1 /* Set the current locale. -*- coding: utf-8 -*-
2 Copyright (C) 2009, 2011-2018 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 /* Written by Bruno Haible <bruno@clisp.org>, 2009. */
18
19 #include <config.h>
20
21 /* Override setlocale() so that when the default locale is requested
22 (locale = ""), the environment variables LC_ALL, LC_*, and LANG are
23 considered.
24 Also include all the functionality from libintl's setlocale() override. */
25
26 /* Please keep this file in sync with
27 gettext/gettext-runtime/intl/setlocale.c ! */
28
29 /* Specification. */
30 #include <locale.h>
31
32 #include <stdlib.h>
33 #include <string.h>
34
35 #include "localename.h"
36
37 #if 1
38
39 # undef setlocale
40
41 /* Return string representation of locale category CATEGORY. */
42 static const char *
category_to_name(int category)43 category_to_name (int category)
44 {
45 const char *retval;
46
47 switch (category)
48 {
49 case LC_COLLATE:
50 retval = "LC_COLLATE";
51 break;
52 case LC_CTYPE:
53 retval = "LC_CTYPE";
54 break;
55 case LC_MONETARY:
56 retval = "LC_MONETARY";
57 break;
58 case LC_NUMERIC:
59 retval = "LC_NUMERIC";
60 break;
61 case LC_TIME:
62 retval = "LC_TIME";
63 break;
64 case LC_MESSAGES:
65 retval = "LC_MESSAGES";
66 break;
67 default:
68 /* If you have a better idea for a default value let me know. */
69 retval = "LC_XXX";
70 }
71
72 return retval;
73 }
74
75 # if defined _WIN32 && ! defined __CYGWIN__
76
77 /* The native Windows setlocale() function expects locale names of the form
78 "German" or "German_Germany" or "DEU", but not "de" or "de_DE". We need
79 to convert the names from the form with ISO 639 language code and ISO 3166
80 country code to the form with English names or with three-letter identifier.
