString(str[0:]) if lastSize <= 0 { return } forw := false back := false pair := "" switch string(lastRune){ case "{": pair = "}"; forw = true case "}": pair = "{"; back = true case "(": pair = ")"; forw = true case ")": pair = "("; back = true case "[": pair = "]"; forw = true case "]": pair = "["; back = true case "<": pair = ">"; forw = true case ">": pair = "<"; back = true case "\"": pair = "\""; // context depednet, can be f" or back-double quote case "'": pair = "'"; // context depednet, can be f' or back-quote // case Japanese Kakkos } if forw { iin.SearchForward(pair) } if back { iin.SearchBackward(pair) } } // 0.2.8 2020-0902 created func (iin*IInput)SearchForward(pat string)(bool){ right := iin.right found := -1 i := 0 if strBegins(right,pat) { _,z := utf8.DecodeRuneInString(right[i:]) if 0 < z { i += z } } for i < len(right) { if strBegins(right[i:],pat) { found = i break } _,z := utf8.DecodeRuneInString(right[i:]) if z <= 0 { break } i += z } if 0 <= found { iin.line = iin.line + right[0:found] iin.right = iin.right[found:] return true }else{ return false } } // 0.2.8 2020-0902 created func (iin*IInput)SearchBackward(pat string)(bool){ line := iin.line found := -1 i := len(line)-1 for i = i; 0 <= i; i-- { _,z := utf8.DecodeRuneInString(line[i:]) if z <= 0 { continue } //fprintf(stderr,"-- %v %v\n",pat,line[i:]) if strBegins(line[i:],pat) { found = i break } } //fprintf(stderr,"--%d\n",found) if 0 <= found { iin.right = line[found:] + iin.right iin.line = line[0:found] return true }else{ return false } } // 0.2.8 2020-0902 created // search from top, end, or current position func (gsh*GshContext)SearchHistory(pat string, forw bool)(bool,string){ if forw { for _,v := range gsh.CommandHistory { if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } }else{ hlen := len(gsh.CommandHistory) for i := hlen-1; 0 < i ; i-- { v := gsh.CommandHistory[i] if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } } //fprintf(stderr,"\n--De-- not-found(%v)\n",pat) return false,"(Not Found in History)" } // 0.2.8 2020-0902 created func (iin*IInput)GotoFORWSTR(pat string,gsh*GshContext){ found := false if 0 < len(iin.right) { found = iin.SearchForward(pat) } if !found { found,line := gsh.SearchHistory(pat,true) if found { iin.line = line iin.right = "" } } } func (iin*IInput)GotoBACKSTR(pat string, gsh*GshContext){ found := false if 0 < len(iin.line) { found = iin.SearchBackward(pat) } if !found { found,line := gsh.SearchHistory(pat,false) if found { iin.line = line iin.right = "" } } } func (iin*IInput)getstring1(prompt string)(string){ // should be editable iin.clearline(); fprintf(stderr,"\r%v",prompt) str := "" for { ch := iin.Getc(10*1000*1000) if ch == '\n' || ch == '\r' { break } sch := string(ch) str += sch fprintf(stderr,"%s",sch) } return str } // search pattern must be an array and selectable with ^N/^P var SearchPat = "" var SearchForw = true func (iin*IInput)xgetline1(prevline string, gsh*GshContext)(string){ var ch int; MODE_ShowMode = false MODE_VicMode = false iin.Redraw(); first := true for cix := 0; ; cix++ { iin.pinJmode = iin.inJmode iin.inJmode = false ch = iin.Getc(1000*1000) if ch != EV_TIMEOUT && first { first = false mode := 0 if romkanmode { mode = 1 } now := time.Now() Events = append(Events,Event{now,EV_MODE,int64(mode),CmdIndex}) } if ch == 033 { MODE_ShowMode = true MODE_VicMode = !MODE_VicMode iin.Redraw(); continue } if MODE_VicMode { switch ch { case '0': ch = GO_TOPL case '$': ch = GO_ENDL case 'b': ch = GO_TOPW case 'e': ch = GO_ENDW case 'w': ch = GO_NEXTW case '%': ch = GO_PAIRCH case 'j': ch = GO_DOWN case 'k': ch = GO_UP case 'h': ch = GO_LEFT case 'l': ch = GO_RIGHT case 'x': ch = DEL_RIGHT case 'a': MODE_VicMode = !MODE_VicMode ch = GO_RIGHT case 'i': MODE_VicMode = !MODE_VicMode iin.Redraw(); continue case '~': right,head := delHeadChar(iin.right) if len([]byte(head)) == 1 { ch = int(head[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.right = string(ch) + right } iin.Redraw(); continue case 'f': // GO_FORWCH iin.Redraw(); ch = iin.Getc(3*1000*1000) if ch == EV_TIMEOUT { iin.Redraw(); continue } SearchPat = string(ch) SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '/': SearchPat = iin.getstring1("/") // should be editable SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '?': SearchPat = iin.getstring1("?") // should be editable SearchForw = false iin.GotoBACKSTR(SearchPat,gsh) iin.Redraw(); continue case 'n': if SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue case 'N': if !SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue } } switch ch { case GO_TOPW: iin.GotoTOPW() iin.Redraw(); continue case GO_ENDW: iin.GotoENDW() iin.Redraw(); continue case GO_NEXTW: // to next space then iin.GotoNEXTW() iin.Redraw(); continue case GO_PAIRCH: iin.GotoPAIRCH() iin.Redraw(); continue } //fprintf(stderr,"A[%02X]\n",ch); if( ch == '\\' || ch == 033 ){ MODE_ShowMode = true metach := ch iin.waitingMeta = string(ch) iin.Redraw(); // set cursor //fprintf(stderr,"???\b\b\b") ch = fgetcTimeout(stdin,2000*1000) // reset cursor iin.waitingMeta = "" cmdch := ch if( ch == EV_TIMEOUT ){ if metach == 033 { continue } ch = metach }else /* if( ch == 'm' || ch == 'M' ){ mch := fgetcTimeout(stdin,1000*1000) if mch == 'r' { romkanmode = true }else{ romkanmode = false } continue }else */ if( ch == 'k' || ch == 'K' ){ MODE_Recursive = !MODE_Recursive iin.Translate(cmdch); continue }else if( ch == 'j' || ch == 'J' ){ iin.Translate(cmdch); continue }else if( ch == 'i' || ch == 'I' ){ iin.Replace(cmdch); continue }else if( ch == 'l' || ch == 'L' ){ MODE_LowerLock = !MODE_LowerLock MODE_CapsLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'u' || ch == 'U' ){ MODE_CapsLock = !MODE_CapsLock MODE_LowerLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'v' || ch == 'V' ){ MODE_ViTrace = !MODE_ViTrace if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'c' || ch == 'C' ){ if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) if len([]byte(tail)) == 1 { ch = int(tail[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.line = xline + string(ch) } } if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else{ iin.pch = append(iin.pch,ch) // push ch = '\\' } } switch( ch ){ case 'P'-0x40: ch = GO_UP case 'N'-0x40: ch = GO_DOWN case 'B'-0x40: ch = GO_LEFT case 'F'-0x40: ch = GO_RIGHT } //fprintf(stderr,"B[%02X]\n",ch); switch( ch ){ case 0: continue; case '\t': iin.Replace('j'); continue case 'X'-0x40: iin.Replace('j'); continue case EV_TIMEOUT: iin.Redraw(); if iin.pinJmode { fprintf(stderr,"\\J\r\n") iin.inJmode = true } continue case GO_UP: if iin.lno == 1 { continue } cmd,ok := gsh.cmdStringInHistory(iin.lno-1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno - 1 } iin.Redraw(); continue case GO_DOWN: cmd,ok := gsh.cmdStringInHistory(iin.lno+1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno + 1 }else{ iin.line = "" iin.right = "" if iin.lno == iin.lastlno-1 { iin.lno = iin.lno + 1 } } iin.Redraw(); continue case GO_LEFT: if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) iin.line = xline iin.right = tail + iin.right } iin.Redraw(); continue; case GO_RIGHT: if( 0 < len(iin.right) && iin.right[0] != 0 ){ xright,head := delHeadChar(iin.right) iin.right = xright iin.line += head } iin.Redraw(); continue; case EOF: goto EXIT; case 'R'-0x40: // replace dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" iin.Redraw(); continue; case 'T'-0x40: // just show the result readDic(); romkanmode = !romkanmode; iin.Redraw(); continue; case 'L'-0x40: iin.Redraw(); continue case 'K'-0x40: iin.right = "" iin.Redraw(); continue case 'E'-0x40: iin.line += iin.right iin.right = "" iin.Redraw(); continue case 'A'-0x40: iin.right = iin.line + iin.right iin.line = "" iin.Redraw(); continue case 'U'-0x40: iin.line = "" iin.right = "" iin.clearline(); iin.Redraw(); continue; case DEL_RIGHT: if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } continue; case 0x7F: // BS? not DEL if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } /* else if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } */ continue; case 'H'-0x40: if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } continue; } if( ch == '\n' || ch == '\r' ){ iin.line += iin.right; iin.right = "" iin.Redraw(); fputc(ch,stderr); AtConsoleLineTop = true break; } if MODE_CapsLock { if 'a' <= ch && ch <= 'z' { ch = ch+'A'-'a' } } if MODE_LowerLock { if 'A' <= ch && ch <= 'Z' { ch = ch+'a'-'A' } } iin.line += string(ch); iin.Redraw(); } EXIT: return iin.line + iin.right; } func getline_main(){ line := xgetline(0,"",nil) fprintf(stderr,"%s\n",line); /* dp = strpbrk(line,"\r\n"); if( dp != NULL ){ *dp = 0; } if( 0 ){ fprintf(stderr,"\n(%d)\n",int(strlen(line))); } if( lseek(3,0,0) == 0 ){ if( romkanmode ){ var buf [8*1024]byte; convs(line,buff); strcpy(line,buff); } write(3,line,strlen(line)); ftruncate(3,lseek(3,0,SEEK_CUR)); //fprintf(stderr,"outsize=%d\n",(int)lseek(3,0,SEEK_END)); lseek(3,0,SEEK_SET); close(3); }else{ fprintf(stderr,"\r\ngotline: "); trans(line); //printf("%s\n",line); printf("\n"); } */ } //== end ========================================================= getline // // $USERHOME/.gsh/ // gsh-rc.txt, or gsh-configure.txt // gsh-history.txt // gsh-aliases.txt // should be conditional? // func (gshCtx *GshContext)gshSetupHomedir()(bool) { homedir,found := userHomeDir() if !found { fmt.Printf("--E-- You have no UserHomeDir\n") return true } gshhome := homedir + "/" + GSH_HOME _, err2 := os.Stat(gshhome) if err2 != nil { err3 := os.Mkdir(gshhome,0700) if err3 != nil { fmt.Printf("--E-- Could not Create %s (%s)\n", gshhome,err3) return true } fmt.Printf("--I-- Created %s\n",gshhome) } gshCtx.GshHomeDir = gshhome return false } func setupGshContext()(GshContext,bool){ gshPA := syscall.ProcAttr { "", // the staring directory os.Environ(), // environ[] []uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, nil, // OS specific } cwd, _ := os.Getwd() gshCtx := GshContext { cwd, // StartDir "", // GetLine []GChdirHistory { {cwd,time.Now(),0} }, // ChdirHistory gshPA, []GCommandHistory{}, //something for invokation? GCommandHistory{}, // CmdCurrent false, []int{}, syscall.Rusage{}, "", // GshHomeDir Ttyid(), false, false, []PluginInfo{}, []string{}, " ", "v", ValueStack{}, GServer{"",""}, // LastServer "", // RSERV cwd, // RWD CheckSum{}, } err := gshCtx.gshSetupHomedir() return gshCtx, err } func (gsh*GshContext)gshelllh(gline string)(bool){ ghist := gsh.CmdCurrent ghist.WorkDir,_ = os.Getwd() ghist.WorkDirX = len(gsh.ChdirHistory)-1 //fmt.Printf("--D--ChdirHistory(@%d)\n",len(gsh.ChdirHistory)) ghist.StartAt = time.Now() rusagev1 := Getrusagev() gsh.CmdCurrent.FoundFile = []string{} fin := gsh.tgshelll(gline) rusagev2 := Getrusagev() ghist.Rusagev = RusageSubv(rusagev2,rusagev1) ghist.EndAt = time.Now() ghist.CmdLine = gline ghist.FoundFile = gsh.CmdCurrent.FoundFile /* record it but not show in list by default if len(gline) == 0 { continue } if gline == "hi" || gline == "history" { // don't record it continue } */ gsh.CommandHistory = append(gsh.CommandHistory, ghist) return fin } // Main loop func script(gshCtxGiven *GshContext) (_ GshContext) { gshCtxBuf,err0 := setupGshContext() if err0 { return gshCtxBuf; } gshCtx := &gshCtxBuf //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) //resmap() /* if false { gsh_getlinev, with_exgetline := which("PATH",[]string{"which","gsh-getline","-s"}) if with_exgetline { gsh_getlinev[0] = toFullpath(gsh_getlinev[0]) gshCtx.GetLine = toFullpath(gsh_getlinev[0]) }else{ fmt.Printf("--W-- No gsh-getline found. Using internal getline.\n"); } } */ ghist0 := gshCtx.CmdCurrent // something special, or gshrc script, or permanent history gshCtx.CommandHistory = append(gshCtx.CommandHistory,ghist0) prevline := "" skipping := false for hix := len(gshCtx.CommandHistory); ; { gline := gshCtx.getline(hix,skipping,prevline) if skipping { if strings.Index(gline,"fi") == 0 { fmt.Printf("fi\n"); skipping = false; }else{ //fmt.Printf("%s\n",gline); } continue } if strings.Index(gline,"if") == 0 { //fmt.Printf("--D-- if start: %s\n",gline); skipping = true; continue } if false { os.Stdout.Write([]byte("gotline:")) os.Stdout.Write([]byte(gline)) os.Stdout.Write([]byte("\n")) } gline = strsubst(gshCtx,gline,true) if false { fmt.Printf("fmt.Printf %%v - %v\n",gline) fmt.Printf("fmt.Printf %%s - %s\n",gline) fmt.Printf("fmt.Printf %%x - %s\n",gline) fmt.Printf("fmt.Printf %%U - %s\n",gline) fmt.Printf("Stouut.Write -") os.Stdout.Write([]byte(gline)) fmt.Printf("\n") } /* // should be cared in substitution ? if 0 < len(gline) && gline[0] == '!' { xgline, set, err := searchHistory(gshCtx,gline) if err { continue } if set { // set the line in command line editor } gline = xgline } */ fin := gshCtx.gshelllh(gline) if fin { break; } prevline = gline; hix++; } return *gshCtx } func main() { gshCtxBuf := GshContext{} gsh := &gshCtxBuf argv := os.Args if( isin("wss",argv) ){ gj_server(argv[1:]); return; } if( isin("wsc",argv) ){ gj_client(argv[1:]); return; } if 1 < len(argv) { if isin("version",argv){ gsh.showVersion(argv) return } if argv[1] == "gj" { if argv[2] == "listen" { go gj_server(argv[2:]); } if argv[2] == "server" { go gj_server(argv[2:]); } if argv[2] == "serve" { go gj_server(argv[2:]); } if argv[2] == "client" { go gj_client(argv[2:]); } if argv[2] == "join" { go gj_client(argv[2:]); } } comx := isinX("-c",argv) if 0 < comx { gshCtxBuf,err := setupGshContext() gsh := &gshCtxBuf if !err { gsh.gshellv(argv[comx+1:]) } return } } if 1 < len(argv) && isin("-s",argv) { }else{ gsh.showVersion(append(argv,[]string{"-l","-a"}...)) } script(nil) //gshCtx := script(nil) //gshelll(gshCtx,"time") } //
//
Considerations
// - inter gsh communication, possibly running in remote hosts -- to be remote shell // - merged histories of multiple parallel gsh sessions // - alias as a function or macro // - instant alias end environ export to the permanent > ~/.gsh/gsh-alias and gsh-environ // - retrieval PATH of files by its type // - gsh as an IME with completion using history and file names as dictionaies // - gsh a scheduler in precise time of within a millisecond // - all commands have its subucomand after "---" symbol // - filename expansion by "-find" command // - history of ext code and output of each commoand // - "script" output for each command by pty-tee or telnet-tee // - $BUILTIN command in PATH to show the priority // - "?" symbol in the command (not as in arguments) shows help request // - searching command with wild card like: which ssh-* // - longformat prompt after long idle time (should dismiss by BS) // - customizing by building plugin and dynamically linking it // - generating syntactic element like "if" by macro expansion (like CPP) >> alias // - "!" symbol should be used for negation, don't wast it just for job control // - don't put too long output to tty, record it into GSH_HOME/session-id/comand-id.log // - making canonical form of command at the start adding quatation or white spaces // - name(a,b,c) ... use "(" and ")" to show both delimiter and realm // - name? or name! might be useful // - htar format - packing directory contents into a single html file using data scheme // - filepath substitution shold be done by each command, expecially in case of builtins // - @N substition for the history of working directory, and @spec for more generic ones // - @dir prefix to do the command at there, that means like (chdir @dir; command) // - GSH_PATH for plugins // - standard command output: list of data with name, size, resouce usage, modified time // - generic sort key option -nm name, -sz size, -ru rusage, -ts start-time, -tm mod-time // -wc word-count, grep match line count, ... // - standard command execution result: a list of string, -tm, -ts, -ru, -sz, ... // - -tailf-filename like tail -f filename, repeat close and open before read // - max. size and max. duration and timeout of (generated) data transfer // - auto. numbering, aliasing, IME completion of file name (especially rm of quieer name) // - IME "?" at the top of the command line means searching history // - IME %d/0x10000/ %x/ffff/ // - IME ESC to go the edit mode like in vi, and use :command as :s/x/y/g to edit history // - gsh in WebAssembly // - gsh as a HTTP server of online-manual //---END--- (^-^)//ITS more
// var WorldDic = // "data:text/dic;base64,"+ "Ly8gTXlJTUUvMC4wLjEg6L6e5pu4ICgyMDIwLTA4MTlhKQpzZWthaSDkuJbnlYwKa28g44GT"+ "Cm5uIOOCkwpuaSDjgasKY2hpIOOBoQp0aSDjgaEKaGEg44GvCnNlIOOBmwprYSDjgYsKaSDj"+ "gYQK"; // var WnnDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL2Rp"+ "Y3ZlcglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNXbm5ccy8vXHMyMDIwLTA4MzAK"+ "R1NoZWxsCUdTaGVsbArjgo/jgZ/jgZcJ56eBCndhdGFzaGkJ56eBCndhdGFzaQnnp4EK44Gq"+ "44G+44GICeWQjeWJjQpuYW1hZQnlkI3liY0K44Gq44GL44GuCeS4remHjgpuYWthbm8J5Lit"+ "6YeOCndhCeOCjwp0YQnjgZ8Kc2kJ44GXCnNoaQnjgZcKbm8J44GuCm5hCeOBqgptYQnjgb4K"+ "ZQnjgYgKaGEJ44GvCm5hCeOBqgprYQnjgYsKbm8J44GuCmRlCeOBpwpzdQnjgZkKZVxzCWVj"+ "aG8KZGljCWRpYwplY2hvCWVjaG8KcmVwbGF5CXJlcGxheQpyZXBlYXQJcmVwZWF0CmR0CWRh"+ "dGVccysnJVklbSVkLSVIOiVNOiVTJwp0aW9uCXRpb24KJXQJJXQJLy8gdG8gYmUgYW4gYWN0"+ "aW9uCjwvdGV4dGFyZWE+Cg==" // var SumomoDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTdW1vbW9ccy8vXHMyMDIwLTA4MzAK"+ "c3UJ44GZCm1vCeOCggpubwnjga4KdQnjgYYKY2hpCeOBoQp0aQnjgaEKdWNoaQnlhoUKdXRp"+ "CeWGhQpzdW1vbW8J44GZ44KC44KCCnN1bW9tb21vCeOBmeOCguOCguOCggptb21vCeahgwpt"+ "b21vbW8J5qGD44KCCiwsCeOAgQouLgnjgIIKPC90ZXh0YXJlYT4K" // var SijimiDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTaGlqaW1pXHMvL1xzMjAyMC0wODMw"+ "CnNpCeOBlwpzaGkJ44GXCmppCeOBmAptaQnjgb8KbmEJ44GqCmp1CeOBmOOChQp4eXUJ44KF"+ "CnUJ44GGCm5pCeOBqwprbwnjgZMKYnUJ44G2Cm5uCeOCkwpubwnjga4KY2hpCeOBoQp0aQnj"+ "gaEKa2EJ44GLCnJhCeOCiQosLAnjgIEKLi4J44CCCnhuYW5hCeS4gwp4anV1CeWNgQp4bmkJ"+ "5LqMCmtveAnlgIsKa29xCeWAiwprb3gJ5YCLCm5hbmFqdXVuaXgJNzIKbmFuYWp1dW5peHgJ"+ "77yX77ySCm5hbmFqdXVuaVgJ77yX77ySCuS4g+WNgeS6jHgJNzIKa29idW5uCeWAi+WIhgp0"+ "aWthcmFxCeOBoeOBi+OCiQp0aWthcmEJ5YqbCmNoaWthcmEJ5YqbCjwvdGV4dGFyZWE+Cg=" // var JA_JKLDic = // "data:text/dic;base64,"+ "Ly92ZXJsCU15SU1FamRpY2ptb3JzZWpKQWpKS0woMjAyMGowODE5KSheLV4pL1NhdG94SVRT"+ "CmtqamprbGtqa2tsa2psIOS4lueVjApqamtqamwJ44GCCmtqbAnjgYQKa2tqbAnjgYYKamtq"+ "amwJ44GICmtqa2trbAnjgYoKa2pra2wJ44GLCmpramtrbAnjgY0Ka2tramwJ44GPCmpramps"+ "CeOBkQpqampqbAnjgZMKamtqa2psCeOBlQpqamtqa2wJ44GXCmpqamtqbAnjgZkKa2pqamts"+ "CeOBmwpqamprbAnjgZ0KamtsCeOBnwpra2prbAnjgaEKa2pqa2wJ44GkCmtqa2pqbAnjgaYK"+ "a2tqa2tsCeOBqApramtsCeOBqgpqa2prbAnjgasKa2tra2wJ44GsCmpqa2psCeOBrQpra2pq"+ "bAnjga4Kamtra2wJ44GvCmpqa2tqbAnjgbIKampra2wJ44G1CmtsCeOBuApqa2tsCeOBuwpq"+ "a2tqbAnjgb4Ka2tqa2psCeOBvwpqbAnjgoAKamtra2psCeOCgQpqa2tqa2wJ44KCCmtqamwJ"+ "44KECmpra2pqbAnjgoYKampsCeOCiApra2tsCeOCiQpqamtsCeOCigpqa2pqa2wJ44KLCmpq"+ "amwJ44KMCmtqa2psCeOCjQpqa2psCeOCjwpramtramwJ44KQCmtqamtrbAnjgpEKa2pqamwJ"+ "44KSCmtqa2prbAnjgpMKa2pqa2psCeODvApra2wJ44KbCmtramprbAnjgpwKa2pramtqbAnj"+ "gIEK"; // // /*
References
*/ /*
Raw Source
Whole file
CSS part
JavaScript part
Builtin data part
*/ /*
(^_^)//{Hit j k l h}
CLOSE
*/ /*
GJ Console

*/ /*
Form Auto. Filling
Location: Username: Password: SessionId:
*/ /*
BlinderText // https://w3c.github.io/uievents/#event-type-keydown // // 2020-09-21 class BlinderText - textarea element not to be readable // // BlinderText attributes // bl_plainText - null // bl_hideChecksum - [false] // bl_showLength - [false] // bl_visible - [false] // data-bl_config - [] // - min. length // - max. length // - acceptable charset in generete text // function BlinderChecksum(text){ plain = text.bl_plainText; return strCRC32(plain,plain.length).toFixed(0); } function BlinderKeydown(ev){ pass = ev.target if( ev.code == 'Enter' ){ ev.preventDefault(); } ev.stopPropagation() } function BlinderKeyup1(ev){ blind = ev.target if( ev.code == 'Backspace'){ blind.bl_plainText = blind.bl_plainText.slice(0,blind.bl_plainText.length-1) }else if( and(ev.code == 'KeyV', ev.ctrlKey) ){ blind.bl_visible = !blind.bl_visible; }else if( and(ev.code == 'KeyL', ev.ctrlKey) ){ blind.bl_showLength = !blind.bl_showLength; }else if( and(ev.code == 'KeyU', ev.ctrlKey) ){ blind.bl_plainText = ""; }else if( and(ev.code == 'KeyR', ev.ctrlKey) ){ checksum = BlinderChecksum(blind); blind.bl_plainText = checksum; //.toString(32); }else if( ev.code == 'Enter' ){ ev.stopPropagation(); ev.preventDefault(); return; }else if( ev.key.length != 1 ){ console.log('KeyUp: '+ev.code+'/'+ev.key); return; }else{ blind.bl_plainText += ev.key; } leng = blind.bl_plainText.length; //console.log('KeyUp: '+ev.code+'/'+blind.bl_plainText); checksum = BlinderChecksum(blind) % 10; // show last one digit only visual = ''; if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '['; } if( !blind.bl_hideCheckSum ){ visual += '#'+checksum.toString(10); } if( blind.bl_showLength ){ visual += '/' + leng; } if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '] '; } if( blind.bl_visible ){ visual += blind.bl_plainText; }else{ visual += '*'.repeat(leng); } blind.value = visual; } function BlinderKeyup(ev){ BlinderKeyup1(ev); ev.stopPropagation(); } // https://w3c.github.io/uievents/#keyboardevent // https://w3c.github.io/uievents/#uievent // https://dom.spec.whatwg.org/#event function BlinderTextEvent(){ ev = event; blind = ev.target; console.log('Event '+ev.type+'@'+blind.nodeName+'#'+blind.id) if( ev.type == 'keyup' ){ BlinderKeyup(ev); }else if( ev.type == 'keydown' ){ BlinderKeydown(ev); }else{ console.log('thru-event '+ev.type+'@'+blind.nodeName+'#'+blind.id) } } //< textarea hidden id="BlinderTextClassDef" class="textField"" // onkeydown="BlinderTextEvent()" onkeyup="BlinderTextEvent()" // spellcheck="false">< /textarea> //< textarea hidden id="gj_pass1" // class="textField BlinderText" // placeholder="PassWord1" // onkeydown="BlinderTextEvent()" // onkeyup="BlinderTextEvent()" // spellcheck="false"< /textarea> function SetupBlinderText(parent,txa,phold){ if( txa == null ){ txa = document.createElement('textarea'); //txa.id = id; } txa.setAttribute('class','textField BlinderText'); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','BlinderTextEvent()'); txa.setAttribute('onkeyup','BlinderTextEvent()'); txa.setAttribute('spellcheck','false'); //txa.setAttribute('bl_plainText','false'); txa.bl_plainText = ''; //parent.appendChild(txa); } function DestroyBlinderText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); txa.bl_plainText = ''; } // // visible textarea like Username // function VisibleTextEvent(){ if( event.code == 'Enter' ){ if( event.target.NoEnter ){ event.preventDefault(); } } event.stopPropagation(); } function SetupVisibleText(parent,txa,phold){ if( false ){ txa.setAttribute('class','textField VisibleText'); }else{ newclass = txa.getAttribute('class'); if( and(newclass != null, newclass != '') ){ newclass += ' '; } newclass += 'VisibleText'; txa.setAttribute('class',newclass); } //console.log('SetupVisibleText class='+txa.class); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','VisibleTextEvent()'); txa.setAttribute('onkeyup', 'VisibleTextEvent()'); txa.setAttribute('spellcheck','false'); cols = txa.getAttribute('cols'); if( cols != null ){ txa.style.width = '580px'; //console.log('VisualText#'+txa.id+' cols='+cols) }else{ //console.log('VisualText#'+txa.id+' NO cols') } rows = txa.getAttribute('rows'); if( rows != null ){ txa.style.height = '30px'; txa.style.resize = 'both'; txa.NoEnter = false; }else{ txa.NoEnter = true; } } function DestroyVisibleText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); cols = txa.removeAttribute('cols'); }
*/ /* */ // //
Golang / JavaScript Link // // 2020-0920 created // WS // WS // INSTALL: go get golang.org/x/net/websocket // INSTALL: sudo {apt,yum} install git (if git is not instlled yet) // import "golang.org/x/net/websocket" const gshws_origin = "http://locahost:9999" const gshws_server = "localhost:9999" const gshws_port = 9999 const gshws_path = "gjlink1" const gshws_url = "ws://"+gshws_server+"/"+gshws_path const GSHWS_MSGSIZE = (8*1024) func fmtstring(fmts string, params ...interface{})(string){ return fmt.Sprintf(fmts,params...) } func GSHWS_MARK(what string)(string){ now := time.Now() us := fmtstring("%06d",now.Nanosecond() / 1000) mark := "" if( !AtConsoleLineTop ){ mark += "\n" AtConsoleLineTop = true } mark += "["+now.Format(time.Stamp)+"."+us+"] -GJ-" + what + ": " return mark } func gchk(what string,err error){ if( err != nil ){ panic(GSHWS_MARK(what)+err.Error()) } } func glog(what string, fmts string, params ...interface{}){ fmt.Print(GSHWS_MARK(what)) fmt.Printf(fmts+"\n",params...) } var WSV = []*websocket.Conn{} func jsend(argv []string){ if len(argv) <= 1 { fmt.Printf("--Ij %v [-m] command arguments\n",argv[0]) return } argv = argv[1:] if( len(WSV) == 0 ){ fmt.Printf("--Ej-- No link now\n") return } if( 1 < len(WSV) ){ fmt.Printf("--Ij-- multiple links (%v)\n",len(WSV)) } multicast := false // should be filtered with regexp if( 0 < len(argv) && argv[0] == "-m" ){ multicast = true argv = argv[1:] } args := strings.Join(argv," ") now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) msg := fmtstring("%v SEND gshell|* %v",tstamp,args) if( multicast ){ for i,ws := range WSV { wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } }else{ i := 0 ws := WSV[i] wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } } func ws_broadcast(msg string)(wn int,werr error){ for i,ws := range WSV { wn,werr = ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } return wn,werr; } func serv1(ws *websocket.Conn) { WSV = append(WSV,ws) //fmt.Print("\n") glog("CO","accepted connections[%v]",len(WSV)) //remoteAddr := ws.RemoteAddr //fmt.Printf("-- accepted %v\n",remoteAddr) //fmt.Printf("-- accepted %v\n",ws.Config()) //fmt.Printf("-- accepted %v\n",ws.Config().Header) //fmt.Printf("-- accepted %v // %v\n",ws,serv1) var reqb = make([]byte,GSHWS_MSGSIZE) for { rn, rerr := ws.Read(reqb) if( rerr != nil || rn < 0 ){ glog("SQ",fmtstring("(%v,%v)",rn,rerr)) break } req := string(reqb[0:rn]) glog("SQ",fmtstring("(%v) %v",rn,req)) margv := strings.Split(req," "); margv = margv[1:] if( 0 < len(margv) ){ if( margv[0] == "RESP" ){ // should forward to the destination continue; } } now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) res := fmtstring("%v "+"CAST"+" %v",tstamp,req) wn := 0; werr := error(nil); if( 0 < len(margv) && margv[0] == "BCAST" ){ wn, werr = ws_broadcast(res); }else{ wn, werr = ws.Write([]byte(res)) } gchk("SE",werr) glog("SR",fmtstring("(%v) %v",wn,string(res))) } glog("SF","WS response finish") wsv := []*websocket.Conn{} wsx := 0 for i,v := range WSV { if( v != ws ){ wsx = i wsv = append(wsv,v) } } WSV = wsv //glog("CO","closed %v",ws) glog("CO","closed connection [%v/%v]",wsx+1,len(WSV)+1) ws.Close() } // url ::= [scheme://]host[:port][/path] func decomp_URL(url string){ } func full_wsURL(){ } func gj_server(argv []string) { gjserv := gshws_url gjport := gshws_server gjpath := gshws_path gjscheme := "ws" //cmd := argv[0] argv = argv[1:] if( 1 <= len(argv) ){ serv := argv[0] if( 0 < strings.Index(serv,"://") ){ schemev := strings.Split(serv,"://") gjscheme = schemev[0] serv = schemev[1] } if( 0 < strings.Index(serv,"/") ){ pathv := strings.Split(serv,"/") serv = pathv[0] gjpath = pathv[1] } servv := strings.Split(serv,":") host := "localhost" port := 9999 if( servv[0] != "" ){ host = servv[0] } if( len(servv) == 2 ){ fmt.Sscanf(servv[1],"%d",&port) } //glog("LC","hostport=%v (%v : %v)",servv,host,port) gjport = fmt.Sprintf("%v:%v",host,port) gjserv = gjscheme + "://" + gjport + "/" + gjpath } glog("LS",fmtstring("listening at %v",gjserv)) http.Handle("/"+gjpath,websocket.Handler(serv1)) err := error(nil) if( gjscheme == "wss" ){ // https://golang.org/pkg/net/http/#ListenAndServeTLS //err = http.ListenAndServeTLS(gjport,nil) }else{ err = http.ListenAndServe(gjport,nil) } gchk("LE",err) } func gj_client(argv []string) { glog("CS",fmtstring("connecting to %v",gshws_url)) ws, err := websocket.Dial(gshws_url,"",gshws_origin) gchk("C",err) var resb = make([]byte, GSHWS_MSGSIZE) for qi := 0; qi < 3; qi++ { req := fmtstring("Hello, GShell! (%v)",qi) wn, werr := ws.Write([]byte(req)) glog("QM",fmtstring("(%v) %v",wn,req)) gchk("QE",werr) rn, rerr := ws.Read(resb) gchk("RE",rerr) glog("RM",fmtstring("(%v) %v",rn,string(resb))) } glog("CF","WS request finish") } // //
/* */ /* */ /*
Live HTML Snapshot
*/ /*
Event sharing

Inter-window communicaiton

frame0 >>> frame1 and frame2
frame1 >>> frame0 and frame2
frame2 >>> frame0 and frame1




*/ /* // /*
Wirtual Desktop

CosmoScreen 0.0.8

ScopeControl command keys
g ... grid on/off
i ... zoom in
o ... zoom out
s ... save current scope
r ... restore saved scope

Monitor < x wall-paper: WD-WallPaler03.png

Desktop < x

Display < x < <

Content X Y shift+wheel for horizontal scroll

Scopexx < | >

Scopeyy < | >

Scopezz < | >

Display

Overflo "scroll" imprisons windows inside the display

CosmoScreen 0.0.8
00:00

WirtualSpace 1.

