Name	Size	Mode	Actions
conditions.ipp	3406	0644	editdlrm
select.ipp	4111	0644	editdlrm
switch.ipp	21156	0644	editdlrm

/*============================================================================= Copyright (c) 2003 Hartmut Kaiser http://spirit.sourceforge.net/ Use, modification and distribution is subject to the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) =============================================================================*/ #ifndef BOOST_SPIRIT_SELECT_IPP #define BOOST_SPIRIT_SELECT_IPP #include #include #include /////////////////////////////////////////////////////////////////////////////// namespace boost { namespace spirit { BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN /////////////////////////////////////////////////////////////////////////////// namespace impl { /////////////////////////////////////////////////////////////////////////////// template struct as_embedded_parser : public as_parser { typedef typename as_parser::type::derived_t::embed_t type; }; /////////////////////////////////////////////////////////////////////////////// // no implementation here to catch unknown BehaviourT template arguments template struct select_match_gen; // implementation for the select_default_no_fail behaviour template struct select_match_gen { template static ResultT do_ (ScannerT const &scan) { return scan.create_match(0, -1, scan.first, scan.first); } }; // implementation for the select_default_fail behaviour template struct select_match_gen { template static ResultT do_ (ScannerT const &scan) { return scan.no_match(); } }; /////////////////////////////////////////////////////////////////////////////// template struct parse_tuple_element { BOOST_STATIC_CONSTANT(int, index = (TupleT::length - N)); template static ResultT do_(TupleT const &t, ScannerT const &scan) { typedef typename ::phoenix::tuple_element::type parser_t; typedef typename ScannerT::iterator_t iterator_t; typedef typename parser_result::type result_t; iterator_t save(scan.first); result_t result(t[::phoenix::tuple_index()].parse(scan)); if (result) { return scan.create_match(result.length(), TupleT::length - N, save, scan.first); } scan.first = save; // reset the input stream return parse_tuple_element:: do_(t, scan); } }; template struct parse_tuple_element<1, ResultT, TupleT, BehaviourT> { BOOST_STATIC_CONSTANT(int, index = (TupleT::length - 1)); template static ResultT do_(TupleT const &t, ScannerT const &scan) { typedef typename ::phoenix::tuple_element::type parser_t; typedef typename ScannerT::iterator_t iterator_t; typedef typename parser_result::type result_t; iterator_t save(scan.first); result_t result(t[::phoenix::tuple_index()].parse(scan)); if (result) { return scan.create_match(result.length(), TupleT::length - 1, save, scan.first); } scan.first = save; // reset the input stream return select_match_gen::do_(scan); } }; /////////////////////////////////////////////////////////////////////////////// } // namespace impl BOOST_SPIRIT_CLASSIC_NAMESPACE_END }} // namespace boost::spirit #endif // BOOST_SPIRIT_SELECT_IPP