81 The three-letter identifiers known by a Windows XP SP2 or SP3 are:
82 AFK Afrikaans_South Africa.1252
83 ARA Arabic_Saudi Arabia.1256
84 ARB Arabic_Lebanon.1256
85 ARE Arabic_Egypt.1256
86 ARG Arabic_Algeria.1256
87 ARH Arabic_Bahrain.1256
88 ARI Arabic_Iraq.1256
89 ARJ Arabic_Jordan.1256
90 ARK Arabic_Kuwait.1256
91 ARL Arabic_Libya.1256
92 ARM Arabic_Morocco.1256
93 ARO Arabic_Oman.1256
94 ARQ Arabic_Qatar.1256
95 ARS Arabic_Syria.1256
96 ART Arabic_Tunisia.1256
97 ARU Arabic_U.A.E..1256
98 ARY Arabic_Yemen.1256
99 AZE Azeri (Latin)_Azerbaijan.1254
100 BEL Belarusian_Belarus.1251
101 BGR Bulgarian_Bulgaria.1251
102 BSB Bosnian_Bosnia and Herzegovina.1250
103 BSC Bosnian (Cyrillic)_Bosnia and Herzegovina.1250 (wrong encoding!)
104 CAT Catalan_Spain.1252
105 CHH Chinese_Hong Kong S.A.R..950
106 CHI Chinese_Singapore.936
107 CHS Chinese_People's Republic of China.936
108 CHT Chinese_Taiwan.950
109 CSY Czech_Czech Republic.1250
110 CYM Welsh_United Kingdom.1252
111 DAN Danish_Denmark.1252
112 DEA German_Austria.1252
113 DEC German_Liechtenstein.1252
114 DEL German_Luxembourg.1252
115 DES German_Switzerland.1252
116 DEU German_Germany.1252
117 ELL Greek_Greece.1253
118 ENA English_Australia.1252
119 ENB English_Caribbean.1252
120 ENC English_Canada.1252
121 ENG English_United Kingdom.1252
122 ENI English_Ireland.1252
123 ENJ English_Jamaica.1252
124 ENL English_Belize.1252
125 ENP English_Republic of the Philippines.1252
126 ENS English_South Africa.1252
127 ENT English_Trinidad and Tobago.1252
128 ENU English_United States.1252
129 ENW English_Zimbabwe.1252
130 ENZ English_New Zealand.1252
131 ESA Spanish_Panama.1252
132 ESB Spanish_Bolivia.1252
133 ESC Spanish_Costa Rica.1252
134 ESD Spanish_Dominican Republic.1252
135 ESE Spanish_El Salvador.1252
136 ESF Spanish_Ecuador.1252
137 ESG Spanish_Guatemala.1252
138 ESH Spanish_Honduras.1252
139 ESI Spanish_Nicaragua.1252
140 ESL Spanish_Chile.1252
141 ESM Spanish_Mexico.1252
142 ESN Spanish_Spain.1252
143 ESO Spanish_Colombia.1252
144 ESP Spanish_Spain.1252
145 ESR Spanish_Peru.1252
146 ESS Spanish_Argentina.1252
147 ESU Spanish_Puerto Rico.1252
148 ESV Spanish_Venezuela.1252
149 ESY Spanish_Uruguay.1252
150 ESZ Spanish_Paraguay.1252
151 ETI Estonian_Estonia.1257
152 EUQ Basque_Spain.1252
153 FAR Farsi_Iran.1256
154 FIN Finnish_Finland.1252
155 FOS Faroese_Faroe Islands.1252
156 FPO Filipino_Philippines.1252
157 FRA French_France.1252
158 FRB French_Belgium.1252
159 FRC French_Canada.1252
160 FRL French_Luxembourg.1252
161 FRM French_Principality of Monaco.1252
