Java tutorial
//package com.java2s; /* * Copyright 2006-2010 the original author or authors. * * 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.w3c.dom.*; public class Main { /** * Removes text nodes that are only containing whitespace characters * inside a DOM tree. * * @param element the root node to normalize. */ public static void stripWhitespaceNodes(Node element) { Node node, child; for (child = element.getFirstChild(); child != null; child = node) { node = child.getNextSibling(); stripWhitespaceNodes(child); } if (element.getNodeType() == Node.TEXT_NODE && element.getNodeValue().trim().length() == 0) { element.getParentNode().removeChild(element); } } }