Initial revision

From-SVN: r102074
2005-07-16 00:30:23 +00:00
parent 6f4434b39b
commit f911ba985a
4557 changed files with 1000262 additions and 0 deletions
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+/* IconvDecoder.java --
+   Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.java.nio.charset.iconv;
+
+import gnu.classpath.RawData;
+
+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;
+
+final class IconvDecoder extends CharsetDecoder
+{
+  IconvDecoder(Charset cs, IconvMetaData info)
+  {
+    super(cs, info.averageCharsPerByte(), info.maxCharsPerByte());
+    openIconv(info.iconvName());
+  }
+
+  private RawData data;
+  private int inremaining;
+  private int outremaining;
+
+  private native void openIconv(String name);
+
+  private native int decode(byte[] in, char[] out, int posIn, int remIn,
+                            int posOut, int remOut);
+
+  private native void closeIconv();
+
+  protected CoderResult decodeLoop(ByteBuffer in, CharBuffer out)
+  {
+    int remIn = in.remaining();
+    int inPos = in.position();
+    int outPos = out.position();
+    int remOut = out.remaining();
+    byte[] inArr;
+    int ret;
+
+    if (in.hasArray())
+      inArr = in.array();
+    else
+      {
+	inArr = new byte[remIn];
+	in.get(inArr);
+      }
+
+    if (out.hasArray())
+      {
+	ret = decode(inArr, out.array(), inPos, remIn, outPos, remOut);
+	out.position(outPos + (remOut - outremaining));
+      }
+    else
+      {
+	char[] outArr = new char[remOut];
+	ret = decode(inArr, outArr, inPos, remIn, outPos, remOut);
+	out.put(outArr, 0, (remOut - outremaining));
+      }
+    in.position(inPos + (remIn - inremaining));
+
+    if (ret == 1)
+      return CoderResult.malformedForLength(1);
+
+    if (in.remaining() == 0)
+      return CoderResult.UNDERFLOW;
+    return CoderResult.OVERFLOW;
+  }
+
+  protected void finalize()
+  {
+    closeIconv();
+  }
+}
+
+