Reload
Reload
Reload
*/ //
// // /*
SBSidebar

SBSidebar

// 2020-1006 its-more.jp-blog-60000-style.css
*/ //
// // // /*
Affiliate

Supportive Affiliate

*/ //
// // // /*
Font Selector

Font Selection

ArialGShell-Go012GShell-Go012GShell-Go012GShell-Go012
CourierGShell-Go012GShell-Go012GShell-Go012GShell-Go012
Courier NewGShell-Go012GShell-Go012GShell-Go012GShell-Go012
GeorgiaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
HelveticaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
VerdanaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
TimesGShell-Go012GShell-Go012GShell-Go012GShell-Go012
OsakaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
MeiryoGShell-Go012GShell-Go012GShell-Go012GShell-Go012
YuMinchoGShell-Go012GShell-Go012GShell-Go012GShell-Go012
SerifGShell-Go012GShell-Go012GShell-Go012GShell-Go012
Sans-SerifGShell-Go012GShell-Go012GShell-Go012GShell-Go012
System-UIGShell-Go012GShell-Go012GShell-Go012GShell-Go012
MonospaceGShell-Go012GShell-Go012GShell-Go012GShell-Go012
CursiveGShell-Go012GShell-Go012GShell-Go012GShell-Go012
FantasyGShell-Go012GShell-Go012GShell-Go012GShell-Go012

Drawing Text on Canvas

Pixels Bold Italic

*/ //
// // // /*
Shading Canvas

Shading Canvas

Commands
Placement Mode
a ... apply (into absolute position)
j ... bring down (ArrowDown)
k ... bring up (ArrowUp)
h ... bring left (ArrowLeft)
l ... bring right (ArrowRight)
0 ... z-index = 0
+ ... z-index += 1
- ... z-index -= 1
r ... return to here (relative position)
c ... clear the log text
Note: the HTML text must be contenteditable to catch Key Event.
My Canvas.
*/ //
// // // /*
Character Map

Unicode Character Map

code 0x0000 - 0xFFFF / 16px / 3200 x 3200 px / zoom:0.25

*/ //
// // // /*
Collaborated Pointillism

Collaborated Pointillism

Share
XY1 XY1-remote XY2 XY2-remote

*/ //
// // // /*
Work Template

Template of Work

*/ //
// // // /*
Original Source

Original Source of GShell

*/ //
// //
//
//114914512 354902 gsh (2020/09/16 21:08:31)

GShell 0.6.9 − 文字コード曼陀羅

基盤:今日も目が覚めると外は暗かった。

社長:飲んで食べた後に寝ないのは体に悪いような気がするんです。

開発:で、文字コードマンダラ第一版ができました。Unicode 0x0000 - 0xFFFF ぶんです。

社長、基盤:へーっ。

基盤:生まれつき色付きの文字ってあるんですね。絵文字?

社長:ぎちぎちですね。

開発:ブラウザで200%拡大くらいしてやると、だいたい読めます。

開発:さらに拡大。

開発:ということで、例の色付き部分は案の定、絵文字であることが確認できます。

基盤:絵文字もメタフォントなんでしょうか?

開発:後ほどのお楽しみに。

社長:IMEで特殊文字とか探すのに結構苦労しますが、曼陀羅でズームイン・アウトしながらピックできると楽そうです。

開発:「よく使う文字」的な辞書を動的に作るとよいのでしょうね。

基盤:そもそもメタフォントなのに、サイズごとにavailabilityがあるというのが意味がわからないです。

開発:メタじゃないのもあるんではないですかね。

社長:しかしこれ、全フォントのロードに10秒くらいはかかるみたいなので、ブログのページにデフォで広げとくのは躊躇しますね。

開発:バックグラウンドでやれば、というか、いったんページのロードが終わってから、このマップを生成しながら逐次表示するようにすれば良いのかなと思います。進捗状況バーと、停止ボタンもつけて。

社長:遅延があるぶん、逆に見栄えがしそうな気がします。

開発:ASCII art では実のところ ASCII じゃなくてJISコードにあるキリルとかが愛用されてますよね。あ、あれはAAじゃなくて顔文字ですか。

基盤:それにしてもAA職人ってすごいですよね。そういうツールを使ってるんでしょうか?

社長:UNICODE art というのができると、ものすごく表現の幅が広がりそうです。

基盤:動くAAを描けたら面白そうですね。パラパラAAアニメ。

社長:昔ネットニュースではけっこうやってましたよ。私も一時期ハマってました。^L で区切って。

開発:今ならJavaScriptで時間調整してパラパラできますね。

基盤:CanvasとかSVGに図で書くんじゃ無いんですか?

社長:ミニマリズムの面白さですよ。どうも昨日のダメージがまだ残っているので、ちょっと飲んできます。

社長:飲みながら眺めたいのでこのページに貼っといてもらえますか。

開発:とりあえず、details を開いたら生成するようにしました。

* * *

社長:ただいぁ…

基盤:お帰りなさい。

社長:あー。食った食った。

開発:あずきを炊くとそういう音がしますよね。クッタクッタって。

社長:眠くなりました。グー…

* * *

-- 2020-1015 SatoxITS

/* GShell-0.6.9 by SatoxITS
GShell version 0.6.9 // 2020-10-15 // SatoxITS
*/ // // /*
Topbar

Topbar

*/ //
// // // /*
Indexer

Indexer

*/ //
// /*

GShell // a General purpose Shell built on the top of Golang

It is a shell for myself, by myself, of myself. --SatoxITS(^-^) prev.

Edit Save Load Vers 0 Fork Stop Unfold Digest Source
*/ /*
Statement

Fun to create a shell

For a programmer, it must be far easy and fun to create his own simple shell rightly fitting to his favor and necessities, than learning existing shells with complex full features that he never use. I, as one of programmers, am writing this tiny shell for my own real needs, totally from scratch, with fun.

For a programmer, it is fun to learn new computer languages. For long years before writing this software, I had been specialized to C and early HTML2 :-). Now writing this software, I'm learning Go language, HTML5, JavaScript and CSS on demand as a novice of these, with fun.

This single file "gsh.go", that is executable by Go, contains all of the code written in Go. Also it can be displayed as "gsh.go.html" by browsers. It is a standalone HTML file that works as the viewer of the code of itself, and as the "home page" of this software.

Because this HTML file is a Go program, you may run it as a real shell program on your computer. But you must be aware that this program is written under situation like above. Needless to say, there is no warranty for this program in any means.

Aug 2020, SatoxITS (sato@its-more.jp)
*/ /*
Features

Cross-browser communication

... to be written ...

Vi compatible command line editor

The command line of GShell can be edited with commands compatible with vi. As in vi, you can enter command mode by ESC key, then move around in the history by j k / ? n N, or within the current line by l h f w b 0 $ % or so.

