Java tutorial
//package com.java2s; /* * eXist Open Source Native XML Database * Copyright (C) 2001, Wolfgang M. Meier (meier@ifs.tu-darmstadt.de) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This library 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 Library General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * $Id: */ public class Main { public final static String encodeAttrMarkup(String str) { final StringBuilder buf = new StringBuilder(); char ch; for (int i = 0; i < str.length(); i++) switch (ch = str.charAt(i)) { case '&': boolean isEntity = false; for (int j = i + 1; j < str.length(); j++) { if (str.charAt(j) == ';') { isEntity = true; break; } if (!Character.isLetter(str.charAt(j))) { break; } } if (isEntity) { buf.append('&'); } else { buf.append("&"); } break; case '<': buf.append("<"); break; case '>': buf.append(">"); break; case '"': buf.append("""); break; default: buf.append(ch); } return buf.toString(); } }