Commit | Line | Data |
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98994639 HS |
1 | /* locale.c |
2 | * | |
1129b882 NC |
3 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
4 | * 2002, 2003, 2005, 2006, 2007, 2008 by Larry Wall and others | |
98994639 HS |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
4ac71550 | 12 | * A Elbereth Gilthoniel, |
cdad3b53 | 13 | * silivren penna míriel |
4ac71550 | 14 | * o menel aglar elenath! |
cdad3b53 | 15 | * Na-chaered palan-díriel |
4ac71550 TC |
16 | * o galadhremmin ennorath, |
17 | * Fanuilos, le linnathon | |
18 | * nef aear, si nef aearon! | |
19 | * | |
20 | * [p.238 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
98994639 HS |
21 | */ |
22 | ||
166f8a29 DM |
23 | /* utility functions for handling locale-specific stuff like what |
24 | * character represents the decimal point. | |
25 | */ | |
26 | ||
98994639 HS |
27 | #include "EXTERN.h" |
28 | #define PERL_IN_LOCALE_C | |
29 | #include "perl.h" | |
30 | ||
31 | #ifdef I_LOCALE | |
32 | # include <locale.h> | |
33 | #endif | |
34 | ||
b310b053 JH |
35 | #ifdef I_LANGINFO |
36 | # include <langinfo.h> | |
37 | #endif | |
38 | ||
a4af207c JH |
39 | #include "reentr.h" |
40 | ||
27da23d5 | 41 | #if defined(USE_LOCALE_NUMERIC) || defined(USE_LOCALE_COLLATE) |
98994639 HS |
42 | /* |
43 | * Standardize the locale name from a string returned by 'setlocale'. | |
44 | * | |
45 | * The standard return value of setlocale() is either | |
46 | * (1) "xx_YY" if the first argument of setlocale() is not LC_ALL | |
47 | * (2) "xa_YY xb_YY ..." if the first argument of setlocale() is LC_ALL | |
48 | * (the space-separated values represent the various sublocales, | |
486ec47a | 49 | * in some unspecified order) |
98994639 HS |
50 | * |
51 | * In some platforms it has a form like "LC_SOMETHING=Lang_Country.866\n", | |
52 | * which is harmful for further use of the string in setlocale(). | |
53 | * | |
54 | */ | |
55 | STATIC char * | |
56 | S_stdize_locale(pTHX_ char *locs) | |
57 | { | |
7452cf6a | 58 | const char * const s = strchr(locs, '='); |
98994639 HS |
59 | bool okay = TRUE; |
60 | ||
7918f24d NC |
61 | PERL_ARGS_ASSERT_STDIZE_LOCALE; |
62 | ||
8772537c AL |
63 | if (s) { |
64 | const char * const t = strchr(s, '.'); | |
98994639 | 65 | okay = FALSE; |
8772537c AL |
66 | if (t) { |
67 | const char * const u = strchr(t, '\n'); | |
68 | if (u && (u[1] == 0)) { | |
69 | const STRLEN len = u - s; | |
70 | Move(s + 1, locs, len, char); | |
71 | locs[len] = 0; | |
72 | okay = TRUE; | |
98994639 HS |
73 | } |
74 | } | |
75 | } | |
76 | ||
77 | if (!okay) | |
78 | Perl_croak(aTHX_ "Can't fix broken locale name \"%s\"", locs); | |
79 | ||
80 | return locs; | |
81 | } | |
27da23d5 | 82 | #endif |
98994639 HS |
83 | |
84 | void | |
85 | Perl_set_numeric_radix(pTHX) | |
86 | { | |
87 | #ifdef USE_LOCALE_NUMERIC | |
97aff369 | 88 | dVAR; |
98994639 | 89 | # ifdef HAS_LOCALECONV |
7452cf6a | 90 | const struct lconv* const lc = localeconv(); |
98994639 | 91 | |
98994639 HS |
92 | if (lc && lc->decimal_point) { |
93 | if (lc->decimal_point[0] == '.' && lc->decimal_point[1] == 0) { | |
