[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_HPP_FEAEBC2E_2734_428B_A7CA_85E5A415E23E_INCLUDED)
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| 12 | #define CPP_GRAMMAR_HPP_FEAEBC2E_2734_428B_A7CA_85E5A415E23E_INCLUDED
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| 13 |
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| 14 | #include <boost/spirit/core.hpp>
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| 15 | #include <boost/spirit/tree/parse_tree.hpp>
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| 16 | #include <boost/spirit/tree/parse_tree_utils.hpp>
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| 17 | #include <boost/spirit/utility/confix.hpp>
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| 18 | #include <boost/spirit/utility/lists.hpp>
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| 19 |
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| 20 | #include <boost/wave/wave_config.hpp>
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| 21 |
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| 22 | #if BOOST_WAVE_DUMP_PARSE_TREE != 0
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| 23 | #include <map>
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| 24 | #include <boost/spirit/tree/tree_to_xml.hpp>
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| 25 | #endif
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| 26 |
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| 27 | #include <boost/wave/token_ids.hpp>
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| 28 | #include <boost/wave/grammars/cpp_grammar_gen.hpp>
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| 29 | #include <boost/wave/util/pattern_parser.hpp>
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| 30 |
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| 31 | #include <boost/wave/cpp_exceptions.hpp>
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| 32 |
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| 33 | ///////////////////////////////////////////////////////////////////////////////
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| 34 | namespace boost {
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| 35 | namespace wave {
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| 36 | namespace grammars {
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| 37 |
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| 38 | namespace impl {
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| 39 |
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| 40 | ///////////////////////////////////////////////////////////////////////////////
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| 41 | //
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| 42 | // store_position
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| 43 | //
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| 44 | // The store_position functor extracts the actual file position from the
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| 45 | // supplied token.
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| 46 | //
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| 47 | ///////////////////////////////////////////////////////////////////////////////
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| 48 |
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| 49 | template <typename PositionT>
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| 50 | struct store_position {
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| 51 |
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| 52 | store_position(PositionT &pos_) : pos(pos_) {}
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| 53 |
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| 54 | template <typename TokenT>
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| 55 | void operator()(TokenT const &token) const
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| 56 | {
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| 57 | pos = token.get_position();
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| 58 | }
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| 59 |
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| 60 | PositionT &pos;
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| 61 | };
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| 62 |
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| 63 | ///////////////////////////////////////////////////////////////////////////////
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| 64 | //
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| 65 | // store_found_eof
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| 66 | //
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| 67 | // The store_found_eof functor sets a given flag if the T_EOF token was
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| 68 | // found during the parsing process
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| 69 | //
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| 70 | ///////////////////////////////////////////////////////////////////////////////
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| 71 |
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| 72 | struct store_found_eof {
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| 73 |
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| 74 | store_found_eof(bool &found_eof_) : found_eof(found_eof_) {}
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| 75 |
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| 76 | template <typename TokenT>
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| 77 | void operator()(TokenT const &token) const
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| 78 | {
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| 79 | found_eof = true;
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| 80 | }
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| 81 |
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| 82 | bool &found_eof;
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| 83 | };
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| 84 |
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| 85 | ///////////////////////////////////////////////////////////////////////////////
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| 86 | //
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| 87 | // store_found_directive
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| 88 | //
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| 89 | // The store_found_directive functor stores the token_id of the recognized
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| 90 | // pp directive
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| 91 | //
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| 92 | ///////////////////////////////////////////////////////////////////////////////
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| 93 |
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| 94 | struct store_found_directive {
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| 95 |
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| 96 | store_found_directive(boost::wave::token_id &found_directive_)
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| 97 | : found_directive(found_directive_) {}
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| 98 |
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| 99 | template <typename TokenT>
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| 100 | void operator()(TokenT const &token) const
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| 101 | {
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| 102 | found_directive = boost::wave::token_id(token);
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| 103 | }
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| 104 |
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| 105 | boost::wave::token_id &found_directive;
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| 106 | };
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| 107 |
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| 108 | ///////////////////////////////////////////////////////////////////////////////
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| 109 | //
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| 110 | // flush_underlying_parser
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| 111 | //
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| 112 | // The flush_underlying_parser flushes the underlying
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| 113 | // multi_pass_iterator during the normal parsing process. This is
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| 114 | // used at certain points during the parsing process, when it is
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| 115 | // clear, that no backtracking is needed anymore and the input
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| 116 | // gathered so far may be discarded.
