code: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements. See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership. The ASF licenses this file
   * to you 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.
   */
  /*
   * $Id$
   */
  package org.apache.xalan.processor;
  
  import java.util.Vector;
  
  import org.apache.xalan.templates.Stylesheet;
  import org.apache.xalan.templates.WhiteSpaceInfo;
  import org.apache.xpath.XPath;
  
  import org.xml.sax.Attributes;
  
  /**
   * TransformerFactory for xsl:preserve-space markup.
   * <pre>
   * <!ELEMENT xsl:preserve-space EMPTY>
   * <!ATTLIST xsl:preserve-space elements CDATA #REQUIRED>
   * </pre>
   */
  class ProcessorPreserveSpace extends XSLTElementProcessor
  {
      static final long serialVersionUID = -5552836470051177302L;
  
    /**
     * Receive notification of the start of an preserve-space element.
     *
     * @param handler The calling StylesheetHandler/TemplatesBuilder.
     * @param uri The Namespace URI, or the empty string if the
     *        element has no Namespace URI or if Namespace
     *        processing is not being performed.
     * @param localName The local name (without prefix), or the
     *        empty string if Namespace processing is not being
     *        performed.
     * @param rawName The raw XML 1.0 name (with prefix), or the
     *        empty string if raw names are not available.
     * @param attributes The attributes attached to the element.  If
     *        there are no attributes, it shall be an empty
     *        Attributes object.
     */
    public void startElement(
            StylesheetHandler handler, String uri, String localName, String rawName, 
            Attributes attributes)
              throws org.xml.sax.SAXException
    {
      Stylesheet thisSheet = handler.getStylesheet();
  	WhitespaceInfoPaths paths = new WhitespaceInfoPaths(thisSheet);
      setPropertiesFromAttributes(handler, rawName, attributes, paths);
  
      Vector xpaths = paths.getElements();
  
      for (int i = 0; i < xpaths.size(); i++)
      {
        WhiteSpaceInfo wsi = new WhiteSpaceInfo((XPath) xpaths.elementAt(i), false, thisSheet);
        wsi.setUid(handler.nextUid());
  
        thisSheet.setPreserveSpaces(wsi);
      }
      paths.clearElements();
    }
  }
  