1 /* Conversion from and to CP1258.
2    Copyright (C) 1998-2022 Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4 
5    The GNU C Library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9 
10    The GNU C Library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14 
15    You should have received a copy of the GNU Lesser General Public
16    License along with the GNU C Library; if not, see
17    <https://www.gnu.org/licenses/>.  */
18 
19 #include <dlfcn.h>
20 #include <stdint.h>
21 #include <assert.h>
22 #include <stdlib.h>
23 
24 #define NELEMS(arr) (sizeof (arr) / sizeof (arr[0]))
25 
26 /* Definitions used in the body of the `gconv' function.  */
27 #define CHARSET_NAME		"CP1258//"
28 #define FROM_LOOP		from_cp1258
29 #define TO_LOOP			to_cp1258
30 #define DEFINE_INIT		1
31 #define DEFINE_FINI		1
32 #define ONE_DIRECTION		0
33 #define FROM_LOOP_MIN_NEEDED_FROM	1
34 #define FROM_LOOP_MAX_NEEDED_FROM	1
35 #define FROM_LOOP_MIN_NEEDED_TO		4
36 #define FROM_LOOP_MAX_NEEDED_TO		4
37 #define TO_LOOP_MIN_NEEDED_FROM		4
38 #define TO_LOOP_MAX_NEEDED_FROM		4
39 #define TO_LOOP_MIN_NEEDED_TO		1
40 #define TO_LOOP_MAX_NEEDED_TO		2
41 #define PREPARE_LOOP \
42   int saved_state;							      \
43   int *statep = &data->__statep->__count;
44 #define EXTRA_LOOP_ARGS		, statep
45 
46 
47 /* Since we might have to reset input pointer we must be able to save
48    and restore the state.  */
49 #define SAVE_RESET_STATE(Save) \
50   if (Save)								      \
51     saved_state = *statep;						      \
52   else									      \
53     *statep = saved_state
54 
55 
56 /* During CP1258 to UCS4 conversion, the COUNT element of the state
57    contains the last UCS4 character, shifted by 3 bits.  */
58 
59 
60 /* Since this is a stateful encoding we have to provide code which resets
61    the output state to the initial state.  This has to be done during the
62    flushing.  */
63 #define EMIT_SHIFT_TO_INIT \
64   if (data->__statep->__count != 0)					      \
65     {									      \
66       if (FROM_DIRECTION)						      \
67 	{								      \
68 	  if (__glibc_likely (outbuf + 4 <= outend))			      \
69 	    {								      \
70 	      /* Write out the last character.  */			      \
71 	      *((uint32_t *) outbuf) = data->__statep->__count >> 3;	      \
72 	      outbuf += sizeof (uint32_t);				      \
73 	      data->__statep->__count = 0;				      \
74 	    }								      \
75 	  else								      \
76 	    /* We don't have enough room in the output buffer.  */	      \
77 	    status = __GCONV_FULL_OUTPUT;				      \
78 	}								      \
79       else								      \
80 	/* We don't use shift states in the TO_DIRECTION.  */		      \
81 	data->__statep->__count = 0;					      \
82     }
83 
84 
85 /* First define the conversion function from CP1258 to UCS4.  */
86 
87 static const uint16_t to_ucs4[128] =
88   {
89     /* 0x80 */
90     0x20AC,      0, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
91     0x02C6, 0x2030,      0, 0x2039, 0x0152,      0,      0,      0,
92     /* 0x90 */
93 	 0, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
94     0x02DC, 0x2122,      0, 0x203A, 0x0153,      0,      0, 0x0178,
95     /* 0xA0 */
96     0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
97     0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
98     /* 0xB0 */
99     0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
100     0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
101     /* 0xC0 */
102     0x00C0, 0x00C1, 0x00C2, 0x0102, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
103     0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x0300, 0x00CD, 0x00CE, 0x00CF,
104     /* 0xD0 */
105     0x0110, 0x00D1, 0x0309, 0x00D3, 0x00D4, 0x01A0, 0x00D6, 0x00D7,
106     0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x01AF, 0x0303, 0x00DF,
107     /* 0xE0 */