94 | SvREFCNT_dec(PL_numeric_radix_sv); | |
a0714e2c | 95 | PL_numeric_radix_sv = NULL; |
98994639 HS |
96 | } |
97 | else { | |
98 | if (PL_numeric_radix_sv) | |
99 | sv_setpv(PL_numeric_radix_sv, lc->decimal_point); | |
100 | else | |
101 | PL_numeric_radix_sv = newSVpv(lc->decimal_point, 0); | |
102 | } | |
103 | } | |
104 | else | |
a0714e2c | 105 | PL_numeric_radix_sv = NULL; |
98994639 HS |
106 | # endif /* HAS_LOCALECONV */ |
107 | #endif /* USE_LOCALE_NUMERIC */ | |
108 | } | |
109 | ||
110 | /* | |
111 | * Set up for a new numeric locale. | |
112 | */ | |
113 | void | |
8772537c | 114 | Perl_new_numeric(pTHX_ const char *newnum) |
98994639 HS |
115 | { |
116 | #ifdef USE_LOCALE_NUMERIC | |
97aff369 | 117 | dVAR; |
98994639 HS |
118 | |
119 | if (! newnum) { | |
43c5f42d NC |
120 | Safefree(PL_numeric_name); |
121 | PL_numeric_name = NULL; | |
98994639 HS |
122 | PL_numeric_standard = TRUE; |
123 | PL_numeric_local = TRUE; | |
124 | return; | |
125 | } | |
126 | ||
127 | if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) { | |
128 | Safefree(PL_numeric_name); | |
129 | PL_numeric_name = stdize_locale(savepv(newnum)); | |
770526c1 NC |
130 | PL_numeric_standard = ((*newnum == 'C' && newnum[1] == '\0') |
131 | || strEQ(newnum, "POSIX")); | |
98994639 HS |
132 | PL_numeric_local = TRUE; |
133 | set_numeric_radix(); | |
134 | } | |
135 | ||
136 | #endif /* USE_LOCALE_NUMERIC */ | |
137 | } | |
138 | ||
139 | void | |
140 | Perl_set_numeric_standard(pTHX) | |
141 | { | |
142 | #ifdef USE_LOCALE_NUMERIC | |
97aff369 | 143 | dVAR; |
98994639 HS |
144 | |
145 | if (! PL_numeric_standard) { | |
146 | setlocale(LC_NUMERIC, "C"); | |
147 | PL_numeric_standard = TRUE; | |
148 | PL_numeric_local = FALSE; | |
149 | set_numeric_radix(); | |
150 | } | |
151 | ||
152 | #endif /* USE_LOCALE_NUMERIC */ | |
153 | } | |
154 | ||
155 | void | |
156 | Perl_set_numeric_local(pTHX) | |
157 | { | |
158 | #ifdef USE_LOCALE_NUMERIC | |
97aff369 | 159 | dVAR; |
98994639 HS |
160 | |
161 | if (! PL_numeric_local) { | |
162 | setlocale(LC_NUMERIC, PL_numeric_name); | |
163 | PL_numeric_standard = FALSE; | |
164 | PL_numeric_local = TRUE; | |
165 | set_numeric_radix(); | |
166 | } | |
167 | ||
168 | #endif /* USE_LOCALE_NUMERIC */ | |
169 | } | |
170 | ||
171 | /* | |
172 | * Set up for a new ctype locale. | |
173 | */ | |
174 | void | |
8772537c | 175 | Perl_new_ctype(pTHX_ const char *newctype) |
98994639 HS |
176 | { |
177 | #ifdef USE_LOCALE_CTYPE | |
27da23d5 | 178 | dVAR; |
98994639 HS |
179 | int i; |
180 | ||
7918f24d NC |
181 | PERL_ARGS_ASSERT_NEW_CTYPE; |
182 | ||
98994639 HS |
183 | for (i = 0; i < 256; i++) { |
184 | if (isUPPER_LC(i)) | |
185 | PL_fold_locale[i] = toLOWER_LC(i); | |
186 | else if (isLOWER_LC(i)) | |
187 | PL_fold_locale[i] = toUPPER_LC(i); | |
188 | else | |
189 | PL_fold_locale[i] = i; | |
190 | } | |
191 | ||
192 | #endif /* USE_LOCALE_CTYPE */ | |
7918f24d | 193 | PERL_ARGS_ASSERT_NEW_CTYPE; |
8772537c | 194 | PERL_UNUSED_ARG(newctype); |
96a5add6 | 195 | PERL_UNUSED_CONTEXT; |
98994639 HS |
196 | } |
197 | ||
198 | /* | |
199 | * Set up for a new collation locale. | |
