com.sun.org.apache.xml.internal.dtm.DTMFilter Java Examples

/**
 * Create a LocPathIterator object, including creation
 * of step walkers from the opcode list, and call back
 * into the Compiler to create predicate expressions.
 *
 * @param compiler The Compiler which is creating
 * this expression.
 * @param opPos The position of this iterator in the
 * opcode list from the compiler.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected BasicTestIterator(Compiler compiler, int opPos, int analysis)
        throws javax.xml.transform.TransformerException
{
  super(compiler, opPos, analysis, false);

  int firstStepPos = OpMap.getFirstChildPos(opPos);
  int whatToShow = compiler.getWhatToShow(firstStepPos);

  if ((0 == (whatToShow
             & (DTMFilter.SHOW_ATTRIBUTE
             | DTMFilter.SHOW_NAMESPACE
             | DTMFilter.SHOW_ELEMENT
             | DTMFilter.SHOW_PROCESSING_INSTRUCTION)))
             || (whatToShow == DTMFilter.SHOW_ALL))
    initNodeTest(whatToShow);
  else
  {
    initNodeTest(whatToShow, compiler.getStepNS(firstStepPos),
                            compiler.getStepLocalName(firstStepPos));
  }
  initPredicateInfo(compiler, firstStepPos);
}
 

/**
 * Initialize the context values for this expression
 * after it is cloned.
 *
 * @param context The XPath runtime context for this
 * transformation.
 */
public void setRoot(int context, Object environment)
{
  super.setRoot(context, environment);
  m_traverser = m_cdtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;
  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || NodeTest.WILD.equals(localName)
     || NodeTest.WILD.equals(namespace))
  {
    m_extendedTypeID = 0;
  }
  else
  {
    int type = getNodeTypeTest(what);
    m_extendedTypeID = m_cdtm.getExpandedTypeID(namespace, localName, type);
  }

}
 

/**
 * Create a LocPathIterator object, including creation
 * of step walkers from the opcode list, and call back
 * into the Compiler to create predicate expressions.
 *
 * @param compiler The Compiler which is creating
 * this expression.
 * @param opPos The position of this iterator in the
 * opcode list from the compiler.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected BasicTestIterator(Compiler compiler, int opPos, int analysis)
        throws javax.xml.transform.TransformerException
{
  super(compiler, opPos, analysis, false);

  int firstStepPos = OpMap.getFirstChildPos(opPos);
  int whatToShow = compiler.getWhatToShow(firstStepPos);

  if ((0 == (whatToShow
             & (DTMFilter.SHOW_ATTRIBUTE
             | DTMFilter.SHOW_NAMESPACE
             | DTMFilter.SHOW_ELEMENT
             | DTMFilter.SHOW_PROCESSING_INSTRUCTION)))
             || (whatToShow == DTMFilter.SHOW_ALL))
    initNodeTest(whatToShow);
  else
  {
    initNodeTest(whatToShow, compiler.getStepNS(firstStepPos),
                            compiler.getStepLocalName(firstStepPos));
  }
  initPredicateInfo(compiler, firstStepPos);
}
 

/**
 * Create a LocPathIterator object, including creation
 * of step walkers from the opcode list, and call back
 * into the Compiler to create predicate expressions.
 *
 * @param compiler The Compiler which is creating
 * this expression.
 * @param opPos The position of this iterator in the
 * opcode list from the compiler.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected BasicTestIterator(Compiler compiler, int opPos, int analysis)
        throws javax.xml.transform.TransformerException
{
  super(compiler, opPos, analysis, false);

  int firstStepPos = OpMap.getFirstChildPos(opPos);
  int whatToShow = compiler.getWhatToShow(firstStepPos);

  if ((0 == (whatToShow
             & (DTMFilter.SHOW_ATTRIBUTE
             | DTMFilter.SHOW_NAMESPACE
             | DTMFilter.SHOW_ELEMENT
             | DTMFilter.SHOW_PROCESSING_INSTRUCTION)))
             || (whatToShow == DTMFilter.SHOW_ALL))
    initNodeTest(whatToShow);
  else
  {
    initNodeTest(whatToShow, compiler.getStepNS(firstStepPos),
                            compiler.getStepLocalName(firstStepPos));
  }
  initPredicateInfo(compiler, firstStepPos);
}
 

