Function isKnownKey

packages/hotkeys/src/validate.ts:98–123

* Checks if a key is in the known keys set.

(key: string)

 * Checks if a key is in the known keys set.
 */
function isKnownKey(key: string): boolean {
  // Check direct match
  if (ALL_KEYS.has(key as any)) {
    return true
  }

  // Check uppercase version for letters
  if (key.length === 1 && ALL_KEYS.has(key.toUpperCase() as any)) {
    return true
  }

  // Check common aliases
  const aliases: Record<string, boolean> = {
    Esc: true,
    Return: true,
    Space: true,
    ' ': true,
    Del: true,
    Up: true,
    Down: true,
    Left: true,
    Right: true,
  }

  return key in aliases
}

/**
 * Validates a hotkey and throws an error if invalid.