200 | */ | |
201 | void | |
8772537c | 202 | Perl_new_collate(pTHX_ const char *newcoll) |
98994639 HS |
203 | { |
204 | #ifdef USE_LOCALE_COLLATE | |
97aff369 | 205 | dVAR; |
98994639 HS |
206 | |
207 | if (! newcoll) { | |
208 | if (PL_collation_name) { | |
209 | ++PL_collation_ix; | |
210 | Safefree(PL_collation_name); | |
211 | PL_collation_name = NULL; | |
212 | } | |
213 | PL_collation_standard = TRUE; | |
214 | PL_collxfrm_base = 0; | |
215 | PL_collxfrm_mult = 2; | |
216 | return; | |
217 | } | |
218 | ||
219 | if (! PL_collation_name || strNE(PL_collation_name, newcoll)) { | |
220 | ++PL_collation_ix; | |
221 | Safefree(PL_collation_name); | |
222 | PL_collation_name = stdize_locale(savepv(newcoll)); | |
770526c1 NC |
223 | PL_collation_standard = ((*newcoll == 'C' && newcoll[1] == '\0') |
224 | || strEQ(newcoll, "POSIX")); | |
98994639 HS |
225 | |
226 | { | |
227 | /* 2: at most so many chars ('a', 'b'). */ | |
228 | /* 50: surely no system expands a char more. */ | |
229 | #define XFRMBUFSIZE (2 * 50) | |
230 | char xbuf[XFRMBUFSIZE]; | |
8772537c AL |
231 | const Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); |
232 | const Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); | |
233 | const SSize_t mult = fb - fa; | |
e0601d3c | 234 | if (mult < 1 && !(fa == 0 && fb == 0)) |
ad49ad39 NC |
235 | Perl_croak(aTHX_ "panic: strxfrm() gets absurd - a => %"UVuf", ab => %"UVuf, |
236 | (UV) fa, (UV) fb); | |
eb160463 | 237 | PL_collxfrm_base = (fa > (Size_t)mult) ? (fa - mult) : 0; |
98994639 HS |
238 | PL_collxfrm_mult = mult; |
239 | } | |
240 | } | |
241 | ||
242 | #endif /* USE_LOCALE_COLLATE */ | |
243 | } | |
244 | ||
245 | /* | |
246 | * Initialize locale awareness. | |
247 | */ | |
248 | int | |
249 | Perl_init_i18nl10n(pTHX_ int printwarn) | |
250 | { | |
251 | int ok = 1; | |
252 | /* returns | |
253 | * 1 = set ok or not applicable, | |
254 | * 0 = fallback to C locale, | |
255 | * -1 = fallback to C locale failed | |
256 | */ | |
257 | ||
258 | #if defined(USE_LOCALE) | |
97aff369 | 259 | dVAR; |
98994639 HS |
260 | |
261 | #ifdef USE_LOCALE_CTYPE | |
262 | char *curctype = NULL; | |
263 | #endif /* USE_LOCALE_CTYPE */ | |
264 | #ifdef USE_LOCALE_COLLATE | |
265 | char *curcoll = NULL; | |
266 | #endif /* USE_LOCALE_COLLATE */ | |
267 | #ifdef USE_LOCALE_NUMERIC | |
268 | char *curnum = NULL; | |
269 | #endif /* USE_LOCALE_NUMERIC */ | |
270 | #ifdef __GLIBC__ | |
7452cf6a | 271 | char * const language = PerlEnv_getenv("LANGUAGE"); |
98994639 | 272 | #endif |
7452cf6a AL |
273 | char * const lc_all = PerlEnv_getenv("LC_ALL"); |
274 | char * const lang = PerlEnv_getenv("LANG"); | |
98994639 HS |
275 | bool setlocale_failure = FALSE; |
276 | ||
277 | #ifdef LOCALE_ENVIRON_REQUIRED | |
278 | ||
279 | /* | |
280 | * Ultrix setlocale(..., "") fails if there are no environment | |
281 | * variables from which to get a locale name. | |
282 | */ | |
283 | ||
284 | bool done = FALSE; | |
285 | ||
286 | #ifdef LC_ALL | |
287 | if (lang) { | |
288 | if (setlocale(LC_ALL, "")) | |
289 | done = TRUE; | |
290 | else | |
291 | setlocale_failure = TRUE; | |
292 | } | |
