Commit | Line | Data |
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98994639 HS |
1 | /* locale.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
acde74e1 | 4 | * 2000, 2001, 2002, 2003, 2005, 2006, 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 | /* | |
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 | ||
166f8a29 DM |
21 | /* utility functions for handling locale-specific stuff like what |
22 | * character represents the decimal point. | |
23 | */ | |
24 | ||
98994639 HS |
25 | #include "EXTERN.h" |
26 | #define PERL_IN_LOCALE_C | |
27 | #include "perl.h" | |
28 | ||
29 | #ifdef I_LOCALE | |
30 | # include <locale.h> | |
31 | #endif | |
32 | ||
b310b053 JH |
33 | #ifdef I_LANGINFO |
34 | # include <langinfo.h> | |
35 | #endif | |
36 | ||
a4af207c JH |
37 | #include "reentr.h" |
38 | ||
27da23d5 | 39 | #if defined(USE_LOCALE_NUMERIC) || defined(USE_LOCALE_COLLATE) |
98994639 HS |
40 | /* |
41 | * Standardize the locale name from a string returned by 'setlocale'. | |
42 | * | |
43 | * The standard return value of setlocale() is either | |
44 | * (1) "xx_YY" if the first argument of setlocale() is not LC_ALL | |
45 | * (2) "xa_YY xb_YY ..." if the first argument of setlocale() is LC_ALL | |
46 | * (the space-separated values represent the various sublocales, | |
47 | * in some unspecificed order) | |
48 | * | |
49 | * In some platforms it has a form like "LC_SOMETHING=Lang_Country.866\n", | |
50 | * which is harmful for further use of the string in setlocale(). | |
51 | * | |
52 | */ | |
53 | STATIC char * | |
54 | S_stdize_locale(pTHX_ char *locs) | |
55 | { | |
7452cf6a | 56 | const char * const s = strchr(locs, '='); |
98994639 HS |
57 | bool okay = TRUE; |
58 | ||
8772537c AL |
59 | if (s) { |
60 | const char * const t = strchr(s, '.'); | |
98994639 | 61 | okay = FALSE; |
8772537c AL |
62 | if (t) { |
63 | const char * const u = strchr(t, '\n'); | |
64 | if (u && (u[1] == 0)) { | |
65 | const STRLEN len = u - s; | |
66 | Move(s + 1, locs, len, char); | |
67 | locs[len] = 0; | |
68 | okay = TRUE; | |
98994639 HS |
69 | } |
70 | } | |
71 | } | |
72 | ||
73 | if (!okay) | |
74 | Perl_croak(aTHX_ "Can't fix broken locale name \"%s\"", locs); | |
75 | ||
76 | return locs; | |
77 | } | |
27da23d5 | 78 | #endif |
98994639 HS |
79 | |
80 | void | |
81 | Perl_set_numeric_radix(pTHX) | |
82 | { | |
83 | #ifdef USE_LOCALE_NUMERIC | |
97aff369 | 84 | dVAR; |
98994639 | 85 | # ifdef HAS_LOCALECONV |
7452cf6a | 86 | const struct lconv* const lc = localeconv(); |
98994639 | 87 | |
98994639 HS |
88 | if (lc && lc->decimal_point) { |
89 | if (lc->decimal_point[0] == '.' && lc->decimal_point[1] == 0) { | |
90 | SvREFCNT_dec(PL_numeric_radix_sv); | |
a0714e2c | 91 | PL_numeric_radix_sv = NULL; |
98994639 HS |
92 | } |
93 | else { | |
94 | if (PL_numeric_radix_sv) | |
95 | sv_setpv(PL_numeric_radix_sv, lc->decimal_point); | |
96 | else | |
97 | PL_numeric_radix_sv = newSVpv(lc->decimal_point, 0); | |
98 | } | |
99 | } | |
100 | else | |
a0714e2c | 101 | PL_numeric_radix_sv = NULL; |
