[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_DEFINED_GRAMMAR_HPP_F48287B2_DC67_40A8_B4A1_800EFBD67869_INCLUDED)
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| 12 | #define CPP_DEFINED_GRAMMAR_HPP_F48287B2_DC67_40A8_B4A1_800EFBD67869_INCLUDED
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| 13 |
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| 14 | #include <boost/assert.hpp>
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| 15 | #include <boost/spirit/core.hpp>
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| 16 | #include <boost/spirit/attribute/closure.hpp>
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| 17 | #if SPIRIT_VERSION >= 0x1700
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| 18 | #include <boost/spirit/actor/assign_actor.hpp>
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| 19 | #include <boost/spirit/actor/push_back_actor.hpp>
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| 20 | #endif // SPIRIT_VERSION >= 0x1700
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| 21 |
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| 22 | #include <boost/wave/wave_config.hpp>
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| 23 | #include <boost/wave/token_ids.hpp>
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| 24 | #include <boost/wave/util/pattern_parser.hpp>
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| 25 | #include <boost/wave/grammars/cpp_defined_grammar_gen.hpp>
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| 26 |
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| 27 | #if !defined(spirit_append_actor)
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| 28 | #if SPIRIT_VERSION >= 0x1700
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| 29 | #define spirit_append_actor(actor) boost::spirit::push_back_a(actor)
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| 30 | #define spirit_assign_actor(actor) boost::spirit::assign_a(actor)
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| 31 | #else
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| 32 | #define spirit_append_actor(actor) boost::spirit::append(actor)
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| 33 | #define spirit_assign_actor(actor) boost::spirit::assign(actor)
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| 34 | #endif // SPIRIT_VERSION >= 0x1700
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| 35 | #endif // !defined(spirit_append_actor)
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| 36 |
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| 37 | ///////////////////////////////////////////////////////////////////////////////
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| 38 | namespace boost {
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| 39 | namespace wave {
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| 40 | namespace grammars {
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| 41 |
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| 42 | ///////////////////////////////////////////////////////////////////////////////
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| 43 | // define, whether the rule's should generate some debug output
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| 44 | #define TRACE_CPP_DEFINED_GRAMMAR \
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| 45 | bool(BOOST_SPIRIT_DEBUG_FLAGS_CPP & BOOST_SPIRIT_DEBUG_FLAGS_DEFINED_GRAMMAR) \
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| 46 | /**/
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| 47 |
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| 48 | template <typename ContainerT>
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| 49 | struct defined_grammar :
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| 50 | public boost::spirit::grammar<defined_grammar<ContainerT> >
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| 51 | {
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| 52 | defined_grammar(ContainerT &result_seq_)
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| 53 | : result_seq(result_seq_)
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| 54 | {
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| 55 | BOOST_SPIRIT_DEBUG_TRACE_GRAMMAR_NAME(*this, "defined_grammar",
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| 56 | TRACE_CPP_DEFINED_GRAMMAR);
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| 57 | }
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| 58 |
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| 59 | template <typename ScannerT>
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| 60 | struct definition
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| 61 | {
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| 62 | typedef boost::spirit::rule<ScannerT> rule_t;
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| 63 |
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| 64 | rule_t defined_op;
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| 65 | rule_t identifier;
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| 66 |
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| 67 | definition(defined_grammar const &self)
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| 68 | {
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| 69 | using namespace boost::spirit;
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| 70 | using namespace boost::wave;
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| 71 | using namespace boost::wave::util;
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| 72 |
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| 73 | defined_op // parens not required, see C++ standard 16.1.1
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| 74 | = ch_p(T_IDENTIFIER) // token contains 'defined'
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| 75 | >> (
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| 76 | ( ch_p(T_LEFTPAREN)
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| 77 | >> identifier
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| 78 | >> ch_p(T_RIGHTPAREN)
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| 79 | )
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| 80 | | identifier
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| 81 | )
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| 82 | ;
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| 83 |
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| 84 | identifier
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| 85 | = ch_p(T_IDENTIFIER)
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| 86 | [
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| 87 | spirit_append_actor(self.result_seq)
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| 88 | ]
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| 89 | | pattern_p(KeywordTokenType, TokenTypeMask)
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| 90 | [
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| 91 | spirit_append_actor(self.result_seq)
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| 92 | ]
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| 93 | | pattern_p(OperatorTokenType|AltExtTokenType, ExtTokenTypeMask)
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| 94 | [
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| 95 | spirit_append_actor(self.result_seq)
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| 96 | ]
