wave/samples/waveidl/instantiate_re2c_lexer_str.cpp
Hartmut Kaiser 9fd423ca58 Wave: merging from trunk
[SVN r58724]
2010-01-05 18:46:09 +00:00

51 lines
1.9 KiB
C++

/*=============================================================================
Boost.Wave: A Standard compliant C++ preprocessor library
Sample: IDL oriented preprocessor
Explicit instantiation of the lex_functor generation function
http://www.boost.org/
Copyright (c) 2001-2010 Hartmut Kaiser. Distributed under the Boost
Software License, Version 1.0. (See accompanying file
LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#include "idl.hpp"
#if BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION != 0
#include <string>
#include <boost/wave/token_ids.hpp>
#include <boost/wave/cpplexer/cpp_lex_token.hpp>
#include "idllexer/idl_lex_iterator.hpp"
///////////////////////////////////////////////////////////////////////////////
// The following file needs to be included only once throughout the whole
// program.
#include "idllexer/idl_re2c_lexer.hpp"
///////////////////////////////////////////////////////////////////////////////
//
// If you've used another iterator type as std::string::iterator, you have to
// instantiate the new_lexer_gen<> template for this iterator type too.
// The reason is, that the library internally uses the new_lexer_gen<>
// template with a std::string::iterator. (You just have to undefine the
// following line.)
//
// This is moved into a separate compilation unit to decouple the compilation
// of the C++ lexer from the compilation of the other modules, which helps to
// reduce compilation time.
//
// The template parameter(s) supplied should be identical to the first
// parameter supplied while instantiating the boost::wave::context<> template
// (see the file cpp.cpp).
//
///////////////////////////////////////////////////////////////////////////////
template struct boost::wave::idllexer::new_lexer_gen<std::string::iterator>;
#endif // BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION != 0