98994639 HS |
102 | # endif /* HAS_LOCALECONV */ |
103 | #endif /* USE_LOCALE_NUMERIC */ | |
104 | } | |
105 | ||
106 | /* | |
107 | * Set up for a new numeric locale. | |
108 | */ | |
109 | void | |
8772537c | 110 | Perl_new_numeric(pTHX_ const char *newnum) |
98994639 HS |
111 | { |
112 | #ifdef USE_LOCALE_NUMERIC | |
97aff369 | 113 | dVAR; |
98994639 HS |
114 | |
115 | if (! newnum) { | |
43c5f42d NC |
116 | Safefree(PL_numeric_name); |
117 | PL_numeric_name = NULL; | |
98994639 HS |
118 | PL_numeric_standard = TRUE; |
119 | PL_numeric_local = TRUE; | |
120 | return; | |
121 | } | |
122 | ||
123 | if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) { | |
124 | Safefree(PL_numeric_name); | |
125 | PL_numeric_name = stdize_locale(savepv(newnum)); | |
770526c1 NC |
126 | PL_numeric_standard = ((*newnum == 'C' && newnum[1] == '\0') |
127 | || strEQ(newnum, "POSIX")); | |
98994639 HS |
128 | PL_numeric_local = TRUE; |
129 | set_numeric_radix(); | |
130 | } | |
131 | ||
132 | #endif /* USE_LOCALE_NUMERIC */ | |
133 | } | |
134 | ||
135 | void | |
136 | Perl_set_numeric_standard(pTHX) | |
137 | { | |
138 | #ifdef USE_LOCALE_NUMERIC | |
97aff369 | 139 | dVAR; |
98994639 HS |
140 | |
141 | if (! PL_numeric_standard) { | |
142 | setlocale(LC_NUMERIC, "C"); | |
143 | PL_numeric_standard = TRUE; | |
144 | PL_numeric_local = FALSE; | |
145 | set_numeric_radix(); | |
146 | } | |
147 | ||
148 | #endif /* USE_LOCALE_NUMERIC */ | |
149 | } | |
150 | ||
151 | void | |
152 | Perl_set_numeric_local(pTHX) | |
153 | { | |
154 | #ifdef USE_LOCALE_NUMERIC | |
97aff369 | 155 | dVAR; |
98994639 HS |
156 | |
157 | if (! PL_numeric_local) { | |
158 | setlocale(LC_NUMERIC, PL_numeric_name); | |
159 | PL_numeric_standard = FALSE; | |
160 | PL_numeric_local = TRUE; | |
161 | set_numeric_radix(); | |
162 | } | |
163 | ||
164 | #endif /* USE_LOCALE_NUMERIC */ | |
165 | } | |
166 | ||
167 | /* | |
168 | * Set up for a new ctype locale. | |
169 | */ | |
170 | void | |
8772537c | 171 | Perl_new_ctype(pTHX_ const char *newctype) |
98994639 HS |
172 | { |
173 | #ifdef USE_LOCALE_CTYPE | |
27da23d5 | 174 | dVAR; |
98994639 HS |
175 | int i; |
176 | ||
177 | for (i = 0; i < 256; i++) { | |
178 | if (isUPPER_LC(i)) | |
179 | PL_fold_locale[i] = toLOWER_LC(i); | |
180 | else if (isLOWER_LC(i)) | |
181 | PL_fold_locale[i] = toUPPER_LC(i); | |
182 | else | |
183 | PL_fold_locale[i] = i; | |
184 | } | |
185 | ||
186 | #endif /* USE_LOCALE_CTYPE */ | |
8772537c | 187 | PERL_UNUSED_ARG(newctype); |
96a5add6 | 188 | PERL_UNUSED_CONTEXT; |
98994639 HS |
189 | } |
190 | ||
191 | /* | |
192 | * Set up for a new collation locale. | |
193 | */ | |
194 | void | |
8772537c | 195 | Perl_new_collate(pTHX_ const char *newcoll) |
98994639 HS |
196 | { |
197 | #ifdef USE_LOCALE_COLLATE | |
97aff369 | 198 | dVAR; |
98994639 HS |
199 | |
200 | if (! newcoll) { | |
201 | if (PL_collation_name) { | |
202 | ++PL_collation_ix; | |
203 | Safefree(PL_collation_name); | |
204 | PL_collation_name = NULL; | |
205 | } | |
