mirror of
https://github.com/zyedidia/micro.git
synced 2026-02-05 06:30:28 +09:00
420 lines
13 KiB
Go
420 lines
13 KiB
Go
package main
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/yosuke-furukawa/json5/encoding/json5"
|
|
"github.com/zyedidia/tcell"
|
|
)
|
|
|
|
var bindings map[Key][]func(*View, bool) bool
|
|
var helpBinding string
|
|
|
|
var bindingActions = map[string]func(*View, bool) bool{
|
|
"CursorUp": (*View).CursorUp,
|
|
"CursorDown": (*View).CursorDown,
|
|
"CursorPageUp": (*View).CursorPageUp,
|
|
"CursorPageDown": (*View).CursorPageDown,
|
|
"CursorLeft": (*View).CursorLeft,
|
|
"CursorRight": (*View).CursorRight,
|
|
"CursorStart": (*View).CursorStart,
|
|
"CursorEnd": (*View).CursorEnd,
|
|
"SelectToStart": (*View).SelectToStart,
|
|
"SelectToEnd": (*View).SelectToEnd,
|
|
"SelectUp": (*View).SelectUp,
|
|
"SelectDown": (*View).SelectDown,
|
|
"SelectLeft": (*View).SelectLeft,
|
|
"SelectRight": (*View).SelectRight,
|
|
"WordRight": (*View).WordRight,
|
|
"WordLeft": (*View).WordLeft,
|
|
"SelectWordRight": (*View).SelectWordRight,
|
|
"SelectWordLeft": (*View).SelectWordLeft,
|
|
"DeleteWordRight": (*View).DeleteWordRight,
|
|
"DeleteWordLeft": (*View).DeleteWordLeft,
|
|
"SelectToStartOfLine": (*View).SelectToStartOfLine,
|
|
"SelectToEndOfLine": (*View).SelectToEndOfLine,
|
|
"InsertNewline": (*View).InsertNewline,
|
|
"InsertSpace": (*View).InsertSpace,
|
|
"Backspace": (*View).Backspace,
|
|
"Delete": (*View).Delete,
|
|
"InsertTab": (*View).InsertTab,
|
|
"Save": (*View).Save,
|
|
"Find": (*View).Find,
|
|
"FindNext": (*View).FindNext,
|
|
"FindPrevious": (*View).FindPrevious,
|
|
"Center": (*View).Center,
|
|
"Undo": (*View).Undo,
|
|
"Redo": (*View).Redo,
|
|
"Copy": (*View).Copy,
|
|
"Cut": (*View).Cut,
|
|
"CutLine": (*View).CutLine,
|
|
"DuplicateLine": (*View).DuplicateLine,
|
|
"DeleteLine": (*View).DeleteLine,
|
|
"IndentSelection": (*View).IndentSelection,
|
|
"OutdentSelection": (*View).OutdentSelection,
|
|
"Paste": (*View).Paste,
|
|
"SelectAll": (*View).SelectAll,
|
|
"OpenFile": (*View).OpenFile,
|
|
"Start": (*View).Start,
|
|
"End": (*View).End,
|
|
"PageUp": (*View).PageUp,
|
|
"PageDown": (*View).PageDown,
|
|
"HalfPageUp": (*View).HalfPageUp,
|
|
"HalfPageDown": (*View).HalfPageDown,
|
|
"StartOfLine": (*View).StartOfLine,
|
|
"EndOfLine": (*View).EndOfLine,
|
|
"ToggleHelp": (*View).ToggleHelp,
|
|
"ToggleRuler": (*View).ToggleRuler,
|
|
"JumpLine": (*View).JumpLine,
|
|
"ClearStatus": (*View).ClearStatus,
|
|
"ShellMode": (*View).ShellMode,
|
|
"CommandMode": (*View).CommandMode,
|
|
"Quit": (*View).Quit,
|
|
"QuitAll": (*View).QuitAll,
|
|
"AddTab": (*View).AddTab,
|
|
"PreviousTab": (*View).PreviousTab,
|
|
"NextTab": (*View).NextTab,
|
|
"NextSplit": (*View).NextSplit,
|
|
"PreviousSplit": (*View).PreviousSplit,
|
|
|
|
// This was changed to InsertNewline but I don't want to break backwards compatibility
|
|
"InsertEnter": (*View).InsertNewline,
|
|
}
|
|
|
|
