--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/share/classes/com/sun/org/apache/xpath/internal/functions/FuncLast.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,108 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+/*
+ * Copyright 1999-2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * $Id: FuncLast.java,v 1.2.4.1 2005/09/14 20:18:43 jeffsuttor Exp $
+ */
+package com.sun.org.apache.xpath.internal.functions;
+
+import com.sun.org.apache.xml.internal.dtm.DTMIterator;
+import com.sun.org.apache.xpath.internal.XPathContext;
+import com.sun.org.apache.xpath.internal.axes.SubContextList;
+import com.sun.org.apache.xpath.internal.compiler.Compiler;
+import com.sun.org.apache.xpath.internal.objects.XNumber;
+import com.sun.org.apache.xpath.internal.objects.XObject;
+
+
+/**
+ * Execute the Last() function.
+ * @xsl.usage advanced
+ */
+public class FuncLast extends Function
+{
+    static final long serialVersionUID = 9205812403085432943L;
+
+  private boolean m_isTopLevel;
+
+  /**
+   * Figure out if we're executing a toplevel expression.
+   * If so, we can't be inside of a predicate.
+   */
+  public void postCompileStep(Compiler compiler)
+  {
+    m_isTopLevel = compiler.getLocationPathDepth() == -1;
+  }
+
+  /**
+   * Get the position in the current context node list.
+   *
+   * @param xctxt non-null reference to XPath runtime context.
+   *
+   * @return The number of nodes in the list.
+   *
+   * @throws javax.xml.transform.TransformerException
+   */
+  public int getCountOfContextNodeList(XPathContext xctxt)
+          throws javax.xml.transform.TransformerException
+  {
+
+    // assert(null != m_contextNodeList, "m_contextNodeList must be non-null");
+    // If we're in a predicate, then this will return non-null.
+    SubContextList iter = m_isTopLevel ? null : xctxt.getSubContextList();
+
+    // System.out.println("iter: "+iter);
+    if (null != iter)
+      return iter.getLastPos(xctxt);
+
+    DTMIterator cnl = xctxt.getContextNodeList();
+    int count;
+    if(null != cnl)
+    {
+      count = cnl.getLength();
+      // System.out.println("count: "+count);
+    }
+    else
+      count = 0;
+    return count;
+  }
+
+  /**
+   * Execute the function.  The function must return
+   * a valid object.
+   * @param xctxt The current execution context.
+   * @return A valid XObject.
+   *
+   * @throws javax.xml.transform.TransformerException
+   */
+  public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
+  {
+    XNumber xnum = new XNumber((double) getCountOfContextNodeList(xctxt));
+    // System.out.println("last: "+xnum.num());
+    return xnum;
+  }
+
+  /**
+   * No arguments to process, so this does nothing.
+   */
+  public void fixupVariables(java.util.Vector vars, int globalsSize)
+  {
+    // no-op
+  }
+
+}