1 // class template regex -*- C++ -*- 2 3 // Copyright (C) 2010, 2011 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the 7 // terms of the GNU General Public License as published by the 8 // Free Software Foundation; either version 3, or (at your option) 9 // any later version. 10 11 // This library is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 16 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 /** 26 * @file bits/regex_error.h 27 * @brief Error and exception objects for the std regex library. 28 * 29 * This is an internal header file, included by other library headers. 30 * Do not attempt to use it directly. @headername{regex} 31 */ 32 33 namespace std _GLIBCXX_VISIBILITY(default) 34 { 35 namespace regex_constants 36 { 37 _GLIBCXX_BEGIN_NAMESPACE_VERSION 38 39 /** 40 * @name 5.3 Error Types 41 */ 42 //@{ 43 44 enum error_type 45 { 46 _S_error_collate, 47 _S_error_ctype, 48 _S_error_escape, 49 _S_error_backref, 50 _S_error_brack, 51 _S_error_paren, 52 _S_error_brace, 53 _S_error_badbrace, 54 _S_error_range, 55 _S_error_space, 56 _S_error_badrepeat, 57 _S_error_complexity, 58 _S_error_stack, 59 _S_error_last 60 }; 61 62 /** The expression contained an invalid collating element name. */ 63 static constexpr error_type error_collate(_S_error_collate); 64 65 /** The expression contained an invalid character class name. */ 66 static constexpr error_type error_ctype(_S_error_ctype); 67 68 /** 69 * The expression contained an invalid escaped character, or a trailing 70 * escape. 71 */ 72 static constexpr error_type error_escape(_S_error_escape); 73 74 /** The expression contained an invalid back reference. */ 75 static constexpr error_type error_backref(_S_error_backref); 76 77 /** The expression contained mismatched [ and ]. */ 78 static constexpr error_type error_brack(_S_error_brack); 79 80 /** The expression contained mismatched ( and ). */ 81 static constexpr error_type error_paren(_S_error_paren); 82 83 /** The expression contained mismatched { and } */ 84 static constexpr error_type error_brace(_S_error_brace); 85 86 /** The expression contained an invalid range in a {} expression. */ 87 static constexpr error_type error_badbrace(_S_error_badbrace); 88 89 /** 90 * The expression contained an invalid character range, 91 * such as [b-a] in most encodings. 92 */ 93 static constexpr error_type error_range(_S_error_range); 94 95 /** 96 * There was insufficient memory to convert the expression into a 97 * finite state machine. 98 */ 99 static constexpr error_type error_space(_S_error_space); 100 101 /** 102 * One of <em>*?+{</em> was not preceded by a valid regular expression. 103 */ 104 static constexpr error_type error_badrepeat(_S_error_badrepeat); 105 106 /** 107 * The complexity of an attempted match against a regular expression 108 * exceeded a pre-set level. 109 */ 110 static constexpr error_type error_complexity(_S_error_complexity); 111 112 /** 113 * There was insufficient memory to determine whether the 114 * regular expression could match the specified character sequence. 115 */ 116 static constexpr error_type error_stack(_S_error_stack); 117 118 //@} 119 _GLIBCXX_END_NAMESPACE_VERSION 120 } // namespace regex_constants 121 122 _GLIBCXX_BEGIN_NAMESPACE_VERSION 123 124 // [7.8] Class regex_error 125 /** 126 * @brief A regular expression exception class. 127 * @ingroup exceptions 128 * 129 * The regular expression library throws objects of this class on error. 130 */ 131 class regex_error : public std::runtime_error 132 { 133 regex_constants::error_type _M_code; 134 135 public: 136 /** 137 * @brief Constructs a regex_error object. 138 * 139 * @param __ecode the regex error code. 140 */ 141 explicit 142 regex_error(regex_constants::error_type __ecode); 143 144 virtual ~regex_error() throw(); 145 146 /** 147 * @brief Gets the regex error code. 148 * 149 * @returns the regex error code. 150 */ 151 regex_constants::error_type 152 code() const 153 { return _M_code; } 154 }; 155 156 157 void 158 __throw_regex_error(regex_constants::error_type __ecode); 159 160 _GLIBCXX_END_NAMESPACE_VERSION 161 } // namespace std 162