108     0x00E0, 0x00E1, 0x00E2, 0x0103, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
109     0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x0301, 0x00ED, 0x00EE, 0x00EF,
110     /* 0xF0 */
111     0x0111, 0x00F1, 0x0323, 0x00F3, 0x00F4, 0x01A1, 0x00F6, 0x00F7,
112     0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x01B0, 0x20AB, 0x00FF,
113   };
114 
115 /* CP1258 contains five combining characters:
116    0x0300, 0x0301, 0x0303, 0x0309, 0x0323.  */
117 
118 /* Composition tables for each of the relevant combining characters.  */
119 static const struct
120 {
121   uint16_t base;
122   uint16_t composed;
123 } comp_table_data[] =
124   {
125 #define COMP_TABLE_IDX_0300 0
126 #define COMP_TABLE_LEN_0300 31
127     { 0x0041, 0x00C0 },
128     { 0x0045, 0x00C8 },
129     { 0x0049, 0x00CC },
130     { 0x004E, 0x01F8 },
131     { 0x004F, 0x00D2 },
132     { 0x0055, 0x00D9 },
133     { 0x0057, 0x1E80 },
134     { 0x0059, 0x1EF2 },
135     { 0x0061, 0x00E0 },
136     { 0x0065, 0x00E8 },
137     { 0x0069, 0x00EC },
138     { 0x006E, 0x01F9 },
139     { 0x006F, 0x00F2 },
140     { 0x0075, 0x00F9 },
141     { 0x0077, 0x1E81 },
142     { 0x0079, 0x1EF3 },
143     { 0x00A8, 0x1FED },
144     { 0x00C2, 0x1EA6 },
145     { 0x00CA, 0x1EC0 },
146     { 0x00D4, 0x1ED2 },
147     { 0x00DC, 0x01DB },
148     { 0x00E2, 0x1EA7 },
149     { 0x00EA, 0x1EC1 },
150     { 0x00F4, 0x1ED3 },
151     { 0x00FC, 0x01DC },
152     { 0x0102, 0x1EB0 },
153     { 0x0103, 0x1EB1 },
154     /*{ 0x0112, 0x1E14 },*/
155     /*{ 0x0113, 0x1E15 },*/
156     /*{ 0x014C, 0x1E50 },*/
157     /*{ 0x014D, 0x1E51 },*/
158     { 0x01A0, 0x1EDC },
159     { 0x01A1, 0x1EDD },
160     { 0x01AF, 0x1EEA },
161     { 0x01B0, 0x1EEB },
162 #define COMP_TABLE_IDX_0301 (COMP_TABLE_IDX_0300 + COMP_TABLE_LEN_0300)
163 #define COMP_TABLE_LEN_0301 59
164     { 0x0041, 0x00C1 },
165     { 0x0043, 0x0106 },
166     { 0x0045, 0x00C9 },
167     { 0x0047, 0x01F4 },
168     { 0x0049, 0x00CD },
169     { 0x004B, 0x1E30 },
170     { 0x004C, 0x0139 },
171     { 0x004D, 0x1E3E },
172     { 0x004E, 0x0143 },
173     { 0x004F, 0x00D3 },
174     { 0x0050, 0x1E54 },
175     { 0x0052, 0x0154 },
176     { 0x0053, 0x015A },
177     { 0x0055, 0x00DA },
178     { 0x0057, 0x1E82 },
179     { 0x0059, 0x00DD },
180     { 0x005A, 0x0179 },
181     { 0x0061, 0x00E1 },
182     { 0x0063, 0x0107 },
183     { 0x0065, 0x00E9 },
184     { 0x0067, 0x01F5 },
185     { 0x0069, 0x00ED },
186     { 0x006B, 0x1E31 },
187     { 0x006C, 0x013A },
188     { 0x006D, 0x1E3F },
189     { 0x006E, 0x0144 },
190     { 0x006F, 0x00F3 },
191     { 0x0070, 0x1E55 },
192     { 0x0072, 0x0155 },
193     { 0x0073, 0x015B },
194     { 0x0075, 0x00FA },
195     { 0x0077, 0x1E83 },
196     { 0x0079, 0x00FD },
197     { 0x007A, 0x017A },
198     { 0x00A8, 0x0385 }, /* prefer U+0385 over U+1FEE */
199     { 0x00C2, 0x1EA4 },
200     { 0x00C5, 0x01FA },
201     { 0x00C6, 0x01FC },
202     { 0x00C7, 0x1E08 },
203     { 0x00CA, 0x1EBE },
204     { 0x00CF, 0x1E2E },
205     { 0x00D4, 0x1ED0 },
206     /*{ 0x00D5, 0x1E4C },*/
207     { 0x00D8, 0x01FE },
208     { 0x00DC, 0x01D7 },
209     { 0x00E2, 0x1EA5 },
210     { 0x00E5, 0x01FB },
211     { 0x00E6, 0x01FD },
212     { 0x00E7, 0x1E09 },
213     { 0x00EA, 0x1EBF },
214     { 0x00EF, 0x1E2F },
215     { 0x00F4, 0x1ED1 },
216     /*{ 0x00F5, 0x1E4D },*/
217     { 0x00F8, 0x01FF },
218     { 0x00FC, 0x01D8 },
219     { 0x0102, 0x1EAE },
220     { 0x0103, 0x1EAF },
221     /*{ 0x0112, 0x1E16 },*/
222     /*{ 0x0113, 0x1E17 },*/
223     /*{ 0x014C, 0x1E52 },*/
224     /*{ 0x014D, 0x1E53 },*/
225     /*{ 0x0168, 0x1E78 },*/
226     /*{ 0x0169, 0x1E79 },*/
227     { 0x01A0, 0x1EDA },
228     { 0x01A1, 0x1EDB },
229     { 0x01AF, 0x1EE8 },
230     { 0x01B0, 0x1EE9 },
231 #define COMP_TABLE_IDX_0303 (COMP_TABLE_IDX_0301 + COMP_TABLE_LEN_0301)
