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 TC |
12 | * A Elbereth Gilthoniel, |
13 | * silivren penna míriel | |
14 | * o menel aglar elenath! | |
15 | * Na-chaered palan-díriel | |
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, | |
49 | * in some unspecificed order) | |
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; | |
98994639 HS |
234 | if (mult < 1) |
235 | Perl_croak(aTHX_ "strxfrm() gets absurd"); | |
eb160463 | 236 | PL_collxfrm_base = (fa > (Size_t)mult) ? (fa - mult) : 0; |
98994639 HS |
237 | PL_collxfrm_mult = mult; |
238 | } | |
239 | } | |
240 | ||
241 | #endif /* USE_LOCALE_COLLATE */ | |
242 | } | |
243 | ||
244 | /* | |
245 | * Initialize locale awareness. | |
246 | */ | |
247 | int | |
248 | Perl_init_i18nl10n(pTHX_ int printwarn) | |
249 | { | |
250 | int ok = 1; | |
251 | /* returns | |
252 | * 1 = set ok or not applicable, | |
253 | * 0 = fallback to C locale, | |
254 | * -1 = fallback to C locale failed | |
255 | */ | |
256 | ||
257 | #if defined(USE_LOCALE) | |
97aff369 | 258 | dVAR; |
98994639 HS |
259 | |
260 | #ifdef USE_LOCALE_CTYPE | |
261 | char *curctype = NULL; | |
262 | #endif /* USE_LOCALE_CTYPE */ | |
263 | #ifdef USE_LOCALE_COLLATE | |
264 | char *curcoll = NULL; | |
265 | #endif /* USE_LOCALE_COLLATE */ | |
266 | #ifdef USE_LOCALE_NUMERIC | |
267 | char *curnum = NULL; | |
268 | #endif /* USE_LOCALE_NUMERIC */ | |
269 | #ifdef __GLIBC__ | |
7452cf6a | 270 | char * const language = PerlEnv_getenv("LANGUAGE"); |
98994639 | 271 | #endif |
7452cf6a AL |
272 | char * const lc_all = PerlEnv_getenv("LC_ALL"); |
273 | char * const lang = PerlEnv_getenv("LANG"); | |
98994639 HS |
274 | bool setlocale_failure = FALSE; |
275 | ||
276 | #ifdef LOCALE_ENVIRON_REQUIRED | |
277 | ||
278 | /* | |
279 | * Ultrix setlocale(..., "") fails if there are no environment | |
280 | * variables from which to get a locale name. | |
281 | */ | |
282 | ||
283 | bool done = FALSE; | |
284 | ||
285 | #ifdef LC_ALL | |
286 | if (lang) { | |
287 | if (setlocale(LC_ALL, "")) | |
288 | done = TRUE; | |
289 | else | |
290 | setlocale_failure = TRUE; | |
291 | } | |
292 | if (!setlocale_failure) { | |
293 | #ifdef USE_LOCALE_CTYPE | |
56279a21 | 294 | Safefree(curctype); |
98994639 HS |
295 | if (! (curctype = |
296 | setlocale(LC_CTYPE, | |
297 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) | |
bd61b366 | 298 | ? "" : NULL))) |
98994639 HS |
299 | setlocale_failure = TRUE; |
300 | else | |
301 | curctype = savepv(curctype); | |
302 | #endif /* USE_LOCALE_CTYPE */ | |
303 | #ifdef USE_LOCALE_COLLATE | |
56279a21 | 304 | Safefree(curcoll); |
98994639 HS |
305 | if (! (curcoll = |
306 | setlocale(LC_COLLATE, | |
307 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) | |
bd61b366 | 308 | ? "" : NULL))) |
98994639 HS |
309 | setlocale_failure = TRUE; |
310 | else | |
311 | curcoll = savepv(curcoll); | |
312 | #endif /* USE_LOCALE_COLLATE */ | |