162 FRS French_Switzerland.1252
163 FYN Frisian_Netherlands.1252
164 GLC Galician_Spain.1252
165 HEB Hebrew_Israel.1255
166 HRB Croatian_Bosnia and Herzegovina.1250
167 HRV Croatian_Croatia.1250
168 HUN Hungarian_Hungary.1250
169 IND Indonesian_Indonesia.1252
170 IRE Irish_Ireland.1252
171 ISL Icelandic_Iceland.1252
172 ITA Italian_Italy.1252
173 ITS Italian_Switzerland.1252
174 IUK Inuktitut (Latin)_Canada.1252
175 JPN Japanese_Japan.932
176 KKZ Kazakh_Kazakhstan.1251
177 KOR Korean_Korea.949
178 KYR Kyrgyz_Kyrgyzstan.1251
179 LBX Luxembourgish_Luxembourg.1252
180 LTH Lithuanian_Lithuania.1257
181 LVI Latvian_Latvia.1257
182 MKI FYRO Macedonian_Former Yugoslav Republic of Macedonia.1251
183 MON Mongolian_Mongolia.1251
184 MPD Mapudungun_Chile.1252
185 MSB Malay_Brunei Darussalam.1252
186 MSL Malay_Malaysia.1252
187 MWK Mohawk_Canada.1252
188 NLB Dutch_Belgium.1252
189 NLD Dutch_Netherlands.1252
190 NON Norwegian-Nynorsk_Norway.1252
191 NOR Norwegian (Bokmål)_Norway.1252
192 NSO Northern Sotho_South Africa.1252
193 PLK Polish_Poland.1250
194 PTB Portuguese_Brazil.1252
195 PTG Portuguese_Portugal.1252
196 QUB Quechua_Bolivia.1252
197 QUE Quechua_Ecuador.1252
198 QUP Quechua_Peru.1252
199 RMC Romansh_Switzerland.1252
200 ROM Romanian_Romania.1250
201 RUS Russian_Russia.1251
202 SKY Slovak_Slovakia.1250
203 SLV Slovenian_Slovenia.1250
204 SMA Sami (Southern)_Norway.1252
205 SMB Sami (Southern)_Sweden.1252
206 SME Sami (Northern)_Norway.1252
207 SMF Sami (Northern)_Sweden.1252
208 SMG Sami (Northern)_Finland.1252
209 SMJ Sami (Lule)_Norway.1252
210 SMK Sami (Lule)_Sweden.1252
211 SMN Sami (Inari)_Finland.1252
212 SMS Sami (Skolt)_Finland.1252
213 SQI Albanian_Albania.1250
214 SRB Serbian (Cyrillic)_Serbia and Montenegro.1251
215 SRL Serbian (Latin)_Serbia and Montenegro.1250
216 SRN Serbian (Cyrillic)_Bosnia and Herzegovina.1251
217 SRS Serbian (Latin)_Bosnia and Herzegovina.1250
218 SVE Swedish_Sweden.1252
219 SVF Swedish_Finland.1252
220 SWK Swahili_Kenya.1252
221 THA Thai_Thailand.874
222 TRK Turkish_Turkey.1254
223 TSN Tswana_South Africa.1252
224 TTT Tatar_Russia.1251
225 UKR Ukrainian_Ukraine.1251
226 URD Urdu_Islamic Republic of Pakistan.1256
227 USA English_United States.1252
228 UZB Uzbek (Latin)_Uzbekistan.1254
229 VIT Vietnamese_Viet Nam.1258
230 XHO Xhosa_South Africa.1252
231 ZHH Chinese_Hong Kong S.A.R..950
232 ZHI Chinese_Singapore.936
233 ZHM Chinese_Macau S.A.R..950
234 ZUL Zulu_South Africa.1252
235 */
236
237 /* Table from ISO 639 language code, optionally with country or script suffix,
238 to English name.
