diff options
Diffstat (limited to 'vendor/golang.org/x/term')
| -rw-r--r-- | vendor/golang.org/x/term/terminal.go | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/vendor/golang.org/x/term/terminal.go b/vendor/golang.org/x/term/terminal.go index bddb2e2..6ec537c 100644 --- a/vendor/golang.org/x/term/terminal.go +++ b/vendor/golang.org/x/term/terminal.go @@ -160,7 +160,9 @@ const ( keyEnd keyDeleteWord keyDeleteLine + keyDelete keyClearScreen + keyTranspose keyPasteStart keyPasteEnd ) @@ -194,6 +196,8 @@ func bytesToKey(b []byte, pasteActive bool) (rune, []byte) { return keyDeleteLine, b[1:] case 12: // ^L return keyClearScreen, b[1:] + case 20: // ^T + return keyTranspose, b[1:] case 23: // ^W return keyDeleteWord, b[1:] case 14: // ^N @@ -228,6 +232,10 @@ func bytesToKey(b []byte, pasteActive bool) (rune, []byte) { } } + if !pasteActive && len(b) >= 4 && b[0] == keyEscape && b[1] == '[' && b[2] == '3' && b[3] == '~' { + return keyDelete, b[4:] + } + if !pasteActive && len(b) >= 6 && b[0] == keyEscape && b[1] == '[' && b[2] == '1' && b[3] == ';' && b[4] == '3' { switch b[5] { case 'C': @@ -413,7 +421,7 @@ func (t *Terminal) eraseNPreviousChars(n int) { } } -// countToLeftWord returns then number of characters from the cursor to the +// countToLeftWord returns the number of characters from the cursor to the // start of the previous word. func (t *Terminal) countToLeftWord() int { if t.pos == 0 { @@ -438,7 +446,7 @@ func (t *Terminal) countToLeftWord() int { return t.pos - pos } -// countToRightWord returns then number of characters from the cursor to the +// countToRightWord returns the number of characters from the cursor to the // start of the next word. func (t *Terminal) countToRightWord() int { pos := t.pos @@ -478,7 +486,7 @@ func visualLength(runes []rune) int { return length } -// histroryAt unlocks the terminal and relocks it while calling History.At. +// historyAt unlocks the terminal and relocks it while calling History.At. func (t *Terminal) historyAt(idx int) (string, bool) { t.lock.Unlock() // Unlock to avoid deadlock if History methods use the output writer. defer t.lock.Lock() // panic in At (or Len) protection. @@ -590,7 +598,7 @@ func (t *Terminal) handleKey(key rune) (line string, ok bool) { } t.line = t.line[:t.pos] t.moveCursorToPos(t.pos) - case keyCtrlD: + case keyCtrlD, keyDelete: // Erase the character under the current position. // The EOF case when the line is empty is handled in // readLine(). @@ -600,6 +608,24 @@ func (t *Terminal) handleKey(key rune) (line string, ok bool) { } case keyCtrlU: t.eraseNPreviousChars(t.pos) + case keyTranspose: + // This transposes the two characters around the cursor and advances the cursor. Best-effort. + if len(t.line) < 2 || t.pos < 1 { + return + } + swap := t.pos + if swap == len(t.line) { + swap-- // special: at end of line, swap previous two chars + } + t.line[swap-1], t.line[swap] = t.line[swap], t.line[swap-1] + if t.pos < len(t.line) { + t.pos++ + } + if t.echo { + t.moveCursorToPos(swap - 1) + t.writeLine(t.line[swap-1:]) + t.moveCursorToPos(t.pos) + } case keyClearScreen: // Erases the screen and moves the cursor to the home position. t.queue([]rune("\x1b[2J\x1b[H")) |