Function parseList

http/unstable_structured_fields.ts:570–581

(input: string)

 * ```
 */
export function parseList(input: string): List {
  const state: ParserState = { input, pos: 0 };
  skipSP(state);
  const list = parseListInternal(state);
  skipSP(state);
  if (!isEof(state)) {
    throw new SyntaxError(
      `Invalid structured field: unexpected character at position ${state.pos}`,
    );
  }
  return list;
}

function parseListInternal(state: ParserState): List {
  const members: List = [];