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      1 // Copyright 2015 Google Inc. All rights reserved.
      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 #include "re.h"
     16 
     17 namespace benchmark {
     18 
     19 Regex::Regex() : init_(false) { }
     20 
     21 bool Regex::Init(const std::string& spec, std::string* error) {
     22   try {
     23     re_ = std::regex(spec, std::regex_constants::extended);
     24 
     25     init_ = true;
     26   } catch (const std::regex_error& e) {
     27     if (error) {
     28       *error = e.what();
     29     }
     30   }
     31   return init_;
     32 }
     33 
     34 Regex::~Regex() { }
     35 
     36 bool Regex::Match(const std::string& str) {
     37   if (!init_) {
     38     return false;
     39   }
     40 
     41   return std::regex_search(str, re_);
     42 }
     43 
     44 }  // end namespace benchmark
     45