[thirdparty/glibc.git] / iconvdata / ibm1364.c

/* Conversion from and to IBM1364.
   Copyright (C) 2005, 2008 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Masahide Washizawa <washi@jp.ibm.com>, 2005.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <dlfcn.h>
#include <stdint.h>
#include <wchar.h>
#include <byteswap.h>

#ifndef CHARSET_NAME
/* This is really the IBM1364 converter, not another module sharing
   the code.  */
# define DATA_HEADER	"ibm1364.h"
# define CHARSET_NAME	"IBM1364//"
# define FROM_LOOP	from_ibm1364
# define TO_LOOP	to_ibm1364
# define SB_TO_UCS4	__ibm1364sb_to_ucs4
# define DB_TO_UCS4_IDX	__ibm1364db_to_ucs4_idx
# define DB_TO_UCS4	__ibm1364db_to_ucs4
# define UCS4_TO_SB_IDX	__ucs4_to_ibm1364sb_idx
# define UCS4_TO_SB	__ucs4_to_ibm1364sb
# define UCS4_TO_DB_IDX	__ucs4_to_ibm1364db_idx
# define UCS4_TO_DB	__ucs4_to_ibm1364db
# define UCS_LIMIT	0xffff
#endif


#include DATA_HEADER

/* The shift sequences for this charset (it does not use ESC).  */
#define SI 		0x0F  /* Shift In, host code to turn DBCS off.  */
#define SO 		0x0E  /* Shift Out, host code to turn DBCS on.  */

/* Definitions used in the body of the `gconv' function.  */
#define MIN_NEEDED_FROM	1
#define MAX_NEEDED_FROM	2
#define MIN_NEEDED_TO	4
#ifdef HAS_COMBINED
# define MAX_NEEDED_TO	8
#else
# define MAX_NEEDED_TO	4
#endif
#define PREPARE_LOOP \
  int save_curcs;							      \
  int *curcsp = &data->__statep->__count;
#define EXTRA_LOOP_ARGS		, curcsp

/* Definitions of initialization and destructor function.  */
#define DEFINE_INIT	1
#define DEFINE_FINI	1


/* 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 & ~7) != sb)				      \
    {									      \
      if (FROM_DIRECTION)						      \
	data->__statep->__count &= 7;					      \
      else								      \
	{								      \
	  /* We are not in the initial state.  To switch back we have	      \
	     to emit `SI'.  */						      \
	  if (__builtin_expect (outbuf >= outend, 0))			      \
	    /* We don't have enough room in the output buffer.  */	      \
	    status = __GCONV_FULL_OUTPUT;				      \
	  else								      \
	    {								      \
	      /* Write out the shift sequence.  */			      \
	      *outbuf++ = SI;						      \
	      data->__statep->__count &= 7;				      \
	    }								      \
	}								      \
    }


/* 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)								      \
    save_curcs = *curcsp;						      \
  else									      \
    *curcsp = save_curcs


/* Current codeset type.  */
enum
{
  sb = 0,
  db = 64
};


/* Subroutine to write out converted UCS4 from IBM-13XX.  */
#ifdef HAS_COMBINED
# define SUB_COMBINED_UCS_FROM_IBM13XX \
  {									      \
    if (res != UCS_LIMIT || ch < __TO_UCS4_COMBINED_MIN			      \
	|| ch > __TO_UCS4_COMBINED_MAX)					      \
      {									      \
	put32 (outptr, res);						      \
	outptr += 4;							      \
      }									      \
    else								      \
      {									      \
	/* This is a combined character.  Make sure we have room.  */	      \
	if (__builtin_expect (outptr + 8 > outend, 0))			      \
	  {								      \
	    result = __GCONV_FULL_OUTPUT;				      \
	    break;							      \
	  }								      \
									      \
	const struct divide *cmbp					      \
	  = &DB_TO_UCS4_COMB[ch - __TO_UCS4_COMBINED_MIN];		      \
	assert (cmbp->res1 != 0 && cmbp->res2 != 0);			      \
									      \
	put32 (outptr, cmbp->res1);					      \
	outptr += 4;							      \
	put32 (outptr, cmbp->res2);					      \
	outptr += 4;							      \
      }									      \
  }
#else
# define SUB_COMBINED_UCS_FROM_IBM13XX \
  {									      \
    put32 (outptr, res);						      \
    outptr += 4;							      \
  }
#endif /* HAS_COMBINED */


