| /* |
| * Copyright 2002,2004 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. |
| */ |
| |
| package org.apache.commons.jelly.tags.antlr; |
| |
| import org.apache.commons.jelly.XMLOutput; |
| import org.apache.commons.jelly.TagSupport; |
| import org.apache.commons.jelly.JellyTagException; |
| |
| public class GrammarTag extends TagSupport |
| { |
| public GrammarTag() |
| { |
| } |
| |
| |
| // Tag interface |
| //------------------------------------------------------------------------- |
| |
| public void doTag(final XMLOutput output) throws JellyTagException |
| { |
| String grammar = getBodyText(); |
| |
| AntlrTag antlr = (AntlrTag) findAncestorWithClass( AntlrTag.class ); |
| |
| if ( antlr == null ) |
| { |
| throw new JellyTagException( "<grammar> should only be used within an <antlr> block." ); |
| } |
| |
| antlr.addGrammar( grammar ); |
| } |
| } |