treader.h

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#ifndef GRAPH_TREE_TREADER_H
#define GRAPH_TREE_TREADER_H


//--- header files ------------------------------------------------------------

#include <graph/config/graph_config.h>
#include <soma-io/reader/areader.h>
#include <graph/tree/tvisitor.h>
#include <list>


//--- forward declarations ----------------------------------------------------

class Tree;
class TreeFactory;
namespace carto
{
  class TreeParser;
}


//--- class declarations ------------------------------------------------------

class GRAPH_API TreeReader : public TreeVisitor
{
public:
  TreeReader( const std::string& filename, const carto::SyntaxSet& syntax, 
              const carto::AttributedReader::HelperSet& helpers 
              = carto::AttributedReader::HelperSet() );
  TreeReader( const carto::SyntaxSet& syntax, 
              const carto::AttributedReader::HelperSet& helpers 
              = carto::AttributedReader::HelperSet() );
  TreeReader( const TreeFactory & factory, const std::string& filename,
              const carto::SyntaxSet& syntax, 
              const carto::AttributedReader::HelperSet& helpers 
              = carto::AttributedReader::HelperSet() );
  TreeReader( const TreeFactory & factory, const carto::SyntaxSet& syntax, 
              const carto::AttributedReader::HelperSet& helpers 
              = carto::AttributedReader::HelperSet() );

  virtual ~TreeReader();

  virtual Tree* read();
  virtual void read( Tree & );
  virtual void readTree( Tree * )
    __attribute__((__deprecated__("OBSOLETE, use read( Tree & ) instead")));

  void open(const std::string& filename)
    __attribute__((__deprecated__("use attach() instead")));
  void close();
  void attach( std::istream & s, int line_num = 1 );
  void attach( const std::string & filename );
  void attach( carto::rc_ptr<carto::DataSource> ds );
  void detach();
  virtual std::string name() const;
  const carto::rc_ptr<carto::DataSource> dataSource() const;
  carto::rc_ptr<carto::DataSource> dataSource();

  std::list<carto::TreeParser *> & parsers();
  const carto::SyntaxSet & syntaxSet() const { return _syntax; }
  void setSyntax( const carto::SyntaxSet & syntax );

private:
  TreeReader( const TreeReader& );
  TreeReader& operator = ( const TreeReader& );

  carto::SyntaxSet                      _syntax;
  carto::AttributedReader::HelperSet    _helpers;
  TreeFactory                           *_factory;
  carto::rc_ptr<carto::DataSource>      _datasource;
  std::list<carto::TreeParser *>        _parsers;

};


//--- functions ---------------------------------------------------------------

GRAPH_API TreeReader& operator>>(TreeReader& reader, Tree& tree);


#endif