/* First, define the conversion function from IBM-13XX 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;						      \
									      \
    if (__builtin_expect (ch, 0) == SO)					      \
      {									      \
	/* Shift OUT, change to DBCS converter.  */			      \
	if (curcs == db)						      \
	  {								      \
	    result = __GCONV_ILLEGAL_INPUT;				      \
	    break;							      \
	  }								      \
	curcs = db;							      \
	++inptr;							      \
	continue;							      \
      }									      \
    if (__builtin_expect (ch, 0) == SI)					      \
      {									      \
	/* Shift IN, change to SBCS converter.  */			      \
	if (curcs == sb)						      \
	  {								      \
	    result = __GCONV_ILLEGAL_INPUT;				      \
	    break;							      \
	  }								      \
	curcs = sb;							      \
	++inptr;							      \
	continue;							      \
      }									      \
									      \
    if (curcs == sb)							      \
      {									      \
	/* Use the IBM13XX table for single byte.  */			      \
	uint32_t res = SB_TO_UCS4[ch];				      \
	if (__builtin_expect (res, L'\1') == L'\0' && ch != '\0')	      \
	  {								      \
	    /* This is an illegal character.  */			      \
	    if (! ignore_errors_p ())					      \
	      {								      \
		result = __GCONV_ILLEGAL_INPUT;				      \
		break;							      \
	      }								      \
	    ++*irreversible;						      \
	  }								      \
	else								      \
	  {								      \
	    put32 (outptr, res);					      \
	    outptr += 4;						      \
	  }								      \
	++inptr;							      \
      }									      \
    else								      \
      {									      \
	assert (curcs == db);						      \
									      \
	if (__builtin_expect (inptr + 1 >= inend, 0))			      \
	  {								      \
	    /* The second character is not available.  Store the	      \
	       intermediate result.  */					      \
	    result = __GCONV_INCOMPLETE_INPUT;				      \
	    break;							      \
	  }								      \
									      \
	ch = (ch * 0x100) + inptr[1];					      \
									      \
	/* Use the IBM1364 table for double byte.  */			      \
	const struct gap *rp2 = DB_TO_UCS4_IDX;				      \
	while (ch > rp2->end)						      \
	  ++rp2;							      \
									      \
	uint32_t res;							      \
	if (__builtin_expect (ch < rp2->start, 0)			      \
	    || (res = DB_TO_UCS4[ch + rp2->idx],			      \
		__builtin_expect (res, L'\1') == L'\0' && ch != '\0'))	      \
	  {								      \
	    /* This is an illegal character.  */			      \
	    if (! ignore_errors_p ())					      \
	      {								      \
		result = __GCONV_ILLEGAL_INPUT;				      \
		break;							      \
	      }								      \
	    ++*irreversible;						      \
	  }								      \
	else								      \
	  {								      \
	    SUB_COMBINED_UCS_FROM_IBM13XX;				      \
	  }								      \
	inptr += 2;							      \
      }									      \
  }
#define LOOP_NEED_FLAGS
#define EXTRA_LOOP_DECLS	, int *curcsp
#define INIT_PARAMS		int curcs = *curcsp & ~7
#define UPDATE_PARAMS		*curcsp = curcs
#include <iconv/loop.c>


/* Subroutine to convert two UCS4 codes to IBM-13XX.  */
#ifdef HAS_COMBINED
# define SUB_COMBINED_UCS_TO_IBM13XX \
  {									      \
    const struct combine *cmbp = UCS4_COMB_TO_DB;			      \
    while (cmbp->res1 < ch)						      \
      ++cmbp;								      \
    /* XXX if last char is beginning of combining store in state */	      \
    if (cmbp->res1 == ch && inptr + 4 < inend)				      \
      {									      \
	/* See if input is part of a combined character.  */		      \
	uint32_t ch_next = get32 (inptr + 4);				      \
	while (cmbp->res2 != ch_next)					      \
	  {								      \
	    ++cmbp;							      \
	    if (cmbp->res1 != ch)					      \
	      goto not_combined;					      \
	  }								      \
									      \
	/* It is a combined character.  First make sure we are in	      \
	   double byte mode.  */					      \
	if (curcs == sb)						      \
	  {								      \
	    /* We know there is room for at least one byte.  */		      \
	    *outptr++ = SO;						      \
	    curcs = db;							      \
	  }								      \
									      \
	if (__builtin_expect (outptr + 2 > outend, 0))			      \
	  {								      \
	    result = __GCONV_FULL_OUTPUT;				      \
	    break;							      \
	  }								      \
	*outptr++ = cmbp->ch[0];					      \
	*outptr++ = cmbp->ch[1];					      \
	inptr += 8;							      \
	continue;							      \
									      \
      not_combined:;							      \
      }									      \
  }
#else
# define SUB_COMBINED_UCS_TO_IBM13XX
#endif /* HAS_COMBINED */