/**
 * Create a LocPathIterator object, including creation
 * of step walkers from the opcode list, and call back
 * into the Compiler to create predicate expressions.
 *
 * @param compiler The Compiler which is creating
 * this expression.
 * @param opPos The position of this iterator in the
 * opcode list from the compiler.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected BasicTestIterator(Compiler compiler, int opPos, int analysis)
        throws javax.xml.transform.TransformerException
{
  super(compiler, opPos, analysis, false);

  int firstStepPos = OpMap.getFirstChildPos(opPos);
  int whatToShow = compiler.getWhatToShow(firstStepPos);

  if ((0 == (whatToShow
             & (DTMFilter.SHOW_ATTRIBUTE
             | DTMFilter.SHOW_NAMESPACE
             | DTMFilter.SHOW_ELEMENT
             | DTMFilter.SHOW_PROCESSING_INSTRUCTION)))
             || (whatToShow == DTMFilter.SHOW_ALL))
    initNodeTest(whatToShow);
  else
  {
    initNodeTest(whatToShow, compiler.getStepNS(firstStepPos),
                            compiler.getStepLocalName(firstStepPos));
  }
  initPredicateInfo(compiler, firstStepPos);
}
 

/**
 * Initialize the context values for this expression
 * after it is cloned.
 *
 * @param context The XPath runtime context for this
 * transformation.
 */
public void setRoot(int context, Object environment)
{
  super.setRoot(context, environment);
  m_traverser = m_cdtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;
  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || NodeTest.WILD.equals(localName)
     || NodeTest.WILD.equals(namespace))
  {
    m_extendedTypeID = 0;
  }
  else
  {
    int type = getNodeTypeTest(what);
    m_extendedTypeID = m_cdtm.getExpandedTypeID(namespace, localName, type);
  }

}
 

/**
 * Create a LocPathIterator object, including creation
 * of step walkers from the opcode list, and call back
 * into the Compiler to create predicate expressions.
 *
 * @param compiler The Compiler which is creating
 * this expression.
 * @param opPos The position of this iterator in the
 * opcode list from the compiler.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected BasicTestIterator(Compiler compiler, int opPos, int analysis)
        throws javax.xml.transform.TransformerException
{
  super(compiler, opPos, analysis, false);

  int firstStepPos = OpMap.getFirstChildPos(opPos);
  int whatToShow = compiler.getWhatToShow(firstStepPos);

  if ((0 == (whatToShow
             & (DTMFilter.SHOW_ATTRIBUTE
             | DTMFilter.SHOW_NAMESPACE
             | DTMFilter.SHOW_ELEMENT
             | DTMFilter.SHOW_PROCESSING_INSTRUCTION)))
             || (whatToShow == DTMFilter.SHOW_ALL))
    initNodeTest(whatToShow);
  else
  {
    initNodeTest(whatToShow, compiler.getStepNS(firstStepPos),
                            compiler.getStepLocalName(firstStepPos));
  }
  initPredicateInfo(compiler, firstStepPos);
}
 

/**
 * Create a LocPathIterator object, including creation
 * of step walkers from the opcode list, and call back
 * into the Compiler to create predicate expressions.
 *
 * @param compiler The Compiler which is creating
 * this expression.
 * @param opPos The position of this iterator in the
 * opcode list from the compiler.
 *
 * @throws javax.xml.transform.TransformerException
 */
protected BasicTestIterator(Compiler compiler, int opPos, int analysis)
        throws javax.xml.transform.TransformerException
{
  super(compiler, opPos, analysis, false);

  int firstStepPos = OpMap.getFirstChildPos(opPos);
  int whatToShow = compiler.getWhatToShow(firstStepPos);

  if ((0 == (whatToShow
             & (DTMFilter.SHOW_ATTRIBUTE
             | DTMFilter.SHOW_NAMESPACE
             | DTMFilter.SHOW_ELEMENT
             | DTMFilter.SHOW_PROCESSING_INSTRUCTION)))
             || (whatToShow == DTMFilter.SHOW_ALL))
    initNodeTest(whatToShow);
  else
  {
    initNodeTest(whatToShow, compiler.getStepNS(firstStepPos),
                            compiler.getStepLocalName(firstStepPos));
  }
  initPredicateInfo(compiler, firstStepPos);
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

