| // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/string_split.h" |
| |
| #include "base/string_util.h" |
| |
| namespace base { |
| |
| bool SplitStringIntoKeyValues( |
| const std::string& line, |
| char key_value_delimiter, |
| std::string* key, std::vector<std::string>* values) { |
| key->clear(); |
| values->clear(); |
| |
| // Find the key string. |
| size_t end_key_pos = line.find_first_of(key_value_delimiter); |
| if (end_key_pos == std::string::npos) { |
| DLOG(INFO) << "cannot parse key from line: " << line; |
| return false; // no key |
| } |
| key->assign(line, 0, end_key_pos); |
| |
| // Find the values string. |
| std::string remains(line, end_key_pos, line.size() - end_key_pos); |
| size_t begin_values_pos = remains.find_first_not_of(key_value_delimiter); |
| if (begin_values_pos == std::string::npos) { |
| DLOG(INFO) << "cannot parse value from line: " << line; |
| return false; // no value |
| } |
| std::string values_string(remains, begin_values_pos, |
| remains.size() - begin_values_pos); |
| |
| // Construct the values vector. |
| values->push_back(values_string); |
| return true; |
| } |
| |
| bool SplitStringIntoKeyValuePairs( |
| const std::string& line, |
| char key_value_delimiter, |
| char key_value_pair_delimiter, |
| std::vector<std::pair<std::string, std::string> >* kv_pairs) { |
| kv_pairs->clear(); |
| |
| std::vector<std::string> pairs; |
| SplitString(line, key_value_pair_delimiter, &pairs); |
| |
| bool success = true; |
| for (size_t i = 0; i < pairs.size(); ++i) { |
| // Empty pair. SplitStringIntoKeyValues is more strict about an empty pair |
| // line, so continue with the next pair. |
| if (pairs[i].empty()) |
| continue; |
| |
| std::string key; |
| std::vector<std::string> value; |
| if (!SplitStringIntoKeyValues(pairs[i], |
| key_value_delimiter, |
| &key, &value)) { |
| // Don't return here, to allow for keys without associated |
| // values; just record that our split failed. |
| success = false; |
| } |
| DCHECK_LE(value.size(), 1U); |
| kv_pairs->push_back(make_pair(key, value.empty()? "" : value[0])); |
| } |
| return success; |
| } |
| |
| } // namespace base |