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4a655e50 | 1 | /* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
9361f762 MV |
2 | * |
3 | * This library is free software; you can redistribute it and/or | |
53befeb7 NJ |
4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
9361f762 | 7 | * |
53befeb7 NJ |
8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
9361f762 MV |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public | |
14 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
9361f762 MV |
17 | */ |
18 | ||
dbb605f5 | 19 | #ifdef HAVE_CONFIG_H |
9361f762 MV |
20 | # include <config.h> |
21 | #endif | |
22 | ||
f7439099 | 23 | #include <alloca.h> |
b89c4943 | 24 | |
9361f762 | 25 | #include "libguile/_scm.h" |
756e8a3a | 26 | #include "libguile/extensions.h" |
9361f762 MV |
27 | #include "libguile/feature.h" |
28 | #include "libguile/i18n.h" | |
29 | #include "libguile/strings.h" | |
b89c4943 | 30 | #include "libguile/chars.h" |
9361f762 | 31 | #include "libguile/dynwind.h" |
b89c4943 LC |
32 | #include "libguile/validate.h" |
33 | #include "libguile/values.h" | |
a2f00b9b | 34 | #include "libguile/threads.h" |
9361f762 | 35 | |
9361f762 | 36 | #include <locale.h> |
b89c4943 LC |
37 | #include <string.h> /* `strcoll ()' */ |
38 | #include <ctype.h> /* `toupper ()' et al. */ | |
39 | #include <errno.h> | |
5b878445 MG |
40 | #include <unicase.h> |
41 | #include <unistr.h> | |
9361f762 | 42 | |
b89c4943 | 43 | #if (defined HAVE_NEWLOCALE) && (defined HAVE_STRCOLL_L) |
a2f00b9b LC |
44 | /* The GNU thread-aware locale API is documented in ``Thread-Aware Locale |
45 | Model, a Proposal'', by Ulrich Drepper: | |
46 | ||
47 | http://people.redhat.com/drepper/tllocale.ps.gz | |
48 | ||
49 | It is now also implemented by Darwin: | |
50 | ||
51 | http://developer.apple.com/documentation/Darwin/Reference/ManPages/man3/newlocale.3.html | |
52 | ||
83fda470 LC |
53 | The whole API was eventually standardized in the ``Open Group Base |
54 | Specifications Issue 7'' (aka. "POSIX 2008"): | |
55 | ||
56 | http://www.opengroup.org/onlinepubs/9699919799/basedefs/locale.h.html */ | |
b89c4943 | 57 | # define USE_GNU_LOCALE_API |
9361f762 | 58 | #endif |
b89c4943 | 59 | |
a2f00b9b LC |
60 | #include "libguile/posix.h" /* for `scm_i_locale_mutex' */ |
61 | ||
56d288b8 | 62 | #ifdef HAVE_LANGINFO_H |
a2f00b9b | 63 | # include <langinfo.h> |
56d288b8 LC |
64 | #endif |
65 | #ifdef HAVE_NL_TYPES_H | |
a2f00b9b | 66 | # include <nl_types.h> |
9361f762 | 67 | #endif |
56d288b8 LC |
68 | #ifndef HAVE_NL_ITEM |
69 | /* Cygwin has <langinfo.h> but lacks <nl_types.h> and `nl_item'. */ | |
70 | typedef int nl_item; | |
71 | #endif | |
b89c4943 LC |
72 | |
73 | #ifndef HAVE_SETLOCALE | |
74 | static inline char * | |
75 | setlocale (int category, const char *name) | |
76 | { | |
77 | errno = ENOSYS; | |
78 | return NULL; | |
79 | } | |
9361f762 | 80 | #endif |
b89c4943 | 81 | |
a2f00b9b LC |
82 | /* Helper stringification macro. */ |
83 | #define SCM_I18N_STRINGIFY(_name) # _name | |
84 | ||
073167ef LC |
85 | /* Acquiring and releasing the locale lock. */ |
86 | ||
87 | static inline void | |
88 | lock_locale_mutex (void) | |
89 | { | |
90 | #ifdef HAVE_POSIX | |
91 | scm_i_pthread_mutex_lock (&scm_i_locale_mutex); | |
92 | #else | |
93 | #endif | |
94 | } | |
95 | ||
96 | static inline void | |
97 | unlock_locale_mutex (void) | |
98 | { | |
99 | #ifdef HAVE_POSIX | |
100 | scm_i_pthread_mutex_unlock (&scm_i_locale_mutex); | |
101 | #else | |
102 | #endif | |
103 | } | |
b89c4943 LC |
104 | |
105 | \f | |
106 | /* Locale objects, string and character collation, and other locale-dependent | |
107 | string operations. | |
108 | ||
109 | A large part of the code here deals with emulating glibc's reentrant | |
110 | locale API on non-GNU systems. The emulation is a bit "brute-force": | |
111 | Whenever a `-locale<?' procedure is passed a locale object, then: | |
112 | ||
a2f00b9b | 113 | 1. The `scm_i_locale_mutex' is locked. |
b89c4943 | 114 | 2. A series of `setlocale ()' call is performed to store the current |
a2f00b9b | 115 | locale for each category in an `scm_t_locale' object. |
b89c4943 LC |
116 | 3. A series of `setlocale ()' call is made to install each of the locale |
117 | categories of each of the base locales of each locale object, | |
118 | recursively, starting from the last locale object of the chain. | |
119 | 4. The settings captured in step (2) are restored. | |
a2f00b9b | 120 | 5. The `scm_i_locale_mutex' is released. |
b89c4943 | 121 | |
a2f00b9b | 122 | Hopefully, the X/Open standard will eventually make this hack useless. |
b89c4943 LC |
123 | |
124 | Note: We don't wrap glibc's `uselocale ()' call because it sets the locale | |
125 | of the current _thread_ (unlike `setlocale ()') and doing so would require | |
126 | maintaining per-thread locale information on non-GNU systems and always | |
127 | re-installing this locale upon locale-dependent calls. */ | |
128 | ||
129 | ||
a2f00b9b LC |
130 | /* Return the category mask corresponding to CAT. */ |
131 | #define SCM_LOCALE_CATEGORY_MASK(_cat) LC_ ## _cat ## _MASK | |
132 | ||
133 | ||
b89c4943 LC |
134 | #ifndef USE_GNU_LOCALE_API |
135 | ||
a2f00b9b LC |
136 | /* Provide the locale category masks as found in glibc. This must be kept in |
137 | sync with `locale-categories.h'. */ | |
b89c4943 | 138 | |
a2f00b9b LC |
139 | # define LC_CTYPE_MASK 1 |
140 | # define LC_COLLATE_MASK 2 | |
141 | # define LC_MESSAGES_MASK 4 | |
142 | # define LC_MONETARY_MASK 8 | |
143 | # define LC_NUMERIC_MASK 16 | |
144 | # define LC_TIME_MASK 32 | |
b89c4943 LC |
145 | |
146 | # ifdef LC_PAPER | |
a2f00b9b | 147 | # define LC_PAPER_MASK 64 |
b89c4943 LC |
148 | # else |
149 | # define LC_PAPER_MASK 0 | |
150 | # endif | |
151 | # ifdef LC_NAME | |
a2f00b9b | 152 | # define LC_NAME_MASK 128 |
b89c4943 LC |
153 | # else |
154 | # define LC_NAME_MASK 0 | |
155 | # endif | |
156 | # ifdef LC_ADDRESS | |
a2f00b9b | 157 | # define LC_ADDRESS_MASK 256 |
b89c4943 LC |
158 | # else |
159 | # define LC_ADDRESS_MASK 0 | |
160 | # endif | |
161 | # ifdef LC_TELEPHONE | |
a2f00b9b | 162 | # define LC_TELEPHONE_MASK 512 |
b89c4943 LC |
163 | # else |
164 | # define LC_TELEPHONE_MASK 0 | |
165 | # endif | |
166 | # ifdef LC_MEASUREMENT | |
a2f00b9b | 167 | # define LC_MEASUREMENT_MASK 1024 |
b89c4943 LC |
168 | # else |
169 | # define LC_MEASUREMENT_MASK 0 | |
170 | # endif | |
171 | # ifdef LC_IDENTIFICATION | |
a2f00b9b | 172 | # define LC_IDENTIFICATION_MASK 2048 |
b89c4943 LC |
173 | # else |
174 | # define LC_IDENTIFICATION_MASK 0 | |
175 | # endif | |
176 | ||
a2f00b9b LC |
177 | # define LC_ALL_MASK (LC_CTYPE_MASK \ |
178 | | LC_NUMERIC_MASK \ | |
179 | | LC_TIME_MASK \ | |
180 | | LC_COLLATE_MASK \ | |
181 | | LC_MONETARY_MASK \ | |
182 | | LC_MESSAGES_MASK \ | |
183 | | LC_PAPER_MASK \ | |
184 | | LC_NAME_MASK \ | |
185 | | LC_ADDRESS_MASK \ | |
186 | | LC_TELEPHONE_MASK \ | |
187 | | LC_MEASUREMENT_MASK \ | |
188 | | LC_IDENTIFICATION_MASK \ | |
b89c4943 LC |
189 | ) |
190 | ||
191 | /* Locale objects as returned by `make-locale' on non-GNU systems. */ | |
192 | typedef struct scm_locale | |
193 | { | |
194 | SCM base_locale; /* a `locale' object */ | |
195 | char *locale_name; | |
196 | int category_mask; | |
197 | } *scm_t_locale; | |
198 | ||
a2f00b9b LC |
199 | |
200 | /* Free the resources used by LOCALE. */ | |
201 | static inline void | |
202 | scm_i_locale_free (scm_t_locale locale) | |
203 | { | |
204 | free (locale->locale_name); | |
205 | locale->locale_name = NULL; | |
206 | } | |
207 | ||
208 | #else /* USE_GNU_LOCALE_API */ | |
b89c4943 LC |
209 | |
210 | /* Alias for glibc's locale type. */ | |
211 | typedef locale_t scm_t_locale; | |
212 | ||
a2f00b9b LC |
213 | #define scm_i_locale_free freelocale |
214 | ||
215 | #endif /* USE_GNU_LOCALE_API */ | |
216 | ||
217 | ||
218 | /* A locale object denoting the global locale. */ | |
219 | SCM_GLOBAL_VARIABLE (scm_global_locale, "%global-locale"); | |
220 | ||
b89c4943 LC |
221 | |
222 | /* Validate parameter ARG as a locale object and set C_LOCALE to the | |
223 | corresponding C locale object. */ | |
224 | #define SCM_VALIDATE_LOCALE_COPY(_pos, _arg, _c_locale) \ | |
225 | do \ | |
226 | { \ | |
227 | SCM_VALIDATE_SMOB ((_pos), (_arg), locale_smob_type); \ | |
228 | (_c_locale) = (scm_t_locale)SCM_SMOB_DATA (_arg); \ | |
229 | } \ | |
230 | while (0) | |
231 | ||
232 | /* Validate optional parameter ARG as either undefined or bound to a locale | |
233 | object. Set C_LOCALE to the corresponding C locale object or NULL. */ | |
234 | #define SCM_VALIDATE_OPTIONAL_LOCALE_COPY(_pos, _arg, _c_locale) \ | |
235 | do \ | |
236 | { \ | |