*/ /*
Index
Documents Command summary Go lang part Package structures import struct Main functions str-expansion // macro processor finder // builtin find + du grep // builtin grep + wc + cksum + ... plugin // plugin commands system // external commands builtin // builtin commands network // socket handler remote-sh // remote shell redirect // StdIn/Out redireciton history // command history rusage // resouce usage encode // encode / decode IME // command line IME getline // line editor scanf // string decomposer interpreter // command interpreter main JavaScript part Source Builtin data CSS part Source References Internal External Whole parts Source Download Dump
*/ //
//Go Source
// gsh - Go lang based Shell // (c) 2020 ITS more Co., Ltd. // 2020-0807 created by SatoxITS (sato@its-more.jp) package main // gsh main // Imported packages // Packages import ( "fmt" // fmt "strings" // strings "strconv" // strconv "sort" // sort "time" // time "bufio" // bufio "io/ioutil" // ioutil "os" // os "syscall" // syscall "plugin" // plugin "net" // net "net/http" // http //"html" // html "path/filepath" // filepath "go/types" // types "go/token" // token "encoding/base64" // base64 "unicode/utf8" // utf8 //"gshdata" // gshell's logo and source code "hash/crc32" // crc32 "golang.org/x/net/websocket" ) // // 2020-0906 added, // // CGo // #include "poll.h" // // to be closed as HTML tag :-p // typedef struct { struct pollfd fdv[8]; } pollFdv; // int pollx(pollFdv *fdv, int nfds, int timeout){ // return poll(fdv->fdv,nfds,timeout); // } import "C" // // 2020-0906 added, func CFpollIn1(fp*os.File, timeoutUs int)(ready uintptr){ var fdv = C.pollFdv{} var nfds = 1 var timeout = timeoutUs/1000 fdv.fdv[0].fd = C.int(fp.Fd()) fdv.fdv[0].events = C.POLLIN if( 0 < EventRecvFd ){ fdv.fdv[1].fd = C.int(EventRecvFd) fdv.fdv[1].events = C.POLLIN nfds += 1 } r := C.pollx(&fdv,C.int(nfds),C.int(timeout)) if( r <= 0 ){ return 0 } if (int(fdv.fdv[1].revents) & int(C.POLLIN)) != 0 { //fprintf(stderr,"--De-- got Event\n"); return uintptr(EventFdOffset + fdv.fdv[1].fd) } if (int(fdv.fdv[0].revents) & int(C.POLLIN)) != 0 { return uintptr(NormalFdOffset + fdv.fdv[0].fd) } return 0 } const ( NAME = "gsh" VERSION = "0.6.9" DATE = "2020-10-15" AUTHOR = "SatoxITS(^-^)//" ) var ( GSH_HOME = ".gsh" // under home directory GSH_PORT = 9999 MaxStreamSize = int64(128*1024*1024*1024) // 128GiB is too large? PROMPT = "> " LINESIZE = (8*1024) PATHSEP = ":" // should be ";" in Windows DIRSEP = "/" // canbe \ in Windows ) // -xX logging control // --A-- all // --I-- info. // --D-- debug // --T-- time and resource usage // --W-- warning // --E-- error // --F-- fatal error // --Xn- network // Structures type GCommandHistory struct { StartAt time.Time // command line execution started at EndAt time.Time // command line execution ended at ResCode int // exit code of (external command) CmdError error // error string OutData *os.File // output of the command FoundFile []string // output - result of ufind Rusagev [2]syscall.Rusage // Resource consumption, CPU time or so CmdId int // maybe with identified with arguments or impact // redireciton commands should not be the CmdId WorkDir string // working directory at start WorkDirX int // index in ChdirHistory CmdLine string // command line } type GChdirHistory struct { Dir string MovedAt time.Time CmdIndex int } type CmdMode struct { BackGround bool } type Event struct { when time.Time event int evarg int64 CmdIndex int } var CmdIndex int var Events []Event type PluginInfo struct { Spec *plugin.Plugin Addr plugin.Symbol Name string // maybe relative Path string // this is in Plugin but hidden } type GServer struct { host string port string } // Digest const ( // SumType SUM_ITEMS = 0x000001 // items count SUM_SIZE = 0x000002 // data length (simplly added) SUM_SIZEHASH = 0x000004 // data length (hashed sequence) SUM_DATEHASH = 0x000008 // date of data (hashed sequence) // also envelope attributes like time stamp can be a part of digest // hashed value of sizes or mod-date of files will be useful to detect changes SUM_WORDS = 0x000010 // word count is a kind of digest SUM_LINES = 0x000020 // line count is a kind of digest SUM_SUM64 = 0x000040 // simple add of bytes, useful for human too SUM_SUM32_BITS = 0x000100 // the number of true bits SUM_SUM32_2BYTE = 0x000200 // 16bits words SUM_SUM32_4BYTE = 0x000400 // 32bits words SUM_SUM32_8BYTE = 0x000800 // 64bits words SUM_SUM16_BSD = 0x001000 // UNIXsum -sum -bsd SUM_SUM16_SYSV = 0x002000 // UNIXsum -sum -sysv SUM_UNIXFILE = 0x004000 SUM_CRCIEEE = 0x008000 ) type CheckSum struct { Files int64 // the number of files (or data) Size int64 // content size Words int64 // word count Lines int64 // line count SumType int Sum64 uint64 Crc32Table crc32.Table Crc32Val uint32 Sum16 int Ctime time.Time Atime time.Time Mtime time.Time Start time.Time Done time.Time RusgAtStart [2]syscall.Rusage RusgAtEnd [2]syscall.Rusage } type ValueStack [][]string type GshContext struct { StartDir string // the current directory at the start GetLine string // gsh-getline command as a input line editor ChdirHistory []GChdirHistory // the 1st entry is wd at the start gshPA syscall.ProcAttr CommandHistory []GCommandHistory CmdCurrent GCommandHistory BackGround bool BackGroundJobs []int LastRusage syscall.Rusage GshHomeDir string TerminalId int CmdTrace bool // should be [map] CmdTime bool // should be [map] PluginFuncs []PluginInfo iValues []string iDelimiter string // field sepearater of print out iFormat string // default print format (of integer) iValStack ValueStack LastServer GServer RSERV string // [gsh://]host[:port] RWD string // remote (target, there) working directory lastCheckSum CheckSum } func nsleep(ns time.Duration){ time.Sleep(ns) } func usleep(ns time.Duration){ nsleep(ns*1000) } func msleep(ns time.Duration){ nsleep(ns*1000000) } func sleep(ns time.Duration){ nsleep(ns*1000000000) } func strBegins(str, pat string)(bool){ if len(pat) <= len(str){ yes := str[0:len(pat)] == pat //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,yes) return yes } //fmt.Printf("--D-- strBegins(%v,%v)=%v\n",str,pat,false) return false } func isin(what string, list []string) bool { for _, v := range list { if v == what { return true } } return false } func isinX(what string,list[]string)(int){ for i,v := range list { if v == what { return i } } return -1 } func env(opts []string) { env := os.Environ() if isin("-s", opts){ sort.Slice(env, func(i,j int) bool { return env[i] < env[j] }) } for _, v := range env { fmt.Printf("%v\n",v) } } // - rewriting should be context dependent // - should postpone until the real point of evaluation // - should rewrite only known notation of symobl func scanInt(str string)(val int,leng int){ leng = -1 for i,ch := range str { if '0' <= ch && ch <= '9' { leng = i+1 }else{ break } } if 0 < leng { ival,_ := strconv.Atoi(str[0:leng]) return ival,leng }else{ return 0,0 } } func substHistory(gshCtx *GshContext,str string,i int,rstr string)(leng int,rst string){ if len(str[i+1:]) == 0 { return 0,rstr } hi := 0 histlen := len(gshCtx.CommandHistory) if str[i+1] == '!' { hi = histlen - 1 leng = 1 }else{ hi,leng = scanInt(str[i+1:]) if leng == 0 { return 0,rstr } if hi < 0 { hi = histlen + hi } } if 0 <= hi && hi < histlen { var ext byte if 1 < len(str[i+leng:]) { ext = str[i+leng:][1] } //fmt.Printf("--D-- %v(%c)\n",str[i+leng:],str[i+leng]) if ext == 'f' { leng += 1 xlist := []string{} list := gshCtx.CommandHistory[hi].FoundFile for _,v := range list { //list[i] = escapeWhiteSP(v) xlist = append(xlist,escapeWhiteSP(v)) } //rstr += strings.Join(list," ") rstr += strings.Join(xlist," ") }else if ext == '@' || ext == 'd' { // !N@ .. workdir at the start of the command leng += 1 rstr += gshCtx.CommandHistory[hi].WorkDir }else{ rstr += gshCtx.CommandHistory[hi].CmdLine } }else{ leng = 0 } return leng,rstr } func escapeWhiteSP(str string)(string){ if len(str) == 0 { return "\\z" // empty, to be ignored } rstr := "" for _,ch := range str { switch ch { case '\\': rstr += "\\\\" case ' ': rstr += "\\s" case '\t': rstr += "\\t" case '\r': rstr += "\\r" case '\n': rstr += "\\n" default: rstr += string(ch) } } return rstr } func unescapeWhiteSP(str string)(string){ // strip original escapes rstr := "" for i := 0; i < len(str); i++ { ch := str[i] if ch == '\\' { if i+1 < len(str) { switch str[i+1] { case 'z': continue; } } } rstr += string(ch) } return rstr } func unescapeWhiteSPV(strv []string)([]string){ // strip original escapes ustrv := []string{} for _,v := range strv { ustrv = append(ustrv,unescapeWhiteSP(v)) } return ustrv } // str-expansion // - this should be a macro processor func strsubst(gshCtx *GshContext,str string,histonly bool) string { rbuff := []byte{} if false { //@@U Unicode should be cared as a character return str } //rstr := "" inEsc := 0 // escape characer mode for i := 0; i < len(str); i++ { //fmt.Printf("--D--Subst %v:%v\n",i,str[i:]) ch := str[i] if inEsc == 0 { if ch == '!' { //leng,xrstr := substHistory(gshCtx,str,i,rstr) leng,rs := substHistory(gshCtx,str,i,"") if 0 < leng { //_,rs := substHistory(gshCtx,str,i,"") rbuff = append(rbuff,[]byte(rs)...) i += leng //rstr = xrstr continue } } switch ch { case '\\': inEsc = '\\'; continue //case '%': inEsc = '%'; continue case '$': } } switch inEsc { case '\\': switch ch { case '\\': ch = '\\' case 's': ch = ' ' case 't': ch = '\t' case 'r': ch = '\r' case 'n': ch = '\n' case 'z': inEsc = 0; continue // empty, to be ignored } inEsc = 0 case '%': switch { case ch == '%': ch = '%' case ch == 'T': //rstr = rstr + time.Now().Format(time.Stamp) rs := time.Now().Format(time.Stamp) rbuff = append(rbuff,[]byte(rs)...) inEsc = 0 continue; default: // postpone the interpretation //rstr = rstr + "%" + string(ch) rbuff = append(rbuff,ch) inEsc = 0 continue; } inEsc = 0 } //rstr = rstr + string(ch) rbuff = append(rbuff,ch) } //fmt.Printf("--D--subst(%s)(%s)\n",str,string(rbuff)) return string(rbuff) //return rstr } func showFileInfo(path string, opts []string) { if isin("-l",opts) || isin("-ls",opts) { fi, err := os.Stat(path) if err != nil { fmt.Printf("---------- ((%v))",err) }else{ mod := fi.ModTime() date := mod.Format(time.Stamp) fmt.Printf("%v %8v %s ",fi.Mode(),fi.Size(),date) } } fmt.Printf("%s",path) if isin("-sp",opts) { fmt.Printf(" ") }else if ! isin("-n",opts) { fmt.Printf("\n") } } func userHomeDir()(string,bool){ /* homedir,_ = os.UserHomeDir() // not implemented in older Golang */ homedir,found := os.LookupEnv("HOME") //fmt.Printf("--I-- HOME=%v(%v)\n",homedir,found) if !found { return "/tmp",found } return homedir,found } func toFullpath(path string) (fullpath string) { if path[0] == '/' { return path } pathv := strings.Split(path,DIRSEP) switch { case pathv[0] == ".": pathv[0], _ = os.Getwd() case pathv[0] == "..": // all ones should be interpreted cwd, _ := os.Getwd() ppathv := strings.Split(cwd,DIRSEP) pathv[0] = strings.Join(ppathv,DIRSEP) case pathv[0] == "~": pathv[0],_ = userHomeDir() default: cwd, _ := os.Getwd() pathv[0] = cwd + DIRSEP + pathv[0] } return strings.Join(pathv,DIRSEP) } func IsRegFile(path string)(bool){ fi, err := os.Stat(path) if err == nil { fm := fi.Mode() return fm.IsRegular(); } return false } // Encode / Decode // Encoder func (gshCtx *GshContext)Enc(argv[]string){ file := os.Stdin buff := make([]byte,LINESIZE) li := 0 encoder := base64.NewEncoder(base64.StdEncoding,os.Stdout) for li = 0; ; li++ { count, err := file.Read(buff) if count <= 0 { break } if err != nil { break } encoder.Write(buff[0:count]) } encoder.Close() } func (gshCtx *GshContext)Dec(argv[]string){ decoder := base64.NewDecoder(base64.StdEncoding,os.Stdin) li := 0 buff := make([]byte,LINESIZE) for li = 0; ; li++ { count, err := decoder.Read(buff) if count <= 0 { break } if err != nil { break } os.Stdout.Write(buff[0:count]) } } // lnsp [N] [-crlf][-C \\] func (gshCtx *GshContext)SplitLine(argv[]string){ strRep := isin("-str",argv) // "..."+ reader := bufio.NewReaderSize(os.Stdin,64*1024) ni := 0 toi := 0 for ni = 0; ; ni++ { line, err := reader.ReadString('\n') if len(line) <= 0 { if err != nil { fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d (%v)\n",ni,toi,err) break } } off := 0 ilen := len(line) remlen := len(line) if strRep { os.Stdout.Write([]byte("\"")) } for oi := 0; 0 < remlen; oi++ { olen := remlen addnl := false if 72 < olen { olen = 72 addnl = true } fmt.Fprintf(os.Stderr,"--D-- write %d [%d.%d] %d %d/%d/%d\n", toi,ni,oi,off,olen,remlen,ilen) toi += 1 os.Stdout.Write([]byte(line[0:olen])) if addnl { if strRep { os.Stdout.Write([]byte("\"+\n\"")) }else{ //os.Stdout.Write([]byte("\r\n")) os.Stdout.Write([]byte("\\")) os.Stdout.Write([]byte("\n")) } } line = line[olen:] off += olen remlen -= olen } if strRep { os.Stdout.Write([]byte("\"\n")) } } fmt.Fprintf(os.Stderr,"--I-- lnsp %d to %d\n",ni,toi) } // CRC32 crc32 // 1 0000 0100 1100 0001 0001 1101 1011 0111 var CRC32UNIX uint32 = uint32(0x04C11DB7) // Unix cksum var CRC32IEEE uint32 = uint32(0xEDB88320) func byteCRC32add(crc uint32,str[]byte,len uint64)(uint32){ var oi uint64 for oi = 0; oi < len; oi++ { var oct = str[oi] for bi := 0; bi < 8; bi++ { //fprintf(stderr,"--CRC32 %d %X (%d.%d)\n",crc,oct,oi,bi) ovf1 := (crc & 0x80000000) != 0 ovf2 := (oct & 0x80) != 0 ovf := (ovf1 && !ovf2) || (!ovf1 && ovf2) oct <<= 1 crc <<= 1 if ovf { crc ^= CRC32UNIX } } } //fprintf(stderr,"--CRC32 return %d %d\n",crc,len) return crc; } func byteCRC32end(crc uint32, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len) li += 1 len >>= 8 if( len == 0 ){ break } } crc = byteCRC32add(crc,slen,uint64(li)) crc ^= 0xFFFFFFFF return crc } func strCRC32(str string,len uint64)(crc uint32){ crc = byteCRC32add(0,[]byte(str),len) crc = byteCRC32end(crc,len) //fprintf(stderr,"--CRC32 %d %d\n",crc,len) return crc } func CRC32Finish(crc uint32, table *crc32.Table, len uint64)(uint32){ var slen = make([]byte,4) var li = 0 for li = 0; li < 4; { slen[li] = byte(len & 0xFF) li += 1 len >>= 8 if( len == 0 ){ break } } crc = crc32.Update(crc,table,slen) crc ^= 0xFFFFFFFF return crc } func (gsh*GshContext)xCksum(path string,argv[]string, sum*CheckSum)(int64){ if isin("-type/f",argv) && !IsRegFile(path){ return 0 } if isin("-type/d",argv) && IsRegFile(path){ return 0 } file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- cksum %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- cksum %v %v\n",path,argv) } bi := 0 var buff = make([]byte,32*1024) var total int64 = 0 var initTime = time.Time{} if sum.Start == initTime { sum.Start = time.Now() } for bi = 0; ; bi++ { count,err := file.Read(buff) if count <= 0 || err != nil { break } if (sum.SumType & SUM_SUM64) != 0 { s := sum.Sum64 for _,c := range buff[0:count] { s += uint64(c) } sum.Sum64 = s } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32add(sum.Crc32Val,buff,uint64(count)) } if (sum.SumType & SUM_CRCIEEE) != 0 { sum.Crc32Val = crc32.Update(sum.Crc32Val,&sum.Crc32Table,buff[0:count]) } // BSD checksum if (sum.SumType & SUM_SUM16_BSD) != 0 { s := sum.Sum16 for _,c := range buff[0:count] { s = (s >> 1) + ((s & 1) << 15) s += int(c) s &= 0xFFFF //fmt.Printf("BSDsum: %d[%d] %d\n",sum.Size+int64(i),i,s) } sum.Sum16 = s } if (sum.SumType & SUM_SUM16_SYSV) != 0 { for bj := 0; bj < count; bj++ { sum.Sum16 += int(buff[bj]) } } total += int64(count) } sum.Done = time.Now() sum.Files += 1 sum.Size += total if !isin("-s",argv) { fmt.Printf("%v ",total) } return 0 } // grep // "lines", "lin" or "lnp" for "(text) line processor" or "scanner" // a*,!ab,c, ... sequentioal combination of patterns // what "LINE" is should be definable // generic line-by-line processing // grep [-v] // cat -n -v // uniq [-c] // tail -f // sed s/x/y/ or awk // grep with line count like wc // rewrite contents if specified func (gsh*GshContext)xGrep(path string,rexpv[]string)(int){ file, err := os.OpenFile(path,os.O_RDONLY,0) if err != nil { fmt.Printf("--E-- grep %v (%v)\n",path,err) return -1 } defer file.Close() if gsh.CmdTrace { fmt.Printf("--I-- grep %v %v\n",path,rexpv) } //reader := bufio.NewReaderSize(file,LINESIZE) reader := bufio.NewReaderSize(file,80) li := 0 found := 0 for li = 0; ; li++ { line, err := reader.ReadString('\n') if len(line) <= 0 { break } if 150 < len(line) { // maybe binary break; } if err != nil { break } if 0 <= strings.Index(string(line),rexpv[0]) { found += 1 fmt.Printf("%s:%d: %s",path,li,line) } } //fmt.Printf("total %d lines %s\n",li,path) //if( 0 < found ){ fmt.Printf("((found %d lines %s))\n",found,path); } return found } // Finder // finding files with it name and contents // file names are ORed // show the content with %x fmt list // ls -R // tar command by adding output type fileSum struct { Err int64 // access error or so Size int64 // content size DupSize int64 // content size from hard links Blocks int64 // number of blocks (of 512 bytes) DupBlocks int64 // Blocks pointed from hard links HLinks int64 // hard links Words int64 Lines int64 Files int64 Dirs int64 // the num. of directories SymLink int64 Flats int64 // the num. of flat files MaxDepth int64 MaxNamlen int64 // max. name length nextRepo time.Time } func showFusage(dir string,fusage *fileSum){ bsume := float64(((fusage.Blocks-fusage.DupBlocks)/2)*1024)/1000000.0 //bsumdup := float64((fusage.Blocks/2)*1024)/1000000.0 fmt.Printf("%v: %v files (%vd %vs %vh) %.6f MB (%.2f MBK)\n", dir, fusage.Files, fusage.Dirs, fusage.SymLink, fusage.HLinks, float64(fusage.Size)/1000000.0,bsume); } const ( S_IFMT = 0170000 S_IFCHR = 0020000 S_IFDIR = 0040000 S_IFREG = 0100000 S_IFLNK = 0120000 S_IFSOCK = 0140000 ) func cumFinfo(fsum *fileSum, path string, staterr error, fstat syscall.Stat_t, argv[]string,verb bool)(*fileSum){ now := time.Now() if time.Second <= now.Sub(fsum.nextRepo) { if !fsum.nextRepo.IsZero(){ tstmp := now.Format(time.Stamp) showFusage(tstmp,fsum) } fsum.nextRepo = now.Add(time.Second) } if staterr != nil { fsum.Err += 1 return fsum } fsum.Files += 1 if 1 < fstat.Nlink { // must count only once... // at least ignore ones in the same directory //if finfo.Mode().IsRegular() { if (fstat.Mode & S_IFMT) == S_IFREG { fsum.HLinks += 1 fsum.DupBlocks += int64(fstat.Blocks) //fmt.Printf("---Dup HardLink %v %s\n",fstat.Nlink,path) } } //fsum.Size += finfo.Size() fsum.Size += fstat.Size fsum.Blocks += int64(fstat.Blocks) //if verb { fmt.Printf("(%8dBlk) %s",fstat.Blocks/2,path) } if isin("-ls",argv){ //if verb { fmt.Printf("%4d %8d ",fstat.Blksize,fstat.Blocks) } // fmt.Printf("%d\t",fstat.Blocks/2) } //if finfo.IsDir() if (fstat.Mode & S_IFMT) == S_IFDIR { fsum.Dirs += 1 } //if (finfo.Mode() & os.ModeSymlink) != 0 if (fstat.Mode & S_IFMT) == S_IFLNK { //if verb { fmt.Printf("symlink(%v,%s)\n",fstat.Mode,finfo.Name()) } //{ fmt.Printf("symlink(%o,%s)\n",fstat.Mode,finfo.Name()) } fsum.SymLink += 1 } return fsum } func (gsh*GshContext)xxFindEntv(depth int,total *fileSum,dir string, dstat syscall.Stat_t, ei int, entv []string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) // sort entv /* if isin("-t",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].ModTime().Sub(filev[j].ModTime()) }) } */ /* if isin("-u",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].AccTime().Sub(filev[j].AccTime()) }) } if isin("-U",argv){ sort.Slice(filev, func(i,j int) bool { return 0 < filev[i].CreatTime().Sub(filev[j].CreatTime()) }) } */ /* if isin("-S",argv){ sort.Slice(filev, func(i,j int) bool { return filev[j].Size() < filev[i].Size() }) } */ for _,filename := range entv { for _,npat := range npatv { match := true if npat == "*" { match = true }else{ match, _ = filepath.Match(npat,filename) } path := dir + DIRSEP + filename if !match { continue } var fstat syscall.Stat_t staterr := syscall.Lstat(path,&fstat) if staterr != nil { if !isin("-w",argv){fmt.Printf("ufind: %v\n",staterr) } continue; } if isin("-du",argv) && (fstat.Mode & S_IFMT) == S_IFDIR { // should not show size of directory in "-du" mode ... }else if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { if isin("-du",argv) { fmt.Printf("%d\t",fstat.Blocks/2) } showFileInfo(path,argv) } if true { // && isin("-du",argv) total = cumFinfo(total,path,staterr,fstat,argv,false) } /* if isin("-wc",argv) { } */ if gsh.lastCheckSum.SumType != 0 { gsh.xCksum(path,argv,&gsh.lastCheckSum); } x := isinX("-grep",argv); // -grep will be convenient like -ls if 0 <= x && x+1 <= len(argv) { // -grep will be convenient like -ls if IsRegFile(path){ found := gsh.xGrep(path,argv[x+1:]) if 0 < found { foundv := gsh.CmdCurrent.FoundFile if len(foundv) < 10 { gsh.CmdCurrent.FoundFile = append(gsh.CmdCurrent.FoundFile,path) } } } } if !isin("-r0",argv) { // -d 0 in du, -depth n in find //total.Depth += 1 if (fstat.Mode & S_IFMT) == S_IFLNK { continue } if dstat.Rdev != fstat.Rdev { fmt.Printf("--I-- don't follow differnet device %v(%v) %v(%v)\n", dir,dstat.Rdev,path,fstat.Rdev) } if (fstat.Mode & S_IFMT) == S_IFDIR { total = gsh.xxFind(depth+1,total,path,npatv,argv) } } } } return total } func (gsh*GshContext)xxFind(depth int,total *fileSum,dir string,npatv[]string,argv[]string)(*fileSum){ nols := isin("-grep",argv) dirfile,oerr := os.OpenFile(dir,os.O_RDONLY,0) if oerr == nil { //fmt.Printf("--I-- %v(%v)[%d]\n",dir,dirfile,dirfile.Fd()) defer dirfile.Close() }else{ } prev := *total var dstat syscall.Stat_t staterr := syscall.Lstat(dir,&dstat) // should be flstat if staterr != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",staterr) } return total } //filev,err := ioutil.ReadDir(dir) //_,err := ioutil.ReadDir(dir) // ReadDir() heavy and bad for huge directory /* if err != nil { if !isin("-w",argv){ fmt.Printf("ufind: %v\n",err) } return total } */ if depth == 0 { total = cumFinfo(total,dir,staterr,dstat,argv,true) if !nols && !isin("-s",argv) && (!isin("-du",argv) || isin("-a",argv)) { showFileInfo(dir,argv) } } // it it is not a directory, just scan it and finish for ei := 0; ; ei++ { entv,rderr := dirfile.Readdirnames(8*1024) if len(entv) == 0 || rderr != nil { //if rderr != nil { fmt.Printf("[%d] len=%d (%v)\n",ei,len(entv),rderr) } break } if 0 < ei { fmt.Printf("--I-- xxFind[%d] %d large-dir: %s\n",ei,len(entv),dir) } total = gsh.xxFindEntv(depth,total,dir,dstat,ei,entv,npatv,argv) } if isin("-du",argv) { // if in "du" mode fmt.Printf("%d\t%s\n",(total.Blocks-prev.Blocks)/2,dir) } return total } // {ufind|fu|ls} [Files] [// Names] [-- Expressions] // Files is "." by default // Names is "*" by default // Expressions is "-print" by default for "ufind", or -du for "fu" command func (gsh*GshContext)xFind(argv[]string){ if 0 < len(argv) && strBegins(argv[0],"?"){ showFound(gsh,argv) return } if isin("-cksum",argv) || isin("-sum",argv) { gsh.lastCheckSum = CheckSum{} if isin("-sum",argv) && isin("-add",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 }else if isin("-sum",argv) && isin("-size",argv) { gsh.lastCheckSum.SumType |= SUM_SIZE }else if isin("-sum",argv) && isin("-bsd",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_BSD }else if isin("-sum",argv) && isin("-sysv",argv) { gsh.lastCheckSum.SumType |= SUM_SUM16_SYSV }else if isin("-sum",argv) { gsh.lastCheckSum.SumType |= SUM_SUM64 } if isin("-unix",argv) { gsh.lastCheckSum.SumType |= SUM_UNIXFILE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32UNIX) } if isin("-ieee",argv){ gsh.lastCheckSum.SumType |= SUM_CRCIEEE gsh.lastCheckSum.Crc32Table = *crc32.MakeTable(CRC32IEEE) } gsh.lastCheckSum.RusgAtStart = Getrusagev() } var total = fileSum{} npats := []string{} for _,v := range argv { if 0 < len(v) && v[0] != '-' { npats = append(npats,v) } if v == "//" { break } if v == "--" { break } if v == "-grep" { break } if v == "-ls" { break } } if len(npats) == 0 { npats = []string{"*"} } cwd := "." // if to be fullpath ::: cwd, _ := os.Getwd() if len(npats) == 0 { npats = []string{"*"} } fusage := gsh.xxFind(0,&total,cwd,npats,argv) if gsh.lastCheckSum.SumType != 0 { var sumi uint64 = 0 sum := &gsh.lastCheckSum if (sum.SumType & SUM_SIZE) != 0 { sumi = uint64(sum.Size) } if (sum.SumType & SUM_SUM64) != 0 { sumi = sum.Sum64 } if (sum.SumType & SUM_SUM16_SYSV) != 0 { s := uint32(sum.Sum16) r := (s & 0xFFFF) + ((s & 0xFFFFFFFF) >> 16) s = (r & 0xFFFF) + (r >> 16) sum.Crc32Val = uint32(s) sumi = uint64(s) } if (sum.SumType & SUM_SUM16_BSD) != 0 { sum.Crc32Val = uint32(sum.Sum16) sumi = uint64(sum.Sum16) } if (sum.SumType & SUM_UNIXFILE) != 0 { sum.Crc32Val = byteCRC32end(sum.Crc32Val,uint64(sum.Size)) sumi = uint64(byteCRC32end(sum.Crc32Val,uint64(sum.Size))) } if 1 < sum.Files { fmt.Printf("%v %v // %v / %v files, %v/file\r\n", sumi,sum.Size, abssize(sum.Size),sum.Files, abssize(sum.Size/sum.Files)) }else{ fmt.Printf("%v %v %v\n", sumi,sum.Size,npats[0]) } } if !isin("-grep",argv) { showFusage("total",fusage) } if !isin("-s",argv){ hits := len(gsh.CmdCurrent.FoundFile) if 0 < hits { fmt.Printf("--I-- %d files hits // can be refered with !%df\n", hits,len(gsh.CommandHistory)) } } if gsh.lastCheckSum.SumType != 0 { if isin("-ru",argv) { sum := &gsh.lastCheckSum sum.Done = time.Now() gsh.lastCheckSum.RusgAtEnd = Getrusagev() elps := sum.Done.Sub(sum.Start) fmt.Printf("--cksum-size: %v (%v) / %v files, %v/file\r\n", sum.Size,abssize(sum.Size),sum.Files,abssize(sum.Size/sum.Files)) nanos := int64(elps) fmt.Printf("--cksum-time: %v/total, %v/file, %.1f files/s, %v\r\n", abbtime(nanos), abbtime(nanos/sum.Files), (float64(sum.Files)*1000000000.0)/float64(nanos), abbspeed(sum.Size,nanos)) diff := RusageSubv(sum.RusgAtEnd,sum.RusgAtStart) fmt.Printf("--cksum-rusg: %v\n",sRusagef("",argv,diff)) } } return } func showFiles(files[]string){ sp := "" for i,file := range files { if 0 < i { sp = " " } else { sp = "" } fmt.Printf(sp+"%s",escapeWhiteSP(file)) } } func showFound(gshCtx *GshContext, argv[]string){ for i,v := range gshCtx.CommandHistory { if 0 < len(v.FoundFile) { fmt.Printf("!%d (%d) ",i,len(v.FoundFile)) if isin("-ls",argv){ fmt.Printf("\n") for _,file := range v.FoundFile { fmt.Printf("") //sub number? showFileInfo(file,argv) } }else{ showFiles(v.FoundFile) fmt.Printf("\n") } } } } func showMatchFile(filev []os.FileInfo, npat,dir string, argv[]string)(string,bool){ fname := "" found := false for _,v := range filev { match, _ := filepath.Match(npat,(v.Name())) if match { fname = v.Name() found = true //fmt.Printf("[%d] %s\n",i,v.Name()) showIfExecutable(fname,dir,argv) } } return fname,found } func showIfExecutable(name,dir string,argv[]string)(ffullpath string,ffound bool){ var fullpath string if strBegins(name,DIRSEP){ fullpath = name }else{ fullpath = dir + DIRSEP + name } fi, err := os.Stat(fullpath) if err != nil { fullpath = dir + DIRSEP + name + ".go" fi, err = os.Stat(fullpath) } if err == nil { fm := fi.Mode() if fm.IsRegular() { // R_OK=4, W_OK=2, X_OK=1, F_OK=0 if syscall.Access(fullpath,5) == nil { ffullpath = fullpath ffound = true if ! isin("-s", argv) { showFileInfo(fullpath,argv) } } } } return ffullpath, ffound } func which(list string, argv []string) (fullpathv []string, itis bool){ if len(argv) <= 1 { fmt.Printf("Usage: which comand [-s] [-a] [-ls]\n") return []string{""}, false } path := argv[1] if strBegins(path,"/") { // should check if excecutable? _,exOK := showIfExecutable(path,"/",argv) fmt.Printf("--D-- %v exOK=%v\n",path,exOK) return []string{path},exOK } pathenv, efound := os.LookupEnv(list) if ! efound { fmt.Printf("--E-- which: no \"%s\" environment\n",list) return []string{""}, false } showall := isin("-a",argv) || 0 <= strings.Index(path,"*") dirv := strings.Split(pathenv,PATHSEP) ffound := false ffullpath := path for _, dir := range dirv { if 0 <= strings.Index(path,"*") { // by wild-card list,_ := ioutil.ReadDir(dir) ffullpath, ffound = showMatchFile(list,path,dir,argv) }else{ ffullpath, ffound = showIfExecutable(path,dir,argv) } //if ffound && !isin("-a", argv) { if ffound && !showall { break; } } return []string{ffullpath}, ffound } func stripLeadingWSParg(argv[]string)([]string){ for ; 0 < len(argv); { if len(argv[0]) == 0 { argv = argv[1:] }else{ break } } return argv } func xEval(argv []string, nlend bool){ argv = stripLeadingWSParg(argv) if len(argv) == 0 { fmt.Printf("eval [%%format] [Go-expression]\n") return } pfmt := "%v" if argv[0][0] == '%' { pfmt = argv[0] argv = argv[1:] } if len(argv) == 0 { return } gocode := strings.Join(argv," "); //fmt.Printf("eval [%v] [%v]\n",pfmt,gocode) fset := token.NewFileSet() rval, _ := types.Eval(fset,nil,token.NoPos,gocode) fmt.Printf(pfmt,rval.Value) if nlend { fmt.Printf("\n") } } func getval(name string) (found bool, val int) { /* should expand the name here */ if name == "gsh.pid" { return true, os.Getpid() }else if name == "gsh.ppid" { return true, os.Getppid() } return false, 0 } func echo(argv []string, nlend bool){ for ai := 1; ai < len(argv); ai++ { if 1 < ai { fmt.Printf(" "); } arg := argv[ai] found, val := getval(arg) if found { fmt.Printf("%d",val) }else{ fmt.Printf("%s",arg) } } if nlend { fmt.Printf("\n"); } } func resfile() string { return "gsh.tmp" } //var resF *File func resmap() { //_ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, os.ModeAppend) // https://developpaper.com/solution-to-golang-bad-file-descriptor-problem/ _ , err := os.OpenFile(resfile(), os.O_RDWR|os.O_CREATE, 0600) if err != nil { fmt.Printf("refF could not open: %s\n",err) }else{ fmt.Printf("refF opened\n") } } // @@2020-0821 func gshScanArg(str string,strip int)(argv []string){ var si = 0 var sb = 0 var inBracket = 0 var arg1 = make([]byte,LINESIZE) var ax = 0 debug := false for ; si < len(str); si++ { if str[si] != ' ' { break } } sb = si for ; si < len(str); si++ { if sb <= si { if debug { fmt.Printf("--Da- +%d %2d-%2d %s ... %s\n", inBracket,sb,si,arg1[0:ax],str[si:]) } } ch := str[si] if ch == '{' { inBracket += 1 if 0 < strip && inBracket <= strip { //fmt.Printf("stripLEV %d <= %d?\n",inBracket,strip) continue } } if 0 < inBracket { if ch == '}' { inBracket -= 1 if 0 < strip && inBracket < strip { //fmt.Printf("stripLEV %d < %d?\n",inBracket,strip) continue } } arg1[ax] = ch ax += 1 continue } if str[si] == ' ' { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,str[sb:si],string(str[si:])) } sb = si+1 ax = 0 continue } arg1[ax] = ch ax += 1 } if sb < si { argv = append(argv,string(arg1[0:ax])) if debug { fmt.Printf("--Da- [%v][%v-%v] %s ... %s\n", -1+len(argv),sb,si,string(arg1[0:ax]),string(str[si:])) } } if debug { fmt.Printf("--Da- %d [%s] => [%d]%v\n",strip,str,len(argv),argv) } return argv } // should get stderr (into tmpfile ?) and return func (gsh*GshContext)Popen(name,mode string)(pin*os.File,pout*os.File,err bool){ var pv = []int{-1,-1} syscall.Pipe(pv) xarg := gshScanArg(name,1) name = strings.Join(xarg," ") pin = os.NewFile(uintptr(pv[0]),"StdoutOf-{"+name+"}") pout = os.NewFile(uintptr(pv[1]),"StdinOf-{"+name+"}") fdix := 0 dir := "?" if mode == "r" { dir = "<" fdix = 1 // read from the stdout of the process }else{ dir = ">" fdix = 0 // write to the stdin of the process } gshPA := gsh.gshPA savfd := gshPA.Files[fdix] var fd uintptr = 0 if mode == "r" { fd = pout.Fd() gshPA.Files[fdix] = pout.Fd() }else{ fd = pin.Fd() gshPA.Files[fdix] = pin.Fd() } // should do this by Goroutine? if false { fmt.Printf("--Ip- Opened fd[%v] %s %v\n",fd,dir,name) fmt.Printf("--RED1 [%d,%d,%d]->[%d,%d,%d]\n", os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd(), pin.Fd(),pout.Fd(),pout.Fd()) } savi := os.Stdin savo := os.Stdout save := os.Stderr os.Stdin = pin os.Stdout = pout os.Stderr = pout gsh.BackGround = true gsh.gshelllh(name) gsh.BackGround = false os.Stdin = savi os.Stdout = savo os.Stderr = save gshPA.Files[fdix] = savfd return pin,pout,false } // External commands func (gsh*GshContext)excommand(exec bool, argv []string) (notf bool,exit bool) { if gsh.CmdTrace { fmt.Printf("--I-- excommand[%v](%v)\n",exec,argv) } gshPA := gsh.gshPA fullpathv, itis := which("PATH",[]string{"which",argv[0],"-s"}) if itis == false { return true,false } fullpath := fullpathv[0] argv = unescapeWhiteSPV(argv) if 0 < strings.Index(fullpath,".go") { nargv := argv // []string{} gofullpathv, itis := which("PATH",[]string{"which","go","-s"}) if itis == false { fmt.Printf("--F-- Go not found\n") return false,true } gofullpath := gofullpathv[0] nargv = []string{ gofullpath, "run", fullpath } fmt.Printf("--I-- %s {%s %s %s}\n",gofullpath, nargv[0],nargv[1],nargv[2]) if exec { syscall.Exec(gofullpath,nargv,os.Environ()) }else{ pid, _ := syscall.ForkExec(gofullpath,nargv,&gshPA) if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),nargv) gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) }else{ rusage := syscall.Rusage {} syscall.Wait4(pid,nil,0,&rusage) gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage } } }else{ if exec { syscall.Exec(fullpath,argv,os.Environ()) }else{ pid, _ := syscall.ForkExec(fullpath,argv,&gshPA) //fmt.Printf("[%d]\n",pid); // '&' to be background if gsh.BackGround { fmt.Fprintf(stderr,"--Ip- in Background pid[%d]%d(%v)\n",pid,len(argv),argv) gsh.BackGroundJobs = append(gsh.BackGroundJobs,pid) }else{ rusage := syscall.Rusage {} syscall.Wait4(pid,nil,0,&rusage); gsh.LastRusage = rusage gsh.CmdCurrent.Rusagev[1] = rusage } } } return false,false } // Builtin Commands func (gshCtx *GshContext) sleep(argv []string) { if len(argv) < 2 { fmt.Printf("Sleep 100ms, 100us, 100ns, ...\n") return } duration := argv[1]; d, err := time.ParseDuration(duration) if err != nil { d, err = time.ParseDuration(duration+"s") if err != nil { fmt.Printf("duration ? %s (%s)\n",duration,err) return } } //fmt.Printf("Sleep %v\n",duration) time.Sleep(d) if 0 < len(argv[2:]) { gshCtx.gshellv(argv[2:]) } } func (gshCtx *GshContext)repeat(argv []string) { if len(argv) < 2 { return } start0 := time.Now() for ri,_ := strconv.Atoi(argv[1]); 0 < ri; ri-- { if 0 < len(argv[2:]) { //start := time.Now() gshCtx.gshellv(argv[2:]) end := time.Now() elps := end.Sub(start0); if( 1000000000 < elps ){ fmt.Printf("(repeat#%d %v)\n",ri,elps); } } } } func (gshCtx *GshContext)gen(argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: %s N\n",argv[0]) return } // should br repeated by "repeat" command count, _ := strconv.Atoi(argv[1]) fd := gshPA.Files[1] // Stdout file := os.NewFile(fd,"internalStdOut") fmt.Printf("--I-- Gen. Count=%d to [%d]\n",count,file.Fd()) //buf := []byte{} outdata := "0123 5678 0123 5678 0123 5678 0123 5678\r" for gi := 0; gi < count; gi++ { file.WriteString(outdata) } //file.WriteString("\n") fmt.Printf("\n(%d B)\n",count*len(outdata)); //file.Close() } // Remote Execution // 2020-0820 func Elapsed(from time.Time)(string){ elps := time.Now().Sub(from) if 1000000000 < elps { return fmt.Sprintf("[%5d.%02ds]",elps/1000000000,(elps%1000000000)/10000000) }else if 1000000 < elps { return fmt.Sprintf("[%3d.%03dms]",elps/1000000,(elps%1000000)/1000) }else{ return fmt.Sprintf("[%3d.%03dus]",elps/1000,(elps%1000)) } } func abbtime(nanos int64)(string){ if 1000000000 < nanos { return fmt.Sprintf("%d.%02ds",nanos/1000000000,(nanos%1000000000)/10000000) }else if 1000000 < nanos { return fmt.Sprintf("%d.%03dms",nanos/1000000,(nanos%1000000)/1000) }else{ return fmt.Sprintf("%d.%03dus",nanos/1000,(nanos%1000)) } } func abssize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%.3fKiB",fsize/1024) } } func absize(size int64)(string){ fsize := float64(size) if 1024*1024*1024 < size { return fmt.Sprintf("%8.2fGiB",fsize/(1024*1024*1024)) }else if 1024*1024 < size { return fmt.Sprintf("%8.3fMiB",fsize/(1024*1024)) }else{ return fmt.Sprintf("%8.3fKiB",fsize/1024) } } func abbspeed(totalB int64,ns int64)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGB/s",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMB/s",MBs) }else{ return fmt.Sprintf("%6.3fKB/s",MBs*1000) } } func abspeed(totalB int64,ns time.Duration)(string){ MBs := (float64(totalB)/1000000) / (float64(ns)/1000000000) if 1000 <= MBs { return fmt.Sprintf("%6.3fGBps",MBs/1000) } if 1 <= MBs { return fmt.Sprintf("%6.3fMBps",MBs) }else{ return fmt.Sprintf("%6.3fKBps",MBs*1000) } } func fileRelay(what string,in*os.File,out*os.File,size int64,bsiz int)(wcount int64){ Start := time.Now() buff := make([]byte,bsiz) var total int64 = 0 var rem int64 = size nio := 0 Prev := time.Now() var PrevSize int64 = 0 fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) START\n", what,absize(total),size,nio) for i:= 0; ; i++ { var len = bsiz if int(rem) < len { len = int(rem) } Now := time.Now() Elps := Now.Sub(Prev); if 1000000000 < Now.Sub(Prev) { fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %s\n", what,absize(total),size,nio, abspeed((total-PrevSize),Elps)) Prev = Now; PrevSize = total } rlen := len if in != nil { // should watch the disconnection of out rcc,err := in.Read(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"--En- X: %s read(%v,%v)<%v\n", what,rcc,err,in.Name()) break } rlen = rcc if string(buff[0:10]) == "((SoftEOF " { var ecc int64 = 0 fmt.Sscanf(string(buff),"((SoftEOF %v",&ecc) fmt.Printf(Elapsed(Start)+"--En- X: %s Recv ((SoftEOF %v))/%v\n", what,ecc,total) if ecc == total { break } } } wlen := rlen if out != nil { wcc,err := out.Write(buff[0:rlen]) if err != nil { fmt.Printf(Elapsed(Start)+"-En-- X: %s write(%v,%v)>%v\n", what,wcc,err,out.Name()) break } wlen = wcc } if wlen < rlen { fmt.Printf(Elapsed(Start)+"--En- X: %s incomplete write (%v/%v)\n", what,wlen,rlen) break; } nio += 1 total += int64(rlen) rem -= int64(rlen) if rem <= 0 { break } } Done := time.Now() Elps := float64(Done.Sub(Start))/1000000000 //Seconds TotalMB := float64(total)/1000000 //MB MBps := TotalMB / Elps fmt.Printf(Elapsed(Start)+"--In- X: %s (%v/%v/%v) %v %.3fMB/s\n", what,total,size,nio,absize(total),MBps) return total } func tcpPush(clnt *os.File){ // shrink socket buffer and recover usleep(100); } func (gsh*GshContext)RexecServer(argv[]string){ debug := true Start0 := time.Now() Start := Start0 // if local == ":" { local = "0.0.0.0:9999" } local := "0.0.0.0:9999" if 0 < len(argv) { if argv[0] == "-s" { debug = false argv = argv[1:] } } if 0 < len(argv) { argv = argv[1:] } port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("--En- S: Address error: %s (%s)\n",local,err) return } fmt.Printf(Elapsed(Start)+"--In- S: Listening at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Listen error: %s (%s)\n",local,err) return } reqbuf := make([]byte,LINESIZE) res := "" for { fmt.Printf(Elapsed(Start0)+"--In- S: Listening at %s...