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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,186 @@ | ||
| package key | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strings" | ||
| "unicode" | ||
|
|
||
| "github.com/awesome-gocui/gocui" | ||
| ) | ||
|
|
||
| var translate = map[string]string{ | ||
| "/": "Slash", | ||
| "\\": "Backslash", | ||
| "[": "LsqBracket", | ||
| "]": "RsqBracket", | ||
| "_": "Underscore", | ||
| "escape": "Esc", | ||
| "~": "Tilde", | ||
| "pageup": "Pgup", | ||
| "pagedown": "Pgdn", | ||
| "pgup": "Pgup", | ||
| "pgdown": "Pgdn", | ||
| "up": "ArrowUp", | ||
| "down": "ArrowDown", | ||
| "right": "ArrowRight", | ||
| "left": "ArrowLeft", | ||
| "ctl": "Ctrl", | ||
| } | ||
|
|
||
| var display = map[string]string{ | ||
| "Slash": "/", | ||
| "Backslash": "\\", | ||
| "LsqBracket": "[", | ||
| "RsqBracket": "]", | ||
| "Underscore": "_", | ||
| "Tilde": "~", | ||
| "Ctrl": "^", | ||
| } | ||
|
|
||
| var supportedKeybindings = map[string]gocui.Key{ | ||
| "KeyF1": gocui.KeyF1, | ||
| "KeyF2": gocui.KeyF2, | ||
| "KeyF3": gocui.KeyF3, | ||
| "KeyF4": gocui.KeyF4, | ||
| "KeyF5": gocui.KeyF5, | ||
| "KeyF6": gocui.KeyF6, | ||
| "KeyF7": gocui.KeyF7, | ||
| "KeyF8": gocui.KeyF8, | ||
| "KeyF9": gocui.KeyF9, | ||
| "KeyF10": gocui.KeyF10, | ||
| "KeyF11": gocui.KeyF11, | ||
| "KeyF12": gocui.KeyF12, | ||
| "KeyInsert": gocui.KeyInsert, | ||
| "KeyDelete": gocui.KeyDelete, | ||
| "KeyHome": gocui.KeyHome, | ||
| "KeyEnd": gocui.KeyEnd, | ||
| "KeyPgup": gocui.KeyPgup, | ||
| "KeyPgdn": gocui.KeyPgdn, | ||
| "KeyArrowUp": gocui.KeyArrowUp, | ||
| "KeyArrowDown": gocui.KeyArrowDown, | ||
| "KeyArrowLeft": gocui.KeyArrowLeft, | ||
| "KeyArrowRight": gocui.KeyArrowRight, | ||
| "KeyCtrlTilde": gocui.KeyCtrlTilde, | ||
| "KeyCtrl2": gocui.KeyCtrl2, | ||
| "KeyCtrlSpace": gocui.KeyCtrlSpace, | ||
| "KeyCtrlA": gocui.KeyCtrlA, | ||
| "KeyCtrlB": gocui.KeyCtrlB, | ||
| "KeyCtrlC": gocui.KeyCtrlC, | ||
| "KeyCtrlD": gocui.KeyCtrlD, | ||
| "KeyCtrlE": gocui.KeyCtrlE, | ||
| "KeyCtrlF": gocui.KeyCtrlF, | ||
| "KeyCtrlG": gocui.KeyCtrlG, | ||
| "KeyBackspace": gocui.KeyBackspace, | ||
| "KeyCtrlH": gocui.KeyCtrlH, | ||
| "KeyTab": gocui.KeyTab, | ||
| "KeyCtrlI": gocui.KeyCtrlI, | ||
| "KeyCtrlJ": gocui.KeyCtrlJ, | ||
| "KeyCtrlK": gocui.KeyCtrlK, | ||
| "KeyCtrlL": gocui.KeyCtrlL, | ||
| "KeyEnter": gocui.KeyEnter, | ||
| "KeyCtrlM": gocui.KeyCtrlM, | ||
| "KeyCtrlN": gocui.KeyCtrlN, | ||
| "KeyCtrlO": gocui.KeyCtrlO, | ||
| "KeyCtrlP": gocui.KeyCtrlP, | ||
| "KeyCtrlQ": gocui.KeyCtrlQ, | ||
| "KeyCtrlR": gocui.KeyCtrlR, | ||
| "KeyCtrlS": gocui.KeyCtrlS, | ||
| "KeyCtrlT": gocui.KeyCtrlT, | ||
| "KeyCtrlU": gocui.KeyCtrlU, | ||
| "KeyCtrlV": gocui.KeyCtrlV, | ||
| "KeyCtrlW": gocui.KeyCtrlW, | ||
| "KeyCtrlX": gocui.KeyCtrlX, | ||
| "KeyCtrlY": gocui.KeyCtrlY, | ||
| "KeyCtrlZ": gocui.KeyCtrlZ, | ||
| "KeyEsc": gocui.KeyEsc, | ||