232 #define COMP_TABLE_LEN_0303 34
233     { 0x0041, 0x00C3 },
234     { 0x0045, 0x1EBC },
235     { 0x0049, 0x0128 },
236     { 0x004E, 0x00D1 },
237     { 0x004F, 0x00D5 },
238     { 0x0055, 0x0168 },
239     { 0x0056, 0x1E7C },
240     { 0x0059, 0x1EF8 },
241     { 0x0061, 0x00E3 },
242     { 0x0065, 0x1EBD },
243     { 0x0069, 0x0129 },
244     { 0x006E, 0x00F1 },
245     { 0x006F, 0x00F5 },
246     { 0x0075, 0x0169 },
247     { 0x0076, 0x1E7D },
248     { 0x0079, 0x1EF9 },
249     { 0x00C2, 0x1EAA },
250     { 0x00CA, 0x1EC4 },
251     { 0x00D3, 0x1E4C },
252     { 0x00D4, 0x1ED6 },
253     { 0x00D6, 0x1E4E },
254     { 0x00DA, 0x1E78 },
255     { 0x00E2, 0x1EAB },
256     { 0x00EA, 0x1EC5 },
257     { 0x00F3, 0x1E4D },
258     { 0x00F4, 0x1ED7 },
259     { 0x00F6, 0x1E4F },
260     { 0x00FA, 0x1E79 },
261     { 0x0102, 0x1EB4 },
262     { 0x0103, 0x1EB5 },
263     { 0x01A0, 0x1EE0 },
264     { 0x01A1, 0x1EE1 },
265     { 0x01AF, 0x1EEE },
266     { 0x01B0, 0x1EEF },
267 #define COMP_TABLE_IDX_0309 (COMP_TABLE_IDX_0303 + COMP_TABLE_LEN_0303)
268 #define COMP_TABLE_LEN_0309 24
269     { 0x0041, 0x1EA2 },
270     { 0x0045, 0x1EBA },
271     { 0x0049, 0x1EC8 },
272     { 0x004F, 0x1ECE },
273     { 0x0055, 0x1EE6 },
274     { 0x0059, 0x1EF6 },
275     { 0x0061, 0x1EA3 },
276     { 0x0065, 0x1EBB },
277     { 0x0069, 0x1EC9 },
278     { 0x006F, 0x1ECF },
279     { 0x0075, 0x1EE7 },
280     { 0x0079, 0x1EF7 },
281     { 0x00C2, 0x1EA8 },
282     { 0x00CA, 0x1EC2 },
283     { 0x00D4, 0x1ED4 },
284     { 0x00E2, 0x1EA9 },
285     { 0x00EA, 0x1EC3 },
286     { 0x00F4, 0x1ED5 },
287     { 0x0102, 0x1EB2 },
288     { 0x0103, 0x1EB3 },
289     { 0x01A0, 0x1EDE },
290     { 0x01A1, 0x1EDF },
291     { 0x01AF, 0x1EEC },
292     { 0x01B0, 0x1EED },
293 #define COMP_TABLE_IDX_0323 (COMP_TABLE_IDX_0309 + COMP_TABLE_LEN_0309)
294 #define COMP_TABLE_LEN_0323 50
295     { 0x0041, 0x1EA0 },
296     { 0x0042, 0x1E04 },
297     { 0x0044, 0x1E0C },
298     { 0x0045, 0x1EB8 },
299     { 0x0048, 0x1E24 },
300     { 0x0049, 0x1ECA },
301     { 0x004B, 0x1E32 },
302     { 0x004C, 0x1E36 },
303     { 0x004D, 0x1E42 },
304     { 0x004E, 0x1E46 },
305     { 0x004F, 0x1ECC },
306     { 0x0052, 0x1E5A },
307     { 0x0053, 0x1E62 },
308     { 0x0054, 0x1E6C },
309     { 0x0055, 0x1EE4 },
310     { 0x0056, 0x1E7E },
311     { 0x0057, 0x1E88 },
312     { 0x0059, 0x1EF4 },
313     { 0x005A, 0x1E92 },
314     { 0x0061, 0x1EA1 },
315     { 0x0062, 0x1E05 },
316     { 0x0064, 0x1E0D },
317     { 0x0065, 0x1EB9 },
318     { 0x0068, 0x1E25 },
319     { 0x0069, 0x1ECB },
320     { 0x006B, 0x1E33 },
321     { 0x006C, 0x1E37 },
322     { 0x006D, 0x1E43 },
323     { 0x006E, 0x1E47 },
324     { 0x006F, 0x1ECD },
325     { 0x0072, 0x1E5B },
326     { 0x0073, 0x1E63 },
327     { 0x0074, 0x1E6D },
328     { 0x0075, 0x1EE5 },
329     { 0x0076, 0x1E7F },
330     { 0x0077, 0x1E89 },
331     { 0x0079, 0x1EF5 },
332     { 0x007A, 0x1E93 },
333     { 0x00C2, 0x1EAC },
334     { 0x00CA, 0x1EC6 },
335     { 0x00D4, 0x1ED8 },
336     { 0x00E2, 0x1EAD },
337     { 0x00EA, 0x1EC7 },
338     { 0x00F4, 0x1ED9 },
339     { 0x0102, 0x1EB6 },
340     { 0x0103, 0x1EB7 },
341     { 0x01A0, 0x1EE2 },
342     { 0x01A1, 0x1EE3 },
343     { 0x01AF, 0x1EF0 },
344     { 0x01B0, 0x1EF1 },
345 #define COMP_TABLE_IDX_END (COMP_TABLE_IDX_0323 + COMP_TABLE_LEN_0323)
346   };
347 /* Compile-time verification of table size.  */
348 typedef int verify1[(NELEMS (comp_table_data) == COMP_TABLE_IDX_END) - 1];
349 
350 static const struct
351 {
352   unsigned int idx;
353   unsigned int len;
354 } comp_table[5] =
355   {
356     { COMP_TABLE_IDX_0300, COMP_TABLE_LEN_0300 },
357     { COMP_TABLE_IDX_0301, COMP_TABLE_LEN_0301 },
358     { COMP_TABLE_IDX_0303, COMP_TABLE_LEN_0303 },
359     { COMP_TABLE_IDX_0309, COMP_TABLE_LEN_0309 },
360     { COMP_TABLE_IDX_0323, COMP_TABLE_LEN_0323 }
