Update.

1998-04-25 18:39  Ulrich Drepper  <drepper@cygnus.com>

	* iconvdata/Makefile: Use gap method for iso8859-5, iso8859-7,
	iso8859-8 and iso8859-10.
	* iconvdata/iso8859-5.c: Change to use gap method.
	* iconvdata/iso8859-7.c: Likewise.
	* iconvdata/iso8859-8.c: Likewise.
	* iconvdata/iso8859-10.c: Likewise.

	* iconvdata/Makefile: Add rules for ISO-2022-JP module.
	* iconv/skeleton.c: Allow END_LOOP do be defined and use it at the
	end of the loop.
	* iconvdata/iso-2022-jp.c: New file.

	* iconvdata/ksc5601.c: Don't use uint16_t to represent byte sequence.
	* iconvdata/ksc5601.h: Unify function interfaces.
	* iconvdata/euckr.c: Adapt for changed ksc5601.h interface.
	* iconvdata/uhc.c: Likewise.

	* iconvdata/gb2312.h: Use correct types.

	* iconvdata/iso646.c (gconv_open): Correctly initialize the character
	size elements of data.

1 files changed, 693 insertions, 0 deletions

diff --git a/iconvdata/iso-2022-jp.c b/iconvdata/iso-2022-jp.c
new file mode 100644
index 0000000..cb4257b
--- /dev/null
+++ b/iconvdata/iso-2022-jp.c
@@ -0,0 +1,693 @@
+/* Conversion module for ISO-2022-JP.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <gconv.h>
+#include <stdint.h>
+#include <string.h>
+#include "jis0201.h"
+#include "jis0212.h"
+#include "jis0201.h"
+#include "gb2312.h"
+#include "ksc5601.h"
+#include "iso8859-7jp.h"
+
+/* This makes obvious what everybody knows: 0x1b is the Esc character.  */
+#define ESC 0x1b
+
+/* We provide our own initialization and destructor function.  */
+#define DEFINE_INIT	0
+#define DEFINE_FINI	0
+
+/* Definitions used in the body of the `gconv' function.  */
+#define FROM_LOOP		from_iso2022jp
+#define TO_LOOP			to_iso2022jp
+#define MIN_NEEDED_FROM		1
+#define MAX_NEEDED_FROM		4
+#define MIN_NEEDED_TO		4
+#define FROM_DIRECTION		dir == from_iso2022jp
+#define PREPARE_LOOP \
+  enum direction dir = ((struct iso2022jp_data *) step->data)->dir;	      \
+  enum variant var = ((struct iso2022jp_data *) step->data)->var;	      \
+  int set = data->statep->count;
+#define END_LOOP \
+  data->statep->count = set;
+#define EXTRA_LOOP_ARGS		, var, set
+
+
+/* Direction of the transformation.  */
+enum direction
+{
+  illegal_dir,
+  to_iso2022jp,
+  from_iso2022jp
+};
+
+/* We handle ISO-2022-jp and ISO-2022-JP-2 here.  */
+enum variant
+{
+  illegal_var,
+  iso2022jp,
+  iso2022jp2
+};
+
+
+struct iso2022jp_data
+{
+  enum direction dir;
+  enum variant var;
+  mbstate_t save_state;
+};
+
+
+/* The COUNT element of the state keeps track of the currently selected
+   character set.  The possible values are:  */
+enum
+{
+  ASCII_set = 0,
+  JISX0208_1978_set,
+  JISX0208_1983_set,
+  JISX0201_set,
+  GB2312_set,
+  KSC5601_set,
+  JISX0212_set,
+  ISO88591_set,
+  ISO88597_set
+};
+
+
+int
+gconv_init (struct gconv_step *step)
+{
+  /* Determine which direction.  */
+  struct iso2022jp_data *new_data;
+  enum direction dir = illegal_dir;
+  enum variant var;
+  int result;
+
+  if (__strcasecmp (step->from_name, "ISO-2022-JP//") == 0)
+    {
+      dir = from_iso2022jp;
+      var = iso2022jp;
+    }
+  else if (__strcasecmp (step->to_name, "ISO-2022-JP//") == 0)
+    {
+      dir = to_iso2022jp;
+      var = iso2022jp;
+    }
+  else if (__strcasecmp (step->from_name, "ISO-2022-JP-2//") == 0)
+    {
+      dir = from_iso2022jp;
+      var = iso2022jp2;
+    }
+  else if (__strcasecmp (step->to_name, "ISO-2022-JP-2//") == 0)
+    {
+      dir = to_iso2022jp;
+      var = iso2022jp2;
+    }
+
+  result = GCONV_NOCONV;
+  if (dir != illegal_dir
+      && ((new_data
+	   = (struct iso2022jp_data *) malloc (sizeof (struct iso2022jp_data)))
+	  != NULL))
+    {
+      new_data->dir = dir;
+      new_data->var = var;
+      step->data = new_data;
+
+      if (dir == from_iso2022jp)
+	{
+	  step->min_needed_from = MIN_NEEDED_FROM;
+	  step->max_needed_from = MAX_NEEDED_FROM;