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| 117 | //
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| 118 | ///////////////////////////////////////////////////////////////////////////////
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| 119 | struct flush_underlying_parser
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| 120 | : public boost::spirit::parser<flush_underlying_parser>
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| 121 | {
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| 122 | typedef flush_underlying_parser this_t;
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| 123 |
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| 124 | template <typename ScannerT>
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| 125 | typename boost::spirit::parser_result<this_t, ScannerT>::type
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| 126 | parse(ScannerT const& scan) const
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| 127 | {
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| 128 | scan.first.clear_queue();
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| 129 | return scan.empty_match();
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| 130 | }
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| 131 | };
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| 132 |
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| 133 | flush_underlying_parser const
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| 134 | flush_underlying_parser_p = flush_underlying_parser();
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| 135 |
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| 136 | } // anonymous namespace
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| 137 |
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| 138 | ///////////////////////////////////////////////////////////////////////////////
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| 139 | // define, whether the rule's should generate some debug output
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| 140 | #define TRACE_CPP_GRAMMAR \
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| 141 | bool(BOOST_SPIRIT_DEBUG_FLAGS_CPP & BOOST_SPIRIT_DEBUG_FLAGS_CPP_GRAMMAR) \
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| 142 | /**/
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| 143 |
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| 144 | ///////////////////////////////////////////////////////////////////////////////
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| 145 | // Encapsulation of the C++ preprocessor grammar.
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| 146 | template <typename PositionT>
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| 147 | struct cpp_grammar :
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| 148 | public boost::spirit::grammar<cpp_grammar<PositionT> >
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| 149 | {
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| 150 | typedef cpp_grammar<PositionT> grammar_t;
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| 151 | typedef impl::store_position<PositionT> store_pos_t;
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| 152 | typedef impl::store_found_eof store_found_eof_t;
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| 153 | typedef impl::store_found_directive store_found_directive_t;
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| 154 |
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| 155 | template <typename ScannerT>
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| 156 | struct definition
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| 157 | {
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| 158 | // non-parse_tree generating rule type
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| 159 | typedef typename ScannerT::iteration_policy_t iteration_policy_t;
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| 160 | typedef boost::spirit::match_policy match_policy_t;
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| 161 | typedef typename ScannerT::action_policy_t action_policy_t;
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| 162 | typedef
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| 163 | boost::spirit::scanner_policies<
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| 164 | iteration_policy_t, match_policy_t, action_policy_t>
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| 165 | policies_t;
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| 166 | typedef
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| 167 | boost::spirit::scanner<typename ScannerT::iterator_t, policies_t>
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| 168 | non_tree_scanner_t;
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| 169 | typedef boost::spirit::rule<non_tree_scanner_t> no_tree_rule_t;
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| 170 |
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| 171 | // 'normal' (parse_tree generating) rule type
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| 172 | typedef boost::spirit::rule<ScannerT> rule_t;
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| 173 |
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| 174 | rule_t pp_statement;
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| 175 | rule_t include_file, system_include_file, macro_include_file;
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| 176 | rule_t plain_define, macro_definition, macro_parameters;
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| 177 | rule_t undefine;
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| 178 | rule_t ppifdef, ppifndef, ppif, ppelse, ppelif, ppendif;
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| 179 | rule_t ppline;
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| 180 | rule_t pperror;
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| 181 | rule_t ppwarning;
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| 182 | rule_t pppragma;
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| 183 | rule_t illformed;
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| 184 | rule_t ppqualifiedname;
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| 185 | rule_t eol_tokens;
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| 186 | no_tree_rule_t ppsp;
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| 187 | #if BOOST_WAVE_SUPPORT_MS_EXTENSIONS != 0
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| 188 | rule_t ppregion;
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| 189 | rule_t ppendregion;
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| 190 | #endif
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| 191 |
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| 192 | definition(cpp_grammar const &self)
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| 193 | {
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| 194 | // import the spirit and cpplexer namespaces here
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| 195 | using namespace boost::spirit;
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| 196 | using namespace boost::wave;
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| 197 | using namespace boost::wave::util;
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| 198 |
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| 199 | // save the rule id's for later use
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| 200 | self.rule_ids.pp_statement_id = pp_statement.id().to_long();
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| 201 | self.rule_ids.include_file_id = include_file.id().to_long();
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| 202 | self.rule_ids.sysinclude_file_id = system_include_file.id().to_long();
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| 203 | self.rule_ids.macroinclude_file_id = macro_include_file.id().to_long();
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| 204 | self.rule_ids.plain_define_id = plain_define.id().to_long();
