| /* |
| * Copyright (c) 1997, 2012, 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. |
| */ |
| |
| package com.sun.xml.internal.messaging.saaj.util; |
| |
| |
| // Cut&paste from sun.net.www.ParseUtil: decode, unescape |
| |
| public class ParseUtil { |
| /** |
| * Un-escape and return the character at position i in string s. |
| */ |
| private static char unescape(String s, int i) { |
| return (char) Integer.parseInt(s.substring(i+1,i+3),16); |
| } |
| |
| /** |
| * Returns a new String constructed from the specified String by replacing |
| * the URL escape sequences and UTF8 encoding with the characters they |
| * represent. |
| */ |
| public static String decode(String s) { |
| StringBuilder sb = new StringBuilder(); |
| |
| int i=0; |
| while (i<s.length()) { |
| char c = s.charAt(i); |
| char c2, c3; |
| |
| if (c != '%') { |
| i++; |
| } else { |
| try { |
| c = unescape(s, i); |
| i += 3; |
| |
| if ((c & 0x80) != 0) { |
| switch (c >> 4) { |
| case 0xC: case 0xD: |
| c2 = unescape(s, i); |
| i += 3; |
| c = (char)(((c & 0x1f) << 6) | (c2 & 0x3f)); |
| break; |
| |
| case 0xE: |
| c2 = unescape(s, i); |
| i += 3; |
| c3 = unescape(s, i); |
| i += 3; |
| c = (char)(((c & 0x0f) << 12) | |
| ((c2 & 0x3f) << 6) | |
| (c3 & 0x3f)); |
| break; |
| |
| default: |
| throw new IllegalArgumentException(); |
| } |
| } |
| } catch (NumberFormatException e) { |
| throw new IllegalArgumentException(); |
| } |
| } |
| |
| sb.append(c); |
| } |
| |
| return sb.toString(); |
| } |
| |
| |
| } |