/*=============================================================================
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Copyright (c) 2002-2003 Hartmut Kaiser
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http://spirit.sourceforge.net/
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Use, modification and distribution is subject to the Boost Software
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License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef BOOST_SPIRIT_REGEX_IPP
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#define BOOST_SPIRIT_REGEX_IPP
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///////////////////////////////////////////////////////////////////////////////
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#include <boost/spirit/home/classic/core/primitives/impl/primitives.ipp>
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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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namespace impl {
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///////////////////////////////////////////////////////////////////////////////
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//
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inline const char* rx_prefix(char) { return "\\A"; }
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inline const wchar_t* rx_prefix(wchar_t) { return L"\\A"; }
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///////////////////////////////////////////////////////////////////////////////
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//
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// rx_parser class
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//
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///////////////////////////////////////////////////////////////////////////////
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template <typename CharT = char>
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class rx_parser : public parser<rx_parser<CharT> > {
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public:
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typedef std::basic_string<CharT> string_t;
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typedef rx_parser<CharT> self_t;
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rx_parser(CharT const *first, CharT const *last)
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{
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rxstr = string_t(rx_prefix(CharT())) + string_t(first, last);
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}
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rx_parser(CharT const *first)
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{
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rxstr = string_t(rx_prefix(CharT())) +
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string_t(first, impl::get_last(first));
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}
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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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boost::match_results<typename ScannerT::iterator_t> what;
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boost::regex_search(scan.first, scan.last, what, rxstr,
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boost::match_default);
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if (!what[0].matched)
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return scan.no_match();
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scan.first = what[0].second;
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return scan.create_match(what[0].length(), nil_t(),
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what[0].first, scan.first);
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}
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private:
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#if BOOST_VERSION >= 013300
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boost::basic_regex<CharT> rxstr; // regular expression to match
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#else
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boost::reg_expression<CharT> rxstr; // regular expression to match
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#endif
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};
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} // namespace impl
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///////////////////////////////////////////////////////////////////////////////
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BOOST_SPIRIT_CLASSIC_NAMESPACE_END
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}} // namespace boost::spirit
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#endif // BOOST_SPIRIT_REGEX_IPP
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