#ifndef HEPHISTONAMETAG_H
#define HEPHISTONAMETAG_H

// ----------------------------------------------------------------------
//
// NameTag.h - class declaration for the nameTag of a column.
//
// This simple structure is used to parse a column name for a nHisto
// that can be of the form "block_name::column_name" or "column_name"
// or "[block_name::]column_name(1 , ...)" if withIndices is true
// The block name is an alpha numerical string whithout any white space.
// The column name is as defined by Histo.
// isValid is false if the name tag parsed was not correctly formed.

#include "HepTuple/TupleNameTag.h"


ZM_BEGIN_NAMESPACE( zmht )	/*  namespace zmht  {  */

class HistoNameTag : public TupleNameTag {

public:

  HistoNameTag();
  // empty constructor to be called by sub-class

  /*  HistoNameTag(const std::string& tag,bool withIndices = false); */

protected:

  virtual bool isValidBlockName(const std::string& name) const;
  virtual bool isValidColumnName(const std::string& name) const;
  // return true if it is a syntaxically correct block/column name
  // return falase otherwise;
  // The implementation in this class just verify that there is no
  // white space and that the length is no more than eight characters
  // (not including possible parathesis at the end for columns)

};


ZM_END_NAMESPACE( zmht )	/*  }  // namespace zmht  */

#endif // HEPHISTONAMETAG_H