var bindingKeys = map[string]tcell.Key{
|
|
"Up": tcell.KeyUp,
|
|
"Down": tcell.KeyDown,
|
|
"Right": tcell.KeyRight,
|
|
"Left": tcell.KeyLeft,
|
|
"UpLeft": tcell.KeyUpLeft,
|
|
"UpRight": tcell.KeyUpRight,
|
|
"DownLeft": tcell.KeyDownLeft,
|
|
"DownRight": tcell.KeyDownRight,
|
|
"Center": tcell.KeyCenter,
|
|
"PageUp": tcell.KeyPgUp,
|
|
"PageDown": tcell.KeyPgDn,
|
|
"Home": tcell.KeyHome,
|
|
"End": tcell.KeyEnd,
|
|
"Insert": tcell.KeyInsert,
|
|
"Delete": tcell.KeyDelete,
|
|
"Help": tcell.KeyHelp,
|
|
"Exit": tcell.KeyExit,
|
|
"Clear": tcell.KeyClear,
|
|
"Cancel": tcell.KeyCancel,
|
|
"Print": tcell.KeyPrint,
|
|
"Pause": tcell.KeyPause,
|
|
"Backtab": tcell.KeyBacktab,
|
|
"F1": tcell.KeyF1,
|
|
"F2": tcell.KeyF2,
|
|
"F3": tcell.KeyF3,
|
|
"F4": tcell.KeyF4,
|
|
"F5": tcell.KeyF5,
|
|
"F6": tcell.KeyF6,
|
|
"F7": tcell.KeyF7,
|
|
"F8": tcell.KeyF8,
|
|
"F9": tcell.KeyF9,
|
|
"F10": tcell.KeyF10,
|
|
"F11": tcell.KeyF11,
|
|
"F12": tcell.KeyF12,
|
|
"F13": tcell.KeyF13,
|
|
"F14": tcell.KeyF14,
|
|
"F15": tcell.KeyF15,
|
|
"F16": tcell.KeyF16,
|
|
"F17": tcell.KeyF17,
|
|
"F18": tcell.KeyF18,
|
|
"F19": tcell.KeyF19,
|
|
"F20": tcell.KeyF20,
|
|
"F21": tcell.KeyF21,
|
|
"F22": tcell.KeyF22,
|
|
"F23": tcell.KeyF23,
|
|
"F24": tcell.KeyF24,
|
|
"F25": tcell.KeyF25,
|
|
"F26": tcell.KeyF26,
|
|
"F27": tcell.KeyF27,
|
|
"F28": tcell.KeyF28,
|
|
"F29": tcell.KeyF29,
|
|
"F30": tcell.KeyF30,
|
|
"F31": tcell.KeyF31,
|
|
"F32": tcell.KeyF32,
|
|
"F33": tcell.KeyF33,
|
|
"F34": tcell.KeyF34,
|
|
"F35": tcell.KeyF35,
|
|
"F36": tcell.KeyF36,
|
|
"F37": tcell.KeyF37,
|
|
"F38": tcell.KeyF38,
|
|
"F39": tcell.KeyF39,
|
|
"F40": tcell.KeyF40,
|
|
"F41": tcell.KeyF41,
|
|
"F42": tcell.KeyF42,
|
|
"F43": tcell.KeyF43,
|
|
"F44": tcell.KeyF44,
|
|
"F45": tcell.KeyF45,
|
|
"F46": tcell.KeyF46,
|
|
"F47": tcell.KeyF47,
|
|
"F48": tcell.KeyF48,
|
|
"F49": tcell.KeyF49,
|
|
"F50": tcell.KeyF50,
|
|
"F51": tcell.KeyF51,
|
|
"F52": tcell.KeyF52,
|
|
"F53": tcell.KeyF53,
|
|
"F54": tcell.KeyF54,
|
|
"F55": tcell.KeyF55,
|
|
"F56": tcell.KeyF56,
|
|
"F57": tcell.KeyF57,
|
|
"F58": tcell.KeyF58,
|
|
"F59": tcell.KeyF59,
|
|
"F60": tcell.KeyF60,
|
|
"F61": tcell.KeyF61,
|
|
"F62": tcell.KeyF62,
|
|
"F63": tcell.KeyF63,
|
|
"F64": tcell.KeyF64,
|
|
"CtrlSpace": tcell.KeyCtrlSpace,
|
|
"CtrlA": tcell.KeyCtrlA,
|
|
"CtrlB": tcell.KeyCtrlB,
|
|
"CtrlC": tcell.KeyCtrlC,
|
|
"CtrlD": tcell.KeyCtrlD,
|
|
"CtrlE": tcell.KeyCtrlE,
|
|
"CtrlF": tcell.KeyCtrlF,
|
|
"CtrlG": tcell.KeyCtrlG,
|
|
"CtrlH": tcell.KeyCtrlH,
|
|
"CtrlI": tcell.KeyCtrlI,
|
|
"CtrlJ": tcell.KeyCtrlJ,
|
|
"CtrlK": tcell.KeyCtrlK,
|
|
"CtrlL": tcell.KeyCtrlL,
|
|
"CtrlM": tcell.KeyCtrlM,
|
|
"CtrlN": tcell.KeyCtrlN,
|
|
"CtrlO": tcell.KeyCtrlO,
|
|
"CtrlP": tcell.KeyCtrlP,
|
|
"CtrlQ": tcell.KeyCtrlQ,
|
|
"CtrlR": tcell.KeyCtrlR,
|
|
"CtrlS": tcell.KeyCtrlS,
|
|
"CtrlT": tcell.KeyCtrlT,
|
|
"CtrlU": tcell.KeyCtrlU,
|
|
"CtrlV": tcell.KeyCtrlV,
|
|
"CtrlW": tcell.KeyCtrlW,
