1 /* |
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2 * Copyright (c) 1996, 1998, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.io; |
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27 |
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28 /** |
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29 * The SJIS converters follow the Shift JIS definition in the JIS |
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30 * X0208:1997 standard as much as possible. The MS932 converters must |
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31 * be used where the Microsoft Code Page 932 character repertoire and |
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32 * Unicode mappings are required. |
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33 * |
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34 * @author Limin Shi |
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35 * @author Mark Son-Bell |
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36 */ |
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37 |
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38 public class ByteToCharSJIS extends ByteToCharJIS0208 { |
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39 ByteToCharJIS0201 bcJIS0201 = new ByteToCharJIS0201(); |
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40 |
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41 public String getCharacterEncoding() { |
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42 return "SJIS"; |
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43 } |
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44 |
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45 protected char convSingleByte(int b) { |
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46 // If the high bits are all off, it's ASCII == Unicode |
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47 if ((b & 0xFF80) == 0) { |
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48 return (char)b; |
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49 } |
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50 return bcJIS0201.getUnicode(b); |
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51 } |
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52 |
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53 protected char getUnicode(int c1, int c2) { |
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54 int adjust = c2 < 0x9F ? 1 : 0; |
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55 int rowOffset = c1 < 0xA0 ? 0x70 : 0xB0; |
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56 int cellOffset = (adjust == 1) ? (c2 > 0x7F ? 0x20 : 0x1F) : 0x7E; |
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57 int b1 = ((c1 - rowOffset) << 1) - adjust; |
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58 int b2 = c2 - cellOffset; |
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59 return super.getUnicode(b1, b2); |
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60 } |
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61 |
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62 String prt(int i) { |
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63 return Integer.toString(i,16); |
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64 } |
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65 } |
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