diff options
Diffstat (limited to 'velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/ASTComment.java')
-rw-r--r-- | velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/ASTComment.java | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/ASTComment.java b/velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/ASTComment.java new file mode 100644 index 00000000..b2d3ba2a --- /dev/null +++ b/velocity-engine-core/src/main/java/org/apache/velocity/runtime/parser/node/ASTComment.java @@ -0,0 +1,109 @@ +package org.apache.velocity.runtime.parser.node; + +/* + * 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. + */ + +import org.apache.velocity.context.InternalContextAdapter; +import org.apache.velocity.exception.MethodInvocationException; +import org.apache.velocity.exception.ParseErrorException; +import org.apache.velocity.exception.ResourceNotFoundException; +import org.apache.velocity.runtime.parser.Parser; +import org.apache.velocity.runtime.parser.Token; + +import java.io.IOException; +import java.io.Writer; + +/** + * Represents all comments... + * + * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a> + * @version $Id$ + */ +public class ASTComment extends SimpleNode +{ + private static final char[] ZILCH = "".toCharArray(); + + private char[] carr; + + /** + * @param id + */ + public ASTComment(int id) + { + super(id); + } + + /** + * @param p + * @param id + */ + public ASTComment(Parser p, int id) + { + super(p, id); + } + + /** + * @see org.apache.velocity.runtime.parser.node.SimpleNode#jjtAccept(org.apache.velocity.runtime.parser.node.ParserVisitor, java.lang.Object) + */ + @Override + 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. + * @param context + * @param data + * @return The data object. + */ + @Override + public Object init(InternalContextAdapter context, Object data) + { + Token t = getFirstToken(); + + int loc1 = t.image.indexOf(parser.lineComment()); + int loc2 = t.image.indexOf(parser.blockComment()); + + if (loc1 == -1 && loc2 == -1) + { + carr = ZILCH; + } + else + { + carr = t.image.substring(0, (loc1 == -1) ? loc2 : loc1).toCharArray(); + } + + cleanupParserAndTokens(); + + return data; + } + + /** + * @see org.apache.velocity.runtime.parser.node.SimpleNode#render(org.apache.velocity.context.InternalContextAdapter, java.io.Writer) + */ + @Override + public boolean render(InternalContextAdapter context, Writer writer) + throws IOException, MethodInvocationException, ParseErrorException, ResourceNotFoundException + { + writer.write(carr); + return true; + } + +} |