| "KeyCtrlLsqBracket": gocui.KeyCtrlLsqBracket, | ||
| "KeyCtrl3": gocui.KeyCtrl3, | ||
| "KeyCtrl4": gocui.KeyCtrl4, | ||
| "KeyCtrlBackslash": gocui.KeyCtrlBackslash, | ||
| "KeyCtrl5": gocui.KeyCtrl5, | ||
| "KeyCtrlRsqBracket": gocui.KeyCtrlRsqBracket, | ||
| "KeyCtrl6": gocui.KeyCtrl6, | ||
| "KeyCtrl7": gocui.KeyCtrl7, | ||
| "KeyCtrlSlash": gocui.KeyCtrlSlash, | ||
| "KeyCtrlUnderscore": gocui.KeyCtrlUnderscore, | ||
| "KeySpace": gocui.KeySpace, | ||
| "KeyBackspace2": gocui.KeyBackspace2, | ||
| "KeyCtrl8": gocui.KeyCtrl8, | ||
| } | ||
|
|
||
| type Key struct { | ||
| Value gocui.Key | ||
| Modifier gocui.Modifier | ||
| Tokens []string | ||
| } | ||
|
|
||
| func Parse(input string) (Key, error) { | ||
| f := func(c rune) bool { return unicode.IsSpace(c) || c == '+' } | ||
| tokens := strings.FieldsFunc(input, f) | ||
| var normalizedTokens []string | ||
| var modifier = gocui.ModNone | ||
|
|
||
| for _, token := range tokens { | ||
| normalized := strings.ToLower(token) | ||
|
|
||
| if value, exists := translate[normalized]; exists { | ||
| normalized = value | ||
| } else { | ||
| normalized = strings.Title(normalized) | ||
| } | ||
|
|
||
| if normalized == "Alt" { | ||
| modifier = gocui.ModAlt | ||
| continue | ||
| } | ||
|
|
||
| if len(normalized) == 1 { | ||
| normalizedTokens = append(normalizedTokens, strings.ToUpper(normalized)) | ||
| continue | ||
| } | ||
|
|
||
| normalizedTokens = append(normalizedTokens, normalized) | ||
| } | ||
|
|
||
| lookup := "Key" + strings.Join(normalizedTokens, "") | ||
|
|
||
| if key, exists := supportedKeybindings[lookup]; exists { | ||
| return Key{key, modifier, normalizedTokens}, nil | ||
| } | ||
|
|
||
| if modifier != gocui.ModNone { | ||
| return Key{0, modifier, normalizedTokens}, fmt.Errorf("unsupported keybinding: %s (+%+v)", lookup, modifier) | ||
| } | ||
| return Key{0, modifier, normalizedTokens}, fmt.Errorf("unsupported keybinding: %s", lookup) | ||
| } | ||
|
|
||
| func ParseAll(input string) ([]Key, error) { | ||
| ret := make([]Key, 0) | ||
| for _, value := range strings.Split(input, ",") { | ||
| key, err := Parse(value) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("could not parse keybinding '%s' from request '%s': %+v", value, input, err) | ||
| } | ||
| ret = append(ret, key) | ||
| } | ||
| if len(ret) == 0 { | ||
| return nil, fmt.Errorf("must have at least one keybinding") | ||
| } | ||
| return ret, nil | ||
| } | ||
|
|
||
| func (key Key) String() string { | ||
| displayTokens := make([]string, 0) | ||
| prefix := "" | ||
| for _, token := range key.Tokens { | ||
| if token == "Ctrl" { | ||
| prefix = "^" | ||
| continue | ||
| } | ||
| if value, exists := display[token]; exists { | ||
| token = value | ||
| } | ||
| displayTokens = append(displayTokens, token) | ||
| } | ||
| return prefix + strings.Join(displayTokens, "+") | ||
| } |
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