readline

package module
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 Go to latest Published: Jul 29, 2024 License: MIT Imports: 19 Imported by: 0

README

Build Status Software License Version GoDoc OpenCollective OpenCollective

A powerful readline library in Linux macOS Windows Solaris AIX

Guide

Repos using readline

cockroachdb robertkrimen/otto empire mehrdadrad/mylg knq/usql youtube/doorman bom-d-van/harp abiosoft/ishell Netflix/hal-9001 docker/go-p9p

Feedback

If you have any questions, please submit a github issue and any pull requests is welcomed :)

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Documentation

Overview

Readline is a pure go implementation for GNU-Readline kind library.

example: 

rl, err := readline.New("> ")
if err != nil {
	panic(err)
}
defer rl.Close()

for {
	line, err := rl.Readline()
	if err != nil { // io.EOF
		break
	}
	println(line)
}

Package terminal provides support functions for dealing with terminals, as commonly found on UNIX systems.

Putting a terminal into raw mode is the most common requirement: 

oldState, err := terminal.MakeRaw(0)
if err != nil {
        panic(err)
}
defer terminal.Restore(0, oldState)

Index

Constants

View Source 
const (
	T_DATA = MsgType(iota)
	T_WIDTH
	T_WIDTH_REPORT
	T_ISTTY_REPORT
	T_RAW
	T_ERAW // exit raw
	T_EOF
)
View Source 
const (
	S_STATE_FOUND = iota
	S_STATE_FAILING
)
View Source 
const (
	S_DIR_BCK = iota
	S_DIR_FWD
)
View Source 
const (
	CharLineStart = 1
	CharBackward  = 2
	CharInterrupt = 3
	CharDelete    = 4
	CharLineEnd   = 5
	CharForward   = 6
	CharBell      = 7
	CharCtrlH     = 8
	CharTab       = 9
	CharCtrlJ     = 10
	CharKill      = 11
	CharCtrlL     = 12
	CharEnter     = 13
	CharNext      = 14
	CharPrev      = 16
	CharBckSearch = 18
	CharFwdSearch = 19
	CharTranspose = 20
	CharCtrlU     = 21
	CharCtrlW     = 23
	CharCtrlY     = 25
	CharCtrlZ     = 26
	CharEsc       = 27
	CharO         = 79
	CharEscapeEx  = 91
	CharBackspace = 127
)
View Source 
const (
	MetaBackward rune = -iota - 1
	MetaForward
	MetaDelete
	MetaBackspace
	MetaTranspose
)
View Source 
const (
	VIM_NORMAL = iota
	VIM_INSERT
	VIM_VISUAL
)

Variables

View Source 
var (
	Stdin  io.ReadCloser  = os.Stdin
	Stdout io.WriteCloser = os.Stdout
	Stderr io.WriteCloser = os.Stderr
)
View Source 
var (
	ErrInterrupt = errors.New("Interrupt")
)
View Source 
var TabWidth = 4

Functions

func AddHistory 

func AddHistory(content string) error

add history to global instance manually raise error only if `SetHistoryPath` is set with a non-empty path

func CaptureExitSignal 

func CaptureExitSignal(f func())

func ClearScreen 

func ClearScreen(w io.Writer) (int, error)

ClearScreen clears the console screen

func Debug 

func Debug(o ...interface{})

append log info to another file

func DefaultIsTerminal 

func DefaultIsTerminal() bool

func DefaultOnWidthChanged 

func DefaultOnWidthChanged(f func())

func DialRemote 

func DialRemote(n, addr string) error

func Do 

func Do(p PrefixCompleterInterface, line []rune, pos int) (newLine [][]rune, offset int)

func GetInt 

func GetInt(s []string, def int) int

func GetScreenWidth 

func GetScreenWidth() int

func GetSize 

func GetSize(fd int) (int, int, error)

GetSize returns the dimensions of the given terminal.

func GetStdin 

func GetStdin() int

func IsPrintable 

func IsPrintable(key rune) bool

func IsTerminal 

func IsTerminal(fd int) bool

IsTerminal returns true if the given file descriptor is a terminal.

