75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
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// Copyright (c) 2001-2011 Hartmut Kaiser
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_SPIRIT_LEX_LEXER_SEQUENCE_HPP
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#define BOOST_SPIRIT_LEX_LEXER_SEQUENCE_HPP
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#if defined(_MSC_VER)
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#pragma once
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#endif
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#include <boost/spirit/home/lex/domain.hpp>
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#include <boost/spirit/home/lex/lexer_type.hpp>
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#include <boost/spirit/home/lex/meta_compiler.hpp>
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#include <boost/spirit/home/lex/detail/sequence_function.hpp>
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#include <boost/fusion/include/any.hpp>
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#include <boost/proto/operators.hpp>
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#include <boost/proto/tags.hpp>
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namespace boost { namespace spirit
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{
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///////////////////////////////////////////////////////////////////////////
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// Enablers
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///////////////////////////////////////////////////////////////////////////
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template <>
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struct use_operator<lex::domain, proto::tag::bitwise_or> // enables |
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: mpl::true_ {};
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template <>
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struct flatten_tree<lex::domain, proto::tag::bitwise_or> // flattens |
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: mpl::true_ {};
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}}
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namespace boost { namespace spirit { namespace lex
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{
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template <typename Elements>
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struct sequence : nary_lexer<sequence<Elements> >
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{
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sequence(Elements const& elements)
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: elements(elements) {}
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template <typename LexerDef, typename String>
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void collect(LexerDef& lexdef, String const& state
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, String const& targetstate) const
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{
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typedef detail::sequence_collect_function<LexerDef, String>
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collect_function_type;
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collect_function_type f (lexdef, state, targetstate);
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fusion::any(elements, f);
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}
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template <typename LexerDef>
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void add_actions(LexerDef& lexdef) const
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{
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detail::sequence_add_actions_function<LexerDef> f (lexdef);
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fusion::any(elements, f);
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}
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Elements elements;
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};
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///////////////////////////////////////////////////////////////////////////
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// Lexer generator: make_xxx function (objects)
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///////////////////////////////////////////////////////////////////////////
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template <typename Elements, typename Modifiers>
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struct make_composite<proto::tag::bitwise_or, Elements, Modifiers>
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: make_nary_composite<Elements, sequence>
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{};
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}}} // namespace boost::spirit::lex
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#endif
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