313 | #ifdef USE_LOCALE_NUMERIC | |
56279a21 | 314 | Safefree(curnum); |
98994639 HS |
315 | if (! (curnum = |
316 | setlocale(LC_NUMERIC, | |
317 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) | |
bd61b366 | 318 | ? "" : NULL))) |
98994639 HS |
319 | setlocale_failure = TRUE; |
320 | else | |
321 | curnum = savepv(curnum); | |
322 | #endif /* USE_LOCALE_NUMERIC */ | |
323 | } | |
324 | ||
325 | #endif /* LC_ALL */ | |
326 | ||
327 | #endif /* !LOCALE_ENVIRON_REQUIRED */ | |
328 | ||
329 | #ifdef LC_ALL | |
330 | if (! setlocale(LC_ALL, "")) | |
331 | setlocale_failure = TRUE; | |
332 | #endif /* LC_ALL */ | |
333 | ||
334 | if (!setlocale_failure) { | |
335 | #ifdef USE_LOCALE_CTYPE | |
6cb43dbf | 336 | Safefree(curctype); |
98994639 HS |
337 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
338 | setlocale_failure = TRUE; | |
339 | else | |
340 | curctype = savepv(curctype); | |
341 | #endif /* USE_LOCALE_CTYPE */ | |
342 | #ifdef USE_LOCALE_COLLATE | |
6cb43dbf | 343 | Safefree(curcoll); |
98994639 HS |
344 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
345 | setlocale_failure = TRUE; | |
346 | else | |
347 | curcoll = savepv(curcoll); | |
348 | #endif /* USE_LOCALE_COLLATE */ | |
349 | #ifdef USE_LOCALE_NUMERIC | |
6cb43dbf | 350 | Safefree(curnum); |
98994639 HS |
351 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
352 | setlocale_failure = TRUE; | |
353 | else | |
354 | curnum = savepv(curnum); | |
355 | #endif /* USE_LOCALE_NUMERIC */ | |
356 | } | |
357 | ||
358 | if (setlocale_failure) { | |
359 | char *p; | |
0bd48802 | 360 | const bool locwarn = (printwarn > 1 || |
98994639 HS |
361 | (printwarn && |
362 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p)))); | |
363 | ||
364 | if (locwarn) { | |
365 | #ifdef LC_ALL | |
366 | ||
367 | PerlIO_printf(Perl_error_log, | |
368 | "perl: warning: Setting locale failed.\n"); | |
369 | ||
370 | #else /* !LC_ALL */ | |
371 | ||
372 | PerlIO_printf(Perl_error_log, | |
373 | "perl: warning: Setting locale failed for the categories:\n\t"); | |
374 | #ifdef USE_LOCALE_CTYPE | |
375 | if (! curctype) | |
376 | PerlIO_printf(Perl_error_log, "LC_CTYPE "); | |
377 | #endif /* USE_LOCALE_CTYPE */ | |
378 | #ifdef USE_LOCALE_COLLATE | |
379 | if (! curcoll) | |
380 | PerlIO_printf(Perl_error_log, "LC_COLLATE "); | |
381 | #endif /* USE_LOCALE_COLLATE */ | |
382 | #ifdef USE_LOCALE_NUMERIC | |
383 | if (! curnum) | |
384 | PerlIO_printf(Perl_error_log, "LC_NUMERIC "); | |
385 | #endif /* USE_LOCALE_NUMERIC */ | |
386 | PerlIO_printf(Perl_error_log, "\n"); | |
387 | ||
388 | #endif /* LC_ALL */ | |
389 | ||
390 | PerlIO_printf(Perl_error_log, | |
391 | "perl: warning: Please check that your locale settings:\n"); | |
392 | ||
393 | #ifdef __GLIBC__ | |
394 | PerlIO_printf(Perl_error_log, | |
395 | "\tLANGUAGE = %c%s%c,\n", | |
396 | language ? '"' : '(', | |
397 | language ? language : "unset", | |
398 | language ? '"' : ')'); | |
