Function unquoteArgument

http/unstable_cache_control.ts:158–164

Resolve a directive argument that may be either a token or a quoted-string * (RFC 9111 §5.2). When the value is a quoted-string, surrounding double * quotes are stripped and quoted-pair sequences (`\\X`) are unescaped per * RFC 9110 §5.6.4.

(value: string)

 * quotes are stripped and quoted-pair sequences (`\\X`) are unescaped per
 * RFC 9110 §5.6.4. */
function unquoteArgument(value: string): string {
  const t = value.trim();
  if (t.length >= 2 && t.startsWith('"') && t.endsWith('"')) {
    return t.slice(1, -1).replace(/\\(.)/g, "$1");
  }
  return t;
}

function parseNonNegativeInt(value: string, directive: string): number {
  const trimmed = unquoteArgument(value);