diff options
Diffstat (limited to 'vendor/github.com/lunixbochs/vtclean/vtclean.go')
-rw-r--r-- | vendor/github.com/lunixbochs/vtclean/vtclean.go | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/vendor/github.com/lunixbochs/vtclean/vtclean.go b/vendor/github.com/lunixbochs/vtclean/vtclean.go deleted file mode 100644 index 64fe01fdb..000000000 --- a/vendor/github.com/lunixbochs/vtclean/vtclean.go +++ /dev/null @@ -1,95 +0,0 @@ -package vtclean - -import ( - "bytes" - "regexp" - "strconv" -) - -// regex based on ECMA-48: -// 1. optional: -// one of [ or ] -// any amount of 0x30-0x3f -// any amount of 0x20-0x2f -// 3. exactly one 0x40-0x7e -var vt100re = regexp.MustCompile(`^\033([\[\]]([0-9:;<=>\?]*)([!"#$%&'()*+,\-./]*))?([@A-Z\[\]^_\x60a-z{|}~])`) -var vt100exc = regexp.MustCompile(`^\033(\[[^a-zA-Z0-9@\?]+|[\(\)]).`) - -// this is to handle the RGB escape generated by `tput initc 1 500 500 500` -var vt100long = regexp.MustCompile(`^\033](\d+);([^\033]+)\033\\`) - -func Clean(line string, color bool) string { - var edit = newLineEdit(len(line)) - lineb := []byte(line) - - hadColor := false - for i := 0; i < len(lineb); { - c := lineb[i] - switch c { - case '\r': - edit.MoveAbs(0) - case '\b': - edit.Move(-1) - case '\033': - // set terminal title - if bytes.HasPrefix(lineb[i:], []byte("\x1b]0;")) { - pos := bytes.Index(lineb[i:], []byte("\a")) - if pos != -1 { - i += pos + 1 - continue - } - } - if m := vt100long.Find(lineb[i:]); m != nil { - i += len(m) - } else if m := vt100exc.Find(lineb[i:]); m != nil { - i += len(m) - } else if m := vt100re.FindSubmatch(lineb[i:]); m != nil { - i += len(m[0]) - num := string(m[2]) - n, err := strconv.Atoi(num) - if err != nil || n > 10000 { - n = 1 - } - switch m[4][0] { - case 'm': - if color { - hadColor = true - edit.Vt100(m[0]) - } - case '@': - edit.Insert(bytes.Repeat([]byte{' '}, n)) - case 'G': - edit.MoveAbs(n) - case 'C': - edit.Move(n) - case 'D': - edit.Move(-n) - case 'P': - edit.Delete(n) - case 'K': - switch num { - case "", "0": - edit.ClearRight() - case "1": - edit.ClearLeft() - case "2": - edit.Clear() - } - } - } else { - i += 1 - } - continue - default: - if c == '\n' || c == '\t' || c >= ' ' { - edit.Write([]byte{c}) - } - } - i += 1 - } - out := edit.Bytes() - if hadColor { - out = append(out, []byte("\033[0m")...) - } - return string(out) -} |