Function parseMultipleKeypresses

src/ink/parse-keypress.ts:213–302

(
  prevState: KeyParseState,
  input: Buffer | string | null = '',
)

}

export function parseMultipleKeypresses(
  prevState: KeyParseState,
  input: Buffer | string | null = '',
): [ParsedInput[], KeyParseState] {
  const isFlush = input === null
  const inputString = isFlush ? '' : inputToString(input)

  // Get or create tokenizer
  const tokenizer = prevState._tokenizer ?? createTokenizer({ x10Mouse: true })

  // Tokenize the input
  const tokens = isFlush ? tokenizer.flush() : tokenizer.feed(inputString)

  // Convert tokens to parsed keys, handling paste mode
  const keys: ParsedInput[] = []
  let inPaste = prevState.mode === 'IN_PASTE'
  let pasteBuffer = prevState.pasteBuffer

  for (const token of tokens) {
    if (token.type === 'sequence') {
      if (token.value === PASTE_START) {
        inPaste = true
        pasteBuffer = ''
      } else if (token.value === PASTE_END) {
        // Always emit a paste key, even for empty pastes. This allows
        // downstream handlers to detect empty pastes (e.g., for clipboard
        // image handling on macOS). The paste content may be empty string.
        keys.push(createPasteKey(pasteBuffer))
        inPaste = false
        pasteBuffer = ''
      } else if (inPaste) {
        // Sequences inside paste are treated as literal text
        pasteBuffer += token.value
      } else {
        const response = parseTerminalResponse(token.value)
        if (response) {
          keys.push({ kind: 'response', sequence: token.value, response })
        } else {
          const mouse = parseMouseEvent(token.value)
          if (mouse) {
            keys.push(mouse)
          } else {
            keys.push(parseKeypress(token.value))
          }
        }
      }
    } else if (token.type === 'text') {
      if (inPaste) {
        pasteBuffer += token.value
      } else if (
        /^\[<\d+;\d+;\d+[Mm]$/.test(token.value) ||
        /^\[M[\x60-\x7f][\x20-\uffff]{2}$/.test(token.value)
      ) {
        // Orphaned SGR/X10 mouse tail (fullscreen only — mouse tracking is off
        // otherwise). A heavy render blocked the event loop past App's 50ms
        // flush timer, so the buffered ESC was flushed as a lone Escape and
        // the continuation `[<btn;col;rowM` arrived as text. Re-synthesize
        // with the ESC prefix so the scroll event still fires instead of