jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/util/ParseUtil.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.xml.internal.messaging.saaj.util;

    29 // Cut&paste from sun.net.www.ParseUtil: decode, unescape

    31 public class ParseUtil {

    32     /**

    33      * Un-escape and return the character at position i in string s.

    34      */

    35     private static char unescape(String s, int i) {

    36         return (char) Integer.parseInt(s.substring(i+1,i+3),16);

    37     }

    39     /**

    40      * Returns a new String constructed from the specified String by replacing

    41      * the URL escape sequences and UTF8 encoding with the characters they

    42      * represent.

    43      */

    44     public static String decode(String s) {

    45         StringBuffer sb = new StringBuffer();

    47         int i=0;

    48         while (i<s.length()) {

    49             char c = s.charAt(i);

    50             char c2, c3;

    52             if (c != '%') {

    53                 i++;

    54             } else {

    55                 try {

    56                     c = unescape(s, i);

    57                     i += 3;

    59                     if ((c & 0x80) != 0) {

    60                         switch (c >> 4) {

    61                             case 0xC: case 0xD:

    62                                 c2 = unescape(s, i);

    63                                 i += 3;

    64                                 c = (char)(((c & 0x1f) << 6) | (c2 & 0x3f));

    65                                 break;

    67                             case 0xE:

    68                                 c2 = unescape(s, i);

    69                                 i += 3;

    70                                 c3 = unescape(s, i);

    71                                 i += 3;

    72                                 c = (char)(((c & 0x0f) << 12) |

    73                                            ((c2 & 0x3f) << 6) |

    74                                             (c3 & 0x3f));

    75                                 break;

    77                             default:

    78                                 throw new IllegalArgumentException();

    79                         }

    80                     }

    81                 } catch (NumberFormatException e) {

    82                     throw new IllegalArgumentException();

    83                 }

    84             }

    86             sb.append(c);

    87         }

    89         return sb.toString();

    90     }

    93 }

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