Function isValidHTTPToken

lib/core/util.js:752–762

* @param {string} characters * @returns {boolean}

(characters)

 * @returns {boolean}
 */
function isValidHTTPToken (characters) {
  if (characters.length >= 12) return tokenRegExp.test(characters)
  if (characters.length === 0) return false

  for (let i = 0; i < characters.length; i++) {
    if (validTokenChars[characters.charCodeAt(i)] !== 1) {
      return false
    }
  }
  return true
}

// headerCharRegex have been lifted from
// https://github.com/nodejs/node/blob/main/lib/_http_common.js