public int next() {
    int node;
    while ((node = _source.next()) != END) {
        if (_filter.acceptNode(node, DTMFilter.SHOW_ALL) == DTMIterator.FILTER_ACCEPT) {
            return returnNode(node);
        }
    }
    return END;
}
 

public int next() {
    int node;
    while ((node = _source.next()) != END) {
        if (_filter.acceptNode(node, DTMFilter.SHOW_ALL) == DTMIterator.FILTER_ACCEPT) {
            return returnNode(node);
        }
    }
    return END;
}
 

/**
 * Calculate the local name or psuedo name of the node that this pattern will test,
 * for hash table lookup optimization.
 *
 * @see com.sun.org.apache.xpath.internal.compiler.PsuedoNames
 */
public void calcTargetString()
{

  int whatToShow = getWhatToShow();

  switch (whatToShow)
  {
  case DTMFilter.SHOW_COMMENT :
    m_targetString = PsuedoNames.PSEUDONAME_COMMENT;
    break;
  case DTMFilter.SHOW_TEXT :
  case DTMFilter.SHOW_CDATA_SECTION :
  case (DTMFilter.SHOW_TEXT | DTMFilter.SHOW_CDATA_SECTION) :
    m_targetString = PsuedoNames.PSEUDONAME_TEXT;
    break;
  case DTMFilter.SHOW_ALL :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  case DTMFilter.SHOW_DOCUMENT :
  case DTMFilter.SHOW_DOCUMENT | DTMFilter.SHOW_DOCUMENT_FRAGMENT :
    m_targetString = PsuedoNames.PSEUDONAME_ROOT;
    break;
  case DTMFilter.SHOW_ELEMENT :
    if (this.WILD == m_name)
      m_targetString = PsuedoNames.PSEUDONAME_ANY;
    else
      m_targetString = m_name;
    break;
  default :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  }
}
 

/**
 * Calculate the local name or psuedo name of the node that this pattern will test,
 * for hash table lookup optimization.
 *
 * @see com.sun.org.apache.xpath.internal.compiler.PsuedoNames
 */
public void calcTargetString()
{

  int whatToShow = getWhatToShow();

  switch (whatToShow)
  {
  case DTMFilter.SHOW_COMMENT :
    m_targetString = PsuedoNames.PSEUDONAME_COMMENT;
    break;
  case DTMFilter.SHOW_TEXT :
  case DTMFilter.SHOW_CDATA_SECTION :
  case (DTMFilter.SHOW_TEXT | DTMFilter.SHOW_CDATA_SECTION) :
    m_targetString = PsuedoNames.PSEUDONAME_TEXT;
    break;
  case DTMFilter.SHOW_ALL :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  case DTMFilter.SHOW_DOCUMENT :
  case DTMFilter.SHOW_DOCUMENT | DTMFilter.SHOW_DOCUMENT_FRAGMENT :
    m_targetString = PsuedoNames.PSEUDONAME_ROOT;
    break;
  case DTMFilter.SHOW_ELEMENT :
    if (this.WILD == m_name)
      m_targetString = PsuedoNames.PSEUDONAME_ANY;
    else
      m_targetString = m_name;
    break;
  default :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  }
}
 

/**
 * Create a DescendantIterator object.
 *
 */
public DescendantIterator()
{
  super(null);
  m_axis = Axis.DESCENDANTSORSELFFROMROOT;
  int whatToShow = DTMFilter.SHOW_ALL;
  initNodeTest(whatToShow);
}
 

/**
 * Return the first node out of the nodeset, if this expression is
 * a nodeset expression.  This is the default implementation for
 * nodesets.
 * <p>WARNING: Do not mutate this class from this function!</p>
 * @param xctxt The XPath runtime context.
 * @return the first node out of the nodeset, or DTM.NULL.
 */
public int asNode(XPathContext xctxt)
  throws javax.xml.transform.TransformerException
{
  if(getPredicateCount() > 0)
    return super.asNode(xctxt);

  int current = xctxt.getCurrentNode();