func IsWordBreak 

func IsWordBreak(i rune) bool

func Line 

func Line(prompt string) (string, error)

readline with global configs

func LineCount 

func LineCount(screenWidth, w int) int

calculate how many lines for N character

func ListenRemote 

func ListenRemote(n, addr string, cfg *Config, h func(*Instance), onListen ...func(net.Listener) error) error

func NewFillableStdin 

func NewFillableStdin(stdin io.Reader) (io.ReadCloser, io.Writer)

NewFillableStdin gives you FillableStdin

func Password 

func Password(prompt string) ([]byte, error)

func Print 

func Print(p PrefixCompleterInterface, prefix string, level int, buf *bytes.Buffer)

func ReadPassword 

func ReadPassword(fd int) ([]byte, error)

ReadPassword reads a line of input from a terminal without local echo. This is commonly used for inputting passwords and other sensitive data. The slice returned does not include the \n.

func Restore 

func Restore(fd int, state *State) error

func RetSegment 

func RetSegment(segments [][]rune, cands [][]rune, idx int) ([][]rune, int)

func SetAutoComplete 

func SetAutoComplete(completer AutoCompleter)

set auto completer to global instance

func SetHistoryPath 

func SetHistoryPath(fp string)

let readline load history from filepath and try to persist history into disk set fp to "" to prevent readline persisting history to disk so the `AddHistory` will return nil error forever.

func SplitByLine 

func SplitByLine(start, screenWidth int, rs []rune) []string

func SplitSegment 

func SplitSegment(line []rune, pos int) ([][]rune, int)

func SuspendMe 

func SuspendMe()

SuspendMe use to send suspend signal to myself, when we in the raw mode. For OSX it need to send to parent's pid For Linux it need to send to myself

func WaitForResume 

func WaitForResume() chan struct{}

WaitForResume need to call before current process got suspend. It will run a ticker until a long duration is occurs, which means this process is resumed.

Types

type AutoCompleter 

type AutoCompleter interface {
	// Readline will pass the whole line and current offset to it
	// Completer need to pass all the candidates, and how long they shared the same characters in line
	// Example:
	//   [go, git, git-shell, grep]
	//   Do("g", 1) => ["o", "it", "it-shell", "rep"], 1
	//   Do("gi", 2) => ["t", "t-shell"], 2
	//   Do("git", 3) => ["", "-shell"], 3
	Do(line []rune, pos int) (newLine [][]rune, length int)
}

func SegmentFunc 

func SegmentFunc(f func([][]rune, int) [][]rune) AutoCompleter

type CancelableStdin 

type CancelableStdin struct {
	// contains filtered or unexported fields
}

func NewCancelableStdin 

func NewCancelableStdin(r io.Reader) *CancelableStdin

func (*CancelableStdin) Close 

func (c *CancelableStdin) Close() error

func (*CancelableStdin) Read 

func (c *CancelableStdin) Read(b []byte) (n int, err error)

type Config 

type Config struct {
	// prompt supports ANSI escape sequence, so we can color some characters even in windows
	Prompt string

	// readline will persist historys to file where HistoryFile specified
	HistoryFile string
	// specify the max length of historys, it's 500 by default, set it to -1 to disable history
	HistoryLimit           int
	DisableAutoSaveHistory bool
	// enable case-insensitive history searching
	HistorySearchFold bool

	// AutoCompleter will called once user press TAB
	AutoComplete AutoCompleter

	// Any key press will pass to Listener
	// NOTE: Listener will be triggered by (nil, 0, 0) immediately
	Listener Listener

	Painter Painter

	// If VimMode is true, readline will in vim.insert mode by default
	VimMode bool

	InterruptPrompt string
	EOFPrompt       string

	FuncGetWidth func() int

	Stdin       io.ReadCloser
	StdinWriter io.Writer
	Stdout      io.Writer
	Stderr      io.Writer

	EnableMask bool
	MaskRune   rune

	// erase the editing line after user submited it
	// it use in IM usually.
	UniqueEditLine bool

	// filter input runes (may be used to disable CtrlZ or for translating some keys to different actions)
	// -> output = new (translated) rune and true/false if continue with processing this one
	FuncFilterInputRune func(rune) (rune, bool)