239 Keep in sync with the gl_locale_name_from_win32_LANGID function in
240 localename.c! */
241 struct table_entry
242 {
243 const char *code;
244 const char *english;
245 };
246 static const struct table_entry language_table[] =
247 {
248 { "af", "Afrikaans" },
249 { "am", "Amharic" },
250 { "ar", "Arabic" },
251 { "arn", "Mapudungun" },
252 { "as", "Assamese" },
253 { "az@cyrillic", "Azeri (Cyrillic)" },
254 { "az@latin", "Azeri (Latin)" },
255 { "ba", "Bashkir" },
256 { "be", "Belarusian" },
257 { "ber", "Tamazight" },
258 { "ber@arabic", "Tamazight (Arabic)" },
259 { "ber@latin", "Tamazight (Latin)" },
260 { "bg", "Bulgarian" },
261 { "bin", "Edo" },
262 { "bn", "Bengali" },
263 { "bn_BD", "Bengali (Bangladesh)" },
264 { "bn_IN", "Bengali (India)" },
265 { "bnt", "Sutu" },
266 { "bo", "Tibetan" },
267 { "br", "Breton" },
268 { "bs", "BSB" }, /* "Bosnian (Latin)" */
269 { "bs@cyrillic", "BSC" }, /* Bosnian (Cyrillic) */
270 { "ca", "Catalan" },
271 { "chr", "Cherokee" },
272 { "co", "Corsican" },
273 { "cpe", "Hawaiian" },
274 { "cs", "Czech" },
275 { "cy", "Welsh" },
276 { "da", "Danish" },
277 { "de", "German" },
278 { "dsb", "Lower Sorbian" },
279 { "dv", "Divehi" },
280 { "el", "Greek" },
281 { "en", "English" },
282 { "es", "Spanish" },
283 { "et", "Estonian" },
284 { "eu", "Basque" },
285 { "fa", "Farsi" },
286 { "ff", "Fulfulde" },
287 { "fi", "Finnish" },
288 { "fo", "Faroese" }, /* "Faeroese" does not work */
289 { "fr", "French" },
290 { "fy", "Frisian" },
291 { "ga", "IRE" }, /* Gaelic (Ireland) */
292 { "gd", "Gaelic (Scotland)" },
293 { "gd", "Scottish Gaelic" },
294 { "gl", "Galician" },
295 { "gn", "Guarani" },
296 { "gsw", "Alsatian" },
297 { "gu", "Gujarati" },
298 { "ha", "Hausa" },
299 { "he", "Hebrew" },
300 { "hi", "Hindi" },
301 { "hr", "Croatian" },
302 { "hsb", "Upper Sorbian" },
303 { "hu", "Hungarian" },
304 { "hy", "Armenian" },
305 { "id", "Indonesian" },
306 { "ig", "Igbo" },
307 { "ii", "Yi" },
308 { "is", "Icelandic" },
309 { "it", "Italian" },
310 { "iu", "IUK" }, /* Inuktitut */
311 { "ja", "Japanese" },
312 { "ka", "Georgian" },
313 { "kk", "Kazakh" },
314 { "kl", "Greenlandic" },
315 { "km", "Cambodian" },
316 { "km", "Khmer" },
317 { "kn", "Kannada" },
318 { "ko", "Korean" },
319 { "kok", "Konkani" },
320 { "kr", "Kanuri" },
321 { "ks", "Kashmiri" },
322 { "ks_IN", "Kashmiri_India" },
323 { "ks_PK", "Kashmiri (Arabic)_Pakistan" },
324 { "ky", "Kyrgyz" },
325 { "la", "Latin" },
326 { "lb", "Luxembourgish" },
327 { "lo", "Lao" },
328 { "lt", "Lithuanian" },
329 { "lv", "Latvian" },
330 { "mi", "Maori" },
331 { "mk", "FYRO Macedonian" },
332 { "mk", "Macedonian" },
333 { "ml", "Malayalam" },
334 { "mn", "Mongolian" },
335 { "mni", "Manipuri" },
336 { "moh", "Mohawk" },
337 { "mr", "Marathi" },
338 { "ms", "Malay" },
339 { "mt", "Maltese" },
340 { "my", "Burmese" },
341 { "nb", "NOR" }, /* Norwegian Bokmål */
342 { "ne", "Nepali" },
343 { "nic", "Ibibio" },
344 { "nl", "Dutch" },
345 { "nn", "NON" }, /* Norwegian Nynorsk */
346 { "no", "Norwegian" },
347 { "nso", "Northern Sotho" },
348 { "nso", "Sepedi" },
349 { "oc", "Occitan" },
350 { "om", "Oromo" },
351 { "or", "Oriya" },
352 { "pa", "Punjabi" },
353 { "pap", "Papiamentu" },
354 { "pl", "Polish" },
355 { "prs", "Dari" },
356 { "ps", "Pashto" },
357 { "pt", "Portuguese" },
358 { "qu", "Quechua" },
359 { "qut", "K'iche'" },
360 { "rm", "Romansh" },
361 { "ro", "Romanian" },
362 { "ru", "Russian" },
363 { "rw", "Kinyarwanda" },
364 { "sa", "Sanskrit" },
365 { "sah", "Yakut" },
366 { "sd", "Sindhi" },
367 { "se", "Sami (Northern)" },
368 { "se", "Northern Sami" },
369 { "si", "Sinhalese" },
370 { "sk", "Slovak" },
371 { "sl", "Slovenian" },
372 { "sma", "Sami (Southern)" },
373 { "sma", "Southern Sami" },
374 { "smj", "Sami (Lule)" },
375 { "smj", "Lule Sami" },
376 { "smn", "Sami (Inari)" },
377 { "smn", "Inari Sami" },
378 { "sms", "Sami (Skolt)" },
379 { "sms", "Skolt Sami" },
380 { "so", "Somali" },
381 { "sq", "Albanian" },
382 { "sr", "Serbian (Latin)" },
383 { "sr@cyrillic", "SRB" }, /* Serbian (Cyrillic) */
384 { "sv", "Swedish" },
385 { "sw", "Swahili" },
386 { "syr", "Syriac" },
387 { "ta", "Tamil" },
388 { "te", "Telugu" },
389 { "tg", "Tajik" },
390 { "th", "Thai" },
391 { "ti", "Tigrinya" },
392 { "tk", "Turkmen" },
393 { "tl", "Filipino" },
394 { "tn", "Tswana" },
395 { "tr", "Turkish" },
396 { "ts", "Tsonga" },
397 { "tt", "Tatar" },
398 { "ug", "Uighur" },
399 { "uk", "Ukrainian" },
400 { "ur", "Urdu" },
401 { "uz", "Uzbek" },
402 { "uz", "Uzbek (Latin)" },
403 { "uz@cyrillic", "Uzbek (Cyrillic)" },
404 { "ve", "Venda" },
405 { "vi", "Vietnamese" },
406 { "wen", "Sorbian" },
407 { "wo", "Wolof" },
408 { "xh", "Xhosa" },
409 { "yi", "Yiddish" },
410 { "yo", "Yoruba" },
411 { "zh", "Chinese" },
412 { "zu", "Zulu" }
413 };
414
415 /* Table from ISO 3166 country code to English name.