+	  step->min_needed_to = MIN_NEEDED_TO;
+	  step->max_needed_to = MIN_NEEDED_TO;
+	}
+      else
+	{
+	  step->min_needed_from = MIN_NEEDED_TO;
+	  step->max_needed_from = MAX_NEEDED_TO;
+	  step->min_needed_to = MIN_NEEDED_FROM;
+	  step->max_needed_to = MIN_NEEDED_FROM + 2;
+	}
+
+      /* Yes, this is a stateful encoding.  */
+      step->stateful = 1;
+
+      result = GCONV_OK;
+    }
+
+  return result;
+}
+
+
+void
+gconv_end (struct gconv_step *data)
+{
+  free (data->data);
+}
+
+
+/* Since this is a stateful encoding we have to provide code which resets
+   the output state to the initial state.  This has to be done during the
+   flushing.  */
+#define EMIT_SHIFT_TO_INIT \
+  if (data->statep->count != 0)						      \
+    {									      \
+      enum direction dir = ((struct iso2022jp_data *) step->data)->dir;	      \
+									      \
+      if (dir == from_iso2022jp)					      \
+	/* It's easy, we don't have to emit anything, we just reset the	      \
+	   state for the input.  */					      \
+	data->statep->count = 0;					      \
+      else								      \
+	{								      \
+	  char *outbuf = data->outbuf;					      \
+	  								      \
+	  /* We are not in the initial state.  To switch back we have	      \
+	     to emit the sequence `Esc ( B'.  */			      \
+	  if (outbuf + 3 > data->outbufend)				      \
+	    /* We don't have enough room in the output buffer.  */	      \
+	    status = GCONV_FULL_OUTPUT;					      \
+	  else								      \
+	    {								      \
+	      /* Write out the shift sequence.  */			      \
+	      *outbuf++ = ESC;						      \
+	      *outbuf++ = '(';						      \
+	      *outbuf++ = 'B';						      \
+	      data->outbuf = outbuf;					      \
+	      data->statep->count = 0;					      \
+	    }								      \
+	}								      \
+    }
+
+
+/* Since we might have to reset input pointer we must be able to save
+   and retore the state.  */
+#define SAVE_RESET_STATE(Save) \
+  if (Save)								      \
+    ((struct iso2022jp_data *) step->data)->save_state.count		      \
+      = data->statep->count;						      \
+  else									      \
+    data->statep->count							      \
+      = ((struct iso2022jp_data *) step->data)->save_state.count
+
+
+/* First define the conversion function from ISO-2022-JP to UCS4.  */
+#define MIN_NEEDED_INPUT	MIN_NEEDED_FROM
+#define MAX_NEEDED_INPUT	MAX_NEEDED_FROM
+#define MIN_NEEDED_OUTPUT	MIN_NEEDED_TO
+#define LOOPFCT			FROM_LOOP
+#define BODY \
+  {									      \
+    uint32_t ch = *inptr;						      \
+									      \
+    /* This is a 7bit character set, disallow all 8bit characters.  */	      \
+    if (ch > 0x7f)							      \
+      {									      \
+	result = GCONV_ILLEGAL_INPUT;					      \
+	break;								      \
+      }									      \
+									      \
+    /* Recognize escape sequences.  */					      \
+    if (ch == ESC)							      \
+      {									      \
+	/* We now must be prepared to read two to three more		      \
+	   chracters.  If we have a match in the first character but	      \
+	   then the input buffer ends we terminate with an error since	      \
+	   we must not risk missing an escape sequence just because it	      \
+	   is not entirely in the current input buffer.  */		      \
+	if (inptr + 2 >= inbufend					      \
+	    || (var == iso2022jp2 && inptr[1] == '$' && inptr[2] == '('	      \
+		&& inptr +3 >= inbufend))				      \
+	  {								      \
+	    /* Not enough input available.  */				      \
+	    result = GCONV_EMPTY_INPUT;					      \
+	    break;							      \
+	  }								      \
+									      \
+	if (inptr[1] == '(')						      \
+	  {								      \
+	    if (inptr[2] = 'B')						      \
+	      {								      \
+		/* ASCII selected.  */					      \
+		set = ASCII_set;					      \
+		inptr += 3;						      \
+		continue;						      \
+	      }								      \
+	    else if (inptr[2] == 'J')					      \