	// force use interactive even stdout is not a tty
	FuncIsTerminal      func() bool
	FuncMakeRaw         func() error
	FuncExitRaw         func() error
	FuncOnWidthChanged  func(func())
	ForceUseInteractive bool
	// contains filtered or unexported fields
}

func (Config) Clone 

func (c Config) Clone() *Config

func (*Config) Init 

func (c *Config) Init() error

func (*Config) SetListener 

func (c *Config) SetListener(f func(line []rune, pos int, key rune) (newLine []rune, newPos int, ok bool))

func (*Config) SetPainter 

func (c *Config) SetPainter(p Painter)

type DumpListener 

type DumpListener struct {
	// contains filtered or unexported fields
}

func (*DumpListener) OnChange 

func (d *DumpListener) OnChange(line []rune, pos int, key rune) (newLine []rune, newPos int, ok bool)

type DynamicCompleteFunc 

type DynamicCompleteFunc func(string) []string

Caller type for dynamic completion

type DynamicPrefixCompleterInterface 

type DynamicPrefixCompleterInterface interface {
	PrefixCompleterInterface
	IsDynamic() bool
	GetDynamicNames(line []rune) [][]rune
}

type FillableStdin 

type FillableStdin struct {
	sync.Mutex
	// contains filtered or unexported fields
}

FillableStdin is a stdin reader which can prepend some data before reading into the real stdin

func (*FillableStdin) Close 

func (s *FillableStdin) Close() error

func (*FillableStdin) Read 

func (s *FillableStdin) Read(p []byte) (n int, err error)

Read will read from the local buffer and if no data, read from stdin

type Instance 

type Instance struct {
	Config    *Config
	Terminal  *Terminal
	Operation *Operation
}

func HandleConn 

func HandleConn(cfg Config, conn net.Conn) (*Instance, error)

func New 

func New(prompt string) (*Instance, error)

func NewEx 

func NewEx(cfg *Config) (*Instance, error)

func (*Instance) CaptureExitSignal 

func (i *Instance) CaptureExitSignal()

call CaptureExitSignal when you want readline exit gracefully.

func (*Instance) Clean 

func (i *Instance) Clean()

func (*Instance) Close 

func (i *Instance) Close() error

we must make sure that call Close() before process exit. if there has a pending reading operation, that reading will be interrupted. so you can capture the signal and call Instance.Close(), it's thread-safe.

func (*Instance) GenPasswordConfig 

func (i *Instance) GenPasswordConfig() *Config

func (*Instance) HistoryDisable 

func (i *Instance) HistoryDisable()

HistoryDisable the save of the commands into the history

func (*Instance) HistoryEnable 

func (i *Instance) HistoryEnable()

HistoryEnable the save of the commands into the history (default on)

func (*Instance) IsVimMode 

func (i *Instance) IsVimMode() bool

func (*Instance) Line 

func (i *Instance) Line() *Result

func (*Instance) ReadPassword 

func (i *Instance) ReadPassword(prompt string) ([]byte, error)

func (*Instance) ReadPasswordEx 

func (i *Instance) ReadPasswordEx(prompt string, l Listener) ([]byte, error)

func (*Instance) ReadPasswordWithConfig 

func (i *Instance) ReadPasswordWithConfig(cfg *Config) ([]byte, error)

we can generate a config by `i.GenPasswordConfig()`

func (*Instance) ReadSlice 

func (i *Instance) ReadSlice() ([]byte, error)

same as readline

func (*Instance) Readline 

func (i *Instance) Readline() (string, error)

err is one of (nil, io.EOF, readline.ErrInterrupt)

func (*Instance) ReadlineWithDefault 

func (i *Instance) ReadlineWithDefault(what string) (string, error)

func (*Instance) Refresh 

func (i *Instance) Refresh()

func (*Instance) ResetHistory 

func (i *Instance) ResetHistory()

func (*Instance) SaveHistory 

func (i *Instance) SaveHistory(content string) error

func (*Instance) SetConfig 

func (i *Instance) SetConfig(cfg *Config) *Config

func (*Instance) SetHistoryPath 

func (i *Instance) SetHistoryPath(p string)

