jdk/src/share/classes/sun/nio/cs/ext/IBM942C.java
changeset 2 90ce3da70b43
child 2921 d9d491a5a169
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/nio/cs/ext/IBM942C.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2003-2004 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ */
+
+package sun.nio.cs.ext;
+
+import java.nio.charset.Charset;
+import java.nio.charset.CharsetDecoder;
+import java.nio.charset.CharsetEncoder;
+import java.nio.charset.CharacterCodingException;
+import sun.nio.cs.HistoricallyNamedCharset;
+
+public class IBM942C extends Charset implements HistoricallyNamedCharset
+{
+
+    public IBM942C() {
+        super("x-IBM942C", ExtendedCharsets.aliasesFor("x-IBM942C"));
+    }
+
+    public String historicalName() {
+        return "Cp942C";
+    }
+
+    public boolean contains(Charset cs) {
+        return ((cs.name().equals("US-ASCII"))
+                || (cs instanceof IBM942C));
+    }
+
+    public CharsetDecoder newDecoder() {
+        return new Decoder(this);
+    }
+
+    public CharsetEncoder newEncoder() {
+        return new Encoder(this);
+    }
+
+    private static class Decoder extends IBM942.Decoder {
+        protected static final String singleByteToChar;
+
+        static {
+          String indexs = "";
+          for (char c = '\0'; c < '\u0080'; ++c) indexs += c;
+              singleByteToChar = indexs +
+                                 IBM942.Decoder.singleByteToChar.substring(indexs.length());
+        }
+
+        public Decoder(Charset cs) {
+            super(cs, singleByteToChar);
+        }
+    }
+
+    private static class Encoder extends IBM942.Encoder {
+
+   protected static final short index1[];
+   protected static final String index2a;
+   protected static final int shift = 5;
+
+        static {
+
+            String indexs = "";
+            for (char c = '\0'; c < '\u0080'; ++c) indexs += c;
+                index2a = IBM942.Encoder.index2a + indexs;
+
+            int o = IBM942.Encoder.index2a.length() + 15000;
+            index1 = new short[IBM942.Encoder.index1.length];
+            System.arraycopy(IBM942.Encoder.index1, 0, index1, 0, IBM942.Encoder.index1.length);
+
+            for (int i = 0; i * (1<<shift) < 128; ++i) {
+                index1[i] = (short)(o + i * (1<<shift));
+            }
+        }
+
+        public Encoder(Charset cs) {
+            super(cs, index1, index2a);
+        }
+    }
+}