Wave: a Standard conformant C++ preprocessor library

Hartmut Kaiser

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10 Jan 200413 min read

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Describes a free and fully Standard conformant C++ preprocessor library

wave_preprocessor_src.zip
- wave
  - doc
    - acknowledgements.html
    - class_reference_context.html
    - class_reference_fileposition.html
    - class_reference_inputpolicy.html
    - class_reference_lexer.html
    - class_reference_tokentype.html
    - class_reference_tracepolicy.html
    - compiletime_config.html
    - index.html
    - introduction.html
    - macro_expansion_process.html
    - predefined_macros.html
    - preface.html
    - preliminary_cpp0x_support.html
    - quickstart.html
    - references.html
    - supported_pragmas.html
    - theme
      - bkd.gif
      - bkd2.gif
      - bullet.gif
      - l_arr.gif
      - l_arr_disabled.gif
      - r_arr.gif
      - r_arr_disabled.gif
      - style.css
      - u_arr.gif
      - uc.gif
      - wave.gif
    - token_ids.html
    - tracing_facility.html
    - wave_driver.html
  - test
    - boost-build.jam
    - cpp_tokens
    - Jamfile.v2
    - list_includes
    - project-root.jam
    - wave.vcproj
    - wave
      - cpp.cpp
      - cpp.hpp
      - cpp_config.hpp
      - cpp_version.hpp
      - instantiate_cpp_exprgrammar.cpp
      - instantiate_cpp_grammar.cpp
      - instantiate_cpp_literalgrammars.cpp
      - instantiate_defined_grammar.cpp
      - instantiate_predef_macros.cpp
      - instantiate_re2c_idllexer.cpp
      - instantiate_re2c_lexer.cpp
      - instantiate_slex_lexer.cpp
      - Jamfile
      - Jamfile.v2
      - runtests.sh
      - test_files
        