\n",local); aconn, err := sconn.AcceptTCP() Start = time.Now() if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: Accept error: %s (%s)\n",local,err) return } clnt, _ := aconn.File() fd := clnt.Fd() ar := aconn.RemoteAddr() if debug { fmt.Printf(Elapsed(Start0)+"--In- S: Accepted TCP at %s [%d] <- %v\n", local,fd,ar) } res = fmt.Sprintf("220 GShell/%s Server\r\n",VERSION) fmt.Fprintf(clnt,"%s",res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %s",res) } count, err := clnt.Read(reqbuf) if err != nil { fmt.Printf(Elapsed(Start)+"--En- C: (%v %v) %v", count,err,string(reqbuf)) } req := string(reqbuf[:count]) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",string(req)) } reqv := strings.Split(string(req),"\r") cmdv := gshScanArg(reqv[0],0) //cmdv := strings.Split(reqv[0]," ") switch cmdv[0] { case "HELO": res = fmt.Sprintf("250 %v",req) case "GET": // download {remotefile|-zN} [localfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var in *os.File = nil var pseudoEOF = false if 1 < len(cmdv) { fname = cmdv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() in = xin dsize = MaxStreamSize pseudoEOF = true } }else{ xin,err := os.Open(fname) if err != nil { fmt.Printf("--En- GET (%v)\n",err) }else{ defer xin.Close() in = xin fi,_ := xin.Stat() dsize = fi.Size() } } } //fmt.Printf(Elapsed(Start)+"--In- GET %v:%v\n",dsize,bsize) res = fmt.Sprintf("200 %v\r\n",dsize) fmt.Fprintf(clnt,"%v",res) tcpPush(clnt); // should be separated as line in receiver fmt.Printf(Elapsed(Start)+"--In- S: %v",res) wcount := fileRelay("SendGET",in,clnt,dsize,bsize) if pseudoEOF { in.Close() // pipe from the command // show end of stream data (its size) by OOB? SoftEOF := fmt.Sprintf("((SoftEOF %v))",wcount) fmt.Printf(Elapsed(Start)+"--In- S: Send %v\n",SoftEOF) tcpPush(clnt); // to let SoftEOF data apper at the top of recevied data fmt.Fprintf(clnt,"%v\r\n",SoftEOF) tcpPush(clnt); // to let SoftEOF alone in a packet (separate with 200 OK) // with client generated random? //fmt.Printf("--In- L: close %v (%v)\n",in.Fd(),in.Name()) } res = fmt.Sprintf("200 GET done\r\n") case "PUT": // upload {srcfile|-zN} [dstfile] var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var fname string = "" var out *os.File = nil if 1 < len(cmdv) { // localfile fmt.Sscanf(cmdv[1],"%d",&dsize) } if 2 < len(cmdv) { fname = cmdv[2] if fname == "-" { // nul dev }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) //fmt.Printf("--In- S: open(%v) out(%v) err(%v)\n",fname,xout,err) if err != nil { fmt.Printf("--En- PUT (%v)\n",err) }else{ out = xout } } fmt.Printf(Elapsed(Start)+"--In- L: open(%v,w) %v (%v)\n", fname,local,err) } fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) fmt.Printf(Elapsed(Start)+"--In- S: 200 %v OK\r\n",dsize) fmt.Fprintf(clnt,"200 %v OK\r\n",dsize) fileRelay("RecvPUT",clnt,out,dsize,bsize) res = fmt.Sprintf("200 PUT done\r\n") default: res = fmt.Sprintf("400 What? %v",req) } swcc,serr := clnt.Write([]byte(res)) if serr != nil { fmt.Printf(Elapsed(Start)+"--In- S: (wc=%v er=%v) %v",swcc,serr,res) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",res) } aconn.Close(); clnt.Close(); } sconn.Close(); } func (gsh*GshContext)RexecClient(argv[]string)(int,string){ debug := true Start := time.Now() if len(argv) == 1 { return -1,"EmptyARG" } argv = argv[1:] if argv[0] == "-serv" { gsh.RexecServer(argv[1:]) return 0,"Server" } remote := "0.0.0.0:9999" if argv[0][0] == '@' { remote = argv[0][1:] argv = argv[1:] } if argv[0] == "-s" { debug = false argv = argv[1:] } dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf(Elapsed(Start)+"Address error: %s (%s)\n",remote,err) return -1,"AddressError" } fmt.Printf(Elapsed(Start)+"--In- C: Connecting to %s\n",remote) serv, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf(Elapsed(Start)+"Connection error: %s (%s)\n",remote,err) return -1,"CannotConnect" } if debug { al := serv.LocalAddr() fmt.Printf(Elapsed(Start)+"--In- C: Connected to %v <- %v\n",remote,al) } req := "" res := make([]byte,LINESIZE) count,err := serv.Read(res) if err != nil { fmt.Printf("--En- S: (%3d,%v) %v",count,err,string(res)) } if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res)) } if argv[0] == "GET" { savPA := gsh.gshPA var bsize int = 64*1024 req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) fmt.Printf(Elapsed(Start)+"--In- C: %v",req) fmt.Fprintf(serv,req) count,err = serv.Read(res) if err != nil { }else{ var dsize int64 = 0 var out *os.File = nil var out_tobeclosed *os.File = nil var fname string = "" var rcode int = 0 var pid int = -1 fmt.Sscanf(string(res),"%d %d",&rcode,&dsize) fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) if 3 <= len(argv) { fname = argv[2] if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"w") if err { }else{ xin.Close() defer xout.Close() out = xout out_tobeclosed = xout pid = 0 // should be its pid } }else{ // should write to temporary file // should suppress ^C on tty xout,err := os.OpenFile(fname,os.O_CREATE|os.O_RDWR|os.O_TRUNC,0600) if err != nil { fmt.Print("--En- %v\n",err) } out = xout //fmt.Printf("--In-- %d > %s\n",out.Fd(),fname) } } in,_ := serv.File() fileRelay("RecvGET",in,out,dsize,bsize) if 0 <= pid { gsh.gshPA = savPA // recovery of Fd(), and more? fmt.Printf(Elapsed(Start)+"--In- L: close Pipe > %v\n",fname) out_tobeclosed.Close() //syscall.Wait4(pid,nil,0,nil) //@@ } } }else if argv[0] == "PUT" { remote, _ := serv.File() var local *os.File = nil var dsize int64 = 32*1024*1024 var bsize int = 64*1024 var ofile string = "-" //fmt.Printf("--I-- Rex %v\n",argv) if 1 < len(argv) { fname := argv[1] if strBegins(fname,"-z") { fmt.Sscanf(fname[2:],"%d",&dsize) }else if strBegins(fname,"{") { xin,xout,err := gsh.Popen(fname,"r") if err { }else{ xout.Close() defer xin.Close() //in = xin local = xin fmt.Printf("--In- [%d] < Upload output of %v\n", local.Fd(),fname) ofile = "-from."+fname dsize = MaxStreamSize } }else{ xlocal,err := os.Open(fname) if err != nil { fmt.Printf("--En- (%s)\n",err) local = nil }else{ local = xlocal fi,_ := local.Stat() dsize = fi.Size() defer local.Close() //fmt.Printf("--I-- Rex in(%v / %v)\n",ofile,dsize) } ofile = fname fmt.Printf(Elapsed(Start)+"--In- L: open(%v,r)=%v %v (%v)\n", fname,dsize,local,err) } } if 2 < len(argv) && argv[2] != "" { ofile = argv[2] //fmt.Printf("(%d)%v B.ofile=%v\n",len(argv),argv,ofile) } //fmt.Printf(Elapsed(Start)+"--I-- Rex out(%v)\n",ofile) fmt.Printf(Elapsed(Start)+"--In- PUT %v (/%v)\n",dsize,bsize) req = fmt.Sprintf("PUT %v %v \r\n",dsize,ofile) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) count,err = serv.Read(res) if debug { fmt.Printf(Elapsed(Start)+"--In- S: %v",string(res[0:count])) } fileRelay("SendPUT",local,remote,dsize,bsize) }else{ req = fmt.Sprintf("%v\r\n",strings.Join(argv," ")) if debug { fmt.Printf(Elapsed(Start)+"--In- C: %v",req) } fmt.Fprintf(serv,"%v",req) //fmt.Printf("--In- sending RexRequest(%v)\n",len(req)) } //fmt.Printf(Elapsed(Start)+"--In- waiting RexResponse...\n") count,err = serv.Read(res) ress := "" if count == 0 { ress = "(nil)\r\n" }else{ ress = string(res[:count]) } if err != nil { fmt.Printf(Elapsed(Start)+"--En- S: (%d,%v) %v",count,err,ress) }else{ fmt.Printf(Elapsed(Start)+"--In- S: %v",ress) } serv.Close() //conn.Close() var stat string var rcode int fmt.Sscanf(ress,"%d %s",&rcode,&stat) //fmt.Printf("--D-- Client: %v (%v)",rcode,stat) return rcode,ress } // Remote Shell // gcp file [...] { [host]:[port:][dir] | dir } // -p | -no-p func (gsh*GshContext)FileCopy(argv[]string){ var host = "" var port = "" var upload = false var download = false var xargv = []string{"rex-gcp"} var srcv = []string{} var dstv = []string{} argv = argv[1:] for _,v := range argv { /* if v[0] == '-' { // might be a pseudo file (generated date) continue } */ obj := strings.Split(v,":") //fmt.Printf("%d %v %v\n",len(obj),v,obj) if 1 < len(obj) { host = obj[0] file := "" if 0 < len(host) { gsh.LastServer.host = host }else{ host = gsh.LastServer.host port = gsh.LastServer.port } if 2 < len(obj) { port = obj[1] if 0 < len(port) { gsh.LastServer.port = port }else{ port = gsh.LastServer.port } file = obj[2] }else{ file = obj[1] } if len(srcv) == 0 { download = true srcv = append(srcv,file) continue } upload = true dstv = append(dstv,file) continue } /* idx := strings.Index(v,":") if 0 <= idx { remote = v[0:idx] if len(srcv) == 0 { download = true srcv = append(srcv,v[idx+1:]) continue } upload = true dstv = append(dstv,v[idx+1:]) continue } */ if download { dstv = append(dstv,v) }else{ srcv = append(srcv,v) } } hostport := "@" + host + ":" + port if upload { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"PUT") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v // %v\n",hostport,dstv,srcv,xargv) fmt.Printf("--I-- FileCopy PUT gsh://%s/%v < %v\n",hostport,dstv,srcv) gsh.RexecClient(xargv) }else if download { if host != "" { xargv = append(xargv,hostport) } xargv = append(xargv,"GET") xargv = append(xargv,srcv[0:]...) xargv = append(xargv,dstv[0:]...) //fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v // %v\n",hostport,srcv,dstv,xargv) fmt.Printf("--I-- FileCopy GET gsh://%v/%v > %v\n",hostport,srcv,dstv) gsh.RexecClient(xargv) }else{ } } // target func (gsh*GshContext)Trelpath(rloc string)(string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(rloc) twd, _ := os.Getwd() os.Chdir(cwd) tpath := twd + "/" + rloc return tpath } // join to rmote GShell - [user@]host[:port] or cd host:[port]:path func (gsh*GshContext)Rjoin(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- current server = %v\n",gsh.RSERV) return } serv := argv[1] servv := strings.Split(serv,":") if 1 <= len(servv) { if servv[0] == "lo" { servv[0] = "localhost" } } switch len(servv) { case 1: //if strings.Index(serv,":") < 0 { serv = servv[0] + ":" + fmt.Sprintf("%d",GSH_PORT) //} case 2: // host:port serv = strings.Join(servv,":") } xargv := []string{"rex-join","@"+serv,"HELO"} rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Joined (%v) %v\n",rcode,stat) gsh.RSERV = serv }else{ fmt.Printf("--I-- NG, could not joined (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rexec(argv[]string){ if len(argv) <= 1 { fmt.Printf("--I-- rexec command [ | {file || {command} ]\n",gsh.RSERV) return } /* nargv := gshScanArg(strings.Join(argv," "),0) fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) if nargv[1][0] != '{' { nargv[1] = "{" + nargv[1] + "}" fmt.Printf("--D-- nargc=%d [%v]\n",len(nargv),nargv) } argv = nargv */ nargv := []string{} nargv = append(nargv,"{"+strings.Join(argv[1:]," ")+"}") fmt.Printf("--D-- nargc=%d %v\n",len(nargv),nargv) argv = nargv xargv := []string{"rex-exec","@"+gsh.RSERV,"GET"} xargv = append(xargv,argv...) xargv = append(xargv,"/dev/tty") rcode,stat := gsh.RexecClient(xargv) if (rcode / 100) == 2 { fmt.Printf("--I-- OK Rexec (%v) %v\n",rcode,stat) }else{ fmt.Printf("--I-- NG Rexec (%v) %v\n",rcode,stat) } } func (gsh*GshContext)Rchdir(argv[]string){ if len(argv) <= 1 { return } cwd, _ := os.Getwd() os.Chdir(gsh.RWD) os.Chdir(argv[1]) twd, _ := os.Getwd() gsh.RWD = twd fmt.Printf("--I-- JWD=%v\n",twd) os.Chdir(cwd) } func (gsh*GshContext)Rpwd(argv[]string){ fmt.Printf("%v\n",gsh.RWD) } func (gsh*GshContext)Rls(argv[]string){ cwd, _ := os.Getwd() os.Chdir(gsh.RWD) argv[0] = "-ls" gsh.xFind(argv) os.Chdir(cwd) } func (gsh*GshContext)Rput(argv[]string){ var local string = "" var remote string = "" if 1 < len(argv) { local = argv[1] remote = local // base name } if 2 < len(argv) { remote = argv[2] } fmt.Printf("--I-- jput from=%v to=%v\n",local,gsh.Trelpath(remote)) } func (gsh*GshContext)Rget(argv[]string){ var remote string = "" var local string = "" if 1 < len(argv) { remote = argv[1] local = remote // base name } if 2 < len(argv) { local = argv[2] } fmt.Printf("--I-- jget from=%v to=%v\n",gsh.Trelpath(remote),local) } // network // -s, -si, -so // bi-directional, source, sync (maybe socket) func (gshCtx*GshContext)sconnect(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -s [host]:[port[.udp]]\n") return } remote := argv[1] if remote == ":" { remote = "0.0.0.0:9999" } if inTCP { // TCP dport, err := net.ResolveTCPAddr("tcp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } conn, err := net.DialTCP("tcp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); fd := file.Fd() fmt.Printf("Socket: connected to %s, socket[%d]\n",remote,fd) savfd := gshPA.Files[1] gshPA.Files[1] = fd; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() }else{ //dport, err := net.ResolveUDPAddr("udp4",remote); dport, err := net.ResolveUDPAddr("udp",remote); if err != nil { fmt.Printf("Address error: %s (%s)\n",remote,err) return } //conn, err := net.DialUDP("udp4",nil,dport) conn, err := net.DialUDP("udp",nil,dport) if err != nil { fmt.Printf("Connection error: %s (%s)\n",remote,err) return } file, _ := conn.File(); fd := file.Fd() ar := conn.RemoteAddr() //al := conn.LocalAddr() fmt.Printf("Socket: connected to %s [%s], socket[%d]\n", remote,ar.String(),fd) savfd := gshPA.Files[1] gshPA.Files[1] = fd; gshCtx.gshellv(argv[2:]) gshPA.Files[1] = savfd file.Close() conn.Close() } } func (gshCtx*GshContext)saccept(inTCP bool, argv []string) { gshPA := gshCtx.gshPA if len(argv) < 2 { fmt.Printf("Usage: -ac [host]:[port[.udp]]\n") return } local := argv[1] if local == ":" { local = "0.0.0.0:9999" } if inTCP { // TCP port, err := net.ResolveTCPAddr("tcp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } //fmt.Printf("Listen at %s...\n",local); sconn, err := net.ListenTCP("tcp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } //fmt.Printf("Accepting at %s...\n",local); aconn, err := sconn.AcceptTCP() if err != nil { fmt.Printf("Accept error: %s (%s)\n",local,err) return } file, _ := aconn.File() fd := file.Fd() fmt.Printf("Accepted TCP at %s [%d]\n",local,fd) savfd := gshPA.Files[0] gshPA.Files[0] = fd; gshCtx.gshellv(argv[2:]) gshPA.Files[0] = savfd sconn.Close(); aconn.Close(); file.Close(); }else{ //port, err := net.ResolveUDPAddr("udp4",local); port, err := net.ResolveUDPAddr("udp",local); if err != nil { fmt.Printf("Address error: %s (%s)\n",local,err) return } fmt.Printf("Listen UDP at %s...\n",local); //uconn, err := net.ListenUDP("udp4", port) uconn, err := net.ListenUDP("udp", port) if err != nil { fmt.Printf("Listen error: %s (%s)\n",local,err) return } file, _ := uconn.File() fd := file.Fd() ar := uconn.RemoteAddr() remote := "" if ar != nil { remote = ar.String() } if remote == "" { remote = "?" } // not yet received //fmt.Printf("Accepted at %s [%d] <- %s\n",local,fd,"") savfd := gshPA.Files[0] gshPA.Files[0] = fd; savenv := gshPA.Env gshPA.Env = append(savenv, "REMOTE_HOST="+remote) gshCtx.gshellv(argv[2:]) gshPA.Env = savenv gshPA.Files[0] = savfd uconn.Close(); file.Close(); } } // empty line command func (gshCtx*GshContext)xPwd(argv[]string){ // execute context command, pwd + date // context notation, representation scheme, to be resumed at re-login cwd, _ := os.Getwd() switch { case isin("-a",argv): gshCtx.ShowChdirHistory(argv) case isin("-ls",argv): showFileInfo(cwd,argv) default: fmt.Printf("%s\n",cwd) case isin("-v",argv): // obsolete emtpy command t := time.Now() date := t.Format(time.UnixDate) exe, _ := os.Executable() host, _ := os.Hostname() fmt.Printf("{PWD=\"%s\"",cwd) fmt.Printf(" HOST=\"%s\"",host) fmt.Printf(" DATE=\"%s\"",date) fmt.Printf(" TIME=\"%s\"",t.String()) fmt.Printf(" PID=\"%d\"",os.Getpid()) fmt.Printf(" EXE=\"%s\"",exe) fmt.Printf("}\n") } } // History // these should be browsed and edited by HTTP browser // show the time of command with -t and direcotry with -ls // openfile-history, sort by -a -m -c // sort by elapsed time by -t -s // search by "more" like interface // edit history // sort history, and wc or uniq // CPU and other resource consumptions // limit showing range (by time or so) // export / import history func (gshCtx *GshContext)xHistory(argv []string){ atWorkDirX := -1 if 1 < len(argv) && strBegins(argv[1],"@") { atWorkDirX,_ = strconv.Atoi(argv[1][1:]) } //fmt.Printf("--D-- showHistory(%v)\n",argv) for i, v := range gshCtx.CommandHistory { // exclude commands not to be listed by default // internal commands may be suppressed by default if v.CmdLine == "" && !isin("-a",argv) { continue; } if 0 <= atWorkDirX { if v.WorkDirX != atWorkDirX { continue } } if !isin("-n",argv){ // like "fc" fmt.Printf("!%-2d ",i) } if isin("-v",argv){ fmt.Println(v) // should be with it date }else{ if isin("-l",argv) || isin("-l0",argv) { elps := v.EndAt.Sub(v.StartAt); start := v.StartAt.Format(time.Stamp) fmt.Printf("@%d ",v.WorkDirX) fmt.Printf("[%v] %11v/t ",start,elps) } if isin("-l",argv) && !isin("-l0",argv){ fmt.Printf("%v",Rusagef("%t %u\t// %s",argv,v.Rusagev)) } if isin("-at",argv) { // isin("-ls",argv){ dhi := v.WorkDirX // workdir history index fmt.Printf("@%d %s\t",dhi,v.WorkDir) // show the FileInfo of the output command?? } fmt.Printf("%s",v.CmdLine) fmt.Printf("\n") } } } // !n - history index func searchHistory(gshCtx GshContext, gline string) (string, bool, bool){ if gline[0] == '!' { hix, err := strconv.Atoi(gline[1:]) if err != nil { fmt.Printf("--E-- (%s : range)\n",hix) return "", false, true } if hix < 0 || len(gshCtx.CommandHistory) <= hix { fmt.Printf("--E-- (%d : out of range)\n",hix) return "", false, true } return gshCtx.CommandHistory[hix].CmdLine, false, false } // search //for i, v := range gshCtx.CommandHistory { //} return gline, false, false } func (gsh*GshContext)cmdStringInHistory(hix int)(cmd string, ok bool){ if 0 <= hix && hix < len(gsh.CommandHistory) { return gsh.CommandHistory[hix].CmdLine,true } return "",false } // temporary adding to PATH environment // cd name -lib for LD_LIBRARY_PATH // chdir with directory history (date + full-path) // -s for sort option (by visit date or so) func (gsh*GshContext)ShowChdirHistory1(i int,v GChdirHistory, argv []string){ fmt.Printf("!%-2d ",v.CmdIndex) // the first command at this WorkDir fmt.Printf("@%d ",i) fmt.Printf("[%v] ",v.MovedAt.Format(time.Stamp)) showFileInfo(v.Dir,argv) } func (gsh*GshContext)ShowChdirHistory(argv []string){ for i, v := range gsh.ChdirHistory { gsh.ShowChdirHistory1(i,v,argv) } } func skipOpts(argv[]string)(int){ for i,v := range argv { if strBegins(v,"-") { }else{ return i } } return -1 } func (gshCtx*GshContext)xChdir(argv []string){ cdhist := gshCtx.ChdirHistory if isin("?",argv ) || isin("-t",argv) || isin("-a",argv) { gshCtx.ShowChdirHistory(argv) return } pwd, _ := os.Getwd() dir := "" if len(argv) <= 1 { dir = toFullpath("~") }else{ i := skipOpts(argv[1:]) if i < 0 { dir = toFullpath("~") }else{ dir = argv[1+i] } } if strBegins(dir,"@") { if dir == "@0" { // obsolete dir = gshCtx.StartDir }else if dir == "@!" { index := len(cdhist) - 1 if 0 < index { index -= 1 } dir = cdhist[index].Dir }else{ index, err := strconv.Atoi(dir[1:]) if err != nil { fmt.Printf("--E-- xChdir(%v)\n",err) dir = "?" }else if len(gshCtx.ChdirHistory) <= index { fmt.Printf("--E-- xChdir(history range error)\n") dir = "?" }else{ dir = cdhist[index].Dir } } } if dir != "?" { err := os.Chdir(dir) if err != nil { fmt.Printf("--E-- xChdir(%s)(%v)\n",argv[1],err) }else{ cwd, _ := os.Getwd() if cwd != pwd { hist1 := GChdirHistory { } hist1.Dir = cwd hist1.MovedAt = time.Now() hist1.CmdIndex = len(gshCtx.CommandHistory)+1 gshCtx.ChdirHistory = append(cdhist,hist1) if !isin("-s",argv){ //cwd, _ := os.Getwd() //fmt.Printf("%s\n",cwd) ix := len(gshCtx.ChdirHistory)-1 gshCtx.ShowChdirHistory1(ix,hist1,argv) } } } } if isin("-ls",argv){ cwd, _ := os.Getwd() showFileInfo(cwd,argv); } } func TimeValSub(tv1 *syscall.Timeval, tv2 *syscall.Timeval){ *tv1 = syscall.NsecToTimeval(tv1.Nano() - tv2.Nano()) } func RusageSubv(ru1, ru2 [2]syscall.Rusage)([2]syscall.Rusage){ TimeValSub(&ru1[0].Utime,&ru2[0].Utime) TimeValSub(&ru1[0].Stime,&ru2[0].Stime) TimeValSub(&ru1[1].Utime,&ru2[1].Utime) TimeValSub(&ru1[1].Stime,&ru2[1].Stime) return ru1 } func TimeValAdd(tv1 syscall.Timeval, tv2 syscall.Timeval)(syscall.Timeval){ tvs := syscall.NsecToTimeval(tv1.Nano() + tv2.Nano()) return tvs } /* func RusageAddv(ru1, ru2 [2]syscall.Rusage)([2]syscall.Rusage){ TimeValAdd(ru1[0].Utime,ru2[0].Utime) TimeValAdd(ru1[0].Stime,ru2[0].Stime) TimeValAdd(ru1[1].Utime,ru2[1].Utime) TimeValAdd(ru1[1].Stime,ru2[1].Stime) return ru1 } */ // Resource Usage func sRusagef(fmtspec string, argv []string, ru [2]syscall.Rusage)(string){ // ru[0] self , ru[1] children ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) uu := (ut.Sec*1000000 + int64(ut.Usec)) * 1000 su := (st.Sec*1000000 + int64(st.Usec)) * 1000 tu := uu + su ret := fmt.Sprintf("%v/sum",abbtime(tu)) ret += fmt.Sprintf(", %v/usr",abbtime(uu)) ret += fmt.Sprintf(", %v/sys",abbtime(su)) return ret } func Rusagef(fmtspec string, argv []string, ru [2]syscall.Rusage)(string){ ut := TimeValAdd(ru[0].Utime,ru[1].Utime) st := TimeValAdd(ru[0].Stime,ru[1].Stime) fmt.Printf("%d.%06ds/u ",ut.Sec,ut.Usec) //ru[1].Utime.Sec,ru[1].Utime.Usec) fmt.Printf("%d.%06ds/s ",st.Sec,st.Usec) //ru[1].Stime.Sec,ru[1].Stime.Usec) return "" } func Getrusagev()([2]syscall.Rusage){ var ruv = [2]syscall.Rusage{} syscall.Getrusage(syscall.RUSAGE_SELF,&ruv[0]) syscall.Getrusage(syscall.RUSAGE_CHILDREN,&ruv[1]) return ruv } func showRusage(what string,argv []string, ru *syscall.Rusage){ fmt.Printf("%s: ",what); fmt.Printf("Usr=%d.%06ds",ru.Utime.Sec,ru.Utime.Usec) fmt.Printf(" Sys=%d.%06ds",ru.Stime.Sec,ru.Stime.Usec) fmt.Printf(" Rss=%vB",ru.Maxrss) if isin("-l",argv) { fmt.Printf(" MinFlt=%v",ru.Minflt) fmt.Printf(" MajFlt=%v",ru.Majflt) fmt.Printf(" IxRSS=%vB",ru.Ixrss) fmt.Printf(" IdRSS=%vB",ru.Idrss) fmt.Printf(" Nswap=%vB",ru.Nswap) fmt.Printf(" Read=%v",ru.Inblock) fmt.Printf(" Write=%v",ru.Oublock) } fmt.Printf(" Snd=%v",ru.Msgsnd) fmt.Printf(" Rcv=%v",ru.Msgrcv) //if isin("-l",argv) { fmt.Printf(" Sig=%v",ru.Nsignals) //} fmt.Printf("\n"); } func (gshCtx *GshContext)xTime(argv[]string)(bool){ if 2 <= len(argv){ gshCtx.LastRusage = syscall.Rusage{} rusagev1 := Getrusagev() fin := gshCtx.gshellv(argv[1:]) rusagev2 := Getrusagev() showRusage(argv[1],argv,&gshCtx.LastRusage) rusagev := RusageSubv(rusagev2,rusagev1) showRusage("self",argv,&rusagev[0]) showRusage("chld",argv,&rusagev[1]) return fin }else{ rusage:= syscall.Rusage {} syscall.Getrusage(syscall.RUSAGE_SELF,&rusage) showRusage("self",argv, &rusage) syscall.Getrusage(syscall.RUSAGE_CHILDREN,&rusage) showRusage("chld",argv, &rusage) return false } } func (gshCtx *GshContext)xJobs(argv[]string){ fmt.Printf("%d Jobs\n",len(gshCtx.BackGroundJobs)) for ji, pid := range gshCtx.BackGroundJobs { //wstat := syscall.WaitStatus {0} rusage := syscall.Rusage {} //wpid, err := syscall.Wait4(pid,&wstat,syscall.WNOHANG,&rusage); wpid, err := syscall.Wait4(pid,nil,syscall.WNOHANG,&rusage); if err != nil { fmt.Printf("--E-- %%%d [%d] (%v)\n",ji,pid,err) }else{ fmt.Printf("%%%d[%d](%d)\n",ji,pid,wpid) showRusage("chld",argv,&rusage) } } } func (gsh*GshContext)inBackground(argv[]string)(bool){ if gsh.CmdTrace { fmt.Printf("--I-- inBackground(%v)\n",argv) } gsh.BackGround = true // set background option xfin := false xfin = gsh.gshellv(argv) gsh.BackGround = false return xfin } // -o file without command means just opening it and refer by #N // should be listed by "files" comnmand func (gshCtx*GshContext)xOpen(argv[]string){ var pv = []int{-1,-1} err := syscall.Pipe(pv) fmt.Printf("--I-- pipe()=[#%d,#%d](%v)\n",pv[0],pv[1],err) } func (gshCtx*GshContext)fromPipe(argv[]string){ } func (gshCtx*GshContext)xClose(argv[]string){ } // redirect func (gshCtx*GshContext)redirect(argv[]string)(bool){ if len(argv) < 2 { return false } cmd := argv[0] fname := argv[1] var file *os.File = nil fdix := 0 mode := os.O_RDONLY switch { case cmd == "-i" || cmd == "<": fdix = 0 mode = os.O_RDONLY case cmd == "-o" || cmd == ">": fdix = 1 mode = os.O_RDWR | os.O_CREATE case cmd == "-a" || cmd == ">>": fdix = 1 mode = os.O_RDWR | os.O_CREATE | os.O_APPEND } if fname[0] == '#' { fd, err := strconv.Atoi(fname[1:]) if err != nil { fmt.Printf("--E-- (%v)\n",err) return false } file = os.NewFile(uintptr(fd),"MaybePipe") }else{ xfile, err := os.OpenFile(argv[1], mode, 0600) if err != nil { fmt.Printf("--E-- (%s)\n",err) return false } file = xfile } gshPA := gshCtx.gshPA savfd := gshPA.Files[fdix] gshPA.Files[fdix] = file.Fd() fmt.Printf("--I-- Opened [%d] %s\n",file.Fd(),argv[1]) gshCtx.gshellv(argv[2:]) gshPA.Files[fdix] = savfd return false } //fmt.Fprintf(res, "GShell Status: %q", html.EscapeString(req.URL.Path)) func httpHandler(res http.ResponseWriter, req *http.Request){ path := req.URL.Path fmt.Printf("--I-- Got HTTP Request(%s)\n",path) { gshCtxBuf, _ := setupGshContext() gshCtx := &gshCtxBuf fmt.Printf("--I-- %s\n",path[1:]) gshCtx.tgshelll(path[1:]) } fmt.Fprintf(res, "Hello(^-^)//\n%s\n",path) } func (gshCtx *GshContext) httpServer(argv []string){ http.HandleFunc("/", httpHandler) accport := "localhost:9999" fmt.Printf("--I-- HTTP Server Start at [%s]\n",accport) http.ListenAndServe(accport,nil) } func (gshCtx *GshContext)xGo(argv[]string){ go gshCtx.gshellv(argv[1:]); } func (gshCtx *GshContext) xPs(argv[]string)(){ } // Plugin // plugin [-ls [names]] to list plugins // Reference: plugin source code func (gshCtx *GshContext) whichPlugin(name string,argv[]string)(pi *PluginInfo){ pi = nil for _,p := range gshCtx.PluginFuncs { if p.Name == name && pi == nil { pi = &p } if !isin("-s",argv){ //fmt.Printf("%v %v ",i,p) if isin("-ls",argv){ showFileInfo(p.Path,argv) }else{ fmt.Printf("%s\n",p.Name) } } } return pi } func (gshCtx *GshContext) xPlugin(argv[]string) (error) { if len(argv) == 0 || argv[0] == "-ls" { gshCtx.whichPlugin("",argv) return nil } name := argv[0] Pin := gshCtx.whichPlugin(name,[]string{"-s"}) if Pin != nil { os.Args = argv // should be recovered? Pin.Addr.(func())() return nil } sofile := toFullpath(argv[0] + ".so") // or find it by which($PATH) p, err := plugin.Open(sofile) if err != nil { fmt.Printf("--E-- plugin.Open(%s)(%v)\n",sofile,err) return err } fname := "Main" f, err := p.Lookup(fname) if( err != nil ){ fmt.Printf("--E-- plugin.Lookup(%s)(%v)\n",fname,err) return err } pin := PluginInfo {p,f,name,sofile} gshCtx.PluginFuncs = append(gshCtx.PluginFuncs,pin) fmt.Printf("--I-- added (%d)\n",len(gshCtx.PluginFuncs)) //fmt.Printf("--I-- first call(%s:%s)%v\n",sofile,fname,argv) os.Args = argv f.(func())() return err } func (gshCtx*GshContext)Args(argv[]string){ for i,v := range os.Args { fmt.Printf("[%v] %v\n",i,v) } } func (gshCtx *GshContext) showVersion(argv[]string){ if isin("-l",argv) { fmt.Printf("%v/%v (%v)",NAME,VERSION,DATE); }else{ fmt.Printf("%v",VERSION); } if isin("-a",argv) { fmt.Printf(" %s",AUTHOR) } if !isin("-n",argv) { fmt.Printf("\n") } } // Scanf // string decomposer // scanf [format] [input] func scanv(sstr string)(strv[]string){ strv = strings.Split(sstr," ") return strv } func scanUntil(src,end string)(rstr string,leng int){ idx := strings.Index(src,end) if 0 <= idx { rstr = src[0:idx] return rstr,idx+len(end) } return src,0 } // -bn -- display base-name part only // can be in some %fmt, for sed rewriting func (gsh*GshContext)printVal(fmts string, vstr string, optv[]string){ //vint,err := strconv.Atoi(vstr) var ival int64 = 0 n := 0 err := error(nil) if strBegins(vstr,"_") { vx,_ := strconv.Atoi(vstr[1:]) if vx < len(gsh.iValues) { vstr = gsh.iValues[vx] }else{ } } // should use Eval() if strBegins(vstr,"0x") { n,err = fmt.Sscanf(vstr[2:],"%x",&ival) }else{ n,err = fmt.Sscanf(vstr,"%d",&ival) //fmt.Printf("--D-- n=%d err=(%v) {%s}=%v\n",n,err,vstr, ival) } if n == 1 && err == nil { //fmt.Printf("--D-- formatn(%v) ival(%v)\n",fmts,ival) fmt.Printf("%"+fmts,ival) }else{ if isin("-bn",optv){ fmt.Printf("%"+fmts,filepath.Base(vstr)) }else{ fmt.Printf("%"+fmts,vstr) } } } func (gsh*GshContext)printfv(fmts,div string,argv[]string,optv[]string,list[]string){ //fmt.Printf("{%d}",len(list)) //curfmt := "v" outlen := 0 curfmt := gsh.iFormat if 0 < len(fmts) { for xi := 0; xi < len(fmts); xi++ { fch := fmts[xi] if fch == '%' { if xi+1 < len(fmts) { curfmt = string(fmts[xi+1]) gsh.iFormat = curfmt xi += 1 if xi+1 < len(fmts) && fmts[xi+1] == '(' { vals,leng := scanUntil(fmts[xi+2:],")") //fmt.Printf("--D-- show fmt(%v) val(%v) next(%v)\n",curfmt,vals,leng) gsh.printVal(curfmt,vals,optv) xi += 2+leng-1 outlen += 1 } continue } } if fch == '_' { hi,leng := scanInt(fmts[xi+1:]) if 0 < leng { if hi < len(gsh.iValues) { gsh.printVal(curfmt,gsh.iValues[hi],optv) outlen += 1 // should be the real length }else{ fmt.Printf("((out-range))") } xi += leng continue; } } fmt.Printf("%c",fch) outlen += 1 } }else{ //fmt.Printf("--D-- print {%s}\n") for i,v := range list { if 0 < i { fmt.Printf(div) } gsh.printVal(curfmt,v,optv) outlen += 1 } } if 0 < outlen { fmt.Printf("\n") } } func (gsh*GshContext)Scanv(argv[]string){ //fmt.Printf("--D-- Scanv(%v)\n",argv) if len(argv) == 1 { return } argv = argv[1:] fmts := "" if strBegins(argv[0],"-F") { fmts = argv[0] gsh.iDelimiter = fmts argv = argv[1:] } input := strings.Join(argv," ") if fmts == "" { // simple decomposition v := scanv(input) gsh.iValues = v //fmt.Printf("%v\n",strings.Join(v,",")) }else{ v := make([]string,8) n,err := fmt.Sscanf(input,fmts,&v[0],&v[1],&v[2],&v[3]) fmt.Printf("--D-- Scanf ->(%v) n=%d err=(%v)\n",v,n,err) gsh.iValues = v } } func (gsh*GshContext)Printv(argv[]string){ if false { //@@U fmt.Printf("%v\n",strings.Join(argv[1:]," ")) return } //fmt.Printf("--D-- Printv(%v)\n",argv) //fmt.Printf("%v\n",strings.Join(gsh.iValues,",")) div := gsh.iDelimiter fmts := "" argv = argv[1:] if 0 < len(argv) { if strBegins(argv[0],"-F") { div = argv[0][2:] argv = argv[1:] } } optv := []string{} for _,v := range argv { if strBegins(v,"-"){ optv = append(optv,v) argv = argv[1:] }else{ break; } } if 0 < len(argv) { fmts = strings.Join(argv," ") } gsh.printfv(fmts,div,argv,optv,gsh.iValues) } func (gsh*GshContext)Basename(argv[]string){ for i,v := range gsh.iValues { gsh.iValues[i] = filepath.Base(v) } } func (gsh*GshContext)Sortv(argv[]string){ sv := gsh.iValues sort.Slice(sv , func(i,j int) bool { return sv[i] < sv[j] }) } func (gsh*GshContext)Shiftv(argv[]string){ vi := len(gsh.iValues) if 0 < vi { if isin("-r",argv) { top := gsh.iValues[0] gsh.iValues = append(gsh.iValues[1:],top) }else{ gsh.iValues = gsh.iValues[1:] } } } func (gsh*GshContext)Enq(argv[]string){ } func (gsh*GshContext)Deq(argv[]string){ } func (gsh*GshContext)Push(argv[]string){ gsh.iValStack = append(gsh.iValStack,argv[1:]) fmt.Printf("depth=%d\n",len(gsh.iValStack)) } func (gsh*GshContext)Dump(argv[]string){ for i,v := range gsh.iValStack { fmt.Printf("%d %v\n",i,v) } } func (gsh*GshContext)Pop(argv[]string){ depth := len(gsh.iValStack) if 0 < depth { v := gsh.iValStack[depth-1] if isin("-cat",argv){ gsh.iValues = append(gsh.iValues,v...) }else{ gsh.iValues = v } gsh.iValStack = gsh.iValStack[0:depth-1] fmt.Printf("depth=%d %s\n",len(gsh.iValStack),gsh.iValues) }else{ fmt.Printf("depth=%d\n",depth) } } // Command Interpreter func (gshCtx*GshContext)gshellv(argv []string) (fin bool) { fin = false if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv((%d))\n",len(argv)) } if len(argv) <= 0 { return false } xargv := []string{} for ai := 0; ai < len(argv); ai++ { xargv = append(xargv,strsubst(gshCtx,argv[ai],false)) } argv = xargv if false { for ai := 0; ai < len(argv); ai++ { fmt.Printf("[%d] %s [%d]%T\n", ai,argv[ai],len(argv[ai]),argv[ai]) } } cmd := argv[0] if gshCtx.CmdTrace { fmt.Fprintf(os.Stderr,"--I-- gshellv(%d)%v\n",len(argv),argv) } switch { // https://tour.golang.org/flowcontrol/11 case cmd == "": gshCtx.xPwd([]string{}); // emtpy command case cmd == "-x": gshCtx.CmdTrace = ! gshCtx.CmdTrace case cmd == "-xt": gshCtx.CmdTime = ! gshCtx.CmdTime case cmd == "-ot": gshCtx.sconnect(true, argv) case cmd == "-ou": gshCtx.sconnect(false, argv) case cmd == "-it": gshCtx.saccept(true , argv) case cmd == "-iu": gshCtx.saccept(false, argv) case cmd == "-i" || cmd == "<" || cmd == "-o" || cmd == ">" || cmd == "-a" || cmd == ">>" || cmd == "-s" || cmd == "><": gshCtx.redirect(argv) case cmd == "|": gshCtx.fromPipe(argv) case cmd == "args": gshCtx.Args(argv) case cmd == "bg" || cmd == "-bg": rfin := gshCtx.inBackground(argv[1:]) return rfin case cmd == "-bn": gshCtx.Basename(argv) case cmd == "call": _,_ = gshCtx.excommand(false,argv[1:]) case cmd == "cd" || cmd == "chdir": gshCtx.xChdir(argv); case cmd == "-cksum": gshCtx.xFind(argv) case cmd == "-sum": gshCtx.xFind(argv) case cmd == "-sumtest": str := "" if 1 < len(argv) { str = argv[1] } crc := strCRC32(str,uint64(len(str))) fprintf(stderr,"%v %v\n",crc,len(str)) case cmd == "close": gshCtx.xClose(argv) case cmd == "gcp": gshCtx.FileCopy(argv) case cmd == "dec" || cmd == "decode": gshCtx.Dec(argv) case cmd == "#define": case cmd == "dic" || cmd == "d": xDic(argv) case cmd == "dump": gshCtx.Dump(argv) case cmd == "echo" || cmd == "e": echo(argv,true) case cmd == "enc" || cmd == "encode": gshCtx.Enc(argv) case cmd == "env": env(argv) case cmd == "eval": xEval(argv[1:],true) case cmd == "ev" || cmd == "events": dumpEvents(argv) case cmd == "exec": _,_ = gshCtx.excommand(true,argv[1:]) // should not return here case cmd == "exit" || cmd == "quit": // write Result code EXIT to 3> return true case cmd == "fdls": // dump the attributes of fds (of other process) case cmd == "-find" || cmd == "fin" || cmd == "ufind" || cmd == "uf": gshCtx.xFind(argv[1:]) case cmd == "fu": gshCtx.xFind(argv[1:]) case cmd == "fork": // mainly for a server case cmd == "-gen": gshCtx.gen(argv) case cmd == "-go": gshCtx.xGo(argv) case cmd == "-grep": gshCtx.xFind(argv) case cmd == "gdeq": gshCtx.Deq(argv) case cmd == "genq": gshCtx.Enq(argv) case cmd == "gpop": gshCtx.Pop(argv) case cmd == "gpush": gshCtx.Push(argv) case cmd == "history" || cmd == "hi": // hi should be alias gshCtx.xHistory(argv) case cmd == "jobs": gshCtx.xJobs(argv) case cmd == "lnsp" || cmd == "nlsp": gshCtx.SplitLine(argv) case cmd == "-ls": gshCtx.xFind(argv) case cmd == "nop": // do nothing case cmd == "pipe": gshCtx.xOpen(argv) case cmd == "plug" || cmd == "plugin" || cmd == "pin": gshCtx.xPlugin(argv[1:]) case cmd == "print" || cmd == "-pr": // output internal slice // also sprintf should be gshCtx.Printv(argv) case cmd == "ps": gshCtx.xPs(argv) case cmd == "pstitle": // to be gsh.title case cmd == "rexecd" || cmd == "rexd": gshCtx.RexecServer(argv) case cmd == "rexec" || cmd == "rex": gshCtx.RexecClient(argv) case cmd == "repeat" || cmd == "rep": // repeat cond command gshCtx.repeat(argv) case cmd == "replay": gshCtx.xReplay(argv) case cmd == "scan": // scan input (or so in fscanf) to internal slice (like Files or map) gshCtx.Scanv(argv) case cmd == "set": // set name ... case cmd == "serv": gshCtx.httpServer(argv) case cmd == "shift": gshCtx.Shiftv(argv) case cmd == "sleep": gshCtx.sleep(argv) case cmd == "-sort": gshCtx.Sortv(argv) case cmd == "j" || cmd == "join": gshCtx.Rjoin(argv) case cmd == "a" || cmd == "alpa": gshCtx.Rexec(argv) case cmd == "jcd" || cmd == "jchdir": gshCtx.Rchdir(argv) case cmd == "jget": gshCtx.Rget(argv) case cmd == "jls": gshCtx.Rls(argv) case cmd == "jput": gshCtx.Rput(argv) case cmd == "jpwd": gshCtx.Rpwd(argv) case cmd == "time": fin = gshCtx.xTime(argv) case cmd == "ungets": if 1 < len(argv) { ungets(argv[1]+"\n") }else{ } case cmd == "pwd": gshCtx.xPwd(argv); case cmd == "ver" || cmd == "-ver" || cmd == "version": gshCtx.showVersion(argv) case cmd == "where": // data file or so? case cmd == "which": which("PATH",argv); case cmd == "gj" && 1 < len(argv) && argv[1] == "listen": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "serve": go gj_server(argv[1:]); case cmd == "gj" && 1 < len(argv) && argv[1] == "join": go gj_client(argv[1:]); case cmd == "gj": jsend(argv); case cmd == "jsend": jsend(argv); default: if gshCtx.whichPlugin(cmd,[]string{"-s"}) != nil { gshCtx.xPlugin(argv) }else{ notfound,_ := gshCtx.excommand(false,argv) if notfound { fmt.Printf("--E-- command not found (%v)\n",cmd) } } } return fin } func (gsh*GshContext)gshelll(gline string) (rfin bool) { argv := strings.Split(string(gline)," ") fin := gsh.gshellv(argv) return fin } func (gsh*GshContext)tgshelll(gline string)(xfin bool){ start := time.Now() fin := gsh.gshelll(gline) end := time.Now() elps := end.Sub(start); if gsh.CmdTime { fmt.Printf("--T-- " + time.Now().Format(time.Stamp) + "(%d.%09ds)\n", elps/1000000000,elps%1000000000) } return fin } func Ttyid() (int) { fi, err := os.Stdin.Stat() if err != nil { return 0; } //fmt.Printf("Stdin: %v Dev=%d\n", // fi.Mode(),fi.Mode()&os.ModeDevice) if (fi.Mode() & os.ModeDevice) != 0 { stat := syscall.Stat_t{}; err := syscall.Fstat(0,&stat) if err != nil { //fmt.Printf("--I-- Stdin: (%v)\n",err) }else{ //fmt.Printf("--I-- Stdin: rdev=%d %d\n", // stat.Rdev&0xFF,stat.Rdev); //fmt.Printf("--I-- Stdin: tty%d\n",stat.Rdev&0xFF); return int(stat.Rdev & 0xFF) } } return 0 } func (gshCtx *GshContext) ttyfile() string { //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) ttyfile := gshCtx.GshHomeDir + "/" + "gsh-tty" + fmt.Sprintf("%02d",gshCtx.TerminalId) //strconv.Itoa(gshCtx.TerminalId) //fmt.Printf("--I-- ttyfile=%s\n",ttyfile) return ttyfile } func (gshCtx *GshContext) ttyline()(*os.File){ file, err := os.OpenFile(gshCtx.ttyfile(),os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if err != nil { fmt.Printf("--F-- cannot open %s (%s)\n",gshCtx.ttyfile(),err) return file; } return file } func (gshCtx *GshContext)getline(hix int, skipping bool, prevline string) (string) { if( skipping ){ reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) }else if true { return xgetline(hix,prevline,gshCtx) } /* else if( with_exgetline && gshCtx.GetLine != "" ){ //var xhix int64 = int64(hix); // cast newenv := os.Environ() newenv = append(newenv, "GSH_LINENO="+strconv.FormatInt(int64(hix),10) ) tty := gshCtx.ttyline() tty.WriteString(prevline) Pa := os.ProcAttr { "", // start dir newenv, //os.Environ(), []*os.File{os.Stdin,os.Stdout,os.Stderr,tty}, nil, } //fmt.Printf("--I-- getline=%s // %s\n",gsh_getlinev[0],gshCtx.GetLine) proc, err := os.StartProcess(gsh_getlinev[0],[]string{"getline","getline"},&Pa) if err != nil { fmt.Printf("--F-- getline process error (%v)\n",err) // for ; ; { } return "exit (getline program failed)" } //stat, err := proc.Wait() proc.Wait() buff := make([]byte,LINESIZE) count, err := tty.Read(buff) //_, err = tty.Read(buff) //fmt.Printf("--D-- getline (%d)\n",count) if err != nil { if ! (count == 0) { // && err.String() == "EOF" ) { fmt.Printf("--E-- getline error (%s)\n",err) } }else{ //fmt.Printf("--I-- getline OK \"%s\"\n",buff) } tty.Close() gline := string(buff[0:count]) return gline }else */ { // if isatty { fmt.Printf("!%d",hix) fmt.Print(PROMPT) // } reader := bufio.NewReaderSize(os.Stdin,LINESIZE) line, _, _ := reader.ReadLine() return string(line) } } //== begin ======================================================= getline /* * getline.c * 2020-0819 extracted from dog.c * getline.go * 2020-0822 ported to Go */ /* package main // getline main import ( "fmt" // fmt "strings" // strings "os" // os "syscall" // syscall //"bytes" // os //"os/exec" // os ) */ // C language compatibility functions var errno = 0 var stdin *os.File = os.Stdin var stdout *os.File = os.Stdout var stderr *os.File = os.Stderr var EOF = -1 var NULL = 0 type FILE os.File type StrBuff []byte var NULL_FP *os.File = nil var NULLSP = 0 //var LINESIZE = 1024 func system(cmdstr string)(int){ PA := syscall.ProcAttr { "", // the starting directory os.Environ(), []uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, nil, } argv := strings.Split(cmdstr," ") pid,err := syscall.ForkExec(argv[0],argv,&PA) if( err != nil ){ fmt.Printf("--E-- syscall(%v) err(%v)\n",cmdstr,err) } syscall.Wait4(pid,nil,0,nil) /* argv := strings.Split(cmdstr," ") fmt.Fprintf(os.Stderr,"--I-- system(%v)\n",argv) //cmd := exec.Command(argv[0:]...) cmd := exec.Command(argv[0],argv[1],argv[2]) cmd.Stdin = strings.NewReader("output of system") var out bytes.Buffer cmd.Stdout = &out var serr bytes.Buffer cmd.Stderr = &serr err := cmd.Run() if err != nil { fmt.Fprintf(os.Stderr,"--E-- system(%v)err(%v)\n",argv,err) fmt.Printf("ERR:%s\n",serr.String()) }else{ fmt.Printf("%s",out.String()) } */ return 0 } func atoi(str string)(ret int){ ret,err := fmt.Sscanf(str,"%d",ret) if err == nil { return ret }else{ // should set errno return 0 } } func getenv(name string)(string){ val,got := os.LookupEnv(name) if got { return val }else{ return "?" } } func strcpy(dst StrBuff, src string){ var i int srcb := []byte(src) for i = 0; i < len(src) && srcb[i] != 0; i++ { dst[i] = srcb[i] } dst[i] = 0 } func xstrcpy(dst StrBuff, src StrBuff){ dst = src } func strcat(dst StrBuff, src StrBuff){ dst = append(dst,src...) } func strdup(str StrBuff)(string){ return string(str[0:strlen(str)]) } func sstrlen(str string)(int){ return len(str) } func strlen(str StrBuff)(int){ var i int for i = 0; i < len(str) && str[i] != 0; i++ { } return i } func sizeof(data StrBuff)(int){ return len(data) } func isatty(fd int)(ret int){ return 1 } func fopen(file string,mode string)(fp*os.File){ if mode == "r" { fp,err := os.Open(file) if( err != nil ){ fmt.Printf("--E-- fopen(%s,%s)=(%v)\n",file,mode,err) return NULL_FP; } return fp; }else{ fp,err := os.OpenFile(file,os.O_RDWR|os.O_CREATE|os.O_TRUNC,0600) if( err != nil ){ return NULL_FP; } return fp; } } func fclose(fp*os.File){ fp.Close() } func fflush(fp *os.File)(int){ return 0 } func fgetc(fp*os.File)(int){ var buf [1]byte _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } func sfgets(str*string, size int, fp*os.File)(int){ buf := make(StrBuff,size) var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fgets(buf StrBuff, size int, fp*os.File)(int){ var ch int var i int for i = 0; i < len(buf)-1; i++ { ch = fgetc(fp) //fprintf(stderr,"--fgets %d/%d %X\n",i,len(buf),ch) if( ch == EOF ){ break; } buf[i] = byte(ch); if( ch == '\n' ){ break; } } buf[i] = 0 //fprintf(stderr,"--fgets %d/%d (%s)\n",i,len(buf),buf[0:i]) return i } func fputc(ch int , fp*os.File)(int){ var buf [1]byte buf[0] = byte(ch) fp.Write(buf[0:1]) return 0 } func fputs(buf StrBuff, fp*os.File)(int){ fp.Write(buf) return 0 } func xfputss(str string, fp*os.File)(int){ return fputs([]byte(str),fp) } func sscanf(str StrBuff,fmts string, params ...interface{})(int){ fmt.Sscanf(string(str[0:strlen(str)]),fmts,params...) return 0 } func fprintf(fp*os.File,fmts string, params ...interface{})(int){ fmt.Fprintf(fp,fmts,params...) return 0 } // Command Line IME //----------------------------------------------------------------------- MyIME var MyIMEVER = "MyIME/0.0.2"; type RomKana struct { dic string // dictionaly ID pat string // input pattern out string // output pattern hit int64 // count of hit and used } var dicents = 0 var romkana [1024]RomKana var Romkan []RomKana func isinDic(str string)(int){ for i,v := range Romkan { if v.pat == str { return i } } return -1 } const ( DIC_COM_LOAD = "im" DIC_COM_DUMP = "s" DIC_COM_LIST = "ls" DIC_COM_ENA = "en" DIC_COM_DIS = "di" ) func helpDic(argv []string){ out := stderr cmd := "" if 0 < len(argv) { cmd = argv[0] } fprintf(out,"--- %v Usage\n",cmd) fprintf(out,"... Commands\n") fprintf(out,"... %v %-3v [dicName] [dicURL ] -- Import dictionary\n",cmd,DIC_COM_LOAD) fprintf(out,"... %v %-3v [pattern] -- Search in dictionary\n",cmd,DIC_COM_DUMP) fprintf(out,"... %v %-3v [dicName] -- List dictionaries\n",cmd,DIC_COM_LIST) fprintf(out,"... %v %-3v [dicName] -- Disable dictionaries\n",cmd,DIC_COM_DIS) fprintf(out,"... %v %-3v [dicName] -- Enable dictionaries\n",cmd,DIC_COM_ENA) fprintf(out,"... Keys ... %v\n","ESC can be used for '\\'") fprintf(out,"... \\c -- Reverse the case of the last character\n",) fprintf(out,"... \\i -- Replace input with translated text\n",) fprintf(out,"... \\j -- On/Off translation mode\n",) fprintf(out,"... \\l -- Force Lower Case\n",) fprintf(out,"... \\u -- Force Upper Case (software CapsLock)\n",) fprintf(out,"... \\v -- Show translation actions\n",) fprintf(out,"... \\x -- Replace the last input character with it Hexa-Decimal\n",) } func xDic(argv[]string){ if len(argv) <= 1 { helpDic(argv) return } argv = argv[1:] var debug = false var info = false var silent = false var dump = false var builtin = false cmd := argv[0] argv = argv[1:] opt := "" arg := "" if 0 < len(argv) { arg1 := argv[0] if arg1[0] == '-' { switch arg1 { default: fmt.Printf("--Ed-- Unknown option(%v)\n",arg1) return case "-b": builtin = true case "-d": debug = true case "-s": silent = true case "-v": info = true } opt = arg1 argv = argv[1:] } } dicName := "" dicURL := "" if 0 < len(argv) { arg = argv[0] dicName = arg argv = argv[1:] } if 0 < len(argv) { dicURL = argv[0] argv = argv[1:] } if false { fprintf(stderr,"--Dd-- com(%v) opt(%v) arg(%v)\n",cmd,opt,arg) } if cmd == DIC_COM_LOAD { //dicType := "" dicBody := "" if !builtin && dicName != "" && dicURL == "" { f,err := os.Open(dicName) if err == nil { dicURL = dicName }else{ f,err = os.Open(dicName+".html") if err == nil { dicURL = dicName+".html" }else{ f,err = os.Open("gshdic-"+dicName+".html") if err == nil { dicURL = "gshdic-"+dicName+".html" } } } if err == nil { var buf = make([]byte,128*1024) count,err := f.Read(buf) f.Close() if info { fprintf(stderr,"--Id-- ReadDic(%v,%v)\n",count,err) } dicBody = string(buf[0:count]) } } if dicBody == "" { switch arg { default: dicName = "WorldDic" dicURL = WorldDic if info { fprintf(stderr,"--Id-- default dictionary \"%v\"\n", dicName); } case "wnn": dicName = "WnnDic" dicURL = WnnDic case "sumomo": dicName = "SumomoDic" dicURL = SumomoDic case "sijimi": dicName = "SijimiDic" dicURL = SijimiDic case "jkl": dicName = "JKLJaDic" dicURL = JA_JKLDic } if debug { fprintf(stderr,"--Id-- %v URL=%v\n\n",dicName,dicURL); } dicv := strings.Split(dicURL,",") if debug { fprintf(stderr,"--Id-- %v encoded data...