#include <string>
#include "agddHasTag.hh"
#include "ExpatInterface/Element.h"

namespace agdd {

  void HasTag::setTag(const string & s) {
    if (s=="") {
      cerr << "ERROR: A tag may not be set to the empty string." << endl;
    };
    assert (s!="");
    _tag   = s;
    _isSet = true;
  };
  HasTag::HasTag(const string & s) :
    _isSet(false),
    _tag(),
    _elt(0) {
    setTag(s);
  };
  const string HasTag::getTag() const {
    if (!_isSet) {
      cerr << "ERROR: A tag has been requested before being set." << endl;
    }
    assert (_isSet);
    return _tag;
  };
  void HasTag::makeTheElement() {
    assert (!_elt);  // Currently no support for duplicate elements.
    _elt = new (xml::Element);
    assert(_elt);
    _elt->setTagName(getTag());
  };
  xml::Element * HasTag::theElement() {
    assert(_elt);
    return _elt;
  };
    
};