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2015-08-24 Wilco Dijkstra <wdijkstr@arm.com>
[glibc.git] / iconvdata / cp1255.c
blob5de7337c947175d595af32a32229f85b2ef64a09
1 /* Conversion from and to CP1255.
2 Copyright (C) 1998-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998,
5 and Bruno Haible <haible@clisp.cons.org>, 2001.
6
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
11
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <http://www.gnu.org/licenses/>. */
20
21 #include <dlfcn.h>
22 #include <stdint.h>
23 #include <assert.h>
24
25 #define NELEMS(arr) (sizeof (arr) / sizeof (arr[0]))
26
27 /* Definitions used in the body of the `gconv' function. */
28 #define CHARSET_NAME "CP1255//"
29 #define FROM_LOOP from_cp1255
30 #define TO_LOOP to_cp1255
31 #define DEFINE_INIT 1
32 #define DEFINE_FINI 1
33 #define ONE_DIRECTION 0
34 #define FROM_LOOP_MIN_NEEDED_FROM 1
35 #define FROM_LOOP_MAX_NEEDED_FROM 1
36 #define FROM_LOOP_MIN_NEEDED_TO 4
37 #define FROM_LOOP_MAX_NEEDED_TO 4
38 #define TO_LOOP_MIN_NEEDED_FROM 4
39 #define TO_LOOP_MAX_NEEDED_FROM 4
40 #define TO_LOOP_MIN_NEEDED_TO 1
41 #define TO_LOOP_MAX_NEEDED_TO 3
42 #define PREPARE_LOOP \
43 int saved_state; \
44 int *statep = &data->__statep->__count;
45 #define EXTRA_LOOP_ARGS , statep
46
47
48 /* Since we might have to reset input pointer we must be able to save
49 and restore the state. */
50 #define SAVE_RESET_STATE(Save) \
51 if (Save) \
52 saved_state = *statep; \
53 else \
54 *statep = saved_state
55
56
57 /* During CP1255 to UCS4 conversion, the COUNT element of the state
58 contains the last UCS4 character, shifted by 3 bits. */
59
60
61 /* Since this is a stateful encoding we have to provide code which resets
62 the output state to the initial state. This has to be done during the
63 flushing. */
64 #define EMIT_SHIFT_TO_INIT \
65 if (data->__statep->__count != 0) \
66 { \
67 if (FROM_DIRECTION) \
68 { \
69 if (__glibc_likely (outbuf + 4 <= outend)) \
70 { \
71 /* Write out the last character. */ \
72 *((uint32_t *) outbuf) = data->__statep->__count >> 3; \
73 outbuf += sizeof (uint32_t); \
74 data->__statep->__count = 0; \
75 } \
76 else \
77 /* We don't have enough room in the output buffer. */ \
78 status = __GCONV_FULL_OUTPUT; \
79 } \
80 else \
81 /* We don't use shift states in the TO_DIRECTION. */ \
82 data->__statep->__count = 0; \
83 }
84
85
86 /* First define the conversion function from CP1255 to UCS4. */
87
88 static const uint16_t to_ucs4[128] = {
89 /* 0x80 */
90 0x20AC, 0, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
91 0x02C6, 0x2030, 0, 0x2039, 0, 0, 0, 0,
92 /* 0x90 */
93 0, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
94 0x02DC, 0x2122, 0, 0x203A, 0, 0, 0, 0,
95 /* 0xA0 */
96 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x20AA, 0x00A5, 0x00A6, 0x00A7,
