159 lines
4.4 KiB
C++
159 lines
4.4 KiB
C++
// class template regex -*- C++ -*-
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// Copyright (C) 2010 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/**
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* @file bits/regex_error.h
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* @brief Error and exception objects for the std regex library.
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*
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{regex}
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*/
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_GLIBCXX_BEGIN_NAMESPACE(std)
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namespace regex_constants
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{
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/**
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* @name 5.3 Error Types
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*/
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//@{
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enum error_type
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{
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_S_error_collate,
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_S_error_ctype,
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_S_error_escape,
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_S_error_backref,
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_S_error_brack,
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_S_error_paren,
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_S_error_brace,
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_S_error_badbrace,
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_S_error_range,
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_S_error_space,
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_S_error_badrepeat,
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_S_error_complexity,
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_S_error_stack,
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_S_error_last
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};
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/** The expression contained an invalid collating element name. */
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static const error_type error_collate(_S_error_collate);
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/** The expression contained an invalid character class name. */
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static const error_type error_ctype(_S_error_ctype);
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/**
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* The expression contained an invalid escaped character, or a trailing
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* escape.
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*/
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static const error_type error_escape(_S_error_escape);
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/** The expression contained an invalid back reference. */
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static const error_type error_backref(_S_error_backref);
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/** The expression contained mismatched [ and ]. */
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static const error_type error_brack(_S_error_brack);
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/** The expression contained mismatched ( and ). */
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static const error_type error_paren(_S_error_paren);
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/** The expression contained mismatched { and } */
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static const error_type error_brace(_S_error_brace);
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/** The expression contained an invalid range in a {} expression. */
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static const error_type error_badbrace(_S_error_badbrace);
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/**
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* The expression contained an invalid character range,
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* such as [b-a] in most encodings.
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*/
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static const error_type error_range(_S_error_range);
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/**
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* There was insufficient memory to convert the expression into a
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* finite state machine.
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*/
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static const error_type error_space(_S_error_space);
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/**
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* One of <em>*?+{<em> was not preceded by a valid regular expression.
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*/
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static const error_type error_badrepeat(_S_error_badrepeat);
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/**
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* The complexity of an attempted match against a regular expression
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* exceeded a pre-set level.
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*/
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static const error_type error_complexity(_S_error_complexity);
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/**
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* There was insufficient memory to determine whether the
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* regular expression could match the specified character sequence.
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*/
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static const error_type error_stack(_S_error_stack);
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//@}
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}
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// [7.8] Class regex_error
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/**
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* @brief A regular expression exception class.
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* @ingroup exceptions
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*
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* The regular expression library throws objects of this class on error.
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*/
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class regex_error
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: public std::runtime_error
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{
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public:
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/**
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* @brief Constructs a regex_error object.
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*
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* @param ecode the regex error code.
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*/
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explicit
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regex_error(regex_constants::error_type __ecode)
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: std::runtime_error("regex_error"), _M_code(__ecode)
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{ }
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/**
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* @brief Gets the regex error code.
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*
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* @returns the regex error code.
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*/
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regex_constants::error_type
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code() const
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{ return _M_code; }
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protected:
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regex_constants::error_type _M_code;
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};
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inline void
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__throw_regex_error(regex_constants::error_type __ecode)
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{ throw regex_error(__ecode); }
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_GLIBCXX_END_NAMESPACE
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