package org.apache.velocity.runtime.parser.node;
/*
* Copyright 2000-2004 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.
*/
import org.apache.velocity.runtime.parser.Parser;
import org.apache.velocity.runtime.parser.ParserVisitor;
import org.apache.velocity.runtime.parser.Token;
import org.apache.velocity.context.InternalContextAdapter;
import org.apache.velocity.exception.ResourceNotFoundException;
import org.apache.velocity.exception.ParseErrorException;
import org.apache.velocity.exception.MethodInvocationException;
import java.io.IOException;
import java.io.Writer;
/**
* Represents all comments...
*
* @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
* @version $Id: ASTComment.java 329446 2005-10-29 17:07:04Z henning $
*/
public class ASTComment extends SimpleNode
{
private static final char[] ZILCH = "".toCharArray();
private char[] carr;
public ASTComment(int id)
{
super(id);
}
public ASTComment(Parser p, int id)
{
super(p, id);
}
/** Accept the visitor. **/
public Object jjtAccept(ParserVisitor visitor, Object data)
{
return visitor.visit(this, data);
}
/**
* We need to make sure we catch any of the dreaded MORE tokens.
*/
public Object init(InternalContextAdapter context, Object data)
throws Exception
{
Token t = getFirstToken();
int loc1 = t.image.indexOf("##");
int loc2 = t.image.indexOf("#*");
if (loc1 == -1 && loc2 == -1)
{
carr = ZILCH;
}
else
{
carr = t.image.substring(0, (loc1 == -1) ? loc2 : loc1).toCharArray();
}
return data;
}
public boolean render( InternalContextAdapter context, Writer writer)
throws IOException, MethodInvocationException, ParseErrorException, ResourceNotFoundException
{
if (context.getAllowRendering())
{
writer.write(carr);
}
return true;
}
}