97 0x00A8, 0x00A9, 0x00D7, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
98 /* 0xB0 */
99 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
100 0x00B8, 0x00B9, 0x00F7, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
101 /* 0xC0 */
102 0x05B0, 0x05B1, 0x05B2, 0x05B3, 0x05B4, 0x05B5, 0x05B6, 0x05B7,
103 0x05B8, 0x05B9, 0, 0x05BB, 0x05BC, 0x05BD, 0x05BE, 0x05BF,
104 /* 0xD0 */
105 0x05C0, 0x05C1, 0x05C2, 0x05C3, 0x05F0, 0x05F1, 0x05F2, 0x05F3,
106 0x05F4, 0, 0, 0, 0, 0, 0, 0,
107 /* 0xE0 */
108 0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7,
109 0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF,
110 /* 0xF0 */
111 0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7,
112 0x05E8, 0x05E9, 0x05EA, 0, 0, 0x200E, 0x200F, 0,
113 };
114
115 /* CP1255 contains eight combining characters:
116 0x05b4, 0x05b7, 0x05b8, 0x05b9, 0x05bc, 0x05bf, 0x05c1, 0x05c2. */
117
118 /* Composition tables for each of the relevant combining characters. */
119 static const struct {
120 uint16_t base;
121 uint16_t composed;
122 } comp_table_data[] = {
123 #define COMP_TABLE_IDX_05B4 0
124 #define COMP_TABLE_LEN_05B4 1
125 { 0x05D9, 0xFB1D },
126 #define COMP_TABLE_IDX_05B7 (COMP_TABLE_IDX_05B4 + COMP_TABLE_LEN_05B4)
127 #define COMP_TABLE_LEN_05B7 2
128 { 0x05D0, 0xFB2E },
129 { 0x05F2, 0xFB1F },
130 #define COMP_TABLE_IDX_05B8 (COMP_TABLE_IDX_05B7 + COMP_TABLE_LEN_05B7)
131 #define COMP_TABLE_LEN_05B8 1
132 { 0x05D0, 0xFB2F },
133 #define COMP_TABLE_IDX_05B9 (COMP_TABLE_IDX_05B8 + COMP_TABLE_LEN_05B8)
134 #define COMP_TABLE_LEN_05B9 1
135 { 0x05D5, 0xFB4B },
136 #define COMP_TABLE_IDX_05BC (COMP_TABLE_IDX_05B9 + COMP_TABLE_LEN_05B9)
137 #define COMP_TABLE_LEN_05BC 24
138 { 0x05D0, 0xFB30 },
139 { 0x05D1, 0xFB31 },
140 { 0x05D2, 0xFB32 },
141 { 0x05D3, 0xFB33 },
142 { 0x05D4, 0xFB34 },
143 { 0x05D5, 0xFB35 },
144 { 0x05D6, 0xFB36 },
145 { 0x05D8, 0xFB38 },
146 { 0x05D9, 0xFB39 },
147 { 0x05DA, 0xFB3A },
148 { 0x05DB, 0xFB3B },
149 { 0x05DC, 0xFB3C },
150 { 0x05DE, 0xFB3E },
151 { 0x05E0, 0xFB40 },
152 { 0x05E1, 0xFB41 },
153 { 0x05E3, 0xFB43 },
154 { 0x05E4, 0xFB44 },
155 { 0x05E6, 0xFB46 },
156 { 0x05E7, 0xFB47 },
157 { 0x05E8, 0xFB48 },
158 { 0x05E9, 0xFB49 },
159 { 0x05EA, 0xFB4A },
160 { 0xFB2A, 0xFB2C },
161 { 0xFB2B, 0xFB2D },
162 #define COMP_TABLE_IDX_05BF (COMP_TABLE_IDX_05BC + COMP_TABLE_LEN_05BC)
163 #define COMP_TABLE_LEN_05BF 3
164 { 0x05D1, 0xFB4C },
165 { 0x05DB, 0xFB4D },
166 { 0x05E4, 0xFB4E },
167 #define COMP_TABLE_IDX_05C1 (COMP_TABLE_IDX_05BF + COMP_TABLE_LEN_05BF)
168 #define COMP_TABLE_LEN_05C1 2
169 { 0x05E9, 0xFB2A },
170 { 0xFB49, 0xFB2C },
171 #define COMP_TABLE_IDX_05C2 (COMP_TABLE_IDX_05C1 + COMP_TABLE_LEN_05C1)
172 #define COMP_TABLE_LEN_05C2 2
173 { 0x05E9, 0xFB2B },
174 { 0xFB49, 0xFB2D },
