Chris@102: /*=============================================================================
Chris@102:     Copyright (c) 2014 Joel de Guzman
Chris@102: 
Chris@102:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@102:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@102: =============================================================================*/
Chris@102: #if !defined(SPIRIT_X3_RAW_APRIL_9_2007_0912AM)
Chris@102: #define SPIRIT_X3_RAW_APRIL_9_2007_0912AM
Chris@102: 
Chris@102: #include <boost/spirit/home/x3/core/skip_over.hpp>
Chris@102: #include <boost/spirit/home/x3/core/parser.hpp>
Chris@102: #include <boost/spirit/home/x3/support/traits/move_to.hpp>
Chris@102: #include <boost/range/iterator_range.hpp>
Chris@102: 
Chris@102: namespace boost { namespace spirit { namespace x3
Chris@102: {
Chris@102:     // this is a pseudo attribute type indicating that the parser wants the
Chris@102:     // iterator range pointing to the [first, last) matching characters from
Chris@102:     // the input iterators.
Chris@102:     struct raw_attribute_type {};
Chris@102: 
Chris@102:     template <typename Subject>
Chris@102:     struct raw_directive : unary_parser<Subject, raw_directive<Subject>>
Chris@102:     {
Chris@102:         typedef unary_parser<Subject, raw_directive<Subject> > base_type;
Chris@102:         typedef raw_attribute_type attribute_type;
Chris@102:         static bool const handles_container = Subject::handles_container;
Chris@102:         typedef Subject subject_type;
Chris@102: 
Chris@102:         raw_directive(Subject const& subject)
Chris@102:           : base_type(subject) {}
Chris@102: 
Chris@102:         template <typename Iterator, typename Context
Chris@102:             , typename RContext, typename Attribute>
Chris@102:         bool parse(Iterator& first, Iterator const& last
Chris@102:           , Context const& context, RContext& rcontext, Attribute& attr) const
Chris@102:         {
Chris@102:             x3::skip_over(first, last, context);
Chris@102:             Iterator i = first;
Chris@102:             if (this->subject.parse(i, last, context, rcontext, unused))
Chris@102:             {
Chris@102:                 traits::move_to(first, i, attr);
Chris@102:                 first = i;
Chris@102:                 return true;
Chris@102:             }
Chris@102:             return false;
Chris@102:         }
Chris@102: 
Chris@102:         template <typename Iterator, typename Context, typename RContext>
Chris@102:         bool parse(Iterator& first, Iterator const& last
Chris@102:           , Context const& context, RContext& rcontext, unused_type) const
Chris@102:         {
Chris@102:             return this->subject.parse(first, last, context, rcontext, unused);
Chris@102:         }
Chris@102:     };
Chris@102: 
Chris@102:     struct raw_gen
Chris@102:     {
Chris@102:         template <typename Subject>
Chris@102:         raw_directive<typename extension::as_parser<Subject>::value_type>
Chris@102:         operator[](Subject const& subject) const
Chris@102:         {
Chris@102:             return {as_parser(subject)};
Chris@102:         }
Chris@102:     };
Chris@102: 
Chris@102:     raw_gen const raw = raw_gen();
Chris@102: }}}
Chris@102: 
Chris@102: #endif