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-rw-r--r--vendor/github.com/peterh/liner/line.go103
1 files changed, 67 insertions, 36 deletions
diff --git a/vendor/github.com/peterh/liner/line.go b/vendor/github.com/peterh/liner/line.go
index 903dd240d..5e111ac69 100644
--- a/vendor/github.com/peterh/liner/line.go
+++ b/vendor/github.com/peterh/liner/line.go
@@ -90,11 +90,11 @@ const (
)
func (s *State) refresh(prompt []rune, buf []rune, pos int) error {
+ s.needRefresh = false
if s.multiLineMode {
return s.refreshMultiLine(prompt, buf, pos)
- } else {
- return s.refreshSingleLine(prompt, buf, pos)
}
+ return s.refreshSingleLine(prompt, buf, pos)
}
func (s *State) refreshSingleLine(prompt []rune, buf []rune, pos int) error {
@@ -387,8 +387,6 @@ func (s *State) tabComplete(p []rune, line []rune, pos int) ([]rune, int, interf
}
return []rune(head + pick + tail), hl + utf8.RuneCountInString(pick), next, nil
}
- // Not reached
- return line, pos, rune(esc), nil
}
// reverse intelligent search, implements a bash-like history search.
@@ -556,8 +554,6 @@ func (s *State) yank(p []rune, text []rune, pos int) ([]rune, int, interface{},
}
}
}
-
- return line, pos, esc, nil
}
// Prompt displays p and returns a line of user input, not including a trailing
@@ -573,6 +569,11 @@ func (s *State) Prompt(prompt string) (string, error) {
// including a trailing newline character. An io.EOF error is returned if the user
// signals end-of-file by pressing Ctrl-D.
func (s *State) PromptWithSuggestion(prompt string, text string, pos int) (string, error) {
+ for _, r := range prompt {
+ if unicode.Is(unicode.C, r) {
+ return "", ErrInvalidPrompt
+ }
+ }
if s.inputRedirected || !s.terminalSupported {
return s.promptUnsupported(prompt)
}
@@ -587,8 +588,9 @@ func (s *State) PromptWithSuggestion(prompt string, text string, pos int) (strin
p := []rune(prompt)
var line = []rune(text)
historyEnd := ""
- prefixHistory := s.getHistoryByPrefix(string(line))
- historyPos := len(prefixHistory)
+ var historyPrefix []string
+ historyPos := 0
+ historyStale := true
historyAction := false // used to mark history related actions
killAction := 0 // used to mark kill related actions
@@ -628,21 +630,21 @@ mainLoop:
break mainLoop
case ctrlA: // Start of line
pos = 0
- s.refresh(p, line, pos)
+ s.needRefresh = true
case ctrlE: // End of line
pos = len(line)
- s.refresh(p, line, pos)
+ s.needRefresh = true
case ctrlB: // left
if pos > 0 {
pos -= len(getSuffixGlyphs(line[:pos], 1))
- s.refresh(p, line, pos)
+ s.needRefresh = true
} else {
fmt.Print(beep)
}
case ctrlF: // right
if pos < len(line) {
pos += len(getPrefixGlyphs(line[pos:], 1))
- s.refresh(p, line, pos)
+ s.needRefresh = true
} else {
fmt.Print(beep)
}
@@ -661,7 +663,7 @@ mainLoop:
} else {
n := len(getPrefixGlyphs(line[pos:], 1))
line = append(line[:pos], line[pos+n:]...)
- s.refresh(p, line, pos)
+ s.needRefresh = true
}
case ctrlK: // delete remainder of line
if pos >= len(line) {
@@ -675,32 +677,42 @@ mainLoop:
killAction = 2 // Mark that there was a kill action
line = line[:pos]
- s.refresh(p, line, pos)
+ s.needRefresh = true
}
case ctrlP: // up
historyAction = true
+ if historyStale {
+ historyPrefix = s.getHistoryByPrefix(string(line))
+ historyPos = len(historyPrefix)
+ historyStale = false
+ }
if historyPos > 0 {
- if historyPos == len(prefixHistory) {
+ if historyPos == len(historyPrefix) {
historyEnd = string(line)
}
historyPos--
- line = []rune(prefixHistory[historyPos])
+ line = []rune(historyPrefix[historyPos])
pos = len(line)
- s.refresh(p, line, pos)
+ s.needRefresh = true
} else {
fmt.Print(beep)
}
case ctrlN: // down
historyAction = true
- if historyPos < len(prefixHistory) {
+ if historyStale {
+ historyPrefix = s.getHistoryByPrefix(string(line))
+ historyPos = len(historyPrefix)
+ historyStale = false
+ }
+ if historyPos < len(historyPrefix) {
historyPos++
- if historyPos == len(prefixHistory) {
+ if historyPos == len(historyPrefix) {
line = []rune(historyEnd)
} else {
- line = []rune(prefixHistory[historyPos])
+ line = []rune(historyPrefix[historyPos])
}
pos = len(line)
- s.refresh(p, line, pos)
+ s.needRefresh = true
} else {
fmt.Print(beep)
}
@@ -718,11 +730,11 @@ mainLoop:
copy(line[pos-len(prev):], next)
copy(line[pos-len(prev)+len(next):], scratch)
pos += len(next)
- s.refresh(p, line, pos)
+ s.needRefresh = true
}
case ctrlL: // clear screen
s.eraseScreen()
- s.refresh(p, line, pos)
+ s.needRefresh = true
case ctrlC: // reset
fmt.Println("^C")
if s.multiLineMode {
@@ -742,7 +754,7 @@ mainLoop:
n := len(getSuffixGlyphs(line[:pos], 1))
line = append(line[:pos-n], line[pos:]...)
