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116 lines
3.3 KiB
C++
116 lines
3.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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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 2008 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)
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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/throw_exception.hpp>
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#include <boost/current_function.hpp>
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#include <boost/exception/exception.hpp>
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#include <boost/exception/info.hpp>
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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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, boost::exception
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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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/// \param str The message string of this regex_error.
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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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, boost::exception()
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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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/// Destructor for class regex_error
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/// \throw nothrow
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virtual ~regex_error() throw()
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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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inline bool ensure_(
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bool cond
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, regex_constants::error_type code
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, char const *msg
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, char const *fun
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, char const *file
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, unsigned long line
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)
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{
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if(!cond)
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{
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#ifndef BOOST_EXCEPTION_DISABLE
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boost::throw_exception(
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boost::xpressive::regex_error(code, msg)
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<< boost::throw_function(fun)
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<< boost::throw_file(file)
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<< boost::throw_line((int)line)
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);
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#else
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boost::throw_exception(boost::xpressive::regex_error(code, msg));
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#endif
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}
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return true;
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}
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}
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#define BOOST_XPR_ENSURE_(pred, code, msg) \
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boost::xpressive::detail::ensure_(!!(pred), code, msg, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__) \
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/**/
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}} // namespace boost::xpressive
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#endif
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