d223c3fc | 237 | if (!scm_is_eq ((_arg), SCM_UNDEFINED)) \ |
b89c4943 LC |
238 | SCM_VALIDATE_LOCALE_COPY (_pos, _arg, _c_locale); \ |
239 | else \ | |
240 | (_c_locale) = NULL; \ | |
241 | } \ | |
242 | while (0) | |
243 | ||
244 | ||
245 | SCM_SMOB (scm_tc16_locale_smob_type, "locale", 0); | |
246 | ||
247 | SCM_SMOB_FREE (scm_tc16_locale_smob_type, smob_locale_free, locale) | |
248 | { | |
249 | scm_t_locale c_locale; | |
250 | ||
a2f00b9b LC |
251 | c_locale = (scm_t_locale) SCM_SMOB_DATA (locale); |
252 | scm_i_locale_free (c_locale); | |
b89c4943 LC |
253 | |
254 | return 0; | |
255 | } | |
256 | ||
9361f762 | 257 | |
a2f00b9b | 258 | static void inline scm_locale_error (const char *, int) SCM_NORETURN; |
b89c4943 | 259 | |
a2f00b9b LC |
260 | /* Throw an exception corresponding to error ERR. */ |
261 | static void inline | |
262 | scm_locale_error (const char *func_name, int err) | |
263 | { | |
264 | scm_syserror_msg (func_name, | |
265 | "Failed to install locale", | |
266 | SCM_EOL, err); | |
b89c4943 | 267 | } |
b89c4943 LC |
268 | |
269 | ||
270 | \f | |
a2f00b9b LC |
271 | /* Emulating GNU's reentrant locale API. */ |
272 | #ifndef USE_GNU_LOCALE_API | |
b89c4943 LC |
273 | |
274 | ||
275 | /* Maximum number of chained locales (via `base_locale'). */ | |
276 | #define LOCALE_STACK_SIZE_MAX 256 | |
277 | ||
278 | typedef struct | |
279 | { | |
280 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) char * _name; | |
281 | #include "locale-categories.h" | |
282 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
283 | } scm_t_locale_settings; | |
284 | ||
285 | /* Fill out SETTINGS according to the current locale settings. On success | |
286 | zero is returned and SETTINGS is properly initialized. */ | |
287 | static int | |
288 | get_current_locale_settings (scm_t_locale_settings *settings) | |
289 | { | |
290 | const char *locale_name; | |
291 | ||
292 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
293 | { \ | |
294 | SCM_SYSCALL (locale_name = setlocale (LC_ ## _name, NULL)); \ | |
a2f00b9b | 295 | if (locale_name == NULL) \ |
b89c4943 LC |
296 | goto handle_error; \ |
297 | \ | |
298 | settings-> _name = strdup (locale_name); \ | |
299 | if (settings-> _name == NULL) \ | |
300 | goto handle_oom; \ | |
301 | } | |
302 | ||
303 | #include "locale-categories.h" | |
304 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
305 | ||
306 | return 0; | |
307 | ||
308 | handle_error: | |
a2f00b9b | 309 | return EINVAL; |
9361f762 | 310 | |
b89c4943 LC |
311 | handle_oom: |
312 | return ENOMEM; | |
313 | } | |
314 | ||
315 | /* Restore locale settings SETTINGS. On success, return zero. */ | |
316 | static int | |
317 | restore_locale_settings (const scm_t_locale_settings *settings) | |
318 | { | |
319 | const char *result; | |
320 | ||
321 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
322 | SCM_SYSCALL (result = setlocale (LC_ ## _name, settings-> _name)); \ | |
323 | if (result == NULL) \ | |
324 | goto handle_error; | |
325 | ||
326 | #include "locale-categories.h" | |
327 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
328 | ||
329 | return 0; | |
330 | ||
331 | handle_error: | |
a2f00b9b | 332 | return EINVAL; |
b89c4943 LC |
333 | } |
334 | ||
335 | /* Free memory associated with SETTINGS. */ | |
336 | static void | |
337 | free_locale_settings (scm_t_locale_settings *settings) | |
338 | { | |
339 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
340 | free (settings-> _name); \ | |
341 | settings->_name = NULL; | |
342 | #include "locale-categories.h" | |
343 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
344 | } | |
9361f762 | 345 | |
b89c4943 LC |
346 | /* Install the locale named LOCALE_NAME for all the categories listed in |
347 | CATEGORY_MASK. */ | |
348 | static int | |
349 | install_locale_categories (const char *locale_name, int category_mask) | |
350 | { | |
351 | const char *result; | |
9361f762 | 352 | |
b89c4943 | 353 | if (category_mask == LC_ALL_MASK) |
9361f762 | 354 | { |
b89c4943 LC |
355 | SCM_SYSCALL (result = setlocale (LC_ALL, locale_name)); |
356 | if (result == NULL) | |
357 | goto handle_error; | |
9361f762 MV |
358 | } |
359 | else | |
360 | { | |
b89c4943 | 361 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ |
a2f00b9b | 362 | if (category_mask & SCM_LOCALE_CATEGORY_MASK (_name)) \ |
b89c4943 LC |
363 | { \ |
364 | SCM_SYSCALL (result = setlocale (LC_ ## _name, locale_name)); \ | |
365 | if (result == NULL) \ | |
366 | goto handle_error; \ | |
367 | } | |
368 | #include "locale-categories.h" | |
369 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
370 | } | |
9361f762 | 371 | |
b89c4943 | 372 | return 0; |
9361f762 | 373 | |
b89c4943 | 374 | handle_error: |
a2f00b9b | 375 | return EINVAL; |
b89c4943 LC |
376 | } |
377 | ||
378 | /* Install LOCALE, recursively installing its base locales first. On | |
379 | success, zero is returned. */ | |
380 | static int | |
381 | install_locale (scm_t_locale locale) | |
382 | { | |
383 | scm_t_locale stack[LOCALE_STACK_SIZE_MAX]; | |
a2f00b9b | 384 | int category_mask = 0; |
b89c4943 LC |
385 | size_t stack_size = 0; |
386 | int stack_offset = 0; | |
387 | const char *result = NULL; | |
388 | ||
389 | /* Build up a locale stack by traversing the `base_locale' link. */ | |
390 | do | |
391 | { | |
392 | if (stack_size >= LOCALE_STACK_SIZE_MAX) | |
393 | /* We cannot use `scm_error ()' here because otherwise the locale | |
394 | mutex may remain locked. */ | |
395 | return EINVAL; | |
396 | ||
397 | stack[stack_size++] = locale; | |
398 | ||
a2f00b9b LC |
399 | /* Keep track of which categories have already been taken into |
400 | account. */ | |
401 | category_mask |= locale->category_mask; | |
402 | ||
e780c14f | 403 | if (!SCM_UNBNDP (locale->base_locale)) |
a2f00b9b | 404 | locale = (scm_t_locale) SCM_SMOB_DATA (locale->base_locale); |
9361f762 | 405 | else |
b89c4943 LC |
406 | locale = NULL; |
407 | } | |
a2f00b9b | 408 | while ((locale != NULL) && (category_mask != LC_ALL_MASK)); |
9361f762 | 409 | |
b89c4943 LC |
410 | /* Install the C locale to start from a pristine state. */ |
411 | SCM_SYSCALL (result = setlocale (LC_ALL, "C")); | |
412 | if (result == NULL) | |
413 | goto handle_error; | |
414 | ||
415 | /* Install the locales in reverse order. */ | |
416 | for (stack_offset = stack_size - 1; | |
417 | stack_offset >= 0; | |
418 | stack_offset--) | |
419 | { | |
420 | int err; | |
421 | scm_t_locale locale; | |
422 | ||
423 | locale = stack[stack_offset]; | |
424 | err = install_locale_categories (locale->locale_name, | |
425 | locale->category_mask); | |
426 | if (err) | |
427 | goto handle_error; | |
9361f762 MV |
428 | } |
429 | ||
b89c4943 | 430 | return 0; |
9361f762 | 431 | |
b89c4943 | 432 | handle_error: |
a2f00b9b | 433 | return EINVAL; |
9361f762 | 434 | } |
9361f762 | 435 | |
b89c4943 LC |
436 | /* Leave the locked locale section. */ |
437 | static inline void | |
438 | leave_locale_section (const scm_t_locale_settings *settings) | |
439 | { | |
440 | /* Restore the previous locale settings. */ | |
441 | (void)restore_locale_settings (settings); | |
442 | ||
073167ef | 443 | unlock_locale_mutex (); |
b89c4943 | 444 | } |
9361f762 | 445 | |
b89c4943 LC |
446 | /* Enter a locked locale section. */ |
447 | static inline int | |
448 | enter_locale_section (scm_t_locale locale, | |
449 | scm_t_locale_settings *prev_locale) | |
9361f762 | 450 | { |
b89c4943 LC |
451 | int err; |
452 | ||
073167ef | 453 | lock_locale_mutex (); |
b89c4943 LC |
454 | |
455 | err = get_current_locale_settings (prev_locale); | |
456 | if (err) | |
457 | { | |
073167ef | 458 | unlock_locale_mutex (); |
b89c4943 LC |
459 | return err; |
460 | } | |
9361f762 | 461 | |
b89c4943 LC |
462 | err = install_locale (locale); |
463 | if (err) | |
464 | { | |
465 | leave_locale_section (prev_locale); | |
466 | free_locale_settings (prev_locale); | |
467 | } | |
468 | ||
469 | return err; | |
470 | } | |
471 | ||
b89c4943 LC |
472 | /* Convenient macro to run STATEMENT in the locale context of C_LOCALE. */ |
473 | #define RUN_IN_LOCALE_SECTION(_c_locale, _statement) \ | |
474 | do \ | |
475 | { \ | |
476 | int lsec_err; \ | |
477 | scm_t_locale_settings lsec_prev_locale; \ | |
478 | \ | |
479 | lsec_err = enter_locale_section ((_c_locale), &lsec_prev_locale); \ | |
480 | if (lsec_err) \ | |
481 | scm_locale_error (FUNC_NAME, lsec_err); \ | |
482 | else \ | |
483 | { \ | |
484 | _statement ; \ | |
485 | \ | |
486 | leave_locale_section (&lsec_prev_locale); \ | |
487 | free_locale_settings (&lsec_prev_locale); \ | |
488 | } \ | |
489 | } \ | |
490 | while (0) | |
491 | ||
a2f00b9b LC |
492 | /* Convert the current locale settings into a locale SMOB. On success, zero |