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| 205 | self.rule_ids.macro_parameters_id = macro_parameters.id().to_long();
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| 206 | self.rule_ids.macro_definition_id = macro_definition.id().to_long();
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| 207 | self.rule_ids.undefine_id = undefine.id().to_long();
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| 208 | self.rule_ids.ifdef_id = ppifdef.id().to_long();
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| 209 | self.rule_ids.ifndef_id = ppifndef.id().to_long();
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| 210 | self.rule_ids.if_id = ppif.id().to_long();
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| 211 | self.rule_ids.elif_id = ppelif.id().to_long();
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| 212 | self.rule_ids.else_id = ppelse.id().to_long();
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| 213 | self.rule_ids.endif_id = ppendif.id().to_long();
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| 214 | self.rule_ids.line_id = ppline.id().to_long();
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| 215 | self.rule_ids.error_id = pperror.id().to_long();
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| 216 | self.rule_ids.warning_id = ppwarning.id().to_long();
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| 217 | self.rule_ids.pragma_id = pppragma.id().to_long();
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| 218 | self.rule_ids.illformed_id = illformed.id().to_long();
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| 219 | self.rule_ids.ppspace_id = ppsp.id().to_long();
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| 220 | self.rule_ids.ppqualifiedname_id = ppqualifiedname.id().to_long();
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| 221 | #if BOOST_WAVE_SUPPORT_MS_EXTENSIONS != 0
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| 222 | self.rule_ids.region_id = ppregion.id().to_long();
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| 223 | self.rule_ids.endregion_id = ppendregion.id().to_long();
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| 224 | #endif
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| 225 |
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| 226 | #if BOOST_WAVE_DUMP_PARSE_TREE != 0
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| 227 | self.map_rule_id_to_name.init_rule_id_to_name_map(self);
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| 228 | #endif
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| 229 |
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| 230 | // recognizes preprocessor directives only
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| 231 |
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| 232 | // C++ standard 16.1: A preprocessing directive consists of a sequence
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| 233 | // of preprocessing tokens. The first token in the sequence is #
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| 234 | // preprocessing token that is either the first character in the source
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| 235 | // file (optionally after white space containing no new-line
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| 236 | // characters) or that follows white space containing at least one
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| 237 | // new-line character. The last token in the sequence is the first
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| 238 | // new-line character that follows the first token in the sequence.
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| 239 |
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| 240 | pp_statement
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| 241 | = ( include_file
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| 242 | | system_include_file
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| 243 | | macro_include_file
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| 244 | | plain_define
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| 245 | | undefine
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| 246 | | ppifdef
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| 247 | | ppifndef
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| 248 | | ppif
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| 249 | | ppelse
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| 250 | | ppelif
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| 251 | | ppendif
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| 252 | | ppline
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| 253 | | pperror
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| 254 | | ppwarning
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| 255 | | pppragma
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| 256 | | illformed
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| 257 | #if BOOST_WAVE_SUPPORT_MS_EXTENSIONS != 0
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| 258 | | ppregion
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| 259 | | ppendregion
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| 260 | #endif
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| 261 | )
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| 262 | >> eol_tokens
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| 263 | // In parser debug mode it is useful not to flush the underlying stream
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| 264 | // to allow its investigation in the debugger and to see the correct
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| 265 | // output in the printed debug log..
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| 266 | // Note: this may break the parser, though.
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| 267 | #if !(defined(BOOST_SPIRIT_DEBUG) && \
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| 268 | (BOOST_SPIRIT_DEBUG_FLAGS_CPP & BOOST_SPIRIT_DEBUG_FLAGS_CPP_GRAMMAR) \
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| 269 | )
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| 270 | >> impl::flush_underlying_parser_p
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| 271 | #endif // !(defined(BOOST_SPIRIT_DEBUG) &&
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| 272 | ;
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| 273 |
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| 274 | // #include ...
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| 275 | include_file // include "..."
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| 276 | = ch_p(T_PP_QHEADER)
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| 277 | [ store_found_directive_t(self.found_directive) ]
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| 278 | #if BOOST_WAVE_SUPPORT_INCLUDE_NEXT != 0
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| 279 | | ch_p(T_PP_QHEADER_NEXT)
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| 280 | [ store_found_directive_t(self.found_directive) ]
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| 281 | #endif
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| 282 | ;
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| 283 |
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| 284 | system_include_file // include <...>
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| 285 | = ch_p(T_PP_HHEADER)
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| 286 | [ store_found_directive_t(self.found_directive) ]
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| 287 | #if BOOST_WAVE_SUPPORT_INCLUDE_NEXT != 0
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| 288 | | ch_p(T_PP_HHEADER_NEXT)
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| 289 | [ store_found_directive_t(self.found_directive) ]
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| 290 | #endif
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| 291 | ;
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| 292 |
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| 293 | macro_include_file // include ...anything else...
