| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1996-1997 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any 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 | } |