416 Keep in sync with the gl_locale_name_from_win32_LANGID function in
417 localename.c! */
418 static const struct table_entry country_table[] =
419 {
420 { "AE", "U.A.E." },
421 { "AF", "Afghanistan" },
422 { "AL", "Albania" },
423 { "AM", "Armenia" },
424 { "AN", "Netherlands Antilles" },
425 { "AR", "Argentina" },
426 { "AT", "Austria" },
427 { "AU", "Australia" },
428 { "AZ", "Azerbaijan" },
429 { "BA", "Bosnia and Herzegovina" },
430 { "BD", "Bangladesh" },
431 { "BE", "Belgium" },
432 { "BG", "Bulgaria" },
433 { "BH", "Bahrain" },
434 { "BN", "Brunei Darussalam" },
435 { "BO", "Bolivia" },
436 { "BR", "Brazil" },
437 { "BT", "Bhutan" },
438 { "BY", "Belarus" },
439 { "BZ", "Belize" },
440 { "CA", "Canada" },
441 { "CG", "Congo" },
442 { "CH", "Switzerland" },
443 { "CI", "Cote d'Ivoire" },
444 { "CL", "Chile" },
445 { "CM", "Cameroon" },
446 { "CN", "People's Republic of China" },
447 { "CO", "Colombia" },
448 { "CR", "Costa Rica" },
449 { "CS", "Serbia and Montenegro" },
450 { "CZ", "Czech Republic" },
451 { "DE", "Germany" },
452 { "DK", "Denmark" },
453 { "DO", "Dominican Republic" },
454 { "DZ", "Algeria" },
455 { "EC", "Ecuador" },
456 { "EE", "Estonia" },
457 { "EG", "Egypt" },
458 { "ER", "Eritrea" },
459 { "ES", "Spain" },
460 { "ET", "Ethiopia" },
461 { "FI", "Finland" },
462 { "FO", "Faroe Islands" },
463 { "FR", "France" },
464 { "GB", "United Kingdom" },
465 { "GD", "Caribbean" },
466 { "GE", "Georgia" },
467 { "GL", "Greenland" },
468 { "GR", "Greece" },
469 { "GT", "Guatemala" },
470 { "HK", "Hong Kong" },
471 { "HK", "Hong Kong S.A.R." },
472 { "HN", "Honduras" },
473 { "HR", "Croatia" },
474 { "HT", "Haiti" },
475 { "HU", "Hungary" },
476 { "ID", "Indonesia" },
477 { "IE", "Ireland" },
478 { "IL", "Israel" },
479 { "IN", "India" },
480 { "IQ", "Iraq" },
481 { "IR", "Iran" },
482 { "IS", "Iceland" },
483 { "IT", "Italy" },
484 { "JM", "Jamaica" },
485 { "JO", "Jordan" },
486 { "JP", "Japan" },
487 { "KE", "Kenya" },
488 { "KG", "Kyrgyzstan" },
489 { "KH", "Cambodia" },
490 { "KR", "South Korea" },
491 { "KW", "Kuwait" },
492 { "KZ", "Kazakhstan" },
493 { "LA", "Laos" },
494 { "LB", "Lebanon" },
495 { "LI", "Liechtenstein" },
496 { "LK", "Sri Lanka" },
497 { "LT", "Lithuania" },
498 { "LU", "Luxembourg" },
499 { "LV", "Latvia" },
500 { "LY", "Libya" },
501 { "MA", "Morocco" },
502 { "MC", "Principality of Monaco" },
503 { "MD", "Moldava" },
504 { "MD", "Moldova" },
505 { "ME", "Montenegro" },
506 { "MK", "Former Yugoslav Republic of Macedonia" },
507 { "ML", "Mali" },
508 { "MM", "Myanmar" },
509 { "MN", "Mongolia" },
510 { "MO", "Macau S.A.R." },
511 { "MT", "Malta" },
512 { "MV", "Maldives" },
513 { "MX", "Mexico" },
514 { "MY", "Malaysia" },
515 { "NG", "Nigeria" },
516 { "NI", "Nicaragua" },
517 { "NL", "Netherlands" },
518 { "NO", "Norway" },
519 { "NP", "Nepal" },
520 { "NZ", "New Zealand" },
521 { "OM", "Oman" },
522 { "PA", "Panama" },
523 { "PE", "Peru" },
524 { "PH", "Philippines" },
525 { "PK", "Islamic Republic of Pakistan" },
526 { "PL", "Poland" },
527 { "PR", "Puerto Rico" },
528 { "PT", "Portugal" },
529 { "PY", "Paraguay" },
530 { "QA", "Qatar" },
531 { "RE", "Reunion" },
532 { "RO", "Romania" },
533 { "RS", "Serbia" },
534 { "RU", "Russia" },
535 { "RW", "Rwanda" },
536 { "SA", "Saudi Arabia" },
537 { "SE", "Sweden" },
538 { "SG", "Singapore" },