\n",dicName) fprintf(stderr,"Type: %v\n",dicv[0]) fprintf(stderr,"Body: %v\n",dicv[1]) fprintf(stderr,"\n") } body,_ := base64.StdEncoding.DecodeString(dicv[1]) dicBody = string(body) } if info { fmt.Printf("--Id-- %v %v\n",dicName,dicURL) fmt.Printf("%s\n",dicBody) } if debug { fprintf(stderr,"--Id-- dicName %v text...\n",dicName) fprintf(stderr,"%v\n",string(dicBody)) } entv := strings.Split(dicBody,"\n"); if info { fprintf(stderr,"--Id-- %v scan...\n",dicName); } var added int = 0 var dup int = 0 for i,v := range entv { var pat string var out string fmt.Sscanf(v,"%s %s",&pat,&out) if len(pat) <= 0 { }else{ if 0 <= isinDic(pat) { dup += 1 continue } romkana[dicents] = RomKana{dicName,pat,out,0} dicents += 1 added += 1 Romkan = append(Romkan,RomKana{dicName,pat,out,0}) if debug { fmt.Printf("[%3v]:[%2v]%-8v [%2v]%v\n", i,len(pat),pat,len(out),out) } } } if !silent { url := dicURL if strBegins(url,"data:") { url = "builtin" } fprintf(stderr,"--Id-- %v scan... %v added, %v dup. / %v total (%v)\n", dicName,added,dup,len(Romkan),url); } // should sort by pattern length for conclete match, for performance if debug { arg = "" // search pattern dump = true } } if cmd == DIC_COM_DUMP || dump { fprintf(stderr,"--Id-- %v dump... %v entries:\n",dicName,len(Romkan)); var match = 0 for i := 0; i < len(Romkan); i++ { dic := Romkan[i].dic pat := Romkan[i].pat out := Romkan[i].out if arg == "" || 0 <= strings.Index(pat,arg)||0 <= strings.Index(out,arg) { fmt.Printf("\\\\%v\t%v [%2v]%-8v [%2v]%v\n", i,dic,len(pat),pat,len(out),out) match += 1 } } fprintf(stderr,"--Id-- %v matched %v / %v entries:\n",arg,match,len(Romkan)); } } func loadDefaultDic(dic int){ if( 0 < len(Romkan) ){ return } //fprintf(stderr,"\r\n") xDic([]string{"dic",DIC_COM_LOAD}); var info = false if info { fprintf(stderr,"--Id-- Conguraturations!! WorldDic is now activated.\r\n") fprintf(stderr,"--Id-- enter \"dic\" command for help.\r\n") } } func readDic()(int){ /* var rk *os.File; var dic = "MyIME-dic.txt"; //rk = fopen("romkana.txt","r"); //rk = fopen("JK-JA-morse-dic.txt","r"); rk = fopen(dic,"r"); if( rk == NULL_FP ){ if( true ){ fprintf(stderr,"--%s-- Could not load %s\n",MyIMEVER,dic); } return -1; } if( true ){ var di int; var line = make(StrBuff,1024); var pat string var out string for di = 0; di < 1024; di++ { if( fgets(line,sizeof(line),rk) == NULLSP ){ break; } fmt.Sscanf(string(line[0:strlen(line)]),"%s %s",&pat,&out); //sscanf(line,"%s %[^\r\n]",&pat,&out); romkana[di].pat = pat; romkana[di].out = out; //fprintf(stderr,"--Dd- %-10s %s\n",pat,out) } dicents += di if( false ){ fprintf(stderr,"--%s-- loaded romkana.txt [%d]\n",MyIMEVER,di); for di = 0; di < dicents; di++ { fprintf(stderr, "%s %s\n",romkana[di].pat,romkana[di].out); } } } fclose(rk); //romkana[dicents].pat = "//ddump" //romkana[dicents].pat = "//ddump" // dump the dic. and clean the command input */ return 0; } func matchlen(stri string, pati string)(int){ if strBegins(stri,pati) { return len(pati) }else{ return 0 } } func convs(src string)(string){ var si int; var sx = len(src); var di int; var mi int; var dstb []byte for si = 0; si < sx; { // search max. match from the position if strBegins(src[si:],"%x/") { // %x/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 //fmt.Sscanf(src[si+3:si+3+ix],"%d",&iv) fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%x",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%d/") { // %d/integer/ // s/a/b/ ix := strings.Index(src[si+3:],"/") if 0 < ix { var iv int = 0 fmt.Sscanf(src[si+3:si+3+ix],"%v",&iv) sval := fmt.Sprintf("%d",iv) bval := []byte(sval) dstb = append(dstb,bval...) si = si+3+ix+1 continue } } if strBegins(src[si:],"%t") { now := time.Now() if true { date := now.Format(time.Stamp) dstb = append(dstb,[]byte(date)...) si = si+3 } continue } var maxlen int = 0; var len int; mi = -1; for di = 0; di < dicents; di++ { len = matchlen(src[si:],romkana[di].pat); if( maxlen < len ){ maxlen = len; mi = di; } } if( 0 < maxlen ){ out := romkana[mi].out; dstb = append(dstb,[]byte(out)...); si += maxlen; }else{ dstb = append(dstb,src[si]) si += 1; } } return string(dstb) } func trans(src string)(int){ dst := convs(src); xfputss(dst,stderr); return 0; } //------------------------------------------------------------- LINEEDIT // "?" at the top of the line means searching history // should be compatilbe with Telnet const ( EV_MODE = 255 EV_IDLE = 254 EV_TIMEOUT = 253 GO_UP = 252 // k GO_DOWN = 251 // j GO_RIGHT = 250 // l GO_LEFT = 249 // h DEL_RIGHT = 248 // x GO_TOPL = 'A'-0x40 // 0 GO_ENDL = 'E'-0x40 // $ GO_TOPW = 239 // b GO_ENDW = 238 // e GO_NEXTW = 237 // w GO_FORWCH = 229 // f GO_PAIRCH = 228 // % GO_DEL = 219 // d HI_SRCH_FW = 209 // / HI_SRCH_BK = 208 // ? HI_SRCH_RFW = 207 // n HI_SRCH_RBK = 206 // N ) // should return number of octets ready to be read immediately //fprintf(stderr,"\n--Select(%v %v)\n",err,r.Bits[0]) var EventRecvFd = -1 // file descriptor var EventSendFd = -1 const EventFdOffset = 1000000 const NormalFdOffset = 100 func putEvent(event int, evarg int){ if true { if EventRecvFd < 0 { var pv = []int{-1,-1} syscall.Pipe(pv) EventRecvFd = pv[0] EventSendFd = pv[1] //fmt.Printf("--De-- EventPipe created[%v,%v]\n",EventRecvFd,EventSendFd) } }else{ if EventRecvFd < 0 { // the document differs from this spec // https://golang.org/src/syscall/syscall_unix.go?s=8096:8158#L340 sv,err := syscall.Socketpair(syscall.AF_UNIX,syscall.SOCK_STREAM,0) EventRecvFd = sv[0] EventSendFd = sv[1] if err != nil { fmt.Printf("--De-- EventSock created[%v,%v](%v)\n", EventRecvFd,EventSendFd,err) } } } var buf = []byte{ byte(event)} n,err := syscall.Write(EventSendFd,buf) if err != nil { fmt.Printf("--De-- putEvent[%v](%3v)(%v %v)\n",EventSendFd,event,n,err) } } func ungets(str string){ for _,ch := range str { putEvent(int(ch),0) } } func (gsh*GshContext)xReplay(argv[]string){ hix := 0 tempo := 1.0 xtempo := 1.0 repeat := 1 for _,a := range argv { // tempo if strBegins(a,"x") { fmt.Sscanf(a[1:],"%f",&xtempo) tempo = 1 / xtempo //fprintf(stderr,"--Dr-- tempo=[%v]%v\n",a[2:],tempo); }else if strBegins(a,"r") { // repeat fmt.Sscanf(a[1:],"%v",&repeat) }else if strBegins(a,"!") { fmt.Sscanf(a[1:],"%d",&hix) }else{ fmt.Sscanf(a,"%d",&hix) } } if hix == 0 || len(argv) <= 1 { hix = len(gsh.CommandHistory)-1 } fmt.Printf("--Ir-- Replay(!%v x%v r%v)\n",hix,xtempo,repeat) //dumpEvents(hix) //gsh.xScanReplay(hix,false,repeat,tempo,argv) go gsh.xScanReplay(hix,true,repeat,tempo,argv) } // syscall.Select // 2020-0827 GShell-0.2.3 /* func FpollIn1(fp *os.File,usec int)(uintptr){ nfd := 1 rdv := syscall.FdSet {} fd1 := fp.Fd() bank1 := fd1/32 mask1 := int32(1 << fd1) rdv.Bits[bank1] = mask1 fd2 := -1 bank2 := -1 var mask2 int32 = 0 if 0 <= EventRecvFd { fd2 = EventRecvFd nfd = fd2 + 1 bank2 = fd2/32 mask2 = int32(1 << fd2) rdv.Bits[bank2] |= mask2 //fmt.Printf("--De-- EventPoll mask added [%d][%v][%v]\n",fd2,bank2,mask2) } tout := syscall.NsecToTimeval(int64(usec*1000)) //n,err := syscall.Select(nfd,&rdv,nil,nil,&tout) // spec. mismatch err := syscall.Select(nfd,&rdv,nil,nil,&tout) if err != nil { //fmt.Printf("--De-- select() err(%v)\n",err) } if err == nil { if 0 <= fd2 && (rdv.Bits[bank2] & mask2) != 0 { if false { fmt.Printf("--De-- got Event\n") } return uintptr(EventFdOffset + fd2) }else if (rdv.Bits[bank1] & mask1) != 0 { return uintptr(NormalFdOffset + fd1) }else{ return 1 } }else{ return 0 } } */ func fgetcTimeout1(fp *os.File,usec int)(int){ READ1: //readyFd := FpollIn1(fp,usec) readyFd := CFpollIn1(fp,usec) if readyFd < 100 { return EV_TIMEOUT } var buf [1]byte if EventFdOffset <= readyFd { fd := int(readyFd-EventFdOffset) _,err := syscall.Read(fd,buf[0:1]) if( err != nil ){ return EOF; }else{ if buf[0] == EV_MODE { recvEvent(fd) goto READ1 } return int(buf[0]) } } _,err := fp.Read(buf[0:1]) if( err != nil ){ return EOF; }else{ return int(buf[0]) } } func visibleChar(ch int)(string){ switch { case '!' <= ch && ch <= '~': return string(ch) } switch ch { case ' ': return "\\s" case '\n': return "\\n" case '\r': return "\\r" case '\t': return "\\t" } switch ch { case 0x00: return "NUL" case 0x07: return "BEL" case 0x08: return "BS" case 0x0E: return "SO" case 0x0F: return "SI" case 0x1B: return "ESC" case 0x7F: return "DEL" } switch ch { case EV_IDLE: return fmt.Sprintf("IDLE") case EV_MODE: return fmt.Sprintf("MODE") } return fmt.Sprintf("%X",ch) } func recvEvent(fd int){ var buf = make([]byte,1) _,_ = syscall.Read(fd,buf[0:1]) if( buf[0] != 0 ){ romkanmode = true }else{ romkanmode = false } } func (gsh*GshContext)xScanReplay(hix int,replay bool,repeat int,tempo float64,argv[]string){ var Start time.Time var events = []Event{} for _,e := range Events { if hix == 0 || e.CmdIndex == hix { events = append(events,e) } } elen := len(events) if 0 < elen { if events[elen-1].event == EV_IDLE { events = events[0:elen-1] } } for r := 0; r < repeat; r++ { for i,e := range events { nano := e.when.Nanosecond() micro := nano / 1000 if Start.Second() == 0 { Start = time.Now() } diff := time.Now().Sub(Start) if replay { if e.event != EV_IDLE { putEvent(e.event,0) if e.event == EV_MODE { // event with arg putEvent(int(e.evarg),0) } } }else{ fmt.Printf("%7.3fms #%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n", float64(diff)/1000000.0, i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event), float64(e.evarg)/1000000.0) } if e.event == EV_IDLE { d := time.Duration(float64(time.Duration(e.evarg)) * tempo) //nsleep(time.Duration(e.evarg)) nsleep(d) } } } } func dumpEvents(arg[]string){ hix := 0 if 1 < len(arg) { fmt.Sscanf(arg[1],"%d",&hix) } for i,e := range Events { nano := e.when.Nanosecond() micro := nano / 1000 //if e.event != EV_TIMEOUT { if hix == 0 || e.CmdIndex == hix { fmt.Printf("#%-3v !%-3v [%v.%06d] %3v %02X %-4v %10.3fms\n",i, e.CmdIndex, e.when.Format(time.Stamp),micro, e.event,e.event,visibleChar(e.event),float64(e.evarg)/1000000.0) } //} } } func fgetcTimeout(fp *os.File,usec int)(int){ ch := fgetcTimeout1(fp,usec) if ch != EV_TIMEOUT { now := time.Now() if 0 < len(Events) { last := Events[len(Events)-1] dura := int64(now.Sub(last.when)) Events = append(Events,Event{last.when,EV_IDLE,dura,last.CmdIndex}) } Events = append(Events,Event{time.Now(),ch,0,CmdIndex}) } return ch } var AtConsoleLineTop = true var TtyMaxCol = 72 // to be obtained by ioctl? var EscTimeout = (100*1000) var ( MODE_VicMode bool // vi compatible command mode MODE_ShowMode bool romkanmode bool // shown translation mode, the mode to be retained MODE_Recursive bool // recursive translation MODE_CapsLock bool // software CapsLock MODE_LowerLock bool // force lower-case character lock MODE_ViInsert int // visible insert mode, should be like "I" icon in X Window MODE_ViTrace bool // output newline before translation ) type IInput struct { lno int lastlno int pch []int // input queue prompt string line string right string inJmode bool pinJmode bool waitingMeta string // waiting meta character LastCmd string } func (iin*IInput)Getc(timeoutUs int)(int){ ch1 := EOF ch2 := EOF ch3 := EOF if( 0 < len(iin.pch) ){ // deQ ch1 = iin.pch[0] iin.pch = iin.pch[1:] }else{ ch1 = fgetcTimeout(stdin,timeoutUs); } if( ch1 == 033 ){ /// escape sequence ch2 = fgetcTimeout(stdin,EscTimeout); if( ch2 == EV_TIMEOUT ){ }else{ ch3 = fgetcTimeout(stdin,EscTimeout); if( ch3 == EV_TIMEOUT ){ iin.pch = append(iin.pch,ch2) // enQ }else{ switch( ch2 ){ default: iin.pch = append(iin.pch,ch2) // enQ iin.pch = append(iin.pch,ch3) // enQ case '[': switch( ch3 ){ case 'A': ch1 = GO_UP; // ^ case 'B': ch1 = GO_DOWN; // v case 'C': ch1 = GO_RIGHT; // > case 'D': ch1 = GO_LEFT; // < case '3': ch4 := fgetcTimeout(stdin,EscTimeout); if( ch4 == '~' ){ //fprintf(stderr,"x[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); ch1 = DEL_RIGHT } } case '\\': //ch4 := fgetcTimeout(stdin,EscTimeout); //fprintf(stderr,"y[%02X %02X %02X %02X]\n",ch1,ch2,ch3,ch4); switch( ch3 ){ case '~': ch1 = DEL_RIGHT } } } } } return ch1 } func (inn*IInput)clearline(){ var i int fprintf(stderr,"\r"); // should be ANSI ESC sequence for i = 0; i < TtyMaxCol; i++ { // to the max. position in this input action fputc(' ',os.Stderr); } fprintf(stderr,"\r"); } func (iin*IInput)Redraw(){ redraw(iin,iin.lno,iin.line,iin.right) } func redraw(iin *IInput,lno int,line string,right string){ inMeta := false showMode := "" showMeta := "" // visible Meta mode on the cursor position showLino := fmt.Sprintf("!%d! ",lno) InsertMark := "" // in visible insert mode if MODE_VicMode { }else if 0 < len(iin.right) { InsertMark = " " } if( 0 < len(iin.waitingMeta) ){ inMeta = true if iin.waitingMeta[0] != 033 { showMeta = iin.waitingMeta } } if( romkanmode ){ //romkanmark = " *"; }else{ //romkanmark = ""; } if MODE_ShowMode { romkan := "--" inmeta := "-" inveri := "" if MODE_CapsLock { inmeta = "A" } if MODE_LowerLock { inmeta = "a" } if MODE_ViTrace { inveri = "v" } if MODE_VicMode { inveri = ":" } if romkanmode { romkan = "\343\201\202" if MODE_CapsLock { inmeta = "R" }else{ inmeta = "r" } } if inMeta { inmeta = "\\" } showMode = "["+romkan+inmeta+inveri+"]"; } Pre := "\r" + showMode + showLino Output := "" Left := "" Right := "" if romkanmode { Left = convs(line) Right = InsertMark+convs(right) }else{ Left = line Right = InsertMark+right } Output = Pre+Left if MODE_ViTrace { Output += iin.LastCmd } Output += showMeta+Right for len(Output) < TtyMaxCol { // to the max. position that may be dirty Output += " " // should be ANSI ESC sequence // not necessary just after newline } Output += Pre+Left+showMeta // to set the cursor to the current input position fprintf(stderr,"%s",Output) if MODE_ViTrace { if 0 < len(iin.LastCmd) { iin.LastCmd = "" fprintf(stderr,"\r\n") } } AtConsoleLineTop = false } // utf8 func delHeadChar(str string)(rline string,head string){ _,clen := utf8.DecodeRune([]byte(str)) head = string(str[0:clen]) return str[clen:],head } func delTailChar(str string)(rline string, last string){ var i = 0 var clen = 0 for { _,siz := utf8.DecodeRune([]byte(str)[i:]) if siz <= 0 { break } clen = siz i += siz } last = str[len(str)-clen:] return str[0:len(str)-clen],last } // 3> for output and history // 4> for keylog? // Command Line Editor func xgetline(lno int, prevline string, gsh*GshContext)(string){ var iin IInput iin.lastlno = lno iin.lno = lno CmdIndex = len(gsh.CommandHistory) if( isatty(0) == 0 ){ if( sfgets(&iin.line,LINESIZE,stdin) == NULL ){ iin.line = "exit\n"; }else{ } return iin.line } if( true ){ //var pts string; //pts = ptsname(0); //pts = ttyname(0); //fprintf(stderr,"--pts[0] = %s\n",pts?pts:"?"); } if( false ){ fprintf(stderr,"! "); fflush(stderr); sfgets(&iin.line,LINESIZE,stdin); return iin.line } system("/bin/stty -echo -icanon"); xline := iin.xgetline1(prevline,gsh) system("/bin/stty echo sane"); return xline } func (iin*IInput)Translate(cmdch int){ romkanmode = !romkanmode; if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); }else if( cmdch == 'J' ){ fprintf(stderr,"J\r\n"); iin.inJmode = true } iin.Redraw(); loadDefaultDic(cmdch); iin.Redraw(); } func (iin*IInput)Replace(cmdch int){ iin.LastCmd = fmt.Sprintf("\\%v",string(cmdch)) iin.Redraw(); loadDefaultDic(cmdch); dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" if( cmdch == 'I' ){ fprintf(stderr,"I\r\n"); iin.inJmode = true } iin.Redraw(); } // aa 12 a1a1 func isAlpha(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } return false } func isAlnum(ch rune)(bool){ if 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' { return true } if '0' <= ch && ch <= '9' { return true } return false } // 0.2.8 2020-0901 created // DecodeRuneInString func (iin*IInput)GotoTOPW(){ str := iin.line i := len(str) if i <= 0 { return } //i0 := i i -= 1 lastSize := 0 var lastRune rune var found = -1 for 0 < i { // skip preamble spaces lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if !isAlnum(lastRune) { // character, type, or string to be searched i -= lastSize continue } break } for 0 < i { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { continue } // not the character top if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i -= lastSize } if found < 0 && i == 0 { found = 0 } if 0 <= found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word i += lastSize } iin.right = str[i:] + iin.right if 0 < i { iin.line = str[0:i] }else{ iin.line = "" } } //fmt.Printf("\n(%d,%d,%d)[%s][%s]\n",i0,i,found,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoENDW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var lastW = 0 i := 0 inWord := false lastRune,lastSize = utf8.DecodeRuneInString(str[0:]) if isAlnum(lastRune) { r,z := utf8.DecodeRuneInString(str[lastSize:]) if 0 < z && isAlnum(r) { inWord = true } } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i // the last alnum if in alnum word i += lastSize } if inWord { goto DISP } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if isAlnum(lastRune) { // character, type, or string to be searched break } i += lastSize } for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched break } lastW = i i += lastSize } DISP: if 0 < lastW { iin.line = iin.line + str[0:lastW] iin.right = str[lastW:] } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0901 created func (iin*IInput)GotoNEXTW(){ str := iin.right if len(str) <= 0 { return } lastSize := 0 var lastRune rune var found = -1 i := 1 for i < len(str) { lastRune,lastSize = utf8.DecodeRuneInString(str[i:]) if lastSize <= 0 { break } // broken data? if !isAlnum(lastRune) { // character, type, or string to be searched found = i break } i += lastSize } if 0 < found { if isAlnum(lastRune) { // or non-kana character }else{ // when positioning to the top o the word found += lastSize } iin.line = iin.line + str[0:found] if 0 < found { iin.right = str[found:] }else{ iin.right = "" } } //fmt.Printf("\n(%d)[%s][%s]\n",i,iin.line,iin.right) //fmt.Printf("") // set debug messae at the end of line } // 0.2.8 2020-0902 created func (iin*IInput)GotoPAIRCH(){ str := iin.right if len(str) <= 0 { return } lastRune,lastSize := utf8.DecodeRuneInString(str[0:]) if lastSize <= 0 { return } forw := false back := false pair := "" switch string(lastRune){ case "{": pair = "}"; forw = true case "}": pair = "{"; back = true case "(": pair = ")"; forw = true case ")": pair = "("; back = true case "[": pair = "]"; forw = true case "]": pair = "["; back = true case "<": pair = ">"; forw = true case ">": pair = "<"; back = true case "\"": pair = "\""; // context depednet, can be f" or back-double quote case "'": pair = "'"; // context depednet, can be f' or back-quote // case Japanese Kakkos } if forw { iin.SearchForward(pair) } if back { iin.SearchBackward(pair) } } // 0.2.8 2020-0902 created func (iin*IInput)SearchForward(pat string)(bool){ right := iin.right found := -1 i := 0 if strBegins(right,pat) { _,z := utf8.DecodeRuneInString(right[i:]) if 0 < z { i += z } } for i < len(right) { if strBegins(right[i:],pat) { found = i break } _,z := utf8.DecodeRuneInString(right[i:]) if z <= 0 { break } i += z } if 0 <= found { iin.line = iin.line + right[0:found] iin.right = iin.right[found:] return true }else{ return false } } // 0.2.8 2020-0902 created func (iin*IInput)SearchBackward(pat string)(bool){ line := iin.line found := -1 i := len(line)-1 for i = i; 0 <= i; i-- { _,z := utf8.DecodeRuneInString(line[i:]) if z <= 0 { continue } //fprintf(stderr,"-- %v %v\n",pat,line[i:]) if strBegins(line[i:],pat) { found = i break } } //fprintf(stderr,"--%d\n",found) if 0 <= found { iin.right = line[found:] + iin.right iin.line = line[0:found] return true }else{ return false } } // 0.2.8 2020-0902 created // search from top, end, or current position func (gsh*GshContext)SearchHistory(pat string, forw bool)(bool,string){ if forw { for _,v := range gsh.CommandHistory { if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } }else{ hlen := len(gsh.CommandHistory) for i := hlen-1; 0 < i ; i-- { v := gsh.CommandHistory[i] if 0 <= strings.Index(v.CmdLine,pat) { //fprintf(stderr,"\n--De-- found !%v [%v]%v\n",i,pat,v.CmdLine) return true,v.CmdLine } } } //fprintf(stderr,"\n--De-- not-found(%v)\n",pat) return false,"(Not Found in History)" } // 0.2.8 2020-0902 created func (iin*IInput)GotoFORWSTR(pat string,gsh*GshContext){ found := false if 0 < len(iin.right) { found = iin.SearchForward(pat) } if !found { found,line := gsh.SearchHistory(pat,true) if found { iin.line = line iin.right = "" } } } func (iin*IInput)GotoBACKSTR(pat string, gsh*GshContext){ found := false if 0 < len(iin.line) { found = iin.SearchBackward(pat) } if !found { found,line := gsh.SearchHistory(pat,false) if found { iin.line = line iin.right = "" } } } func (iin*IInput)getstring1(prompt string)(string){ // should be editable iin.clearline(); fprintf(stderr,"\r%v",prompt) str := "" for { ch := iin.Getc(10*1000*1000) if ch == '\n' || ch == '\r' { break } sch := string(ch) str += sch fprintf(stderr,"%s",sch) } return str } // search pattern must be an array and selectable with ^N/^P var SearchPat = "" var SearchForw = true func (iin*IInput)xgetline1(prevline string, gsh*GshContext)(string){ var ch int; MODE_ShowMode = false MODE_VicMode = false iin.Redraw(); first := true for cix := 0; ; cix++ { iin.pinJmode = iin.inJmode iin.inJmode = false ch = iin.Getc(1000*1000) if ch != EV_TIMEOUT && first { first = false mode := 0 if romkanmode { mode = 1 } now := time.Now() Events = append(Events,Event{now,EV_MODE,int64(mode),CmdIndex}) } if ch == 033 { MODE_ShowMode = true MODE_VicMode = !MODE_VicMode iin.Redraw(); continue } if MODE_VicMode { switch ch { case '0': ch = GO_TOPL case '$': ch = GO_ENDL case 'b': ch = GO_TOPW case 'e': ch = GO_ENDW case 'w': ch = GO_NEXTW case '%': ch = GO_PAIRCH case 'j': ch = GO_DOWN case 'k': ch = GO_UP case 'h': ch = GO_LEFT case 'l': ch = GO_RIGHT case 'x': ch = DEL_RIGHT case 'a': MODE_VicMode = !MODE_VicMode ch = GO_RIGHT case 'i': MODE_VicMode = !MODE_VicMode iin.Redraw(); continue case '~': right,head := delHeadChar(iin.right) if len([]byte(head)) == 1 { ch = int(head[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.right = string(ch) + right } iin.Redraw(); continue case 'f': // GO_FORWCH iin.Redraw(); ch = iin.Getc(3*1000*1000) if ch == EV_TIMEOUT { iin.Redraw(); continue } SearchPat = string(ch) SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '/': SearchPat = iin.getstring1("/") // should be editable SearchForw = true iin.GotoFORWSTR(SearchPat,gsh) iin.Redraw(); continue case '?': SearchPat = iin.getstring1("?") // should be editable SearchForw = false iin.GotoBACKSTR(SearchPat,gsh) iin.Redraw(); continue case 'n': if SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue case 'N': if !SearchForw { iin.GotoFORWSTR(SearchPat,gsh) }else{ iin.GotoBACKSTR(SearchPat,gsh) } iin.Redraw(); continue } } switch ch { case GO_TOPW: iin.GotoTOPW() iin.Redraw(); continue case GO_ENDW: iin.GotoENDW() iin.Redraw(); continue case GO_NEXTW: // to next space then iin.GotoNEXTW() iin.Redraw(); continue case GO_PAIRCH: iin.GotoPAIRCH() iin.Redraw(); continue } //fprintf(stderr,"A[%02X]\n",ch); if( ch == '\\' || ch == 033 ){ MODE_ShowMode = true metach := ch iin.waitingMeta = string(ch) iin.Redraw(); // set cursor //fprintf(stderr,"???\b\b\b") ch = fgetcTimeout(stdin,2000*1000) // reset cursor iin.waitingMeta = "" cmdch := ch if( ch == EV_TIMEOUT ){ if metach == 033 { continue } ch = metach }else /* if( ch == 'm' || ch == 'M' ){ mch := fgetcTimeout(stdin,1000*1000) if mch == 'r' { romkanmode = true }else{ romkanmode = false } continue }else */ if( ch == 'k' || ch == 'K' ){ MODE_Recursive = !MODE_Recursive iin.Translate(cmdch); continue }else if( ch == 'j' || ch == 'J' ){ iin.Translate(cmdch); continue }else if( ch == 'i' || ch == 'I' ){ iin.Replace(cmdch); continue }else if( ch == 'l' || ch == 'L' ){ MODE_LowerLock = !MODE_LowerLock MODE_CapsLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'u' || ch == 'U' ){ MODE_CapsLock = !MODE_CapsLock MODE_LowerLock = false if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'v' || ch == 'V' ){ MODE_ViTrace = !MODE_ViTrace if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else if( ch == 'c' || ch == 'C' ){ if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) if len([]byte(tail)) == 1 { ch = int(tail[0]) if( 'a' <= ch && ch <= 'z' ){ ch = ch + 'A'-'a' }else if( 'A' <= ch && ch <= 'Z' ){ ch = ch + 'a'-'A' } iin.line = xline + string(ch) } } if MODE_ViTrace { fprintf(stderr,"%v\r\n",string(cmdch)); } iin.Redraw(); continue }else{ iin.pch = append(iin.pch,ch) // push ch = '\\' } } switch( ch ){ case 'P'-0x40: ch = GO_UP case 'N'-0x40: ch = GO_DOWN case 'B'-0x40: ch = GO_LEFT case 'F'-0x40: ch = GO_RIGHT } //fprintf(stderr,"B[%02X]\n",ch); switch( ch ){ case 0: continue; case '\t': iin.Replace('j'); continue case 'X'-0x40: iin.Replace('j'); continue case EV_TIMEOUT: iin.Redraw(); if iin.pinJmode { fprintf(stderr,"\\J\r\n") iin.inJmode = true } continue case GO_UP: if iin.lno == 1 { continue } cmd,ok := gsh.cmdStringInHistory(iin.lno-1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno - 1 } iin.Redraw(); continue case GO_DOWN: cmd,ok := gsh.cmdStringInHistory(iin.lno+1) if ok { iin.line = cmd iin.right = "" iin.lno = iin.lno + 1 }else{ iin.line = "" iin.right = "" if iin.lno == iin.lastlno-1 { iin.lno = iin.lno + 1 } } iin.Redraw(); continue case GO_LEFT: if 0 < len(iin.line) { xline,tail := delTailChar(iin.line) iin.line = xline iin.right = tail + iin.right } iin.Redraw(); continue; case GO_RIGHT: if( 0 < len(iin.right) && iin.right[0] != 0 ){ xright,head := delHeadChar(iin.right) iin.right = xright iin.line += head } iin.Redraw(); continue; case EOF: goto EXIT; case 'R'-0x40: // replace dst := convs(iin.line+iin.right); iin.line = dst iin.right = "" iin.Redraw(); continue; case 'T'-0x40: // just show the result readDic(); romkanmode = !romkanmode; iin.Redraw(); continue; case 'L'-0x40: iin.Redraw(); continue case 'K'-0x40: iin.right = "" iin.Redraw(); continue case 'E'-0x40: iin.line += iin.right iin.right = "" iin.Redraw(); continue case 'A'-0x40: iin.right = iin.line + iin.right iin.line = "" iin.Redraw(); continue case 'U'-0x40: iin.line = "" iin.right = "" iin.clearline(); iin.Redraw(); continue; case DEL_RIGHT: if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } continue; case 0x7F: // BS? not DEL if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } /* else if( 0 < len(iin.right) ){ iin.right,_ = delHeadChar(iin.right) iin.Redraw(); } */ continue; case 'H'-0x40: if( 0 < len(iin.line) ){ iin.line,_ = delTailChar(iin.line) iin.Redraw(); } continue; } if( ch == '\n' || ch == '\r' ){ iin.line += iin.right; iin.right = "" iin.Redraw(); fputc(ch,stderr); AtConsoleLineTop = true break; } if MODE_CapsLock { if 'a' <= ch && ch <= 'z' { ch = ch+'A'-'a' } } if MODE_LowerLock { if 'A' <= ch && ch <= 'Z' { ch = ch+'a'-'A' } } iin.line += string(ch); iin.Redraw(); } EXIT: return iin.line + iin.right; } func getline_main(){ line := xgetline(0,"",nil) fprintf(stderr,"%s\n",line); /* dp = strpbrk(line,"\r\n"); if( dp != NULL ){ *dp = 0; } if( 0 ){ fprintf(stderr,"\n(%d)\n",int(strlen(line))); } if( lseek(3,0,0) == 0 ){ if( romkanmode ){ var buf [8*1024]byte; convs(line,buff); strcpy(line,buff); } write(3,line,strlen(line)); ftruncate(3,lseek(3,0,SEEK_CUR)); //fprintf(stderr,"outsize=%d\n",(int)lseek(3,0,SEEK_END)); lseek(3,0,SEEK_SET); close(3); }else{ fprintf(stderr,"\r\ngotline: "); trans(line); //printf("%s\n",line); printf("\n"); } */ } //== end ========================================================= getline // // $USERHOME/.gsh/ // gsh-rc.txt, or gsh-configure.txt // gsh-history.txt // gsh-aliases.txt // should be conditional? // func (gshCtx *GshContext)gshSetupHomedir()(bool) { homedir,found := userHomeDir() if !found { fmt.Printf("--E-- You have no UserHomeDir\n") return true } gshhome := homedir + "/" + GSH_HOME _, err2 := os.Stat(gshhome) if err2 != nil { err3 := os.Mkdir(gshhome,0700) if err3 != nil { fmt.Printf("--E-- Could not Create %s (%s)\n", gshhome,err3) return true } fmt.Printf("--I-- Created %s\n",gshhome) } gshCtx.GshHomeDir = gshhome return false } func setupGshContext()(GshContext,bool){ gshPA := syscall.ProcAttr { "", // the staring directory os.Environ(), // environ[] []uintptr{os.Stdin.Fd(),os.Stdout.Fd(),os.Stderr.Fd()}, nil, // OS specific } cwd, _ := os.Getwd() gshCtx := GshContext { cwd, // StartDir "", // GetLine []GChdirHistory { {cwd,time.Now(),0} }, // ChdirHistory gshPA, []GCommandHistory{}, //something for invokation? GCommandHistory{}, // CmdCurrent false, []int{}, syscall.Rusage{}, "", // GshHomeDir Ttyid(), false, false, []PluginInfo{}, []string{}, " ", "v", ValueStack{}, GServer{"",""}, // LastServer "", // RSERV cwd, // RWD CheckSum{}, } err := gshCtx.gshSetupHomedir() return gshCtx, err } func (gsh*GshContext)gshelllh(gline string)(bool){ ghist := gsh.CmdCurrent ghist.WorkDir,_ = os.Getwd() ghist.WorkDirX = len(gsh.ChdirHistory)-1 //fmt.Printf("--D--ChdirHistory(@%d)\n",len(gsh.ChdirHistory)) ghist.StartAt = time.Now() rusagev1 := Getrusagev() gsh.CmdCurrent.FoundFile = []string{} fin := gsh.tgshelll(gline) rusagev2 := Getrusagev() ghist.Rusagev = RusageSubv(rusagev2,rusagev1) ghist.EndAt = time.Now() ghist.CmdLine = gline ghist.FoundFile = gsh.CmdCurrent.FoundFile /* record it but not show in list by default if len(gline) == 0 { continue } if gline == "hi" || gline == "history" { // don't record it continue } */ gsh.CommandHistory = append(gsh.CommandHistory, ghist) return fin } // Main loop func script(gshCtxGiven *GshContext) (_ GshContext) { gshCtxBuf,err0 := setupGshContext() if err0 { return gshCtxBuf; } gshCtx := &gshCtxBuf //fmt.Printf("--I-- GSH_HOME=%s\n",gshCtx.GshHomeDir) //resmap() /* if false { gsh_getlinev, with_exgetline := which("PATH",[]string{"which","gsh-getline","-s"}) if with_exgetline { gsh_getlinev[0] = toFullpath(gsh_getlinev[0]) gshCtx.GetLine = toFullpath(gsh_getlinev[0]) }else{ fmt.Printf("--W-- No gsh-getline found. Using internal getline.\n"); } } */ ghist0 := gshCtx.CmdCurrent // something special, or gshrc script, or permanent history gshCtx.CommandHistory = append(gshCtx.CommandHistory,ghist0) prevline := "" skipping := false for hix := len(gshCtx.CommandHistory); ; { gline := gshCtx.getline(hix,skipping,prevline) if skipping { if strings.Index(gline,"fi") == 0 { fmt.Printf("fi\n"); skipping = false; }else{ //fmt.Printf("%s\n",gline); } continue } if strings.Index(gline,"if") == 0 { //fmt.Printf("--D-- if start: %s\n",gline); skipping = true; continue } if false { os.Stdout.Write([]byte("gotline:")) os.Stdout.Write([]byte(gline)) os.Stdout.Write([]byte("\n")) } gline = strsubst(gshCtx,gline,true) if false { fmt.Printf("fmt.Printf %%v - %v\n",gline) fmt.Printf("fmt.Printf %%s - %s\n",gline) fmt.Printf("fmt.Printf %%x - %s\n",gline) fmt.Printf("fmt.Printf %%U - %s\n",gline) fmt.Printf("Stouut.Write -") os.Stdout.Write([]byte(gline)) fmt.Printf("\n") } /* // should be cared in substitution ? if 0 < len(gline) && gline[0] == '!' { xgline, set, err := searchHistory(gshCtx,gline) if err { continue } if set { // set the line in command line editor } gline = xgline } */ fin := gshCtx.gshelllh(gline) if fin { break; } prevline = gline; hix++; } return *gshCtx } func main() { gshCtxBuf := GshContext{} gsh := &gshCtxBuf argv := os.Args if( isin("wss",argv) ){ gj_server(argv[1:]); return; } if( isin("wsc",argv) ){ gj_client(argv[1:]); return; } if 1 < len(argv) { if isin("version",argv){ gsh.showVersion(argv) return } if argv[1] == "gj" { if argv[2] == "listen" { go gj_server(argv[2:]); } if argv[2] == "server" { go gj_server(argv[2:]); } if argv[2] == "serve" { go gj_server(argv[2:]); } if argv[2] == "client" { go gj_client(argv[2:]); } if argv[2] == "join" { go gj_client(argv[2:]); } } comx := isinX("-c",argv) if 0 < comx { gshCtxBuf,err := setupGshContext() gsh := &gshCtxBuf if !err { gsh.gshellv(argv[comx+1:]) } return } } if 1 < len(argv) && isin("-s",argv) { }else{ gsh.showVersion(append(argv,[]string{"-l","-a"}...)) } script(nil) //gshCtx := script(nil) //gshelll(gshCtx,"time") } //
//
Considerations
// - inter gsh communication, possibly running in remote hosts -- to be remote shell // - merged histories of multiple parallel gsh sessions // - alias as a function or macro // - instant alias end environ export to the permanent > ~/.gsh/gsh-alias and gsh-environ // - retrieval PATH of files by its type // - gsh as an IME with completion using history and file names as dictionaies // - gsh a scheduler in precise time of within a millisecond // - all commands have its subucomand after "---" symbol // - filename expansion by "-find" command // - history of ext code and output of each commoand // - "script" output for each command by pty-tee or telnet-tee // - $BUILTIN command in PATH to show the priority // - "?" symbol in the command (not as in arguments) shows help request // - searching command with wild card like: which ssh-* // - longformat prompt after long idle time (should dismiss by BS) // - customizing by building plugin and dynamically linking it // - generating syntactic element like "if" by macro expansion (like CPP) >> alias // - "!" symbol should be used for negation, don't wast it just for job control // - don't put too long output to tty, record it into GSH_HOME/session-id/comand-id.log // - making canonical form of command at the start adding quatation or white spaces // - name(a,b,c) ... use "(" and ")" to show both delimiter and realm // - name? or name! might be useful // - htar format - packing directory contents into a single html file using data scheme // - filepath substitution shold be done by each command, expecially in case of builtins // - @N substition for the history of working directory, and @spec for more generic ones // - @dir prefix to do the command at there, that means like (chdir @dir; command) // - GSH_PATH for plugins // - standard command output: list of data with name, size, resouce usage, modified time // - generic sort key option -nm name, -sz size, -ru rusage, -ts start-time, -tm mod-time // -wc word-count, grep match line count, ... // - standard command execution result: a list of string, -tm, -ts, -ru, -sz, ... // - -tailf-filename like tail -f filename, repeat close and open before read // - max. size and max. duration and timeout of (generated) data transfer // - auto. numbering, aliasing, IME completion of file name (especially rm of quieer name) // - IME "?" at the top of the command line means searching history // - IME %d/0x10000/ %x/ffff/ // - IME ESC to go the edit mode like in vi, and use :command as :s/x/y/g to edit history // - gsh in WebAssembly // - gsh as a HTTP server of online-manual //---END--- (^-^)//ITS more
// var WorldDic = // "data:text/dic;base64,"+ "Ly8gTXlJTUUvMC4wLjEg6L6e5pu4ICgyMDIwLTA4MTlhKQpzZWthaSDkuJbnlYwKa28g44GT"+ "Cm5uIOOCkwpuaSDjgasKY2hpIOOBoQp0aSDjgaEKaGEg44GvCnNlIOOBmwprYSDjgYsKaSDj"+ "gYQK"; // var WnnDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL2Rp"+ "Y3ZlcglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNXbm5ccy8vXHMyMDIwLTA4MzAK"+ "R1NoZWxsCUdTaGVsbArjgo/jgZ/jgZcJ56eBCndhdGFzaGkJ56eBCndhdGFzaQnnp4EK44Gq"+ "44G+44GICeWQjeWJjQpuYW1hZQnlkI3liY0K44Gq44GL44GuCeS4remHjgpuYWthbm8J5Lit"+ "6YeOCndhCeOCjwp0YQnjgZ8Kc2kJ44GXCnNoaQnjgZcKbm8J44GuCm5hCeOBqgptYQnjgb4K"+ "ZQnjgYgKaGEJ44GvCm5hCeOBqgprYQnjgYsKbm8J44GuCmRlCeOBpwpzdQnjgZkKZVxzCWVj"+ "aG8KZGljCWRpYwplY2hvCWVjaG8KcmVwbGF5CXJlcGxheQpyZXBlYXQJcmVwZWF0CmR0CWRh"+ "dGVccysnJVklbSVkLSVIOiVNOiVTJwp0aW9uCXRpb24KJXQJJXQJLy8gdG8gYmUgYW4gYWN0"+ "aW9uCjwvdGV4dGFyZWE+Cg==" // var SumomoDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTdW1vbW9ccy8vXHMyMDIwLTA4MzAK"+ "c3UJ44GZCm1vCeOCggpubwnjga4KdQnjgYYKY2hpCeOBoQp0aQnjgaEKdWNoaQnlhoUKdXRp"+ "CeWGhQpzdW1vbW8J44GZ44KC44KCCnN1bW9tb21vCeOBmeOCguOCguOCggptb21vCeahgwpt"+ "b21vbW8J5qGD44KCCiwsCeOAgQouLgnjgIIKPC90ZXh0YXJlYT4K" // var SijimiDic = // "data:text/dic;base64,"+ "PG1ldGEgY2hhcnNldD0iVVRGLTgiPgo8dGV4dGFyZWEgY29scz04MCByb3dzPTQwPgovL3Zl"+ "cglHU2hlbGxcc0lNRVxzZGljdGlvbmFyeVxzZm9yXHNTaGlqaW1pXHMvL1xzMjAyMC0wODMw"+ "CnNpCeOBlwpzaGkJ44GXCmppCeOBmAptaQnjgb8KbmEJ44GqCmp1CeOBmOOChQp4eXUJ44KF"+ "CnUJ44GGCm5pCeOBqwprbwnjgZMKYnUJ44G2Cm5uCeOCkwpubwnjga4KY2hpCeOBoQp0aQnj"+ "gaEKa2EJ44GLCnJhCeOCiQosLAnjgIEKLi4J44CCCnhuYW5hCeS4gwp4anV1CeWNgQp4bmkJ"+ "5LqMCmtveAnlgIsKa29xCeWAiwprb3gJ5YCLCm5hbmFqdXVuaXgJNzIKbmFuYWp1dW5peHgJ"+ "77yX77ySCm5hbmFqdXVuaVgJ77yX77ySCuS4g+WNgeS6jHgJNzIKa29idW5uCeWAi+WIhgp0"+ "aWthcmFxCeOBoeOBi+OCiQp0aWthcmEJ5YqbCmNoaWthcmEJ5YqbCjwvdGV4dGFyZWE+Cg=" // var JA_JKLDic = // "data:text/dic;base64,"+ "Ly92ZXJsCU15SU1FamRpY2ptb3JzZWpKQWpKS0woMjAyMGowODE5KSheLV4pL1NhdG94SVRT"+ "CmtqamprbGtqa2tsa2psIOS4lueVjApqamtqamwJ44GCCmtqbAnjgYQKa2tqbAnjgYYKamtq"+ "amwJ44GICmtqa2trbAnjgYoKa2pra2wJ44GLCmpramtrbAnjgY0Ka2tramwJ44GPCmpramps"+ "CeOBkQpqampqbAnjgZMKamtqa2psCeOBlQpqamtqa2wJ44GXCmpqamtqbAnjgZkKa2pqamts"+ "CeOBmwpqamprbAnjgZ0KamtsCeOBnwpra2prbAnjgaEKa2pqa2wJ44GkCmtqa2pqbAnjgaYK"+ "a2tqa2tsCeOBqApramtsCeOBqgpqa2prbAnjgasKa2tra2wJ44GsCmpqa2psCeOBrQpra2pq"+ "bAnjga4Kamtra2wJ44GvCmpqa2tqbAnjgbIKampra2wJ44G1CmtsCeOBuApqa2tsCeOBuwpq"+ "a2tqbAnjgb4Ka2tqa2psCeOBvwpqbAnjgoAKamtra2psCeOCgQpqa2tqa2wJ44KCCmtqamwJ"+ "44KECmpra2pqbAnjgoYKampsCeOCiApra2tsCeOCiQpqamtsCeOCigpqa2pqa2wJ44KLCmpq"+ "amwJ44KMCmtqa2psCeOCjQpqa2psCeOCjwpramtramwJ44KQCmtqamtrbAnjgpEKa2pqamwJ"+ "44KSCmtqa2prbAnjgpMKa2pqa2psCeODvApra2wJ44KbCmtramprbAnjgpwKa2pramtqbAnj"+ "gIEK"; // // /*
References
*/ /*
Raw Source
Whole file
CSS part
JavaScript part
Builtin data part
*/ /*
(^_^)//{Hit j k l h}
CLOSE
*/ /*
GJ Console

