Function serializeDisplayString

http/unstable_structured_fields.ts:1377–1399

(value: string)

}

function serializeDisplayString(value: string): string {
  const bytes = UTF8_ENCODER.encode(value);

  let result = '%"';
  for (const byte of bytes) {
    if (byte === 0x25) {
      // % -> %25
      result += "%25";
    } else if (byte === 0x22) {
      // " -> %22
      result += "%22";
    } else if (byte >= 0x20 && byte <= 0x7e) {
      // Printable ASCII
      result += String.fromCharCode(byte);
    } else {
      // Percent-encode non-ASCII
      result += "%" + byte.toString(16).padStart(2, "0");
    }
  }
  result += '"';

  return result;
}

function serializeParameters(parameters: Parameters): string {
  let result = "";