/* 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
#define LOOPFCT			TO_LOOP
#define BODY \
  {									      \
    uint32_t ch = get32 (inptr);					      \
									      \
    if (__builtin_expect (ch >= UCS_LIMIT, 0))				      \
      {									      \
	UNICODE_TAG_HANDLER (ch, 4);					      \
									      \
	if (! ignore_errors_p ())					      \
	  {								      \
	    result = __GCONV_ILLEGAL_INPUT;				      \
	    break;							      \
	  }								      \
	++*irreversible;						      \
	inptr += 4;							      \
	continue;							      \
      }									      \
									      \
    SUB_COMBINED_UCS_TO_IBM13XX;					      \
									      \
    const struct gap *rp1 = UCS4_TO_SB_IDX;				      \
    while (ch > rp1->end)						      \
      ++rp1;								      \
									      \
    /* Use the UCS4 table for single byte.  */				      \
    const char *cp;							      \
    if (__builtin_expect (ch < rp1->start, 0)				      \
	|| (cp = UCS4_TO_SB[ch + rp1->idx],				      \
	    __builtin_expect (cp[0], L'\1') == L'\0' && ch != '\0'))	      \
      {									      \
	/* Use the UCS4 table for double byte.  */			      \
	const struct gap *rp2 = UCS4_TO_DB_IDX;				      \
	while (ch > rp2->end)						      \
	  ++rp2;							      \
									      \
	if (__builtin_expect (ch < rp2->start, 0)			      \
	    || (cp = UCS4_TO_DB[ch + rp2->idx],				      \
		__builtin_expect (cp[0], L'\1') == L'\0' && ch != '\0'))      \
	  {								      \
	    /* This is an illegal character.  */			      \
	    if (! ignore_errors_p ())					      \
	      {								      \
		result = __GCONV_ILLEGAL_INPUT;				      \
		break;							      \
	      }								      \
	    ++*irreversible;						      \
	  }								      \
	else								      \
	  {								      \
	    if (curcs == sb)						      \
	      {								      \
		/* We know there is room for at least one byte.  */	      \
		*outptr++ = SO;						      \
		curcs = db;						      \
	      }								      \
									      \
	    if (__builtin_expect (outptr + 2 > outend, 0))		      \
	      {								      \
		result = __GCONV_FULL_OUTPUT;				      \
		break;							      \
	      }								      \
	    *outptr++ = cp[0];						      \
	    *outptr++ = cp[1];						      \
	  }								      \
      }									      \
    else								      \
      {									      \
	if (__builtin_expect (curcs == db, 0))				      \
	  {								      \
	    /* We know there is room for at least one byte.  */		      \
	    *outptr++ = SI;						      \
	    curcs = sb;							      \
									      \
	    if (__builtin_expect (outptr >= outend, 0))			      \
	      {								      \
		result = __GCONV_FULL_OUTPUT;				      \
		break;							      \
	      }								      \
	  }								      \
									      \
	*outptr++ = cp[0];						      \
      }									      \
									      \
    /* Now that we wrote the output increment the input pointer.  */	      \
    inptr += 4;								      \
  }
#define LOOP_NEED_FLAGS
#define EXTRA_LOOP_DECLS	, int *curcsp
#define INIT_PARAMS		int curcs = *curcsp & ~7
#define REINIT_PARAMS		curcs = *curcsp & ~7
#define UPDATE_PARAMS		*curcsp = curcs
#include <iconv/loop.c>

