Function SplitStringIntoKeyValues

be/src/gutil/strings/split.cc:961–998

---------------------------------------------------------------------- SplitStringIntoKeyValues() ----------------------------------------------------------------------

// SplitStringIntoKeyValues()
// ----------------------------------------------------------------------
bool SplitStringIntoKeyValues(const string& line,
                              const string& key_value_delimiters,
                              const string& value_value_delimiters,
                              string *key, vector<string> *values) {
  key->clear();
  values->clear();

  // find the key string
  size_t end_key_pos = line.find_first_of(key_value_delimiters);
  if (end_key_pos == string::npos) {
    VLOG(1) << "cannot parse key from line: " << line;
    return false;    // no key
  }
  key->assign(line, 0, end_key_pos);

  // find the values string
  string remains(line, end_key_pos, line.size() - end_key_pos);
  size_t begin_values_pos = remains.find_first_not_of(key_value_delimiters);
  if (begin_values_pos == string::npos) {
    VLOG(1) << "cannot parse value from line: " << line;
    return false;   // no value
  }
  string values_string(remains,
                       begin_values_pos,
                       remains.size() - begin_values_pos);

  // construct the values vector
  if (value_value_delimiters.empty()) {  // one value
    values->push_back(values_string);
  } else {                               // multiple values
    SplitStringUsing(values_string, value_value_delimiters.c_str(), values);
    if (values->size() < 1) {
      VLOG(1) << "cannot parse value from line: " << line;
      return false;  // no value
    }
  }
  return true;
}

bool SplitStringIntoKeyValuePairs(const string& line,
                                  const string& key_value_delimiters,