539 { "SI", "Slovenia" },
540 { "SK", "Slovak" },
541 { "SN", "Senegal" },
542 { "SO", "Somalia" },
543 { "SR", "Suriname" },
544 { "SV", "El Salvador" },
545 { "SY", "Syria" },
546 { "TH", "Thailand" },
547 { "TJ", "Tajikistan" },
548 { "TM", "Turkmenistan" },
549 { "TN", "Tunisia" },
550 { "TR", "Turkey" },
551 { "TT", "Trinidad and Tobago" },
552 { "TW", "Taiwan" },
553 { "TZ", "Tanzania" },
554 { "UA", "Ukraine" },
555 { "US", "United States" },
556 { "UY", "Uruguay" },
557 { "VA", "Vatican" },
558 { "VE", "Venezuela" },
559 { "VN", "Viet Nam" },
560 { "YE", "Yemen" },
561 { "ZA", "South Africa" },
562 { "ZW", "Zimbabwe" }
563 };
564
565 /* Given a string STRING, find the set of indices i such that TABLE[i].code is
566 the given STRING. It is a range [lo,hi-1]. */
567 typedef struct { size_t lo; size_t hi; } range_t;
568 static void
search(const struct table_entry * table,size_t table_size,const char * string,range_t * result)569 search (const struct table_entry *table, size_t table_size, const char *string,
570 range_t *result)
571 {
572 /* The table is sorted. Perform a binary search. */
573 size_t hi = table_size;
574 size_t lo = 0;
575 while (lo < hi)
576 {
577 /* Invariant:
578 for i < lo, strcmp (table[i].code, string) < 0,
579 for i >= hi, strcmp (table[i].code, string) > 0. */
580 size_t mid = (hi + lo) >> 1; /* >= lo, < hi */
581 int cmp = strcmp (table[mid].code, string);
582 if (cmp < 0)
583 lo = mid + 1;
584 else if (cmp > 0)
585 hi = mid;
586 else
587 {
588 /* Found an i with
589 strcmp (language_table[i].code, string) == 0.
590 Find the entire interval of such i. */
591 {
592 size_t i;
593
594 for (i = mid; i > lo; )
595 {
596 i--;
597 if (strcmp (table[i].code, string) < 0)
598 {
599 lo = i + 1;
600 break;
601 }
602 }
603 }
604 {
605 size_t i;
606
607 for (i = mid; i < hi; i++)
608 {
609 if (strcmp (table[i].code, string) > 0)
610 {
611 hi = i;
612 break;
613 }
614 }
615 }
616 /* The set of i with
617 strcmp (language_table[i].code, string) == 0
618 is the interval [lo, hi-1]. */
619 break;
620 }
621 }
622 result->lo = lo;
623 result->hi = hi;
624 }
625
626 /* Like setlocale, but accept also locale names in the form ll or ll_CC,
627 where ll is an ISO 639 language code and CC is an ISO 3166 country code. */
628 static char *
setlocale_unixlike(int category,const char * locale)629 setlocale_unixlike (int category, const char *locale)
630 {
631 char *result;
632 char llCC_buf[64];
633 char ll_buf[64];
634 char CC_buf[64];
635
636 /* The native Windows implementation of setlocale understands the special
637 locale name "C", but not "POSIX". Therefore map "POSIX" to "C". */
638 #if defined _WIN32 && !defined __CYGWIN__
639 if (locale != NULL && strcmp (locale, "POSIX") == 0)
640 locale = "C";
641 #endif
642
643 /* First, try setlocale with the original argument unchanged. */
644 result = setlocale (category, locale);
645 if (result != NULL)
646 return result;
647
648 /* Otherwise, assume the argument is in the form
649 language[_territory][.codeset][@modifier]
650 and try to map it using the tables. */
651 if (strlen (locale) < sizeof (llCC_buf))
652 {
653 /* Second try: Remove the codeset part. */
654 {
655 const char *p = locale;
656 char *q = llCC_buf;
657
658 /* Copy the part before the dot. */
659 for (; *p != '\0' && *p != '.'; p++, q++)
660 *q = *p;
661 if (*p == '.')