+	      {								      \
+		/* JIS X 0201 selected.  */				      \
+		set = JISX0201_set;					      \
+		inptr += 3;						      \
+		continue;						      \
+	      }								      \
+	  }								      \
+	else if (inptr[1] == '$')					      \
+	  {								      \
+	    if (inptr[2] == '@')					      \
+	      {								      \
+		/* JIS X 0208-1978 selected.  */			      \
+		set = JISX0208_1978_set;				      \
+		inptr += 3;						      \
+		continue;						      \
+	      }								      \
+	    else if (inptr[2] == 'B')					      \
+	      {								      \
+		/* JIS X 0208-1983 selected.  */			      \
+		set = JISX0208_1983_set;				      \
+		inptr += 3;						      \
+		continue;						      \
+	      }								      \
+	    else if (var == iso2022jp2)					      \
+	      {								      \
+		if (inptr[2] == 'A')					      \
+		  {							      \
+		    /* GB 2312-1980 selected.  */			      \
+		    set = GB2312_set;					      \
+		    inptr += 3;						      \
+		    continue;						      \
+		  }							      \
+		else if (inptr[2] == '(')				      \
+		  {							      \
+		    if (inptr[3] == 'C')				      \
+		      {							      \
+			/* KSC 5601-1987 selected.  */			      \
+			set = KSC5601_set;				      \
+			inptr += 4;					      \
+			continue;					      \
+		      }							      \
+		    else (inptr[3] == 'D')				      \
+		      {							      \
+			/* JIS X 0212-1990 selected.  */		      \
+			set = JISX0212_set;				      \
+			inptr += 4;					      \
+			continue;					      \
+		      }							      \
+		  }							      \
+	      }								      \
+	  }								      \
+	else if (var == iso2022jp2 && inptr[1] == '.')			      \
+	  {								      \
+	    if (inptr[2] == 'A')					      \
+	      {								      \
+		/* ISO 8859-1-GR selected.  */				      \
+		set = ISO88591_set;					      \
+		inptr += 3;						      \
+		continue;						      \
+	      }								      \
+	    else if (inptr[2] == 'F')					      \
+	      {								      \
+		/* ISO 8859-7-GR selected.  */				      \
+		set = ISO88597_set;					      \
+		inptr += 3;						      \
+		continue;						      \
+	      }								      \
+	  }								      \
+      }									      \
+									      \
+    if (set == ASCII_set						      \
+	|| (var < ISO88591_set && (ch < 0x21 || ch == 0x7f))		      \
+	|| (var >= ISO88591_set && ch < 0x20))				      \
+      /* Almost done, just advance the input pointer.  */		      \
+      ++inptr;								      \
+    else if (set == JISX0201_set)					      \
+      {									      \
+	/* Use the JIS X 0201 table.  */				      \
+	ch = jisx0201_to_ucs4 (ch + 0x80);				      \
+	if (ch == UNKNOWN_10646_CHAR)					      \
+	  {								      \
+	    result = GCONV_ILLEGAL_INPUT;				      \
+	    break;							      \
+	  }								      \
+	++inptr;							      \
+      }									      \
+    else if (set == ISO88591_set)					      \
+      {									      \
+	/* This is quite easy.  All characters are defined and the	      \
+	   ISO 10646 value is computed by adding 0x80.  */		      \
+	ch += 0x80;							      \
+	++inptr;							      \
+      }									      \
+    else if (set == ISO88597_set)					      \
+      {									      \
+	/* We use the table from the ISO 8859-7 module.  */		      \
+	ch = iso88597_to_ucs4[ch - 0x20];				      \
+	if (ch == 0)							      \
+	  {								      \
+	    result = GCONV_ILLEGAL_INPUT;				      \
+	    break;							      \
+	  }								      \
+	++inptr;							      \
+      }									      \
+    else								      \
+      {									      \
+	if (set == JISX0208_1978_set || set == JISX0208_1983_set)	      \
+	  /* XXX I don't have the tables for these two old variants of	      \
+	     JIS X 0208.  Therefore I'm using the tables for JIS X	      \
+	     0208-1990.  If somebody has problems with this please	      \
+	     provide the appropriate tables.  */			      \