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| 294 | = no_node_d
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| 295 | [
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| 296 | ch_p(T_PP_INCLUDE)
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| 297 | [ store_found_directive_t(self.found_directive) ]
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| 298 | #if BOOST_WAVE_SUPPORT_INCLUDE_NEXT != 0
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| 299 | | ch_p(T_PP_INCLUDE_NEXT)
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| 300 | [ store_found_directive_t(self.found_directive) ]
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| 301 | #endif
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| 302 | ]
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| 303 | >> *( anychar_p -
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| 304 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
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| 305 | )
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| 306 | ;
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| 307 |
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| 308 | // #define FOO foo (with optional parameters)
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| 309 | plain_define
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| 310 | = no_node_d
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| 311 | [
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| 312 | ch_p(T_PP_DEFINE)
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| 313 | [ store_found_directive_t(self.found_directive) ]
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| 314 | >> +ppsp
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| 315 | ]
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| 316 | >> ( ch_p(T_IDENTIFIER)
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| 317 | | pattern_p(KeywordTokenType, TokenTypeMask)
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| 318 | | pattern_p(OperatorTokenType|AltExtTokenType,
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| 319 | ExtTokenTypeMask) // and, bit_and etc.
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| 320 | )
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| 321 | >> ( ( no_node_d[eps_p(ch_p(T_LEFTPAREN))]
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| 322 | >> macro_parameters
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| 323 | >> !macro_definition
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| 324 | )
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| 325 | | !( no_node_d[+ppsp]
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| 326 | >> macro_definition
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| 327 | )
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| 328 | )
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| 329 | ;
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| 330 |
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| 331 | // parameter list
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| 332 | // normal C++ mode
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| 333 | macro_parameters
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| 334 | = confix_p(
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| 335 | no_node_d[ch_p(T_LEFTPAREN) >> *ppsp],
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| 336 | !list_p(
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| 337 | ( ch_p(T_IDENTIFIER)
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| 338 | | pattern_p(KeywordTokenType, TokenTypeMask)
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| 339 | | pattern_p(OperatorTokenType|AltExtTokenType,
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| 340 | ExtTokenTypeMask) // and, bit_and etc.
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| 341 | #if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
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| 342 | | ch_p(T_ELLIPSIS)
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| 343 | #endif
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| 344 | ),
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| 345 | no_node_d[*ppsp >> ch_p(T_COMMA) >> *ppsp]
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| 346 | ),
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| 347 | no_node_d[*ppsp >> ch_p(T_RIGHTPAREN)]
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| 348 | )
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| 349 | ;
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| 350 |
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| 351 | // macro body (anything left until eol)
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| 352 | macro_definition
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| 353 | = no_node_d[*ppsp]
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| 354 | >> *( anychar_p -
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| 355 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
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| 356 | )
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| 357 | ;
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| 358 |
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| 359 | // #undef FOO
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| 360 | undefine
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| 361 | = no_node_d
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| 362 | [
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| 363 | ch_p(T_PP_UNDEF)
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| 364 | [ store_found_directive_t(self.found_directive) ]
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| 365 | >> +ppsp
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| 366 | ]
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| 367 | >> ( ch_p(T_IDENTIFIER)
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| 368 | | pattern_p(KeywordTokenType, TokenTypeMask)
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| 369 | | pattern_p(OperatorTokenType|AltExtTokenType,
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| 370 | ExtTokenTypeMask) // and, bit_and etc.
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| 371 | )
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| 372 | ;
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| 373 |
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| 374 | // #ifdef et.al.
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| 375 | ppifdef
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| 376 | = no_node_d
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| 377 | [
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| 378 | ch_p(T_PP_IFDEF)
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| 379 | [ store_found_directive_t(self.found_directive) ]
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| 380 | >> +ppsp
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| 381 | ]
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| 382 | >> ppqualifiedname
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| 383 | ;
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| 384 |
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| 385 | ppifndef
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| 386 | = no_node_d
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| 387 | [
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| 388 | ch_p(T_PP_IFNDEF)
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| 389 | [ store_found_directive_t(self.found_directive) ]
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| 390 | >> +ppsp
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| 391 | ]
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| 392 | >> ppqualifiedname
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| 393 | ;
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| 394 |
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| 395 | ppif
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| 396 | = no_node_d
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| 397 | [
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| 398 | ch_p(T_PP_IF)
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| 399 | [ store_found_directive_t(self.found_directive) ]
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| 400 | >> *ppsp
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| 401 | ]
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| 402 | >> +( anychar_p -
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| 403 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
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| 404 | )
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| 405 | ;
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| 406 |
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| 407 | ppelse
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| 408 | = no_node_d
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| 409 | [
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| 410 | ch_p(T_PP_ELSE)
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| 411 | [ store_found_directive_t(self.found_directive) ]
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| 412 | ]
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| 413 | ;
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| 414 |
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| 415 | ppelif
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| 416 | = no_node_d
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| 417 | [
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| 418 | ch_p(T_PP_ELIF)
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| 419 | [ store_found_directive_t(self.found_directive) ]
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| 420 | >> *ppsp
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| 421 | ]
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| 422 | >> +( anychar_p -
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| 423 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
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| 424 | )
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| 425 | ;
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| 426 |
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| 427 | ppendif
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| 428 | = no_node_d
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| 429 | [
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| 430 | ch_p(T_PP_ENDIF)
|
---|
| 431 | [ store_found_directive_t(self.found_directive) ]
|
---|
| 432 | ]
|
---|
| 433 | ;
|
---|
| 434 |
|
---|
| 435 | // #line ...