361   };
362 
363 #define MIN_NEEDED_INPUT	FROM_LOOP_MIN_NEEDED_FROM
364 #define MAX_NEEDED_INPUT	FROM_LOOP_MAX_NEEDED_FROM
365 #define MIN_NEEDED_OUTPUT	FROM_LOOP_MIN_NEEDED_TO
366 #define MAX_NEEDED_OUTPUT	FROM_LOOP_MAX_NEEDED_TO
367 #define LOOPFCT			FROM_LOOP
368 #define BODY \
369   {									      \
370     uint32_t ch = *inptr;						      \
371     uint32_t last_ch;							      \
372     int must_buffer_ch;							      \
373 									      \
374     if (ch >= 0x80)							      \
375       {									      \
376 	ch = to_ucs4[ch - 0x80];					      \
377 	if (__glibc_unlikely (ch == L'\0'))				      \
378 	  {								      \
379 	    /* This is an illegal character.  */			      \
380 	    STANDARD_FROM_LOOP_ERR_HANDLER (1);				      \
381 	  }								      \
382       }									      \
383 									      \
384     /* Determine whether there is a buffered character pending.  */	      \
385     last_ch = *statep >> 3;						      \
386 									      \
387     /* We have to buffer ch if it is a possible match in comp_table_data.  */ \
388     must_buffer_ch = (ch >= 0x0041 && ch <= 0x01b0);			      \
389 									      \
390     if (last_ch)							      \
391       {									      \
392 	if (ch >= 0x0300 && ch < 0x0340)				      \
393 	  {								      \
394 	    /* See whether last_ch and ch can be combined.  */		      \
395 	    unsigned int i, i1, i2;					      \
396 									      \
397 	    switch (ch)							      \
398 	      {								      \
399 	      case 0x0300:						      \
400 		i = 0;							      \
401 		break;							      \
402 	      case 0x0301:						      \
403 		i = 1;							      \
404 		break;							      \
405 	      case 0x0303:						      \
406 		i = 2;							      \
407 		break;							      \
408 	      case 0x0309:						      \
409 		i = 3;							      \
410 		break;							      \
411 	      case 0x0323:						      \
412 		i = 4;							      \
413 		break;							      \
414 	      default:							      \
415 		abort ();						      \
416 	      }								      \
417 									      \
418 	    i1 = comp_table[i].idx;					      \
419 	    i2 = i1 + comp_table[i].len - 1;				      \
420 									      \
421 	    if (last_ch >= comp_table_data[i1].base			      \
422 		&& last_ch <= comp_table_data[i2].base)			      \
423 	      {								      \
424 		for (;;)						      \
425 		  {							      \
426 		    i = (i1 + i2) >> 1;					      \
427 		    if (last_ch == comp_table_data[i].base)		      \
428 		      break;						      \
429 		    if (last_ch < comp_table_data[i].base)		      \
430 		      {							      \
431 			if (i1 == i)					      \
432 			  goto not_combining;				      \
433 			i2 = i;						      \
434 		      }							      \
435 		    else						      \
436 		      {							      \
437 			if (i1 != i)					      \
438 			  i1 = i;					      \
439 			else						      \
440 			  {						      \
441 			    i = i2;					      \
442 			    if (last_ch == comp_table_data[i].base)	      \
443 			      break;					      \
444 			    goto not_combining;				      \
445 			  }						      \
446 		      }							      \
447 		  }							      \
448 		last_ch = comp_table_data[i].composed;			      \
449 		/* Output the combined character.  */			      \
450 		put32 (outptr, last_ch);				      \
451 		outptr += 4;						      \
452 		*statep = 0;						      \
453 		++inptr;						      \
454 		continue;						      \
455 	      }								      \
456 	  }								      \
457 									      \
458       not_combining:							      \
459 	/* Output the buffered character.  */				      \
460 	put32 (outptr, last_ch);					      \
461 	outptr += 4;							      \
462 	*statep = 0;							      \
463 									      \
464 	/* If we don't have enough room to output ch as well, then deal	      \
465 	   with it in another round.  */				      \
466 	if (!must_buffer_ch && __builtin_expect (outptr + 4 > outend, 0))     \