+	  ch = jisx0208_to_ucs4 (&inptr,				      \
+				 NEED_LENGTH_TEST ? inbufend - inptr : 2, 0); \
+	else if (set == JISX0212_set)					      \
+	  /* Use the JIS X 0212 table.  */				      \
+	  ch = jisx0212_to_ucs4 (&inptr,				      \
+				 NEED_LENGTH_TEST ? inbufend - inptr : 2, 0); \
+	else if (set == GB2312_set)					      \
+	  /* Use the GB 2312 table.  */					      \
+	  ch = gb2312_to_ucs4 (&inptr,					      \
+			       NEED_LENGTH_TEST ? inbufend - inptr : 2, 0);   \
+	else								      \
+	  {								      \
+	    assert (set == KSC5601_set);				      \
+									      \
+	    /* Use the KSC 5601 table.  */				      \
+	    ch = ksc5601_to_ucs4 (&inptr,				      \
+				  NEED_LENGTH_TEST ? inbufend - inptr : 2,    \
+				  0);					      \
+	  }								      \
+									      \
+	if (NEED_LENGTH_TEST && ch == 0)				      \
+	  {								      \
+	    result = GCONV_EMPTY_INPUT;					      \
+	    break;							      \
+	  }								      \
+	else if (ch == UNKNOWN_10646_CHAR)				      \
+	  {								      \
+	    result = GCONV_ILLEGAL_INPUT;				      \
+	    break;							      \
+	  }								      \
+      }									      \
+									      \
+    *((uint32_t *) outptr)++ = ch;					      \
+  }
+#define EXTRA_LOOP_DECLS	, enum variant var, int set
+#include <iconv/loop.c>
+
+
+/* Next, define the other direction.  */
+#define MIN_NEEDED_INPUT	MIN_NEEDED_TO
+#define MIN_NEEDED_OUTPUT	MIN_NEEDED_FROM
+#define MAX_NEEDED_OUTPUT	(MAX_NEEDED_FROM + 2)
+#define LOOPFCT			TO_LOOP
+#define BODY \
+  {									      \
+    unsigned char ch;							      \
+    size_t written = 0;							      \
+									      \
+    ch = *((uint32_t *) inptr);						      \
+									      \
+    /* First see whether we can write the character using the currently	      \
+       selected character set.  */					      \
+    if (set == ASCII_set						      \
+	|| (ch >= 0x01 && ((set < ISO88591_set && (ch < 0x21 || ch == 0x7f))  \
+			   || (set >= ISO88591_set && ch < 0x20))))	      \
+      {									      \
+	/* Please note that the NUL byte is *not* matched if we are not	      \
+	   currently using the ASCII charset.  This is because we must	      \
+	   switch to the initial state whenever a NUL byte is written.  */    \
+	if (ch <= 0x7f)							      \
+	  {								      \
+	    *outptr++ = ch;						      \
+	    written = 1;						      \
+	  }								      \
+      }									      \
+    else if (set == JISX0201_set)					      \
+      written = ucs4_to_jisx0201 (ch, outptr);				      \
+    else if (set == ISO88591_set)					      \
+      {									      \
+	if (ch >= 0xa0 && ch <= 0xff)					      \
+	  {								      \
+	    *outptr++ = ch - 0x80;					      \
+	    written = 1;						      \
+	  }								      \
+      }									      \
+    else if (set == ISO88597_set)					      \
+      {									      \
+	const struct gap *rp = from_idx;				      \
+									      \
+	while (ch > rp->end)						      \
+	  ++rp;								      \
+	if (ch >= rp->start)						      \
+	  {								      \
+	    unsigned char res = iso88597_from_ucs4[ch + rp->idx];	      \
+	    if (res != '\0')						      \
+	      {								      \
+		*outptr++ = res;					      \
+		written = 1;						      \
+	      }								      \
+	  }								      \
+      }									      \
+    else								      \
+      {									      \
+	if (set == JISX0208_1978_set || set == JISX0208_1983_set)	      \
+	  written = ucs4_to_jisx0208 (ch, outptr,			      \
+				      (NEED_LENGTH_TEST			      \
+				       ? outbufend - outptr : 2));	      \
+	else if (set == JISX0212_set)					      \
+	  written = ucs4_to_jisx0212 (ch, outptr,			      \
+				      (NEED_LENGTH_TEST			      \
+				       ? outbufend - outptr : 2));	      \
+	else if (set == GB2312_set)					      \
+	  written = ucs4_to_gb2312 (ch, outptr, (NEED_LENGTH_TEST	      \
+						 ? outbufend - outptr : 2));  \
+	else								      \