change history persistence in runtime

func (*Instance) SetMaskRune 

func (i *Instance) SetMaskRune(r rune)

func (*Instance) SetPrompt 

func (i *Instance) SetPrompt(s string)

func (*Instance) SetVimMode 

func (i *Instance) SetVimMode(on bool)

switch VimMode in runtime

func (*Instance) Stderr 

func (i *Instance) Stderr() io.Writer

readline will refresh automatic when write through Stdout()

func (*Instance) Stdout 

func (i *Instance) Stdout() io.Writer

readline will refresh automatic when write through Stdout()

func (*Instance) Write 

func (i *Instance) Write(b []byte) (int, error)

func (*Instance) WriteStdin 

func (i *Instance) WriteStdin(val []byte) (int, error)

WriteStdin prefill the next Stdin fetch Next time you call ReadLine() this value will be writen before the user input ie : 

i := readline.New()
i.WriteStdin([]byte("test"))
_, _= i.Readline()

gives

> test[cursor]

type InterruptError 

type InterruptError struct {
	Line []rune
}

func (*InterruptError) Error 

func (*InterruptError) Error() string

type Listener 

type Listener interface {
	OnChange(line []rune, pos int, key rune) (newLine []rune, newPos int, ok bool)
}

func FuncListener 

func FuncListener(f func(line []rune, pos int, key rune) (newLine []rune, newPos int, ok bool)) Listener

type Message 

type Message struct {
	Type MsgType
	Data []byte
}

func NewMessage 

func NewMessage(t MsgType, data []byte) *Message

func ReadMessage 

func ReadMessage(r io.Reader) (*Message, error)

func (*Message) WriteTo 

func (m *Message) WriteTo(w io.Writer) (int, error)

type MsgType 

type MsgType int16

type Operation 

type Operation struct {
	// contains filtered or unexported fields
}

func NewOperation 

func NewOperation(t *Terminal, cfg *Config) *Operation

func (*Operation) Clean 

func (o *Operation) Clean()

func (*Operation) Close 

func (o *Operation) Close()

func (Operation) CompleteRefresh 

func (o Operation) CompleteRefresh()

func (Operation) EnterCompleteMode 

func (o Operation) EnterCompleteMode(offset int, candidate [][]rune)

func (Operation) EnterCompleteSelectMode 

func (o Operation) EnterCompleteSelectMode()

func (Operation) EnterPasswordMode 

func (o Operation) EnterPasswordMode(cfg *Config) (err error)

func (Operation) EnterVimInsertMode 

func (o Operation) EnterVimInsertMode()

func (Operation) ExitCompleteMode 

func (o Operation) ExitCompleteMode(revent bool)

func (Operation) ExitCompleteSelectMode 

func (o Operation) ExitCompleteSelectMode()

func (Operation) ExitPasswordMode 

func (o Operation) ExitPasswordMode()

func (Operation) ExitSearchMode 

func (o Operation) ExitSearchMode(revert bool)

func (Operation) ExitVimInsertMode 

func (o Operation) ExitVimInsertMode()

func (Operation) ExitVimMode 

func (o Operation) ExitVimMode()

func (*Operation) GenPasswordConfig 

func (o *Operation) GenPasswordConfig() *Config

func (*Operation) GetConfig 

func (o *Operation) GetConfig() *Config

func (Operation) HandleCompleteSelect 

func (o Operation) HandleCompleteSelect(r rune) bool

func (Operation) HandleVim 

func (o Operation) HandleVim(r rune, readNext func() rune) rune

func (Operation) HandleVimNormal 

func (o Operation) HandleVimNormal(r rune, readNext func() rune) (t rune)

func (Operation) IsEnableVimMode 

func (o Operation) IsEnableVimMode() bool

func (Operation) IsInCompleteMode 

func (o Operation) IsInCompleteMode() bool

func (Operation) IsInCompleteSelectMode 

func (o Operation) IsInCompleteSelectMode() bool

func (*Operation) IsNormalMode 

func (o *Operation) IsNormalMode() bool

func (Operation) IsSearchMode 

func (o Operation) IsSearchMode() bool

func (Operation) OnComplete 

func (o Operation) OnComplete() bool

func (*Operation) Password 

func (o *Operation) Password(prompt string) ([]byte, error)

