xml_tag_parser.h

/***************************************************************************
 *   Copyright (C) 2005 by Radko Mihal                                     *
 *   rmihal@pobox.sk                                                       *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
 ***************************************************************************/
#ifndef XML_PARSERBASIC_XML_TAG_PARSER_H
#define XML_PARSERBASIC_XML_TAG_PARSER_H

namespace xml_parser {

template< typename E >
class basic_xml_tag_parser  : public grammar_to_parser::basic_simple_non_terminal<E>
{
public:
typedef typename grammar_to_parser::basic_parser<E>::parser_list parser_list;
typedef typename grammar_to_parser::basic_parser<E>::parser_list_iterator parser_list_iterator;
        
        basic_xml_tag_parser( std::basic_string<E> tag_name ) :
                grammar_to_parser::basic_simple_non_terminal<E>(),
                m_tag_name_begin(tag_name),
                m_tag_name_end(tag_name) {};
                
        // The method must be reimplemented when defining subclasses - it returns the
        // parser of parameters used in tag declaration
        // see xml_parser sample project
        virtual grammar_to_parser::basic_parser<E>* get_params_parser() = 0;
        
        // The method must be reimplemented when defining subclasses - it returns the 
        // parser of value enclosed in tag
        // see xml_parser sample project 
        virtual grammar_to_parser::basic_parser<E>* get_value_parser() = 0;
        
        void get_symbols( parser_list &l )
        {
                l.push_back(&m_1);
                l.push_back(&m_tag_name_begin);
                l.push_back(get_params_parser());
                l.push_back(&m_2);
                l.push_back(get_value_parser());
                l.push_back(&m_3);
                l.push_back(&m_4);
                l.push_back(&m_tag_name_end);
                l.push_back(&m_5);
        }       
protected:
        grammar_to_parser::basic_terminal<E,'<'>        m_1;
        grammar_to_parser::basic_pattern_parser<E>      m_tag_name_begin;
        // here will come params parser from inherited class 
        // supporting get_params_parser() method 
        grammar_to_parser::basic_terminal<E,'>'>        m_2;
        // here will come value parser from inherited class 
        // supporting get_value_parser() method
        grammar_to_parser::basic_terminal<E,'<'>        m_3;
        grammar_to_parser::basic_terminal<E,'\\'>       m_4;
        grammar_to_parser::basic_pattern_parser<E>      m_tag_name_end;
        grammar_to_parser::basic_terminal<E,'>'>        m_5;
};


typedef basic_xml_tag_parser<char> xml_tag_parser;
typedef basic_xml_tag_parser<wchar_t> wxml_tag_parser;


};

#endif

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