pos -= n
- s.refresh(p, line, pos)
+ s.needRefresh = true
}
case ctrlU: // Erase line before cursor
if killAction > 0 {
@@ -754,7 +766,7 @@ mainLoop:
killAction = 2 // Mark that there was some killing
line = line[pos:]
pos = 0
- s.refresh(p, line, pos)
+ s.needRefresh = true
case ctrlW: // Erase word
if pos == 0 {
fmt.Print(beep)
@@ -791,13 +803,13 @@ mainLoop:
}
killAction = 2 // Mark that there was some killing
- s.refresh(p, line, pos)
+ s.needRefresh = true
case ctrlY: // Paste from Yank buffer
line, pos, next, err = s.yank(p, line, pos)
goto haveNext
case ctrlR: // Reverse Search
line, pos, next, err = s.reverseISearch(line, pos)
- s.refresh(p, line, pos)
+ s.needRefresh = true
goto haveNext
case tab: // Tab completion
line, pos, next, err = s.tabComplete(p, line, pos)
@@ -812,14 +824,16 @@ mainLoop:
case 0, 28, 29, 30, 31:
fmt.Print(beep)
default:
- if pos == len(line) && !s.multiLineMode && countGlyphs(p)+countGlyphs(line) < s.columns-1 {
+ if pos == len(line) && !s.multiLineMode &&
+ len(p)+len(line) < s.columns*4 && // Avoid countGlyphs on large lines
+ countGlyphs(p)+countGlyphs(line) < s.columns-1 {
line = append(line, v)
fmt.Printf("%c", v)
pos++
} else {
line = append(line[:pos], append([]rune{v}, line[pos:]...)...)
pos++
- s.refresh(p, line, pos)
+ s.needRefresh = true
}
}
case action:
@@ -887,24 +901,34 @@ mainLoop:
}
case up:
historyAction = true
+ if historyStale {
+ historyPrefix = s.getHistoryByPrefix(string(line))
+ historyPos = len(historyPrefix)
+ historyStale = false
+ }
if historyPos > 0 {
- if historyPos == len(prefixHistory) {
+ if historyPos == len(historyPrefix) {
historyEnd = string(line)
}
historyPos--
- line = []rune(prefixHistory[historyPos])
+ line = []rune(historyPrefix[historyPos])
pos = len(line)
} else {
fmt.Print(beep)
}
case down:
historyAction = true
- if historyPos < len(prefixHistory) {
+ if historyStale {
+ historyPrefix = s.getHistoryByPrefix(string(line))
+ historyPos = len(historyPrefix)
+ historyStale = false
+ }
+ if historyPos < len(historyPrefix) {
historyPos++
- if historyPos == len(prefixHistory) {
+ if historyPos == len(historyPrefix) {
line = []rune(historyEnd)
} else {
- line = []rune(prefixHistory[historyPos])
+ line = []rune(historyPrefix[historyPos])
}
pos = len(line)
} else {
@@ -928,11 +952,13 @@ mainLoop:
s.cursorRows = 1
}
}
+ s.needRefresh = true
+ }
+ if s.needRefresh && !s.inputWaiting() {
s.refresh(p, line, pos)
}
if !historyAction {
- prefixHistory = s.getHistoryByPrefix(string(line))
- historyPos = len(prefixHistory)
+ historyStale = true
}
if killAction > 0 {
killAction--
@@ -944,6 +970,11 @@ mainLoop:
// PasswordPrompt displays p, and then waits for user input. The input typed by
// the user is not displayed in the terminal.
func (s *State) PasswordPrompt(prompt string) (string, error) {
+ for _, r := range prompt {
+ if unicode.Is(unicode.C, r) {
+ return "", ErrInvalidPrompt
+ }
+ }
if !s.terminalSupported {
return "", errors.New("liner: function not supported in this terminal")
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-29 10:40:51 +0800