399 | #endif | |
400 | ||
401 | PerlIO_printf(Perl_error_log, | |
402 | "\tLC_ALL = %c%s%c,\n", | |
403 | lc_all ? '"' : '(', | |
404 | lc_all ? lc_all : "unset", | |
405 | lc_all ? '"' : ')'); | |
406 | ||
407 | #if defined(USE_ENVIRON_ARRAY) | |
408 | { | |
409 | char **e; | |
410 | for (e = environ; *e; e++) { | |
411 | if (strnEQ(*e, "LC_", 3) | |
412 | && strnNE(*e, "LC_ALL=", 7) | |
413 | && (p = strchr(*e, '='))) | |
414 | PerlIO_printf(Perl_error_log, "\t%.*s = \"%s\",\n", | |
415 | (int)(p - *e), *e, p + 1); | |
416 | } | |
417 | } | |
418 | #else | |
419 | PerlIO_printf(Perl_error_log, | |
420 | "\t(possibly more locale environment variables)\n"); | |
421 | #endif | |
422 | ||
423 | PerlIO_printf(Perl_error_log, | |
424 | "\tLANG = %c%s%c\n", | |
425 | lang ? '"' : '(', | |
426 | lang ? lang : "unset", | |
427 | lang ? '"' : ')'); | |
428 | ||
429 | PerlIO_printf(Perl_error_log, | |
430 | " are supported and installed on your system.\n"); | |
431 | } | |
432 | ||
433 | #ifdef LC_ALL | |
434 | ||
435 | if (setlocale(LC_ALL, "C")) { | |
436 | if (locwarn) | |
437 | PerlIO_printf(Perl_error_log, | |
438 | "perl: warning: Falling back to the standard locale (\"C\").\n"); | |
439 | ok = 0; | |
440 | } | |
441 | else { | |
442 | if (locwarn) | |
443 | PerlIO_printf(Perl_error_log, | |
444 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); | |
445 | ok = -1; | |
446 | } | |
447 | ||
448 | #else /* ! LC_ALL */ | |
449 | ||
450 | if (0 | |
451 | #ifdef USE_LOCALE_CTYPE | |
452 | || !(curctype || setlocale(LC_CTYPE, "C")) | |
453 | #endif /* USE_LOCALE_CTYPE */ | |
454 | #ifdef USE_LOCALE_COLLATE | |
455 | || !(curcoll || setlocale(LC_COLLATE, "C")) | |
456 | #endif /* USE_LOCALE_COLLATE */ | |
457 | #ifdef USE_LOCALE_NUMERIC | |
458 | || !(curnum || setlocale(LC_NUMERIC, "C")) | |
459 | #endif /* USE_LOCALE_NUMERIC */ | |
460 | ) | |
461 | { | |
462 | if (locwarn) | |
463 | PerlIO_printf(Perl_error_log, | |
464 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); | |
465 | ok = -1; | |
466 | } | |
467 | ||
468 | #endif /* ! LC_ALL */ | |
469 | ||
470 | #ifdef USE_LOCALE_CTYPE | |
56279a21 | 471 | Safefree(curctype); |
bd61b366 | 472 | curctype = savepv(setlocale(LC_CTYPE, NULL)); |
98994639 HS |
473 | #endif /* USE_LOCALE_CTYPE */ |
474 | #ifdef USE_LOCALE_COLLATE | |
56279a21 | 475 | Safefree(curcoll); |
bd61b366 | 476 | curcoll = savepv(setlocale(LC_COLLATE, NULL)); |
98994639 HS |
477 | #endif /* USE_LOCALE_COLLATE */ |
478 | #ifdef USE_LOCALE_NUMERIC | |
56279a21 | 479 | Safefree(curnum); |
bd61b366 | 480 | curnum = savepv(setlocale(LC_NUMERIC, NULL)); |
98994639 HS |
481 | #endif /* USE_LOCALE_NUMERIC */ |
482 | } | |
483 | else { | |
484 | ||
485 | #ifdef USE_LOCALE_CTYPE | |
486 | new_ctype(curctype); | |
487 | #endif /* USE_LOCALE_CTYPE */ | |
488 | ||
489 | #ifdef USE_LOCALE_COLLATE | |
490 | new_collate(curcoll); | |
491 | #endif /* USE_LOCALE_COLLATE */ | |