206 | PL_collation_standard = TRUE; | |
207 | PL_collxfrm_base = 0; | |
208 | PL_collxfrm_mult = 2; | |
209 | return; | |
210 | } | |
211 | ||
212 | if (! PL_collation_name || strNE(PL_collation_name, newcoll)) { | |
213 | ++PL_collation_ix; | |
214 | Safefree(PL_collation_name); | |
215 | PL_collation_name = stdize_locale(savepv(newcoll)); | |
770526c1 NC |
216 | PL_collation_standard = ((*newcoll == 'C' && newcoll[1] == '\0') |
217 | || strEQ(newcoll, "POSIX")); | |
98994639 HS |
218 | |
219 | { | |
220 | /* 2: at most so many chars ('a', 'b'). */ | |
221 | /* 50: surely no system expands a char more. */ | |
222 | #define XFRMBUFSIZE (2 * 50) | |
223 | char xbuf[XFRMBUFSIZE]; | |
8772537c AL |
224 | const Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); |
225 | const Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); | |
226 | const SSize_t mult = fb - fa; | |
98994639 HS |
227 | if (mult < 1) |
228 | Perl_croak(aTHX_ "strxfrm() gets absurd"); | |
eb160463 | 229 | PL_collxfrm_base = (fa > (Size_t)mult) ? (fa - mult) : 0; |
98994639 HS |
230 | PL_collxfrm_mult = mult; |
231 | } | |
232 | } | |
233 | ||
234 | #endif /* USE_LOCALE_COLLATE */ | |
235 | } | |
236 | ||
237 | /* | |
238 | * Initialize locale awareness. | |
239 | */ | |
240 | int | |
241 | Perl_init_i18nl10n(pTHX_ int printwarn) | |
242 | { | |
243 | int ok = 1; | |
244 | /* returns | |
245 | * 1 = set ok or not applicable, | |
246 | * 0 = fallback to C locale, | |
247 | * -1 = fallback to C locale failed | |
248 | */ | |
249 | ||
250 | #if defined(USE_LOCALE) | |
97aff369 | 251 | dVAR; |
98994639 HS |
252 | |
253 | #ifdef USE_LOCALE_CTYPE | |
254 | char *curctype = NULL; | |
255 | #endif /* USE_LOCALE_CTYPE */ | |
256 | #ifdef USE_LOCALE_COLLATE | |
257 | char *curcoll = NULL; | |
258 | #endif /* USE_LOCALE_COLLATE */ | |
259 | #ifdef USE_LOCALE_NUMERIC | |
260 | char *curnum = NULL; | |
261 | #endif /* USE_LOCALE_NUMERIC */ | |
262 | #ifdef __GLIBC__ | |
7452cf6a | 263 | char * const language = PerlEnv_getenv("LANGUAGE"); |
98994639 | 264 | #endif |
7452cf6a AL |
265 | char * const lc_all = PerlEnv_getenv("LC_ALL"); |
266 | char * const lang = PerlEnv_getenv("LANG"); | |
98994639 HS |
267 | bool setlocale_failure = FALSE; |
268 | ||
269 | #ifdef LOCALE_ENVIRON_REQUIRED | |
270 | ||
271 | /* | |
272 | * Ultrix setlocale(..., "") fails if there are no environment | |
273 | * variables from which to get a locale name. | |
274 | */ | |
275 | ||
276 | bool done = FALSE; | |
277 | ||
278 | #ifdef LC_ALL | |
279 | if (lang) { | |
280 | if (setlocale(LC_ALL, "")) | |
281 | done = TRUE; | |
282 | else | |
283 | setlocale_failure = TRUE; | |
284 | } | |
285 | if (!setlocale_failure) { | |
286 | #ifdef USE_LOCALE_CTYPE | |
56279a21 | 287 | Safefree(curctype); |
98994639 HS |
288 | if (! (curctype = |
289 | setlocale(LC_CTYPE, | |
290 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) | |
bd61b366 | 291 | ? "" : NULL))) |
98994639 HS |
292 | setlocale_failure = TRUE; |
293 | else | |
294 | curctype = savepv(curctype); | |
