| /* |
| * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| /* |
| * The Original Code is HAT. The Initial Developer of the |
| * Original Code is Bill Foote, with contributions from others |
| * at JavaSoft/Sun. |
| */ |
| |
| package com.sun.tools.hat.internal.util; |
| import java.util.*; |
| |
| /** |
| * Miscellaneous functions I couldn't think of a good place to put. |
| * |
| * @author Bill Foote |
| */ |
| |
| |
| public class Misc { |
| |
| private static char[] digits = { '0', '1', '2', '3', '4', '5', '6', '7', |
| '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; |
| |
| public final static String toHex(int addr) { |
| char[] buf = new char[8]; |
| int i = 0; |
| for (int s = 28; s >= 0; s -= 4) { |
| buf[i++] = digits[(addr >> s) & 0xf]; |
| } |
| return "0x" + new String(buf); |
| } |
| |
| public final static String toHex(long addr) { |
| return "0x" + Long.toHexString(addr); |
| } |
| |
| public final static long parseHex(String value) { |
| long result = 0; |
| if (value.length() < 2 || value.charAt(0) != '0' || |
| value.charAt(1) != 'x') { |
| return -1L; |
| } |
| for(int i = 2; i < value.length(); i++) { |
| result *= 16; |
| char ch = value.charAt(i); |
| if (ch >= '0' && ch <= '9') { |
| result += (ch - '0'); |
| } else if (ch >= 'a' && ch <= 'f') { |
| result += (ch - 'a') + 10; |
| } else if (ch >= 'A' && ch <= 'F') { |
| result += (ch - 'A') + 10; |
| } else { |
| throw new NumberFormatException("" + ch |
| + " is not a valid hex digit"); |
| } |
| } |
| return result; |
| } |
| |
| public static String encodeHtml(String str) { |
| final int len = str.length(); |
| StringBuilder sb = new StringBuilder(); |
| for (int i = 0; i < len; i++) { |
| char ch = str.charAt(i); |
| if (ch == '<') { |
| sb.append("<"); |
| } else if (ch == '>') { |
| sb.append(">"); |
| } else if (ch == '"') { |
| sb.append("""); |
| } else if (ch == '\'') { |
| sb.append("'"); |
| } else if (ch == '&') { |
| sb.append("&"); |
| } else if (ch < ' ') { |
| sb.append("&#" + Integer.toString(ch) + ";"); |
| } else { |
| int c = (ch & 0xFFFF); |
| if (c > 127) { |
| sb.append("&#" + Integer.toString(c) + ";"); |
| } else { |
| sb.append(ch); |
| } |
| } |
| } |
| return sb.toString(); |
| } |
| } |