author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 02:56:42 +0300 | |
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/////////////////////////////////////////////////////////////////////////////// |
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/// \file regex_error.hpp |
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/// Contains the definition of the regex_error exception class. |
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// |
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// Copyright 2004 Eric Niebler. Distributed under the Boost |
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// Software License, Version 1.0. (See accompanying file |
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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#ifndef BOOST_XPRESSIVE_REGEX_ERROR_HPP_EAN_10_04_2005 |
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#define BOOST_XPRESSIVE_REGEX_ERROR_HPP_EAN_10_04_2005 |
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// MS compatible compilers support #pragma once |
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#if defined(_MSC_VER) && (_MSC_VER >= 1020) |
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# pragma once |
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#endif |
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#include <string> |
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#include <stdexcept> |
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#include <boost/xpressive/regex_constants.hpp> |
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//{{AFX_DOC_COMMENT |
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/////////////////////////////////////////////////////////////////////////////// |
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// This is a hack to get Doxygen to show the inheritance relation between |
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// regex_error and std::runtime_error. |
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#ifdef BOOST_XPRESSIVE_DOXYGEN_INVOKED |
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/// INTERNAL ONLY |
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namespace std |
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{ |
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/// INTERNAL ONLY |
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struct runtime_error {}; |
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} |
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#endif |
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//}}AFX_DOC_COMMENT |
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namespace boost { namespace xpressive |
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{ |
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//////////////////////////////////////////////////////////////////////////////// |
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// regex_error |
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// |
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/// \brief The class regex_error defines the type of objects thrown as |
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/// exceptions to report errors during the conversion from a string representing |
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/// a regular expression to a finite state machine. |
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struct regex_error |
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: std::runtime_error |
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{ |
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/// Constructs an object of class regex_error. |
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/// \param code The error_type this regex_error represents. |
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/// \post code() == code |
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explicit regex_error(regex_constants::error_type code, char const *str = "") |
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: std::runtime_error(str) |
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, code_(code) |
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{ |
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} |
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/// Accessor for the error_type value |
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/// \return the error_type code passed to the constructor |
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/// \throw nothrow |
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regex_constants::error_type code() const |
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{ |
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return this->code_; |
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} |
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private: |
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regex_constants::error_type code_; |
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}; |
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namespace detail |
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{ |
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////////////////////////////////////////////////////////////////////////// |
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// ensure |
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/// INTERNAL ONLY |
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inline bool ensure(bool predicate, regex_constants::error_type code, char const *str = "") |
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{ |
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return predicate ? true : throw regex_error(code, str); |
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} |
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}}} // namespace boost::xpressive::detail |
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#endif |