467 	  continue;							      \
468       }									      \
469 									      \
470     if (must_buffer_ch)							      \
471       *statep = ch << 3;						      \
472     else								      \
473       {									      \
474 	put32 (outptr, ch);						      \
475 	outptr += 4;							      \
476       }									      \
477     ++inptr;								      \
478   }
479 #define LOOP_NEED_FLAGS
480 #define EXTRA_LOOP_DECLS	, int *statep
481 #define ONEBYTE_BODY \
482   {									      \
483     uint32_t ch;							      \
484 									      \
485     if (c < 0x80)							      \
486       ch = c;								      \
487     else								      \
488       {									      \
489 	ch = to_ucs4[c - 0x80];						      \
490 	if (ch == L'\0')						      \
491 	  return WEOF;							      \
492       }									      \
493     if (ch >= 0x0041 && ch <= 0x01b0)					      \
494       return WEOF;							      \
495     return ch;								      \
496   }
497 #include <iconv/loop.c>
498 
499 
500 /* Next, define the conversion function from UCS4 to CP1258.  */
501 
502 static const unsigned char from_ucs4[] =
503   {
504 #define FROM_IDX_00 0
505 			    0xc4, 0xc5, 0xc6, 0xc7, /* 0x00c4-0x00c7 */
506     0xc8, 0xc9, 0xca, 0xcb, 0x00, 0xcd, 0xce, 0xcf, /* 0x00c8-0x00cf */
507     0x00, 0xd1, 0x00, 0xd3, 0xd4, 0x00, 0xd6, 0xd7, /* 0x00d0-0x00d7 */
508     0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0x00, 0x00, 0xdf, /* 0x00d8-0x00df */
509     0xe0, 0xe1, 0xe2, 0x00, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x00e0-0x00e7 */
510     0xe8, 0xe9, 0xea, 0xeb, 0x00, 0xed, 0xee, 0xef, /* 0x00e8-0x00ef */
511     0x00, 0xf1, 0x00, 0xf3, 0xf4, 0x00, 0xf6, 0xf7, /* 0x00f0-0x00f7 */
512     0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0x00, 0x00, 0xff, /* 0x00f8-0x00ff */
513     0x00, 0x00, 0xc3, 0xe3, 0x00, 0x00, 0x00, 0x00, /* 0x0100-0x0107 */
514     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0108-0x010f */
515     0xd0, 0xf0,                                     /* 0x0110-0x0111 */
516 #define FROM_IDX_01 (FROM_IDX_00 + 78)
517 		0x8c, 0x9c, 0x00, 0x00, 0x00, 0x00, /* 0x0152-0x0157 */
518     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0158-0x015f */
519     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0160-0x0167 */
520     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0168-0x016f */
521     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0170-0x0177 */
522     0x9f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0178-0x017f */
523     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0180-0x0187 */
524     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0188-0x018f */
525     0x00, 0x00, 0x83, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0190-0x0197 */
526     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0198-0x019f */
527     0xd5, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x01a0-0x01a7 */
528     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xdd, /* 0x01a8-0x01af */
529     0xfd,                                           /* 0x01b0-0x01b0 */
530 #define FROM_IDX_02 (FROM_IDX_01 + 95)
531 					0x88, 0x00, /* 0x02c6-0x02c7 */
532     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x02c8-0x02cf */
533     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x02d0-0x02d7 */
534     0x00, 0x00, 0x00, 0x00, 0x98,                   /* 0x02d8-0x02dc */
535 #define FROM_IDX_03 (FROM_IDX_02 + 23)
536     0xcc, 0xec, 0x00, 0xde, 0x00, 0x00, 0x00, 0x00, /* 0x0300-0x0307 */
537     0x00, 0xd2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0308-0x030f */
538     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0310-0x0317 */
539     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x0318-0x031f */
540     0x00, 0x00, 0x00, 0xf2,                         /* 0x0320-0x0323 */
541 #define FROM_IDX_20 (FROM_IDX_03 + 36)
