gistfile1.cpp

template <std::string literal, std::string name>
std::unique_ptr< LiteralTerminal< literal, name > > LiteralTerminal::Parse( std::string::const_iterator& stream_begin, std::string::const_iterator stream_end )
{
    if( ( end - begin ) < literal.size() )
    {
        if( std::equal( literal.begin(), literal.end(), stream_begin ) )
        {
            stream_begin += literal.size();
            return std::unique_ptr< LiteralTerminal< literal, name > >( new LiteralTerminal< literal, name > );
        }
    }     
    return std::unique_ptr< LiteralTerminal< literal, name > >( nullptr );
}