+	  {								      \
+	    assert (set == KSC5601_set);				      \
+									      \
+	    written = ucs4_to_ksc5601 (ch, outptr,			      \
+				       (NEED_LENGTH_TEST		      \
+					? outbufend - outptr : 2));	      \
+	  }								      \
+									      \
+	if (NEED_LENGTH_TEST && written == 0)				      \
+	  {								      \
+	    result = GCONV_FULL_OUTPUT;					      \
+	    break;							      \
+	  }								      \
+      }									      \
+									      \
+    if (written == UNKNOWN_10646_CHAR)					      \
+      {									      \
+	/* Either this is an unknown character or we have to switch	      \
+	   the currently selected character set.  The character sets	      \
+	   do not code entirely separate parts of ISO 10646 and		      \
+	   therefore there is no single correct result.  If we choose	      \
+	   the character set to use wrong we might be end up with	      \
+	   using yet another character set for the next character	      \
+	   though the current and the next could be encoded with one	      \
+	   character set.  We leave this kind of optimization for	      \
+	   later and now simply use a fixed order in which we test for	      \
+	   availability  */						      \
+									      \
+	/* First test whether we have at least three more bytes for	      \
+	   the escape sequence.  The two charsets which require four	      \
+	   bytes will be handled later.  */				      \
+	if (NEED_LENGTH_TEST && outptr + 3 > outbufend)			      \
+	  {								      \
+	    result = GCONV_FULL_OUTPUT;					      \
+	    break;							      \
+	  }								      \
+									      \
+	if (ch <= 0x7f)							      \
+	  {								      \
+	    /* We must encode using ASCII.  First write out the		      \
+	       escape sequence.  */					      \
+	    *outptr++ = ESC;						      \
+	    *outptr++ = '(';						      \
+	    *outptr++ = 'B';						      \
+	    set = ASCII_set;						      \
+									      \
+	    if (NEED_LENGTH_TEST && outptr == outbufend)		      \
+	      {								      \
+		result = GCONV_FULL_OUTPUT;				      \
+		break;							      \
+	      }								      \
+									      \
+	    *outptr++ = ch;						      \
+	  }								      \
+	else if (ch >= 0xa0 && ch <= 0xff)				      \
+	  {								      \
+	    /* This character set is not available in ISO-2022-JP.  */	      \
+	    if (var == iso2022jp)					      \
+	      {								      \
+		result == GCONV_ILLEGAL_INPUT;				      \
+		break;							      \
+	      }								      \
+									      \
+	    /* We must use the ISO 8859-1 upper half.   */		      \
+	    *outptr++ = ESC;						      \
+	    *outptr++ = '.';						      \
+	    *outptr++ = 'A';						      \
+	    set = ISO88591_set;						      \
+									      \
+	    if (NEED_LENGTH_TEST && outptr == outbufend)		      \
+	      {								      \
+		result = GCONV_FULL_OUTPUT;				      \
+		break;							      \
+	      }								      \
+									      \
+	    *outptr++ = ch - 0x80;					      \
+	  }								      \
+	else								      \
+	  {								      \
+	    /* Now it becomes difficult.  We must search the other	      \
+	       character sets one by one and we cannot use simple	      \
+	       arithmetic to determine whether the character can be	      \
+	       encoded using this set.  */				      \
+	    size_t written;						      \
+	    unsigned char buf[2];					      \
+									      \
+	    written = ucs4_to_jisx0201 (ch, buf);			      \
+	    if (written != UNKNOWN_10646_CHAR)				      \
+	      {								      \
+		/* We use JIS X 0201.  */				      \
+		*outptr++ = ESC;					      \
+		*outptr++ = '$';					      \
+		*outptr++ = '@';					      \
+		set = JISX0201_set;					      \
+									      \
+		if (NEED_LENGTH_TEST && outptr == outbufend)		      \
+		  {							      \
+		    result = GCONV_FULL_OUTPUT;				      \
+		    break;						      \
+		  }							      \
+									      \
