59 lines
2.3 KiB
C++
59 lines
2.3 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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Copyright (c) 2001-2011 Hartmut Kaiser
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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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=============================================================================*/
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#if !defined(BOOST_SPIRIT_CONJURE_EXPRESSION_HPP)
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#define BOOST_SPIRIT_CONJURE_EXPRESSION_HPP
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///////////////////////////////////////////////////////////////////////////////
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// Spirit v2.5 allows you to suppress automatic generation
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// of predefined terminals to speed up complation. With
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// BOOST_SPIRIT_NO_PREDEFINED_TERMINALS defined, you are
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// responsible in creating instances of the terminals that
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// you need (e.g. see qi::uint_type uint_ below).
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#define BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
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///////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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// Uncomment this if you want to enable debugging
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// #define BOOST_SPIRIT_QI_DEBUG
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///////////////////////////////////////////////////////////////////////////////
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#include <boost/spirit/include/qi.hpp>
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#include "ast.hpp"
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#include "error_handler.hpp"
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#include <vector>
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namespace client { namespace parser
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{
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namespace qi = boost::spirit::qi;
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namespace ascii = boost::spirit::ascii;
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///////////////////////////////////////////////////////////////////////////////
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// The expression grammar
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///////////////////////////////////////////////////////////////////////////////
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template <typename Iterator, typename Lexer>
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struct expression : qi::grammar<Iterator, ast::expression()>
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{
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typedef error_handler<typename Lexer::base_iterator_type, Iterator>
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error_handler_type;
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expression(error_handler_type& error_handler, Lexer const& l);
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Lexer const& lexer;
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qi::rule<Iterator, ast::expression()> expr;
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qi::rule<Iterator, ast::operand()> unary_expr, primary_expr;
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qi::rule<Iterator, ast::function_call()> function_call;
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qi::rule<Iterator, std::list<ast::expression>()> argument_list;
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qi::rule<Iterator, std::string()> identifier;
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};
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}}
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#endif
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