  DTM dtm = xctxt.getDTM(current);
  DTMAxisTraverser traverser = dtm.getAxisTraverser(m_axis);

  String localName = getLocalName();
  String namespace = getNamespace();
  int what = m_whatToShow;

  // System.out.print(" (DescendantIterator) ");

  // System.out.println("what: ");
  // NodeTest.debugWhatToShow(what);
  if(DTMFilter.SHOW_ALL == what
     || localName == NodeTest.WILD
     || namespace == NodeTest.WILD)
  {
    return traverser.first(current);
  }
  else
  {
    int type = getNodeTypeTest(what);
    int extendedType = dtm.getExpandedTypeID(namespace, localName, type);
    return traverser.first(current, extendedType);
  }
}
 

/**
 * Create a OneStepIterator object that will just traverse the self axes.
 *
 * @param axis One of the com.sun.org.apache.xml.internal.dtm.Axis integers.
 *
 * @throws javax.xml.transform.TransformerException
 */
public OneStepIteratorForward(int axis)
{
  super(null);

  m_axis = axis;
  int whatToShow = DTMFilter.SHOW_ALL;
  initNodeTest(whatToShow);
}
 

/**
 * Create a OneStepIterator object.
 *
 * @param iterator The DTM iterator which this iterator will use.
 * @param axis One of Axis.Child, etc., or -1 if the axis is unknown.
 *
 * @throws javax.xml.transform.TransformerException
 */
public OneStepIterator(DTMAxisIterator iterator, int axis)
        throws javax.xml.transform.TransformerException
{
  super(null);

  m_iterator = iterator;
  m_axis = axis;
  int whatToShow = DTMFilter.SHOW_ALL;
  initNodeTest(whatToShow);
}
 

/**
 * Create a OneStepIterator object.
 *
 * @param iterator The DTM iterator which this iterator will use.
 * @param axis One of Axis.Child, etc., or -1 if the axis is unknown.
 *
 * @throws javax.xml.transform.TransformerException
 */
public OneStepIterator(DTMAxisIterator iterator, int axis)
        throws javax.xml.transform.TransformerException
{
  super(null);

  m_iterator = iterator;
  m_axis = axis;
  int whatToShow = DTMFilter.SHOW_ALL;
  initNodeTest(whatToShow);
}
 

public int next() {
    int node;
    while ((node = _source.next()) != END) {
        if (_filter.acceptNode(node, DTMFilter.SHOW_ALL) == DTMIterator.FILTER_ACCEPT) {
            return returnNode(node);
        }
    }
    return END;
}
 

/**
 * Calculate the local name or psuedo name of the node that this pattern will test,
 * for hash table lookup optimization.
 *
 * @see com.sun.org.apache.xpath.internal.compiler.PsuedoNames
 */
public void calcTargetString()
{

  int whatToShow = getWhatToShow();

  switch (whatToShow)
  {
  case DTMFilter.SHOW_COMMENT :
    m_targetString = PsuedoNames.PSEUDONAME_COMMENT;
    break;
  case DTMFilter.SHOW_TEXT :
  case DTMFilter.SHOW_CDATA_SECTION :
  case (DTMFilter.SHOW_TEXT | DTMFilter.SHOW_CDATA_SECTION) :
    m_targetString = PsuedoNames.PSEUDONAME_TEXT;
    break;
  case DTMFilter.SHOW_ALL :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  case DTMFilter.SHOW_DOCUMENT :
  case DTMFilter.SHOW_DOCUMENT | DTMFilter.SHOW_DOCUMENT_FRAGMENT :
    m_targetString = PsuedoNames.PSEUDONAME_ROOT;
    break;
  case DTMFilter.SHOW_ELEMENT :
    if (this.WILD == m_name)
      m_targetString = PsuedoNames.PSEUDONAME_ANY;
    else
      m_targetString = m_name;
    break;
  default :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  }
}
 

