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// Copyright 2018 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package keyboard defines well known keyboard keys and shortcuts.
package keyboard
// Key represents a single button on the keyboard.
// Printable characters are set to their ASCII/Unicode rune value.
// Non-printable (control) characters are equal to one of the constants defined
// below.
type Key rune
// String implements fmt.Stringer()
func (b Key) String() string {
if n, ok := buttonNames[b]; ok {
return n
} else if b >= 0 {
return string(b)
}
return "KeyUnknown"
}
// buttonNames maps Key values to human readable names.
var buttonNames = map[Key]string{
KeyF1: "KeyF1",
KeyF2: "KeyF2",
KeyF3: "KeyF3",
KeyF4: "KeyF4",
KeyF5: "KeyF5",
KeyF6: "KeyF6",
KeyF7: "KeyF7",
KeyF8: "KeyF8",
KeyF9: "KeyF9",
KeyF10: "KeyF10",
KeyF11: "KeyF11",
KeyF12: "KeyF12",
KeyInsert: "KeyInsert",
KeyDelete: "KeyDelete",
KeyHome: "KeyHome",
KeyEnd: "KeyEnd",
KeyPgUp: "KeyPgUp",
KeyPgDn: "KeyPgDn",
KeyArrowUp: "KeyArrowUp",
KeyArrowDown: "KeyArrowDown",
KeyArrowLeft: "KeyArrowLeft",
KeyArrowRight: "KeyArrowRight",
KeyCtrlTilde: "KeyCtrlTilde",
KeyCtrlA: "KeyCtrlA",
KeyCtrlB: "KeyCtrlB",
KeyCtrlC: "KeyCtrlC",
KeyCtrlD: "KeyCtrlD",
KeyCtrlE: "KeyCtrlE",
KeyCtrlF: "KeyCtrlF",
KeyCtrlG: "KeyCtrlG",
KeyBackspace: "KeyBackspace",
KeyTab: "KeyTab",
KeyCtrlJ: "KeyCtrlJ",
KeyCtrlK: "KeyCtrlK",
KeyCtrlL: "KeyCtrlL",
KeyEnter: "KeyEnter",
KeyCtrlN: "KeyCtrlN",
KeyCtrlO: "KeyCtrlO",
KeyCtrlP: "KeyCtrlP",
KeyCtrlQ: "KeyCtrlQ",
KeyCtrlR: "KeyCtrlR",
KeyCtrlS: "KeyCtrlS",
KeyCtrlT: "KeyCtrlT",
KeyCtrlU: "KeyCtrlU",
KeyCtrlV: "KeyCtrlV",
KeyCtrlW: "KeyCtrlW",
KeyCtrlX: "KeyCtrlX",
KeyCtrlY: "KeyCtrlY",
KeyCtrlZ: "KeyCtrlZ",
KeyEsc: "KeyEsc",
KeyCtrl4: "KeyCtrl4",
KeyCtrl5: "KeyCtrl5",
KeyCtrl6: "KeyCtrl6",
KeyCtrl7: "KeyCtrl7",
KeySpace: "KeySpace",
KeyBackspace2: "KeyBackspace2",
}
// Printable characters, but worth having constants for them.
const (
KeySpace = ' '
)
// Negative values for non-printable characters.
const (
KeyF1 Key = -(iota + 1)
KeyF2
KeyF3
KeyF4
KeyF5
KeyF6
KeyF7
KeyF8
KeyF9
KeyF10
KeyF11
KeyF12
KeyInsert
KeyDelete
KeyHome
KeyEnd
KeyPgUp
KeyPgDn
KeyArrowUp
KeyArrowDown
KeyArrowLeft
KeyArrowRight
KeyCtrlTilde
KeyCtrlA
KeyCtrlB
KeyCtrlC
KeyCtrlD
KeyCtrlE
KeyCtrlF
KeyCtrlG
KeyBackspace
KeyTab
KeyCtrlJ
KeyCtrlK
KeyCtrlL
KeyEnter
KeyCtrlN
KeyCtrlO
KeyCtrlP
KeyCtrlQ
KeyCtrlR
KeyCtrlS
KeyCtrlT
KeyCtrlU
KeyCtrlV
KeyCtrlW
KeyCtrlX
KeyCtrlY
KeyCtrlZ
KeyEsc
KeyCtrl4
KeyCtrl5
KeyCtrl6
KeyCtrl7
KeyBackspace2
)
// Keys declared as duplicates by termbox.
const (
KeyCtrl2 Key = KeyCtrlTilde
KeyCtrlSpace Key = KeyCtrlTilde
KeyCtrlH Key = KeyBackspace
KeyCtrlI Key = KeyTab
KeyCtrlM Key = KeyEnter
KeyCtrlLsqBracket Key = KeyEsc
KeyCtrl3 Key = KeyEsc
KeyCtrlBackslash Key = KeyCtrl4
KeyCtrlRsqBracket Key = KeyCtrl5
KeyCtrlSlash Key = KeyCtrl7
KeyCtrlUnderscore Key = KeyCtrl7
KeyCtrl8 Key = KeyBackspace2
)
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