*/ /*
Form Auto. Filling
Location: Username: Password: SessionId:
*/ /*
BlinderText // https://w3c.github.io/uievents/#event-type-keydown // // 2020-09-21 class BlinderText - textarea element not to be readable // // BlinderText attributes // bl_plainText - null // bl_hideChecksum - [false] // bl_showLength - [false] // bl_visible - [false] // data-bl_config - [] // - min. length // - max. length // - acceptable charset in generete text // function BlinderChecksum(text){ plain = text.bl_plainText; return strCRC32(plain,plain.length).toFixed(0); } function BlinderKeydown(ev){ pass = ev.target if( ev.code == 'Enter' ){ ev.preventDefault(); } ev.stopPropagation() } function BlinderKeyup1(ev){ blind = ev.target if( ev.code == 'Backspace'){ blind.bl_plainText = blind.bl_plainText.slice(0,blind.bl_plainText.length-1) }else if( and(ev.code == 'KeyV', ev.ctrlKey) ){ blind.bl_visible = !blind.bl_visible; }else if( and(ev.code == 'KeyL', ev.ctrlKey) ){ blind.bl_showLength = !blind.bl_showLength; }else if( and(ev.code == 'KeyU', ev.ctrlKey) ){ blind.bl_plainText = ""; }else if( and(ev.code == 'KeyR', ev.ctrlKey) ){ checksum = BlinderChecksum(blind); blind.bl_plainText = checksum; //.toString(32); }else if( ev.code == 'Enter' ){ ev.stopPropagation(); ev.preventDefault(); return; }else if( ev.key.length != 1 ){ console.log('KeyUp: '+ev.code+'/'+ev.key); return; }else{ blind.bl_plainText += ev.key; } leng = blind.bl_plainText.length; //console.log('KeyUp: '+ev.code+'/'+blind.bl_plainText); checksum = BlinderChecksum(blind) % 10; // show last one digit only visual = ''; if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '['; } if( !blind.bl_hideCheckSum ){ visual += '#'+checksum.toString(10); } if( blind.bl_showLength ){ visual += '/' + leng; } if( !blind.bl_hideCheckSum || blind.bl_showLength ){ visual += '] '; } if( blind.bl_visible ){ visual += blind.bl_plainText; }else{ visual += '*'.repeat(leng); } blind.value = visual; } function BlinderKeyup(ev){ BlinderKeyup1(ev); ev.stopPropagation(); } // https://w3c.github.io/uievents/#keyboardevent // https://w3c.github.io/uievents/#uievent // https://dom.spec.whatwg.org/#event function BlinderTextEvent(){ ev = event; blind = ev.target; console.log('Event '+ev.type+'@'+blind.nodeName+'#'+blind.id) if( ev.type == 'keyup' ){ BlinderKeyup(ev); }else if( ev.type == 'keydown' ){ BlinderKeydown(ev); }else{ console.log('thru-event '+ev.type+'@'+blind.nodeName+'#'+blind.id) } } //< textarea hidden id="BlinderTextClassDef" class="textField"" // onkeydown="BlinderTextEvent()" onkeyup="BlinderTextEvent()" // spellcheck="false">< /textarea> //< textarea hidden id="gj_pass1" // class="textField BlinderText" // placeholder="PassWord1" // onkeydown="BlinderTextEvent()" // onkeyup="BlinderTextEvent()" // spellcheck="false"< /textarea> function SetupBlinderText(parent,txa,phold){ if( txa == null ){ txa = document.createElement('textarea'); //txa.id = id; } txa.setAttribute('class','textField BlinderText'); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','BlinderTextEvent()'); txa.setAttribute('onkeyup','BlinderTextEvent()'); txa.setAttribute('spellcheck','false'); //txa.setAttribute('bl_plainText','false'); txa.bl_plainText = ''; //parent.appendChild(txa); } function DestroyBlinderText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); txa.bl_plainText = ''; } // // visible textarea like Username // function VisibleTextEvent(){ if( event.code == 'Enter' ){ if( event.target.NoEnter ){ event.preventDefault(); } } event.stopPropagation(); } function SetupVisibleText(parent,txa,phold){ if( false ){ txa.setAttribute('class','textField VisibleText'); }else{ newclass = txa.getAttribute('class'); if( and(newclass != null, newclass != '') ){ newclass += ' '; } newclass += 'VisibleText'; txa.setAttribute('class',newclass); } //console.log('SetupVisibleText class='+txa.class); txa.setAttribute('placeholder',phold); txa.setAttribute('onkeydown','VisibleTextEvent()'); txa.setAttribute('onkeyup', 'VisibleTextEvent()'); txa.setAttribute('spellcheck','false'); cols = txa.getAttribute('cols'); if( cols != null ){ txa.style.width = '580px'; //console.log('VisualText#'+txa.id+' cols='+cols) }else{ //console.log('VisualText#'+txa.id+' NO cols') } rows = txa.getAttribute('rows'); if( rows != null ){ txa.style.height = '30px'; txa.style.resize = 'both'; txa.NoEnter = false; }else{ txa.NoEnter = true; } } function DestroyVisibleText(txa){ txa.removeAttribute('class'); txa.removeAttribute('placeholder'); txa.removeAttribute('onkeydown'); txa.removeAttribute('onkeyup'); txa.removeAttribute('spellcheck'); cols = txa.removeAttribute('cols'); }
*/ /* */ // //
Golang / JavaScript Link // // 2020-0920 created // WS // WS // INSTALL: go get golang.org/x/net/websocket // INSTALL: sudo {apt,yum} install git (if git is not instlled yet) // import "golang.org/x/net/websocket" const gshws_origin = "http://locahost:9999" const gshws_server = "localhost:9999" const gshws_port = 9999 const gshws_path = "gjlink1" const gshws_url = "ws://"+gshws_server+"/"+gshws_path const GSHWS_MSGSIZE = (8*1024) func fmtstring(fmts string, params ...interface{})(string){ return fmt.Sprintf(fmts,params...) } func GSHWS_MARK(what string)(string){ now := time.Now() us := fmtstring("%06d",now.Nanosecond() / 1000) mark := "" if( !AtConsoleLineTop ){ mark += "\n" AtConsoleLineTop = true } mark += "["+now.Format(time.Stamp)+"."+us+"] -GJ-" + what + ": " return mark } func gchk(what string,err error){ if( err != nil ){ panic(GSHWS_MARK(what)+err.Error()) } } func glog(what string, fmts string, params ...interface{}){ fmt.Print(GSHWS_MARK(what)) fmt.Printf(fmts+"\n",params...) } var WSV = []*websocket.Conn{} func jsend(argv []string){ if len(argv) <= 1 { fmt.Printf("--Ij %v [-m] command arguments\n",argv[0]) return } argv = argv[1:] if( len(WSV) == 0 ){ fmt.Printf("--Ej-- No link now\n") return } if( 1 < len(WSV) ){ fmt.Printf("--Ij-- multiple links (%v)\n",len(WSV)) } multicast := false // should be filtered with regexp if( 0 < len(argv) && argv[0] == "-m" ){ multicast = true argv = argv[1:] } args := strings.Join(argv," ") now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) msg := fmtstring("%v SEND gshell|* %v",tstamp,args) if( multicast ){ for i,ws := range WSV { wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } }else{ i := 0 ws := WSV[i] wn,werr := ws.Write([]byte(msg)) if( werr != nil ){ fmt.Printf("[%v] wn=%v, werr=%v\n",i,wn,werr) } glog("SQ",fmtstring("(%v) %v",wn,msg)) } } func serv1(ws *websocket.Conn) { WSV = append(WSV,ws) //fmt.Print("\n") glog("CO","accepted connections[%v]",len(WSV)) //remoteAddr := ws.RemoteAddr //fmt.Printf("-- accepted %v\n",remoteAddr) //fmt.Printf("-- accepted %v\n",ws.Config()) //fmt.Printf("-- accepted %v\n",ws.Config().Header) //fmt.Printf("-- accepted %v // %v\n",ws,serv1) var reqb = make([]byte,GSHWS_MSGSIZE) for { rn, rerr := ws.Read(reqb) if( rerr != nil || rn < 0 ){ glog("SQ",fmtstring("(%v,%v)",rn,rerr)) break } req := string(reqb[0:rn]) glog("SQ",fmtstring("(%v) %v",rn,req)) margv := strings.Split(req," "); margv = margv[1:] if( 0 < len(margv) ){ if( margv[0] == "RESP" ){ // should forward to the destination continue; } } now := time.Now() msec := now.UnixNano() / 1000000; tstamp := fmtstring("%.3f",float64(msec)/1000.0) res := fmtstring("%v "+"CAST"+" %v",tstamp,req) wn, werr := ws.Write([]byte(res)) gchk("SE",werr) glog("SR",fmtstring("(%v) %v",wn,string(res))) } glog("SF","WS response finish") wsv := []*websocket.Conn{} wsx := 0 for i,v := range WSV { if( v != ws ){ wsx = i wsv = append(wsv,v) } } WSV = wsv //glog("CO","closed %v",ws) glog("CO","closed connection [%v/%v]",wsx+1,len(WSV)+1) ws.Close() } // url ::= [scheme://]host[:port][/path] func decomp_URL(url string){ } func full_wsURL(){ } func gj_server(argv []string) { gjserv := gshws_url gjport := gshws_server gjpath := gshws_path gjscheme := "ws" //cmd := argv[0] argv = argv[1:] if( 1 <= len(argv) ){ serv := argv[0] if( 0 < strings.Index(serv,"://") ){ schemev := strings.Split(serv,"://") gjscheme = schemev[0] serv = schemev[1] } if( 0 < strings.Index(serv,"/") ){ pathv := strings.Split(serv,"/") serv = pathv[0] gjpath = pathv[1] } servv := strings.Split(serv,":") host := "localhost" port := 9999 if( servv[0] != "" ){ host = servv[0] } if( len(servv) == 2 ){ fmt.Sscanf(servv[1],"%d",&port) } //glog("LC","hostport=%v (%v : %v)",servv,host,port) gjport = fmt.Sprintf("%v:%v",host,port) gjserv = gjscheme + "://" + gjport + "/" + gjpath } glog("LS",fmtstring("listening at %v",gjserv)) http.Handle("/"+gjpath,websocket.Handler(serv1)) err := error(nil) if( gjscheme == "wss" ){ // https://golang.org/pkg/net/http/#ListenAndServeTLS //err = http.ListenAndServeTLS(gjport,nil) }else{ err = http.ListenAndServe(gjport,nil) } gchk("LE",err) } func gj_client(argv []string) { glog("CS",fmtstring("connecting to %v",gshws_url)) ws, err := websocket.Dial(gshws_url,"",gshws_origin) gchk("C",err) var resb = make([]byte, GSHWS_MSGSIZE) for qi := 0; qi < 3; qi++ { req := fmtstring("Hello, GShell! (%v)",qi) wn, werr := ws.Write([]byte(req)) glog("QM",fmtstring("(%v) %v",wn,req)) gchk("QE",werr) rn, rerr := ws.Read(resb) gchk("RE",rerr) glog("RM",fmtstring("(%v) %v",rn,string(resb))) } glog("CF","WS request finish") } // //
/*
GJ Link