175 #define COMP_TABLE_IDX_END (COMP_TABLE_IDX_05C2 + COMP_TABLE_LEN_05C2)
176 };
177 /* Compile-time verification of table size. */
178 typedef int verify1[(NELEMS (comp_table_data) == COMP_TABLE_IDX_END) - 1];
179
180 static const struct { unsigned int idx; unsigned int len; } comp_table[8] = {
181 { COMP_TABLE_IDX_05B4, COMP_TABLE_LEN_05B4 },
182 { COMP_TABLE_IDX_05B7, COMP_TABLE_LEN_05B7 },
183 { COMP_TABLE_IDX_05B8, COMP_TABLE_LEN_05B8 },
184 { COMP_TABLE_IDX_05B9, COMP_TABLE_LEN_05B9 },
185 { COMP_TABLE_IDX_05BC, COMP_TABLE_LEN_05BC },
186 { COMP_TABLE_IDX_05BF, COMP_TABLE_LEN_05BF },
187 { COMP_TABLE_IDX_05C1, COMP_TABLE_LEN_05C1 },
188 { COMP_TABLE_IDX_05C2, COMP_TABLE_LEN_05C2 },
189 };
190
191 #define MIN_NEEDED_INPUT FROM_LOOP_MIN_NEEDED_FROM
192 #define MAX_NEEDED_INPUT FROM_LOOP_MAX_NEEDED_FROM
193 #define MIN_NEEDED_OUTPUT FROM_LOOP_MIN_NEEDED_TO
194 #define MAX_NEEDED_OUTPUT FROM_LOOP_MAX_NEEDED_TO
195 #define LOOPFCT FROM_LOOP
196 #define BODY \
197 { \
198 uint32_t ch = *inptr; \
199 uint32_t last_ch; \
200 int must_buffer_ch; \
201 \
202 if (ch >= 0x80) \
203 { \
204 ch = to_ucs4[ch - 0x80]; \
205 if (__glibc_unlikely (ch == L'\0')) \
206 { \
207 /* This is an illegal character. */ \
208 STANDARD_FROM_LOOP_ERR_HANDLER (1); \
209 } \
210 } \
211 \
212 /* Determine whether there is a buffered character pending. */ \
213 last_ch = *statep >> 3; \
214 \
215 /* We have to buffer ch if it is a possible match in comp_table_data. */ \
216 must_buffer_ch = (ch >= 0x05d0 && ch <= 0x05f2); \
217 \
218 if (last_ch) \
219 { \
220 if (ch >= 0x05b0 && ch < 0x05c5) \
221 { \
222 /* See whether last_ch and ch can be combined. */ \
223 unsigned int i, i1, i2; \
224 \
225 switch (ch) \
226 { \
227 case 0x05b4: \
228 i = 0; \
229 break; \
230 case 0x05b7: \
231 i = 1; \
232 break; \
233 case 0x05b8: \
234 i = 2; \
235 break; \
236 case 0x05b9: \
237 i = 3; \
238 break; \
239 case 0x05bc: \
240 i = 4; \
241 break; \
242 case 0x05bf: \
243 i = 5; \
244 break; \
245 case 0x05c1: \
246 i = 6; \
247 break; \
248 case 0x05c2: \
249 i = 7; \
250 break; \
251 default: \
252 goto not_combining; \
253 } \
254 \
255 i1 = comp_table[i].idx; \
256 i2 = i1 + comp_table[i].len - 1; \
257 \
258 if (last_ch >= comp_table_data[i1].base \
259 && last_ch <= comp_table_data[i2].base) \
260 { \
261 for (;;) \
262 { \
263 i = (i1 + i2) >> 1; \
264 if (last_ch == comp_table_data[i].base) \
265 break; \
266 if (last_ch < comp_table_data[i].base) \
267 { \
268 if (i1 == i) \
269 goto not_combining; \
270 i2 = i; \
271 } \
272 else \
273 { \
274 if (i1 != i) \
275 i1 = i; \
276 else \
277 { \
278 i = i2; \
279 if (last_ch == comp_table_data[i].base) \
280 break; \
281 goto not_combining; \
282 } \
283 } \
284 } \
285 last_ch = comp_table_data[i].composed; \
286 if (last_ch == 0xfb2a || last_ch == 0xfb2b \
