text: // Copyright 2018 Google Inc. All Rights Reserved.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS-IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  //
  
  #include "s2/strings/serialize.h"
  
  #include <string>
  #include <vector>
  
  #include "s2/third_party/absl/strings/str_split.h"
  #include "s2/third_party/absl/strings/string_view.h"
  
  using absl::StrSplit;
  using absl::string_view;
  using std::pair;
  using std::string;
  using std::vector;
  
  namespace strings {
  
  bool DictionaryParse(string_view encoded_str,
                       vector<pair<string, string>>* items) {
    if (encoded_str.empty())
      return true;
    vector<string_view> const entries = StrSplit(encoded_str, ',');
    for (int i = 0; i < entries.size(); ++i) {
      vector<string_view> const fields = StrSplit(entries[i], ':');
      if (fields.size() != 2)  // parsing error
        return false;
      items->push_back(std::make_pair(string(fields[0]), string(fields[1])));
    }
    return true;
  }
  
  }  // namespace strings
  