662 /* Skip the part up to the '@', if any. */
663 for (; *p != '\0' && *p != '@'; p++)
664 ;
665 /* Copy the part starting with '@', if any. */
666 for (; *p != '\0'; p++, q++)
667 *q = *p;
668 *q = '\0';
669 }
670 /* llCC_buf now contains
671 language[_territory][@modifier]
672 */
673 if (strcmp (llCC_buf, locale) != 0)
674 {
675 result = setlocale (category, llCC_buf);
676 if (result != NULL)
677 return result;
678 }
679 /* Look it up in language_table. */
680 {
681 range_t range;
682 size_t i;
683
684 search (language_table,
685 sizeof (language_table) / sizeof (language_table[0]),
686 llCC_buf,
687 &range);
688
689 for (i = range.lo; i < range.hi; i++)
690 {
691 /* Try the replacement in language_table[i]. */
692 result = setlocale (category, language_table[i].english);
693 if (result != NULL)
694 return result;
695 }
696 }
697 /* Split language[_territory][@modifier]
698 into ll_buf = language[@modifier]
699 and CC_buf = territory
700 */
701 {
702 const char *underscore = strchr (llCC_buf, '_');
703 if (underscore != NULL)
704 {
705 const char *territory_start = underscore + 1;
706 const char *territory_end = strchr (territory_start, '@');
707 if (territory_end == NULL)
708 territory_end = territory_start + strlen (territory_start);
709
710 memcpy (ll_buf, llCC_buf, underscore - llCC_buf);
711 strcpy (ll_buf + (underscore - llCC_buf), territory_end);
712
713 memcpy (CC_buf, territory_start, territory_end - territory_start);
714 CC_buf[territory_end - territory_start] = '\0';
715
716 {
717 /* Look up ll_buf in language_table
718 and CC_buf in country_table. */
719 range_t language_range;
720
721 search (language_table,
722 sizeof (language_table) / sizeof (language_table[0]),
723 ll_buf,
724 &language_range);
725 if (language_range.lo < language_range.hi)
726 {
727 range_t country_range;
728
729 search (country_table,
730 sizeof (country_table) / sizeof (country_table[0]),
731 CC_buf,
732 &country_range);
733 if (country_range.lo < country_range.hi)
734 {
735 size_t i;
736 size_t j;
737
738 for (i = language_range.lo; i < language_range.hi; i++)
739 for (j = country_range.lo; j < country_range.hi; j++)
740 {
741 /* Concatenate the replacements. */
742 const char *part1 = language_table[i].english;
743 size_t part1_len = strlen (part1);
744 const char *part2 = country_table[j].english;
745 size_t part2_len = strlen (part2) + 1;
746 char buf[64+64];
747
748 if (!(part1_len + 1 + part2_len <= sizeof (buf)))
749 abort ();
750 memcpy (buf, part1, part1_len);
751 buf[part1_len] = '_';
752 memcpy (buf + part1_len + 1, part2, part2_len);
753
754 /* Try the concatenated replacements. */
755 result = setlocale (category, buf);
756 if (result != NULL)
757 return result;
758 }
759 }
760
761 /* Try omitting the country entirely. This may set a locale
762 corresponding to the wrong country, but is better than
763 failing entirely. */
764 {
765 size_t i;
766
767 for (i = language_range.lo; i < language_range.hi; i++)
768 {
769 /* Try only the language replacement. */
770 result =
771 setlocale (category, language_table[i].english);
772 if (result != NULL)
773 return result;
774 }
775 }
776 }
777 }
778 }
779 }
780 }
781
782 /* Failed. */
783 return NULL;
784 }
785
786 # else
787 # define setlocale_unixlike setlocale
788 # endif
789
790 # if LC_MESSAGES == 1729
791
792 /* The system does not store an LC_MESSAGES locale category. Do it here. */
793 static char lc_messages_name[64] = "C";
794
795 /* Like setlocale, but support also LC_MESSAGES. */
796 static char *
setlocale_single(int category,const char * locale)797 setlocale_single (int category, const char *locale)
798 {
799 if (category == LC_MESSAGES)
800 {
801 if (locale != NULL)
802 {
803 lc_messages_name[sizeof (lc_messages_name) - 1] = '\0';
804 strncpy (lc_messages_name, locale, sizeof (lc_messages_name) - 1);
805 }
806 return lc_messages_name;
807 }
808 else
