Function parseKeypress

src/ink/parse-keypress.ts:611–785

(s: string = '')

}

function parseKeypress(s: string = ''): ParsedKey {
  let parts

  const key: ParsedKey = {
    kind: 'key',
    name: '',
    fn: false,
    ctrl: false,
    meta: false,
    shift: false,
    option: false,
    super: false,
    sequence: s,
    raw: s,
    isPasted: false,
  }

  key.sequence = key.sequence || s || key.name

  // Handle CSI u (kitty keyboard protocol): ESC [ codepoint [; modifier] u
  // Example: ESC[13;2u = Shift+Enter, ESC[27u = Escape (no modifiers)
  let match: RegExpExecArray | null
  if ((match = CSI_U_RE.exec(s))) {
    const codepoint = parseInt(match[1]!, 10)
    // Modifier defaults to 1 (no modifiers) when not present
    const modifier = match[2] ? parseInt(match[2], 10) : 1
    const mods = decodeModifier(modifier)
    const name = keycodeToName(codepoint)
    return {
      kind: 'key',
      name,
      fn: false,
      ctrl: mods.ctrl,
      meta: mods.meta,
      shift: mods.shift,
      option: false,
      super: mods.super,
      sequence: s,
      raw: s,
      isPasted: false,
    }
  }

  // Handle xterm modifyOtherKeys: ESC [ 27 ; modifier ; keycode ~
  // Must run before FN_KEY_RE — FN_KEY_RE only allows 2 params before ~ and
  // would leave the tail as garbage if it partially matched.
  if ((match = MODIFY_OTHER_KEYS_RE.exec(s))) {
    const mods = decodeModifier(parseInt(match[1]!, 10))
    const name = keycodeToName(parseInt(match[2]!, 10))
    return {
      kind: 'key',
      name,
      fn: false,
      ctrl: mods.ctrl,
      meta: mods.meta,
      shift: mods.shift,
      option: false,
      super: mods.super,