295 | #endif /* USE_LOCALE_CTYPE */ | |
296 | #ifdef USE_LOCALE_COLLATE | |
56279a21 | 297 | Safefree(curcoll); |
98994639 HS |
298 | if (! (curcoll = |
299 | setlocale(LC_COLLATE, | |
300 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) | |
bd61b366 | 301 | ? "" : NULL))) |
98994639 HS |
302 | setlocale_failure = TRUE; |
303 | else | |
304 | curcoll = savepv(curcoll); | |
305 | #endif /* USE_LOCALE_COLLATE */ | |
306 | #ifdef USE_LOCALE_NUMERIC | |
56279a21 | 307 | Safefree(curnum); |
98994639 HS |
308 | if (! (curnum = |
309 | setlocale(LC_NUMERIC, | |
310 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) | |
bd61b366 | 311 | ? "" : NULL))) |
98994639 HS |
312 | setlocale_failure = TRUE; |
313 | else | |
314 | curnum = savepv(curnum); | |
315 | #endif /* USE_LOCALE_NUMERIC */ | |
316 | } | |
317 | ||
318 | #endif /* LC_ALL */ | |
319 | ||
320 | #endif /* !LOCALE_ENVIRON_REQUIRED */ | |
321 | ||
322 | #ifdef LC_ALL | |
323 | if (! setlocale(LC_ALL, "")) | |
324 | setlocale_failure = TRUE; | |
325 | #endif /* LC_ALL */ | |
326 | ||
327 | if (!setlocale_failure) { | |
328 | #ifdef USE_LOCALE_CTYPE | |
6cb43dbf | 329 | Safefree(curctype); |
98994639 HS |
330 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
331 | setlocale_failure = TRUE; | |
332 | else | |
333 | curctype = savepv(curctype); | |
334 | #endif /* USE_LOCALE_CTYPE */ | |
335 | #ifdef USE_LOCALE_COLLATE | |
6cb43dbf | 336 | Safefree(curcoll); |
98994639 HS |
337 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
338 | setlocale_failure = TRUE; | |
339 | else | |
340 | curcoll = savepv(curcoll); | |
341 | #endif /* USE_LOCALE_COLLATE */ | |
342 | #ifdef USE_LOCALE_NUMERIC | |
6cb43dbf | 343 | Safefree(curnum); |
98994639 HS |
344 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
345 | setlocale_failure = TRUE; | |
346 | else | |
347 | curnum = savepv(curnum); | |
348 | #endif /* USE_LOCALE_NUMERIC */ | |
349 | } | |
350 | ||
351 | if (setlocale_failure) { | |
352 | char *p; | |
0bd48802 | 353 | const bool locwarn = (printwarn > 1 || |
98994639 HS |
354 | (printwarn && |
355 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p)))); | |
356 | ||
357 | if (locwarn) { | |
358 | #ifdef LC_ALL | |
359 | ||
360 | PerlIO_printf(Perl_error_log, | |
361 | "perl: warning: Setting locale failed.\n"); | |
362 | ||
363 | #else /* !LC_ALL */ | |
364 | ||
365 | PerlIO_printf(Perl_error_log, | |
366 | "perl: warning: Setting locale failed for the categories:\n\t"); | |
367 | #ifdef USE_LOCALE_CTYPE | |
368 | if (! curctype) | |
369 | PerlIO_printf(Perl_error_log, "LC_CTYPE "); | |
370 | #endif /* USE_LOCALE_CTYPE */ | |
371 | #ifdef USE_LOCALE_COLLATE | |
372 | if (! curcoll) | |
373 | PerlIO_printf(Perl_error_log, "LC_COLLATE "); | |
374 | #endif /* USE_LOCALE_COLLATE */ | |
375 | #ifdef USE_LOCALE_NUMERIC | |
376 | if (! curnum) | |
377 | PerlIO_printf(Perl_error_log, "LC_NUMERIC "); | |
378 | #endif /* USE_LOCALE_NUMERIC */ | |
379 | PerlIO_printf(Perl_error_log, "\n"); | |
380 | ||
381 | #endif /* LC_ALL */ | |
382 | ||
