ceph/src/boost/libs/spirit/example/qi/compiler_tutorial/conjure3/expression.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 Joel de Guzman
   3     Copyright (c) 2001-2011 Hartmut Kaiser
   4
   5     Distributed under the Boost Software License, Version 1.0. (See accompanying
   6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7 =============================================================================*/
   8 #if !defined(BOOST_SPIRIT_CONJURE_EXPRESSION_HPP)
   9 #define BOOST_SPIRIT_CONJURE_EXPRESSION_HPP
  10
  11 ///////////////////////////////////////////////////////////////////////////////
  12 // Spirit v2.5 allows you to suppress automatic generation
  13 // of predefined terminals to speed up complation. With
  14 // BOOST_SPIRIT_NO_PREDEFINED_TERMINALS defined, you are
  15 // responsible in creating instances of the terminals that
  16 // you need (e.g. see qi::uint_type uint_ below).
  17 #define BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
  18 ///////////////////////////////////////////////////////////////////////////////
  19
  20 ///////////////////////////////////////////////////////////////////////////////
  21 // Uncomment this if you want to enable debugging
  22 // #define BOOST_SPIRIT_QI_DEBUG
  23 ///////////////////////////////////////////////////////////////////////////////
  24
  25 #include <boost/spirit/include/qi.hpp>
  26 #include "ast.hpp"
  27 #include "error_handler.hpp"
  28 #include <vector>
  29
  30 namespace client { namespace parser
  31 {
  32     namespace qi = boost::spirit::qi;
  33     namespace ascii = boost::spirit::ascii;
  34
  35     ///////////////////////////////////////////////////////////////////////////////
  36     //  The expression grammar
  37     ///////////////////////////////////////////////////////////////////////////////
  38     template <typename Iterator, typename Lexer>
  39     struct expression : qi::grammar<Iterator, ast::expression()>
  40     {
  41         typedef error_handler<typename Lexer::base_iterator_type, Iterator>
  42             error_handler_type;
  43
  44         expression(error_handler_type& error_handler, Lexer const& l);
  45
  46         Lexer const& lexer;
  47
  48         qi::rule<Iterator, ast::expression()> expr;
  49         qi::rule<Iterator, ast::operand()> unary_expr, postfix_expr;
  50         qi::rule<Iterator, ast::function_call()> function_call;
  51         qi::rule<Iterator, std::list<ast::expression>()> argument_list;
  52         qi::rule<Iterator, std::string()> identifier;
  53         qi::rule<Iterator, ast::primary_expr()> primary_expr;
  54     };
  55 }}
  56
  57 #endif
  58
  59