/**
 * Calculate the local name or psuedo name of the node that this pattern will test,
 * for hash table lookup optimization.
 *
 * @see com.sun.org.apache.xpath.internal.compiler.PsuedoNames
 */
public void calcTargetString()
{

  int whatToShow = getWhatToShow();

  switch (whatToShow)
  {
  case DTMFilter.SHOW_COMMENT :
    m_targetString = PsuedoNames.PSEUDONAME_COMMENT;
    break;
  case DTMFilter.SHOW_TEXT :
  case DTMFilter.SHOW_CDATA_SECTION :
  case (DTMFilter.SHOW_TEXT | DTMFilter.SHOW_CDATA_SECTION) :
    m_targetString = PsuedoNames.PSEUDONAME_TEXT;
    break;
  case DTMFilter.SHOW_ALL :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  case DTMFilter.SHOW_DOCUMENT :
  case DTMFilter.SHOW_DOCUMENT | DTMFilter.SHOW_DOCUMENT_FRAGMENT :
    m_targetString = PsuedoNames.PSEUDONAME_ROOT;
    break;
  case DTMFilter.SHOW_ELEMENT :
    if (this.WILD == m_name)
      m_targetString = PsuedoNames.PSEUDONAME_ANY;
    else
      m_targetString = m_name;
    break;
  default :
    m_targetString = PsuedoNames.PSEUDONAME_ANY;
    break;
  }
}
 

/**
 * Create a DescendantIterator object.
 *
 */
public DescendantIterator()
{
  super(null);
  m_axis = Axis.DESCENDANTSORSELFFROMROOT;
  int whatToShow = DTMFilter.SHOW_ALL;
  initNodeTest(whatToShow);
}
 

/**
 * Create a OneStepIterator object that will just traverse the self axes.
 *
 * @param axis One of the com.sun.org.apache.xml.internal.dtm.Axis integers.
 *
 * @throws javax.xml.transform.TransformerException
 */
public OneStepIteratorForward(int axis)
{
  super(null);

  m_axis = axis;
  int whatToShow = DTMFilter.SHOW_ALL;
  initNodeTest(whatToShow);
}
 

/**
 * Construct a ContextMatchStepPattern.
 *
 */
public ContextMatchStepPattern(int axis, int paxis)
{
  super(DTMFilter.SHOW_ALL, axis, paxis);
}
 

/**
 * Tell what the test score is for the given node.
 *
 *
 * @param xctxt XPath runtime context.
 * @param context The node being tested.
 *
 * @return {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NODETEST},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NONE},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_NSWILD},
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_QNAME}, or
 *         {@link com.sun.org.apache.xpath.internal.patterns.NodeTest#SCORE_OTHER}.
 *
 * @throws javax.xml.transform.TransformerException
 */
public XObject execute(XPathContext xctxt, int context,
                       DTM dtm, int expType)
        throws javax.xml.transform.TransformerException
{

  if (m_whatToShow == DTMFilter.SHOW_ALL)
    return m_score;

  int nodeBit = (m_whatToShow & (0x00000001
                 << ((dtm.getNodeType(context)) - 1)));

  switch (nodeBit)
  {
  case DTMFilter.SHOW_DOCUMENT_FRAGMENT :
  case DTMFilter.SHOW_DOCUMENT :
    return SCORE_OTHER;
  case DTMFilter.SHOW_COMMENT :
    return m_score;
  case DTMFilter.SHOW_CDATA_SECTION :
  case DTMFilter.SHOW_TEXT :

    // was:
    // return (!xctxt.getDOMHelper().shouldStripSourceNode(context))
    //       ? m_score : SCORE_NONE;
    return m_score;
  case DTMFilter.SHOW_PROCESSING_INSTRUCTION :
    return subPartMatch(dtm.getNodeName(context), m_name)
           ? m_score : SCORE_NONE;

  // From the draft: "Two expanded names are equal if they
  // have the same local part, and either both have no URI or
  // both have the same URI."
  // "A node test * is true for any node of the principal node type.
  // For example, child::* will select all element children of the
  // context node, and attribute::* will select all attributes of
  // the context node."
  // "A node test can have the form NCName:*. In this case, the prefix
  // is expanded in the same way as with a QName using the context
  // namespace declarations. The node test will be true for any node
  // of the principal type whose expanded name has the URI to which
  // the prefix expands, regardless of the local part of the name."
  case DTMFilter.SHOW_NAMESPACE :
  {
    String ns = dtm.getLocalName(context);

    return (subPartMatch(ns, m_name)) ? m_score : SCORE_NONE;
  }
  case DTMFilter.SHOW_ATTRIBUTE :
  case DTMFilter.SHOW_ELEMENT :
  {
    return (m_isTotallyWild || (subPartMatchNS(dtm.getNamespaceURI(context), m_namespace) && subPartMatch(dtm.getLocalName(context), m_name)))
           ? m_score : SCORE_NONE;
  }
  default :
    return SCORE_NONE;
  }  // end switch(testType)
}
 

