Showing the changes to java/pkg/sun/io/ByteToCharDBCS_ASCII.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,133 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 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 | import sun.nio.cs.ext.DoubleByte; | ||
| 28 | import static sun.nio.cs.CharsetMapping.*; | ||
| 29 | |||
| 30 | public abstract class ByteToCharDBCS_ASCII extends ByteToCharConverter | ||
| 31 | { | ||
| 32 | private boolean savedBytePresent; | ||
| 33 | private int savedByte; | ||
| 34 | |||
| 35 | private DoubleByte.Decoder dec; | ||
| 36 | |||
| 37 | public ByteToCharDBCS_ASCII(DoubleByte.Decoder dec) { | ||
| 38 | super(); | ||
| 39 | savedBytePresent = false; | ||
| 40 | this.dec = dec; | ||
| 41 | } | ||
| 42 | |||
| 43 | char decodeSingle(int b) { | ||
| 44 | return dec.decodeSingle(b); | ||
| 45 | } | ||
| 46 | |||
| 47 | char decodeDouble(int b1, int b2) { | ||
| 48 | return dec.decodeDouble(b1, b2); | ||
| 49 | } | ||
| 50 | |||
| 51 | public int flush(char [] output, int outStart, int outEnd) | ||
| 52 | throws MalformedInputException | ||
| 53 | { | ||
| 54 | |||
| 55 | if (savedBytePresent) { | ||
| 56 | reset(); | ||
| 57 | badInputLength = 0; | ||
| 58 | throw new MalformedInputException(); | ||
| 59 | } | ||
| 60 | |||
| 61 | reset(); | ||
| 62 | return 0; | ||
| 63 | } | ||
| 64 | |||
| 65 | /** | ||
| 66 | * Character conversion | ||
| 67 | */ | ||
| 68 | public int convert(byte[] input, int inOff, int inEnd, | ||
| 69 | char[] output, int outOff, int outEnd) | ||
| 70 | throws UnknownCharacterException, MalformedInputException, | ||
| 71 | ConversionBufferFullException | ||
| 72 | { | ||
| 73 | int inputSize; | ||
| 74 | char outputChar = UNMAPPABLE_DECODING; | ||
| 75 | |||
| 76 | charOff = outOff; | ||
| 77 | byteOff = inOff; | ||
| 78 | |||
| 79 | while(byteOff < inEnd) | ||
| 80 | { | ||
| 81 | int byte1; | ||
| 82 | |||
| 83 | if (!savedBytePresent) { | ||
| 84 | byte1 = input[byteOff] & 0xff; | ||
| 85 | inputSize = 1; | ||
| 86 | } else { | ||
| 87 | byte1 = savedByte; | ||
| 88 | savedBytePresent = false; | ||
| 89 | inputSize = 0; | ||
| 90 | } | ||
| 91 | |||
| 92 | outputChar = decodeSingle(byte1); | ||
| 93 | if (outputChar == UNMAPPABLE_DECODING) { | ||
| 94 | |||
| 95 | if (byteOff + inputSize >= inEnd) { | ||
| 96 | savedByte = byte1; | ||
| 97 | savedBytePresent = true; | ||
| 98 | byteOff += inputSize; | ||
| 99 | break; | ||
| 100 | } | ||
| 101 | |||
| 102 | outputChar = decodeDouble(byte1, input[byteOff+inputSize] & 0xff); | ||
| 103 | inputSize++; | ||
| 104 | } | ||
| 105 | |||
| 106 | if (outputChar == UNMAPPABLE_DECODING) { | ||
| 107 | if (subMode) | ||
| 108 | outputChar = subChars[0]; | ||
| 109 | else { | ||
| 110 | badInputLength = inputSize; | ||
| 111 | throw new UnknownCharacterException(); | ||
| 112 | } | ||
| 113 | } | ||
| 114 | |||
| 115 | if (charOff >= outEnd) | ||
| 116 | throw new ConversionBufferFullException(); | ||
| 117 | |||
| 118 | output[charOff++] = outputChar; | ||
| 119 | byteOff += inputSize; | ||
| 120 | |||
| 121 | } | ||
| 122 | |||
| 123 | return charOff - outOff; | ||
| 124 | } | ||
| 125 | |||
| 126 | /** | ||
| 127 | * Resets the converter. | ||
| 128 | */ | ||
| 129 | public void reset() { | ||
| 130 | charOff = byteOff = 0; | ||
| 131 | savedBytePresent = false; | ||
| 132 | } | ||
| 133 | } | ||