/* Now define the toplevel functions.  */
#include <iconv/skeleton.c>
Commit	Line	Data
ad1df114	1	/* Conversion from and to IBM1364.
4b1b449d	2	Copyright (C) 2005, 2008 Free Software Foundation, Inc.
ad1df114 UD	3	This file is part of the GNU C Library.
	4	Contributed by Masahide Washizawa <washi@jp.ibm.com>, 2005.
	5
	6	The GNU C Library is free software; you can redistribute it and/or
	7	modify it under the terms of the GNU Lesser General Public
	8	License as published by the Free Software Foundation; either
	9	version 2.1 of the License, or (at your option) any later version.
	10
	11	The GNU C Library is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	Lesser General Public License for more details.
	15
	16	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	17	License along with the GNU C Library; if not, see
59ba27a6 PE	18	<http://www.gnu.org/licenses/>. */
ad1df114 UD	19
	20	#include <dlfcn.h>
	21	#include <stdint.h>
	22	#include <wchar.h>
	23	#include <byteswap.h>
	24
	25	#ifndef CHARSET_NAME
	26	/* This is really the IBM1364 converter, not another module sharing
	27	the code. */
	28	# define DATA_HEADER "ibm1364.h"
	29	# define CHARSET_NAME "IBM1364//"
	30	# define FROM_LOOP from_ibm1364
	31	# define TO_LOOP to_ibm1364
	32	# define SB_TO_UCS4 __ibm1364sb_to_ucs4
	33	# define DB_TO_UCS4_IDX __ibm1364db_to_ucs4_idx
	34	# define DB_TO_UCS4 __ibm1364db_to_ucs4
	35	# define UCS4_TO_SB_IDX __ucs4_to_ibm1364sb_idx
	36	# define UCS4_TO_SB __ucs4_to_ibm1364sb
	37	# define UCS4_TO_DB_IDX __ucs4_to_ibm1364db_idx
	38	# define UCS4_TO_DB __ucs4_to_ibm1364db
	39	# define UCS_LIMIT 0xffff
	40	#endif
	41
	42
	43	#include DATA_HEADER
	44
	45	/* The shift sequences for this charset (it does not use ESC). */
	46	#define SI 0x0F /* Shift In, host code to turn DBCS off. */
	47	#define SO 0x0E /* Shift Out, host code to turn DBCS on. */
	48
	49	/* Definitions used in the body of the `gconv' function. */
	50	#define MIN_NEEDED_FROM 1
	51	#define MAX_NEEDED_FROM 2
	52	#define MIN_NEEDED_TO 4
	53	#ifdef HAS_COMBINED
	54	# define MAX_NEEDED_TO 8
	55	#else
	56	# define MAX_NEEDED_TO 4
	57	#endif
	58	#define PREPARE_LOOP \
	59	int save_curcs; \
	60	int *curcsp = &data->__statep->__count;
	61	#define EXTRA_LOOP_ARGS , curcsp
	62
	63	/* Definitions of initialization and destructor function. */
	64	#define DEFINE_INIT 1
	65	#define DEFINE_FINI 1
	66
	67
	68	/* Since this is a stateful encoding we have to provide code which resets
	69	the output state to the initial state. This has to be done during the
	70	flushing. */
	71	#define EMIT_SHIFT_TO_INIT \
	72	if ((data->__statep->__count & ~7) != sb) \
	73	{ \
	74	if (FROM_DIRECTION) \
	75	data->__statep->__count &= 7; \
	76	else \
	77	{ \
	78	/* We are not in the initial state. To switch back we have \
	79	to emit `SI'. */ \
	80	if (__builtin_expect (outbuf >= outend, 0)) \
	81	/* We don't have enough room in the output buffer. */ \
	82	status = __GCONV_FULL_OUTPUT; \
83	else \
84	{ \
85	/* Write out the shift sequence. */ \
86	*outbuf++ = SI; \
87	data->__statep->__count &= 7; \
88	} \
89	} \
90	}
91
92
93	/* Since we might have to reset input pointer we must be able to save
94	and retore the state. */
95	#define SAVE_RESET_STATE(Save) \
96	if (Save) \
97	save_curcs = *curcsp; \
98	else \
99	*curcsp = save_curcs
100
101
102	/* Current codeset type. */
103	enum
104	{
105	sb = 0,
106	db = 64
107	};
108
109
110	/* Subroutine to write out converted UCS4 from IBM-13XX. */