|
|
"CtrlX": tcell.KeyCtrlX,
|
|
"CtrlY": tcell.KeyCtrlY,
|
|
"CtrlZ": tcell.KeyCtrlZ,
|
|
"CtrlLeftSq": tcell.KeyCtrlLeftSq,
|
|
"CtrlBackslash": tcell.KeyCtrlBackslash,
|
|
"CtrlRightSq": tcell.KeyCtrlRightSq,
|
|
"CtrlCarat": tcell.KeyCtrlCarat,
|
|
"CtrlUnderscore": tcell.KeyCtrlUnderscore,
|
|
"Backspace": tcell.KeyBackspace,
|
|
"Tab": tcell.KeyTab,
|
|
"Esc": tcell.KeyEsc,
|
|
"Escape": tcell.KeyEscape,
|
|
"Enter": tcell.KeyEnter,
|
|
"Backspace2": tcell.KeyBackspace2,
|
|
|
|
// I renamed these keys to PageUp and PageDown but I don't want to break someone's keybindings
|
|
"PgUp": tcell.KeyPgUp,
|
|
"PgDown": tcell.KeyPgDn,
|
|
}
|
|
|
|
// The Key struct holds the data for a keypress (keycode + modifiers)
|
|
type Key struct {
|
|
keyCode tcell.Key
|
|
modifiers tcell.ModMask
|
|
r rune
|
|
}
|
|
|
|
// InitBindings initializes the keybindings for micro
|
|
func InitBindings() {
|
|
bindings = make(map[Key][]func(*View, bool) bool)
|
|
|
|
var parsed map[string]string
|
|
defaults := DefaultBindings()
|
|
|
|
filename := configDir + "/bindings.json"
|
|
if _, e := os.Stat(filename); e == nil {
|
|
input, err := ioutil.ReadFile(filename)
|
|
if err != nil {
|
|
TermMessage("Error reading bindings.json file: " + err.Error())
|
|
return
|
|
}
|
|
|
|
err = json5.Unmarshal(input, &parsed)
|
|
if err != nil {
|
|
TermMessage("Error reading bindings.json:", err.Error())
|
|
}
|
|
}
|
|
|
|
parseBindings(defaults)
|
|
parseBindings(parsed)
|
|
}
|
|
|
|
func parseBindings(userBindings map[string]string) {
|
|
for k, v := range userBindings {
|
|
BindKey(k, v)
|
|
}
|
|
}
|
|
|
|
// findKey will find binding Key 'b' using string 'k'
|
|
func findKey(k string) (b Key, ok bool) {
|
|
modifiers := tcell.ModNone
|
|
|
|
// First, we'll strip off all the modifiers in the name and add them to the
|
|
// ModMask
|
|
modSearch:
|
|
for {
|
|
switch {
|
|
case strings.HasPrefix(k, "-"):
|
|
// We optionally support dashes between modifiers
|
|
k = k[1:]
|
|
case strings.HasPrefix(k, "Ctrl"):
|
|
k = k[4:]
|
|
modifiers |= tcell.ModCtrl
|
|
case strings.HasPrefix(k, "Alt"):
|
|
k = k[3:]
|
|
modifiers |= tcell.ModAlt
|
|
case strings.HasPrefix(k, "Shift"):
|
|
k = k[5:]
|
|
modifiers |= tcell.ModShift
|
|
default:
|
|
break modSearch
|
|
}
|
|
}
|
|
|
|
// Control is handled specially, since some character codes in bindingKeys
|
|
// are different when Control is depressed. We should check for Control keys
|
|
// first.
|
|
if modifiers&tcell.ModCtrl != 0 {
|
|
// see if the key is in bindingKeys with the Ctrl prefix.
|
|
if code, ok := bindingKeys["Ctrl"+k]; ok {
|
|
// It is, we're done.
|
|
return Key{
|
|
keyCode: code,
|
|
modifiers: modifiers,
|
|
r: 0,
|
|
}, true
|
|
}
|
|
}
|
|
|
|
// See if we can find the key in bindingKeys
|
|
if code, ok := bindingKeys[k]; ok {
|
|
return Key{
|
|
keyCode: code,
|
|
modifiers: modifiers,
|
|
r: 0,
|
|
}, true
|
|
}
|
|
|
|
// If we were given one character, then we've got a rune.
