^${kWSP}*$`);
ObjectSeal(kAllWSP);

const BufferFrom = require('buffer').Buffer.from;

// Returns {algorithm, value (in base64 string), options,}[]
const parse = (str) => {
  let prevIndex = 0;
  let match;
  const entries = [];
  while ((match = RegExpPrototypeExec(kSRIPattern, str)) !== null) {
    if (match.index !== prevIndex) {
      throw new ERR_SRI_PARSE(str, str[prevIndex], prevIndex);
    }
    if (entries.length > 0 && match[1] === '') {
      throw new ERR_SRI_PARSE(str, str[prevIndex], prevIndex);
    }

    // Avoid setters being fired
    ObjectDefineProperty(entries, entries.length, {
      __proto__: null,
      enumerable: true,
      configurable: true,
      value: ObjectFreeze({
        __proto__: null,
        algorithm: match[2],
        value: BufferFrom(match[3], 'base64'),
        options: match[4] === undefined ? null : match[4],
      }),
    });
    prevIndex += match[0].length;
  }

  if (prevIndex !== str.length) {
    if (RegExpPrototypeExec(kAllWSP, StringPrototypeSlice(str, prevIndex)) === null) {
      throw new ERR_SRI_PARSE(str, str[prevIndex], prevIndex);
    }
  }
  return ObjectSetPrototypeOf(entries, ArrayPrototype);
};

module.exports = {
  parse,
};