493 | is returned and RESULT points to the new SMOB. Otherwise, an error is | |
494 | returned. */ | |
495 | static int | |
496 | get_current_locale (SCM *result) | |
497 | { | |
498 | int err = 0; | |
499 | scm_t_locale c_locale; | |
500 | const char *current_locale; | |
501 | ||
502 | c_locale = scm_gc_malloc (sizeof (* c_locale), "locale"); | |
503 | ||
504 | ||
073167ef | 505 | lock_locale_mutex (); |
a2f00b9b LC |
506 | |
507 | c_locale->category_mask = LC_ALL_MASK; | |
508 | c_locale->base_locale = SCM_UNDEFINED; | |
509 | ||
510 | current_locale = setlocale (LC_ALL, NULL); | |
511 | if (current_locale != NULL) | |
512 | { | |
513 | c_locale->locale_name = strdup (current_locale); | |
514 | if (c_locale->locale_name == NULL) | |
515 | err = ENOMEM; | |
516 | } | |
517 | else | |
518 | err = EINVAL; | |
519 | ||
073167ef | 520 | unlock_locale_mutex (); |
a2f00b9b LC |
521 | |
522 | if (err) | |
523 | scm_gc_free (c_locale, sizeof (* c_locale), "locale"); | |
524 | else | |
525 | SCM_NEWSMOB (*result, scm_tc16_locale_smob_type, c_locale); | |
526 | ||
527 | return err; | |
528 | } | |
529 | ||
5b878445 | 530 | #else /* USE_GNU_LOCALE_API */ |
a2f00b9b | 531 | |
5b878445 | 532 | /* Convenient macro to run STATEMENT in the locale context of C_LOCALE. */ |
12f0c3e5 LC |
533 | #define RUN_IN_LOCALE_SECTION(_c_locale, _statement) \ |
534 | do \ | |
535 | { \ | |
536 | scm_t_locale old_loc; \ | |
537 | \ | |
538 | old_loc = uselocale (_c_locale); \ | |
539 | _statement ; \ | |
540 | uselocale (old_loc); \ | |
541 | } \ | |
5b878445 MG |
542 | while (0) |
543 | ||
544 | ||
545 | #endif /* USE_GNU_LOCALE_API */ | |
9361f762 | 546 | |
a2f00b9b LC |
547 | |
548 | \f | |
549 | /* `make-locale' can take either category lists or single categories (the | |
550 | `LC_*' integer constants). */ | |
551 | #define SCM_LIST_OR_INTEGER_P(arg) \ | |
552 | (scm_is_integer (arg) || scm_is_true (scm_list_p (arg))) | |
553 | ||
554 | ||
555 | /* Return the category mask corresponding to CATEGORY (an `LC_' integer | |
556 | constant). */ | |
557 | static inline int | |
558 | category_to_category_mask (SCM category, | |
559 | const char *func_name, int pos) | |
560 | { | |
561 | int c_category; | |
562 | int c_category_mask; | |
563 | ||
564 | c_category = scm_to_int (category); | |
565 | ||
566 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
567 | case LC_ ## _name: \ | |
568 | c_category_mask = SCM_LOCALE_CATEGORY_MASK (_name); \ | |
569 | break; | |
570 | ||
571 | switch (c_category) | |
572 | { | |
573 | #include "locale-categories.h" | |
574 | ||
575 | case LC_ALL: | |
576 | c_category_mask = LC_ALL_MASK; | |
577 | break; | |
578 | ||
579 | default: | |
580 | scm_wrong_type_arg_msg (func_name, pos, category, | |
581 | "locale category"); | |
582 | } | |
583 | ||
584 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
585 | ||
586 | return c_category_mask; | |
587 | } | |
588 | ||
589 | /* Convert CATEGORIES, a list of locale categories or a single category (an | |
590 | integer), into a category mask. */ | |
591 | static int | |
592 | category_list_to_category_mask (SCM categories, | |
593 | const char *func_name, int pos) | |
594 | { | |
595 | int c_category_mask = 0; | |
596 | ||
597 | if (scm_is_integer (categories)) | |
598 | c_category_mask = category_to_category_mask (categories, | |
599 | func_name, pos); | |
600 | else | |
601 | for (; !scm_is_null (categories); categories = SCM_CDR (categories)) | |
602 | { | |
603 | SCM category = SCM_CAR (categories); | |
604 | ||
605 | c_category_mask |= | |
606 | category_to_category_mask (category, func_name, pos); | |
607 | } | |
608 | ||
609 | return c_category_mask; | |
610 | } | |
611 | ||
612 | ||
613 | SCM_DEFINE (scm_make_locale, "make-locale", 2, 1, 0, | |
614 | (SCM category_list, SCM locale_name, SCM base_locale), | |
615 | "Return a reference to a data structure representing a set of " | |
616 | "locale datasets. @var{category_list} should be either a list " | |
617 | "of locale categories or a single category as used with " | |
618 | "@code{setlocale} (@pxref{Locales, @code{setlocale}}) and " | |
619 | "@var{locale_name} should be the name of the locale considered " | |
620 | "(e.g., @code{\"sl_SI\"}). Optionally, if @code{base_locale} is " | |
621 | "passed, it should be a locale object denoting settings for " | |
622 | "categories not listed in @var{category_list}.") | |
623 | #define FUNC_NAME s_scm_make_locale | |
624 | { | |
625 | SCM locale = SCM_BOOL_F; | |
626 | int err = 0; | |
627 | int c_category_mask; | |
628 | char *c_locale_name; | |
629 | scm_t_locale c_base_locale, c_locale; | |
630 | ||
631 | SCM_MAKE_VALIDATE (1, category_list, LIST_OR_INTEGER_P); | |
632 | SCM_VALIDATE_STRING (2, locale_name); | |
633 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, base_locale, c_base_locale); | |
634 | ||
635 | c_category_mask = category_list_to_category_mask (category_list, | |
636 | FUNC_NAME, 1); | |
637 | c_locale_name = scm_to_locale_string (locale_name); | |
638 | ||
639 | #ifdef USE_GNU_LOCALE_API | |
640 | ||
641 | if (scm_is_eq (base_locale, SCM_VARIABLE_REF (scm_global_locale))) | |
c3b16a5d | 642 | c_base_locale = LC_GLOBAL_LOCALE; |
a2f00b9b | 643 | |
c3b16a5d | 644 | if (c_base_locale != (locale_t) 0) |
a2f00b9b LC |
645 | { |
646 | /* C_BASE_LOCALE is to be consumed by `newlocale ()' so it needs to be | |
647 | duplicated before. */ | |
648 | c_base_locale = duplocale (c_base_locale); | |
c3b16a5d | 649 | |
a2f00b9b LC |
650 | if (c_base_locale == (locale_t) 0) |
651 | { | |
652 | err = errno; | |
653 | goto fail; | |
654 | } | |
655 | } | |
656 | ||
657 | c_locale = newlocale (c_category_mask, c_locale_name, c_base_locale); | |
658 | ||
659 | free (c_locale_name); | |
660 | ||
661 | if (c_locale == (locale_t) 0) | |
662 | { | |
c3b16a5d | 663 | if (c_base_locale != (locale_t) 0) |
a2f00b9b | 664 | freelocale (c_base_locale); |
a2f00b9b LC |
665 | scm_locale_error (FUNC_NAME, errno); |
666 | } | |
667 | else | |
668 | SCM_NEWSMOB (locale, scm_tc16_locale_smob_type, c_locale); | |
669 | ||
670 | #else | |
671 | ||
672 | c_locale = scm_gc_malloc (sizeof (* c_locale), "locale"); | |
673 | ||
674 | c_locale->category_mask = c_category_mask; | |
675 | c_locale->locale_name = c_locale_name; | |
676 | ||
677 | if (scm_is_eq (base_locale, SCM_VARIABLE_REF (scm_global_locale))) | |
678 | { | |
679 | /* Get the current locale settings and turn them into a locale | |
680 | object. */ | |
681 | err = get_current_locale (&base_locale); | |
682 | if (err) | |
683 | goto fail; | |
684 | } | |
685 | ||
686 | c_locale->base_locale = base_locale; | |
687 | ||
688 | { | |
689 | /* Try out the new locale and raise an exception if it doesn't work. */ | |
690 | int err; | |
691 | scm_t_locale_settings prev_locale; | |
692 | ||
693 | err = enter_locale_section (c_locale, &prev_locale); | |
a2f00b9b LC |
694 | |
695 | if (err) | |
696 | goto fail; | |
697 | else | |
1445e449 LC |
698 | { |
699 | leave_locale_section (&prev_locale); | |
700 | SCM_NEWSMOB (locale, scm_tc16_locale_smob_type, c_locale); | |
701 | } | |
a2f00b9b LC |
702 | } |
703 | ||
704 | #endif | |
705 | ||
706 | return locale; | |
707 | ||
708 | fail: | |
709 | #ifndef USE_GNU_LOCALE_API | |
710 | scm_gc_free (c_locale, sizeof (* c_locale), "locale"); | |
711 | #endif | |
712 | free (c_locale_name); | |
713 | scm_locale_error (FUNC_NAME, err); | |
714 | ||
715 | return SCM_BOOL_F; | |
716 | } | |
717 | #undef FUNC_NAME | |
718 | ||
719 | SCM_DEFINE (scm_locale_p, "locale?", 1, 0, 0, | |
720 | (SCM obj), | |
721 | "Return true if @var{obj} is a locale object.") | |
722 | #define FUNC_NAME s_scm_locale_p | |
723 | { | |
724 | return scm_from_bool (SCM_SMOB_PREDICATE (scm_tc16_locale_smob_type, obj)); | |
725 | } | |
726 | #undef FUNC_NAME | |
727 | ||
728 | ||
b89c4943 | 729 | \f |
a2f00b9b LC |
730 | /* Locale-dependent string comparison. |
731 | ||
732 | A similar API can be found in MzScheme starting from version 200: | |
733 | http://download.plt-scheme.org/chronology/mzmr200alpha14.html . */ | |
734 | ||
df047aa2 LC |
735 | #define SCM_STRING_TO_U32_BUF(s1, c_s1) \ |
736 | do \ | |
737 | { \ | |
738 | if (scm_i_is_narrow_string (s1)) \ | |
739 | { \ | |
740 | size_t i, len; \ | |
741 | const char *buf = scm_i_string_chars (s1); \ | |
742 | \ | |
743 | len = scm_i_string_length (s1); \ | |
c291b588 | 744 | c_s1 = alloca (sizeof (scm_t_wchar) * (len + 1)); \ |
df047aa2 LC |
745 | \ |
746 | for (i = 0; i < len; i ++) \ | |
747 | c_s1[i] = (unsigned char ) buf[i]; \ | |
748 | c_s1[len] = 0; \ | |
749 | } \ | |
750 | else \ | |
751 | c_s1 = (scm_t_wchar *) scm_i_string_wide_chars (s1); \ | |