383 | PerlIO_printf(Perl_error_log, | |
384 | "perl: warning: Please check that your locale settings:\n"); | |
385 | ||
386 | #ifdef __GLIBC__ | |
387 | PerlIO_printf(Perl_error_log, | |
388 | "\tLANGUAGE = %c%s%c,\n", | |
389 | language ? '"' : '(', | |
390 | language ? language : "unset", | |
391 | language ? '"' : ')'); | |
392 | #endif | |
393 | ||
394 | PerlIO_printf(Perl_error_log, | |
395 | "\tLC_ALL = %c%s%c,\n", | |
396 | lc_all ? '"' : '(', | |
397 | lc_all ? lc_all : "unset", | |
398 | lc_all ? '"' : ')'); | |
399 | ||
400 | #if defined(USE_ENVIRON_ARRAY) | |
401 | { | |
402 | char **e; | |
403 | for (e = environ; *e; e++) { | |
404 | if (strnEQ(*e, "LC_", 3) | |
405 | && strnNE(*e, "LC_ALL=", 7) | |
406 | && (p = strchr(*e, '='))) | |
407 | PerlIO_printf(Perl_error_log, "\t%.*s = \"%s\",\n", | |
408 | (int)(p - *e), *e, p + 1); | |
409 | } | |
410 | } | |
411 | #else | |
412 | PerlIO_printf(Perl_error_log, | |
413 | "\t(possibly more locale environment variables)\n"); | |
414 | #endif | |
415 | ||
416 | PerlIO_printf(Perl_error_log, | |
417 | "\tLANG = %c%s%c\n", | |
418 | lang ? '"' : '(', | |
419 | lang ? lang : "unset", | |
420 | lang ? '"' : ')'); | |
421 | ||
422 | PerlIO_printf(Perl_error_log, | |
423 | " are supported and installed on your system.\n"); | |
424 | } | |
425 | ||
426 | #ifdef LC_ALL | |
427 | ||
428 | if (setlocale(LC_ALL, "C")) { | |
429 | if (locwarn) | |
430 | PerlIO_printf(Perl_error_log, | |
431 | "perl: warning: Falling back to the standard locale (\"C\").\n"); | |
432 | ok = 0; | |
433 | } | |
434 | else { | |
435 | if (locwarn) | |
436 | PerlIO_printf(Perl_error_log, | |
437 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); | |
438 | ok = -1; | |
439 | } | |
440 | ||
441 | #else /* ! LC_ALL */ | |
442 | ||
443 | if (0 | |
444 | #ifdef USE_LOCALE_CTYPE | |
445 | || !(curctype || setlocale(LC_CTYPE, "C")) | |
446 | #endif /* USE_LOCALE_CTYPE */ | |
447 | #ifdef USE_LOCALE_COLLATE | |
448 | || !(curcoll || setlocale(LC_COLLATE, "C")) | |
449 | #endif /* USE_LOCALE_COLLATE */ | |
450 | #ifdef USE_LOCALE_NUMERIC | |
451 | || !(curnum || setlocale(LC_NUMERIC, "C")) | |
452 | #endif /* USE_LOCALE_NUMERIC */ | |
453 | ) | |
454 | { | |
455 | if (locwarn) | |
456 | PerlIO_printf(Perl_error_log, | |
457 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); | |
458 | ok = -1; | |
459 | } | |
460 | ||
461 | #endif /* ! LC_ALL */ | |
462 | ||
463 | #ifdef USE_LOCALE_CTYPE | |
56279a21 | 464 | Safefree(curctype); |
bd61b366 | 465 | curctype = savepv(setlocale(LC_CTYPE, NULL)); |
98994639 HS |
466 | #endif /* USE_LOCALE_CTYPE */ |
467 | #ifdef USE_LOCALE_COLLATE | |
56279a21 | 468 | Safefree(curcoll); |
bd61b366 | 469 | curcoll = savepv(setlocale(LC_COLLATE, NULL)); |
98994639 HS |
470 | #endif /* USE_LOCALE_COLLATE */ |
471 | #ifdef USE_LOCALE_NUMERIC | |
56279a21 | 472 | Safefree(curnum); |
bd61b366 | 473 | curnum = savepv(setlocale(LC_NUMERIC, NULL)); |
98994639 HS |
474 | #endif /* USE_LOCALE_NUMERIC */ |
475 | } | |
476 | else { | |
477 | ||
