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1 | // Copyright (c) 2001-2011 Hartmut Kaiser |
2 | // | |
3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
5 | ||
6 | #if !defined(BOOST_SPIRIT_REPOSITORY_KARMA_CONFIX_AUG_19_2008_1041AM) | |
7 | #define BOOST_SPIRIT_REPOSITORY_KARMA_CONFIX_AUG_19_2008_1041AM | |
8 | ||
9 | #if defined(_MSC_VER) | |
10 | #pragma once | |
11 | #endif | |
12 | ||
13 | #include <boost/spirit/home/support/common_terminals.hpp> | |
14 | #include <boost/spirit/home/support/info.hpp> | |
15 | #include <boost/spirit/home/support/unused.hpp> | |
16 | #include <boost/spirit/home/karma/detail/attributes.hpp> | |
17 | #include <boost/spirit/home/karma/domain.hpp> | |
18 | #include <boost/spirit/home/karma/meta_compiler.hpp> | |
19 | ||
20 | #include <boost/spirit/repository/home/support/confix.hpp> | |
21 | ||
22 | #include <boost/fusion/include/vector.hpp> | |
23 | #include <boost/mpl/or.hpp> | |
24 | ||
25 | /////////////////////////////////////////////////////////////////////////////// | |
26 | namespace boost { namespace spirit | |
27 | { | |
28 | /////////////////////////////////////////////////////////////////////////// | |
29 | // Enablers | |
30 | /////////////////////////////////////////////////////////////////////////// | |
31 | ||
32 | // enables confix(..., ...)[] | |
33 | template <typename Prefix, typename Suffix> | |
34 | struct use_directive<karma::domain | |
35 | , terminal_ex<repository::tag::confix, fusion::vector2<Prefix, Suffix> > > | |
36 | : mpl::true_ {}; | |
37 | ||
38 | // enables *lazy* confix(..., ...)[g] | |
39 | template <> | |
40 | struct use_lazy_directive<karma::domain, repository::tag::confix, 2> | |
41 | : mpl::true_ {}; | |
42 | ||
43 | }} | |
44 | ||
45 | /////////////////////////////////////////////////////////////////////////////// | |
46 | namespace boost { namespace spirit { namespace repository { namespace karma | |
47 | { | |
11fdf7f2 | 48 | #ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS |
7c673cae | 49 | using repository::confix; |
11fdf7f2 TL |
50 | #endif |
51 | using repository::confix_type; | |
7c673cae FG |
52 | |
53 | /////////////////////////////////////////////////////////////////////////// | |
54 | template <typename Subject, typename Prefix, typename Suffix> | |
55 | struct confix_generator | |
56 | : spirit::karma::primitive_generator<confix_generator<Subject, Prefix, Suffix> > | |
57 | { | |
58 | typedef Subject subject_type; | |
59 | ||
60 | template <typename Context, typename Iterator> | |
61 | struct attribute | |
62 | : traits::attribute_of<subject_type, Context, Iterator> | |
63 | {}; | |
64 | ||
65 | confix_generator(Subject const& subject, Prefix const& prefix | |
66 | , Suffix const& suffix) | |
67 | : subject(subject), prefix(prefix), suffix(suffix) {} | |
68 | ||
69 | /////////////////////////////////////////////////////////////////////// | |
70 | template <typename OutputIterator, typename Context, typename Delimiter | |
71 | , typename Attribute> | |
72 | bool generate(OutputIterator& sink, Context& ctx, Delimiter const& d | |
73 | , Attribute const& attr) const | |
74 | { | |
75 | // generate the prefix, the embedded item and the suffix | |
76 | return prefix.generate(sink, ctx, d, unused) && | |
77 | subject.generate(sink, ctx, d, attr) && | |
78 | suffix.generate(sink, ctx, d, unused); | |
79 | } | |
80 | ||
81 | template <typename Context> | |
82 | info what(Context const& ctx) const | |
83 | { | |
84 | return info("confix", subject.what(ctx)); | |
85 | } | |
86 | ||
87 | Subject subject; | |
88 | Prefix prefix; | |
89 | Suffix suffix; | |
90 | }; | |
91 | ||
92 | }}}} | |
93 | ||
94 | /////////////////////////////////////////////////////////////////////////////// | |
95 | namespace boost { namespace spirit { namespace karma | |
96 | { | |
97 | /////////////////////////////////////////////////////////////////////////// | |
98 | // Generator generators: make_xxx function (objects) | |
99 | /////////////////////////////////////////////////////////////////////////// | |
100 | ||
101 | // creates confix(..., ...)[] directive generator | |
102 | template <typename Prefix, typename Suffix, typename Subject | |
103 | , typename Modifiers> | |
104 | struct make_directive< | |
105 | terminal_ex<repository::tag::confix, fusion::vector2<Prefix, Suffix> > | |
106 | , Subject, Modifiers> | |
107 | { | |
108 | typedef typename | |
109 | result_of::compile<karma::domain, Prefix, Modifiers>::type | |
110 | prefix_type; | |
111 | typedef typename | |
112 | result_of::compile<karma::domain, Suffix, Modifiers>::type | |
113 | suffix_type; | |
114 | ||
115 | typedef repository::karma::confix_generator< | |
116 | Subject, prefix_type, suffix_type> result_type; | |
117 | ||
118 | template <typename Terminal> | |
119 | result_type operator()(Terminal const& term, Subject const& subject | |
120 | , Modifiers const& modifiers) const | |
121 | { | |
122 | return result_type(subject | |
123 | , compile<karma::domain>(fusion::at_c<0>(term.args), modifiers) | |
124 | , compile<karma::domain>(fusion::at_c<1>(term.args), modifiers)); | |
125 | } | |
126 | }; | |
127 | ||
128 | }}} | |
129 | ||
130 | namespace boost { namespace spirit { namespace traits | |
131 | { | |
132 | template <typename Subject, typename Prefix, typename Suffix> | |
133 | struct has_semantic_action< | |
134 | repository::karma::confix_generator<Subject, Prefix, Suffix> > | |
135 | : mpl::or_< | |
136 | has_semantic_action<Subject> | |
137 | , has_semantic_action<Prefix> | |
138 | , has_semantic_action<Suffix> | |
139 | > {}; | |
140 | }}} | |
141 | ||
142 | #endif |