752 | } while (0) | |
753 | ||
754 | ||
755 | /* Compare UTF-32 strings according to LOCALE. Returns a negative value if | |
756 | S1 compares smaller than S2, a positive value if S1 compares larger than | |
757 | S2, or 0 if they compare equal. */ | |
b89c4943 | 758 | static inline int |
5b878445 | 759 | compare_u32_strings (SCM s1, SCM s2, SCM locale, const char *func_name) |
b89c4943 LC |
760 | #define FUNC_NAME func_name |
761 | { | |
762 | int result; | |
763 | scm_t_locale c_locale; | |
5b878445 MG |
764 | scm_t_wchar *c_s1, *c_s2; |
765 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, locale, c_locale); | |
766 | ||
767 | SCM_STRING_TO_U32_BUF (s1, c_s1); | |
768 | SCM_STRING_TO_U32_BUF (s2, c_s2); | |
769 | ||
770 | if (c_locale) | |
771 | RUN_IN_LOCALE_SECTION (c_locale, | |
772 | result = u32_strcoll ((const scm_t_uint32 *) c_s1, | |
773 | (const scm_t_uint32 *) c_s2)); | |
774 | else | |
cdf52ff0 LC |
775 | result = u32_strcoll ((const scm_t_uint32 *) c_s1, |
776 | (const scm_t_uint32 *) c_s2); | |
5b878445 | 777 | |
5b878445 MG |
778 | scm_remember_upto_here_2 (s1, s2); |
779 | scm_remember_upto_here (locale); | |
780 | return result; | |
781 | } | |
782 | #undef FUNC_NAME | |
783 | ||
aafb5062 MG |
784 | /* Return the current language of the locale. */ |
785 | static const char * | |
786 | locale_language () | |
787 | { | |
96c71c58 BH |
788 | /* Note: If the locale has been set with 'uselocale', uc_locale_language |
789 | from libunistring versions 0.9.1 and older will return the incorrect | |
790 | (non-thread-specific) locale. This is fixed in versions 0.9.2 and | |
791 | newer. */ | |
aafb5062 | 792 | return uc_locale_language (); |
aafb5062 MG |
793 | } |
794 | ||
5b878445 | 795 | static inline int |
aafb5062 | 796 | u32_locale_casecoll (const char *func_name, const scm_t_uint32 *c_s1, |
c543e41e LC |
797 | const scm_t_uint32 *c_s2, |
798 | int *result) | |
5b878445 | 799 | { |
c543e41e LC |
800 | /* Note: Since this is called from `RUN_IN_LOCALE_SECTION', it must note |
801 | make any non-local exit. */ | |
5b878445 | 802 | |
c543e41e | 803 | int ret; |
aafb5062 | 804 | const char *loc = locale_language (); |
5b878445 | 805 | |
aafb5062 | 806 | ret = u32_casecoll (c_s1, u32_strlen (c_s1), |
5b878445 | 807 | c_s2, u32_strlen (c_s2), |
c543e41e | 808 | loc, UNINORM_NFC, result); |
5b878445 | 809 | |
c543e41e | 810 | return ret == 0 ? ret : errno; |
5b878445 MG |
811 | } |
812 | ||
813 | static inline int | |
814 | compare_u32_strings_ci (SCM s1, SCM s2, SCM locale, const char *func_name) | |
815 | #define FUNC_NAME func_name | |
816 | { | |
c543e41e | 817 | int result, ret = 0; |
5b878445 MG |
818 | scm_t_locale c_locale; |
819 | scm_t_wchar *c_s1, *c_s2; | |
b89c4943 | 820 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, locale, c_locale); |
9361f762 | 821 | |
5b878445 MG |
822 | SCM_STRING_TO_U32_BUF (s1, c_s1); |
823 | SCM_STRING_TO_U32_BUF (s2, c_s2); | |
824 | ||
b89c4943 | 825 | if (c_locale) |
cdf52ff0 LC |
826 | RUN_IN_LOCALE_SECTION |
827 | (c_locale, | |
c543e41e | 828 | ret = u32_locale_casecoll (func_name, |
cdf52ff0 | 829 | (const scm_t_uint32 *) c_s1, |
c543e41e LC |
830 | (const scm_t_uint32 *) c_s2, |
831 | &result)); | |
832 | else | |
833 | ret = u32_locale_casecoll (func_name, | |
834 | (const scm_t_uint32 *) c_s1, | |
835 | (const scm_t_uint32 *) c_s2, | |
836 | &result); | |
837 | ||
838 | if (SCM_UNLIKELY (ret != 0)) | |
839 | { | |
840 | errno = ret; | |
841 | scm_syserror (FUNC_NAME); | |
842 | } | |
b89c4943 | 843 | |
5b878445 MG |
844 | scm_remember_upto_here_2 (s1, s2); |
845 | scm_remember_upto_here (locale); | |
b89c4943 LC |
846 | |
847 | return result; | |
848 | } | |
849 | #undef FUNC_NAME | |
850 | ||
851 | /* Store into DST an upper-case version of SRC. */ | |
852 | static inline void | |
853 | str_upcase (register char *dst, register const char *src) | |
854 | { | |
855 | for (; *src != '\0'; src++, dst++) | |
4e641322 | 856 | *dst = toupper ((int) *src); |
b89c4943 LC |
857 | *dst = '\0'; |
858 | } | |
859 | ||
860 | static inline void | |
861 | str_downcase (register char *dst, register const char *src) | |
862 | { | |
863 | for (; *src != '\0'; src++, dst++) | |
4e641322 | 864 | *dst = tolower ((int) *src); |
b89c4943 LC |
865 | *dst = '\0'; |
866 | } | |
867 | ||
868 | #ifdef USE_GNU_LOCALE_API | |
869 | static inline void | |
870 | str_upcase_l (register char *dst, register const char *src, | |
871 | scm_t_locale locale) | |
872 | { | |
873 | for (; *src != '\0'; src++, dst++) | |
874 | *dst = toupper_l (*src, locale); | |
875 | *dst = '\0'; | |
876 | } | |
877 | ||
878 | static inline void | |
879 | str_downcase_l (register char *dst, register const char *src, | |
880 | scm_t_locale locale) | |
881 | { | |
882 | for (; *src != '\0'; src++, dst++) | |
883 | *dst = tolower_l (*src, locale); | |
884 | *dst = '\0'; | |
885 | } | |
886 | #endif | |
887 | ||
888 | ||
b89c4943 LC |
889 | SCM_DEFINE (scm_string_locale_lt, "string-locale<?", 2, 1, 0, |
890 | (SCM s1, SCM s2, SCM locale), | |
891 | "Compare strings @var{s1} and @var{s2} in a locale-dependent way." | |
892 | "If @var{locale} is provided, it should be locale object (as " | |
893 | "returned by @code{make-locale}) and will be used to perform the " | |
894 | "comparison; otherwise, the current system locale is used.") | |
895 | #define FUNC_NAME s_scm_string_locale_lt | |
9361f762 | 896 | { |
b89c4943 | 897 | int result; |
9361f762 | 898 | |
b89c4943 LC |
899 | SCM_VALIDATE_STRING (1, s1); |
900 | SCM_VALIDATE_STRING (2, s2); | |
9361f762 | 901 | |
5b878445 | 902 | result = compare_u32_strings (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
903 | |
904 | return scm_from_bool (result < 0); | |
905 | } | |
906 | #undef FUNC_NAME | |
907 | ||
908 | SCM_DEFINE (scm_string_locale_gt, "string-locale>?", 2, 1, 0, | |
909 | (SCM s1, SCM s2, SCM locale), | |
910 | "Compare strings @var{s1} and @var{s2} in a locale-dependent way." | |
911 | "If @var{locale} is provided, it should be locale object (as " | |
912 | "returned by @code{make-locale}) and will be used to perform the " | |
913 | "comparison; otherwise, the current system locale is used.") | |
914 | #define FUNC_NAME s_scm_string_locale_gt | |
915 | { | |
916 | int result; | |
b89c4943 LC |
917 | |
918 | SCM_VALIDATE_STRING (1, s1); | |
919 | SCM_VALIDATE_STRING (2, s2); | |
920 | ||
5b878445 | 921 | result = compare_u32_strings (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
922 | |
923 | return scm_from_bool (result > 0); | |
924 | } | |
925 | #undef FUNC_NAME | |
926 | ||
927 | SCM_DEFINE (scm_string_locale_ci_lt, "string-locale-ci<?", 2, 1, 0, | |
928 | (SCM s1, SCM s2, SCM locale), | |
929 | "Compare strings @var{s1} and @var{s2} in a case-insensitive, " | |
930 | "and locale-dependent way. If @var{locale} is provided, it " | |
931 | "should be locale object (as returned by @code{make-locale}) " | |
932 | "and will be used to perform the comparison; otherwise, the " | |
933 | "current system locale is used.") | |
934 | #define FUNC_NAME s_scm_string_locale_ci_lt | |
935 | { | |
936 | int result; | |
b89c4943 LC |
937 | |
938 | SCM_VALIDATE_STRING (1, s1); | |
939 | SCM_VALIDATE_STRING (2, s2); | |
940 | ||
5b878445 | 941 | result = compare_u32_strings_ci (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
942 | |
943 | return scm_from_bool (result < 0); | |
944 | } | |
945 | #undef FUNC_NAME | |
946 | ||
947 | SCM_DEFINE (scm_string_locale_ci_gt, "string-locale-ci>?", 2, 1, 0, | |
948 | (SCM s1, SCM s2, SCM locale), | |
949 | "Compare strings @var{s1} and @var{s2} in a case-insensitive, " | |
950 | "and locale-dependent way. If @var{locale} is provided, it " | |
951 | "should be locale object (as returned by @code{make-locale}) " | |
952 | "and will be used to perform the comparison; otherwise, the " | |
953 | "current system locale is used.") | |
954 | #define FUNC_NAME s_scm_string_locale_ci_gt | |
955 | { | |
956 | int result; | |
b89c4943 LC |
957 | |
958 | SCM_VALIDATE_STRING (1, s1); | |
959 | SCM_VALIDATE_STRING (2, s2); | |
960 | ||
5b878445 | 961 | result = compare_u32_strings_ci (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
962 | |
963 | return scm_from_bool (result > 0); | |
964 | } | |
965 | #undef FUNC_NAME | |
966 | ||
967 | SCM_DEFINE (scm_string_locale_ci_eq, "string-locale-ci=?", 2, 1, 0, | |
968 | (SCM s1, SCM s2, SCM locale), | |
969 | "Compare strings @var{s1} and @var{s2} in a case-insensitive, " | |
970 | "and locale-dependent way. If @var{locale} is provided, it " | |
971 | "should be locale object (as returned by @code{make-locale}) " | |
972 | "and will be used to perform the comparison; otherwise, the " | |
