1 package org.apache.velocity.runtime.parser.node;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.io.IOException;
23 import java.io.Writer;
24
25 import org.apache.velocity.context.InternalContextAdapter;
26 import org.apache.velocity.runtime.parser.Parser;
27
28 /**
29 * This class is responsible for handling Escapes
30 * in VTL.
31 *
32 * Please look at the Parser.jjt file which is
33 * what controls the generation of this class.
34 *
35 * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
36 * @version $Id: ASTEscape.java 517553 2007-03-13 06:09:58Z wglass $
37 */
38 public class ASTEscape extends SimpleNode
39 {
40 /** Used by the parser */
41 public String val;
42 private char[] ctext;
43
44 /**
45 * @param id
46 */
47 public ASTEscape(int id)
48 {
49 super(id);
50 }
51
52 /**
53 * @param p
54 * @param id
55 */
56 public ASTEscape(Parser p, int id)
57 {
58 super(p, id);
59 }
60
61 /**
62 * @see org.apache.velocity.runtime.parser.node.SimpleNode#jjtAccept(org.apache.velocity.runtime.parser.node.ParserVisitor, java.lang.Object)
63 */
64 public Object jjtAccept(ParserVisitor visitor, Object data)
65 {
66 return visitor.visit(this, data);
67 }
68
69 /**
70 * @see org.apache.velocity.runtime.parser.node.SimpleNode#init(org.apache.velocity.context.InternalContextAdapter, java.lang.Object)
71 */
72 public Object init( InternalContextAdapter context, Object data)
73 {
74 ctext = val.toCharArray();
75 return data;
76 }
77
78 /**
79 * @see org.apache.velocity.runtime.parser.node.SimpleNode#render(org.apache.velocity.context.InternalContextAdapter, java.io.Writer)
80 */
81 public boolean render( InternalContextAdapter context, Writer writer)
82 throws IOException
83 {
84 if (context.getAllowRendering())
85 {
86 writer.write(ctext);
87 }
88 return true;
89 }
90 }