func (Operation) PasswordConfig 

func (o Operation) PasswordConfig() *Config

func (*Operation) PasswordEx 

func (o *Operation) PasswordEx(prompt string, l Listener) ([]byte, error)

func (*Operation) PasswordWithConfig 

func (o *Operation) PasswordWithConfig(cfg *Config) ([]byte, error)

func (*Operation) Refresh 

func (o *Operation) Refresh()

func (*Operation) ResetHistory 

func (o *Operation) ResetHistory()

func (*Operation) Runes 

func (o *Operation) Runes() ([]rune, error)

func (*Operation) SaveHistory 

func (o *Operation) SaveHistory(content string) error

if err is not nil, it just mean it fail to write to file other things goes fine.

func (Operation) SearchBackspace 

func (o Operation) SearchBackspace()

func (Operation) SearchChar 

func (o Operation) SearchChar(r rune)

func (Operation) SearchMode 

func (o Operation) SearchMode(dir int) bool

func (Operation) SearchRefresh 

func (o Operation) SearchRefresh(x int)

func (*Operation) SetBuffer 

func (o *Operation) SetBuffer(what string)

func (*Operation) SetConfig 

func (op *Operation) SetConfig(cfg *Config) (*Config, error)

func (*Operation) SetHistoryPath 

func (o *Operation) SetHistoryPath(path string)

func (*Operation) SetMaskRune 

func (o *Operation) SetMaskRune(r rune)

func (*Operation) SetPrompt 

func (o *Operation) SetPrompt(s string)

func (*Operation) SetTitle 

func (o *Operation) SetTitle(t string)

func (Operation) SetVimMode 

func (o Operation) SetVimMode(on bool)

func (*Operation) Slice 

func (o *Operation) Slice() ([]byte, error)

func (*Operation) Stderr 

func (o *Operation) Stderr() io.Writer

func (*Operation) Stdout 

func (o *Operation) Stdout() io.Writer

func (*Operation) String 

func (o *Operation) String() (string, error)

type Painter 

type Painter interface {
	Paint(line []rune, pos int) []rune
}

type PrefixCompleter 

type PrefixCompleter struct {
	Name     []rune
	Dynamic  bool
	Callback DynamicCompleteFunc
	Children []PrefixCompleterInterface
}

func NewPrefixCompleter 

func NewPrefixCompleter(pc ...PrefixCompleterInterface) *PrefixCompleter

func PcItem 

func PcItem(name string, pc ...PrefixCompleterInterface) *PrefixCompleter

func PcItemDynamic 

func PcItemDynamic(callback DynamicCompleteFunc, pc ...PrefixCompleterInterface) *PrefixCompleter

func (*PrefixCompleter) Do 

func (p *PrefixCompleter) Do(line []rune, pos int) (newLine [][]rune, offset int)

func (*PrefixCompleter) GetChildren 

func (p *PrefixCompleter) GetChildren() []PrefixCompleterInterface

func (*PrefixCompleter) GetDynamicNames 

func (p *PrefixCompleter) GetDynamicNames(line []rune) [][]rune

func (*PrefixCompleter) GetName 

func (p *PrefixCompleter) GetName() []rune

func (*PrefixCompleter) IsDynamic 

func (p *PrefixCompleter) IsDynamic() bool

func (*PrefixCompleter) Print 

func (p *PrefixCompleter) Print(prefix string, level int, buf *bytes.Buffer)

func (*PrefixCompleter) SetChildren 

func (p *PrefixCompleter) SetChildren(children []PrefixCompleterInterface)

func (*PrefixCompleter) Tree 

func (p *PrefixCompleter) Tree(prefix string) string

type PrefixCompleterInterface 

type PrefixCompleterInterface interface {
	Print(prefix string, level int, buf *bytes.Buffer)
	Do(line []rune, pos int) (newLine [][]rune, length int)
	GetName() []rune
	GetChildren() []PrefixCompleterInterface
	SetChildren(children []PrefixCompleterInterface)
}

