JIS0201.h: New file, generated from Unicode table.

	* gnu/gcj/convert/JIS0201.h:  New file, generated from Unicode table.
	* gnu/gcj/convert/Input_JavaSrc.java: New BytesToUnicode class.
	* gnu/gcj/convert/Input_SJIS.java: New BytesToUnicode class.
	* gnu/gcj/convert/Output_EUCJIS.java:  New UnicodeToBytes class.
	* gnu/gcj/convert/Output_SJIS.java:  New UnicodeToBytes class.
	* gnu/gcj/convert/natInput_EUCJIS.cc:  New file.
	* gnu/gcj/convert/natInput_SJIS.cc:  New file.
	* gnu/gcj/convert/natOutput_EUCJIS.cc:  New file.
	* gnu/gcj/convert/natOutput_SJIS.cc:  New file.
	* gnu/gcj/convert/make-trie.c:  New file: functions to make a trie.
	* gnu/gcj/convert/gen-from-JIS.c:  Invoke make-trie for output.
	* gnu/gcj/convert/Unicode_to_JIS.cc:  New generated trie table.

From-SVN: r26503

diff --git a/libjava/gnu/gcj/convert/natOutput_SJIS.cc b/libjava/gnu/gcj/convert/natOutput_SJIS.cc
new file mode 100644 (file)
index 0000000..66be27b
--- /dev/null
+++ b/libjava/gnu/gcj/convert/natOutput_SJIS.cc
@@ -0,0 +1,72 @@
+/* Copyright (C) 1999  Cygnus Solutions
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <cni.h>
+#include <gnu/gcj/convert/Output_SJIS.h>
+
+extern unsigned short Unicode_to_JIS[];
+
+extern int trie_lookup (unsigned short *trie, unsigned short key);
+
+static jint
+convert_TO_SJIS (gnu::gcj::convert::Output_SJIS *encoder,
+                         jchar *ptr, jint inlength)
+{
+  int orig_inlength = inlength;
+  jint outbuf_length = encoder->buf->length;
+  for (;;)
+    {
+      if (encoder->count >= outbuf_length)
+       break;
+      if (encoder->pending >= 0)
+       {
+         elements(encoder->buf)[encoder->count++] = encoder->pending;
+         encoder->pending = -1;
+         continue;
+       }
+      if (inlength == 0)
+       break;
+      jchar ch = *ptr++;
+      inlength--;
+      unsigned short val = trie_lookup(Unicode_to_JIS, ch);
+      if (val < 0xFF)
+       {
+         if (val == 0xffff)
+           val = '?';
+       }
+      else
+       {
+         int b1 = val >> 8;
+         int b2 = val & 0xff;
+         // From Lunde: "CJKV Informatio Processing", O'Reilly, 1999:
+         int rowOffset = b1 < 95 ? 112 : 176;
+         int cellOffset = (b1 & 1) != 0 ? (b2 > 95 ? 32 : 31) : 126;
+         b1 = ((b1 + 1) >> 1) + rowOffset;
+         b2 += cellOffset;
+         val = b1;
+         encoder->pending = b2;
+       }
+      elements(encoder->buf)[encoder->count++] = val;
+    }
+  return orig_inlength - inlength;
+}
+
+jint
+gnu::gcj::convert::Output_SJIS::write (jcharArray inbuffer,
+                                        jint inpos, jint inlength)
+{
+  return convert_TO_SJIS(this, &elements(inbuffer)[inpos], inlength);
+}
+
+jint
+gnu::gcj::convert::Output_SJIS::write (jstring str, jint inpos,
+                                        jint inlength, jcharArray)
+{
+  return convert_TO_SJIS(this, _Jv_GetStringChars(str)+inpos, inlength);
+}