1 package org.apache.velocity.runtime.parser.node;
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22 import java.io.IOException;
23 import java.io.Writer;
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25 import org.apache.velocity.context.InternalContextAdapter;
26 import org.apache.velocity.exception.MethodInvocationException;
27 import org.apache.velocity.exception.ParseErrorException;
28 import org.apache.velocity.exception.ResourceNotFoundException;
29 import org.apache.velocity.runtime.parser.Parser;
30 import org.apache.velocity.runtime.parser.Token;
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38 public class ASTComment extends SimpleNode
39 {
40 private static final char[] ZILCH = "".toCharArray();
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42 private char[] carr;
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47 public ASTComment(int id)
48 {
49 super(id);
50 }
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56 public ASTComment(Parser p, int id)
57 {
58 super(p, id);
59 }
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64 public Object jjtAccept(ParserVisitor visitor, Object data)
65 {
66 return visitor.visit(this, data);
67 }
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75 public Object init(InternalContextAdapter context, Object data)
76 {
77 Token t = getFirstToken();
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79 int loc1 = t.image.indexOf("##");
80 int loc2 = t.image.indexOf("#*");
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82 if (loc1 == -1 && loc2 == -1)
83 {
84 carr = ZILCH;
85 }
86 else
87 {
88 carr = t.image.substring(0, (loc1 == -1) ? loc2 : loc1).toCharArray();
89 }
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91 return data;
92 }
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97 public boolean render( InternalContextAdapter context, Writer writer)
98 throws IOException, MethodInvocationException, ParseErrorException, ResourceNotFoundException
99 {
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101 if (context.getAllowRendering())
102 {
103 writer.write(carr);
104 }
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106 return true;
107 }
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109 }