492 | ||
493 | #ifdef USE_LOCALE_NUMERIC | |
494 | new_numeric(curnum); | |
495 | #endif /* USE_LOCALE_NUMERIC */ | |
b310b053 | 496 | |
98994639 HS |
497 | } |
498 | ||
499 | #endif /* USE_LOCALE */ | |
500 | ||
ec71e770 | 501 | #ifdef USE_PERLIO |
b310b053 | 502 | { |
fde18df1 | 503 | /* Set PL_utf8locale to TRUE if using PerlIO _and_ |
ec71e770 | 504 | any of the following are true: |
085a54d9 | 505 | - nl_langinfo(CODESET) contains /^utf-?8/i |
61de9fb5 | 506 | - $ENV{LC_ALL} contains /^utf-?8/i |
085a54d9 | 507 | - $ENV{LC_CTYPE} contains /^utf-?8/i |
61de9fb5 JH |
508 | - $ENV{LANG} contains /^utf-?8/i |
509 | The LC_ALL, LC_CTYPE, LANG obey the usual override | |
510 | hierarchy of locale environment variables. (LANGUAGE | |
511 | affects only LC_MESSAGES only under glibc.) (If present, | |
512 | it overrides LC_MESSAGES for GNU gettext, and it also | |
513 | can have more than one locale, separated by spaces, | |
514 | in case you need to know.) | |
8aa8f774 | 515 | If PL_utf8locale and PL_unicode (set by -C or by $ENV{PERL_UNICODE}) |
a05d7ebb | 516 | are true, perl.c:S_parse_body() will turn on the PerlIO :utf8 layer |
fde18df1 | 517 | on STDIN, STDOUT, STDERR, _and_ the default open discipline. |
085a54d9 | 518 | */ |
fde18df1 | 519 | bool utf8locale = FALSE; |
b310b053 JH |
520 | char *codeset = NULL; |
521 | #if defined(HAS_NL_LANGINFO) && defined(CODESET) | |
522 | codeset = nl_langinfo(CODESET); | |
523 | #endif | |
61de9fb5 | 524 | if (codeset) |
e6226b18 KW |
525 | utf8locale = (foldEQ(codeset, STR_WITH_LEN("UTF-8")) |
526 | || foldEQ(codeset, STR_WITH_LEN("UTF8") )); | |
077a72a9 | 527 | #if defined(USE_LOCALE) |
61de9fb5 JH |
528 | else { /* nl_langinfo(CODESET) is supposed to correctly |
529 | * interpret the locale environment variables, | |
530 | * but just in case it fails, let's do this manually. */ | |
531 | if (lang) | |
e6226b18 KW |
532 | utf8locale = (foldEQ(lang, STR_WITH_LEN("UTF-8")) |
533 | || foldEQ(lang, STR_WITH_LEN("UTF8") )); | |
b310b053 | 534 | #ifdef USE_LOCALE_CTYPE |
61de9fb5 | 535 | if (curctype) |
e6226b18 KW |
536 | utf8locale = (foldEQ(curctype, STR_WITH_LEN("UTF-8")) |
537 | || foldEQ(curctype, STR_WITH_LEN("UTF8") )); | |
b310b053 | 538 | #endif |
61de9fb5 | 539 | if (lc_all) |
e6226b18 KW |
540 | utf8locale = (foldEQ(lc_all, STR_WITH_LEN("UTF-8")) |
541 | || foldEQ(lc_all, STR_WITH_LEN("UTF8") )); | |
61de9fb5 | 542 | } |
fde18df1 JH |
543 | #endif /* USE_LOCALE */ |
544 | if (utf8locale) | |
545 | PL_utf8locale = TRUE; | |
546 | } | |
a05d7ebb | 547 | /* Set PL_unicode to $ENV{PERL_UNICODE} if using PerlIO. |
fde18df1 JH |
548 | This is an alternative to using the -C command line switch |
549 | (the -C if present will override this). */ | |
550 | { | |
dd374669 | 551 | const char *p = PerlEnv_getenv("PERL_UNICODE"); |
a05d7ebb | 552 | PL_unicode = p ? parse_unicode_opts(&p) : 0; |
5a22a2bb NC |