type RawMode 

type RawMode struct {
	// contains filtered or unexported fields
}

func (*RawMode) Enter 

func (r *RawMode) Enter() (err error)

func (*RawMode) Exit 

func (r *RawMode) Exit() error

type RemoteCli 

type RemoteCli struct {
	// contains filtered or unexported fields
}

func NewRemoteCli 

func NewRemoteCli(conn net.Conn) (*RemoteCli, error)

func (*RemoteCli) Close 

func (r *RemoteCli) Close()

func (*RemoteCli) MarkIsTerminal 

func (r *RemoteCli) MarkIsTerminal(is bool)

func (*RemoteCli) Serve 

func (r *RemoteCli) Serve() error

func (*RemoteCli) ServeBy 

func (r *RemoteCli) ServeBy(source io.Reader) error

func (*RemoteCli) Write 

func (r *RemoteCli) Write(b []byte) (int, error)

type RemoteSvr 

type RemoteSvr struct {
	// contains filtered or unexported fields
}

func NewRemoteSvr 

func NewRemoteSvr(conn net.Conn) (*RemoteSvr, error)

func (*RemoteSvr) Close 

func (r *RemoteSvr) Close() error

func (*RemoteSvr) EnterRawMode 

func (r *RemoteSvr) EnterRawMode() error

func (*RemoteSvr) ExitRawMode 

func (r *RemoteSvr) ExitRawMode() error

func (*RemoteSvr) GetWidth 

func (r *RemoteSvr) GetWidth() int

func (*RemoteSvr) GotIsTerminal 

func (r *RemoteSvr) GotIsTerminal(data []byte)

func (*RemoteSvr) GotReportWidth 

func (r *RemoteSvr) GotReportWidth(data []byte)

func (*RemoteSvr) HandleConfig 

func (r *RemoteSvr) HandleConfig(cfg *Config)

func (*RemoteSvr) IsTerminal 

func (r *RemoteSvr) IsTerminal() bool

func (*RemoteSvr) Read 

func (r *RemoteSvr) Read(b []byte) (int, error)

func (*RemoteSvr) Write 

func (r *RemoteSvr) Write(b []byte) (int, error)

type Result 

type Result struct {
	Line  string
	Error error
}

func (*Result) CanBreak 

func (l *Result) CanBreak() bool

func (*Result) CanContinue 

func (l *Result) CanContinue() bool

type RuneBuffer 

type RuneBuffer struct {
	sync.Mutex
	// contains filtered or unexported fields
}

func NewRuneBuffer 

func NewRuneBuffer(w io.Writer, prompt string, cfg *Config, width int) *RuneBuffer

func (*RuneBuffer) BackEscapeWord 

func (r *RuneBuffer) BackEscapeWord()

func (*RuneBuffer) Backspace 

func (r *RuneBuffer) Backspace()

func (*RuneBuffer) Backup 

func (r *RuneBuffer) Backup()

func (*RuneBuffer) Clean 

func (r *RuneBuffer) Clean()

func (*RuneBuffer) CurrentWidth 

func (r *RuneBuffer) CurrentWidth(x int) int

func (*RuneBuffer) CursorLineCount 

func (r *RuneBuffer) CursorLineCount() int

func (*RuneBuffer) Delete 

func (r *RuneBuffer) Delete() (success bool)

func (*RuneBuffer) DeleteWord 

func (r *RuneBuffer) DeleteWord()

func (*RuneBuffer) Erase 

func (r *RuneBuffer) Erase()

func (*RuneBuffer) IdxLine 

func (r *RuneBuffer) IdxLine(width int) int

func (*RuneBuffer) IsCursorInEnd 

func (r *RuneBuffer) IsCursorInEnd() bool

func (*RuneBuffer) Kill 

func (r *RuneBuffer) Kill()

func (*RuneBuffer) KillFront 

func (r *RuneBuffer) KillFront()

func (*RuneBuffer) Len 

func (r *RuneBuffer) Len() int

func (*RuneBuffer) LineCount 

func (r *RuneBuffer) LineCount(width int) int

func (*RuneBuffer) MoveBackward 

func (r *RuneBuffer) MoveBackward()

func (*RuneBuffer) MoveForward 

func (r *RuneBuffer) MoveForward()