/**
   * Get a {@link org.w3c.dom.traversal.NodeFilter} bit set that tells what
   * to show for a given node test.
   *
   * @param opPos the op map position for the location step.
   *
   * @return {@link org.w3c.dom.traversal.NodeFilter} bit set that tells what
   *         to show for a given node test.
   */
  public int getWhatToShow(int opPos)
  {

    int axesType = getOp(opPos);
    int testType = getOp(opPos + 3);

    // System.out.println("testType: "+testType);
    switch (testType)
    {
    case OpCodes.NODETYPE_COMMENT :
      return DTMFilter.SHOW_COMMENT;
    case OpCodes.NODETYPE_TEXT :
//      return DTMFilter.SHOW_TEXT | DTMFilter.SHOW_COMMENT;
      return DTMFilter.SHOW_TEXT | DTMFilter.SHOW_CDATA_SECTION ;
    case OpCodes.NODETYPE_PI :
      return DTMFilter.SHOW_PROCESSING_INSTRUCTION;
    case OpCodes.NODETYPE_NODE :
//      return DTMFilter.SHOW_ALL;
      switch (axesType)
      {
      case OpCodes.FROM_NAMESPACE:
        return DTMFilter.SHOW_NAMESPACE;
      case OpCodes.FROM_ATTRIBUTES :
      case OpCodes.MATCH_ATTRIBUTE :
        return DTMFilter.SHOW_ATTRIBUTE;
      case OpCodes.FROM_SELF:
      case OpCodes.FROM_ANCESTORS_OR_SELF:
      case OpCodes.FROM_DESCENDANTS_OR_SELF:
        return DTMFilter.SHOW_ALL;
      default:
        if (getOp(0) == OpCodes.OP_MATCHPATTERN)
          return ~DTMFilter.SHOW_ATTRIBUTE
                  & ~DTMFilter.SHOW_DOCUMENT
                  & ~DTMFilter.SHOW_DOCUMENT_FRAGMENT;
        else
          return ~DTMFilter.SHOW_ATTRIBUTE;
      }
    case OpCodes.NODETYPE_ROOT :
      return DTMFilter.SHOW_DOCUMENT | DTMFilter.SHOW_DOCUMENT_FRAGMENT;
    case OpCodes.NODETYPE_FUNCTEST :
      return NodeTest.SHOW_BYFUNCTION;
    case OpCodes.NODENAME :
      switch (axesType)
      {
      case OpCodes.FROM_NAMESPACE :
        return DTMFilter.SHOW_NAMESPACE;
      case OpCodes.FROM_ATTRIBUTES :
      case OpCodes.MATCH_ATTRIBUTE :
        return DTMFilter.SHOW_ATTRIBUTE;

      // break;
      case OpCodes.MATCH_ANY_ANCESTOR :
      case OpCodes.MATCH_IMMEDIATE_ANCESTOR :
        return DTMFilter.SHOW_ELEMENT;

      // break;
      default :
        return DTMFilter.SHOW_ELEMENT;
      }
    default :
      // System.err.println("We should never reach here.");
      return DTMFilter.SHOW_ALL;
    }
  }
 

/**
   * Get a {@link org.w3c.dom.traversal.NodeFilter} bit set that tells what
   * to show for a given node test.
   *
   * @param opPos the op map position for the location step.
   *
   * @return {@link org.w3c.dom.traversal.NodeFilter} bit set that tells what
   *         to show for a given node test.
   */
  public int getWhatToShow(int opPos)
  {

    int axesType = getOp(opPos);
    int testType = getOp(opPos + 3);