|
---|
| 436 | ppline
|
---|
| 437 | = no_node_d
|
---|
| 438 | [
|
---|
| 439 | ch_p(T_PP_LINE)
|
---|
| 440 | [ store_found_directive_t(self.found_directive) ]
|
---|
| 441 | >> *ppsp
|
---|
| 442 | ]
|
---|
| 443 | >> +( anychar_p -
|
---|
| 444 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
|
---|
| 445 | )
|
---|
| 446 | ;
|
---|
| 447 |
|
---|
| 448 | #if BOOST_WAVE_SUPPORT_MS_EXTENSIONS != 0
|
---|
| 449 | // #region ...
|
---|
| 450 | ppregion
|
---|
| 451 | = no_node_d
|
---|
| 452 | [
|
---|
| 453 | ch_p(T_MSEXT_PP_REGION)
|
---|
| 454 | [ store_found_directive_t(self.found_directive) ]
|
---|
| 455 | >> +ppsp
|
---|
| 456 | ]
|
---|
| 457 | >> ppqualifiedname
|
---|
| 458 | ;
|
---|
| 459 |
|
---|
| 460 | // #endregion
|
---|
| 461 | ppendregion
|
---|
| 462 | = no_node_d
|
---|
| 463 | [
|
---|
| 464 | ch_p(T_MSEXT_PP_ENDREGION)
|
---|
| 465 | [ store_found_directive_t(self.found_directive) ]
|
---|
| 466 | ]
|
---|
| 467 | ;
|
---|
| 468 | #endif
|
---|
| 469 |
|
---|
| 470 | // # something else (ill formed preprocessor directive)
|
---|
| 471 | illformed // for error reporting
|
---|
| 472 | = no_node_d
|
---|
| 473 | [
|
---|
| 474 | pattern_p(T_POUND, MainTokenMask)
|
---|
| 475 | >> *ppsp
|
---|
| 476 | ]
|
---|
| 477 | >> ( anychar_p -
|
---|
| 478 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
|
---|
| 479 | )
|
---|
| 480 | >> no_node_d
|
---|
| 481 | [
|
---|
| 482 | *( anychar_p -
|
---|
| 483 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
|
---|
| 484 | )
|
---|
| 485 | ]
|
---|
| 486 | ;
|
---|
| 487 |
|
---|
| 488 | // #error
|
---|
| 489 | pperror
|
---|
| 490 | = no_node_d
|
---|
| 491 | [
|
---|
| 492 | ch_p(T_PP_ERROR)
|
---|
| 493 | [ store_found_directive_t(self.found_directive) ]
|
---|
| 494 | >> *ppsp
|
---|
| 495 | ]
|
---|
| 496 | >> *( anychar_p -
|
---|
| 497 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
|
---|
| 498 | )
|
---|
| 499 | ;
|
---|
| 500 |
|
---|
| 501 | // #warning
|
---|
| 502 | ppwarning
|
---|
| 503 | = no_node_d
|
---|
| 504 | [
|
---|
| 505 | ch_p(T_PP_WARNING)
|
---|
| 506 | [ store_found_directive_t(self.found_directive) ]
|
---|
| 507 | >> *ppsp
|
---|
| 508 | ]
|
---|
| 509 | >> *( anychar_p -
|
---|
| 510 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
|
---|
| 511 | )
|
---|
| 512 | ;
|
---|
| 513 |
|
---|
| 514 | // #pragma ...
|
---|
| 515 | pppragma
|
---|
| 516 | = no_node_d
|
---|
| 517 | [
|
---|
| 518 | ch_p(T_PP_PRAGMA)
|
---|
| 519 | [ store_found_directive_t(self.found_directive) ]
|
---|
| 520 | ]
|
---|
| 521 | >> *( anychar_p -
|
---|
| 522 | (ch_p(T_NEWLINE) | ch_p(T_CPPCOMMENT) | ch_p(T_EOF))
|
---|
| 523 | )
|
---|
| 524 | ;
|
---|
| 525 |
|
---|
| 526 | ppqualifiedname
|
---|
| 527 | = no_node_d[*ppsp]
|
---|
| 528 | >> ( ch_p(T_IDENTIFIER)
|
---|
| 529 | | pattern_p(KeywordTokenType, TokenTypeMask)
|
---|
| 530 | | pattern_p(OperatorTokenType|AltExtTokenType,
|
---|
| 531 | ExtTokenTypeMask) // and, bit_and etc.
