/**
 * Parse space separated tokens to an array of strings.
 *
 * @param {string} value Space separated tokens
 * @returns {Array.<string>} Tokens
 */
export function parse(value) {
  const input = String(value || '').trim()
  return input ? input.split(/[ \t\n\r\f]+/g) : []
}

/**
 * Serialize an array of strings as space separated tokens.
 *
 * @param {Array.<string|number>} values Tokens
 * @returns {string} Space separated tokens
 */
export function stringify(values) {
  return values.join(' ').trim()
}