287 || last_ch == 0xfb49) \
288 /* Buffer the combined character. */ \
289 *statep = last_ch << 3; \
290 else \
291 { \
292 /* Output the combined character. */ \
293 put32 (outptr, last_ch); \
294 outptr += 4; \
295 *statep = 0; \
296 } \
297 ++inptr; \
298 continue; \
299 } \
300 } \
301 \
302 not_combining: \
303 /* Output the buffered character. */ \
304 put32 (outptr, last_ch); \
305 outptr += 4; \
306 *statep = 0; \
307 \
308 /* If we don't have enough room to output ch as well, then deal \
309 with it in another round. */ \
310 if (!must_buffer_ch && __builtin_expect (outptr + 4 > outend, 0)) \
311 continue; \
312 } \
313 \
314 if (must_buffer_ch) \
315 *statep = ch << 3; \
316 else \
317 { \
318 put32 (outptr, ch); \
319 outptr += 4; \
320 } \
321 ++inptr; \
322 }
323 #define LOOP_NEED_FLAGS
324 #define EXTRA_LOOP_DECLS , int *statep
325 #define ONEBYTE_BODY \
326 { \
327 if (c < 0x80) \
328 return c; \
329 uint32_t ch = to_ucs4[c - 0x80]; \
330 if (ch == L'\0' || (ch >= 0x05d0 && ch <= 0x05f2)) \
331 return WEOF; \
332 return ch; \
333 }
334 #include <iconv/loop.c>
335
336
337 /* Next, define the conversion function from UCS4 to CP1255. */
338
339 static const unsigned char from_ucs4[] = {
340 #define FROM_IDX_00 0
341 0xa0, 0xa1, 0xa2, 0xa3, 0x00, 0xa5, 0xa6, 0xa7, /* 0x00a0-0x00a7 */
342 0xa8, 0xa9, 0x00, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0x00a8-0x00af */
343 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0x00b0-0x00b7 */
344 0xb8, 0xb9, 0x00, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0x00b8-0x00bf */
345 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00c0-0x00c7 */
346 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00c8-0x00cf */
347 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa, /* 0x00d0-0x00d7 */
348 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00d8-0x00df */
349 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00e0-0x00e7 */
350 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00e8-0x00ef */
351 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xba, /* 0x00f0-0x00f7 */
352 #define FROM_IDX_02 (FROM_IDX_00 + 88)
353 0x88, 0x00, /* 0x02c6-0x02c7 */
354 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x02c8-0x02cf */
355 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x02d0-0x02d7 */
356 0x00, 0x00, 0x00, 0x00, 0x98, /* 0x02d8-0x02dc */
357 #define FROM_IDX_05 (FROM_IDX_02 + 23)
358 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x05b0-0x05b7 */
359 0xc8, 0xc9, 0x00, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x05b8-0x05bf */
360 0xd0, 0xd1, 0xd2, 0xd3, 0x00, 0x00, 0x00, 0x00, /* 0x05c0-0x05c7 */
361 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x05c8-0x05cf */
362 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x05d0-0x05d7 */