973 | "current system locale is used.") | |
974 | #define FUNC_NAME s_scm_string_locale_ci_eq | |
975 | { | |
976 | int result; | |
b89c4943 LC |
977 | |
978 | SCM_VALIDATE_STRING (1, s1); | |
979 | SCM_VALIDATE_STRING (2, s2); | |
980 | ||
5b878445 | 981 | result = compare_u32_strings_ci (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
982 | |
983 | return scm_from_bool (result == 0); | |
984 | } | |
985 | #undef FUNC_NAME | |
986 | ||
987 | ||
988 | SCM_DEFINE (scm_char_locale_lt, "char-locale<?", 2, 1, 0, | |
989 | (SCM c1, SCM c2, SCM locale), | |
990 | "Return true if character @var{c1} is lower than @var{c2} " | |
991 | "according to @var{locale} or to the current locale.") | |
992 | #define FUNC_NAME s_scm_char_locale_lt | |
993 | { | |
5b878445 | 994 | int result; |
b89c4943 LC |
995 | |
996 | SCM_VALIDATE_CHAR (1, c1); | |
997 | SCM_VALIDATE_CHAR (2, c2); | |
998 | ||
5b878445 MG |
999 | result = compare_u32_strings (scm_string (scm_list_1 (c1)), |
1000 | scm_string (scm_list_1 (c2)), | |
1001 | locale, FUNC_NAME); | |
b89c4943 | 1002 | |
5b878445 | 1003 | return scm_from_bool (result < 0); |
b89c4943 LC |
1004 | } |
1005 | #undef FUNC_NAME | |
1006 | ||
1007 | SCM_DEFINE (scm_char_locale_gt, "char-locale>?", 2, 1, 0, | |
1008 | (SCM c1, SCM c2, SCM locale), | |
1009 | "Return true if character @var{c1} is greater than @var{c2} " | |
1010 | "according to @var{locale} or to the current locale.") | |
1011 | #define FUNC_NAME s_scm_char_locale_gt | |
1012 | { | |
5b878445 | 1013 | int result; |
b89c4943 LC |
1014 | |
1015 | SCM_VALIDATE_CHAR (1, c1); | |
1016 | SCM_VALIDATE_CHAR (2, c2); | |
1017 | ||
5b878445 MG |
1018 | result = compare_u32_strings (scm_string (scm_list_1 (c1)), |
1019 | scm_string (scm_list_1 (c2)), | |
1020 | locale, FUNC_NAME); | |
b89c4943 | 1021 | |
5b878445 | 1022 | return scm_from_bool (result > 0); |
b89c4943 LC |
1023 | } |
1024 | #undef FUNC_NAME | |
1025 | ||
1026 | SCM_DEFINE (scm_char_locale_ci_lt, "char-locale-ci<?", 2, 1, 0, | |
1027 | (SCM c1, SCM c2, SCM locale), | |
1028 | "Return true if character @var{c1} is lower than @var{c2}, " | |
1029 | "in a case insensitive way according to @var{locale} or to " | |
1030 | "the current locale.") | |
1031 | #define FUNC_NAME s_scm_char_locale_ci_lt | |
1032 | { | |
1033 | int result; | |
b89c4943 LC |
1034 | |
1035 | SCM_VALIDATE_CHAR (1, c1); | |
1036 | SCM_VALIDATE_CHAR (2, c2); | |
1037 | ||
5b878445 MG |
1038 | result = compare_u32_strings_ci (scm_string (scm_list_1 (c1)), |
1039 | scm_string (scm_list_1 (c2)), | |
1040 | locale, FUNC_NAME); | |
b89c4943 LC |
1041 | |
1042 | return scm_from_bool (result < 0); | |
1043 | } | |
1044 | #undef FUNC_NAME | |
1045 | ||
1046 | SCM_DEFINE (scm_char_locale_ci_gt, "char-locale-ci>?", 2, 1, 0, | |
1047 | (SCM c1, SCM c2, SCM locale), | |
1048 | "Return true if character @var{c1} is greater than @var{c2}, " | |
1049 | "in a case insensitive way according to @var{locale} or to " | |
1050 | "the current locale.") | |
1051 | #define FUNC_NAME s_scm_char_locale_ci_gt | |
1052 | { | |
1053 | int result; | |
b89c4943 LC |
1054 | |
1055 | SCM_VALIDATE_CHAR (1, c1); | |
1056 | SCM_VALIDATE_CHAR (2, c2); | |
1057 | ||
5b878445 MG |
1058 | result = compare_u32_strings_ci (scm_string (scm_list_1 (c1)), |
1059 | scm_string (scm_list_1 (c2)), | |
1060 | locale, FUNC_NAME); | |
b89c4943 LC |
1061 | |
1062 | return scm_from_bool (result > 0); | |
1063 | } | |
1064 | #undef FUNC_NAME | |
1065 | ||
1066 | SCM_DEFINE (scm_char_locale_ci_eq, "char-locale-ci=?", 2, 1, 0, | |
1067 | (SCM c1, SCM c2, SCM locale), | |
1068 | "Return true if character @var{c1} is equal to @var{c2}, " | |
1069 | "in a case insensitive way according to @var{locale} or to " | |
1070 | "the current locale.") | |
1071 | #define FUNC_NAME s_scm_char_locale_ci_eq | |
1072 | { | |
1073 | int result; | |
b89c4943 LC |
1074 | |
1075 | SCM_VALIDATE_CHAR (1, c1); | |
1076 | SCM_VALIDATE_CHAR (2, c2); | |
1077 | ||
5b878445 MG |
1078 | result = compare_u32_strings_ci (scm_string (scm_list_1 (c1)), |
1079 | scm_string (scm_list_1 (c2)), | |
1080 | locale, FUNC_NAME); | |
b89c4943 LC |
1081 | |
1082 | return scm_from_bool (result == 0); | |
1083 | } | |
1084 | #undef FUNC_NAME | |
1085 | ||
1086 | ||
1087 | \f | |
1088 | /* Locale-dependent alphabetic character mapping. */ | |
1089 | ||
27f3413e MG |
1090 | static inline int |
1091 | u32_locale_tocase (const scm_t_uint32 *c_s1, size_t len, | |
1092 | scm_t_uint32 **p_c_s2, size_t * p_len2, | |
1093 | scm_t_uint32 *(*func) (const scm_t_uint32 *, size_t, | |
1094 | const char *, uninorm_t, | |
1095 | scm_t_uint32 *, size_t *)) | |
1096 | { | |
1097 | /* Note: Since this is called from `RUN_IN_LOCALE_SECTION', it must not | |
1098 | make any non-local exit. */ | |
1099 | ||
1100 | scm_t_uint32 *ret; | |
aafb5062 | 1101 | const char *loc = locale_language (); |
27f3413e MG |
1102 | |
1103 | /* The first NULL here indicates that no NFC or NFKC normalization | |
1104 | is done. The second NULL means the return buffer is | |
1105 | malloc'ed here. */ | |
1106 | ret = func (c_s1, len, loc, NULL, NULL, p_len2); | |
1107 | ||
1108 | if (ret == NULL) | |
1109 | { | |
2c48e4d5 | 1110 | *p_c_s2 = (scm_t_uint32 *) NULL; |
27f3413e MG |
1111 | *p_len2 = 0; |
1112 | return errno; | |
1113 | } | |
1114 | *p_c_s2 = ret; | |
aafb5062 | 1115 | |
27f3413e MG |
1116 | return 0; |
1117 | } | |
1118 | ||
1119 | ||
820f33aa JG |
1120 | static SCM |
1121 | chr_to_case (SCM chr, scm_t_locale c_locale, | |
1122 | scm_t_uint32 *(*func) (const scm_t_uint32 *, size_t, const char *, | |
1123 | uninorm_t, scm_t_uint32 *, size_t *), | |
44d3d111 | 1124 | const char *func_name, |
820f33aa | 1125 | int *err) |
44d3d111 | 1126 | #define FUNC_NAME func_name |
b89c4943 | 1127 | { |
27f3413e | 1128 | int ret; |
03976fee | 1129 | scm_t_uint32 c; |
820f33aa JG |
1130 | scm_t_uint32 *convbuf; |
1131 | size_t convlen; | |
03976fee | 1132 | SCM convchar; |
b89c4943 | 1133 | |
03976fee | 1134 | c = SCM_CHAR (chr); |
27f3413e | 1135 | |
b89c4943 | 1136 | if (c_locale != NULL) |
27f3413e | 1137 | RUN_IN_LOCALE_SECTION (c_locale, ret = |
03976fee | 1138 | u32_locale_tocase (&c, 1, &convbuf, &convlen, func)); |
27f3413e MG |
1139 | else |
1140 | ret = | |
03976fee | 1141 | u32_locale_tocase (&c, 1, &convbuf, &convlen, func); |
27f3413e MG |
1142 | |
1143 | if (SCM_UNLIKELY (ret != 0)) | |
9361f762 | 1144 | { |
820f33aa | 1145 | *err = ret; |
4d40bea6 | 1146 | return SCM_BOOL_F; |
9361f762 | 1147 | } |
27f3413e | 1148 | |
820f33aa JG |
1149 | if (convlen == 1) |
1150 | convchar = SCM_MAKE_CHAR ((scm_t_wchar) convbuf[0]); | |
b89c4943 | 1151 | else |
820f33aa JG |
1152 | convchar = chr; |
1153 | free (convbuf); | |
1154 | ||
1155 | return convchar; | |
1156 | } | |
44d3d111 | 1157 | #undef FUNC_NAME |
820f33aa JG |
1158 | |
1159 | SCM_DEFINE (scm_char_locale_downcase, "char-locale-downcase", 1, 1, 0, | |
1160 | (SCM chr, SCM locale), | |
1161 | "Return the lowercase character that corresponds to @var{chr} " | |
1162 | "according to either @var{locale} or the current locale.") | |
1163 | #define FUNC_NAME s_scm_char_locale_downcase | |
1164 | { | |
1165 | scm_t_locale c_locale; | |
1166 | SCM ret; | |
1167 | int err = 0; | |
1168 | ||
1169 | SCM_VALIDATE_CHAR (1, chr); | |
1170 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
9361f762 | 1171 | |
44d3d111 | 1172 | ret = chr_to_case (chr, c_locale, u32_tolower, FUNC_NAME, &err); |
820f33aa JG |
1173 | |
1174 | if (err != 0) | |
1175 | { | |
1176 | errno = err; | |
1177 | scm_syserror (FUNC_NAME); | |
1178 | } | |
1179 | return ret; | |
9361f762 MV |
1180 | } |
1181 | #undef FUNC_NAME | |
1182 | ||
b89c4943 LC |
1183 | SCM_DEFINE (scm_char_locale_upcase, "char-locale-upcase", 1, 1, 0, |
1184 | (SCM chr, SCM locale), | |
1185 | "Return the uppercase character that corresponds to @var{chr} " | |
1186 | "according to either @var{locale} or the current locale.") | |
1187 | #define FUNC_NAME s_scm_char_locale_upcase | |
9361f762 | 1188 | { |
b89c4943 | 1189 | scm_t_locale c_locale; |
820f33aa JG |
1190 | SCM ret; |
1191 | int err = 0; | |
b89c4943 LC |
1192 | |
1193 | SCM_VALIDATE_CHAR (1, chr); | |
b89c4943 | 1194 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); |
9361f762 | 1195 | |
44d3d111 | 1196 | ret = chr_to_case (chr, c_locale, u32_toupper, FUNC_NAME, &err); |
27f3413e | 1197 | |
820f33aa JG |
1198 | if (err != 0) |
1199 | { | |
1200 | errno = err; | |
1201 | scm_syserror (FUNC_NAME); | |
1202 | } | |
1203 | return ret; | |
1204 | } | |
1205 | #undef FUNC_NAME | |
27f3413e | 1206 | |
820f33aa JG |
1207 | SCM_DEFINE (scm_char_locale_titlecase, "char-locale-titlecase", 1, 1, 0, |
1208 | (SCM chr, SCM locale), | |
