| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright (C) 2011 Google Inc. | |
| 2 // | |
| 3 // Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 // you may not use this file except in compliance with the License. | |
| 5 // You may obtain a copy of the License at | |
| 6 // | |
| 7 // http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 // | |
| 9 // Unless required by applicable law or agreed to in writing, software | |
| 10 // distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 // See the License for the specific language governing permissions and | |
| 13 // limitations under the License. | |
| 14 | |
| 15 // Author: Fredrik Roubert | |
| 16 | |
| 17 // RegExpCache is a simple wrapper around hash_map<> to store RegExp objects. | |
| 18 // | |
| 19 // To get a cached RegExp object for a regexp pattern string, call the | |
| 20 // GetRegExp() method of the class RegExpCache providing the pattern string. If | |
| 21 // a RegExp object corresponding to the pattern string doesn't already exist, it | |
| 22 // will be created by the GetRegExp() method. | |
| 23 // | |
| 24 // RegExpCache cache; | |
| 25 // const RegExp& regexp = cache.GetRegExp("\d"); | |
| 26 | |
| 27 #ifndef I18N_PHONENUMBERS_REGEXP_CACHE_H_ | |
| 28 #define I18N_PHONENUMBERS_REGEXP_CACHE_H_ | |
| 29 | |
| 30 #include <cstddef> | |
| 31 #include <string> | |
| 32 | |
| 33 #include "base/basictypes.h" | |
| 34 #include "base/memory/scoped_ptr.h" | |
| 35 #include "base/synchronization/lock.h" | |
| 36 | |
| 37 #ifdef USE_TR1_UNORDERED_MAP | |
| 38 # include <tr1/unordered_map> | |
| 39 #elif defined(USE_HASH_MAP) | |
| 40 # include "base/hash_tables.h" | |
| 41 #else | |
| 42 # error STL map type unsupported on this platform! | |
| 43 #endif | |
| 44 | |
| 45 namespace i18n { | |
| 46 namespace phonenumbers { | |
| 47 | |
| 48 using std::string; | |
| 49 | |
| 50 class RegExp; | |
| 51 | |
| 52 class RegExpCache { | |
| 53 private: | |
| 54 #ifdef USE_TR1_UNORDERED_MAP | |
| 55 typedef std::tr1::unordered_map<string, const RegExp*> CacheImpl; | |
| 56 #elif defined(USE_HASH_MAP) | |
| 57 typedef base::hash_map<string, const RegExp*> CacheImpl; | |
| 58 #endif | |
| 59 | |
| 60 public: | |
| 61 explicit RegExpCache(size_t min_items); | |
| 62 ~RegExpCache(); | |
| 63 | |
| 64 const RegExp& GetRegExp(const string& pattern); | |
| 65 | |
| 66 private: | |
| 67 base::Lock lock_; // protects cache_impl_ | |
| 68 scoped_ptr<CacheImpl> cache_impl_; // protected by lock_ | |
| 69 friend class RegExpCacheTest_CacheConstructor_Test; | |
| 70 DISALLOW_COPY_AND_ASSIGN(RegExpCache); | |
| 71 }; | |
| 72 | |
| 73 } // namespace phonenumbers | |
| 74 } // namespace i18n | |
| 75 | |
| 76 #endif // I18N_PHONENUMBERS_REGEXP_CACHE_H_ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 8790002:
Re-committing http://codereview.chromium.org/8736001/ originally committed revision=112305 (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/