func (*RuneBuffer) MoveTo 

func (r *RuneBuffer) MoveTo(ch rune, prevChar, reverse bool) (success bool)

func (*RuneBuffer) MoveToEndWord 

func (r *RuneBuffer) MoveToEndWord()

func (*RuneBuffer) MoveToLineEnd 

func (r *RuneBuffer) MoveToLineEnd()

func (*RuneBuffer) MoveToLineStart 

func (r *RuneBuffer) MoveToLineStart()

func (*RuneBuffer) MoveToNextWord 

func (r *RuneBuffer) MoveToNextWord()

func (*RuneBuffer) MoveToPrevWord 

func (r *RuneBuffer) MoveToPrevWord() (success bool)

func (*RuneBuffer) OnWidthChange 

func (r *RuneBuffer) OnWidthChange(newWidth int)

func (*RuneBuffer) Pos 

func (r *RuneBuffer) Pos() int

func (*RuneBuffer) PromptLen 

func (r *RuneBuffer) PromptLen() int

func (*RuneBuffer) Refresh 

func (r *RuneBuffer) Refresh(f func())

func (*RuneBuffer) Replace 

func (r *RuneBuffer) Replace(ch rune)

func (*RuneBuffer) Reset 

func (r *RuneBuffer) Reset() []rune

func (*RuneBuffer) Restore 

func (r *RuneBuffer) Restore()

func (*RuneBuffer) RuneSlice 

func (r *RuneBuffer) RuneSlice(i int) []rune

func (*RuneBuffer) Runes 

func (r *RuneBuffer) Runes() []rune

func (*RuneBuffer) Set 

func (r *RuneBuffer) Set(buf []rune)

func (*RuneBuffer) SetConfig 

func (r *RuneBuffer) SetConfig(cfg *Config)

func (*RuneBuffer) SetMask 

func (r *RuneBuffer) SetMask(m rune)

func (*RuneBuffer) SetOffset 

func (r *RuneBuffer) SetOffset(offset string)

func (*RuneBuffer) SetPrompt 

func (r *RuneBuffer) SetPrompt(prompt string)

func (*RuneBuffer) SetStyle 

func (r *RuneBuffer) SetStyle(start, end int, style string)

func (*RuneBuffer) SetWithIdx 

func (r *RuneBuffer) SetWithIdx(idx int, buf []rune)

func (*RuneBuffer) Transpose 

func (r *RuneBuffer) Transpose()

func (*RuneBuffer) WriteRune 

func (r *RuneBuffer) WriteRune(s rune)

func (*RuneBuffer) WriteRunes 

func (r *RuneBuffer) WriteRunes(s []rune)

func (*RuneBuffer) WriteString 

func (r *RuneBuffer) WriteString(s string)

func (*RuneBuffer) Yank 

func (r *RuneBuffer) Yank()

type Runes 

type Runes struct{}

func (Runes) Aggregate 

func (Runes) Aggregate(candicate [][]rune) (same []rune, size int)

func (Runes) Backspace 

func (Runes) Backspace(r []rune) []byte

func (Runes) ColorFilter 

func (Runes) ColorFilter(r []rune) []rune

func (Runes) Copy 

func (Runes) Copy(r []rune) []rune

func (Runes) Equal 

func (Runes) Equal(a, b []rune) bool

func (Runes) EqualFold 

func (r Runes) EqualFold(a, b []rune) bool

func (Runes) EqualRune 

func (Runes) EqualRune(a, b rune, fold bool) bool

func (Runes) EqualRuneFold 

func (r Runes) EqualRuneFold(a, b rune) bool

func (Runes) HasPrefix 

func (Runes) HasPrefix(r, prefix []rune) bool

func (Runes) HasPrefixFold 

func (Runes) HasPrefixFold(r, prefix []rune) bool

func (Runes) Index 

func (Runes) Index(r rune, rs []rune) int

func (Runes) IndexAll 

func (rs Runes) IndexAll(r, sub []rune) int

Search in runes from front to end

func (Runes) IndexAllBck 

func (rs Runes) IndexAllBck(r, sub []rune) int

Search in runes from end to front

func (Runes) IndexAllBckEx 

func (rs Runes) IndexAllBckEx(r, sub []rune, fold bool) int

func (Runes) IndexAllEx 

func (rs Runes) IndexAllEx(r, sub []rune, fold bool) int

func (Runes) TrimSpaceLeft 

func (Runes) TrimSpaceLeft(in []rune) []rune

func (Runes) Width 

func (Runes) Width(r rune) int

func (Runes) WidthAll 

func (Runes) WidthAll(r []rune) (length int)

