Function serializeToken

http/unstable_structured_fields.ts:1338–1356

(value: string)

}

function serializeToken(value: string): string {
  if (value.length === 0) {
    throw new TypeError("Token cannot be empty");
  }

  const first = value[0]!;
  if (!isAlpha(first) && first !== "*") {
    throw new TypeError("Token must start with ALPHA or '*'");
  }

  for (let i = 1; i < value.length; i++) {
    const c = value[i]!;
    if (!isTchar(c) && c !== ":" && c !== "/") {
      throw new TypeError(`Invalid character in token at position ${i}`);
    }
  }

  return value;
}

function serializeBinary(value: Uint8Array): string {
  return `:${encodeBase64(value)}:`;