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 #ifndef BENCHMARK_RE_H_ 16 #define BENCHMARK_RE_H_ 17 18 #if defined(HAVE_STD_REGEX) 19 #include <regex> 20 #elif defined(HAVE_GNU_POSIX_REGEX) 21 #include <gnuregex.h> 22 #elif defined(HAVE_POSIX_REGEX) 23 #include <regex.h> 24 #else 25 #error No regular expression backend was found! 26 #endif 27 #include <string> 28 29 namespace benchmark { 30 31 // A wrapper around the POSIX regular expression API that provides automatic 32 // cleanup 33 class Regex { 34 public: 35 Regex(); 36 ~Regex(); 37 38 // Compile a regular expression matcher from spec. Returns true on success. 39 // 40 // On failure (and if error is not nullptr), error is populated with a human 41 // readable error message if an error occurs. 42 bool Init(const std::string& spec, std::string* error); 43 44 // Returns whether str matches the compiled regular expression. 45 bool Match(const std::string& str); 46 private: 47 bool init_; 48 // Underlying regular expression object 49 #if defined(HAVE_STD_REGEX) 50 std::regex re_; 51 #elif defined(HAVE_POSIX_REGEX) || defined(HAVE_GNU_POSIX_REGEX) 52 regex_t re_; 53 #else 54 # error No regular expression backend implementation available 55 #endif 56 }; 57 58 } // end namespace benchmark 59 60 #endif // BENCHMARK_RE_H_ 61