type SegmentComplete 

type SegmentComplete struct {
	SegmentCompleter
}

func SegmentAutoComplete 

func SegmentAutoComplete(completer SegmentCompleter) *SegmentComplete

func (*SegmentComplete) Do 

func (c *SegmentComplete) Do(line []rune, pos int) (newLine [][]rune, offset int)

type SegmentCompleter 

type SegmentCompleter interface {
	// a
	// |- a1
	// |--- a11
	// |- a2
	// b
	// input:
	//   DoTree([], 0) [a, b]
	//   DoTree([a], 1) [a]
	//   DoTree([a, ], 0) [a1, a2]
	//   DoTree([a, a], 1) [a1, a2]
	//   DoTree([a, a1], 2) [a1]
	//   DoTree([a, a1, ], 0) [a11]
	//   DoTree([a, a1, a], 1) [a11]
	DoSegment([][]rune, int) [][]rune
}

type State 

type State struct {
	// contains filtered or unexported fields
}

State contains the state of a terminal.

func GetState 

func GetState(fd int) (*State, error)

GetState returns the current state of a terminal which may be useful to restore the terminal after a signal.

func MakeRaw 

func MakeRaw(fd int) (*State, error)

MakeRaw put the terminal connected to the given file descriptor into raw mode and returns the previous state of the terminal so that it can be restored.

type TabCompleter 

type TabCompleter struct{}

func (*TabCompleter) Do 

func (t *TabCompleter) Do([]rune, int) ([][]rune, int)

type Terminal 

type Terminal struct {
	// contains filtered or unexported fields
}

func NewTerminal 

func NewTerminal(cfg *Config) (*Terminal, error)

func (*Terminal) Bell 

func (t *Terminal) Bell()

func (*Terminal) Close 

func (t *Terminal) Close() error

func (*Terminal) EnterRawMode 

func (t *Terminal) EnterRawMode() (err error)

func (*Terminal) ExitRawMode 

func (t *Terminal) ExitRawMode() (err error)

func (*Terminal) GetConfig 

func (t *Terminal) GetConfig() *Config

func (*Terminal) GetOffset 

func (t *Terminal) GetOffset(f func(offset string))

func (*Terminal) IsReading 

func (t *Terminal) IsReading() bool

func (*Terminal) KickRead 

func (t *Terminal) KickRead()

func (*Terminal) Print 

func (t *Terminal) Print(s string)

func (*Terminal) PrintRune 

func (t *Terminal) PrintRune(r rune)

func (*Terminal) ReadRune 

func (t *Terminal) ReadRune() rune

return rune(0) if meet EOF

func (*Terminal) Readline 

func (t *Terminal) Readline() *Operation

func (*Terminal) SetConfig 

func (t *Terminal) SetConfig(c *Config) error

func (*Terminal) SleepToResume 

func (t *Terminal) SleepToResume()

SleepToResume will sleep myself, and return only if I'm resumed.

func (*Terminal) Write 

func (t *Terminal) Write(b []byte) (int, error)

func (*Terminal) WriteStdin 

func (t *Terminal) WriteStdin(b []byte) (int, error)

WriteStdin prefill the next Stdin fetch Next time you call ReadLine() this value will be writen before the user input

type Termios 

type Termios syscall.Termios

Source Files

View all Source files

Directories

Path Synopsis
example
readline-demo
readline-im
readline-multiline
readline-pass-strength
This is a small example using readline to read a password and check it's strength while typing using the zxcvbn library.
 This is a small example using readline to read a password and check it's strength while typing using the zxcvbn library.
readline-remote/readline-remote-client
readline-remote/readline-remote-server
deprecated.
 deprecated.

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