809 return setlocale_unixlike (category, locale);
810 }
811
812 # else
813 # define setlocale_single setlocale_unixlike
814 # endif
815
816 char *
rpl_setlocale(int category,const char * locale)817 rpl_setlocale (int category, const char *locale)
818 {
819 if (locale != NULL && locale[0] == '\0')
820 {
821 /* A request to the set the current locale to the default locale. */
822 if (category == LC_ALL)
823 {
824 /* Set LC_CTYPE first. Then the other categories. */
825 static int const categories[] =
826 {
827 LC_NUMERIC,
828 LC_TIME,
829 LC_COLLATE,
830 LC_MONETARY,
831 LC_MESSAGES
832 };
833 char *saved_locale;
834 const char *base_name;
835 unsigned int i;
836
837 /* Back up the old locale, in case one of the steps fails. */
838 saved_locale = setlocale (LC_ALL, NULL);
839 if (saved_locale == NULL)
840 return NULL;
841 saved_locale = strdup (saved_locale);
842 if (saved_locale == NULL)
843 return NULL;
844
845 /* Set LC_CTYPE category. Set all other categories (except possibly
846 LC_MESSAGES) to the same value in the same call; this is likely to
847 save calls. */
848 base_name =
849 gl_locale_name_environ (LC_CTYPE, category_to_name (LC_CTYPE));
850 if (base_name == NULL)
851 base_name = gl_locale_name_default ();
852
853 if (setlocale_unixlike (LC_ALL, base_name) == NULL)
854 goto fail;
855 # if defined _WIN32 && ! defined __CYGWIN__
856 /* On native Windows, setlocale(LC_ALL,...) may succeed but set the
857 LC_CTYPE category to an invalid value ("C") when it does not
858 support the specified encoding. Report a failure instead. */
859 if (strchr (base_name, '.') != NULL
860 && strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
861 goto fail;
862 # endif
863
864 for (i = 0; i < sizeof (categories) / sizeof (categories[0]); i++)
865 {
866 int cat = categories[i];
867 const char *name;
868
869 name = gl_locale_name_environ (cat, category_to_name (cat));
870 if (name == NULL)
871 name = gl_locale_name_default ();
872
873 /* If name is the same as base_name, it has already been set
874 through the setlocale call before the loop. */
875 if (strcmp (name, base_name) != 0
876 # if LC_MESSAGES == 1729
877 || cat == LC_MESSAGES
878 # endif
879 )
880 if (setlocale_single (cat, name) == NULL)
881 goto fail;
882 }
883
884 /* All steps were successful. */
885 free (saved_locale);
886 return setlocale (LC_ALL, NULL);
887
888 fail:
889 if (saved_locale[0] != '\0') /* don't risk an endless recursion */
890 setlocale (LC_ALL, saved_locale);
891 free (saved_locale);
892 return NULL;
893 }
894 else
895 {
896 const char *name =
897 gl_locale_name_environ (category, category_to_name (category));
898 if (name == NULL)
899 name = gl_locale_name_default ();
900
901 return setlocale_single (category, name);
902 }
903 }
904 else
905 {
906 # if defined _WIN32 && ! defined __CYGWIN__
907 if (category == LC_ALL && locale != NULL && strchr (locale, '.') != NULL)
908 {
909 char *saved_locale;
910
911 /* Back up the old locale. */
912 saved_locale = setlocale (LC_ALL, NULL);
913 if (saved_locale == NULL)
914 return NULL;
915 saved_locale = strdup (saved_locale);
916 if (saved_locale == NULL)
917 return NULL;
918
919 if (setlocale_unixlike (LC_ALL, locale) == NULL)
920 {
921 free (saved_locale);
922 return NULL;
923 }
924
925 /* On native Windows, setlocale(LC_ALL,...) may succeed but set the
926 LC_CTYPE category to an invalid value ("C") when it does not
927 support the specified encoding. Report a failure instead. */
928 if (strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
929 {
930 if (saved_locale[0] != '\0') /* don't risk an endless recursion */
931 setlocale (LC_ALL, saved_locale);
932 free (saved_locale);
933 return NULL;
934 }
935
936 /* It was really successful. */
937 free (saved_locale);
938 return setlocale (LC_ALL, NULL);
939 }
940 else
941 # endif
942 return setlocale_single (category, locale);
943 }
944 }
945
946 #endif
947