293 | if (!setlocale_failure) { | |
294 | #ifdef USE_LOCALE_CTYPE | |
56279a21 | 295 | Safefree(curctype); |
98994639 HS |
296 | if (! (curctype = |
297 | setlocale(LC_CTYPE, | |
298 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) | |
bd61b366 | 299 | ? "" : NULL))) |
98994639 HS |
300 | setlocale_failure = TRUE; |
301 | else | |
302 | curctype = savepv(curctype); | |
303 | #endif /* USE_LOCALE_CTYPE */ | |
304 | #ifdef USE_LOCALE_COLLATE | |
56279a21 | 305 | Safefree(curcoll); |
98994639 HS |
306 | if (! (curcoll = |
307 | setlocale(LC_COLLATE, | |
308 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) | |
bd61b366 | 309 | ? "" : NULL))) |
98994639 HS |
310 | setlocale_failure = TRUE; |
311 | else | |
312 | curcoll = savepv(curcoll); | |
313 | #endif /* USE_LOCALE_COLLATE */ | |
314 | #ifdef USE_LOCALE_NUMERIC | |
56279a21 | 315 | Safefree(curnum); |
98994639 HS |
316 | if (! (curnum = |
317 | setlocale(LC_NUMERIC, | |
318 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) | |
bd61b366 | 319 | ? "" : NULL))) |
98994639 HS |
320 | setlocale_failure = TRUE; |
321 | else | |
322 | curnum = savepv(curnum); | |
323 | #endif /* USE_LOCALE_NUMERIC */ | |
324 | } | |
325 | ||
326 | #endif /* LC_ALL */ | |
327 | ||
328 | #endif /* !LOCALE_ENVIRON_REQUIRED */ | |
329 | ||
330 | #ifdef LC_ALL | |
331 | if (! setlocale(LC_ALL, "")) | |
332 | setlocale_failure = TRUE; | |
333 | #endif /* LC_ALL */ | |
334 | ||
335 | if (!setlocale_failure) { | |
336 | #ifdef USE_LOCALE_CTYPE | |
6cb43dbf | 337 | Safefree(curctype); |
98994639 HS |
338 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
339 | setlocale_failure = TRUE; | |
340 | else | |
341 | curctype = savepv(curctype); | |
342 | #endif /* USE_LOCALE_CTYPE */ | |
343 | #ifdef USE_LOCALE_COLLATE | |
6cb43dbf | 344 | Safefree(curcoll); |
98994639 HS |
345 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
346 | setlocale_failure = TRUE; | |
347 | else | |
348 | curcoll = savepv(curcoll); | |
349 | #endif /* USE_LOCALE_COLLATE */ | |
350 | #ifdef USE_LOCALE_NUMERIC | |
6cb43dbf | 351 | Safefree(curnum); |
98994639 HS |
352 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
353 | setlocale_failure = TRUE; | |
354 | else | |
355 | curnum = savepv(curnum); | |
356 | #endif /* USE_LOCALE_NUMERIC */ | |
357 | } | |
358 | ||
359 | if (setlocale_failure) { | |
360 | char *p; | |
0bd48802 | 361 | const bool locwarn = (printwarn > 1 || |
98994639 HS |
362 | (printwarn && |
363 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p)))); | |
364 | ||
365 | if (locwarn) { | |
366 | #ifdef LC_ALL | |
367 | ||
368 | PerlIO_printf(Perl_error_log, | |
369 | "perl: warning: Setting locale failed.\n"); | |
370 | ||
371 | #else /* !LC_ALL */ | |
372 | ||
373 | PerlIO_printf(Perl_error_log, | |
374 | "perl: warning: Setting locale failed for the categories:\n\t"); | |
375 | #ifdef USE_LOCALE_CTYPE | |
376 | if (! curctype) | |
377 | PerlIO_printf(Perl_error_log, "LC_CTYPE "); | |
378 | #endif /* USE_LOCALE_CTYPE */ | |
379 | #ifdef USE_LOCALE_COLLATE | |
380 | if (! curcoll) | |
381 | PerlIO_printf(Perl_error_log, "LC_COLLATE "); | |
