libstdc++
regex_error.h
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00001 // class template regex -*- C++ -*-
00002 
00003 // Copyright (C) 2010-2013 Free Software Foundation, Inc.
00004 //
00005 // This file is part of the GNU ISO C++ Library.  This library is free
00006 // software; you can redistribute it and/or modify it under the
00007 // terms of the GNU General Public License as published by the
00008 // Free Software Foundation; either version 3, or (at your option)
00009 // any later version.
00010 
00011 // This library is distributed in the hope that it will be useful,
00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 // GNU General Public License for more details.
00015 
00016 // Under Section 7 of GPL version 3, you are granted additional
00017 // permissions described in the GCC Runtime Library Exception, version
00018 // 3.1, as published by the Free Software Foundation.
00019 
00020 // You should have received a copy of the GNU General Public License and
00021 // a copy of the GCC Runtime Library Exception along with this program;
00022 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
00023 // <http://www.gnu.org/licenses/>.
00024 
00025 /**
00026  * @file bits/regex_error.h
00027  * @brief Error and exception objects for the std regex library.
00028  *
00029  *  This is an internal header file, included by other library headers.
00030  *  Do not attempt to use it directly. @headername{regex}
00031  */
00032 
00033 namespace std _GLIBCXX_VISIBILITY(default)
00034 {
00035 /**
00036  * @addtogroup regex
00037  * @{
00038  */
00039 
00040 namespace regex_constants
00041 {
00042 _GLIBCXX_BEGIN_NAMESPACE_VERSION
00043 
00044   /**
00045    * @name 5.3 Error Types
00046    */
00047   //@{
00048  
00049   enum error_type
00050     {
00051       _S_error_collate,
00052       _S_error_ctype,
00053       _S_error_escape,
00054       _S_error_backref,
00055       _S_error_brack,
00056       _S_error_paren,
00057       _S_error_brace,
00058       _S_error_badbrace,
00059       _S_error_range,
00060       _S_error_space,
00061       _S_error_badrepeat,
00062       _S_error_complexity,
00063       _S_error_stack,
00064       _S_error_last
00065     };
00066 
00067   /** The expression contained an invalid collating element name. */
00068   constexpr error_type error_collate(_S_error_collate);
00069 
00070   /** The expression contained an invalid character class name. */
00071   constexpr error_type error_ctype(_S_error_ctype);
00072 
00073   /**
00074    * The expression contained an invalid escaped character, or a trailing
00075    * escape.
00076    */
00077   constexpr error_type error_escape(_S_error_escape);
00078 
00079   /** The expression contained an invalid back reference. */
00080   constexpr error_type error_backref(_S_error_backref);
00081 
00082   /** The expression contained mismatched [ and ]. */
00083   constexpr error_type error_brack(_S_error_brack);
00084 
00085   /** The expression contained mismatched ( and ). */
00086   constexpr error_type error_paren(_S_error_paren);
00087 
00088   /** The expression contained mismatched { and } */
00089   constexpr error_type error_brace(_S_error_brace);
00090 
00091   /** The expression contained an invalid range in a {} expression. */
00092   constexpr error_type error_badbrace(_S_error_badbrace);
00093 
00094   /**
00095    * The expression contained an invalid character range,
00096    * such as [b-a] in most encodings.
00097    */
00098   constexpr error_type error_range(_S_error_range);
00099 
00100   /**
00101    * There was insufficient memory to convert the expression into a
00102    * finite state machine.
00103    */
00104   constexpr error_type error_space(_S_error_space);
00105 
00106   /**
00107    * One of <em>*?+{</em> was not preceded by a valid regular expression.
00108    */
00109   constexpr error_type error_badrepeat(_S_error_badrepeat);
00110 
00111   /**
00112    * The complexity of an attempted match against a regular expression
00113    * exceeded a pre-set level.
00114    */
00115   constexpr error_type error_complexity(_S_error_complexity);
00116 
00117   /**
00118    * There was insufficient memory to determine whether the
00119    * regular expression could match the specified character sequence.
00120    */
00121   constexpr error_type error_stack(_S_error_stack);
00122 
00123   //@}
00124 _GLIBCXX_END_NAMESPACE_VERSION
00125 } // namespace regex_constants
00126 
00127 _GLIBCXX_BEGIN_NAMESPACE_VERSION
00128 
00129   // [7.8] Class regex_error
00130   /**
00131    * @brief A regular expression exception class.
00132    * @ingroup exceptions
00133    *
00134    * The regular expression library throws objects of this class on error.
00135    */
00136   class regex_error : public std::runtime_error
00137   {
00138     regex_constants::error_type _M_code;
00139 
00140   public:
00141     /**
00142      * @brief Constructs a regex_error object.
00143      *
00144      * @param __ecode the regex error code.
00145      */
00146     explicit
00147     regex_error(regex_constants::error_type __ecode);
00148 
00149     virtual ~regex_error() throw();
00150 
00151     /**
00152      * @brief Gets the regex error code.
00153      *
00154      * @returns the regex error code.
00155      */
00156     regex_constants::error_type
00157     code() const
00158     { return _M_code; }
00159   };
00160 
00161   //@} // group regex
00162 
00163   void
00164   __throw_regex_error(regex_constants::error_type __ecode);
00165 
00166 _GLIBCXX_END_NAMESPACE_VERSION
00167 } // namespace std