Execute command "gsh gj server" on the localhost and push the Join button:

*/ /* */ /*
Live HTML Snapshot
*/ /*
Event sharing

Inter-window communicaiton

frame0 >>> frame1 and frame2
frame1 >>> frame0 and frame2
frame2 >>> frame0 and frame1




*/ /* // /*
Wirtual Desktop

CosmoScreen 0.0.8

ScopeControl command keys
g ... grid on/off
i ... zoom in
o ... zoom out
s ... save current scope
r ... restore saved scope

Monitor < x wall-paper: WD-WallPaler03.png

Desktop < x

Display < x < <

Content X Y shift+wheel for horizontal scroll

Scopexx < | >

Scopeyy < | >

Scopezz < | >

Display

Overflo "scroll" imprisons windows inside the display

CosmoScreen 0.0.8
00:00

WirtualSpace 1.

Reload
Reload
Reload
*/ //
// // /*
SBSidebar

SBSidebar

// 2020-1006 its-more.jp-blog-60000-style.css
*/ //
// // // /*
Affiliate

Supportive Affiliate

*/ //
// // // /*
Font Selector

Font Selection

ArialGShell-Go012GShell-Go012GShell-Go012GShell-Go012
CourierGShell-Go012GShell-Go012GShell-Go012GShell-Go012
Courier NewGShell-Go012GShell-Go012GShell-Go012GShell-Go012
GeorgiaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
HelveticaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
VerdanaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
TimesGShell-Go012GShell-Go012GShell-Go012GShell-Go012
OsakaGShell-Go012GShell-Go012GShell-Go012GShell-Go012
MeiryoGShell-Go012GShell-Go012GShell-Go012GShell-Go012
YuMinchoGShell-Go012GShell-Go012GShell-Go012GShell-Go012
SerifGShell-Go012GShell-Go012GShell-Go012GShell-Go012
Sans-SerifGShell-Go012GShell-Go012GShell-Go012GShell-Go012
System-UIGShell-Go012GShell-Go012GShell-Go012GShell-Go012
MonospaceGShell-Go012GShell-Go012GShell-Go012GShell-Go012
CursiveGShell-Go012GShell-Go012GShell-Go012GShell-Go012
FantasyGShell-Go012GShell-Go012GShell-Go012GShell-Go012

Drawing Text on Canvas

Pixels Bold Italic

*/ //
// // // /*
Shading Canvas

Shading Canvas

Commands
Placement Mode
a ... apply (into absolute position)
j ... bring down (ArrowDown)
k ... bring up (ArrowUp)
h ... bring left (ArrowLeft)
l ... bring right (ArrowRight)
0 ... z-index = 0
+ ... z-index += 1
- ... z-index -= 1
r ... return to here (relative position)
c ... clear the log text
Note: the HTML text must be contenteditable to catch Key Event.
My Canvas.
*/ //
// // // /*
Character Map

Unicode Character Map

code 0x0000 - 0xFFFF in 3333 x 3333 pix. / zoom:0.30
  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፸፹፺፻፼፽፾፿ᎀᎁᎂᎃᎄᎅᎆᎇᎈᎉᎊᎋᎌᎍᎎᎏ᎐᎑᎒᎓᎔᎕᎖᎗᎘᎙᎚᎛᎜᎝᎞᎟ᎠᎡᎢᎣᎤᎥᎦᎧᎨᎩᎪᎫᎬᎭᎮᎯᎰᎱᎲᎳᎴᎵᎶᎷᎸᎹᎺᎻᎼᎽᎾᎿᏀᏁᏂᏃᏄᏅᏆᏇᏈᏉᏊᏋᏌᏍᏎᏏᏐᏑᏒᏓᏔᏕᏖᏗᏘᏙᏚᏛᏜᏝᏞᏟᏠᏡᏢᏣᏤᏥᏦᏧᏨᏩᏪᏫᏬᏭᏮᏯᏰᏱᏲᏳᏴᏵ᏶᏷ᏸᏹᏺᏻᏼᏽ᏾᏿᐀ᐁᐂᐃᐄᐅᐆᐇᐈᐉᐊᐋᐌᐍᐎᐏᐐᐑᐒᐓᐔᐕᐖᐗᐘᐙᐚᐛᐜᐝᐞᐟᐠᐡᐢᐣᐤᐥᐦᐧᐨᐩᐪᐫᐬᐭᐮᐯᐰᐱᐲᐳᐴᐵᐶᐷᐸᐹᐺᐻᐼᐽᐾᐿᑀᑁᑂᑃᑄᑅᑆᑇᑈᑉᑊᑋᑌᑍᑎᑏᑐᑑᑒᑓᑔᑕᑖᑗᑘᑙᑚᑛᑜᑝᑞᑟᑠᑡᑢᑣᑤᑥᑦᑧᑨᑩᑪᑫᑬᑭᑮᑯᑰᑱᑲᑳᑴᑵᑶᑷᑸᑹᑺᑻᑼᑽᑾᑿᒀᒁᒂᒃᒄᒅᒆᒇᒈᒉᒊᒋᒌᒍᒎᒏᒐᒑᒒᒓᒔᒕᒖᒗᒘᒙᒚᒛᒜᒝᒞᒟᒠᒡᒢᒣᒤᒥᒦᒧᒨᒩᒪᒫᒬᒭᒮᒯᒰᒱᒲᒳᒴᒵᒶᒷᒸᒹᒺᒻᒼᒽᒾᒿᓀᓁᓂᓃᓄᓅᓆᓇᓈᓉᓊᓋᓌᓍᓎᓏᓐᓑᓒᓓᓔᓕᓖᓗᓘᓙᓚᓛᓜᓝᓞᓟᓠᓡᓢᓣᓤᓥᓦᓧᓨᓩᓪᓫᓬᓭᓮᓯᓰᓱᓲᓳᓴᓵᓶᓷᓸᓹᓺᓻᓼᓽᓾᓿᔀᔁᔂᔃᔄᔅᔆᔇᔈᔉᔊᔋᔌᔍᔎᔏᔐᔑᔒᔓᔔᔕᔖᔗᔘᔙᔚᔛᔜᔝᔞᔟᔠᔡᔢᔣᔤᔥᔦᔧᔨᔩᔪᔫᔬᔭᔮᔯᔰᔱᔲᔳᔴᔵᔶᔷᔸᔹᔺᔻᔼᔽᔾᔿᕀᕁᕂᕃᕄᕅᕆᕇᕈᕉᕊᕋᕌᕍᕎᕏᕐᕑᕒᕓᕔᕕᕖᕗᕘᕙᕚᕛᕜᕝᕞᕟᕠᕡᕢᕣᕤᕥᕦᕧᕨᕩᕪᕫᕬᕭᕮᕯᕰᕱᕲᕳᕴᕵᕶᕷᕸᕹᕺᕻᕼᕽᕾᕿᖀᖁᖂᖃᖄᖅᖆᖇᖈᖉᖊᖋᖌᖍᖎᖏᖐᖑᖒᖓᖔᖕᖖᖗᖘᖙᖚᖛᖜᖝᖞᖟᖠᖡᖢᖣᖤᖥᖦᖧᖨᖩᖪᖫᖬᖭᖮᖯᖰᖱᖲᖳᖴᖵᖶᖷᖸᖹᖺᖻᖼᖽᖾᖿᗀᗁᗂᗃᗄᗅᗆᗇᗈᗉᗊᗋᗌᗍᗎᗏᗐᗑᗒᗓᗔᗕᗖᗗᗘᗙᗚᗛᗜᗝᗞᗟᗠᗡᗢᗣᗤᗥᗦᗧᗨᗩᗪᗫᗬᗭᗮᗯᗰᗱᗲᗳᗴᗵᗶᗷᗸᗹᗺᗻᗼᗽᗾᗿᘀᘁᘂᘃᘄᘅᘆᘇᘈᘉᘊᘋᘌᘍᘎᘏᘐᘑᘒᘓᘔᘕᘖᘗᘘᘙᘚᘛᘜᘝᘞᘟᘠᘡᘢᘣᘤᘥᘦᘧᘨᘩᘪᘫᘬᘭᘮᘯᘰᘱᘲᘳᘴᘵᘶᘷᘸᘹᘺᘻᘼᘽᘾᘿᙀᙁᙂᙃᙄᙅᙆᙇᙈᙉᙊᙋᙌᙍᙎᙏᙐᙑᙒᙓᙔᙕᙖᙗᙘᙙᙚᙛᙜᙝᙞᙟᙠᙡᙢᙣᙤᙥᙦᙧᙨᙩᙪᙫᙬ᙭᙮ᙯᙰᙱᙲᙳᙴᙵᙶᙷᙸᙹᙺᙻᙼᙽᙾᙿ ᚁᚂᚃᚄᚅᚆᚇᚈᚉᚊᚋᚌᚍᚎᚏᚐᚑᚒᚓᚔᚕᚖᚗᚘᚙᚚ᚛᚜᚝᚞᚟ᚠᚡᚢᚣᚤᚥᚦᚧᚨᚩᚪᚫᚬᚭᚮᚯᚰᚱᚲᚳᚴᚵᚶᚷᚸᚹᚺᚻᚼᚽᚾᚿᛀᛁᛂᛃᛄᛅᛆᛇᛈᛉᛊᛋᛌᛍᛎᛏᛐᛑᛒᛓᛔᛕᛖᛗᛘᛙᛚᛛᛜᛝᛞᛟᛠᛡᛢᛣᛤᛥᛦᛧᛨᛩᛪ᛫᛬᛭ᛮᛯᛰᛱᛲᛳᛴᛵᛶᛷᛸ᛹᛺᛻᛼᛽᛾᛿ᜀᜁᜂᜃᜄᜅᜆᜇᜈᜉᜊᜋᜌᜍᜎᜏᜐᜑᜒᜓ᜔᜕᜖᜗᜘᜙᜚᜛᜜᜝᜞ᜟᜠᜡᜢᜣᜤᜥᜦᜧᜨᜩᜪᜫᜬᜭᜮᜯᜰᜱᜲᜳ᜴᜵᜶᜷᜸᜹᜺᜻᜼᜽᜾᜿ᝀᝁᝂᝃᝄᝅᝆᝇᝈᝉᝊᝋᝌᝍᝎᝏᝐᝑᝒᝓ᝔᝕᝖᝗᝘᝙᝚᝛᝜᝝᝞᝟ᝠᝡᝢᝣᝤᝥᝦᝧᝨᝩᝪᝫᝬ᝭ᝮᝯᝰ᝱ᝲᝳ᝴᝵᝶᝷᝸᝹᝺᝻᝼᝽᝾᝿កខគឃងចឆជឈញដឋឌឍណតថទធនបផពភមយរលវឝឞសហឡអឣឤឥឦឧឨឩឪឫឬឭឮឯឰឱឲឳ឴឵ាិីឹឺុូួើឿៀេែៃោៅំះៈ៉៊់៌៍៎៏័៑្៓។៕៖ៗ៘៙៚៛ៜ៝៞៟០១២៣៤៥៦៧៨៩៪៫៬៭៮៯៰៱៲៳៴៵៶៷៸៹៺៻៼៽៾៿᠀᠁᠂᠃᠄᠅᠆᠇᠈᠉᠊᠋᠌᠍᠎᠏᠐᠑᠒᠓᠔᠕᠖᠗᠘᠙᠚᠛᠜᠝᠞᠟ᠠᠡᠢᠣᠤᠥᠦᠧᠨᠩᠪᠫᠬᠭᠮᠯᠰᠱᠲᠳᠴᠵᠶᠷᠸᠹᠺᠻᠼᠽᠾᠿᡀᡁᡂᡃᡄᡅᡆᡇᡈᡉᡊᡋᡌᡍᡎᡏᡐᡑᡒᡓᡔᡕᡖᡗᡘᡙᡚᡛᡜᡝᡞᡟᡠᡡᡢᡣᡤᡥᡦᡧᡨᡩᡪᡫᡬᡭᡮᡯᡰᡱᡲᡳᡴᡵᡶᡷᡸ᡹᡺᡻᡼᡽᡾᡿ᢀᢁᢂᢃᢄᢅᢆᢇᢈᢉᢊᢋᢌᢍᢎᢏᢐᢑᢒᢓᢔᢕᢖᢗᢘᢙᢚᢛᢜᢝᢞᢟᢠᢡᢢᢣᢤᢥᢦᢧᢨᢩᢪ᢫᢬᢭᢮᢯ᢰᢱᢲᢳᢴᢵᢶᢷᢸᢹᢺᢻᢼᢽᢾᢿᣀᣁᣂᣃᣄᣅᣆᣇᣈᣉᣊᣋᣌᣍᣎᣏᣐᣑᣒᣓᣔᣕᣖᣗᣘᣙᣚᣛᣜᣝᣞᣟᣠᣡᣢᣣᣤᣥᣦᣧᣨᣩᣪᣫᣬᣭᣮᣯᣰᣱᣲᣳᣴᣵ᣶᣷᣸᣹᣺᣻᣼᣽᣾᣿ᤀᤁᤂᤃᤄᤅᤆᤇᤈᤉᤊᤋᤌᤍᤎᤏᤐᤑᤒᤓᤔᤕᤖᤗᤘᤙᤚᤛᤜᤝᤞ᤟ᤠᤡᤢᤣᤤᤥᤦᤧᤨᤩᤪᤫ᤬᤭᤮᤯ᤰᤱᤲᤳᤴᤵᤶᤷᤸ᤻᤹᤺᤼᤽᤾᤿᥀᥁᥂᥃᥄᥅᥆᥇᥈᥉᥊᥋᥌᥍᥎᥏ᥐᥑᥒᥓᥔᥕᥖᥗᥘᥙᥚᥛᥜᥝᥞᥟᥠᥡᥢᥣᥤᥥᥦᥧᥨᥩᥪᥫᥬᥭ᥮᥯ᥰᥱᥲᥳᥴ᥵᥶᥷᥸᥹᥺᥻᥼᥽᥾᥿ᦀᦁᦂᦃᦄᦅᦆᦇᦈᦉᦊᦋᦌᦍᦎᦏᦐᦑᦒᦓᦔᦕᦖᦗᦘᦙᦚᦛᦜᦝᦞᦟᦠᦡᦢᦣᦤᦥᦦᦧᦨᦩᦪᦫ᦬᦭᦮᦯ᦰᦱᦲᦳᦴᦵᦶᦷᦸᦹᦺᦻᦼᦽᦾᦿᧀᧁᧂᧃᧄᧅᧆᧇᧈᧉ᧊᧋᧌᧍᧎᧏᧐᧑᧒᧓᧔᧕᧖᧗᧘᧙᧚᧛᧜᧝᧞᧟᧠᧡᧢᧣᧤᧥᧦᧧᧨᧩᧪᧫᧬᧭᧮᧯᧰᧱᧲᧳᧴᧵᧶᧷᧸᧹᧺᧻᧼᧽᧾᧿ᨀᨁᨂᨃᨄᨅᨆᨇᨈᨉᨊᨋᨌᨍᨎᨏᨐᨑᨒᨓᨔᨕᨖᨘᨗᨙᨚᨛ᨜᨝᨞᨟ᨠᨡᨢᨣᨤᨥᨦᨧᨨᨩᨪᨫᨬᨭᨮᨯᨰᨱᨲᨳᨴᨵᨶᨷᨸᨹᨺᨻᨼᨽᨾᨿᩀᩁᩂᩃᩄᩅᩆᩇᩈᩉᩊᩋᩌᩍᩎᩏᩐᩑᩒᩓᩔᩕᩖᩗᩘᩙᩚᩛᩜᩝᩞ᩟᩠ᩡᩢᩣᩤᩥᩦᩧᩨᩩᩪᩫᩬᩭᩮᩯᩰᩱᩲᩳᩴ᩵᩶᩷᩸᩹᩺᩻᩼᩽᩾᩿᪀᪁᪂᪃᪄᪅᪆᪇᪈᪉᪊᪋᪌᪍᪎᪏᪐᪑᪒᪓᪔᪕᪖᪗᪘᪙᪚᪛᪜᪝᪞᪟᪠᪡᪢᪣᪤᪥᪦ᪧ᪨᪩᪪᪫᪬᪭᪮᪯᪵᪶᪷᪸᪹᪺᪽᪰᪱᪲᪳᪴᪻᪼᪾ᪿᫀ᫃᫄᫊᫁᫂᫅᫆᫇᫈᫉᫋ᫌᫍᫎ᫏᫐᫑᫒᫓᫔᫕᫖᫗᫘᫙᫚᫛᫜᫝᫞᫟᫠᫡᫢᫣᫤᫥᫦᫧᫨᫩᫪᫫᫬᫭᫮᫯᫰᫱᫲᫳᫴᫵᫶᫷᫸᫹᫺᫻᫼᫽᫾᫿ᬀᬁᬂᬃᬄᬅᬆᬇᬈᬉᬊᬋᬌᬍᬎᬏᬐᬑᬒᬓᬔᬕᬖᬗᬘᬙᬚᬛᬜᬝᬞᬟᬠᬡᬢᬣᬤᬥᬦᬧᬨᬩᬪᬫᬬᬭᬮᬯᬰᬱᬲᬳ᬴ᬵᬶᬷᬸᬹᬺᬻᬼᬽᬾᬿᭀᭁᭂᭃ᭄ᭅᭆᭇᭈᭉᭊᭋᭌ᭍᭎᭏᭐᭑᭒᭓᭔᭕᭖᭗᭘᭙᭚᭛᭜᭝᭞᭟᭠᭡᭢᭣᭤᭥᭦᭧᭨᭩᭪᭬᭫᭭᭮᭯᭰᭱᭲᭳᭴᭵᭶᭷᭸᭹᭺᭻᭼᭽᭾᭿ᮀᮁᮂᮃᮄᮅᮆᮇᮈᮉᮊᮋᮌᮍᮎᮏᮐᮑᮒᮓᮔᮕᮖᮗᮘᮙᮚᮛᮜᮝᮞᮟᮠᮡᮢᮣᮤᮥᮦᮧᮨᮩ᮪᮫ᮬᮭᮮᮯ᮰᮱᮲᮳᮴᮵᮶᮷᮸᮹ᮺᮻᮼᮽᮾᮿᯀᯁᯂᯃᯄᯅᯆᯇᯈᯉᯊᯋᯌᯍᯎᯏᯐᯑᯒᯓᯔᯕᯖᯗᯘᯙᯚᯛᯜᯝᯞᯟᯠᯡᯢᯣᯤᯥ᯦ᯧᯨᯩᯪᯫᯬᯭᯮᯯᯰᯱ᯲᯳᯴᯵᯶᯷᯸᯹᯺᯻᯼᯽᯾᯿ᰀᰁᰂᰃᰄᰅᰆᰇᰈᰉᰊᰋᰌᰍᰎᰏᰐᰑᰒᰓᰔᰕᰖᰗᰘᰙᰚᰛᰜᰝᰞᰟᰠᰡᰢᰣᰤᰥᰦᰧᰨᰩᰪᰫᰬᰭᰮᰯᰰᰱᰲᰳᰴᰵᰶ᰷᰸᰹᰺᰻᰼᰽᰾᰿᱀᱁᱂᱃᱄᱅᱆᱇᱈᱉᱊᱋᱌ᱍᱎᱏ᱐᱑᱒᱓᱔᱕᱖᱗᱘᱙ᱚᱛᱜᱝᱞᱟᱠᱡᱢᱣᱤᱥᱦᱧᱨᱩᱪᱫᱬᱭᱮᱯᱰᱱᱲᱳᱴᱵᱶᱷᱸᱹᱺᱻᱼᱽ᱾᱿ᲀᲁᲂᲃᲄᲅᲆᲇᲈᲉᲊ᲋᲌᲍᲎᲏ᲐᲑᲒᲓᲔᲕᲖᲗᲘᲙᲚᲛᲜᲝᲞᲟᲠᲡᲢᲣᲤᲥᲦᲧᲨᲩᲪᲫᲬᲭᲮᲯᲰᲱᲲᲳᲴᲵᲶᲷᲸᲹᲺ᲻᲼ᲽᲾᲿ᳀᳁᳂᳃᳄᳅᳆᳇᳈᳉᳊᳋᳌᳍᳎᳏᳐᳑᳒᳓᳔᳕᳖᳗᳘᳙᳜᳝᳞᳟᳚᳛᳠᳡᳢᳣᳤᳥᳦᳧᳨ᳩᳪᳫᳬ᳭ᳮᳯᳰᳱᳲᳳ᳴ᳵᳶ᳷᳸᳹ᳺ᳻᳼᳽᳾᳿ᴀᴁᴂᴃᴄᴅᴆᴇᴈᴉᴊᴋᴌᴍᴎᴏᴐᴑᴒᴓᴔᴕᴖᴗᴘᴙᴚᴛᴜᴝᴞᴟᴠᴡᴢᴣᴤᴥᴦᴧᴨᴩᴪᴫᴬᴭᴮᴯᴰᴱᴲᴳᴴᴵᴶᴷᴸᴹᴺᴻᴼᴽᴾᴿᵀᵁᵂᵃᵄᵅᵆᵇᵈᵉᵊᵋᵌᵍᵎᵏᵐᵑᵒᵓᵔᵕᵖᵗᵘᵙᵚᵛᵜᵝᵞᵟᵠᵡᵢᵣᵤᵥᵦᵧᵨᵩᵪᵫᵬᵭᵮᵯᵰᵱᵲᵳᵴᵵᵶᵷᵸᵹᵺᵻᵼᵽᵾᵿᶀᶁᶂᶃᶄᶅᶆᶇᶈᶉᶊᶋᶌᶍᶎᶏᶐᶑᶒᶓᶔᶕᶖᶗᶘᶙᶚᶛᶜᶝᶞᶟᶠᶡᶢᶣᶤᶥᶦᶧᶨᶩᶪᶫᶬᶭᶮᶯᶰᶱᶲᶳᶴᶵᶶᶷᶸᶹᶺᶻᶼᶽᶾᶿ᷐᷎᷺᷂᷊᷏᷹᷽᷿᷷᷸᷀᷁᷃᷄᷅᷆᷇᷈᷉᷋᷌᷑᷒ᷓᷔᷕᷖᷗᷘᷙᷚᷛᷜᷝᷞᷟᷠᷡᷢᷣᷤᷥᷦᷧᷨᷩᷪᷫᷬᷭᷮᷯᷰᷱᷲᷳᷴ᷵᷻᷾᷶᷼᷍ḀḁḂḃḄḅḆḇḈḉḊḋḌḍḎḏḐḑḒḓḔḕḖḗḘḙḚḛḜḝḞḟḠḡḢḣḤḥḦḧḨḩḪḫḬḭḮḯḰḱḲḳḴḵḶḷḸḹḺḻḼḽḾḿṀṁṂṃṄṅṆṇṈṉṊṋṌṍṎṏṐṑṒṓṔṕṖṗṘṙṚṛṜṝṞṟṠṡṢṣṤṥṦṧṨṩṪṫṬṭṮṯṰṱṲṳṴṵṶṷṸṹṺṻṼṽṾṿẀẁẂẃẄẅẆẇẈẉẊẋẌẍẎẏẐẑẒẓẔẕẖẗẘẙẚẛẜẝẞẟẠạẢảẤấẦầẨẩẪẫẬậẮắẰằẲẳẴẵẶặẸẹẺẻẼẽẾếỀềỂểỄễỆệỈỉỊịỌọỎỏỐốỒồỔổỖỗỘộỚớỜờỞởỠỡỢợỤụỦủỨứỪừỬửỮữỰựỲỳỴỵỶỷỸỹỺỻỼỽỾỿἀἁἂἃἄἅἆἇἈἉἊἋἌἍἎἏἐἑἒἓἔἕ἖἗ἘἙἚἛἜἝ἞἟ἠἡἢἣἤἥἦἧἨἩἪἫἬἭἮἯἰἱἲἳἴἵἶἷἸἹἺἻἼἽἾἿὀὁὂὃὄὅ὆὇ὈὉὊὋὌὍ὎὏ὐὑὒὓὔὕὖὗ὘Ὑ὚Ὓ὜Ὕ὞ὟὠὡὢὣὤὥὦὧὨὩὪὫὬὭὮὯὰάὲέὴήὶίὸόὺύὼώ὾὿ᾀᾁᾂᾃᾄᾅᾆᾇᾈᾉᾊᾋᾌᾍᾎᾏᾐᾑᾒᾓᾔᾕᾖᾗᾘᾙᾚᾛᾜᾝᾞᾟᾠᾡᾢᾣᾤᾥᾦᾧᾨᾩᾪᾫᾬᾭᾮᾯᾰᾱᾲᾳᾴ᾵ᾶᾷᾸᾹᾺΆᾼ᾽ι᾿῀῁ῂῃῄ῅ῆῇῈΈῊΉῌ῍῎῏ῐῑῒΐ῔῕ῖῗῘῙῚΊ῜῝῞῟ῠῡῢΰῤῥῦῧῨῩῪΎῬ῭΅`῰῱ῲῳῴ῵ῶῷῸΌῺΏῼ´῾῿           ​‌‍‎‏‐‑‒–—―‖‗‘’‚‛“”„‟†‡•‣․‥…‧

