1 /*

     2  * Copyright (c) 1996, 1997, 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  */

    25 package sun.io;

    26 

    27 /**

    28 * A algorithmic conversion from ISO 8859-1 to Unicode

    29 *

    30 * @author Lloyd Honomichl

    31 * @author Asmus Freytag

    32 */

    33 public class ByteToCharISO8859_1 extends ByteToCharConverter {

    34 

    35     // Return the character set id

    36     public String getCharacterEncoding()

    37     {

    38         return "ISO8859_1";

    39     }

    40 

    41     public int flush(char[] output, int outStart, int outEnd) {

    42         // This converter will not buffer any data.

    43         byteOff = charOff = 0;

    44         return 0;

    45     }

    46 

    47     /**

    48     * Algorithmic character conversion

    49     */

    50     public int convert(byte[] input, int inOff, int inEnd,

    51                        char[] output, int outOff, int outEnd)

    52 

    53         throws ConversionBufferFullException

    54     {

    55         int bound = inOff + (outEnd - outOff);

    56         if (bound >= inEnd) {

    57              bound = inEnd;

    58         }

    59         int bytesWritten = inEnd - inOff;

    60 

    61 

    62         // Loop until we hit the end of the input

    63         try {

    64             while(inOff < bound) {

    65                 output[outOff++] = (char) (0xff & input[inOff++]);

    66             }

    67         } finally {

    68             charOff = outOff;

    69             byteOff = inOff;

    70         }

    71 

    72         // If we don't have room for the output, throw an exception

    73         if (bound < inEnd)

    74             throw new ConversionBufferFullException();

    75 

    76         // Return the length written to the output buffer

    77         return bytesWritten;

    78     }

    79 

    80     /*

    81         Reset after finding bad input

    82     */

    83     public void reset() {

    84         byteOff = charOff = 0;

    85     }

    86 

    87 }