| // Copyright 2014 Google Inc. All rights reserved. |
| // |
| // 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. |
| |
| #include "check.h" |
| #include "re.h" |
| |
| namespace benchmark { |
| |
| Regex::Regex() : init_(false) { } |
| |
| bool Regex::Init(const std::string& spec, std::string* error) { |
| int ec = regcomp(&re_, spec.c_str(), REG_EXTENDED | REG_NOSUB); |
| if (ec != 0) { |
| if (error) { |
| size_t needed = regerror(ec, &re_, NULL, 0); |
| char* errbuf = new char[needed]; |
| regerror(ec, &re_, errbuf, needed); |
| |
| // regerror returns the number of bytes necessary to null terminate |
| // the string, so we move that when assigning to error. |
| CHECK_NE(needed, 0); |
| error->assign(errbuf, needed - 1); |
| |
| delete[] errbuf; |
| } |
| |
| return false; |
| } |
| |
| init_ = true; |
| return true; |
| } |
| |
| Regex::~Regex() { |
| if (init_) { |
| regfree(&re_); |
| } |
| } |
| |
| bool Regex::Match(const std::string& str) { |
| if (!init_) { |
| return false; |
| } |
| |
| return regexec(&re_, str.c_str(), 0, NULL, 0) == 0; |
| } |
| |
| } // end namespace benchmark |