        scope1.cpp
        
        scope10.cpp
        
        scope11.cpp
        
        scope12.cpp
        
        scope13.cpp
        
        scope14.cpp
        
        scope15.cpp
        
        scope16.cpp
        
        scope17.cpp
        
        scope18.cpp
        
        scope19.cpp
        
        scope2.cpp
        
        scope20.cpp
        
        scope21.cpp
        
        scope22.cpp
        
        scope23.cpp
        
        scope24.cpp
        
        scope25.cpp
        
        scope26.cpp
        
        scope27.cpp
        
        scope3.cpp
        
        scope4.cpp
        
        scope5.cpp
        
        scope6.cpp
        
        scope7.cpp
        
        scope8.cpp
        
        scope9.cpp
        
        test1.cpp
        
        test10.cpp
        
        test11.cpp
        
        test12.cpp
        
        test13.cpp
        
        test14.cpp
        
        test15.cpp
        
        test16.cpp
        
        test17.cpp
        
        test18.cpp
        
        test19.cpp
        
        test2.cpp
        
        test20.cpp
        
        test21.cpp
        
        test22.cpp
        
        test23.cpp
        
        test24.cpp
        
        test25.cpp
        
        test26.cpp
        
        test27.cpp
        
        test28.cpp
        
        test29.cpp
        
        test3.cpp
        
        test30.cpp
        
        test31.cpp
        
        test32.cpp
        
        test33.cpp
        
        test34.cpp
        
        test35.cpp
        
        test36.cpp
        
        test37.cpp
        
        test38.cpp
        
        test39.cpp
        
        test4.cpp
        
        test40.cpp
        
        test41.cpp
        
        test41_0.hpp
        
        test41_1.hpp
        
        test42.cpp
        
        test43.cpp
        
        test44.cpp
        
        test45.cpp
        
        test46.cpp
        
        test47.cpp
        
        test48.cpp
        
        test49.cpp
        
        test5.cpp
        
        test50.cpp
        
        test51.cpp
        
        test52.cpp
        
        test53.cpp
        
        test54.cpp
        
        test55.cpp
        
        test56.cpp
        
        test57.cpp
        
        test58.cpp
        
        test59.cpp
        
        test6.cpp
        
        test60.cpp
        
        test61.cpp
        
        test62.cpp
        
        test63.cpp
        
        test64.cpp
        
        test65.cpp
        
        test66.cpp
        
        test67.cpp
        
        test68.cpp
        
        test69.cpp
        
        test7.cpp
        
        test70.cpp
        
        test71.cpp
        
        test72.cpp
        
        test73.cpp
        
        test74.cpp
        
        test75.cpp
        
        test76.cpp
        
        test77.cpp
        
        test78.cpp
        
        test79.cpp
        
        test8.cpp
        
        test9.cpp
      - trace_macro_expansion.hpp
  - wave
    - cpp_context.hpp
    - cpp_exceptions.hpp
    - cpp_iteration_context.hpp
    - cpplexer
      - cpp_lex_interface.hpp
      - cpp_lex_iterator.hpp
      - cpp_lex_token.hpp
      - cpp_token_ids.hpp
      - cpplexer_exceptions.hpp
      - macro_scoping_tokens.hpp
      - re2c_functor.hpp
      - re2clex
        
        aq.cpp
        
        aq.hpp
        
        cpp.re
        
        cpp.re.cpp
        
        cpp_re2c_lexer.hpp
        
        scanner.hpp
        
        test
        
        lextest.in
        
        lextest.output
        
        run_tests.sh
        
        test_lexer.c
        
        test_lexer.in
        
        test_lexer.output
      - slex
        
        cpp_slex_lexer.hpp
      - slex_functor.hpp
      - test
        
        instantiate_re2c_lexer.cpp
        
        instantiate_slex_lexer.cpp
        
        lextest.in
        
        lextest.re2c.output
        
        lextest.slex.output
        
        run_tests.sh
        
        test_re2c_lexer.cpp
        
        test_re2c_lexer.hpp
        
        test_slex_lexer.cpp
        
        test_slex_lexer.hpp
      - validate_universal_char.hpp
    - grammars
    - idllexer
      - idl_lex_interface.hpp
      - idl_lex_iterator.hpp
      - idl_lex_token.hpp
      - idl_token_ids.hpp
      - re2clex
        