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| 97 | ;
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| 98 |
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| 99 | BOOST_SPIRIT_DEBUG_TRACE_RULE(defined_op, TRACE_CPP_DEFINED_GRAMMAR);
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| 100 | BOOST_SPIRIT_DEBUG_TRACE_RULE(identifier, TRACE_CPP_DEFINED_GRAMMAR);
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| 101 | }
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| 102 |
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| 103 | // start rule of this grammar
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| 104 | rule_t const& start() const
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| 105 | { return defined_op; }
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| 106 | };
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| 107 |
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| 108 | ContainerT &result_seq;
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| 109 | };
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| 110 |
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| 111 | ///////////////////////////////////////////////////////////////////////////////
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| 112 | #undef TRACE_CPP_DEFINED_GRAMMAR
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| 113 |
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| 114 | ///////////////////////////////////////////////////////////////////////////////
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| 115 | //
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| 116 | // The following parse function is defined here, to allow the separation of
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| 117 | // the compilation of the defined_grammar from the function
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| 118 | // using it.
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| 119 | //
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| 120 | ///////////////////////////////////////////////////////////////////////////////
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| 121 |
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| 122 | #if BOOST_WAVE_SEPARATE_GRAMMAR_INSTANTIATION != 0
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| 123 | #define BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE
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| 124 | #else
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| 125 | #define BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE inline
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| 126 | #endif
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| 127 |
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| 128 | // The parse_operator_define function is instantiated manually twice to
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| 129 | // simplify the explicit specialization of this template. This way the user
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| 130 | // has only to specify one template parameter (the lexer type) to correctly
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| 131 | // formulate the required explicit specialization.
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| 132 | // This results in no code overhead, because otherwise the function would be
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| 133 | // generated by the compiler twice anyway.
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| 134 |
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| 135 | template <typename LexIteratorT>
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| 136 | BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE
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| 137 | boost::spirit::parse_info<
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| 138 | typename defined_grammar_gen<LexIteratorT>::iterator1_t
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| 139 | >
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| 140 | defined_grammar_gen<LexIteratorT>::parse_operator_defined (
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| 141 | iterator1_t const &first, iterator1_t const &last,
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| 142 | token_sequence_type &found_qualified_name)
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| 143 | {
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| 144 | using namespace boost::spirit;
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| 145 | using namespace boost::wave;
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| 146 |
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| 147 | defined_grammar<token_sequence_type> g(found_qualified_name);
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| 148 | return boost::spirit::parse (
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| 149 | first, last, g, ch_p(T_SPACE) | ch_p(T_CCOMMENT));
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| 150 | }
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| 151 |
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| 152 | template <typename LexIteratorT>
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| 153 | BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE
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| 154 | boost::spirit::parse_info<
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| 155 | typename defined_grammar_gen<LexIteratorT>::iterator2_t
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| 156 | >
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| 157 | defined_grammar_gen<LexIteratorT>::parse_operator_defined (
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| 158 | iterator2_t const &first, iterator2_t const &last,
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| 159 | token_sequence_type &found_qualified_name)
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| 160 | {
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| 161 | using namespace boost::spirit;
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| 162 | using namespace boost::wave;
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| 163 |
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| 164 | defined_grammar<token_sequence_type> g(found_qualified_name);
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| 165 | return boost::spirit::parse (
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| 166 | first, last, g, ch_p(T_SPACE) | ch_p(T_CCOMMENT));
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| 167 | }
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| 168 |
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| 169 | #undef BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE
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| 170 |
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| 171 | ///////////////////////////////////////////////////////////////////////////////
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| 172 | } // namespace grammars
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| 173 | } // namespace wave
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| 174 | } // namespace boost
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| 175 |
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| 176 | #endif // !defined(CPP_DEFINED_GRAMMAR_HPP_F48287B2_DC67_40A8_B4A1_800EFBD67869_INCLUDED)
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