111	#ifdef HAS_COMBINED
112	# define SUB_COMBINED_UCS_FROM_IBM13XX \
113	{ \
114	if (res != UCS_LIMIT \|\| ch < __TO_UCS4_COMBINED_MIN \
115	\|\| ch > __TO_UCS4_COMBINED_MAX) \
116	{ \
117	put32 (outptr, res); \
118	outptr += 4; \
119	} \
120	else \
121	{ \
122	/* This is a combined character. Make sure we have room. */ \
123	if (__builtin_expect (outptr + 8 > outend, 0)) \
124	{ \
125	result = __GCONV_FULL_OUTPUT; \
126	break; \
127	} \
128	\
129	const struct divide *cmbp \
130	= &DB_TO_UCS4_COMB[ch - __TO_UCS4_COMBINED_MIN]; \
131	assert (cmbp->res1 != 0 && cmbp->res2 != 0); \
132	\
133	put32 (outptr, cmbp->res1); \
134	outptr += 4; \
135	put32 (outptr, cmbp->res2); \
136	outptr += 4; \
137	} \
138	}
139	#else
140	# define SUB_COMBINED_UCS_FROM_IBM13XX \
141	{ \
142	put32 (outptr, res); \
143	outptr += 4; \
144	}
145	#endif /* HAS_COMBINED */
146
147
148	/* First, define the conversion function from IBM-13XX to UCS4. */
149	#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
150	#define MAX_NEEDED_INPUT MAX_NEEDED_FROM
151	#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
152	#define LOOPFCT FROM_LOOP
153	#define BODY \
154	{ \
155	uint32_t ch = *inptr; \
156	\
157	if (__builtin_expect (ch, 0) == SO) \
158	{ \
159	/* Shift OUT, change to DBCS converter. */ \
160	if (curcs == db) \
161	{ \
162	result = __GCONV_ILLEGAL_INPUT; \
163	break; \
164	} \
165	curcs = db; \
166	++inptr; \
167	continue; \
168	} \
169	if (__builtin_expect (ch, 0) == SI) \
170	{ \
171	/* Shift IN, change to SBCS converter. */ \
172	if (curcs == sb) \
173	{ \
174	result = __GCONV_ILLEGAL_INPUT; \
175	break; \
176	} \
177	curcs = sb; \
178	++inptr; \
179	continue; \
180	} \
181	\
182	if (curcs == sb) \
183	{ \
184	/* Use the IBM13XX table for single byte. */ \
185	uint32_t res = SB_TO_UCS4[ch]; \
186	if (__builtin_expect (res, L'\1') == L'\0' && ch != '\0') \
187	{ \
188	/* This is an illegal character. */ \
189	if (! ignore_errors_p ()) \
190	{ \
191	result = __GCONV_ILLEGAL_INPUT; \
192	break; \
193	} \
194	++*irreversible; \
195	} \
196	else \
197	{ \
198	put32 (outptr, res); \
199	outptr += 4; \
200	} \
201	++inptr; \
202	} \
203	else \
204	{ \
205	assert (curcs == db); \
206	\
207	if (__builtin_expect (inptr + 1 >= inend, 0)) \
208	{ \
209	/* The second character is not available. Store the \
210	intermediate result. */ \
211	result = __GCONV_INCOMPLETE_INPUT; \
212	break; \
213	} \
214	\
215	ch = (ch * 0x100) + inptr[1]; \
216	\
217	/* Use the IBM1364 table for double byte. */ \
218	const struct gap *rp2 = DB_TO_UCS4_IDX; \
219	while (ch > rp2->end) \
220	++rp2; \
221	\
222	uint32_t res; \
223	if (__builtin_expect (ch < rp2->start, 0) \
224	\|\| (res = DB_TO_UCS4[ch + rp2->idx], \
225	__builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \
226	{ \
227	/* This is an illegal character. */ \
228	if (! ignore_errors_p ()) \
229	{ \
230	result = __GCONV_ILLEGAL_INPUT; \
231	break; \
232	} \
233	++*irreversible; \
234	} \
235	else \
236	{ \
237	SUB_COMBINED_UCS_FROM_IBM13XX; \
238	} \
239	inptr += 2; \
240	} \
241	}
242	#define LOOP_NEED_FLAGS
243	#define EXTRA_LOOP_DECLS , int *curcsp
244	#define INIT_PARAMS int curcs = *curcsp & ~7
245	#define UPDATE_PARAMS *curcsp = curcs
246	#include <iconv/loop.c>
247
248
249	/* Subroutine to convert two UCS4 codes to IBM-13XX. */
250	#ifdef HAS_COMBINED
251	# define SUB_COMBINED_UCS_TO_IBM13XX \
252	{ \
253	const struct combine *cmbp = UCS4_COMB_TO_DB; \
254	while (cmbp->res1 < ch) \
255	++cmbp; \