        aq.cpp
        
        aq.hpp
        
        idl.re
        
        idl.re.cpp
        
        idl_re2c_lexer.hpp
        
        scanner.hpp
    - language_support.hpp
    - lex_iterator.hpp
    - lex_token.hpp
    - token_ids.hpp
    - trace_policies.hpp
    - util
    - wave.hpp
    - wave_version.hpp
wave_preprocessor_demo.zip
- wave.exe
wave_preprocessor_src1.zip
- acknowledgements.html
- class_reference_context.html
- class_reference_fileposition.html
- class_reference_inputpolicy.html
- class_reference_lexer.html
- class_reference_tokentype.html
- class_reference_tracepolicy.html
- compiletime_config.html
- index.html
- introduction.html
- macro_expansion_process.html
- predefined_macros.html
- preface.html
- preliminary_cpp0x_support.html
- quickstart.html
- references.html
- supported_pragmas.html
- bkd.gif
- bkd2.gif
- bullet.gif
- l_arr.gif
- l_arr_disabled.gif
- r_arr.gif
- r_arr_disabled.gif
- style.css
- u_arr.gif
- uc.gif
- wave.gif
- token_ids.html
- tracing_facility.html
- wave_driver.html
- boost-build.jam
- cpp_tokens.cpp
- cpp_tokens_config.hpp
- instantiate_cpp_exprgrammar.cpp
- instantiate_cpp_grammar.cpp
- instantiate_cpp_literalgrammars.cpp
- instantiate_re2c_lexer.cpp
- instantiate_slex_lexer.cpp
- Jamfile.v2
- instantiate_cpp_exprgrammar.cpp
- instantiate_cpp_grammar.cpp
- instantiate_cpp_literalgrammars.cpp
- instantiate_re2c_lexer.cpp
- instantiate_slex_lexer.cpp
- list_includes.cpp
- list_includes.hpp
- list_includes_version.hpp
- Readme.txt
- project-root.jam
- wave.vcproj
- cpp.cpp
- cpp.hpp
- cpp_config.hpp
- cpp_version.hpp
- instantiate_cpp_exprgrammar.cpp
- instantiate_cpp_grammar.cpp
- instantiate_cpp_literalgrammars.cpp
- instantiate_defined_grammar.cpp
- instantiate_predef_macros.cpp
- instantiate_re2c_lexer.cpp
- instantiate_slex_lexer.cpp
- Jamfile
- Jamfile.v2
- runtests.sh
- test1.cpp
- test10.cpp
- test11.cpp
- test12.cpp
- test13.cpp
- test14.cpp
- test15.cpp
- test16.cpp
- test17.cpp
- test18.cpp
- test19.cpp
- test2.cpp
- test20.cpp
- test21.cpp
- test22.cpp
- test23.cpp
- test24.cpp
- test25.cpp
- test26.cpp
- test27.cpp
- test28.cpp
- test29.cpp
- test3.cpp
- test30.cpp
- test31.cpp
- test32.cpp
- test33.cpp
- test4.cpp
- test5.cpp
- test6.cpp
- test7.cpp
- test8.cpp
- test9.cpp
- trace_macro_expansion.hpp
- cpp_context.hpp
- cpp_exceptions.hpp
- cpp_iteration_context.hpp
- cpp_lex_interface.hpp
- cpp_lex_iterator.hpp
- cpp_lex_token.hpp
- cpp_token_ids.hpp
- cpplexer_exceptions.hpp
- macro_scoping_tokens.hpp
- re2c_functor.hpp
- aq.cpp
- aq.hpp
- cpp.re
- cpp.re.cpp
- cpp_re2c_lexer.hpp
- scanner.hpp
- lextest.in
- lextest.output
- run_tests.sh
- test_lexer.c
- test_lexer.in
- test_lexer.output
- cpp_slex_lexer.hpp
- slex_functor.hpp
- instantiate_re2c_lexer.cpp
- instantiate_slex_lexer.cpp
- lextest.in
- lextest.re2c.output
- lextest.slex.output
- run_tests.sh
- test_re2c_lexer.cpp
- test_re2c_lexer.hpp
- test_slex_lexer.cpp
- test_slex_lexer.hpp
- validate_universal_char.hpp
- cpp_chlit_grammar.hpp
- cpp_defined_grammar.hpp
- cpp_defined_grammar_gen.hpp
- cpp_expression_grammar.hpp
- cpp_expression_grammar_gen.hpp
- cpp_floatlit_grammar.hpp
- cpp_grammar.hpp
- cpp_grammar_gen.hpp
- cpp_intlit_grammar.hpp
- cpp_literal_grammar_gen.hpp
- cpp_predef_macros_gen.hpp
- cpp_predef_macros_grammar.hpp
- language_support.hpp
- macro_trace_policies.hpp
- cpp_ifblock.hpp
- cpp_include_pathes.hpp
- cpp_iterator.hpp
- cpp_macromap.hpp
- eat_whitespace.hpp
- file_position.hpp
- flex_string.hpp
- insert_whitespace_detection.hpp
- interpret_pragma.hpp
- iteration_context.hpp
- macro_definition.hpp
- macro_helpers.hpp
- pattern_parser.hpp
- symbol_table.hpp
- time_conversion_helper.hpp
- transform_iterator.hpp
- unput_queue_iterator.hpp
- wave_version.hpp
wave_preprocessor_demo1.zip
- wave.exe

/*=============================================================================
    Wave: A Standard compliant C++ preprocessor

    Definition of the various language support constants
    
    Copyright (c) 2001-2003 Hartmut Kaiser
    http://spirit.sourceforge.net/

    Permission to copy, use, modify, sell and distribute this software
    is granted provided this copyright notice appears in all copies.
    This software is provided "as is" without express or implied
    warranty, and with no claim as to its suitability for any purpose.