|
---|
| 532 | )
|
---|
| 533 | ;
|
---|
| 534 |
|
---|
| 535 | // auxiliary helper rules
|
---|
| 536 | ppsp // valid space in a line with a preprocessor directive
|
---|
| 537 | = ch_p(T_SPACE) | ch_p(T_CCOMMENT)
|
---|
| 538 | ;
|
---|
| 539 |
|
---|
| 540 | // end of line tokens
|
---|
| 541 | eol_tokens
|
---|
| 542 | = no_node_d
|
---|
| 543 | [
|
---|
| 544 | *ppsp
|
---|
| 545 | >> ( ch_p(T_NEWLINE)
|
---|
| 546 | [ store_pos_t(self.pos_of_newline) ]
|
---|
| 547 | | ch_p(T_CPPCOMMENT)
|
---|
| 548 | [ store_pos_t(self.pos_of_newline) ]
|
---|
| 549 | | ch_p(T_EOF)
|
---|
| 550 | [ store_pos_t(self.pos_of_newline) ]
|
---|
| 551 | [ store_found_eof_t(self.found_eof) ]
|
---|
| 552 | )
|
---|
| 553 | ]
|
---|
| 554 | ;
|
---|
| 555 |
|
---|
| 556 | BOOST_SPIRIT_DEBUG_TRACE_RULE(pp_statement, TRACE_CPP_GRAMMAR);
|
---|
| 557 | BOOST_SPIRIT_DEBUG_TRACE_RULE(include_file, TRACE_CPP_GRAMMAR);
|
---|
| 558 | BOOST_SPIRIT_DEBUG_TRACE_RULE(system_include_file, TRACE_CPP_GRAMMAR);
|
---|
| 559 | BOOST_SPIRIT_DEBUG_TRACE_RULE(macro_include_file, TRACE_CPP_GRAMMAR);
|
---|
| 560 | BOOST_SPIRIT_DEBUG_TRACE_RULE(plain_define, TRACE_CPP_GRAMMAR);
|
---|
| 561 | BOOST_SPIRIT_DEBUG_TRACE_RULE(macro_definition, TRACE_CPP_GRAMMAR);
|
---|
| 562 | BOOST_SPIRIT_DEBUG_TRACE_RULE(macro_parameters, TRACE_CPP_GRAMMAR);
|
---|
| 563 | BOOST_SPIRIT_DEBUG_TRACE_RULE(undefine, TRACE_CPP_GRAMMAR);
|
---|
| 564 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppifdef, TRACE_CPP_GRAMMAR);
|
---|
| 565 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppifndef, TRACE_CPP_GRAMMAR);
|
---|
| 566 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppif, TRACE_CPP_GRAMMAR);
|
---|
| 567 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppelse, TRACE_CPP_GRAMMAR);
|
---|
| 568 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppelif, TRACE_CPP_GRAMMAR);
|
---|
| 569 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppendif, TRACE_CPP_GRAMMAR);
|
---|
| 570 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppline, TRACE_CPP_GRAMMAR);
|
---|
| 571 | BOOST_SPIRIT_DEBUG_TRACE_RULE(pperror, TRACE_CPP_GRAMMAR);
|
---|
| 572 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppwarning, TRACE_CPP_GRAMMAR);
|
---|
| 573 | BOOST_SPIRIT_DEBUG_TRACE_RULE(illformed, TRACE_CPP_GRAMMAR);
|
---|
| 574 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppsp, TRACE_CPP_GRAMMAR);
|
---|
| 575 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppqualifiedname, TRACE_CPP_GRAMMAR);
|
---|
| 576 | #if BOOST_WAVE_SUPPORT_MS_EXTENSIONS != 0
|
---|
| 577 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppregion, TRACE_CPP_GRAMMAR);
|
---|
| 578 | BOOST_SPIRIT_DEBUG_TRACE_RULE(ppendregion, TRACE_CPP_GRAMMAR);
|
---|
| 579 | #endif
|
---|
| 580 | }
|
---|
| 581 |
|
---|
| 582 | // start rule of this grammar
|
---|
| 583 | rule_t const& start() const
|
---|
| 584 | { return pp_statement; }
|
---|
| 585 | };
|
---|
| 586 |
|
---|
| 587 | cpp_grammar_rule_ids &rule_ids;
|
---|
| 588 | PositionT &pos_of_newline;
|
---|
| 589 | bool &found_eof;
|
---|
| 590 | boost::wave::token_id &found_directive;
|
---|
| 591 |
|
---|
| 592 | cpp_grammar(cpp_grammar_rule_ids &rule_ids_, PositionT &pos_of_newline_,
|
---|
| 593 | bool &found_eof_, boost::wave::token_id &found_directive_)
|
---|