542 		      0x96, 0x97, 0x00, 0x00, 0x00, /* 0x2013-0x2017 */
543     0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, /* 0x2018-0x201f */
544     0x86, 0x87, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x2020-0x2027 */
545     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2028-0x202f */
546     0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2030-0x2037 */
547     0x00, 0x8b, 0x9b,                               /* 0x2038-0x203a */
548 #define FROM_IDX_FF (FROM_IDX_20 + 40)
549   };
550 /* Compile-time verification of table size.  */
551 typedef int verify2[(NELEMS (from_ucs4) == FROM_IDX_FF) - 1];
552 
553 /* Decomposition table for the relevant Unicode characters. */
554 static const struct
555 {
556   uint16_t composed;
557   uint32_t base:8;
558   uint32_t comb1:8;
559 } decomp_table[] =
560   {
561     { 0x00c0, 0x41, 0xcc },
562     { 0x00c1, 0x41, 0xec },
563     { 0x00c3, 0x41, 0xde },
564     { 0x00c8, 0x45, 0xcc },
565     { 0x00c9, 0x45, 0xec },
566     { 0x00cc, 0x49, 0xcc },
567     { 0x00cd, 0x49, 0xec },
568     { 0x00d1, 0x4e, 0xde },
569     { 0x00d2, 0x4f, 0xcc },
570     { 0x00d3, 0x4f, 0xec },
571     { 0x00d5, 0x4f, 0xde },
572     { 0x00d9, 0x55, 0xcc },
573     { 0x00da, 0x55, 0xec },
574     { 0x00dd, 0x59, 0xec },
575     { 0x00e0, 0x61, 0xcc },
576     { 0x00e1, 0x61, 0xec },
577     { 0x00e3, 0x61, 0xde },
578     { 0x00e8, 0x65, 0xcc },
579     { 0x00e9, 0x65, 0xec },
580     { 0x00ec, 0x69, 0xcc },
581     { 0x00ed, 0x69, 0xec },
582     { 0x00f1, 0x6e, 0xde },
583     { 0x00f2, 0x6f, 0xcc },
584     { 0x00f3, 0x6f, 0xec },
585     { 0x00f5, 0x6f, 0xde },
586     { 0x00f9, 0x75, 0xcc },
587     { 0x00fa, 0x75, 0xec },
588     { 0x00fd, 0x79, 0xec },
589     { 0x0106, 0x43, 0xec },
590     { 0x0107, 0x63, 0xec },
591     { 0x0128, 0x49, 0xde },
592     { 0x0129, 0x69, 0xde },
593     { 0x0139, 0x4c, 0xec },
594     { 0x013a, 0x6c, 0xec },
595     { 0x0143, 0x4e, 0xec },
596     { 0x0144, 0x6e, 0xec },
597     { 0x0154, 0x52, 0xec },
598     { 0x0155, 0x72, 0xec },
599     { 0x015a, 0x53, 0xec },
600     { 0x015b, 0x73, 0xec },
601     { 0x0168, 0x55, 0xde },
602     { 0x0169, 0x75, 0xde },
603     { 0x0179, 0x5a, 0xec },
604     { 0x017a, 0x7a, 0xec },
605     { 0x01d7, 0xdc, 0xec },
606     { 0x01d8, 0xfc, 0xec },
607     { 0x01db, 0xdc, 0xcc },
608     { 0x01dc, 0xfc, 0xcc },
609     { 0x01f4, 0x47, 0xec },
610     { 0x01f5, 0x67, 0xec },
611     { 0x01f8, 0x4e, 0xcc },
612     { 0x01f9, 0x6e, 0xcc },
613     { 0x01fa, 0xc5, 0xec },
614     { 0x01fb, 0xe5, 0xec },
615     { 0x01fc, 0xc6, 0xec },
616     { 0x01fd, 0xe6, 0xec },
617     { 0x01fe, 0xd8, 0xec },
618     { 0x01ff, 0xf8, 0xec },
619     { 0x0385, 0xa8, 0xec },
620     { 0x1e04, 0x42, 0xf2 },
621     { 0x1e05, 0x62, 0xf2 },
622     { 0x1e08, 0xc7, 0xec },
623     { 0x1e09, 0xe7, 0xec },
624     { 0x1e0c, 0x44, 0xf2 },
625     { 0x1e0d, 0x64, 0xf2 },
626     { 0x1e24, 0x48, 0xf2 },
627     { 0x1e25, 0x68, 0xf2 },
628     { 0x1e2e, 0xcf, 0xec },
629     { 0x1e2f, 0xef, 0xec },
630     { 0x1e30, 0x4b, 0xec },
631     { 0x1e31, 0x6b, 0xec },
632     { 0x1e32, 0x4b, 0xf2 },
633     { 0x1e33, 0x6b, 0xf2 },
634     { 0x1e36, 0x4c, 0xf2 },
635     { 0x1e37, 0x6c, 0xf2 },
636     { 0x1e3e, 0x4d, 0xec },
637     { 0x1e3f, 0x6d, 0xec },
638     { 0x1e42, 0x4d, 0xf2 },
639     { 0x1e43, 0x6d, 0xf2 },
640     { 0x1e46, 0x4e, 0xf2 },
641     { 0x1e47, 0x6e, 0xf2 },
642     { 0x1e4c, 0xd3, 0xde }, /*{ 0x1e4c, 0x00d5, 0xec }, { 0x1e4c, 0x004f, 1, 0xde },*/
643     { 0x1e4d, 0xf3, 0xde }, /*{ 0x1e4d, 0x00f5, 0xec }, { 0x1e4d, 0x006f, 1, 0xde },*/
644     { 0x1e4e, 0xd6, 0xde },
645     { 0x1e4f, 0xf6, 0xde },
646     { 0x1e54, 0x50, 0xec },
647     { 0x1e55, 0x70, 0xec },
648     { 0x1e5a, 0x52, 0xf2 },
649     { 0x1e5b, 0x72, 0xf2 },
650     { 0x1e62, 0x53, 0xf2 },
651     { 0x1e63, 0x73, 0xf2 },