    See Copyright.txt for full copyright notices and acknowledgements.
=============================================================================*/
#if !defined(LANGUAGE_SUPPORT_HPP_93EDD057_2DEF_44BC_BC9F_FDABB9F51AFA_INCLUDED)
#define LANGUAGE_SUPPORT_HPP_93EDD057_2DEF_44BC_BC9F_FDABB9F51AFA_INCLUDED

///////////////////////////////////////////////////////////////////////////////
namespace wave {

enum language_support {
//  support flags for C++98
    support_normal = 0x01,
    support_cpp = support_normal,
    
#if defined(WAVE_SUPPORT_VARIADICS_PLACEMARKERS)
//  support flags for C99
    support_variadics = 0x02,
    support_c99 = support_variadics,
    
#if defined(WAVE_ENABLE_CPP0X_EXTENSIONS)
//  support flags for the experimental C++0x features
    support_extensions = 0x04,
    support_cpp0x = support_normal | support_variadics | support_extensions,
#endif // defined(WAVE_ENABLE_CPP0X_EXTENSIONS)
#endif // defined(WAVE_SUPPORT_VARIADICS_PLACEMARKERS)
};

///////////////////////////////////////////////////////////////////////////////
//  
//  need_cpp
//
//      Extract, if the language to support is C++98
//
///////////////////////////////////////////////////////////////////////////////
inline bool
need_cpp(language_support language) 
{
    return language == support_cpp;
}

#if defined(WAVE_SUPPORT_VARIADICS_PLACEMARKERS)

///////////////////////////////////////////////////////////////////////////////
//  
//  need_variadics
//
//      Extract, if the language to support needs variadics support
//
///////////////////////////////////////////////////////////////////////////////
inline bool 
need_variadics(language_support language) 
{
    return language & support_variadics;
}

///////////////////////////////////////////////////////////////////////////////
//  
//  enable_variadics
//
//      Set variadics support in the language to support
//
///////////////////////////////////////////////////////////////////////////////
inline language_support
enable_variadics(language_support language, bool enable = true)
{
    if (enable)
        return static_cast<language_support>(language | support_variadics);
    return static_cast<language_support>(language & ~support_variadics);
}

///////////////////////////////////////////////////////////////////////////////
//  
//  need_c99
//
//      Extract, if the language to support is C99
//
///////////////////////////////////////////////////////////////////////////////
inline bool
need_c99(language_support language) 
{
    return language == support_c99;
}

///////////////////////////////////////////////////////////////////////////////
//  
//  enable_c99
//
//      Set, whether to support C99 (alternatively C++98 is supported)
//
///////////////////////////////////////////////////////////////////////////////
inline language_support
enable_c99(bool enable = true)
{
    return enable ? support_c99 : support_normal;
}

#if defined(WAVE_ENABLE_CPP0X_EXTENSIONS)
///////////////////////////////////////////////////////////////////////////////
//  
//  need_cpp0x
//
//      Extract, if the language to support is C++0x
//
///////////////////////////////////////////////////////////////////////////////
inline bool
need_cpp0x(language_support language) 
{
    return language == support_cpp0x;
}

///////////////////////////////////////////////////////////////////////////////
//  
//  enable_c99
//
//      Set, whether to support the C++0x features (alternatively C++98 is 
//      supported)
//
///////////////////////////////////////////////////////////////////////////////
inline language_support
enable_cpp0x(bool enable = true)
{
    return enable ? support_cpp0x : support_normal;
}

#endif // defined(WAVE_ENABLE_CPP0X_EXTENSIONS)
#endif // defined(WAVE_SUPPORT_VARIADICS_PLACEMARKERS)

///////////////////////////////////////////////////////////////////////////////
}   // namespace wave

#endif // !defined(LANGUAGE_SUPPORT_HPP_93EDD057_2DEF_44BC_BC9F_FDABB9F51AFA_INCLUDED)

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Written By

Hartmut Kaiser

United States

Actively involved in Boost and the development of the Spirit parser construction framework.

Wave: a Standard conformant C++ preprocessor library

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