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//
// aegis - project change supervisor
// Copyright (C) 2005, 2006, 2008, 2012 Peter Miller
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
//

#ifndef LIBAEGIS_XMLTEXTREAD_BY_NODE_H
#define LIBAEGIS_XMLTEXTREAD_BY_NODE_H

#include <common/symtab/template.h>
#include <libaegis/xmltextread.h>

class xml_node; // forward

class xml_text_reader_by_node:
    public xml_text_reader
{
public:
    virtual ~xml_text_reader_by_node();

    xml_text_reader_by_node(input &deeper, bool validate = false);

    void register_node_handler(const nstring &name, xml_node &handler);

    // See base class for documentation.
    void process_node(void);

    // See base class for documentation.
    void process_node_end(bool empty);

private:
    symtab<xml_node> handlers;

    nstring_list names;

    xml_node *current_node;

    void push_name(const nstring &name);

    void pop_name(const nstring &name);

    void calculate_current_node_handler(void);

    xml_text_reader_by_node();

    xml_text_reader_by_node(const xml_text_reader_by_node &);

    xml_text_reader_by_node &operator=(const xml_text_reader_by_node &);
};

#endif // LIBAEGIS_XMLTEXTREAD_BY_NODE_H
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