382 | #endif /* USE_LOCALE_COLLATE */ | |
383 | #ifdef USE_LOCALE_NUMERIC | |
384 | if (! curnum) | |
385 | PerlIO_printf(Perl_error_log, "LC_NUMERIC "); | |
386 | #endif /* USE_LOCALE_NUMERIC */ | |
387 | PerlIO_printf(Perl_error_log, "\n"); | |
388 | ||
389 | #endif /* LC_ALL */ | |
390 | ||
391 | PerlIO_printf(Perl_error_log, | |
392 | "perl: warning: Please check that your locale settings:\n"); | |
393 | ||
394 | #ifdef __GLIBC__ | |
395 | PerlIO_printf(Perl_error_log, | |
396 | "\tLANGUAGE = %c%s%c,\n", | |
397 | language ? '"' : '(', | |
398 | language ? language : "unset", | |
399 | language ? '"' : ')'); | |
400 | #endif | |
401 | ||
402 | PerlIO_printf(Perl_error_log, | |
403 | "\tLC_ALL = %c%s%c,\n", | |
404 | lc_all ? '"' : '(', | |
405 | lc_all ? lc_all : "unset", | |
406 | lc_all ? '"' : ')'); | |
407 | ||
408 | #if defined(USE_ENVIRON_ARRAY) | |
409 | { | |
410 | char **e; | |
411 | for (e = environ; *e; e++) { | |
412 | if (strnEQ(*e, "LC_", 3) | |
413 | && strnNE(*e, "LC_ALL=", 7) | |
414 | && (p = strchr(*e, '='))) | |
415 | PerlIO_printf(Perl_error_log, "\t%.*s = \"%s\",\n", | |
416 | (int)(p - *e), *e, p + 1); | |
417 | } | |
418 | } | |
419 | #else | |
420 | PerlIO_printf(Perl_error_log, | |
421 | "\t(possibly more locale environment variables)\n"); | |
422 | #endif | |
423 | ||
424 | PerlIO_printf(Perl_error_log, | |
425 | "\tLANG = %c%s%c\n", | |
426 | lang ? '"' : '(', | |
427 | lang ? lang : "unset", | |
428 | lang ? '"' : ')'); | |
429 | ||
430 | PerlIO_printf(Perl_error_log, | |
431 | " are supported and installed on your system.\n"); | |
432 | } | |
433 | ||
434 | #ifdef LC_ALL | |
435 | ||
436 | if (setlocale(LC_ALL, "C")) { | |
437 | if (locwarn) | |
438 | PerlIO_printf(Perl_error_log, | |
439 | "perl: warning: Falling back to the standard locale (\"C\").\n"); | |
440 | ok = 0; | |
441 | } | |
442 | else { | |
443 | if (locwarn) | |
444 | PerlIO_printf(Perl_error_log, | |
445 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); | |
446 | ok = -1; | |
447 | } | |
448 | ||
449 | #else /* ! LC_ALL */ | |
450 | ||
451 | if (0 | |
452 | #ifdef USE_LOCALE_CTYPE | |
453 | || !(curctype || setlocale(LC_CTYPE, "C")) | |
454 | #endif /* USE_LOCALE_CTYPE */ | |
455 | #ifdef USE_LOCALE_COLLATE | |
456 | || !(curcoll || setlocale(LC_COLLATE, "C")) | |
457 | #endif /* USE_LOCALE_COLLATE */ | |
458 | #ifdef USE_LOCALE_NUMERIC | |
459 | || !(curnum || setlocale(LC_NUMERIC, "C")) | |
460 | #endif /* USE_LOCALE_NUMERIC */ | |
461 | ) | |
462 | { | |
463 | if (locwarn) | |
464 | PerlIO_printf(Perl_error_log, | |
465 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); | |
466 | ok = -1; | |
467 | } | |
468 | ||
469 | #endif /* ! LC_ALL */ | |
470 | ||
471 | #ifdef USE_LOCALE_CTYPE | |
56279a21 | 472 | Safefree(curctype); |
bd61b366 | 473 | curctype = savepv(setlocale(LC_CTYPE, NULL)); |
98994639 HS |
474 | #endif /* USE_LOCALE_CTYPE */ |
475 | #ifdef USE_LOCALE_COLLATE | |
56279a21 | 476 | Safefree(curcoll); |
bd61b366 | 477 | curcoll = savepv(setlocale(LC_COLLATE, NULL)); |
98994639 HS |
478 | #endif /* USE_LOCALE_COLLATE */ |
479 | #ifdef USE_LOCALE_NUMERIC | |
