Function validateKeystroke

src/keybindings/validate.ts:91–125

* Validate a single keystroke string and return any parse errors.

(keystroke: string)

 * Validate a single keystroke string and return any parse errors.
 */
function validateKeystroke(keystroke: string): KeybindingWarning | null {
  const parts = keystroke.toLowerCase().split('+')

  for (const part of parts) {
    const trimmed = part.trim()
    if (!trimmed) {
      return {
        type: 'parse_error',
        severity: 'error',
        message: `Empty key part in "${keystroke}"`,
        key: keystroke,
        suggestion: 'Remove extra "+" characters',
      }
    }
  }

  // Try to parse and see if it fails
  const parsed = parseKeystroke(keystroke)
  if (
    !parsed.key &&
    !parsed.ctrl &&
    !parsed.alt &&
    !parsed.shift &&
    !parsed.meta
  ) {
    return {
      type: 'parse_error',
      severity: 'error',
      message: `Could not parse keystroke "${keystroke}"`,
      key: keystroke,
    }
  }

  return null
}

/**
 * Validate a keybinding block from user config.