1209 | "Return the titlecase character that corresponds to @var{chr} " | |
1210 | "according to either @var{locale} or the current locale.") | |
1211 | #define FUNC_NAME s_scm_char_locale_titlecase | |
1212 | { | |
1213 | scm_t_locale c_locale; | |
1214 | SCM ret; | |
1215 | int err = 0; | |
1216 | ||
1217 | SCM_VALIDATE_CHAR (1, chr); | |
1218 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
1219 | ||
44d3d111 | 1220 | ret = chr_to_case (chr, c_locale, u32_totitle, FUNC_NAME, &err); |
820f33aa JG |
1221 | |
1222 | if (err != 0) | |
b89c4943 | 1223 | { |
820f33aa | 1224 | errno = err; |
27f3413e | 1225 | scm_syserror (FUNC_NAME); |
b89c4943 | 1226 | } |
820f33aa | 1227 | return ret; |
b89c4943 LC |
1228 | } |
1229 | #undef FUNC_NAME | |
1230 | ||
820f33aa JG |
1231 | static SCM |
1232 | str_to_case (SCM str, scm_t_locale c_locale, | |
1233 | scm_t_uint32 *(*func) (const scm_t_uint32 *, size_t, const char *, | |
1234 | uninorm_t, scm_t_uint32 *, size_t *), | |
44d3d111 | 1235 | const char *func_name, |
820f33aa | 1236 | int *err) |
44d3d111 | 1237 | #define FUNC_NAME func_name |
b89c4943 | 1238 | { |
2c48e4d5 | 1239 | scm_t_wchar *c_str, *c_buf; |
820f33aa JG |
1240 | scm_t_uint32 *c_convstr; |
1241 | size_t len, convlen; | |
27f3413e | 1242 | int ret; |
820f33aa | 1243 | SCM convstr; |
b89c4943 | 1244 | |
27f3413e MG |
1245 | len = scm_i_string_length (str); |
1246 | if (len == 0) | |
1247 | return scm_nullstr; | |
1248 | SCM_STRING_TO_U32_BUF (str, c_str); | |
b89c4943 LC |
1249 | |
1250 | if (c_locale) | |
27f3413e MG |
1251 | RUN_IN_LOCALE_SECTION (c_locale, ret = |
1252 | u32_locale_tocase ((scm_t_uint32 *) c_str, len, | |
820f33aa JG |
1253 | &c_convstr, |
1254 | &convlen, func)); | |
b89c4943 | 1255 | else |
27f3413e MG |
1256 | ret = |
1257 | u32_locale_tocase ((scm_t_uint32 *) c_str, len, | |
820f33aa | 1258 | &c_convstr, &convlen, func); |
b89c4943 LC |
1259 | |
1260 | scm_remember_upto_here (str); | |
1261 | ||
27f3413e MG |
1262 | if (SCM_UNLIKELY (ret != 0)) |
1263 | { | |
820f33aa | 1264 | *err = ret; |
4d40bea6 | 1265 | return SCM_BOOL_F; |
27f3413e MG |
1266 | } |
1267 | ||
190d4b0d | 1268 | convstr = scm_i_make_wide_string (convlen, &c_buf, 0); |
820f33aa JG |
1269 | memcpy (c_buf, c_convstr, convlen * sizeof (scm_t_wchar)); |
1270 | free (c_convstr); | |
27f3413e | 1271 | |
820f33aa | 1272 | scm_i_try_narrow_string (convstr); |
27f3413e | 1273 | |
820f33aa JG |
1274 | return convstr; |
1275 | } | |
44d3d111 | 1276 | #undef FUNC_NAME |
820f33aa JG |
1277 | |
1278 | SCM_DEFINE (scm_string_locale_upcase, "string-locale-upcase", 1, 1, 0, | |
1279 | (SCM str, SCM locale), | |
1280 | "Return a new string that is the uppercase version of " | |
1281 | "@var{str} according to either @var{locale} or the current " | |
1282 | "locale.") | |
1283 | #define FUNC_NAME s_scm_string_locale_upcase | |
1284 | { | |
1285 | scm_t_locale c_locale; | |
1286 | SCM ret; | |
1287 | int err = 0; | |
1288 | ||
1289 | SCM_VALIDATE_STRING (1, str); | |
1290 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
1291 | ||
44d3d111 | 1292 | ret = str_to_case (str, c_locale, u32_toupper, FUNC_NAME, &err); |
820f33aa JG |
1293 | |
1294 | if (err != 0) | |
1295 | { | |
1296 | errno = err; | |
1297 | scm_syserror (FUNC_NAME); | |
1298 | } | |
1299 | return ret; | |
b89c4943 LC |
1300 | } |
1301 | #undef FUNC_NAME | |
9361f762 | 1302 | |
b89c4943 LC |
1303 | SCM_DEFINE (scm_string_locale_downcase, "string-locale-downcase", 1, 1, 0, |
1304 | (SCM str, SCM locale), | |
1305 | "Return a new string that is the down-case version of " | |
1306 | "@var{str} according to either @var{locale} or the current " | |
1307 | "locale.") | |
1308 | #define FUNC_NAME s_scm_string_locale_downcase | |
1309 | { | |
b89c4943 | 1310 | scm_t_locale c_locale; |
820f33aa JG |
1311 | SCM ret; |
1312 | int err = 0; | |
b89c4943 LC |
1313 | |
1314 | SCM_VALIDATE_STRING (1, str); | |
1315 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
9361f762 | 1316 | |
44d3d111 | 1317 | ret = str_to_case (str, c_locale, u32_tolower, FUNC_NAME, &err); |
9361f762 | 1318 | |
820f33aa | 1319 | if (err != 0) |
27f3413e | 1320 | { |
820f33aa | 1321 | errno = err; |
27f3413e MG |
1322 | scm_syserror (FUNC_NAME); |
1323 | } | |
820f33aa JG |
1324 | return ret; |
1325 | } | |
1326 | #undef FUNC_NAME | |
1327 | ||
1328 | SCM_DEFINE (scm_string_locale_titlecase, "string-locale-titlecase", 1, 1, 0, | |
1329 | (SCM str, SCM locale), | |
1330 | "Return a new string that is the title-case version of " | |
1331 | "@var{str} according to either @var{locale} or the current " | |
1332 | "locale.") | |
1333 | #define FUNC_NAME s_scm_string_locale_titlecase | |
1334 | { | |
1335 | scm_t_locale c_locale; | |
1336 | SCM ret; | |
1337 | int err = 0; | |
27f3413e | 1338 | |
820f33aa JG |
1339 | SCM_VALIDATE_STRING (1, str); |
1340 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
27f3413e | 1341 | |
44d3d111 | 1342 | ret = str_to_case (str, c_locale, u32_totitle, FUNC_NAME, &err); |
27f3413e | 1343 | |
820f33aa JG |
1344 | if (err != 0) |
1345 | { | |
1346 | errno = err; | |
1347 | scm_syserror (FUNC_NAME); | |
1348 | } | |
1349 | return ret; | |
9361f762 MV |
1350 | } |
1351 | #undef FUNC_NAME | |
1352 | ||
b89c4943 LC |
1353 | /* Note: We don't provide mutative versions of `string-locale-(up|down)case' |
1354 | because, in some languages, a single downcase character maps to a couple | |
1355 | of uppercase characters. Read the SRFI-13 document for a detailed | |
1356 | discussion about this. */ | |
1357 | ||
1358 | ||
1359 | \f | |
1360 | /* Locale-dependent number parsing. */ | |
1361 | ||
1362 | SCM_DEFINE (scm_locale_string_to_integer, "locale-string->integer", | |
1363 | 1, 2, 0, (SCM str, SCM base, SCM locale), | |
1364 | "Convert string @var{str} into an integer according to either " | |
1365 | "@var{locale} (a locale object as returned by @code{make-locale}) " | |
1366 | "or the current process locale. Return two values: an integer " | |
1367 | "(on success) or @code{#f}, and the number of characters read " | |
1368 | "from @var{str} (@code{0} on failure).") | |
1369 | #define FUNC_NAME s_scm_locale_string_to_integer | |
9361f762 | 1370 | { |
9361f762 | 1371 | SCM result; |
b89c4943 LC |
1372 | long c_result; |
1373 | int c_base; | |
1374 | const char *c_str; | |
1375 | char *c_endptr; | |
1376 | scm_t_locale c_locale; | |
9361f762 | 1377 | |
b89c4943 LC |
1378 | SCM_VALIDATE_STRING (1, str); |
1379 | c_str = scm_i_string_chars (str); | |
9361f762 | 1380 | |
d223c3fc | 1381 | if (!scm_is_eq (base, SCM_UNDEFINED)) |
b89c4943 | 1382 | SCM_VALIDATE_INT_COPY (2, base, c_base); |
9361f762 | 1383 | else |
b89c4943 LC |
1384 | c_base = 10; |
1385 | ||
1386 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, locale, c_locale); | |
1387 | ||
1388 | if (c_locale != NULL) | |
9361f762 | 1389 | { |
b89c4943 LC |
1390 | #ifdef USE_GNU_LOCALE_API |
1391 | c_result = strtol_l (c_str, &c_endptr, c_base, c_locale); | |
1392 | #else | |
1393 | RUN_IN_LOCALE_SECTION (c_locale, | |
1394 | c_result = strtol (c_str, &c_endptr, c_base)); | |
1395 | #endif | |
9361f762 | 1396 | } |
b89c4943 LC |
1397 | else |
1398 | c_result = strtol (c_str, &c_endptr, c_base); | |
1399 | ||
1400 | scm_remember_upto_here (str); | |
1401 | ||
1402 | if (c_endptr == c_str) | |
1403 | result = SCM_BOOL_F; | |
1404 | else | |
1405 | result = scm_from_long (c_result); | |
1406 | ||
1407 | return (scm_values (scm_list_2 (result, scm_from_long (c_endptr - c_str)))); | |
1408 | } | |
1409 | #undef FUNC_NAME | |
1410 | ||
1411 | SCM_DEFINE (scm_locale_string_to_inexact, "locale-string->inexact", | |
1412 | 1, 1, 0, (SCM str, SCM locale), | |
1413 | "Convert string @var{str} into an inexact number according to " | |
1414 | "either @var{locale} (a locale object as returned by " | |
1415 | "@code{make-locale}) or the current process locale. Return " | |
1416 | "two values: an inexact number (on success) or @code{#f}, and " | |
1417 | "the number of characters read from @var{str} (@code{0} on " | |
1418 | "failure).") | |
1419 | #define FUNC_NAME s_scm_locale_string_to_inexact | |
1420 | { | |
1421 | SCM result; | |
1422 | double c_result; | |
1423 | const char *c_str; | |
1424 | char *c_endptr; | |
1425 | scm_t_locale c_locale; | |
9361f762 | 1426 | |
b89c4943 LC |
1427 | SCM_VALIDATE_STRING (1, str); |
1428 | c_str = scm_i_string_chars (str); | |
9361f762 | 1429 | |
b89c4943 | 1430 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); |
9361f762 | 1431 | |
b89c4943 LC |
1432 | if (c_locale != NULL) |
1433 | { | |
1434 | #ifdef USE_GNU_LOCALE_API | |
1435 | c_result = strtod_l (c_str, &c_endptr, c_locale); | |
1436 | #else | |
