| /* |
| * 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. |
| */ |
| |
| package org.apache.pig.parser; |
| |
| import org.antlr.runtime.tree.CommonTree; |
| |
| public class TreePrinter { |
| |
| public static void printTree(CommonTree tree, int indent) { |
| if( tree != null ) { |
| StringBuilder sb = new StringBuilder(); |
| for ( int i = 0; i < indent; i++ ) |
| sb = sb.append( " " ); |
| |
| System.out.println( sb + tree.getText() ); |
| |
| for ( int i = 0; i < tree.getChildCount(); i++ ) { |
| printTree( (CommonTree)tree.getChild( i ), indent + 1 ); |
| } |
| } |
| } |
| |
| } |