Java tutorial
//package com.java2s; /* * Copyright (c) 2001-2011 Convertigo SA. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation; either version 3 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see<http://www.gnu.org/licenses/>. * * $URL$ * $Author$ * $Revision$ * $Date$ */ public class Main { public static String stripNonValidXMLCharacters(String text) { if (text == null || ("".equals(text))) { return ""; } StringBuilder sb = new StringBuilder(); for (int i = 0; i < text.length(); i++) { int codePoint = text.codePointAt(i); if (codePoint > 0xFFFF) { i++; } if ((codePoint == 0x9) || (codePoint == 0xA) || (codePoint == 0xD) || ((codePoint >= 0x20) && (codePoint <= 0xD7FF)) || ((codePoint >= 0xE000) && (codePoint <= 0xFFFD)) || ((codePoint >= 0x10000) && (codePoint <= 0x10FFFF))) { sb.appendCodePoint(codePoint); } } return sb.toString(); } }