1/*=============================================================================
2 Copyright (c) 2001-2011 Joel de Guzman
3
4 Distributed under the Boost Software License, Version 1.0. (See accompanying
5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6=============================================================================*/
7#ifndef BOOST_SPIRIT_QI_DIRECTIVE_RAW_HPP
8#define BOOST_SPIRIT_QI_DIRECTIVE_RAW_HPP
9
10#if defined(_MSC_VER)
11#pragma once
12#endif
13
14#include <boost/spirit/home/qi/meta_compiler.hpp>
15#include <boost/spirit/home/qi/skip_over.hpp>
16#include <boost/spirit/home/qi/parser.hpp>
17#include <boost/spirit/home/qi/detail/assign_to.hpp>
18#include <boost/spirit/home/support/unused.hpp>
19#include <boost/spirit/home/support/info.hpp>
20#include <boost/spirit/home/support/common_terminals.hpp>
21#include <boost/spirit/home/support/unused.hpp>
22#include <boost/spirit/home/support/has_semantic_action.hpp>
23#include <boost/spirit/home/support/handles_container.hpp>
24#include <boost/range/iterator_range_core.hpp> // TODO: use forward include
25
26namespace boost { namespace spirit
27{
28 ///////////////////////////////////////////////////////////////////////////
29 // Enablers
30 ///////////////////////////////////////////////////////////////////////////
31 template <>
32 struct use_directive<qi::domain, tag::raw> // enables raw
33 : mpl::true_ {};
34}}
35
36namespace boost { namespace spirit { namespace qi
37{
38#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
39 using spirit::raw;
40#endif
41 using spirit::raw_type;
42
43 template <typename Subject>
44 struct raw_directive : unary_parser<raw_directive<Subject> >
45 {
46 typedef Subject subject_type;
47 raw_directive(Subject const& subject_)
48 : subject(subject_) {}
49
50 template <typename Context, typename Iterator>
51 struct attribute
52 {
53 typedef iterator_range<Iterator> type;
54 };
55
56 template <typename Iterator, typename Context
57 , typename Skipper, typename Attribute>
58 bool parse(Iterator& first, Iterator const& last
59 , Context& context, Skipper const& skipper, Attribute& attr_) const
60 {
61 qi::skip_over(first, last, skipper);
62 Iterator i = first;
63 if (subject.parse(i, last, context, skipper, unused))
64 {
65 spirit::traits::assign_to(first, i, attr_);
66 first = i;
67 return true;
68 }
69 return false;
70 }
71
72 template <typename Context>
73 info what(Context& context) const
74 {
75 return info("raw", subject.what(context));
76
77 }
78
79 Subject subject;
80 };
81
82 ///////////////////////////////////////////////////////////////////////////
83 // Parser generators: make_xxx function (objects)
84 ///////////////////////////////////////////////////////////////////////////
85 template <typename Subject, typename Modifiers>
86 struct make_directive<tag::raw, Subject, Modifiers>
87 {
88 typedef raw_directive<Subject> result_type;
89 result_type operator()(unused_type, Subject const& subject, unused_type) const
90 {
91 return result_type(subject);
92 }
93 };
94}}}
95
96namespace boost { namespace spirit { namespace traits
97{
98 ///////////////////////////////////////////////////////////////////////////
99 template <typename Subject>
100 struct has_semantic_action<qi::raw_directive<Subject> >
101 : unary_has_semantic_action<Subject> {};
102
103 ///////////////////////////////////////////////////////////////////////////
104 template <typename Subject, typename Attribute, typename Context
105 , typename Iterator>
106 struct handles_container<qi::raw_directive<Subject>, Attribute
107 , Context, Iterator>
108 : mpl::true_ {};
109}}}
110
111#endif
112

source code of boost/libs/spirit/include/boost/spirit/home/qi/directive/raw.hpp