1 // Copyright 2014 The Kyua Authors. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above copyright 11 // notice, this list of conditions and the following disclaimer in the 12 // documentation and/or other materials provided with the distribution. 13 // * Neither the name of Google Inc. nor the names of its contributors 14 // may be used to endorse or promote products derived from this software 15 // without specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 /// \file utils/text/regex.hpp 30 /// Utilities to build and match regular expressions. 31 32 #if !defined(UTILS_TEXT_REGEX_HPP) 33 #define UTILS_TEXT_REGEX_HPP 34 35 #include "utils/text/regex_fwd.hpp" 36 37 #include <cstddef> 38 #include <memory> 39 40 41 namespace utils { 42 namespace text { 43 44 45 /// Container for regex match results. 46 class regex_matches { 47 struct impl; 48 49 /// Pointer to shared implementation. 50 std::shared_ptr< impl > _pimpl; 51 52 friend class regex; 53 regex_matches(std::shared_ptr< impl >); 54 55 public: 56 ~regex_matches(void); 57 58 std::size_t count(void) const; 59 std::string get(const std::size_t) const; 60 61 operator bool(void) const; 62 }; 63 64 65 /// Regular expression compiler and executor. 66 /// 67 /// All regular expressions handled by this class are "extended". 68 class regex { 69 struct impl; 70 71 /// Pointer to shared implementation. 72 std::shared_ptr< impl > _pimpl; 73 74 regex(std::shared_ptr< impl >); 75 76 public: 77 ~regex(void); 78 79 static regex compile(const std::string&, const std::size_t, 80 const bool = false); 81 regex_matches match(const std::string&) const; 82 }; 83 84 85 regex_matches match_regex(const std::string&, const std::string&, 86 const std::size_t, const bool = false); 87 88 89 } // namespace text 90 } // namespace utils 91 92 #endif // !defined(UTILS_TEXT_REGEX_HPP) 93