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#ifndef BOOST_SPIRIT_LEX_LEXER_SEQUENCE_HPP
7#define BOOST_SPIRIT_LEX_LEXER_SEQUENCE_HPP
8
9#if defined(_MSC_VER)
10#pragma once
11#endif
12
13#include <boost/spirit/home/lex/domain.hpp>
14#include <boost/spirit/home/lex/lexer_type.hpp>
15#include <boost/spirit/home/lex/meta_compiler.hpp>
16#include <boost/spirit/home/lex/detail/sequence_function.hpp>
17#include <boost/fusion/include/any.hpp>
18#include <boost/proto/operators.hpp>
19#include <boost/proto/tags.hpp>
20
21namespace boost { namespace spirit
22{
23 ///////////////////////////////////////////////////////////////////////////
24 // Enablers
25 ///////////////////////////////////////////////////////////////////////////
26 template <>
27 struct use_operator<lex::domain, proto::tag::bitwise_or> // enables |
28 : mpl::true_ {};
29
30 template <>
31 struct flatten_tree<lex::domain, proto::tag::bitwise_or> // flattens |
32 : mpl::true_ {};
33
34}}
35
36namespace boost { namespace spirit { namespace lex
37{
38 template <typename Elements>
39 struct sequence : nary_lexer<sequence<Elements> >
40 {
41 sequence(Elements const& elements)
42 : elements(elements) {}
43
44 template <typename LexerDef, typename String>
45 void collect(LexerDef& lexdef, String const& state
46 , String const& targetstate) const
47 {
48 typedef detail::sequence_collect_function<LexerDef, String>
49 collect_function_type;
50 collect_function_type f (lexdef, state, targetstate);
51 fusion::any(elements, f);
52 }
53
54 template <typename LexerDef>
55 void add_actions(LexerDef& lexdef) const
56 {
57 detail::sequence_add_actions_function<LexerDef> f (lexdef);
58 fusion::any(elements, f);
59 }
60
61 Elements elements;
62 };
63
64 ///////////////////////////////////////////////////////////////////////////
65 // Lexer generator: make_xxx function (objects)
66 ///////////////////////////////////////////////////////////////////////////
67 template <typename Elements, typename Modifiers>
68 struct make_composite<proto::tag::bitwise_or, Elements, Modifiers>
69 : make_nary_composite<Elements, sequence>
70 {};
71
72}}} // namespace boost::spirit::lex
73
74#endif
75

source code of boost/libs/spirit/include/boost/spirit/home/lex/lexer/sequence.hpp