jdk/src/share/classes/sun/nio/cs/ext/SJIS.java
changeset 13385 15512350dedf
parent 13384 716ed0cb0cea
parent 13383 34e17f628599
child 13386 382651d28f25
--- a/jdk/src/share/classes/sun/nio/cs/ext/SJIS.java	Thu Aug 02 15:37:22 2012 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,164 +0,0 @@
-/*
- * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/*
- */
-
-package sun.nio.cs.ext;
-
-import java.nio.ByteBuffer;
-import java.nio.CharBuffer;
-import java.nio.charset.Charset;
-import java.nio.charset.CharsetDecoder;
-import java.nio.charset.CharsetEncoder;
-import java.nio.charset.CoderResult;
-import sun.nio.cs.HistoricallyNamedCharset;
-
-public class SJIS
-    extends Charset
-    implements HistoricallyNamedCharset
-{
-
-    public SJIS() {
-        super("Shift_JIS", ExtendedCharsets.aliasesFor("Shift_JIS"));
-    }
-
-    public String historicalName() {
-        return "SJIS";
-    }
-
-    public boolean contains(Charset cs) {
-        return ((cs.name().equals("US-ASCII"))
-                || (cs instanceof JIS_X_0201)
-                || (cs instanceof SJIS)
-                || (cs instanceof JIS_X_0208));
-    }
-
-    public CharsetDecoder newDecoder() {
-        return new Decoder(this);
-    }
-
-    public CharsetEncoder newEncoder() {
-
-        // Need to force the replacement byte to 0x3f
-        // because JIS_X_0208_Encoder defines its own
-        // alternative 2 byte substitution to permit it
-        // to exist as a self-standing Encoder
-
-        byte[] replacementBytes = { (byte)0x3f };
-        return new Encoder(this).replaceWith(replacementBytes);
-    }
-
-    static class Decoder extends JIS_X_0208_Decoder
-        implements DelegatableDecoder {
-
-        JIS_X_0201.Decoder jis0201;
-
-        protected Decoder(Charset cs) {
-            super(cs);
-            jis0201 = new JIS_X_0201.Decoder(cs);
-        }
-
-        protected char decodeSingle(int b) {
-            // If the high bits are all off, it's ASCII == Unicode
-            if ((b & 0xFF80) == 0) {
-                return (char)b;
-            }
-            return jis0201.decode(b);
-        }
-
-        protected char decodeDouble(int c1, int c2) {
-            int adjust = c2 < 0x9F ? 1 : 0;
-            int rowOffset = c1 < 0xA0 ? 0x70 : 0xB0;
-            int cellOffset = (adjust == 1) ? (c2 > 0x7F ? 0x20 : 0x1F) : 0x7E;
-            int b1 = ((c1 - rowOffset) << 1) - adjust;
-            int b2 = c2 - cellOffset;
-            return super.decodeDouble(b1, b2);
-        }
-
-        // Make some protected methods public for use by JISAutoDetect
-        public CoderResult decodeLoop(ByteBuffer src, CharBuffer dst) {
-            return super.decodeLoop(src, dst);
-        }
-        public void implReset() {
-            super.implReset();
-        }
-        public CoderResult implFlush(CharBuffer out) {
-            return super.implFlush(out);
-        }
-    }
-
-    static class Encoder extends JIS_X_0208_Encoder {
-
-        private JIS_X_0201.Encoder jis0201;
-
-        private static final short[] j0208Index1 =
-            JIS_X_0208_Encoder.getIndex1();
-        private static final String[] j0208Index2 =
-            JIS_X_0208_Encoder.getIndex2();
-
-        protected Encoder(Charset cs) {
-            super(cs);
-            jis0201 = new JIS_X_0201.Encoder(cs);
-        }
-
-        protected int encodeSingle(char inputChar) {
-            byte b;
-
-            // \u0000 - \u007F map straight through
-            if ((inputChar & 0xFF80) == 0)
-                return (byte)inputChar;
-
-            if ((b = jis0201.encode(inputChar)) == 0)
-                return -1;
-            else
-                return b;
-        }
-
-        protected int encodeDouble(char ch) {
-            int offset = j0208Index1[ch >> 8] << 8;
-            int pos = j0208Index2[offset >> 12].charAt((offset & 0xfff) + (ch & 0xff));
-            if (pos == 0) {
-                /* Zero value indicates this Unicode has no mapping to
-                 * JIS0208.
-                 * We bail here because the JIS -> SJIS algorithm produces
-                 * bogus SJIS values for invalid JIS input.  Zero should be
-                 * the only invalid JIS value in our table.
-                 */
-                return 0;
-            }
-            /*
-             * This algorithm for converting from JIS to SJIS comes from
-             * Ken Lunde's "Understanding Japanese Information Processing",
-             * pg 163.
-             */
-            int c1 = (pos >> 8) & 0xff;
-            int c2 = pos & 0xff;
-            int rowOffset = c1 < 0x5F ? 0x70 : 0xB0;
-            int cellOffset = (c1 % 2 == 1) ? (c2 > 0x5F ? 0x20 : 0x1F) : 0x7E;
-            return ((((c1 + 1 ) >> 1) + rowOffset) << 8) | (c2 + cellOffset);
-        }
-    }
-}