553 | if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG) |
554 | PL_utf8cache = -1; | |
b310b053 | 555 | } |
ec71e770 | 556 | #endif |
b310b053 | 557 | |
98994639 | 558 | #ifdef USE_LOCALE_CTYPE |
43c5f42d | 559 | Safefree(curctype); |
98994639 HS |
560 | #endif /* USE_LOCALE_CTYPE */ |
561 | #ifdef USE_LOCALE_COLLATE | |
43c5f42d | 562 | Safefree(curcoll); |
98994639 HS |
563 | #endif /* USE_LOCALE_COLLATE */ |
564 | #ifdef USE_LOCALE_NUMERIC | |
43c5f42d | 565 | Safefree(curnum); |
98994639 HS |
566 | #endif /* USE_LOCALE_NUMERIC */ |
567 | return ok; | |
568 | } | |
569 | ||
98994639 HS |
570 | #ifdef USE_LOCALE_COLLATE |
571 | ||
572 | /* | |
573 | * mem_collxfrm() is a bit like strxfrm() but with two important | |
574 | * differences. First, it handles embedded NULs. Second, it allocates | |
575 | * a bit more memory than needed for the transformed data itself. | |
576 | * The real transformed data begins at offset sizeof(collationix). | |
577 | * Please see sv_collxfrm() to see how this is used. | |
578 | */ | |
166f8a29 | 579 | |
98994639 HS |
580 | char * |
581 | Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen) | |
582 | { | |
97aff369 | 583 | dVAR; |
98994639 HS |
584 | char *xbuf; |
585 | STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ | |
586 | ||
7918f24d NC |
587 | PERL_ARGS_ASSERT_MEM_COLLXFRM; |
588 | ||
98994639 HS |
589 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ |
590 | /* the +1 is for the terminating NUL. */ | |
591 | ||
592 | xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1; | |
a02a5408 | 593 | Newx(xbuf, xAlloc, char); |
98994639 HS |
594 | if (! xbuf) |
595 | goto bad; | |
596 | ||
597 | *(U32*)xbuf = PL_collation_ix; | |
598 | xout = sizeof(PL_collation_ix); | |
599 | for (xin = 0; xin < len; ) { | |
224e8ef5 | 600 | Size_t xused; |
98994639 HS |
601 | |
602 | for (;;) { | |
603 | xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); | |
224e8ef5 | 604 | if (xused >= PERL_INT_MAX) |
98994639 | 605 | goto bad; |
eb160463 | 606 | if ((STRLEN)xused < xAlloc - xout) |
98994639 HS |
607 | break; |
608 | xAlloc = (2 * xAlloc) + 1; | |
609 | Renew(xbuf, xAlloc, char); | |
610 | if (! xbuf) | |
611 | goto bad; | |
612 | } | |
613 | ||
614 | xin += strlen(s + xin) + 1; | |
615 | xout += xused; | |
616 | ||
617 | /* Embedded NULs are understood but silently skipped | |
618 | * because they make no sense in locale collation. */ | |
619 | } | |
620 | ||
621 | xbuf[xout] = '\0'; | |
622 | *xlen = xout - sizeof(PL_collation_ix); | |
623 | return xbuf; | |
624 | ||
625 | bad: | |
626 | Safefree(xbuf); | |
627 | *xlen = 0; | |
628 | return NULL; | |
629 | } | |
630 | ||
631 | #endif /* USE_LOCALE_COLLATE */ | |
632 | ||
66610fdd RGS |
633 | /* |
634 | * Local variables: | |
635 | * c-indentation-style: bsd | |
636 | * c-basic-offset: 4 | |
637 | * indent-tabs-mode: t | |
638 | * End: | |
639 | * | |
37442d52 RGS |
640 | * ex: set ts=8 sts=4 sw=4 noet: |
641 | */ |