652     { 0x1e6c, 0x54, 0xf2 },
653     { 0x1e6d, 0x74, 0xf2 },
654     { 0x1e78, 0xda, 0xde }, /*{ 0x1e78, 0x0168, 0xec }, { 0x1e78, 0x0055, 1, 0xde },*/
655     { 0x1e79, 0xfa, 0xde }, /*{ 0x1e79, 0x0169, 0xec }, { 0x1e79, 0x0075, 1, 0xde },*/
656     { 0x1e7c, 0x56, 0xde },
657     { 0x1e7d, 0x76, 0xde },
658     { 0x1e7e, 0x56, 0xf2 },
659     { 0x1e7f, 0x76, 0xf2 },
660     { 0x1e80, 0x57, 0xcc },
661     { 0x1e81, 0x77, 0xcc },
662     { 0x1e82, 0x57, 0xec },
663     { 0x1e83, 0x77, 0xec },
664     { 0x1e88, 0x57, 0xf2 },
665     { 0x1e89, 0x77, 0xf2 },
666     { 0x1e92, 0x5a, 0xf2 },
667     { 0x1e93, 0x7a, 0xf2 },
668     { 0x1ea0, 0x41, 0xf2 },
669     { 0x1ea1, 0x61, 0xf2 },
670     { 0x1ea2, 0x41, 0xd2 },
671     { 0x1ea3, 0x61, 0xd2 },
672     { 0x1ea4, 0xc2, 0xec },
673     { 0x1ea5, 0xe2, 0xec },
674     { 0x1ea6, 0xc2, 0xcc },
675     { 0x1ea7, 0xe2, 0xcc },
676     { 0x1ea8, 0xc2, 0xd2 },
677     { 0x1ea9, 0xe2, 0xd2 },
678     { 0x1eaa, 0xc2, 0xde },
679     { 0x1eab, 0xe2, 0xde },
680     { 0x1eac, 0xc2, 0xf2 },
681     { 0x1ead, 0xe2, 0xf2 },
682     { 0x1eae, 0xc3, 0xec },
683     { 0x1eaf, 0xe3, 0xec },
684     { 0x1eb0, 0xc3, 0xcc },
685     { 0x1eb1, 0xe3, 0xcc },
686     { 0x1eb2, 0xc3, 0xd2 },
687     { 0x1eb3, 0xe3, 0xd2 },
688     { 0x1eb4, 0xc3, 0xde },
689     { 0x1eb5, 0xe3, 0xde },
690     { 0x1eb6, 0xc3, 0xf2 },
691     { 0x1eb7, 0xe3, 0xf2 },
692     { 0x1eb8, 0x45, 0xf2 },
693     { 0x1eb9, 0x65, 0xf2 },
694     { 0x1eba, 0x45, 0xd2 },
695     { 0x1ebb, 0x65, 0xd2 },
696     { 0x1ebc, 0x45, 0xde },
697     { 0x1ebd, 0x65, 0xde },
698     { 0x1ebe, 0xca, 0xec },
699     { 0x1ebf, 0xea, 0xec },
700     { 0x1ec0, 0xca, 0xcc },
701     { 0x1ec1, 0xea, 0xcc },
702     { 0x1ec2, 0xca, 0xd2 },
703     { 0x1ec3, 0xea, 0xd2 },
704     { 0x1ec4, 0xca, 0xde },
705     { 0x1ec5, 0xea, 0xde },
706     { 0x1ec6, 0xca, 0xf2 },
707     { 0x1ec7, 0xea, 0xf2 },
708     { 0x1ec8, 0x49, 0xd2 },
709     { 0x1ec9, 0x69, 0xd2 },
710     { 0x1eca, 0x49, 0xf2 },
711     { 0x1ecb, 0x69, 0xf2 },
712     { 0x1ecc, 0x4f, 0xf2 },
713     { 0x1ecd, 0x6f, 0xf2 },
714     { 0x1ece, 0x4f, 0xd2 },
715     { 0x1ecf, 0x6f, 0xd2 },
716     { 0x1ed0, 0xd4, 0xec },
717     { 0x1ed1, 0xf4, 0xec },
718     { 0x1ed2, 0xd4, 0xcc },
719     { 0x1ed3, 0xf4, 0xcc },
720     { 0x1ed4, 0xd4, 0xd2 },
721     { 0x1ed5, 0xf4, 0xd2 },
722     { 0x1ed6, 0xd4, 0xde },
723     { 0x1ed7, 0xf4, 0xde },
724     { 0x1ed8, 0xd4, 0xf2 },
725     { 0x1ed9, 0xf4, 0xf2 },
726     { 0x1eda, 0xd5, 0xec },
727     { 0x1edb, 0xf5, 0xec },
728     { 0x1edc, 0xd5, 0xcc },
729     { 0x1edd, 0xf5, 0xcc },
730     { 0x1ede, 0xd5, 0xd2 },
731     { 0x1edf, 0xf5, 0xd2 },
732     { 0x1ee0, 0xd5, 0xde },
733     { 0x1ee1, 0xf5, 0xde },
734     { 0x1ee2, 0xd5, 0xf2 },
735     { 0x1ee3, 0xf5, 0xf2 },
736     { 0x1ee4, 0x55, 0xf2 },
737     { 0x1ee5, 0x75, 0xf2 },
738     { 0x1ee6, 0x55, 0xd2 },
739     { 0x1ee7, 0x75, 0xd2 },
740     { 0x1ee8, 0xdd, 0xec },
741     { 0x1ee9, 0xfd, 0xec },
742     { 0x1eea, 0xdd, 0xcc },
743     { 0x1eeb, 0xfd, 0xcc },
744     { 0x1eec, 0xdd, 0xd2 },
745     { 0x1eed, 0xfd, 0xd2 },
746     { 0x1eee, 0xdd, 0xde },
747     { 0x1eef, 0xfd, 0xde },
748     { 0x1ef0, 0xdd, 0xf2 },
749     { 0x1ef1, 0xfd, 0xf2 },
750     { 0x1ef2, 0x59, 0xcc },
751     { 0x1ef3, 0x79, 0xcc },
752     { 0x1ef4, 0x59, 0xf2 },
753     { 0x1ef5, 0x79, 0xf2 },
754     { 0x1ef6, 0x59, 0xd2 },
755     { 0x1ef7, 0x79, 0xd2 },
756     { 0x1ef8, 0x59, 0xde },
757     { 0x1ef9, 0x79, 0xde },
758     { 0x1fed, 0xa8, 0xcc },
759     { 0x1fee, 0xa8, 0xec },
760   };
761 
762 #define MIN_NEEDED_INPUT	TO_LOOP_MIN_NEEDED_FROM
763 #define MAX_NEEDED_INPUT	TO_LOOP_MAX_NEEDED_FROM
764 #define MIN_NEEDED_OUTPUT	TO_LOOP_MIN_NEEDED_TO
765 #define MAX_NEEDED_OUTPUT	TO_LOOP_MAX_NEEDED_TO
766 #define LOOPFCT			TO_LOOP
767 #define BODY \
