vpXmlParser.h

/****************************************************************************
 *
 * ViSP, open source Visual Servoing Platform software.
 * Copyright (C) 2005 - 2019 by Inria. All rights reserved.
 *
 * This software 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.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Tools to automatise the creation of xml parser based on the libXML2
 *
 * Authors:
 * Romain Tallonneau
 *
 *****************************************************************************/

#ifndef vpXmlParser_HH
#define vpXmlParser_HH

#include <visp3/core/vpConfig.h>

#ifdef VISP_HAVE_XML2

#include <visp3/core/vpException.h>

#include <libxml/parser.h>

#include <iomanip>
#include <map>
#include <sstream>
#include <string.h>
#include <string>
#include <typeinfo>

class VISP_EXPORT vpXmlParser
{
protected:
  virtual void readMainClass(xmlDocPtr doc, xmlNodePtr node) = 0;

  virtual void writeMainClass(xmlNodePtr node) = 0;

  bool xmlReadBoolChild(xmlDocPtr doc, xmlNodePtr node);
  char *xmlReadCharChild(xmlDocPtr doc, xmlNodePtr node);
  double xmlReadDoubleChild(xmlDocPtr doc, xmlNodePtr node);
  float xmlReadFloatChild(xmlDocPtr doc, xmlNodePtr node);
  int xmlReadIntChild(xmlDocPtr doc, xmlNodePtr node);
  std::string xmlReadStringChild(xmlDocPtr doc, xmlNodePtr node);
  unsigned int xmlReadUnsignedIntChild(xmlDocPtr doc, xmlNodePtr node);

  void xmlWriteBoolChild(xmlNodePtr node, const char *label, const bool value);
  void xmlWriteCharChild(xmlNodePtr node, const char *label, const char *value);
  void xmlWriteDoubleChild(xmlNodePtr node, const char *label, const double value);
  void xmlWriteFloatChild(xmlNodePtr node, const char *label, const float value);
  void xmlWriteIntChild(xmlNodePtr node, const char *label, const int value);
  void xmlWriteStringChild(xmlNodePtr node, const char *label, const std::string &value);
  void xmlWriteUnsignedIntChild(xmlNodePtr node, const char *label, const unsigned int value);

protected:
  std::map<std::string, int> nodeMap;

  std::string main_tag;

public:
  vpXmlParser();
  vpXmlParser(const vpXmlParser &_twin);
  virtual ~vpXmlParser();

  /* virtual */ void parse(const std::string &filename);
  /* virtual */ void save(const std::string &filename, const bool append = false);

  void setMap(const std::map<std::string, int> &_map) { nodeMap = _map; }

  inline void setMainTag(const std::string &tag) { main_tag = tag; }

  static void cleanup() { xmlCleanupParser(); }
};

#endif /* VISP_HAVE_XML2 */

#endif