cvs commit: jakarta-velocity/src/java/org/apache/velocity/runtime/parser/node ASTEscape.java

[ge...@locus.apache.org]

geirm       00/11/11 14:41:45

  Added:       src/java/org/apache/velocity/runtime/parser/node
                        ASTEscape.java
  Log:
  Handles the even escape sequences ('\\')*.  These are special in the grammar when they are found in front of a directive.
  
  Revision  Changes    Path
  1.1                  jakarta-velocity/src/java/org/apache/velocity/runtime/parser/node/ASTEscape.java
  
  Index: ASTEscape.java
  ===================================================================
  /* Generated By:JJTree: Do not edit this line. ASTEscape.java */
  
  /*
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  /**
   * This class is responsible for handling Escapes
   *  in VTL.
   * 
   * Please look at the Parser.jjt file which is
   * what controls the generation of this class.
   *
   * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
   * @version $Id: ASTEscape.java,v 1.1 2000/11/11 22:41:45 geirm Exp $ 
  */
  
  package org.apache.velocity.runtime.parser.node;
  
  import java.io.Writer;
  import java.io.IOException;
  
  import org.apache.velocity.Context;
  import org.apache.velocity.runtime.parser.*;
  
  public class ASTEscape extends SimpleNode {
  
      private String strText_ = "";
    
      public ASTEscape(int id) {
          super(id);
      }
      
      public ASTEscape(Parser p, int id) {
          super(p, id);
      }
  
      /** Accept the visitor. **/
      public Object jjtAccept(ParserVisitor visitor, Object data) {
          return visitor.visit(this, data);
      }
      
      public Object init(Context context, Object data) throws Exception
      {
          strText_ =  getFirstToken().image;
          return data;
      }
  
      public boolean render(Context context, Writer writer)
          throws IOException
      {
          writer.write( strText_);
          return true;
      }    
  
  }