363 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x05d8-0x05df */
364 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0x05e0-0x05e7 */
365 0xf8, 0xf9, 0xfa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x05e8-0x05ef */
366 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, /* 0x05f0-0x05f4 */
367 #define FROM_IDX_20 (FROM_IDX_05 + 69)
368 0xfd, 0xfe, /* 0x200e-0x200f */
369 0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x2010-0x2017 */
370 0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, /* 0x2018-0x201f */
371 0x86, 0x87, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x2020-0x2027 */
372 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2028-0x202f */
373 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2030-0x2037 */
374 0x00, 0x8b, 0x9b, /* 0x2038-0x203a */
375 #define FROM_IDX_FF (FROM_IDX_20 + 45)
376 };
377 /* Compile-time verification of table size. */
378 typedef int verify2[(NELEMS (from_ucs4) == FROM_IDX_FF) - 1];
379
380 static const unsigned char comb_table[8] = {
381 0xc4, 0xc7, 0xc8, 0xc9, 0xcc, 0xcf, 0xd1, 0xd2,
382 };
383
384 /* Decomposition table for the relevant Unicode characters. */
385 static const struct {
386 uint16_t composed;
387 uint16_t base;
388 uint32_t comb1 : 8;
389 int32_t comb2 : 8;
390 } decomp_table[] = {
391 { 0xFB1D, 0x05D9, 0, -1 },
392 { 0xFB1F, 0x05F2, 1, -1 },
393 { 0xFB2A, 0x05E9, 6, -1 },
394 { 0xFB2B, 0x05E9, 7, -1 },
395 { 0xFB2C, 0x05E9, 4, 6 },
396 { 0xFB2D, 0x05E9, 4, 7 },
397 { 0xFB2E, 0x05D0, 1, -1 },
398 { 0xFB2F, 0x05D0, 2, -1 },
399 { 0xFB30, 0x05D0, 4, -1 },
400 { 0xFB31, 0x05D1, 4, -1 },
401 { 0xFB32, 0x05D2, 4, -1 },
402 { 0xFB33, 0x05D3, 4, -1 },
403 { 0xFB34, 0x05D4, 4, -1 },
404 { 0xFB35, 0x05D5, 4, -1 },
405 { 0xFB36, 0x05D6, 4, -1 },
406 { 0xFB38, 0x05D8, 4, -1 },
407 { 0xFB39, 0x05D9, 4, -1 },
408 { 0xFB3A, 0x05DA, 4, -1 },
409 { 0xFB3B, 0x05DB, 4, -1 },
410 { 0xFB3C, 0x05DC, 4, -1 },
411 { 0xFB3E, 0x05DE, 4, -1 },
412 { 0xFB40, 0x05E0, 4, -1 },
413 { 0xFB41, 0x05E1, 4, -1 },
414 { 0xFB43, 0x05E3, 4, -1 },
415 { 0xFB44, 0x05E4, 4, -1 },
416 { 0xFB46, 0x05E6, 4, -1 },
417 { 0xFB47, 0x05E7, 4, -1 },
418 { 0xFB48, 0x05E8, 4, -1 },
419 { 0xFB49, 0x05E9, 4, -1 },
420 { 0xFB4A, 0x05EA, 4, -1 },
421 { 0xFB4B, 0x05D5, 3, -1 },
422 { 0xFB4C, 0x05D1, 5, -1 },
423 { 0xFB4D, 0x05DB, 5, -1 },
424 { 0xFB4E, 0x05E4, 5, -1 },
425 };
426
427 #define MIN_NEEDED_INPUT TO_LOOP_MIN_NEEDED_FROM
428 #define MAX_NEEDED_INPUT TO_LOOP_MAX_NEEDED_FROM
429 #define MIN_NEEDED_OUTPUT TO_LOOP_MIN_NEEDED_TO
430 #define MAX_NEEDED_OUTPUT TO_LOOP_MAX_NEEDED_TO
431 #define LOOPFCT TO_LOOP
432 #define BODY \
433 { \
434 uint32_t ch = get32 (inptr); \
435 \
436 if (ch < 0x0080) \
437 { \
438 *outptr++ = ch; \
439 inptr += 4; \
440 } \
441 else \
442 { \
443 unsigned char res; \