|
|
if len(k) == 1 {
|
|
return Key{
|
|
keyCode: tcell.KeyRune,
|
|
modifiers: modifiers,
|
|
r: rune(k[0]),
|
|
}, true
|
|
}
|
|
|
|
// We don't know what happened.
|
|
return Key{}, false
|
|
}
|
|
|
|
// findAction will find 'action' using string 'v'
|
|
func findAction(v string) (action func(*View, bool) bool) {
|
|
action, ok := bindingActions[v]
|
|
if !ok {
|
|
// If the user seems to be binding a function that doesn't exist
|
|
// We hope that it's a lua function that exists and bind it to that
|
|
action = LuaFunctionBinding(v)
|
|
}
|
|
return action
|
|
}
|
|
|
|
// BindKey takes a key and an action and binds the two together
|
|
func BindKey(k, v string) {
|
|
key, ok := findKey(k)
|
|
if !ok {
|
|
return
|
|
}
|
|
if v == "ToggleHelp" {
|
|
helpBinding = k
|
|
}
|
|
|
|
actionNames := strings.Split(v, ",")
|
|
actions := make([]func(*View, bool) bool, 0, len(actionNames))
|
|
for _, actionName := range actionNames {
|
|
actions = append(actions, findAction(actionName))
|
|
}
|
|
|
|
bindings[key] = actions
|
|
}
|
|
|
|
// DefaultBindings returns a map containing micro's default keybindings
|
|
func DefaultBindings() map[string]string {
|
|
return map[string]string{
|
|
"Up": "CursorUp",
|
|
"Down": "CursorDown",
|
|
"Right": "CursorRight",
|
|
"Left": "CursorLeft",
|
|
"ShiftUp": "SelectUp",
|
|
"ShiftDown": "SelectDown",
|
|
"ShiftLeft": "SelectLeft",
|
|
"ShiftRight": "SelectRight",
|
|
"AltLeft": "WordLeft",
|
|
"AltRight": "WordRight",
|
|
"AltShiftRight": "SelectWordRight",
|
|
"AltShiftLeft": "SelectWordLeft",
|
|
"CtrlLeft": "StartOfLine",
|
|
"CtrlRight": "EndOfLine",
|
|
"CtrlShiftLeft": "SelectToStartOfLine",
|
|
"CtrlShiftRight": "SelectToEndOfLine",
|
|
"CtrlUp": "CursorStart",
|
|
"CtrlDown": "CursorEnd",
|
|
"CtrlShiftUp": "SelectToStart",
|
|
"CtrlShiftDown": "SelectToEnd",
|
|
"Enter": "InsertNewline",
|
|
"Space": "InsertSpace",
|
|
"Backspace": "Backspace",
|
|
"Backspace2": "Backspace",
|
|
"Alt-Backspace": "DeleteWordLeft",
|
|
"Alt-Backspace2": "DeleteWordLeft",
|
|
"Tab": "IndentSelection,InsertTab",
|
|
"Backtab": "OutdentSelection",
|
|
"CtrlO": "OpenFile",
|
|
"CtrlS": "Save",
|
|
"CtrlF": "Find",
|
|
"CtrlN": "FindNext",
|
|
"CtrlP": "FindPrevious",
|
|
"CtrlZ": "Undo",
|
|
"CtrlY": "Redo",
|
|
"CtrlC": "Copy",
|
|
"CtrlX": "Cut",
|
|
"CtrlK": "CutLine",
|
|
"CtrlD": "DuplicateLine",
|
|
"CtrlV": "Paste",
|
|
"CtrlA": "SelectAll",
|
|
"CtrlT": "AddTab",
|
|
"CtrlRightSq": "PreviousTab",
|
|
"CtrlBackslash": "NextTab",
|
|
"Home": "StartOfLine",
|
|
"End": "EndOfLine",
|
|
"CtrlHome": "CursorStart",
|
|
"CtrlEnd": "CursorEnd",
|
|
"PageUp": "CursorPageUp",
|
|
"PageDown": "CursorPageDown",
|
|
"CtrlG": "ToggleHelp",
|
|
"CtrlR": "ToggleRuler",
|
|
"CtrlL": "JumpLine",
|
|
"Delete": "Delete",
|
|
"Esc": "ClearStatus",
|
|
"CtrlB": "ShellMode",
|
|
"CtrlQ": "Quit",
|
|
"CtrlE": "CommandMode",
|
|
"CtrlW": "NextSplit",
|
|
|
|
// Emacs-style keybindings
|
|
"Alt-f": "WordRight",
|
|
"Alt-b": "WordLeft",
|
|
"Alt-a": "StartOfLine",
|
|
"Alt-e": "EndOfLine",
|
|
"Alt-p": "CursorUp",
|
|
"Alt-n": "CursorDown",
|
|
}
|
|
}
|