[857] | 1 | /*=============================================================================
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| 2 | Boost.Wave: A Standard compliant C++ preprocessor library
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| 3 |
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| 4 | http://www.boost.org/
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| 5 |
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| 6 | Copyright (c) 2001-2005 Hartmut Kaiser. Distributed under the Boost
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| 7 | Software License, Version 1.0. (See accompanying file
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| 8 | LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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| 9 | =============================================================================*/
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| 10 |
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| 11 | #if !defined(CPP_GRAMMAR_GEN_HPP_80CB8A59_5411_4E45_B406_62531A12FB99_INCLUDED)
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| 12 | #define CPP_GRAMMAR_GEN_HPP_80CB8A59_5411_4E45_B406_62531A12FB99_INCLUDED
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| 13 |
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| 14 | #include <boost/spirit/tree/parse_tree.hpp>
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| 15 |
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| 16 | #include <boost/wave/wave_config.hpp>
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| 17 | #include <boost/wave/language_support.hpp>
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| 18 |
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| 19 | ///////////////////////////////////////////////////////////////////////////////
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| 20 | namespace boost {
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| 21 | namespace wave {
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| 22 | namespace grammars {
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| 23 |
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| 24 | ///////////////////////////////////////////////////////////////////////////////
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| 25 | //
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| 26 | // store parser_id's of all rules of the cpp_grammar here for later access
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| 27 | //
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| 28 | ///////////////////////////////////////////////////////////////////////////////
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| 29 | struct cpp_grammar_rule_ids {
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| 30 | std::size_t pp_statement_id;
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| 31 | std::size_t include_file_id; // #include "..."
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| 32 | std::size_t sysinclude_file_id; // #include <...>
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| 33 | std::size_t macroinclude_file_id; // #include ...
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| 34 | std::size_t plain_define_id; // #define
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| 35 | std::size_t macro_parameters_id;
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| 36 | std::size_t macro_definition_id;
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| 37 | std::size_t undefine_id; // #undef
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| 38 | std::size_t ifdef_id; // #ifdef
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| 39 | std::size_t ifndef_id; // #ifndef
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| 40 | std::size_t if_id; // #if
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| 41 | std::size_t elif_id; // #elif
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| 42 | std::size_t else_id; // #else
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| 43 | std::size_t endif_id; // #endif
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| 44 | std::size_t line_id; // #line
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| 45 | std::size_t error_id; // #error
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| 46 | std::size_t warning_id; // #warning
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| 47 | std::size_t pragma_id; // #pragma
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| 48 | std::size_t illformed_id;
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| 49 | std::size_t ppspace_id;
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| 50 | std::size_t ppqualifiedname_id;
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| 51 | #if BOOST_WAVE_SUPPORT_MS_EXTENSIONS != 0
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| 52 | std::size_t region_id; // #region
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| 53 | std::size_t endregion_id; // #endregion
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| 54 | #endif
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| 55 | };
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| 56 |
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| 57 | ///////////////////////////////////////////////////////////////////////////////
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| 58 | //
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| 59 | // cpp_grammar_gen template class
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| 60 | //
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| 61 | // This template helps separating the compilation of the cpp_grammar
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| 62 | // class from the compilation of the main pp_iterator. This is done to
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| 63 | // safe compilation time.
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| 64 | //
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| 65 | ///////////////////////////////////////////////////////////////////////////////
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| 66 |
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| 67 | template <typename LexIteratorT>
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| 68 | struct cpp_grammar_gen
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| 69 | {
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| 70 | typedef LexIteratorT iterator_type;
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| 71 | typedef typename LexIteratorT::token_type token_type;
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| 72 | typedef typename token_type::position_type position_type;
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| 73 |
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| 74 | // the parser_id's of all rules of the cpp_grammar are stored here
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| 75 | // note: these are valid only after the first call to parse_cpp_grammar
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| 76 | static cpp_grammar_rule_ids rule_ids;
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| 77 |
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| 78 | // the actual position of the last matched T_NEWLINE is stored here into the
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| 79 | // member 'pos_of_newline'
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| 80 | static position_type pos_of_newline;
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| 81 |
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| 82 | // the found_eof flag is set to true during the parsing, if the directive
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| 83 | // under inspection terminates with a T__EOF token
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| 84 | static bool found_eof;
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| 85 |
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| 86 | // the found_directive contains the token_id of the recognized pp directive
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| 87 | static boost::wave::token_id found_directive;
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| 88 |
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| 89 | // parse the cpp_grammar and return the resulting parse tree
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| 90 | static boost::spirit::tree_parse_info<iterator_type>
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| 91 | parse_cpp_grammar (iterator_type const &first, iterator_type const &last,
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| 92 | bool &found_eof_, position_type const &act_pos);
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| 93 | };
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| 94 |
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| 95 | ///////////////////////////////////////////////////////////////////////////////
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| 96 | // definitions of the static members
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| 97 | template <typename LexIteratorT>
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| 98 | cpp_grammar_rule_ids
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| 99 | cpp_grammar_gen<LexIteratorT>::rule_ids;
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| 100 |
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| 101 | template <typename LexIteratorT>
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| 102 | typename LexIteratorT::token_type::position_type
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| 103 | cpp_grammar_gen<LexIteratorT>::pos_of_newline;
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| 104 |
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| 105 | template <typename LexIteratorT>
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| 106 | bool cpp_grammar_gen<LexIteratorT>::found_eof = false;
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| 107 |
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| 108 | template <typename LexIteratorT>
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| 109 | boost::wave::token_id cpp_grammar_gen<LexIteratorT>::found_directive =
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| 110 | boost::wave::T_EOF;
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| 111 |
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| 112 | ///////////////////////////////////////////////////////////////////////////////
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| 113 | } // namespace grammars
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| 114 | } // namespace wave
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| 115 | } // namespace boost
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| 116 |
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| 117 | #endif // !defined(CPP_GRAMMAR_GEN_HPP_80CB8A59_5411_4E45_B406_62531A12FB99_INCLUDED)
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