| 594 | : rule_ids(rule_ids_), pos_of_newline(pos_of_newline_),
|
---|
| 595 | found_eof(found_eof_), found_directive(found_directive_)
|
---|
| 596 | {
|
---|
| 597 | BOOST_SPIRIT_DEBUG_TRACE_GRAMMAR_NAME(*this, "cpp_grammar",
|
---|
| 598 | TRACE_CPP_GRAMMAR);
|
---|
| 599 | }
|
---|
| 600 |
|
---|
| 601 | #if BOOST_WAVE_DUMP_PARSE_TREE != 0
|
---|
| 602 | // helper function and data to get readable names of the rules known to us
|
---|
| 603 | struct map_ruleid_to_name :
|
---|
| 604 | public std::map<boost::spirit::parser_id, std::string>
|
---|
| 605 | {
|
---|
| 606 | typedef std::map<boost::spirit::parser_id, std::string> base_t;
|
---|
| 607 |
|
---|
| 608 | void init_rule_id_to_name_map(cpp_grammar const &self)
|
---|
| 609 | {
|
---|
| 610 | struct {
|
---|
| 611 | int parser_id;
|
---|
| 612 | char const *rule_name;
|
---|
| 613 | }
|
---|
| 614 | init_ruleid_name_map[] = {
|
---|
| 615 | { self.rule_ids.pp_statement_id, "pp_statement" },
|
---|
| 616 | { self.rule_ids.include_file_id, "include_file" },
|
---|
| 617 | { self.rule_ids.sysinclude_file_id, "system_include_file" },
|
---|
| 618 | { self.rule_ids.macroinclude_file_id, "macro_include_file" },
|
---|
| 619 | { self.rule_ids.plain_define_id, "plain_define" },
|
---|
| 620 | { self.rule_ids.macro_parameters_id, "macro_parameters" },
|
---|
| 621 | { self.rule_ids.macro_definition_id, "macro_definition" },
|
---|
| 622 | { self.rule_ids.undefine_id, "undefine" },
|
---|
| 623 | { self.rule_ids.ifdef_id, "ppifdef" },
|
---|
| 624 | { self.rule_ids.ifndef_id, "ppifndef" },
|
---|
| 625 | { self.rule_ids.if_id, "ppif" },
|
---|
| 626 | { self.rule_ids.elif_id, "ppelif" },
|
---|
| 627 | { self.rule_ids.else_id, "ppelse" },
|
---|
| 628 | { self.rule_ids.endif_id, "ppendif" },
|
---|
| 629 | { self.rule_ids.line_id, "ppline" },
|
---|
| 630 | { self.rule_ids.error_id, "pperror" },
|
---|
| 631 | { self.rule_ids.warning_id, "ppwarning" },
|
---|
| 632 | { self.rule_ids.pragma_id, "pppragma" },
|
---|
| 633 | { self.rule_ids.illformed_id, "illformed" },
|
---|
| 634 | { self.rule_ids.ppqualifiedname_id, "ppqualifiedname" },
|
---|
| 635 | #if BOOST_WAVE_SUPPORT_MS_EXTENSIONS != 0
|
---|
| 636 | { self.rule_ids.region_id, "ppregion" },
|
---|
| 637 | { self.rule_ids.endregion_id, "ppendregion" },
|
---|
| 638 | #endif
|
---|
| 639 | { 0 }
|
---|
| 640 | };
|
---|
| 641 |
|
---|
| 642 | // initialize parser_id to rule_name map
|
---|
| 643 | for (int i = 0; 0 != init_ruleid_name_map[i].parser_id; ++i)
|
---|
| 644 | base_t::insert(base_t::value_type(
|
---|
| 645 | boost::spirit::parser_id(init_ruleid_name_map[i].parser_id),
|
---|
| 646 | std::string(init_ruleid_name_map[i].rule_name))
|
---|
| 647 | );
|
---|
| 648 | }
|
---|
| 649 | };
|
---|
| 650 | mutable map_ruleid_to_name map_rule_id_to_name;
|
---|
| 651 | #endif // WAVE_DUMP_PARSE_TREE != 0
|
---|
| 652 | };
|
---|
| 653 |
|
---|
| 654 | ///////////////////////////////////////////////////////////////////////////////
|
---|
| 655 | #undef TRACE_CPP_GRAMMAR
|
---|
| 656 |
|
---|
| 657 | ///////////////////////////////////////////////////////////////////////////////
|
---|
| 658 | //
|
---|
| 659 | // The following parse function is defined here, to allow the separation of
|
---|
| 660 | // the compilation of the cpp_grammar from the function using it.
