1 files changed, 60 insertions, 0 deletions
diff --git a/third_party/libphonenumber/cpp/src/regexp_cache.cc b/third_party/libphonenumber/cpp/src/regexp_cache.cc
new file mode 100644
index 0000000..f9d6ddf
--- /dev/null
+++ b/third_party/libphonenumber/cpp/src/regexp_cache.cc
@@ -0,0 +1,60 @@
+// Copyright (C) 2011 Google Inc.
+//
+// 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.
+
+// Author: Fredrik Roubert
+
+#include "regexp_cache.h"
+
+#include <cstddef>
+#include <string>
+#include <utility>
+
+#include "base/logging.h"
+#include "base/synchronization/lock.h"
+#include "regexp_adapter.h"
+
+using std::string;
+
+namespace i18n {
+namespace phonenumbers {
+
+using base::AutoLock;
+
+RegExpCache::RegExpCache(size_t min_items)
+#ifdef USE_TR1_UNORDERED_MAP
+    : cache_impl_(new CacheImpl(min_items)) {}
+#else  // USE_TR1_UNORDERED_MAP
+    : cache_impl_(new CacheImpl()) {}
+#endif  // USE_TR1_UNORDERED_MAP
+
+RegExpCache::~RegExpCache() {
+  AutoLock l(lock_);
+  for (CacheImpl::const_iterator
+       it = cache_impl_->begin(); it != cache_impl_->end(); ++it) {
+    delete it->second;
+  }
+}
+
+const RegExp& RegExpCache::GetRegExp(const string& pattern) {
+  AutoLock l(lock_);
+  CacheImpl::const_iterator it = cache_impl_->find(pattern);
+  if (it != cache_impl_->end()) return *it->second;
+
+  const RegExp* regexp = RegExp::Create(pattern);
+  cache_impl_->insert(make_pair(pattern, regexp));
+  return *regexp;
+}
+
+}  // namespace phonenumbers
+}  // namespace i18n