    // System.out.println("testType: "+testType);
    switch (testType)
    {
    case OpCodes.NODETYPE_COMMENT :
      return DTMFilter.SHOW_COMMENT;
    case OpCodes.NODETYPE_TEXT :
//      return DTMFilter.SHOW_TEXT | DTMFilter.SHOW_COMMENT;
      return DTMFilter.SHOW_TEXT | DTMFilter.SHOW_CDATA_SECTION ;
    case OpCodes.NODETYPE_PI :
      return DTMFilter.SHOW_PROCESSING_INSTRUCTION;
    case OpCodes.NODETYPE_NODE :
//      return DTMFilter.SHOW_ALL;
      switch (axesType)
      {
      case OpCodes.FROM_NAMESPACE:
        return DTMFilter.SHOW_NAMESPACE;
      case OpCodes.FROM_ATTRIBUTES :
      case OpCodes.MATCH_ATTRIBUTE :
        return DTMFilter.SHOW_ATTRIBUTE;
      case OpCodes.FROM_SELF:
      case OpCodes.FROM_ANCESTORS_OR_SELF:
      case OpCodes.FROM_DESCENDANTS_OR_SELF:
        return DTMFilter.SHOW_ALL;
      default:
        if (getOp(0) == OpCodes.OP_MATCHPATTERN)
          return ~DTMFilter.SHOW_ATTRIBUTE
                  & ~DTMFilter.SHOW_DOCUMENT
                  & ~DTMFilter.SHOW_DOCUMENT_FRAGMENT;
        else
          return ~DTMFilter.SHOW_ATTRIBUTE;
      }
    case OpCodes.NODETYPE_ROOT :
      return DTMFilter.SHOW_DOCUMENT | DTMFilter.SHOW_DOCUMENT_FRAGMENT;
    case OpCodes.NODETYPE_FUNCTEST :
      return NodeTest.SHOW_BYFUNCTION;
    case OpCodes.NODENAME :
      switch (axesType)
      {
      case OpCodes.FROM_NAMESPACE :
        return DTMFilter.SHOW_NAMESPACE;
      case OpCodes.FROM_ATTRIBUTES :
      case OpCodes.MATCH_ATTRIBUTE :
        return DTMFilter.SHOW_ATTRIBUTE;

      // break;
      case OpCodes.MATCH_ANY_ANCESTOR :
      case OpCodes.MATCH_IMMEDIATE_ANCESTOR :
        return DTMFilter.SHOW_ELEMENT;

      // break;
      default :
        return DTMFilter.SHOW_ELEMENT;
      }
    default :
      // System.err.println("We should never reach here.");
      return DTMFilter.SHOW_ALL;
    }
  }
 

/**
 * Tell what node type to test, if not DTMFilter.SHOW_ALL.
 *
 * @param whatToShow Bit set defined mainly by
 *        {@link com.sun.org.apache.xml.internal.dtm.DTMFilter}.
 * @return the node type for the whatToShow.  Since whatToShow can specify
 *         multiple types, it will return the first bit tested that is on,
 *         so the caller of this function should take care that this is
 *         the function they really want to call.  If none of the known bits
 *         are set, this function will return zero.
 */
public static int getNodeTypeTest(int whatToShow)
{
  // %REVIEW% Is there a better way?
  if (0 != (whatToShow & DTMFilter.SHOW_ELEMENT))
    return DTM.ELEMENT_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_ATTRIBUTE))
    return DTM.ATTRIBUTE_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_TEXT))
    return DTM.TEXT_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_DOCUMENT))
    return DTM.DOCUMENT_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_DOCUMENT_FRAGMENT))
    return DTM.DOCUMENT_FRAGMENT_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_NAMESPACE))
    return DTM.NAMESPACE_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_COMMENT))
    return DTM.COMMENT_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_PROCESSING_INSTRUCTION))
    return DTM.PROCESSING_INSTRUCTION_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_DOCUMENT_TYPE))
    return DTM.DOCUMENT_TYPE_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_ENTITY))
    return DTM.ENTITY_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_ENTITY_REFERENCE))
    return DTM.ENTITY_REFERENCE_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_NOTATION))
    return DTM.NOTATION_NODE;

  if (0 != (whatToShow & DTMFilter.SHOW_CDATA_SECTION))
    return DTM.CDATA_SECTION_NODE;


  return 0;
}