444 \
445 if (ch >= 0x00a0 && ch < 0x00f8) \
446 res = from_ucs4[ch - 0x00a0 + FROM_IDX_00]; \
447 else if (ch == 0x0192) \
448 res = 0x83; \
449 else if (ch >= 0x02c6 && ch < 0x02dd) \
450 res = from_ucs4[ch - 0x02c6 + FROM_IDX_02]; \
451 else if (ch >= 0x05b0 && ch < 0x05f5) \
452 res = from_ucs4[ch - 0x05b0 + FROM_IDX_05]; \
453 else if (ch >= 0x200e && ch < 0x203b) \
454 res = from_ucs4[ch - 0x200e + FROM_IDX_20]; \
455 else if (ch == 0x20aa) \
456 res = 0xa4; \
457 else if (ch == 0x20ac) \
458 res = 0x80; \
459 else if (ch == 0x2122) \
460 res = 0x99; \
461 else \
462 { \
463 UNICODE_TAG_HANDLER (ch, 4); \
464 res = 0; \
465 } \
466 \
467 if (__glibc_likely (res != 0)) \
468 { \
469 *outptr++ = res; \
470 inptr += 4; \
471 } \
472 else \
473 { \
474 /* Try canonical decomposition. */ \
475 unsigned int i1, i2; \
476 \
477 i1 = 0; \
478 i2 = sizeof (decomp_table) / sizeof (decomp_table[0]) - 1; \
479 if (ch >= decomp_table[i1].composed \
480 && ch <= decomp_table[i2].composed) \
481 { \
482 unsigned int i; \
483 \
484 for (;;) \
485 { \
486 i = (i1 + i2) >> 1; \
487 if (ch == decomp_table[i].composed) \
488 break; \
489 if (ch < decomp_table[i].composed) \
490 { \
491 if (i1 == i) \
492 goto failed; \
493 i2 = i; \
494 } \
495 else \
496 { \
497 if (i1 != i) \
498 i1 = i; \
499 else \
500 { \
501 i = i2; \
502 if (ch == decomp_table[i].composed) \
503 break; \
504 goto failed; \
505 } \
506 } \
507 } \
508 \
509 /* Found a canonical decomposition. */ \
510 ch = decomp_table[i].base; \
511 /* ch is one of 0x05d0..0x05d6, 0x05d8..0x05dc, 0x05de, \
512 0x05e0..0x05e1, 0x05e3..0x05e4, 0x05e6..0x05ea, 0x05f2. */ \
513 ch = from_ucs4[ch - 0x05b0 + FROM_IDX_05]; \
514 assert (ch != 0); \
515 \
516 if (decomp_table[i].comb2 < 0) \
517 { \
518 /* See whether we have room for two bytes. */ \
519 if (__glibc_unlikely (outptr + 1 >= outend)) \
520 { \
521 result = __GCONV_FULL_OUTPUT; \
522 break; \
523 } \
524 \
525 *outptr++ = (unsigned char) ch; \
526 *outptr++ = comb_table[decomp_table[i].comb1]; \
527 } \
528 else \
529 { \
530 /* See whether we have room for three bytes. */ \
531 if (__glibc_unlikely (outptr + 2 >= outend)) \
532 { \
533 result = __GCONV_FULL_OUTPUT; \
534 break; \
535 } \
536 \
537 *outptr++ = (unsigned char) ch; \
538 *outptr++ = comb_table[decomp_table[i].comb1]; \
539 *outptr++ = comb_table[decomp_table[i].comb2]; \
540 } \
541 \
542 inptr += 4; \
543 continue; \
544 } \
545 \
546 failed: \
547 /* This is an illegal character. */ \
548 STANDARD_TO_LOOP_ERR_HANDLER (4); \
549 } \
550 } \
551 }
552 #define LOOP_NEED_FLAGS
553 #define EXTRA_LOOP_DECLS , int *statep
554 #include <iconv/loop.c>
555
556
557 /* Now define the toplevel functions. */
558 #include <iconv/skeleton.c>
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