478 | #ifdef USE_LOCALE_CTYPE | |
479 | new_ctype(curctype); | |
480 | #endif /* USE_LOCALE_CTYPE */ | |
481 | ||
482 | #ifdef USE_LOCALE_COLLATE | |
483 | new_collate(curcoll); | |
484 | #endif /* USE_LOCALE_COLLATE */ | |
485 | ||
486 | #ifdef USE_LOCALE_NUMERIC | |
487 | new_numeric(curnum); | |
488 | #endif /* USE_LOCALE_NUMERIC */ | |
b310b053 | 489 | |
98994639 HS |
490 | } |
491 | ||
492 | #endif /* USE_LOCALE */ | |
493 | ||
ec71e770 | 494 | #ifdef USE_PERLIO |
b310b053 | 495 | { |
fde18df1 | 496 | /* Set PL_utf8locale to TRUE if using PerlIO _and_ |
ec71e770 | 497 | any of the following are true: |
085a54d9 | 498 | - nl_langinfo(CODESET) contains /^utf-?8/i |
61de9fb5 | 499 | - $ENV{LC_ALL} contains /^utf-?8/i |
085a54d9 | 500 | - $ENV{LC_CTYPE} contains /^utf-?8/i |
61de9fb5 JH |
501 | - $ENV{LANG} contains /^utf-?8/i |
502 | The LC_ALL, LC_CTYPE, LANG obey the usual override | |
503 | hierarchy of locale environment variables. (LANGUAGE | |
504 | affects only LC_MESSAGES only under glibc.) (If present, | |
505 | it overrides LC_MESSAGES for GNU gettext, and it also | |
506 | can have more than one locale, separated by spaces, | |
507 | in case you need to know.) | |
8aa8f774 | 508 | If PL_utf8locale and PL_unicode (set by -C or by $ENV{PERL_UNICODE}) |
a05d7ebb | 509 | are true, perl.c:S_parse_body() will turn on the PerlIO :utf8 layer |
fde18df1 | 510 | on STDIN, STDOUT, STDERR, _and_ the default open discipline. |
085a54d9 | 511 | */ |
fde18df1 | 512 | bool utf8locale = FALSE; |
b310b053 JH |
513 | char *codeset = NULL; |
514 | #if defined(HAS_NL_LANGINFO) && defined(CODESET) | |
515 | codeset = nl_langinfo(CODESET); | |
516 | #endif | |
61de9fb5 | 517 | if (codeset) |
89529cee GA |
518 | utf8locale = (Perl_ibcmp(aTHX_ codeset, STR_WITH_LEN("UTF-8")) == 0 || |
519 | Perl_ibcmp(aTHX_ codeset, STR_WITH_LEN("UTF8") ) == 0); | |
077a72a9 | 520 | #if defined(USE_LOCALE) |
61de9fb5 JH |
521 | else { /* nl_langinfo(CODESET) is supposed to correctly |
522 | * interpret the locale environment variables, | |
523 | * but just in case it fails, let's do this manually. */ | |
524 | if (lang) | |
89529cee GA |
525 | utf8locale = (Perl_ibcmp(aTHX_ lang, STR_WITH_LEN("UTF-8")) == 0 || |
526 | Perl_ibcmp(aTHX_ lang, STR_WITH_LEN("UTF8") ) == 0); | |
b310b053 | 527 | #ifdef USE_LOCALE_CTYPE |
61de9fb5 | 528 | if (curctype) |
89529cee GA |
529 | utf8locale = (Perl_ibcmp(aTHX_ curctype, STR_WITH_LEN("UTF-8")) == 0 || |
530 | Perl_ibcmp(aTHX_ curctype, STR_WITH_LEN("UTF8") ) == 0); | |
b310b053 | 531 | #endif |
61de9fb5 | 532 | if (lc_all) |
89529cee GA |
533 | utf8locale = (Perl_ibcmp(aTHX_ lc_all, STR_WITH_LEN("UTF-8")) == 0 || |
534 | Perl_ibcmp(aTHX_ lc_all, STR_WITH_LEN("UTF8") ) == 0); | |
61de9fb5 | 535 | } |
fde18df1 JH |
536 | #endif /* USE_LOCALE */ |
537 | if (utf8locale) | |
538 | PL_utf8locale = TRUE; | |
539 | } | |
a05d7ebb | 540 | /* Set PL_unicode to $ENV{PERL_UNICODE} if using PerlIO. |
fde18df1 JH |
541 | This is an alternative to using the -C command line switch |
