1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/string_split.h" 6 7 #include "base/string_util.h" 8 9 namespace base { 10 11 bool SplitStringIntoKeyValues( 12 const std::string& line, 13 char key_value_delimiter, 14 std::string* key, std::vector<std::string>* values) { 15 key->clear(); 16 values->clear(); 17 18 // find the key string 19 size_t end_key_pos = line.find_first_of(key_value_delimiter); 20 if (end_key_pos == std::string::npos) { 21 DLOG(INFO) << "cannot parse key from line: " << line; 22 return false; // no key 23 } 24 key->assign(line, 0, end_key_pos); 25 26 // find the values string 27 std::string remains(line, end_key_pos, line.size() - end_key_pos); 28 size_t begin_values_pos = remains.find_first_not_of(key_value_delimiter); 29 if (begin_values_pos == std::string::npos) { 30 DLOG(INFO) << "cannot parse value from line: " << line; 31 return false; // no value 32 } 33 std::string values_string(remains, begin_values_pos, 34 remains.size() - begin_values_pos); 35 36 // construct the values vector 37 values->push_back(values_string); 38 return true; 39 } 40 41 bool SplitStringIntoKeyValuePairs( 42 const std::string& line, 43 char key_value_delimiter, 44 char key_value_pair_delimiter, 45 std::vector<std::pair<std::string, std::string> >* kv_pairs) { 46 kv_pairs->clear(); 47 48 std::vector<std::string> pairs; 49 SplitString(line, key_value_pair_delimiter, &pairs); 50 51 bool success = true; 52 for (size_t i = 0; i < pairs.size(); ++i) { 53 std::string key; 54 std::vector<std::string> value; 55 if (!SplitStringIntoKeyValues(pairs[i], 56 key_value_delimiter, 57 &key, &value)) { 58 // Don't return here, to allow for keys without associated 59 // values; just record that our split failed. 60 success = false; 61 } 62 DCHECK_LE(value.size(), 1U); 63 kv_pairs->push_back(make_pair(key, value.empty()? "" : value[0])); 64 } 65 return success; 66 } 67 68 } // namespace base 69