1437 | RUN_IN_LOCALE_SECTION (c_locale, | |
1438 | c_result = strtod (c_str, &c_endptr)); | |
1439 | #endif | |
1440 | } | |
9361f762 | 1441 | else |
b89c4943 LC |
1442 | c_result = strtod (c_str, &c_endptr); |
1443 | ||
1444 | scm_remember_upto_here (str); | |
1445 | ||
1446 | if (c_endptr == c_str) | |
9361f762 | 1447 | result = SCM_BOOL_F; |
b89c4943 LC |
1448 | else |
1449 | result = scm_from_double (c_result); | |
9361f762 | 1450 | |
b89c4943 | 1451 | return (scm_values (scm_list_2 (result, scm_from_long (c_endptr - c_str)))); |
9361f762 MV |
1452 | } |
1453 | #undef FUNC_NAME | |
1454 | ||
b89c4943 | 1455 | \f |
a2f00b9b LC |
1456 | /* Language information, aka. `nl_langinfo ()'. */ |
1457 | ||
1458 | /* FIXME: Issues related to `nl-langinfo'. | |
1459 | ||
1460 | 1. The `CODESET' value is not normalized. This is a secondary issue, but | |
1461 | still a practical issue. See | |
1462 | http://www.cl.cam.ac.uk/~mgk25/ucs/norm_charmap.c for codeset | |
1463 | normalization. | |
1464 | ||
1465 | 2. `nl_langinfo ()' is not available on Windows. | |
1466 | ||
1467 | 3. `nl_langinfo ()' may return strings encoded in a locale different from | |
52642040 MG |
1468 | the current one. |
1469 | For example: | |
a2f00b9b LC |
1470 | |
1471 | (nl-langinfo DAY_1 (make-locale LC_ALL "eo_EO.UTF-8")) | |
1472 | ||
52642040 MG |
1473 | returns a result that is a UTF-8 string, regardless of the |
1474 | setting of the current locale. If nl_langinfo supports CODESET, | |
1475 | we can convert the string properly using scm_from_stringn. If | |
1476 | CODESET is not supported, we won't be able to make much sense of | |
56d288b8 LC |
1477 | the returned string. |
1478 | ||
1479 | Note: We don't use Gnulib's `nl_langinfo' module because it's currently not | |
1480 | as complete as the compatibility hacks in `i18n.scm'. */ | |
a2f00b9b LC |
1481 | |
1482 | ||
1483 | SCM_DEFINE (scm_nl_langinfo, "nl-langinfo", 1, 1, 0, | |
1484 | (SCM item, SCM locale), | |
1485 | "Return a string denoting locale information for @var{item} " | |
1486 | "in the current locale or that specified by @var{locale}. " | |
1487 | "The semantics and arguments are the same as those of the " | |
1488 | "X/Open @code{nl_langinfo} function (@pxref{The Elegant and " | |
1489 | "Fast Way, @code{nl_langinfo},, libc, The GNU C Library " | |
1490 | "Reference Manual}).") | |
1491 | #define FUNC_NAME s_scm_nl_langinfo | |
1492 | { | |
1493 | #ifdef HAVE_NL_LANGINFO | |
1494 | SCM result; | |
1495 | nl_item c_item; | |
1496 | char *c_result; | |
1497 | scm_t_locale c_locale; | |
52642040 MG |
1498 | #ifdef HAVE_LANGINFO_CODESET |
1499 | char *codeset; | |
1500 | #endif | |
a2f00b9b LC |
1501 | |
1502 | SCM_VALIDATE_INT_COPY (2, item, c_item); | |
1503 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
1504 | ||
1505 | /* Sadly, `nl_langinfo ()' returns a pointer to a static string. According | |
1506 | to SuS v2, that static string may be modified by subsequent calls to | |
1507 | `nl_langinfo ()' as well as by calls to `setlocale ()'. Thus, we must | |
1508 | acquire the locale mutex before doing invoking `nl_langinfo ()'. See | |
1509 | http://opengroup.org/onlinepubs/007908799/xsh/nl_langinfo.html for | |
1510 | details. */ | |
1511 | ||
073167ef | 1512 | lock_locale_mutex (); |
a2f00b9b LC |
1513 | if (c_locale != NULL) |
1514 | { | |
1515 | #ifdef USE_GNU_LOCALE_API | |
1516 | c_result = nl_langinfo_l (c_item, c_locale); | |
52642040 MG |
1517 | #ifdef HAVE_LANGINFO_CODESET |
1518 | codeset = nl_langinfo_l (CODESET, c_locale); | |
1519 | #endif /* HAVE_LANGINFO_CODESET */ | |
1520 | #else /* !USE_GNU_LOCALE_API */ | |
a2f00b9b LC |
1521 | /* We can't use `RUN_IN_LOCALE_SECTION ()' here because the locale |
1522 | mutex is already taken. */ | |
1523 | int lsec_err; | |
1524 | scm_t_locale_settings lsec_prev_locale; | |
1525 | ||
1526 | lsec_err = get_current_locale_settings (&lsec_prev_locale); | |
1527 | if (lsec_err) | |
073167ef | 1528 | unlock_locale_mutex (); |
a2f00b9b LC |
1529 | else |
1530 | { | |
1531 | lsec_err = install_locale (c_locale); | |
1532 | if (lsec_err) | |
1533 | { | |
1534 | leave_locale_section (&lsec_prev_locale); | |
1535 | free_locale_settings (&lsec_prev_locale); | |
1536 | } | |
1537 | } | |
1538 | ||
1539 | if (lsec_err) | |
1540 | scm_locale_error (FUNC_NAME, lsec_err); | |
1541 | else | |
1542 | { | |
1543 | c_result = nl_langinfo (c_item); | |
52642040 MG |
1544 | #ifdef HAVE_LANGINFO_CODESET |
1545 | codeset = nl_langinfo (CODESET); | |
1546 | #endif /* HAVE_LANGINFO_CODESET */ | |
a2f00b9b | 1547 | |
1445e449 | 1548 | restore_locale_settings (&lsec_prev_locale); |
a2f00b9b LC |
1549 | free_locale_settings (&lsec_prev_locale); |
1550 | } | |
1551 | #endif | |
1552 | } | |
1553 | else | |
52642040 MG |
1554 | { |
1555 | c_result = nl_langinfo (c_item); | |
1556 | #ifdef HAVE_LANGINFO_CODESET | |
1557 | codeset = nl_langinfo (CODESET); | |
1558 | #endif /* HAVE_LANGINFO_CODESET */ | |
1559 | } | |
a2f00b9b LC |
1560 | |
1561 | c_result = strdup (c_result); | |
073167ef | 1562 | unlock_locale_mutex (); |
a2f00b9b LC |
1563 | |
1564 | if (c_result == NULL) | |
1565 | result = SCM_BOOL_F; | |
1566 | else | |
1567 | { | |
a2f00b9b LC |
1568 | switch (c_item) |
1569 | { | |
afb49959 | 1570 | #if (defined GROUPING) && (defined MON_GROUPING) |
a2f00b9b LC |
1571 | case GROUPING: |
1572 | case MON_GROUPING: | |
a2f00b9b | 1573 | { |
afb49959 | 1574 | char *p; |
a2f00b9b | 1575 | |
914c4300 LC |
1576 | /* In this cases, the result is to be interpreted as a list |
1577 | of numbers. If the last item is `CHAR_MAX' or a negative | |
1578 | number, it has the special meaning "no more grouping" | |
1579 | (negative numbers aren't specified in POSIX but can be | |
1580 | used by glibc; see | |
1581 | <http://lists.gnu.org/archive/html/bug-guile/2011-02/msg00159.html>). */ | |
afb49959 | 1582 | result = SCM_EOL; |
914c4300 | 1583 | for (p = c_result; (*p > 0) && (*p != CHAR_MAX); p++) |
afb49959 | 1584 | result = scm_cons (SCM_I_MAKINUM ((int) *p), result); |
a2f00b9b | 1585 | |
afb49959 LC |
1586 | { |
1587 | SCM last_pair = result; | |
a2f00b9b | 1588 | |
afb49959 LC |
1589 | result = scm_reverse_x (result, SCM_EOL); |
1590 | ||
914c4300 | 1591 | if (*p == 0) |
afb49959 LC |
1592 | { |
1593 | /* Cyclic grouping information. */ | |
393baa8a | 1594 | if (!scm_is_null (last_pair)) |
afb49959 LC |
1595 | SCM_SETCDR (last_pair, result); |
1596 | } | |
1597 | } | |
a2f00b9b | 1598 | |
afb49959 LC |
1599 | free (c_result); |
1600 | break; | |
1601 | } | |
1602 | #endif | |
1603 | ||
1604 | #if (defined FRAC_DIGITS) && (defined INT_FRAC_DIGITS) | |
a2f00b9b LC |
1605 | case FRAC_DIGITS: |
1606 | case INT_FRAC_DIGITS: | |
1607 | /* This is to be interpreted as a single integer. */ | |
1608 | if (*c_result == CHAR_MAX) | |
1609 | /* Unspecified. */ | |
1610 | result = SCM_BOOL_F; | |
1611 | else | |
1612 | result = SCM_I_MAKINUM (*c_result); | |
1613 | ||
1614 | free (c_result); | |
1615 | break; | |
afb49959 | 1616 | #endif |
a2f00b9b | 1617 | |
afb49959 | 1618 | #if (defined P_CS_PRECEDES) && (defined INT_N_CS_PRECEDES) |
a2f00b9b LC |
1619 | case P_CS_PRECEDES: |
1620 | case N_CS_PRECEDES: | |
1621 | case INT_P_CS_PRECEDES: | |
1622 | case INT_N_CS_PRECEDES: | |
afb49959 | 1623 | #if (defined P_SEP_BY_SPACE) && (defined N_SEP_BY_SPACE) |
a2f00b9b LC |
1624 | case P_SEP_BY_SPACE: |
1625 | case N_SEP_BY_SPACE: | |
afb49959 | 1626 | #endif |
a2f00b9b LC |
1627 | /* This is to be interpreted as a boolean. */ |
1628 | result = scm_from_bool (*c_result); | |
1629 | ||
1630 | free (c_result); | |
1631 | break; | |
afb49959 | 1632 | #endif |
a2f00b9b | 1633 | |
afb49959 | 1634 | #if (defined P_SIGN_POSN) && (defined INT_N_SIGN_POSN) |
a2f00b9b LC |
1635 | case P_SIGN_POSN: |
1636 | case N_SIGN_POSN: | |
1637 | case INT_P_SIGN_POSN: | |
1638 | case INT_N_SIGN_POSN: | |
1639 | /* See `(libc) Sign of Money Amount' for the interpretation of the | |
1640 | return value here. */ | |
1641 | switch (*c_result) | |
1642 | { | |
1643 | case 0: | |
4a655e50 | 1644 | result = scm_from_latin1_symbol ("parenthesize"); |
a2f00b9b LC |
1645 | break; |
1646 | ||
1647 | case 1: | |
4a655e50 | 1648 | result = scm_from_latin1_symbol ("sign-before"); |
a2f00b9b LC |
1649 | break; |
1650 | ||
1651 | case 2: | |
4a655e50 | 1652 | result = scm_from_latin1_symbol ("sign-after"); |
a2f00b9b LC |
1653 | break; |
1654 | ||
1655 | case 3: | |
4a655e50 | 1656 | result = scm_from_latin1_symbol ("sign-before-currency-symbol"); |
a2f00b9b LC |
1657 | break; |
1658 | ||
1659 | case 4: | |
4a655e50 | 1660 | result = scm_from_latin1_symbol ("sign-after-currency-symbol"); |
a2f00b9b LC |
1661 | break; |
1662 | ||
1663 | default: | |
