0N/A/*
2362N/A * Copyright (c) 1996, 1998, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/Apackage sun.io;
0N/A
0N/A/**
0N/A * @author Limin Shi
0N/A * @author Mark Son-Bell
0N/A */
0N/A
0N/Apublic class CharToByteSJIS extends CharToByteJIS0208 {
0N/A CharToByteJIS0201 cbJIS0201 = new CharToByteJIS0201();
0N/A
0N/A public String getCharacterEncoding() {
0N/A return "SJIS";
0N/A }
0N/A
0N/A protected int convSingleByte(char inputChar, byte[] outputByte) {
0N/A byte b;
0N/A
0N/A // \u0000 - \u007F map straight through
0N/A if ((inputChar & 0xFF80) == 0) {
0N/A outputByte[0] = (byte)inputChar;
0N/A return 1;
0N/A }
0N/A
0N/A if ((b = cbJIS0201.getNative(inputChar)) == 0)
0N/A return 0;
0N/A
0N/A outputByte[0] = b;
0N/A return 1;
0N/A }
0N/A
0N/A protected int getNative(char ch) {
0N/A int offset = index1[ch >> 8] << 8;
0N/A int pos = index2[offset >> 12].charAt((offset & 0xfff) + (ch & 0xff));
0N/A if (pos == 0) {
0N/A /* Zero value indicates this Unicode has no mapping to JIS0208.
0N/A * We bail here because the JIS -> SJIS algorithm produces
0N/A * bogus SJIS values for invalid JIS input. Zero should be the
0N/A * only invalid JIS value in our table.
0N/A */
0N/A return 0;
0N/A }
0N/A /*
0N/A * This algorithm for converting from JIS to SJIS comes from Ken Lunde's
0N/A * "Understanding Japanese Information Processing", pg 163.
0N/A */
0N/A int c1 = (pos >> 8) & 0xff;
0N/A int c2 = pos & 0xff;
0N/A int rowOffset = c1 < 0x5F ? 0x70 : 0xB0;
0N/A int cellOffset = (c1 % 2 == 1) ? (c2 > 0x5F ? 0x20 : 0x1F) : 0x7E;
0N/A return ((((c1 + 1 ) >> 1) + rowOffset) << 8) | (c2 + cellOffset);
0N/A }
0N/A}