56279a21 | 480 | Safefree(curnum); |
bd61b366 | 481 | curnum = savepv(setlocale(LC_NUMERIC, NULL)); |
98994639 HS |
482 | #endif /* USE_LOCALE_NUMERIC */ |
483 | } | |
484 | else { | |
485 | ||
486 | #ifdef USE_LOCALE_CTYPE | |
487 | new_ctype(curctype); | |
488 | #endif /* USE_LOCALE_CTYPE */ | |
489 | ||
490 | #ifdef USE_LOCALE_COLLATE | |
491 | new_collate(curcoll); | |
492 | #endif /* USE_LOCALE_COLLATE */ | |
493 | ||
494 | #ifdef USE_LOCALE_NUMERIC | |
495 | new_numeric(curnum); | |
496 | #endif /* USE_LOCALE_NUMERIC */ | |
b310b053 | 497 | |
98994639 HS |
498 | } |
499 | ||
500 | #endif /* USE_LOCALE */ | |
501 | ||
ec71e770 | 502 | #ifdef USE_PERLIO |
b310b053 | 503 | { |
fde18df1 | 504 | /* Set PL_utf8locale to TRUE if using PerlIO _and_ |
ec71e770 | 505 | any of the following are true: |
085a54d9 | 506 | - nl_langinfo(CODESET) contains /^utf-?8/i |
61de9fb5 | 507 | - $ENV{LC_ALL} contains /^utf-?8/i |
085a54d9 | 508 | - $ENV{LC_CTYPE} contains /^utf-?8/i |
61de9fb5 JH |
509 | - $ENV{LANG} contains /^utf-?8/i |
510 | The LC_ALL, LC_CTYPE, LANG obey the usual override | |
511 | hierarchy of locale environment variables. (LANGUAGE | |
512 | affects only LC_MESSAGES only under glibc.) (If present, | |
513 | it overrides LC_MESSAGES for GNU gettext, and it also | |
514 | can have more than one locale, separated by spaces, | |
515 | in case you need to know.) | |
8aa8f774 | 516 | If PL_utf8locale and PL_unicode (set by -C or by $ENV{PERL_UNICODE}) |
a05d7ebb | 517 | are true, perl.c:S_parse_body() will turn on the PerlIO :utf8 layer |
fde18df1 | 518 | on STDIN, STDOUT, STDERR, _and_ the default open discipline. |
085a54d9 | 519 | */ |
fde18df1 | 520 | bool utf8locale = FALSE; |
b310b053 JH |
521 | char *codeset = NULL; |
522 | #if defined(HAS_NL_LANGINFO) && defined(CODESET) | |
523 | codeset = nl_langinfo(CODESET); | |
524 | #endif | |
61de9fb5 | 525 | if (codeset) |
e6226b18 KW |
526 | utf8locale = (foldEQ(codeset, STR_WITH_LEN("UTF-8")) |
527 | || foldEQ(codeset, STR_WITH_LEN("UTF8") )); | |
077a72a9 | 528 | #if defined(USE_LOCALE) |
61de9fb5 JH |
529 | else { /* nl_langinfo(CODESET) is supposed to correctly |
530 | * interpret the locale environment variables, | |
531 | * but just in case it fails, let's do this manually. */ | |
532 | if (lang) | |
e6226b18 KW |
533 | utf8locale = (foldEQ(lang, STR_WITH_LEN("UTF-8")) |
534 | || foldEQ(lang, STR_WITH_LEN("UTF8") )); | |
b310b053 | 535 | #ifdef USE_LOCALE_CTYPE |
61de9fb5 | 536 | if (curctype) |
e6226b18 KW |
537 | utf8locale = (foldEQ(curctype, STR_WITH_LEN("UTF-8")) |
538 | || foldEQ(curctype, STR_WITH_LEN("UTF8") )); | |
b310b053 | 539 | #endif |
61de9fb5 | 540 | if (lc_all) |
e6226b18 KW |
541 | utf8locale = (foldEQ(lc_all, STR_WITH_LEN("UTF-8")) |
542 | || foldEQ(lc_all, STR_WITH_LEN("UTF8") )); | |
61de9fb5 | 543 | } |
fde18df1 JH |
544 | #endif /* USE_LOCALE */ |
545 | if (utf8locale) | |
546 | PL_utf8locale = TRUE; | |
547 | } | |
a05d7ebb | 548 | /* Set PL_unicode to $ENV{PERL_UNICODE} if using PerlIO. |
fde18df1 JH |
549 | This is an alternative to using the -C command line switch |
550 | (the -C if present will override this). */ | |
