reverseLookup()

in source/checksum/lib/restore/index.js [103:126]

• 21 lines of code
• 5 McCabe index (conditional complexity)

  reverseLookup(s) {
    try {
      const token = s.substr(-1) === ',' ? s.slice(0, -1) : s;
      let idx = token.lastIndexOf('=');
      if (idx < 0) {
        throw new RangeError(`no more '=' token, ${token}`);
      }

      const value = token.substring(idx + 1).replace(/["']/g, '');
      let next = token.substring(0, idx);
      idx = next.lastIndexOf(' ');

      const key = next.substring(idx + 1);
      next = (idx < 0) ? undefined : token.substring(0, idx);

      return {
        key,
        value,
        next,
      };
    } catch (e) {
      return undefined;
    }
  }