768   {									      \
769     uint32_t ch = get32 (inptr);					      \
770 									      \
771     if (ch < 0x0080 || (ch >= 0x00a0 && ch < 0x00c3))			      \
772       {									      \
773 	*outptr++ = ch;							      \
774 	inptr += 4;							      \
775       }									      \
776     else								      \
777       {									      \
778 	unsigned char res;						      \
779 									      \
780 	if (ch >= 0x00c4 && ch < 0x0112)				      \
781 	  res = from_ucs4[ch - 0x00c4 + FROM_IDX_00];			      \
782 	else if (ch >= 0x0152 && ch < 0x01b1)				      \
783 	  res = from_ucs4[ch - 0x0152 + FROM_IDX_01];			      \
784 	else if (ch >= 0x02c6 && ch < 0x02dd)				      \
785 	  res = from_ucs4[ch - 0x02c6 + FROM_IDX_02];			      \
786 	else if (ch >= 0x0300 && ch < 0x0324)				      \
787 	  res = from_ucs4[ch - 0x0300 + FROM_IDX_03];			      \
788 	else if (ch >= 0x0340 && ch < 0x0342) /* Vietnamese tone marks */     \
789 	  res = from_ucs4[ch - 0x0340 + FROM_IDX_03];			      \
790 	else if (ch >= 0x2013 && ch < 0x203b)				      \
791 	  res = from_ucs4[ch - 0x2013 + FROM_IDX_20];			      \
792 	else if (ch == 0x20ab)						      \
793 	  res = 0xfe;							      \
794 	else if (ch == 0x20ac)						      \
795 	  res = 0x80;							      \
796 	else if (ch == 0x2122)						      \
797 	  res = 0x99;							      \
798 	else								      \
799 	  {								      \
800 	    UNICODE_TAG_HANDLER (ch, 4);				      \
801 	    res = 0;							      \
802 	  }								      \
803 									      \
804 	if (__glibc_likely (res != 0))					      \
805 	  {								      \
806 	    *outptr++ = res;						      \
807 	    inptr += 4;							      \
808 	  }								      \
809 	else								      \
810 	  {								      \
811 	    /* Try canonical decomposition.  */				      \
812 	    unsigned int i1, i2;					      \
813 									      \
814 	    i1 = 0;							      \
815 	    i2 = sizeof (decomp_table) / sizeof (decomp_table[0]) - 1;	      \
816 	    if (ch >= decomp_table[i1].composed				      \
817 		&& ch <= decomp_table[i2].composed)			      \
818 	      {								      \
819 		unsigned int i;						      \
820 									      \
821 		for (;;)						      \
822 		  {							      \
823 		    i = (i1 + i2) >> 1;					      \
824 		    if (ch == decomp_table[i].composed)			      \
825 		      break;						      \
826 		    if (ch < decomp_table[i].composed)			      \
827 		      {							      \
828 			if (i1 == i)					      \
829 			  goto failed;					      \
830 			i2 = i;						      \
831 		      }							      \
832 		    else						      \
833 		      {							      \
834 			if (i1 != i)					      \
835 			  i1 = i;					      \
836 			else						      \
837 			  {						      \
838 			    i = i2;					      \
839 			    if (ch == decomp_table[i].composed)		      \
840 			      break;					      \
841 			    goto failed;				      \
842 			  }						      \
843 		      }							      \
844 		  }							      \
845 									      \
846 		/* See whether we have room for two bytes.  */		      \
847 		if (__glibc_unlikely (outptr + 1 >= outend))		      \
848 		  {							      \
849 		    result = __GCONV_FULL_OUTPUT;			      \
850 		    break;						      \
851 		  }							      \
852 									      \
853 		/* Found a canonical decomposition.  */			      \
854 		*outptr++ = decomp_table[i].base;			      \
855 		*outptr++ = decomp_table[i].comb1;			      \
856 		inptr += 4;						      \
857 		continue;						      \
858 	      }								      \
859 									      \
860 	  failed:							      \
861 	    /* This is an illegal character.  */			      \
862 	    STANDARD_TO_LOOP_ERR_HANDLER (4);				      \
863 	  }								      \
864       }									      \
865   }
866 #define LOOP_NEED_FLAGS
867 #define EXTRA_LOOP_DECLS	, int *statep
868 #include <iconv/loop.c>
869 
870 
871 /* Now define the toplevel functions.  */
872 #include <iconv/skeleton.c>
873