551 | { | |
dd374669 | 552 | const char *p = PerlEnv_getenv("PERL_UNICODE"); |
a05d7ebb | 553 | PL_unicode = p ? parse_unicode_opts(&p) : 0; |
5a22a2bb NC |
554 | if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG) |
555 | PL_utf8cache = -1; | |
b310b053 | 556 | } |
ec71e770 | 557 | #endif |
b310b053 | 558 | |
98994639 | 559 | #ifdef USE_LOCALE_CTYPE |
43c5f42d | 560 | Safefree(curctype); |
98994639 HS |
561 | #endif /* USE_LOCALE_CTYPE */ |
562 | #ifdef USE_LOCALE_COLLATE | |
43c5f42d | 563 | Safefree(curcoll); |
98994639 HS |
564 | #endif /* USE_LOCALE_COLLATE */ |
565 | #ifdef USE_LOCALE_NUMERIC | |
43c5f42d | 566 | Safefree(curnum); |
98994639 HS |
567 | #endif /* USE_LOCALE_NUMERIC */ |
568 | return ok; | |
569 | } | |
570 | ||
98994639 HS |
571 | #ifdef USE_LOCALE_COLLATE |
572 | ||
573 | /* | |
574 | * mem_collxfrm() is a bit like strxfrm() but with two important | |
575 | * differences. First, it handles embedded NULs. Second, it allocates | |
576 | * a bit more memory than needed for the transformed data itself. | |
577 | * The real transformed data begins at offset sizeof(collationix). | |
578 | * Please see sv_collxfrm() to see how this is used. | |
579 | */ | |
166f8a29 | 580 | |
98994639 HS |
581 | char * |
582 | Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen) | |
583 | { | |
97aff369 | 584 | dVAR; |
98994639 HS |
585 | char *xbuf; |
586 | STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ | |
587 | ||
7918f24d NC |
588 | PERL_ARGS_ASSERT_MEM_COLLXFRM; |
589 | ||
98994639 HS |
590 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ |
591 | /* the +1 is for the terminating NUL. */ | |
592 | ||
593 | xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1; | |
a02a5408 | 594 | Newx(xbuf, xAlloc, char); |
98994639 HS |
595 | if (! xbuf) |
596 | goto bad; | |
597 | ||
598 | *(U32*)xbuf = PL_collation_ix; | |
599 | xout = sizeof(PL_collation_ix); | |
600 | for (xin = 0; xin < len; ) { | |
224e8ef5 | 601 | Size_t xused; |
98994639 HS |
602 | |
603 | for (;;) { | |
604 | xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); | |
224e8ef5 | 605 | if (xused >= PERL_INT_MAX) |
98994639 | 606 | goto bad; |
eb160463 | 607 | if ((STRLEN)xused < xAlloc - xout) |
98994639 HS |
608 | break; |
609 | xAlloc = (2 * xAlloc) + 1; | |
610 | Renew(xbuf, xAlloc, char); | |
611 | if (! xbuf) | |
612 | goto bad; | |
613 | } | |
614 | ||
615 | xin += strlen(s + xin) + 1; | |
616 | xout += xused; | |
617 | ||
618 | /* Embedded NULs are understood but silently skipped | |
619 | * because they make no sense in locale collation. */ | |
620 | } | |
621 | ||
622 | xbuf[xout] = '\0'; | |
623 | *xlen = xout - sizeof(PL_collation_ix); | |
624 | return xbuf; | |
625 | ||
626 | bad: | |
627 | Safefree(xbuf); | |
628 | *xlen = 0; | |
629 | return NULL; | |
630 | } | |
631 | ||
632 | #endif /* USE_LOCALE_COLLATE */ | |
633 | ||
66610fdd RGS |
634 | /* |
635 | * Local variables: | |
636 | * c-indentation-style: bsd | |
637 | * c-basic-offset: 4 | |
638 | * indent-tabs-mode: t | |
639 | * End: | |
640 | * | |
37442d52 RGS |
641 | * ex: set ts=8 sts=4 sw=4 noet: |
642 | */ |