113 lines
3.8 KiB
C++
113 lines
3.8 KiB
C++
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/*=============================================================================
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Copyright (c) 2002-2003 Hartmut Kaiser
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http://spirit.sourceforge.net/
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef BOOST_SPIRIT_REGEX_HPP
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#define BOOST_SPIRIT_REGEX_HPP
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#include <boost/version.hpp>
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///////////////////////////////////////////////////////////////////////////////
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//
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// Include the regular expression library of boost (Boost.Regex)
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//
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// Note though, that this library is not distributed with Spirit. You have to
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// obtain a separate copy from http://www.boost.org.
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//
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///////////////////////////////////////////////////////////////////////////////
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#if defined(BOOST_SPIRIT_NO_REGEX_LIB) && BOOST_VERSION < 103300
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//
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// Include all the Boost.regex library. Please note that this will not work,
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// if you are using the boost/spirit/regex.hpp header from more than one
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// translation units.
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//
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#define BOOST_REGEX_NO_LIB
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#define BOOST_REGEX_STATIC_LINK
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#define BOOST_REGEX_NO_EXTERNAL_TEMPLATES
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#include <boost/regex.hpp>
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#include <boost/regex/src.cpp>
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#else
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//
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// Include the Boost.Regex headers only. Note, that you will have to link your
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// application against the Boost.Regex library as described in the related
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// documentation.
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// This is the only way for Boost newer than V1.32.0
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//
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#include <boost/regex.hpp>
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#endif // defined(BOOST_SPIRIT_NO_REGEX_LIB)
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#include <boost/static_assert.hpp>
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///////////////////////////////////////////////////////////////////////////////
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#include <boost/spirit/home/classic/namespace.hpp>
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#include <boost/spirit/home/classic/meta/as_parser.hpp>
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#include <boost/spirit/home/classic/core/parser.hpp>
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#include <boost/spirit/home/classic/utility/impl/regex.ipp>
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#include <iterator> // for std::iterator_traits
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///////////////////////////////////////////////////////////////////////////////
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namespace boost { namespace spirit {
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BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
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///////////////////////////////////////////////////////////////////////////////
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// rxstrlit class
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template <typename CharT = char>
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struct rxstrlit : public parser<rxstrlit<CharT> > {
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typedef rxstrlit self_t;
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rxstrlit(CharT const *first, CharT const *last)
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: rx(first, last) {}
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rxstrlit(CharT const *first)
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: rx(first) {}
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template <typename ScannerT>
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typename parser_result<self_t, ScannerT>::type
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parse(ScannerT const& scan) const
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{
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// Due to limitations in the boost::regex library the iterators wrapped in
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// the ScannerT object should be at least bidirectional iterators. Plain
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// forward iterators do not work here.
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typedef typename ScannerT::iterator_t iterator_t;
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typedef
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typename std::iterator_traits<iterator_t>::iterator_category
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iterator_category;
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BOOST_STATIC_ASSERT((
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boost::is_convertible<iterator_category,
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std::bidirectional_iterator_tag>::value
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));
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typedef typename parser_result<self_t, ScannerT>::type result_t;
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return impl::contiguous_parser_parse<result_t>(rx, scan, scan);
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}
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private:
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impl::rx_parser<CharT> rx; // contains the boost regular expression parser
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};
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///////////////////////////////////////////////////////////////////////////////
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// Generator functions
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template <typename CharT>
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inline rxstrlit<CharT>
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regex_p(CharT const *first)
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{ return rxstrlit<CharT>(first); }
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//////////////////////////////////
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template <typename CharT>
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inline rxstrlit<CharT>
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regex_p(CharT const *first, CharT const *last)
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{ return rxstrlit<CharT>(first, last); }
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///////////////////////////////////////////////////////////////////////////////
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BOOST_SPIRIT_CLASSIC_NAMESPACE_END
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}} // namespace BOOST_SPIRIT_CLASSIC_NS
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#endif // BOOST_SPIRIT_REGEX_HPP
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