Wave: a Standard conformant C++ preprocessor library

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

    Copyright (c) 2001-2004 Hartmut Kaiser
    http://spirit.sourceforge.net/

    Use, modification and distribution is subject to 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)

    See Copyright.txt for full acknowledgements.
=============================================================================*/

#if !defined(CPP_DEFINED_GRAMMAR_GEN_HPP_825BE9F5_98A3_400D_A97C_AD76B3B08632_INCLUDED)
#define CPP_DEFINED_GRAMMAR_GEN_HPP_825BE9F5_98A3_400D_A97C_AD76B3B08632_INCLUDED

#include <list>
#include <boost/spirit/core/parser.hpp>
#include <boost/pool/pool_alloc.hpp>

#include "wave/lex_iterator.hpp"
#include "wave/util/unput_queue_iterator.hpp"

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

template <typename TokenT>
struct defined_grammar_gen
{
    typedef std::list<TokenT, boost::fast_pool_allocator<TokenT> >
        token_sequence_t;

//  The parse_operator_define function is instantiated manually twice to 
//  simplify the explicit specialization of this template. This way the user 
//  has only to specify one template parameter (the token type) to correctly
//  formulate the required explicit specialization.
//  This results in no code overhead, because otherwise the function would be
//  generated by the compiler twice anyway.

    typedef wave::util::unput_queue_iterator<
            typename token_sequence_t::iterator, TokenT, token_sequence_t>
        iterator1_t;

    typedef wave::util::unput_queue_iterator<
            WAVE_LEXER_NS::lex_iterator<TokenT>, TokenT, token_sequence_t>
        iterator2_t;
        
//  parse the operator defined and return the found qualified name
    static boost::spirit::parse_info<iterator1_t> 
    parse_operator_defined (iterator1_t const &first, iterator1_t const &last,
        token_sequence_t &found_qualified_name);

    static boost::spirit::parse_info<iterator2_t> 
    parse_operator_defined (iterator2_t const &first, iterator2_t const &last,
        token_sequence_t &found_qualified_name);
};

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

#endif // !defined(CPP_DEFINED_GRAMMAR_GEN_HPP_825BE9F5_98A3_400D_A97C_AD76B3B08632_INCLUDED)