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 41namespace utils { 42namespace text { 43 44 45/// Container for regex match results. 46class 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 55public: 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". 68class regex { 69 struct impl; 70 71 /// Pointer to shared implementation. 72 std::shared_ptr< impl > _pimpl; 73 74 regex(std::shared_ptr< impl >); 75 76public: 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 85regex_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