+		*outptr++ = buf[0];					      \
+	      }								      \
+	    else							      \
+	      {								      \
+		written = ucs4_to_jisx0208 (ch, buf, 2);		      \
+		if (written != UNKNOWN_10646_CHAR)			      \
+		  {							      \
+		    /* We use JIS X 0208.  */				      \
+		    *outptr++ = ESC;					      \
+		    *outptr++ = '$';					      \
+		    *outptr++ = 'B';					      \
+		    set = JISX0208_1983_set;				      \
+									      \
+		    if (NEED_LENGTH_TEST && outptr + 2 > outbufend)	      \
+		      {							      \
+			result = GCONV_FULL_OUTPUT;			      \
+			break;						      \
+		      }							      \
+									      \
+		    *outptr++ = buf[0];					      \
+		    *outptr++ = buf[1];					      \
+		  }							      \
+		else if (var == iso2022jp)				      \
+		  {							      \
+		    /* We have no other choice.  */			      \
+		    result = GCONV_ILLEGAL_INPUT;			      \
+		    break;						      \
+		  }							      \
+		else							      \
+		  {							      \
+		    written = ucs4_to_jisx0208 (ch, buf, 2);		      \
+		    if (written != UNKNOWN_10646_CHAR)			      \
+		      {							      \
+			/* We use JIS X 0212.  */			      \
+			if (outptr + 4 > outbufend)			      \
+			  {						      \
+			    result = GCONV_FULL_OUTPUT;			      \
+			    break;					      \
+			  }						      \
+			*outptr++ = ESC;				      \
+			*outptr++ = '$';				      \
+			*outptr++ = '(';				      \
+			*outptr++ = 'D';				      \
+			set = JISX0212_set;				      \
+									      \
+			if (NEED_LENGTH_TEST && outptr + 2 > outbufend)	      \
+			  {						      \
+			    result = GCONV_FULL_OUTPUT;			      \
+			    break;					      \
+			  }						      \
+									      \
+			*outptr++ = buf[0];				      \
+			*outptr++ = buf[1];				      \
+		      }							      \
+		    else						      \
+		      {							      \
+			written = ucs4_to_gb2312 (ch, buf, 2);		      \
+			if (written != UNKNOWN_10646_CHAR)		      \
+			  {						      \
+			    /* We use GB 2312.  */			      \
+			    *outptr++ = ESC;				      \
+			    *outptr++ = '$';				      \
+			    *outptr++ = 'A';				      \
+			    set = GB2312_set;				      \
+									      \
+			    if (NEED_LENGTH_TEST && outptr + 2 > outbufend)   \
+			      {						      \
+				result = GCONV_FULL_OUTPUT;		      \
+				break;					      \
+			      }						      \
+									      \
+			    *outptr++ = buf[0];				      \
+			    *outptr++ = buf[1];				      \
+			  }						      \
+			else						      \
+			  {						      \
+			    written = ucs4_to_ksc5601 (ch, buf, 2);	      \
+			    if (written != UNKNOWN_10646_CHAR)		      \
+			      {						      \
+				/* We use KSC 5601.  */			      \
+				if (outptr + 4 > outbufend)		      \
+				  {					      \
+				    result = GCONV_FULL_OUTPUT;		      \
+				    break;				      \
+				  }					      \
+				*outptr++ = ESC;			      \
+				*outptr++ = '$';			      \
+				*outptr++ = '(';			      \
+				*outptr++ = 'C';			      \
+				set = KSC5601_set;			      \
+									      \
+				if (NEED_LENGTH_TEST			      \
+				    && outptr + 2 > outbufend)		      \
+				  {					      \
+				    result = GCONV_FULL_OUTPUT;		      \
+				    break;				      \
+				  }					      \
+									      \
+				*outptr++ = buf[0];			      \
+				*outptr++ = buf[1];			      \
+			      }						      \
+			    else					      \
+			      {						      \
+				result = GCONV_ILLEGAL_INPUT;		      \
+				break;					      \
+			      }						      \
+			  }						      \
+		      }							      \
+		  }							      \
+	      }								      \
+	  }								      \
+      }									      \
+									      \
+    /* Now that we wrote the output increment the input pointer.  */	      \
+    inptr += 4;								      \
+  }
+#define EXTRA_LOOP_DECLS	, enum variant var, int set
+#include <iconv/loop.c>
+
+
+/* Now define the toplevel functions.  */
+#include <iconv/skeleton.c>