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䎉䎊䎋䎌䎍䎎䎏䎐䎑䎒䎓䎔䎕䎖䎗䎘䎙䎚䎛䎜䎝䎞䎟䎠䎡䎢䎣䎤䎥䎦䎧䎨䎩䎪䎫䎬䎭䎮䎯䎰䎱䎲䎳䎴䎵䎶䎷䎸䎹䎺䎻䎼䎽䎾䎿䏀䏁䏂䏃䏄䏅䏆䏇䏈䏉䏊䏋䏌䏍䏎䏏䏐䏑䏒䏓䏔䏕䏖䏗䏘䏙䏚䏛䏜䏝䏞䏟䏠䏡䏢䏣䏤䏥䏦䏧䏨䏩䏪䏫䏬䏭䏮䏯䏰䏱䏲䏳䏴䏵䏶䏷䏸䏹䏺䏻䏼䏽䏾䏿䐀䐁䐂䐃䐄䐅䐆䐇䐈䐉䐊䐋䐌䐍䐎䐏䐐䐑䐒䐓䐔䐕䐖䐗䐘䐙䐚䐛䐜䐝䐞䐟䐠䐡䐢䐣䐤䐥䐦䐧䐨䐩䐪䐫䐬䐭䐮䐯䐰䐱䐲䐳䐴䐵䐶䐷䐸䐹䐺䐻䐼䐽䐾䐿䑀䑁䑂䑃䑄䑅䑆䑇䑈䑉䑊䑋䑌䑍䑎䑏䑐䑑䑒䑓䑔䑕䑖䑗䑘䑙䑚䑛䑜䑝䑞䑟䑠䑡䑢䑣䑤䑥䑦䑧䑨䑩䑪䑫䑬䑭䑮䑯䑰䑱䑲䑳䑴䑵䑶䑷䑸䑹䑺䑻䑼䑽䑾䑿䒀䒁䒂䒃䒄䒅䒆䒇䒈䒉䒊䒋䒌䒍䒎䒏䒐䒑䒒䒓䒔䒕䒖䒗䒘䒙䒚䒛䒜䒝䒞䒟䒠䒡䒢䒣䒤䒥䒦䒧䒨䒩䒪䒫䒬䒭䒮䒯䒰䒱䒲䒳䒴䒵䒶䒷䒸䒹䒺䒻䒼䒽䒾䒿䓀䓁䓂䓃䓄䓅䓆䓇䓈䓉䓊䓋䓌䓍䓎䓏䓐䓑䓒䓓䓔䓕䓖䓗䓘䓙䓚䓛䓜䓝䓞䓟䓠䓡䓢䓣䓤䓥䓦䓧䓨䓩䓪䓫䓬䓭䓮䓯䓰䓱䓲䓳䓴䓵䓶䓷䓸䓹䓺䓻䓼䓽䓾䓿䔀䔁䔂䔃䔄䔅䔆䔇䔈䔉䔊䔋䔌䔍䔎䔏䔐䔑䔒䔓䔔䔕䔖䔗䔘䔙䔚䔛䔜䔝䔞䔟䔠䔡䔢䔣䔤䔥䔦䔧䔨䔩䔪䔫䔬䔭䔮䔯䔰䔱䔲䔳䔴䔵䔶䔷䔸䔹䔺䔻䔼䔽䔾䔿䕀䕁䕂䕃䕄䕅䕆䕇䕈䕉䕊䕋䕌䕍䕎䕏䕐䕑䕒䕓䕔䕕䕖䕗䕘䕙䕚䕛䕜䕝䕞䕟䕠䕡䕢䕣䕤䕥䕦䕧䕨䕩䕪䕫䕬䕭䕮䕯䕰䕱䕲䕳䕴䕵䕶䕷䕸䕹䕺䕻䕼䕽䕾䕿䖀䖁䖂䖃䖄䖅䖆䖇䖈䖉䖊䖋䖌䖍䖎䖏䖐䖑䖒䖓䖔䖕䖖䖗䖘䖙䖚䖛䖜䖝䖞䖟䖠䖡䖢䖣䖤䖥䖦䖧䖨䖩䖪䖫䖬䖭䖮䖯䖰䖱䖲䖳䖴䖵䖶䖷䖸䖹䖺䖻䖼䖽䖾䖿䗀䗁䗂䗃䗄䗅䗆䗇䗈䗉䗊䗋䗌䗍䗎䗏䗐䗑䗒䗓䗔䗕䗖䗗䗘䗙䗚䗛䗜䗝䗞䗟䗠䗡䗢䗣䗤䗥䗦䗧䗨䗩䗪䗫䗬䗭䗮䗯䗰䗱䗲䗳䗴䗵䗶䗷䗸䗹䗺䗻䗼䗽䗾䗿䘀䘁䘂䘃䘄䘅䘆䘇䘈䘉䘊䘋䘌䘍䘎䘏䘐䘑䘒䘓䘔䘕䘖䘗䘘䘙䘚䘛䘜䘝䘞䘟䘠䘡䘢䘣䘤䘥䘦䘧䘨䘩䘪䘫䘬䘭䘮䘯䘰䘱䘲䘳䘴䘵䘶䘷䘸䘹䘺䘻䘼䘽䘾䘿䙀䙁䙂䙃䙄䙅䙆䙇䙈䙉䙊䙋䙌䙍䙎䙏䙐䙑䙒䙓䙔䙕䙖䙗䙘䙙䙚䙛䙜䙝䙞䙟䙠䙡䙢䙣䙤䙥䙦䙧䙨䙩䙪䙫䙬䙭䙮䙯䙰䙱䙲䙳䙴䙵䙶䙷䙸䙹䙺䙻䙼䙽䙾䙿䚀䚁䚂䚃䚄䚅䚆䚇䚈䚉䚊䚋䚌䚍䚎䚏䚐䚑䚒䚓䚔䚕䚖䚗䚘䚙䚚䚛䚜䚝䚞䚟䚠䚡䚢䚣䚤䚥䚦䚧䚨䚩䚪䚫䚬䚭䚮䚯䚰䚱䚲䚳䚴䚵䚶䚷䚸䚹䚺䚻䚼䚽䚾䚿䛀䛁䛂䛃䛄䛅䛆䛇䛈䛉䛊䛋䛌䛍䛎䛏䛐䛑䛒䛓䛔䛕䛖䛗䛘䛙䛚䛛䛜䛝䛞䛟䛠䛡䛢䛣䛤䛥䛦䛧䛨䛩䛪䛫䛬䛭䛮䛯䛰䛱䛲䛳䛴䛵䛶䛷䛸䛹䛺䛻䛼䛽䛾䛿䜀䜁䜂䜃䜄䜅䜆䜇䜈䜉䜊䜋䜌䜍䜎䜏䜐䜑䜒䜓䜔䜕䜖䜗䜘䜙䜚䜛䜜䜝䜞䜟䜠䜡䜢䜣䜤䜥䜦䜧䜨䜩䜪䜫䜬䜭䜮䜯䜰䜱䜲䜳䜴䜵䜶䜷䜸䜹䜺䜻䜼䜽䜾䜿䝀䝁䝂䝃䝄䝅䝆䝇䝈䝉䝊䝋䝌䝍䝎䝏䝐䝑䝒䝓䝔䝕䝖䝗䝘䝙䝚䝛䝜䝝䝞䝟䝠䝡䝢䝣䝤䝥䝦䝧䝨䝩䝪䝫䝬䝭䝮䝯䝰䝱䝲䝳䝴䝵䝶䝷䝸䝹䝺䝻䝼䝽䝾䝿䞀䞁䞂䞃䞄䞅䞆䞇䞈䞉䞊䞋䞌䞍䞎䞏䞐䞑䞒䞓䞔䞕䞖䞗䞘䞙䞚䞛䞜䞝䞞䞟䞠䞡䞢䞣䞤䞥䞦䞧䞨䞩䞪䞫䞬䞭䞮䞯䞰䞱䞲䞳䞴䞵䞶䞷䞸䞹䞺䞻䞼䞽䞾䞿䟀䟁䟂䟃䟄䟅䟆䟇䟈䟉䟊䟋䟌䟍䟎䟏䟐䟑䟒䟓䟔䟕䟖䟗䟘䟙䟚䟛䟜䟝䟞䟟䟠䟡䟢䟣䟤䟥䟦䟧䟨䟩䟪䟫䟬䟭䟮䟯䟰䟱䟲䟳䟴䟵䟶䟷䟸䟹䟺䟻䟼䟽䟾䟿䠀䠁䠂䠃䠄䠅䠆䠇䠈䠉䠊䠋䠌䠍䠎䠏䠐䠑䠒䠓䠔䠕䠖䠗䠘䠙䠚䠛䠜䠝䠞䠟䠠䠡䠢䠣䠤䠥䠦䠧䠨䠩䠪䠫䠬䠭䠮䠯䠰䠱䠲䠳䠴䠵䠶䠷䠸䠹䠺䠻䠼䠽䠾䠿䡀䡁䡂䡃䡄䡅䡆䡇䡈䡉䡊䡋䡌䡍䡎䡏䡐䡑䡒䡓䡔䡕䡖䡗䡘䡙䡚䡛䡜䡝䡞䡟䡠䡡䡢䡣䡤䡥䡦䡧䡨䡩䡪䡫䡬䡭䡮䡯䡰䡱䡲䡳䡴䡵䡶䡷䡸䡹䡺䡻䡼䡽䡾䡿䢀䢁䢂䢃䢄䢅䢆䢇䢈䢉䢊䢋䢌䢍䢎䢏䢐䢑䢒䢓䢔䢕䢖䢗䢘䢙䢚䢛䢜䢝䢞䢟䢠䢡䢢䢣䢤䢥䢦䢧䢨䢩䢪䢫䢬䢭䢮䢯䢰䢱䢲䢳䢴䢵䢶䢷䢸䢹䢺䢻䢼䢽䢾䢿䣀䣁䣂䣃䣄䣅䣆䣇䣈䣉䣊䣋䣌䣍䣎䣏䣐䣑䣒䣓䣔䣕䣖䣗䣘䣙䣚䣛䣜䣝䣞䣟䣠䣡䣢䣣䣤䣥䣦䣧䣨䣩䣪䣫䣬䣭䣮䣯䣰䣱䣲䣳䣴䣵䣶䣷䣸䣹䣺䣻䣼䣽䣾䣿䤀䤁䤂䤃䤄䤅䤆䤇䤈䤉䤊䤋䤌䤍䤎䤏䤐䤑䤒䤓䤔䤕䤖䤗䤘䤙䤚䤛䤜䤝䤞䤟䤠䤡䤢䤣䤤䤥䤦䤧䤨䤩䤪䤫䤬䤭䤮䤯䤰䤱䤲䤳䤴䤵䤶䤷䤸䤹䤺䤻䤼䤽䤾䤿䥀䥁䥂䥃䥄䥅䥆䥇䥈䥉䥊䥋䥌䥍䥎䥏䥐䥑䥒䥓䥔䥕䥖䥗䥘䥙䥚䥛䥜䥝䥞䥟䥠䥡䥢䥣䥤䥥䥦䥧䥨䥩䥪䥫䥬䥭䥮䥯䥰䥱䥲䥳䥴䥵䥶䥷䥸䥹䥺䥻䥼䥽䥾䥿䦀䦁䦂䦃䦄䦅䦆䦇䦈䦉䦊䦋䦌䦍䦎䦏䦐䦑䦒䦓䦔䦕䦖䦗䦘䦙䦚䦛䦜䦝䦞䦟䦠䦡䦢䦣䦤䦥䦦䦧䦨䦩䦪䦫䦬䦭䦮䦯䦰䦱䦲䦳䦴䦵䦶䦷䦸䦹䦺䦻䦼䦽䦾䦿䧀䧁䧂䧃䧄䧅䧆䧇䧈䧉䧊䧋䧌䧍䧎䧏䧐䧑䧒䧓䧔䧕䧖䧗䧘䧙䧚䧛䧜䧝䧞䧟䧠䧡䧢䧣䧤䧥䧦䧧䧨䧩䧪䧫䧬䧭䧮䧯䧰䧱䧲䧳䧴䧵䧶䧷䧸䧹䧺䧻䧼䧽䧾䧿䨀䨁䨂䨃䨄䨅䨆䨇䨈䨉䨊䨋䨌䨍䨎䨏䨐䨑䨒䨓䨔䨕䨖䨗䨘䨙䨚䨛䨜䨝䨞䨟䨠䨡䨢䨣䨤䨥䨦䨧䨨䨩䨪䨫䨬䨭䨮䨯䨰䨱䨲䨳䨴䨵䨶䨷䨸䨹䨺䨻䨼䨽䨾䨿䩀䩁䩂䩃䩄䩅䩆䩇䩈䩉䩊䩋䩌䩍䩎䩏䩐䩑䩒䩓䩔䩕䩖䩗䩘䩙䩚䩛䩜䩝䩞䩟䩠䩡䩢䩣䩤䩥䩦䩧䩨䩩䩪䩫䩬䩭䩮䩯䩰䩱䩲䩳䩴䩵䩶䩷䩸䩹䩺䩻䩼䩽䩾䩿䪀䪁䪂䪃䪄䪅䪆䪇䪈䪉䪊䪋䪌䪍䪎䪏䪐䪑䪒䪓䪔䪕䪖䪗䪘䪙䪚䪛䪜䪝䪞䪟䪠䪡䪢䪣䪤䪥䪦䪧䪨䪩䪪䪫䪬䪭䪮䪯䪰䪱䪲䪳䪴䪵䪶䪷䪸䪹䪺䪻䪼䪽䪾䪿䫀䫁䫂䫃䫄䫅䫆䫇䫈䫉䫊䫋䫌䫍䫎䫏䫐䫑䫒䫓䫔䫕䫖䫗䫘䫙䫚䫛䫜䫝䫞䫟䫠䫡䫢䫣䫤䫥䫦䫧䫨䫩䫪䫫䫬䫭䫮䫯䫰䫱䫲䫳䫴䫵䫶䫷䫸䫹䫺䫻䫼䫽䫾䫿䬀䬁䬂䬃䬄䬅䬆䬇䬈䬉䬊䬋䬌䬍䬎䬏䬐䬑䬒䬓䬔䬕䬖䬗䬘䬙䬚䬛䬜䬝䬞䬟䬠䬡䬢䬣䬤䬥䬦䬧䬨䬩䬪䬫䬬䬭䬮䬯䬰䬱䬲䬳䬴䬵䬶䬷䬸䬹䬺䬻䬼䬽䬾䬿䭀䭁䭂䭃䭄䭅䭆䭇䭈䭉䭊䭋䭌䭍䭎䭏䭐䭑䭒䭓䭔䭕䭖䭗䭘䭙䭚䭛䭜䭝䭞䭟䭠䭡䭢䭣䭤䭥䭦䭧䭨䭩䭪䭫䭬䭭䭮䭯䭰䭱䭲䭳䭴䭵䭶䭷䭸䭹䭺䭻䭼䭽䭾䭿䮀䮁䮂䮃䮄䮅䮆䮇䮈䮉䮊䮋䮌䮍䮎䮏䮐䮑䮒䮓䮔䮕䮖䮗䮘䮙䮚䮛䮜䮝䮞䮟䮠䮡䮢䮣䮤䮥䮦䮧䮨䮩䮪䮫䮬䮭䮮䮯䮰䮱䮲䮳䮴䮵䮶䮷䮸䮹䮺䮻䮼䮽䮾䮿䯀䯁䯂䯃䯄䯅䯆䯇䯈䯉䯊䯋䯌䯍䯎䯏䯐䯑䯒䯓䯔䯕䯖䯗䯘䯙䯚䯛䯜䯝䯞䯟䯠䯡䯢䯣䯤䯥䯦䯧䯨䯩䯪䯫䯬䯭䯮䯯䯰䯱䯲䯳䯴䯵䯶䯷䯸䯹䯺䯻䯼䯽䯾䯿䰀䰁䰂䰃䰄䰅䰆䰇䰈䰉䰊䰋䰌䰍䰎䰏䰐䰑䰒䰓䰔䰕䰖䰗䰘䰙䰚䰛䰜䰝䰞䰟䰠䰡䰢䰣䰤䰥䰦䰧䰨䰩䰪䰫䰬䰭䰮䰯䰰䰱䰲䰳䰴䰵䰶䰷䰸䰹䰺䰻䰼䰽䰾䰿䱀䱁䱂䱃䱄䱅䱆䱇䱈䱉䱊䱋䱌䱍䱎䱏䱐䱑䱒䱓䱔䱕䱖䱗䱘䱙䱚䱛䱜䱝䱞䱟䱠䱡䱢䱣䱤䱥䱦䱧䱨䱩䱪䱫䱬䱭䱮䱯䱰䱱䱲䱳䱴䱵䱶䱷䱸䱹䱺䱻䱼䱽䱾䱿䲀䲁䲂䲃䲄䲅䲆䲇䲈䲉䲊䲋䲌䲍䲎䲏䲐䲑䲒䲓䲔䲕䲖䲗䲘䲙䲚䲛䲜䲝䲞䲟䲠䲡䲢䲣䲤䲥䲦䲧䲨䲩䲪䲫䲬䲭䲮䲯䲰䲱䲲䲳䲴䲵䲶䲷䲸䲹䲺䲻䲼䲽䲾䲿䳀䳁䳂䳃䳄䳅䳆䳇䳈䳉䳊䳋䳌䳍䳎䳏䳐䳑䳒䳓䳔䳕䳖䳗䳘䳙䳚䳛䳜䳝䳞䳟䳠䳡䳢䳣䳤䳥䳦䳧䳨䳩䳪䳫䳬䳭䳮䳯䳰䳱䳲䳳䳴䳵䳶䳷䳸䳹䳺䳻䳼䳽䳾䳿䴀䴁䴂䴃䴄䴅䴆䴇䴈䴉䴊䴋䴌䴍䴎䴏䴐䴑䴒䴓䴔䴕䴖䴗䴘䴙䴚䴛䴜䴝䴞䴟䴠䴡䴢䴣䴤䴥䴦䴧䴨䴩䴪䴫䴬䴭䴮䴯䴰䴱䴲䴳䴴䴵䴶䴷䴸䴹䴺䴻䴼䴽䴾䴿䵀䵁䵂䵃䵄䵅䵆䵇䵈䵉䵊䵋䵌䵍䵎䵏䵐䵑䵒䵓䵔䵕䵖䵗䵘䵙䵚䵛䵜䵝䵞䵟䵠䵡䵢䵣䵤䵥䵦䵧䵨䵩䵪䵫䵬䵭䵮䵯䵰䵱䵲䵳䵴䵵䵶䵷䵸䵹䵺䵻䵼䵽䵾䵿䶀䶁䶂䶃䶄䶅䶆䶇䶈䶉䶊䶋䶌䶍䶎䶏䶐䶑䶒䶓䶔䶕䶖䶗䶘䶙䶚䶛䶜䶝䶞䶟䶠䶡䶢䶣䶤䶥䶦䶧䶨䶩䶪䶫䶬䶭䶮䶯䶰䶱䶲䶳䶴䶵䶶䶷䶸䶹䶺䶻䶼䶽䶾䶿䷀䷁䷂䷃䷄䷅䷆䷇䷈䷉䷊䷋䷌䷍䷎䷏䷐䷑䷒䷓䷔䷕䷖䷗䷘䷙䷚䷛䷜䷝䷞䷟䷠䷡䷢䷣䷤䷥䷦䷧䷨䷩䷪䷫䷬䷭䷮䷯䷰䷱䷲䷳䷴䷵䷶䷷䷸䷹䷺䷻䷼䷽䷾䷿一丁丂七丄丅丆万丈三上下丌不与丏丐丑丒专且丕世丗丘丙业丛东丝丞丟丠両丢丣两严並丧丨丩个丫丬中丮丯丰丱串丳临丵丶丷丸丹为主丼丽举丿乀乁乂乃乄久乆乇么义乊之乌乍乎乏乐乑乒乓乔乕乖乗乘乙乚乛乜九乞也习乡乢乣乤乥书乧乨乩乪乫乬乭乮乯买乱乲乳乴乵乶乷乸乹乺乻乼乽乾乿亀亁亂亃亄亅了亇予争亊事二亍于亏亐云互亓五井亖亗亘亙亚些亜亝亞亟亠亡亢亣交亥亦产亨亩亪享京亭亮亯亰亱亲亳亴亵亶亷亸亹人亻亼亽亾亿什仁仂仃仄仅仆仇仈仉今介仌仍从仏仐仑仒仓仔仕他仗付仙仚仛仜仝仞仟仠仡仢代令以仦仧仨仩仪仫们仭仮仯仰仱仲仳仴仵件价仸仹仺任仼份仾仿伀企伂伃伄伅伆伇伈伉伊伋伌伍伎伏伐休伒伓伔伕伖众优伙会伛伜伝伞伟传伡伢伣伤伥伦伧伨伩伪伫伬伭伮伯估伱伲伳伴伵伶伷伸伹伺伻似伽伾伿佀佁佂佃佄佅但佇佈佉佊佋佌位低住佐佑佒体佔何佖佗佘余佚佛作佝佞佟你佡佢佣佤佥佦佧佨佩佪佫佬佭佮佯佰佱佲佳佴併佶佷佸佹佺佻佼佽佾使侀侁侂侃侄侅來侇侈侉侊例侌侍侎侏侐侑侒侓侔侕侖侗侘侙侚供侜依侞侟侠価侢侣侤侥侦侧侨侩侪侫侬侭侮侯侰侱侲侳侴侵侶侷侸侹侺侻侼侽侾便俀俁係促俄俅俆俇俈俉俊俋俌俍俎俏俐俑俒俓俔俕俖俗俘俙俚俛俜保俞俟俠信俢俣俤俥俦俧俨俩俪俫俬俭修俯俰俱俲俳俴俵俶俷俸俹俺俻俼俽俾俿倀倁倂倃倄倅倆倇倈倉倊個倌倍倎倏倐們倒倓倔倕倖倗倘候倚倛倜倝倞借倠倡倢倣値倥倦倧倨倩倪倫倬倭倮倯倰倱倲倳倴倵倶倷倸倹债倻值倽倾倿偀偁偂偃偄偅偆假偈偉偊偋偌偍偎偏偐偑偒偓偔偕偖偗偘偙做偛停偝偞偟偠偡偢偣偤健偦偧偨偩偪偫偬偭偮偯偰偱偲偳側偵偶偷偸偹偺偻偼偽偾偿傀傁傂傃傄傅傆傇傈傉傊傋傌傍傎傏傐傑傒傓傔傕傖傗傘備傚傛傜傝傞傟傠傡傢傣傤傥傦傧储傩傪傫催傭傮傯傰傱傲傳傴債傶傷傸傹傺傻傼傽傾傿僀僁僂僃僄僅僆僇僈僉僊僋僌働僎像僐僑僒僓僔僕僖僗僘僙僚僛僜僝僞僟僠僡僢僣僤僥僦僧僨僩僪僫僬僭僮僯僰僱僲僳僴僵僶僷僸價僺僻僼僽僾僿儀儁儂儃億儅儆儇儈儉儊儋儌儍儎儏儐儑儒儓儔儕儖儗儘儙儚儛儜儝儞償儠儡儢儣儤儥儦儧儨儩優儫儬儭儮儯儰儱儲儳儴儵儶儷儸儹儺儻儼儽儾儿兀允兂元兄充兆兇先光兊克兌免兎兏児兑兒兓兔兕兖兗兘兙党兛兜兝兞兟兠兡兢兣兤入兦內全兩兪八公六兮兯兰共兲关兴兵其具典兹兺养兼兽兾兿冀冁冂冃冄内円冇冈冉冊冋册再冎冏冐冑冒冓冔冕冖冗冘写冚军农冝冞冟冠冡冢冣冤冥冦冧冨冩冪冫冬冭冮冯冰冱冲决冴况冶冷冸冹冺冻冼冽冾冿净凁凂凃凄凅准凇凈凉凊凋凌凍凎减凐凑凒凓凔凕凖凗凘凙凚凛凜凝凞凟几凡凢凣凤凥処凧凨凩凪凫凬凭凮凯凰凱凲凳凴凵凶凷凸凹出击凼函凾凿刀刁刂刃刄刅分切刈刉刊刋刌刍刎刏刐刑划刓刔刕刖列刘则刚创刜初刞刟删刡刢刣判別刦刧刨利刪别刬刭刮刯到刱刲刳刴刵制刷券刹刺刻刼刽刾刿剀剁剂剃剄剅剆則剈剉削剋剌前剎剏剐剑剒剓剔剕剖剗剘剙剚剛剜剝剞剟剠剡剢剣剤剥剦剧剨剩剪剫剬剭剮副剰剱割剳剴創剶剷剸剹剺剻剼剽剾剿劀劁劂劃劄劅劆劇劈劉劊劋劌劍劎劏劐劑劒劓劔劕劖劗劘劙劚力劜劝办功加务劢劣劤劥劦劧动助努劫劬劭劮劯劰励劲劳労劵劶劷劸効劺劻劼劽劾势勀勁勂勃勄勅勆勇勈勉勊勋勌勍勎勏勐勑勒勓勔動勖勗勘務勚勛勜勝勞募勠勡勢勣勤勥勦勧勨勩勪勫勬勭勮勯勰勱勲勳勴勵勶勷勸勹勺勻勼勽勾勿匀匁匂匃匄包匆匇匈匉匊匋匌匍匎匏匐匑匒匓匔匕化北匘匙匚匛匜匝匞匟匠匡匢匣匤匥匦匧匨匩匪匫匬匭匮匯匰匱匲匳匴匵匶匷匸匹区医匼匽匾匿區十卂千卄卅卆升午卉半卋卌卍华协卐卑卒卓協单卖南単卙博卛卜卝卞卟占卡卢卣卤卥卦卧卨卩卪卫卬卭卮卯印危卲即却卵卶卷卸卹卺卻卼卽卾卿厀厁厂厃厄厅历厇厈厉厊压厌厍厎厏厐厑厒厓厔厕厖厗厘厙厚厛厜厝厞原厠厡厢厣厤厥厦厧厨厩厪厫厬厭厮厯厰厱厲厳厴厵厶厷厸厹厺去厼厽厾县叀叁参參叄叅叆叇又叉及友双反収叏叐发叒叓叔叕取受变叙叚叛叜叝叞叟叠叡叢口古句另叧叨叩只叫召叭叮可台叱史右叴叵叶号司叹叺叻叼叽叾叿吀吁吂吃各吅吆吇合吉吊吋同名后吏吐向吒吓吔吕吖吗吘吙吚君吜吝吞吟吠吡吢吣吤吥否吧吨吩吪含听吭吮启吰吱吲吳吴吵吶吷吸吹吺吻吼吽吾吿呀呁呂呃呄呅呆呇呈呉告呋呌呍呎呏呐呑呒呓呔呕呖呗员呙呚呛呜呝呞呟呠呡呢呣呤呥呦呧周呩呪呫呬呭呮呯呰呱呲味呴呵呶呷呸呹呺呻呼命呾呿咀咁咂咃咄咅咆咇咈咉咊咋和咍咎咏咐咑咒咓咔咕咖咗咘咙咚咛咜咝咞咟咠咡咢咣咤咥咦咧咨咩咪咫咬咭咮咯咰咱咲咳咴咵咶咷咸咹咺咻咼咽咾咿哀品哂哃哄哅哆哇哈哉哊哋哌响哎哏哐哑哒哓哔哕哖哗哘哙哚哛哜哝哞哟哠員哢哣哤哥哦哧哨哩哪哫哬哭哮哯哰哱哲哳哴哵哶哷哸哹哺哻哼哽哾哿唀唁唂唃唄唅唆唇唈唉唊唋唌唍唎唏唐唑唒唓唔唕唖唗唘唙唚唛唜唝唞唟唠唡唢唣唤唥唦唧唨唩唪唫唬唭售唯唰唱唲唳唴唵唶唷唸唹唺唻唼唽唾唿啀啁啂啃啄啅商啇啈啉啊啋啌啍啎問啐啑啒啓啔啕啖啗啘啙啚啛啜啝啞啟啠啡啢啣啤啥啦啧啨啩啪啫啬啭啮啯啰啱啲啳啴啵啶啷啸啹啺啻啼啽啾啿喀喁喂喃善喅喆喇喈喉喊喋喌喍喎喏喐喑喒喓喔喕喖喗喘喙喚喛喜喝喞喟喠喡喢喣喤喥喦喧喨喩喪喫喬喭單喯喰喱喲喳喴喵営喷喸喹喺喻喼喽喾喿嗀嗁嗂嗃嗄嗅嗆嗇嗈嗉嗊嗋嗌嗍嗎嗏嗐嗑嗒嗓嗔嗕嗖嗗嗘嗙嗚嗛嗜嗝嗞嗟嗠嗡嗢嗣嗤嗥嗦嗧嗨嗩嗪嗫嗬嗭嗮嗯嗰嗱嗲嗳嗴嗵嗶嗷嗸嗹嗺嗻嗼嗽嗾嗿嘀嘁嘂嘃嘄嘅嘆嘇嘈嘉嘊嘋嘌嘍嘎嘏嘐嘑嘒嘓嘔嘕嘖嘗嘘嘙嘚嘛嘜嘝嘞嘟嘠嘡嘢嘣嘤嘥嘦嘧嘨嘩嘪嘫嘬嘭嘮嘯嘰嘱嘲嘳嘴嘵嘶嘷嘸嘹嘺嘻嘼嘽嘾嘿噀噁噂噃噄噅噆噇噈噉噊噋噌噍噎噏噐噑噒噓噔噕噖噗噘噙噚噛噜噝噞噟噠噡噢噣噤噥噦噧器噩噪噫噬噭噮噯噰噱噲噳噴噵噶噷噸噹噺噻噼噽噾噿嚀嚁嚂嚃嚄嚅嚆嚇嚈嚉嚊嚋嚌嚍嚎嚏嚐嚑嚒嚓嚔嚕嚖嚗嚘嚙嚚嚛嚜嚝嚞嚟嚠嚡嚢嚣嚤嚥嚦嚧嚨嚩嚪嚫嚬嚭嚮嚯嚰嚱嚲嚳嚴嚵嚶嚷嚸嚹嚺嚻嚼嚽嚾嚿囀囁囂囃囄囅囆囇囈囉囊囋囌囍囎囏囐囑囒囓囔囕囖囗囘囙囚四囜囝回囟因囡团団囤囥囦囧囨囩囪囫囬园囮囯困囱囲図围囵囶囷囸囹固囻囼国图囿圀圁圂圃圄圅圆圇圈圉圊國圌圍圎圏圐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//3094795635 411117 gsh (2020/09/16 06:27:13)

プライベートライアン

社長:おはようございます。

基盤:おはようございます。

開発:今日は何を?

社長:いやあ、昨日のvin発掘が面白すぎて、まだぐったりしています。で、文字コードの事を思い出したので、文字曼荼羅を作ってみてはどうかなと。今コーヒーを飲んでて思いました。

基盤:マンダラブローみたいなw

社長:たとえばUnicodeの全文字を一枚のHTMLにするか、Canvasに米粒で書いて1画面として表示するみたいな。

開発:米粒が点にした時に見える全体的な模様も面白そうです。

基盤:どうやって二次元化するかですね。単純に上位下位をXYではなんだか。

社長:そこはまずやって見てですね。

プライベートウィンドウの色使い

基盤:げげ、なんだコリア?

社長:なんだか吸い込まれそうな色合いですね。アイコンがまた素晴らしい。

開発:以前は、というか最近まで、なにかこう、気持ちの悪い配色でしたよね。ナウシカの巨神兵みたいな。

基盤:もののけ姫のだいだらぼっちの透明感と配色は素晴らしかったです。

社長:特殊なモードだからできる実験的な配色なのかもですね。

開発:スタートページが安っぽくてデフォルト背景が気色悪いのは相変わらずですが。

社長:生成するならマンデルブローにでもすれば良いのに。

開発:徹底して色を排除しているSafari / macOSと好対照ですね。どちらもそれぞれに良いと思いますが。

基盤:Vivaldiは日本語もなんだかいい感じですよね。人間が訳しているというか。

社長:もらってきて訳しているだけというのとは違うんじゃ無いですかね。日本語で考えたのが別の言語に訳されたって良いはずです。

開発:気のおけない技術系対象な表現ていう感じがします。

社長:これはユーザの好みとか気分にもよりますから、表現というか文体を選択できると良いですね。大阪弁とか。

開発:おもてなしの京言葉が良いかもですね。茨城弁はちょっとやだな。

社長:土佐弁もけっこう良いです。

開発:まあ世にMSの日本語と色使いほど恐ろしいものは無いです。

基盤:Operaは相変わらずですね。

社長:私はこれがイヤでOperaから離れました。

基盤:ちなみにEdge。

開発:独自の用語を作りたがるのはここのDNAですね。

社長:カタカナに翻訳する無駄はやめたようです。

基盤:Firefox。

社長:やはりというかキテますね。

開発:RGBモデルではないんでしょうね。

基盤:Safari。

開発:微妙に色がついてますね。

社長:なんでプライベートウィンドウにお気に入りというプライバシーが表示されるんでしょう?

基盤:そしてChrome。

基盤:ブックマークは表示されるんですね。

社長:シークレットモードは昔、所内のYammerで質問して教えてもらいました。2つの O365 を同時に使うのに便利で。

基盤:Chromeのブックマークは、4月の始めに整理してた時のまんまですね。なつかしー。

基盤:当時の状況がしのばれるようなセットですね。タイムカプセル。

社長:今はGmailもAzureも去って行きました。ブラウザから郵便を開くことは無いし。

開発:そもそも「シークレットモード」というお仕着せのモードは必要なのかという事があります。いろんなパラメータを組み合わせて、そのユーザなりのモードを色々作れれば良いのではないかと。

社長:「ユーザ」とか「プロファイル」みたいな感じですかね。

基盤:Windowsのファイアウォールみたいにわけわかめになりませんかね。

社長:ユーザの視点に対してはうまくカプセル化して見せないとですね。単純な設定のセットをレゴ的に組み合わせられるとよいのかもしれません。

開発:ユーザとかグループって実際にはただのラベルですよね。抽象的なエンティティの。エンティティの間の包含関係とか連携で設定やコンテンツの継承とか一部共有とかができると良いのだと思います。

社長:プライベートにもいろんな階層とかスコープがありますからね。

基盤:一番下のプライベートのプロファイル名はライアンですかね。

開発:あれはスピルバーグの最高傑作では無いかと。

社長:軍隊の指揮系統というか情報連絡網は体系化されててとても参考になると思います。

* * *

社長:スタートページ的な表示形式で、名前をつけて保存できると良いでしょうね。ページの詰め合わせに名前をつけて保管して、そのサムネールセットをぱらぱらめくれるようにする。

基盤:見た目的には写真のアルバムの形式ですね。

開発:スクラプブックのようでもあり。

社長:名前はオプショナルで良いと思うんです。日付があれば。ああ、この日、この頃にはこういうページのセットを見ていたなというのがわかると。

開発:閲覧履歴をツリー表示とかネットワーク表示して、時系列でアニメにできると面白そうです。

社長:iPhone + Mac ユーザとしては、Photosがやはりアルバム的によくできていると思うのですが、これにNotesを統合してくれると良いなと思います。あと Safari も。ぜんぶ統合したアルバムが欲しいです。あの日あの時的な。

基盤:Appleにめっちゃロックインされそうですねw

社長:ここまでで長くなってしまったので、今日の日誌は別記事に分けることにしました。お腹が空いたので食事してきます。

-- 2020-1015 SatoxITS