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/*
* libopenraw - xmlhandler.h
*
* Copyright (C) 2008 Hubert Figuiere
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef _XML_HANDLER_H_
#define _XML_HANDLER_H_
#include <stdint.h>
#include <libxml/xmlreader.h>
#include <stack>
#include <string>
#include <map>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
namespace xml {
class LtString
{
public:
bool operator()(const xmlChar* s1, const xmlChar* s2) const;
};
class Handler;
typedef boost::shared_ptr<Handler> HandlerPtr;
class Context;
typedef boost::shared_ptr<Context> ContextPtr;
class Context
: public boost::enable_shared_from_this<Context>
{
public:
Context(const HandlerPtr & handler);
virtual ~Context();
virtual ContextPtr startElement(int32_t element);
virtual void endElement(int32_t element);
virtual void appendText(const xmlChar * content);
protected:
HandlerPtr m_handler;
};
struct tag_map_definition_t;
class Handler
: public Context
{
public:
typedef std::map<const xmlChar *, int32_t, xml::LtString> tag_map_t;
Handler(const std::string & filename);
~Handler();
int32_t getTagId(const xmlChar * tag);
bool process();
protected:
void mapTags(const tag_map_definition_t * map);
private:
std::stack<ContextPtr> m_contexts;
tag_map_t m_tag_map;
xmlTextReaderPtr m_reader;
};
struct tag_map_definition_t
{
const char * first;
int32_t second;
};
class SimpleElementContext
: public Context
{
public:
SimpleElementContext(const HandlerPtr & handler, std::string & content);
virtual void appendText(const xmlChar * content);
private:
std::string & m_content;
};
}
#endif
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