542 | (the -C if present will override this). */ | |
543 | { | |
dd374669 | 544 | const char *p = PerlEnv_getenv("PERL_UNICODE"); |
a05d7ebb | 545 | PL_unicode = p ? parse_unicode_opts(&p) : 0; |
5a22a2bb NC |
546 | if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG) |
547 | PL_utf8cache = -1; | |
b310b053 | 548 | } |
ec71e770 | 549 | #endif |
b310b053 | 550 | |
98994639 | 551 | #ifdef USE_LOCALE_CTYPE |
43c5f42d | 552 | Safefree(curctype); |
98994639 HS |
553 | #endif /* USE_LOCALE_CTYPE */ |
554 | #ifdef USE_LOCALE_COLLATE | |
43c5f42d | 555 | Safefree(curcoll); |
98994639 HS |
556 | #endif /* USE_LOCALE_COLLATE */ |
557 | #ifdef USE_LOCALE_NUMERIC | |
43c5f42d | 558 | Safefree(curnum); |
98994639 HS |
559 | #endif /* USE_LOCALE_NUMERIC */ |
560 | return ok; | |
561 | } | |
562 | ||
98994639 HS |
563 | #ifdef USE_LOCALE_COLLATE |
564 | ||
565 | /* | |
566 | * mem_collxfrm() is a bit like strxfrm() but with two important | |
567 | * differences. First, it handles embedded NULs. Second, it allocates | |
568 | * a bit more memory than needed for the transformed data itself. | |
569 | * The real transformed data begins at offset sizeof(collationix). | |
570 | * Please see sv_collxfrm() to see how this is used. | |
571 | */ | |
166f8a29 | 572 | |
98994639 HS |
573 | char * |
574 | Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen) | |
575 | { | |
97aff369 | 576 | dVAR; |
98994639 HS |
577 | char *xbuf; |
578 | STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ | |
579 | ||
580 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ | |
581 | /* the +1 is for the terminating NUL. */ | |
582 | ||
583 | xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1; | |
a02a5408 | 584 | Newx(xbuf, xAlloc, char); |
98994639 HS |
585 | if (! xbuf) |
586 | goto bad; | |
587 | ||
588 | *(U32*)xbuf = PL_collation_ix; | |
589 | xout = sizeof(PL_collation_ix); | |
590 | for (xin = 0; xin < len; ) { | |
591 | SSize_t xused; | |
592 | ||
593 | for (;;) { | |
594 | xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); | |
595 | if (xused == -1) | |
596 | goto bad; | |
eb160463 | 597 | if ((STRLEN)xused < xAlloc - xout) |
98994639 HS |
598 | break; |
599 | xAlloc = (2 * xAlloc) + 1; | |
600 | Renew(xbuf, xAlloc, char); | |
601 | if (! xbuf) | |
602 | goto bad; | |
603 | } | |
604 | ||
605 | xin += strlen(s + xin) + 1; | |
606 | xout += xused; | |
607 | ||
608 | /* Embedded NULs are understood but silently skipped | |
609 | * because they make no sense in locale collation. */ | |
610 | } | |
611 | ||
612 | xbuf[xout] = '\0'; | |
613 | *xlen = xout - sizeof(PL_collation_ix); | |
614 | return xbuf; | |
615 | ||
616 | bad: | |
617 | Safefree(xbuf); | |
618 | *xlen = 0; | |
619 | return NULL; | |
620 | } | |
621 | ||
622 | #endif /* USE_LOCALE_COLLATE */ | |
623 | ||
66610fdd RGS |
624 | /* |
625 | * Local variables: | |
626 | * c-indentation-style: bsd | |
627 | * c-basic-offset: 4 | |
628 | * indent-tabs-mode: t | |
629 | * End: | |
630 | * | |
37442d52 RGS |
631 | * ex: set ts=8 sts=4 sw=4 noet: |
632 | */ |