|
---|
| 661 | //
|
---|
| 662 | ///////////////////////////////////////////////////////////////////////////////
|
---|
| 663 |
|
---|
| 664 | #if BOOST_WAVE_SEPARATE_GRAMMAR_INSTANTIATION != 0
|
---|
| 665 | #define BOOST_WAVE_GRAMMAR_GEN_INLINE
|
---|
| 666 | #else
|
---|
| 667 | #define BOOST_WAVE_GRAMMAR_GEN_INLINE inline
|
---|
| 668 | #endif
|
---|
| 669 |
|
---|
| 670 | namespace {
|
---|
| 671 |
|
---|
| 672 | char const *get_directivename(boost::wave::token_id id)
|
---|
| 673 | {
|
---|
| 674 | using namespace boost::wave;
|
---|
| 675 | switch (static_cast<unsigned int>(id)) {
|
---|
| 676 | case T_PP_QHEADER:
|
---|
| 677 | case T_PP_HHEADER:
|
---|
| 678 | case T_PP_INCLUDE: return "#include";
|
---|
| 679 | case T_PP_DEFINE: return "#define";
|
---|
| 680 | case T_PP_UNDEF: return "#undef";
|
---|
| 681 | case T_PP_IFDEF: return "#ifdef";
|
---|
| 682 | case T_PP_IFNDEF: return "#ifndef";
|
---|
| 683 | case T_PP_IF: return "#if";
|
---|
| 684 | case T_PP_ELSE: return "#else";
|
---|
| 685 | case T_PP_ELIF: return "#elif";
|
---|
| 686 | case T_PP_ENDIF: return "#endif";
|
---|
| 687 | case T_PP_LINE: return "#line";
|
---|
| 688 | case T_PP_ERROR: return "#error";
|
---|
| 689 | case T_PP_WARNING: return "#warning";
|
---|
| 690 | case T_PP_PRAGMA: return "#pragma";
|
---|
| 691 | default:
|
---|
| 692 | return "#unknown directive";
|
---|
| 693 | }
|
---|
| 694 | }
|
---|
| 695 | }
|
---|
| 696 |
|
---|
| 697 | template <typename LexIteratorT>
|
---|
| 698 | BOOST_WAVE_GRAMMAR_GEN_INLINE
|
---|
| 699 | boost::spirit::tree_parse_info<LexIteratorT>
|
---|
| 700 | cpp_grammar_gen<LexIteratorT>::parse_cpp_grammar (
|
---|
| 701 | LexIteratorT const &first, LexIteratorT const &last,
|
---|
| 702 | bool &found_eof_, position_type const &act_pos)
|
---|
| 703 | {
|
---|
| 704 | using namespace boost::spirit;
|
---|
| 705 | using namespace boost::wave;
|
---|
| 706 |
|
---|
| 707 | pos_of_newline = position_type(); // reset position
|
---|
| 708 | found_eof = false; // reset flag
|
---|
| 709 | found_directive = T_EOF; // reset found directive
|
---|
| 710 |
|
---|
| 711 | cpp_grammar<position_type> g(
|
---|
| 712 | rule_ids, pos_of_newline, found_eof, found_directive);
|
---|
| 713 |
|
---|
| 714 | tree_parse_info<LexIteratorT> hit = pt_parse (first, last, g);
|
---|
| 715 |
|
---|
| 716 | #if BOOST_WAVE_DUMP_PARSE_TREE != 0
|
---|
| 717 | if (hit.match) {
|
---|
| 718 | tree_to_xml (BOOST_WAVE_DUMP_PARSE_TREE_OUT, hit.trees, "",
|
---|
| 719 | g.map_rule_id_to_name, &token_type::get_token_id,
|
---|
| 720 | &token_type::get_token_value);
|
---|
| 721 | }
|
---|
| 722 | #endif
|
---|
| 723 |
|
---|
| 724 | if (!hit.match && found_directive != T_EOF) {
|
---|
| 725 | // recognized invalid directive
|
---|
| 726 | std::string directive = get_directivename(found_directive);
|
---|
| 727 |
|
---|
| 728 | BOOST_WAVE_THROW(preprocess_exception, ill_formed_directive,
|
---|
| 729 | directive.c_str(), act_pos);
|
---|
| 730 | }
|
---|
| 731 |
|
---|
| 732 | found_eof_ = found_eof;
|
---|
| 733 | return hit;
|
---|
| 734 | }
|
---|
| 735 |
|
---|
| 736 | #undef BOOST_WAVE_GRAMMAR_GEN_INLINE
|
---|
| 737 |
|
---|
| 738 | ///////////////////////////////////////////////////////////////////////////////
|
---|
| 739 | } // namespace grammars
|
---|
| 740 | } // namespace wave
|
---|
| 741 | } // namespace boost
|
---|
| 742 |
|
---|
| 743 | #endif // !defined(CPP_GRAMMAR_HPP_FEAEBC2E_2734_428B_A7CA_85E5A415E23E_INCLUDED)
|
---|