4a655e50 | 1664 | result = scm_from_latin1_symbol ("unspecified"); |
a2f00b9b LC |
1665 | } |
1666 | break; | |
afb49959 | 1667 | #endif |
a2f00b9b LC |
1668 | |
1669 | default: | |
52642040 MG |
1670 | #ifdef HAVE_LANGINFO_CODESET |
1671 | result = scm_from_stringn (c_result, strlen (c_result), | |
1672 | codeset, | |
1673 | SCM_FAILED_CONVERSION_QUESTION_MARK); | |
1674 | #else /* !HAVE_LANGINFO_CODESET */ | |
1675 | /* This may be incorrectly encoded if the locale differs | |
1676 | from the c_locale. */ | |
1677 | result = scm_from_locale_string (c_result); | |
1678 | #endif /* !HAVE_LANGINFO_CODESET */ | |
b8fc11d2 | 1679 | free (c_result); |
a2f00b9b LC |
1680 | } |
1681 | } | |
1682 | ||
1683 | return result; | |
1684 | #else | |
1685 | scm_syserror_msg (FUNC_NAME, "`nl-langinfo' not supported on your system", | |
1686 | SCM_EOL, ENOSYS); | |
1687 | ||
1688 | return SCM_BOOL_F; | |
1689 | #endif | |
1690 | } | |
1691 | #undef FUNC_NAME | |
1692 | ||
1693 | /* Define the `nl_item' constants. */ | |
1694 | static inline void | |
1695 | define_langinfo_items (void) | |
9361f762 | 1696 | { |
24deb6d0 | 1697 | #ifdef HAVE_LANGINFO_H |
a2f00b9b LC |
1698 | |
1699 | #define DEFINE_NLITEM_CONSTANT(_item) \ | |
1700 | scm_c_define (# _item, scm_from_int (_item)) | |
1701 | ||
1702 | DEFINE_NLITEM_CONSTANT (CODESET); | |
1703 | ||
1704 | /* Abbreviated days of the week. */ | |
1705 | DEFINE_NLITEM_CONSTANT (ABDAY_1); | |
1706 | DEFINE_NLITEM_CONSTANT (ABDAY_2); | |
1707 | DEFINE_NLITEM_CONSTANT (ABDAY_3); | |
1708 | DEFINE_NLITEM_CONSTANT (ABDAY_4); | |
1709 | DEFINE_NLITEM_CONSTANT (ABDAY_5); | |
1710 | DEFINE_NLITEM_CONSTANT (ABDAY_6); | |
1711 | DEFINE_NLITEM_CONSTANT (ABDAY_7); | |
1712 | ||
1713 | /* Long-named days of the week. */ | |
1714 | DEFINE_NLITEM_CONSTANT (DAY_1); /* Sunday */ | |
1715 | DEFINE_NLITEM_CONSTANT (DAY_2); /* Monday */ | |
1716 | DEFINE_NLITEM_CONSTANT (DAY_3); /* Tuesday */ | |
1717 | DEFINE_NLITEM_CONSTANT (DAY_4); /* Wednesday */ | |
1718 | DEFINE_NLITEM_CONSTANT (DAY_5); /* Thursday */ | |
1719 | DEFINE_NLITEM_CONSTANT (DAY_6); /* Friday */ | |
1720 | DEFINE_NLITEM_CONSTANT (DAY_7); /* Saturday */ | |
1721 | ||
1722 | /* Abbreviated month names. */ | |
1723 | DEFINE_NLITEM_CONSTANT (ABMON_1); /* Jan */ | |
1724 | DEFINE_NLITEM_CONSTANT (ABMON_2); | |
1725 | DEFINE_NLITEM_CONSTANT (ABMON_3); | |
1726 | DEFINE_NLITEM_CONSTANT (ABMON_4); | |
1727 | DEFINE_NLITEM_CONSTANT (ABMON_5); | |
1728 | DEFINE_NLITEM_CONSTANT (ABMON_6); | |
1729 | DEFINE_NLITEM_CONSTANT (ABMON_7); | |
1730 | DEFINE_NLITEM_CONSTANT (ABMON_8); | |
1731 | DEFINE_NLITEM_CONSTANT (ABMON_9); | |
1732 | DEFINE_NLITEM_CONSTANT (ABMON_10); | |
1733 | DEFINE_NLITEM_CONSTANT (ABMON_11); | |
1734 | DEFINE_NLITEM_CONSTANT (ABMON_12); | |
1735 | ||
1736 | /* Long month names. */ | |
1737 | DEFINE_NLITEM_CONSTANT (MON_1); /* January */ | |
1738 | DEFINE_NLITEM_CONSTANT (MON_2); | |
1739 | DEFINE_NLITEM_CONSTANT (MON_3); | |
1740 | DEFINE_NLITEM_CONSTANT (MON_4); | |
1741 | DEFINE_NLITEM_CONSTANT (MON_5); | |
1742 | DEFINE_NLITEM_CONSTANT (MON_6); | |
1743 | DEFINE_NLITEM_CONSTANT (MON_7); | |
1744 | DEFINE_NLITEM_CONSTANT (MON_8); | |
1745 | DEFINE_NLITEM_CONSTANT (MON_9); | |
1746 | DEFINE_NLITEM_CONSTANT (MON_10); | |
1747 | DEFINE_NLITEM_CONSTANT (MON_11); | |
1748 | DEFINE_NLITEM_CONSTANT (MON_12); | |
1749 | ||
1750 | DEFINE_NLITEM_CONSTANT (AM_STR); /* Ante meridiem string. */ | |
1751 | DEFINE_NLITEM_CONSTANT (PM_STR); /* Post meridiem string. */ | |
1752 | ||
1753 | DEFINE_NLITEM_CONSTANT (D_T_FMT); /* Date and time format for strftime. */ | |
1754 | DEFINE_NLITEM_CONSTANT (D_FMT); /* Date format for strftime. */ | |
1755 | DEFINE_NLITEM_CONSTANT (T_FMT); /* Time format for strftime. */ | |
1756 | DEFINE_NLITEM_CONSTANT (T_FMT_AMPM);/* 12-hour time format for strftime. */ | |
1757 | ||
1758 | DEFINE_NLITEM_CONSTANT (ERA); /* Alternate era. */ | |
1759 | DEFINE_NLITEM_CONSTANT (ERA_D_FMT); /* Date in alternate era format. */ | |
1760 | DEFINE_NLITEM_CONSTANT (ERA_D_T_FMT); /* Date and time in alternate era | |
1761 | format. */ | |
1762 | DEFINE_NLITEM_CONSTANT (ERA_T_FMT); /* Time in alternate era format. */ | |
1763 | ||
1764 | DEFINE_NLITEM_CONSTANT (ALT_DIGITS); /* Alternate symbols for digits. */ | |
1765 | DEFINE_NLITEM_CONSTANT (RADIXCHAR); | |
1766 | DEFINE_NLITEM_CONSTANT (THOUSEP); | |
1767 | ||
1768 | #ifdef YESEXPR | |
1769 | DEFINE_NLITEM_CONSTANT (YESEXPR); | |
1770 | #endif | |
1771 | #ifdef NOEXPR | |
1772 | DEFINE_NLITEM_CONSTANT (NOEXPR); | |
1773 | #endif | |
b89c4943 | 1774 | |
a2f00b9b LC |
1775 | #ifdef CRNCYSTR /* currency symbol */ |
1776 | DEFINE_NLITEM_CONSTANT (CRNCYSTR); | |
1777 | #endif | |
b89c4943 | 1778 | |
a2f00b9b | 1779 | /* GNU extensions. */ |
b89c4943 | 1780 | |
a2f00b9b LC |
1781 | #ifdef ERA_YEAR |
1782 | DEFINE_NLITEM_CONSTANT (ERA_YEAR); /* Year in alternate era format. */ | |
1783 | #endif | |
b89c4943 | 1784 | |
a2f00b9b LC |
1785 | /* LC_MONETARY category: formatting of monetary quantities. |
1786 | These items each correspond to a member of `struct lconv', | |
1787 | defined in <locale.h>. */ | |
1788 | #ifdef INT_CURR_SYMBOL | |
1789 | DEFINE_NLITEM_CONSTANT (INT_CURR_SYMBOL); | |
1790 | #endif | |
1791 | #ifdef MON_DECIMAL_POINT | |
1792 | DEFINE_NLITEM_CONSTANT (MON_DECIMAL_POINT); | |
1793 | #endif | |
1794 | #ifdef MON_THOUSANDS_SEP | |
1795 | DEFINE_NLITEM_CONSTANT (MON_THOUSANDS_SEP); | |
1796 | #endif | |
1797 | #ifdef MON_GROUPING | |
1798 | DEFINE_NLITEM_CONSTANT (MON_GROUPING); | |
1799 | #endif | |
1800 | #ifdef POSITIVE_SIGN | |
1801 | DEFINE_NLITEM_CONSTANT (POSITIVE_SIGN); | |
1802 | #endif | |
1803 | #ifdef NEGATIVE_SIGN | |
1804 | DEFINE_NLITEM_CONSTANT (NEGATIVE_SIGN); | |
1805 | #endif | |
1806 | #ifdef GROUPING | |
1807 | DEFINE_NLITEM_CONSTANT (GROUPING); | |
1808 | #endif | |
1809 | #ifdef INT_FRAC_DIGITS | |
1810 | DEFINE_NLITEM_CONSTANT (INT_FRAC_DIGITS); | |
1811 | #endif | |
1812 | #ifdef FRAC_DIGITS | |
1813 | DEFINE_NLITEM_CONSTANT (FRAC_DIGITS); | |
1814 | #endif | |
1815 | #ifdef P_CS_PRECEDES | |
1816 | DEFINE_NLITEM_CONSTANT (P_CS_PRECEDES); | |
1817 | #endif | |
1818 | #ifdef P_SEP_BY_SPACE | |
1819 | DEFINE_NLITEM_CONSTANT (P_SEP_BY_SPACE); | |
1820 | #endif | |
1821 | #ifdef N_CS_PRECEDES | |
1822 | DEFINE_NLITEM_CONSTANT (N_CS_PRECEDES); | |
1823 | #endif | |
1824 | #ifdef N_SEP_BY_SPACE | |
1825 | DEFINE_NLITEM_CONSTANT (N_SEP_BY_SPACE); | |
1826 | #endif | |
1827 | #ifdef P_SIGN_POSN | |
1828 | DEFINE_NLITEM_CONSTANT (P_SIGN_POSN); | |
1829 | #endif | |
1830 | #ifdef N_SIGN_POSN | |
1831 | DEFINE_NLITEM_CONSTANT (N_SIGN_POSN); | |
1832 | #endif | |
1833 | #ifdef INT_P_CS_PRECEDES | |
1834 | DEFINE_NLITEM_CONSTANT (INT_P_CS_PRECEDES); | |
1835 | #endif | |
1836 | #ifdef INT_P_SEP_BY_SPACE | |
1837 | DEFINE_NLITEM_CONSTANT (INT_P_SEP_BY_SPACE); | |
1838 | #endif | |
1839 | #ifdef INT_N_CS_PRECEDES | |
1840 | DEFINE_NLITEM_CONSTANT (INT_N_CS_PRECEDES); | |
1841 | #endif | |
1842 | #ifdef INT_N_SEP_BY_SPACE | |
1843 | DEFINE_NLITEM_CONSTANT (INT_N_SEP_BY_SPACE); | |
1844 | #endif | |
1845 | #ifdef INT_P_SIGN_POSN | |
1846 | DEFINE_NLITEM_CONSTANT (INT_P_SIGN_POSN); | |
1847 | #endif | |
1848 | #ifdef INT_N_SIGN_POSN | |
1849 | DEFINE_NLITEM_CONSTANT (INT_N_SIGN_POSN); | |
1850 | #endif | |
1851 | ||
1852 | #undef DEFINE_NLITEM_CONSTANT | |
1853 | ||
1854 | #endif /* HAVE_NL_TYPES_H */ | |
1855 | } | |
1856 | ||
1857 | \f | |
1858 | void | |
1859 | scm_init_i18n () | |
1860 | { | |
1861 | SCM global_locale_smob; | |
1862 | ||
1863 | #ifdef HAVE_NL_LANGINFO | |
1864 | scm_add_feature ("nl-langinfo"); | |
1865 | define_langinfo_items (); | |
1866 | #endif | |
b89c4943 | 1867 | |
9361f762 | 1868 | #include "libguile/i18n.x" |
b89c4943 | 1869 | |
a2f00b9b | 1870 | /* Initialize the global locale object with a special `locale' SMOB. */ |
c3b16a5d LC |
1871 | /* XXX: We don't define it as `LC_GLOBAL_LOCALE' because of bugs as of |
1872 | glibc <= 2.11 not (yet) worked around by Gnulib. See | |
1873 | http://sourceware.org/bugzilla/show_bug.cgi?id=11009 for details. */ | |
a2f00b9b LC |
1874 | SCM_NEWSMOB (global_locale_smob, scm_tc16_locale_smob_type, NULL); |
1875 | SCM_VARIABLE_SET (scm_global_locale, global_locale_smob); | |
9361f762 MV |
1876 | } |
1877 | ||
756e8a3a LC |
1878 | void |
1879 | scm_bootstrap_i18n () | |
1880 | { | |
44602b08 AW |
1881 | scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION, |
1882 | "scm_init_i18n", | |
756e8a3a LC |
1883 | (scm_t_extension_init_func) scm_init_i18n, |
1884 | NULL); | |
1885 | ||
1886 | } | |
1887 | ||
9361f762 MV |
1888 | |
1889 | /* | |
1890 | Local Variables: | |
1891 | c-file-style: "gnu" | |
1892 | End: | |
1893 | */ |