// XmlParser.h

#ifndef XmlParser_H
#define XmlParser_H

// David Adams
// July 2002
//
// Parser to create an XmlElement from an XML file.
//
// Xerces DOM is used to parse the XML files.

#include <string>
#include "dataset_util/XmlElement.h"

class XmlParser {

public:  // Embedded classes

  // Implementation class
  class Imp;

private:  // data

  // Implementation.
  Imp* pimp;

private:  // Hidden functions.

  // Copy constructor.
  XmlParser(const XmlParser&);

  // Assignment.
  XmlParser& operator=(const XmlParser&);

public:  // const methods

  // Constructor.
  XmlParser();

  // Destructor.
  ~XmlParser();

  // Parse an XML string or a file.
  // Argument is assumed to be a file name if the first
  // chracter is not '<';
  // Caller is responsible for managing (deleting) the element.
  const XmlElement* parse(std::string filename);

  // Write an XmlElement into a file.
  // The XML type of the element must be registered in DtdRegistry
  // so the name of the DTD file can be included in the file.
  // Returns nonzero for error.
  int write(std::string filename, const XmlElement& ele);

};

#endif