Function isNonSpacePrintable

src/components/PromptInput/utils.ts:39–60

(input: string, key: Key)

 * Used to gate the lazy space inserted after an image pill.
 */
export function isNonSpacePrintable(input: string, key: Key): boolean {
  if (
    key.ctrl ||
    key.meta ||
    key.escape ||
    key.return ||
    key.tab ||
    key.backspace ||
    key.delete ||
    key.upArrow ||
    key.downArrow ||
    key.leftArrow ||
    key.rightArrow ||
    key.pageUp ||
    key.pageDown ||
    key.home ||
    key.end
  ) {
    return false
  }
  return input.length > 0 && !/^\s/.test(input) && !input.startsWith('\x1b')
}