Function paramParser

packages/common/http/src/params.ts:78–97

(rawParams: string, codec: HttpParameterCodec)

}

function paramParser(rawParams: string, codec: HttpParameterCodec): Map<string, string[]> {
  const map = new Map<string, string[]>();
  if (rawParams.length > 0) {
    // The `window.location.search` can be used while creating an instance of the `HttpParams` class
    // (e.g. `new HttpParams({ fromString: window.location.search })`). The `window.location.search`
    // may start with the `?` char, so we strip it if it's present.
    const params: string[] = rawParams.replace(/^\?/, '').split('&');
    params.forEach((param: string) => {
      const eqIdx = param.indexOf('=');
      const [key, val]: string[] =
        eqIdx == -1
          ? [codec.decodeKey(param), '']
          : [codec.decodeKey(param.slice(0, eqIdx)), codec.decodeValue(param.slice(eqIdx + 1))];
      const list = map.get(key) || [];
      list.push(val);
      map.set(key, list);
    });
  }
  return map;
}

/**
 * Encode input string with standard encodeURIComponent and then un-encode specific characters.