Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2001-2003 Joel de Guzman
Chris@16:     http://spirit.sourceforge.net/
Chris@16: 
Chris@16:     Use, modification and distribution is subject to the Boost Software
Chris@16:     License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:     http://www.boost.org/LICENSE_1_0.txt)
Chris@16: =============================================================================*/
Chris@16: #ifndef BOOST_SPIRIT_SYMBOLS_IPP
Chris@16: #define BOOST_SPIRIT_SYMBOLS_IPP
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: #include <boost/spirit/home/classic/symbols/impl/tst.ipp>
Chris@16: #include <boost/detail/workaround.hpp>
Chris@16: 
Chris@16: // MSVC: void warning about the use of 'this' pointer in constructors
Chris@16: #if defined(BOOST_MSVC)
Chris@16: #pragma warning(push)
Chris@16: #pragma warning(disable : 4355)
Chris@16: #endif
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: namespace boost { namespace spirit {
Chris@16: 
Chris@16: BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: //  symbols class implementation
Chris@16: //
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: template <typename T, typename CharT, typename SetT>
Chris@16: inline symbols<T, CharT, SetT>::symbols()
Chris@16: : SetT()
Chris@16: , add(*this)
Chris@16: {
Chris@16: }
Chris@16: 
Chris@16: //////////////////////////////////
Chris@16: template <typename T, typename CharT, typename SetT>
Chris@16: symbols<T, CharT, SetT>::symbols(symbols const& other)
Chris@16: : SetT(other)
Chris@16: // Tru64 CXX seems to be confused by the explicit call of the default
Chris@16: // constructor and generates wrong code which invalidates the just contructed
Chris@16: // first base class in the line above.
Chris@16: #if !BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590041))
Chris@16: , parser<symbols<T, CharT, SetT> >()
Chris@16: #endif
Chris@16: , add(*this)
Chris@16: {
Chris@16: }
Chris@16: 
Chris@16: //////////////////////////////////
Chris@16: template <typename T, typename CharT, typename SetT>
Chris@16: inline symbols<T, CharT, SetT>::~symbols()
Chris@16: {}
Chris@16: 
Chris@16: //////////////////////////////////
Chris@16: template <typename T, typename CharT, typename SetT>
Chris@16: inline symbols<T, CharT, SetT>&
Chris@16: symbols<T, CharT, SetT>::operator=(symbols const& other)
Chris@16: {
Chris@16:     SetT::operator=(other);
Chris@16:     return *this;
Chris@16: }
Chris@16: 
Chris@16: //////////////////////////////////
Chris@16: template <typename T, typename CharT, typename SetT>
Chris@16: inline symbol_inserter<T, SetT> const&
Chris@16: symbols<T, CharT, SetT>::operator=(CharT const* str)
Chris@16: {
Chris@16:     return add, str;
Chris@16: }
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: //  Symbol table utilities
Chris@16: //
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: template <typename T, typename CharT, typename SetT>
Chris@16: inline T*
Chris@16: find(symbols<T, CharT, SetT> const& table, CharT const* sym)
Chris@16: {
Chris@16:     CharT const* last = sym;
Chris@16:     while (*last)
Chris@16:         last++;
Chris@16:     scanner<CharT const *> scan(sym, last);
Chris@16:     T* result = table.find(scan);
Chris@16:     return scan.at_end()? result: 0;
Chris@16: }
Chris@16: 
Chris@16: //////////////////////////////////
Chris@16: template <typename T, typename CharT, typename SetT>
Chris@16: inline T*
Chris@16: add(symbols<T, CharT, SetT>& table, CharT const* sym, T const& data)
Chris@16: {
Chris@16:     CharT const* first = sym;
Chris@16:     CharT const* last = sym;
Chris@16:     while (*last)
Chris@16:         last++;
Chris@16:     scanner<CharT const *> scan(first, last);
Chris@16:     if (table.find(scan) && scan.at_end())
Chris@16:         return 0;               // symbol already contained in symbol table
Chris@16:     table.add(sym, last, data);
Chris@16:     first = sym;
Chris@16:     return table.find(scan);    // refind the inserted symbol
Chris@16: }
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: BOOST_SPIRIT_CLASSIC_NAMESPACE_END
Chris@16: 
Chris@16: }} // namespace boost::spirit
Chris@16: 
Chris@16: #if defined(BOOST_MSVC)
Chris@16: #pragma warning(pop)
Chris@16: #endif
Chris@16: 
Chris@16: #endif