256	/* XXX if last char is beginning of combining store in state */ \
257	if (cmbp->res1 == ch && inptr + 4 < inend) \
258	{ \
259	/* See if input is part of a combined character. */ \
260	uint32_t ch_next = get32 (inptr + 4); \
261	while (cmbp->res2 != ch_next) \
262	{ \
263	++cmbp; \
264	if (cmbp->res1 != ch) \
265	goto not_combined; \
266	} \
267	\
268	/* It is a combined character. First make sure we are in \
269	double byte mode. */ \
270	if (curcs == sb) \
271	{ \
272	/* We know there is room for at least one byte. */ \
273	*outptr++ = SO; \
274	curcs = db; \
275	} \
276	\
277	if (__builtin_expect (outptr + 2 > outend, 0)) \
278	{ \
279	result = __GCONV_FULL_OUTPUT; \
280	break; \
281	} \
282	*outptr++ = cmbp->ch[0]; \
283	*outptr++ = cmbp->ch[1]; \
284	inptr += 8; \
285	continue; \
286	\
287	not_combined:; \
288	} \
289	}
290	#else
291	# define SUB_COMBINED_UCS_TO_IBM13XX
292	#endif /* HAS_COMBINED */
293
294
295	/* Next, define the other direction. */
296	#define MIN_NEEDED_INPUT MIN_NEEDED_TO
297	#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
298	#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
299	#define LOOPFCT TO_LOOP
300	#define BODY \
301	{ \
302	uint32_t ch = get32 (inptr); \
303	\
304	if (__builtin_expect (ch >= UCS_LIMIT, 0)) \
305	{ \
306	UNICODE_TAG_HANDLER (ch, 4); \
307	\
308	if (! ignore_errors_p ()) \
309	{ \
310	result = __GCONV_ILLEGAL_INPUT; \
311	break; \
312	} \
313	++*irreversible; \
314	inptr += 4; \
315	continue; \
316	} \
317	\
318	SUB_COMBINED_UCS_TO_IBM13XX; \
319	\
320	const struct gap *rp1 = UCS4_TO_SB_IDX; \
321	while (ch > rp1->end) \
322	++rp1; \
323	\
324	/* Use the UCS4 table for single byte. */ \
325	const char *cp; \
326	if (__builtin_expect (ch < rp1->start, 0) \
327	\|\| (cp = UCS4_TO_SB[ch + rp1->idx], \
328	__builtin_expect (cp[0], L'\1') == L'\0' && ch != '\0')) \
329	{ \
330	/* Use the UCS4 table for double byte. */ \
331	const struct gap *rp2 = UCS4_TO_DB_IDX; \
332	while (ch > rp2->end) \
333	++rp2; \
334	\
335	if (__builtin_expect (ch < rp2->start, 0) \
336	\|\| (cp = UCS4_TO_DB[ch + rp2->idx], \
337	__builtin_expect (cp[0], L'\1') == L'\0' && ch != '\0')) \
338	{ \
339	/* This is an illegal character. */ \
340	if (! ignore_errors_p ()) \
341	{ \
342	result = __GCONV_ILLEGAL_INPUT; \
343	break; \
344	} \
345	++*irreversible; \
346	} \
347	else \
348	{ \
349	if (curcs == sb) \
350	{ \
351	/* We know there is room for at least one byte. */ \
352	*outptr++ = SO; \
353	curcs = db; \
354	} \
355	\
356	if (__builtin_expect (outptr + 2 > outend, 0)) \
357	{ \
358	result = __GCONV_FULL_OUTPUT; \
359	break; \
360	} \
361	*outptr++ = cp[0]; \
362	*outptr++ = cp[1]; \
363	} \
364	} \
365	else \
366	{ \
367	if (__builtin_expect (curcs == db, 0)) \
368	{ \
369	/* We know there is room for at least one byte. */ \
370	*outptr++ = SI; \
371	curcs = sb; \
372	\
373	if (__builtin_expect (outptr >= outend, 0)) \
374	{ \
375	result = __GCONV_FULL_OUTPUT; \
376	break; \
377	} \
378	} \
379	\
380	*outptr++ = cp[0]; \
381	} \
382	\
383	/* Now that we wrote the output increment the input pointer. */ \
384	inptr += 4; \
385	}
386	#define LOOP_NEED_FLAGS
387	#define EXTRA_LOOP_DECLS , int *curcsp
388	#define INIT_PARAMS int curcs = *curcsp & ~7
4b1b449d	389	#define REINIT_PARAMS curcs = *curcsp & ~7
ad1df114 UD	390	#define UPDATE_PARAMS *curcsp = curcs
	391	#include <iconv/loop.c>
	392
	393	/* Now define the toplevel functions. */
	394	#include <iconv/skeleton.c>