Function foreach

3rdparty/libprocess/src/http.cpp:344–369

  candidates.push_back("*");           // Rule 2.

  foreach (const string& candidate, candidates) {
    // Is the candidate one of the accepted encodings?
    foreach (const string& encoding_, strings::tokenize(accept.get(), ",")) {
      vector<string> tokens = strings::tokenize(encoding_, ";");

      if (tokens.empty()) {
        continue;
      }

      if (strings::lower(tokens[0]) == strings::lower(candidate)) {
        // Is there a 0 q value? Ex: 'gzip;q=0.0'.
        const map<string, vector<string>> values =
          strings::pairs(encoding_, ";", "=");

        // Look for { "q": ["0"] }.
        if (values.count("q") == 0 || values.find("q")->second.size() != 1) {
          // No q value, or malformed q value.
          return true;
        }

        // Is the q value > 0?
        Try<double> value = numify<double>(values.find("q")->second[0]);
        return value.isSome() && value.get() > 0;
      }
    }
  }

  return false;
}