Commit | Line | Data |
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cfefef6b | 1 | /* Copyright (C) 2006-2014 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 | |
30c5982a | 43 | #if defined HAVE_NEWLOCALE && defined HAVE_STRCOLL_L && defined HAVE_USELOCALE |
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 | ||
a0919aef LC |
62 | /* Use Gnulib's header, which also provides `nl_item' & co. */ |
63 | #include <langinfo.h> | |
b89c4943 LC |
64 | |
65 | #ifndef HAVE_SETLOCALE | |
66 | static inline char * | |
67 | setlocale (int category, const char *name) | |
68 | { | |
69 | errno = ENOSYS; | |
70 | return NULL; | |
71 | } | |
9361f762 | 72 | #endif |
b89c4943 | 73 | |
a2f00b9b LC |
74 | /* Helper stringification macro. */ |
75 | #define SCM_I18N_STRINGIFY(_name) # _name | |
76 | ||
073167ef LC |
77 | /* Acquiring and releasing the locale lock. */ |
78 | ||
79 | static inline void | |
80 | lock_locale_mutex (void) | |
81 | { | |
82 | #ifdef HAVE_POSIX | |
83 | scm_i_pthread_mutex_lock (&scm_i_locale_mutex); | |
84 | #else | |
85 | #endif | |
86 | } | |
87 | ||
88 | static inline void | |
89 | unlock_locale_mutex (void) | |
90 | { | |
91 | #ifdef HAVE_POSIX | |
92 | scm_i_pthread_mutex_unlock (&scm_i_locale_mutex); | |
93 | #else | |
94 | #endif | |
95 | } | |
b89c4943 LC |
96 | |
97 | \f | |
98 | /* Locale objects, string and character collation, and other locale-dependent | |
99 | string operations. | |
100 | ||
101 | A large part of the code here deals with emulating glibc's reentrant | |
102 | locale API on non-GNU systems. The emulation is a bit "brute-force": | |
103 | Whenever a `-locale<?' procedure is passed a locale object, then: | |
104 | ||
a2f00b9b | 105 | 1. The `scm_i_locale_mutex' is locked. |
b89c4943 | 106 | 2. A series of `setlocale ()' call is performed to store the current |
a2f00b9b | 107 | locale for each category in an `scm_t_locale' object. |
b89c4943 LC |
108 | 3. A series of `setlocale ()' call is made to install each of the locale |
109 | categories of each of the base locales of each locale object, | |
110 | recursively, starting from the last locale object of the chain. | |
111 | 4. The settings captured in step (2) are restored. | |
a2f00b9b | 112 | 5. The `scm_i_locale_mutex' is released. |
b89c4943 | 113 | |
a2f00b9b | 114 | Hopefully, the X/Open standard will eventually make this hack useless. |
b89c4943 LC |
115 | |
116 | Note: We don't wrap glibc's `uselocale ()' call because it sets the locale | |
117 | of the current _thread_ (unlike `setlocale ()') and doing so would require | |
118 | maintaining per-thread locale information on non-GNU systems and always | |
119 | re-installing this locale upon locale-dependent calls. */ | |
120 | ||
121 | ||
a2f00b9b LC |
122 | /* Return the category mask corresponding to CAT. */ |
123 | #define SCM_LOCALE_CATEGORY_MASK(_cat) LC_ ## _cat ## _MASK | |
124 | ||
125 | ||
b89c4943 LC |
126 | #ifndef USE_GNU_LOCALE_API |
127 | ||
a2f00b9b LC |
128 | /* Provide the locale category masks as found in glibc. This must be kept in |
129 | sync with `locale-categories.h'. */ | |
b89c4943 | 130 | |
a2f00b9b LC |
131 | # define LC_CTYPE_MASK 1 |
132 | # define LC_COLLATE_MASK 2 | |
133 | # define LC_MESSAGES_MASK 4 | |
134 | # define LC_MONETARY_MASK 8 | |
135 | # define LC_NUMERIC_MASK 16 | |
136 | # define LC_TIME_MASK 32 | |
b89c4943 LC |
137 | |
138 | # ifdef LC_PAPER | |
a2f00b9b | 139 | # define LC_PAPER_MASK 64 |
b89c4943 LC |
140 | # else |
141 | # define LC_PAPER_MASK 0 | |
142 | # endif | |
143 | # ifdef LC_NAME | |
a2f00b9b | 144 | # define LC_NAME_MASK 128 |
b89c4943 LC |
145 | # else |
146 | # define LC_NAME_MASK 0 | |
147 | # endif | |
148 | # ifdef LC_ADDRESS | |
a2f00b9b | 149 | # define LC_ADDRESS_MASK 256 |
b89c4943 LC |
150 | # else |
151 | # define LC_ADDRESS_MASK 0 | |
152 | # endif | |
153 | # ifdef LC_TELEPHONE | |
a2f00b9b | 154 | # define LC_TELEPHONE_MASK 512 |
b89c4943 LC |
155 | # else |
156 | # define LC_TELEPHONE_MASK 0 | |
157 | # endif | |
158 | # ifdef LC_MEASUREMENT | |
a2f00b9b | 159 | # define LC_MEASUREMENT_MASK 1024 |
b89c4943 LC |
160 | # else |
161 | # define LC_MEASUREMENT_MASK 0 | |
162 | # endif | |
163 | # ifdef LC_IDENTIFICATION | |
a2f00b9b | 164 | # define LC_IDENTIFICATION_MASK 2048 |
b89c4943 LC |
165 | # else |
166 | # define LC_IDENTIFICATION_MASK 0 | |
167 | # endif | |
168 | ||
a2f00b9b LC |
169 | # define LC_ALL_MASK (LC_CTYPE_MASK \ |
170 | | LC_NUMERIC_MASK \ | |
171 | | LC_TIME_MASK \ | |
172 | | LC_COLLATE_MASK \ | |
173 | | LC_MONETARY_MASK \ | |
174 | | LC_MESSAGES_MASK \ | |
175 | | LC_PAPER_MASK \ | |
176 | | LC_NAME_MASK \ | |
177 | | LC_ADDRESS_MASK \ | |
178 | | LC_TELEPHONE_MASK \ | |
179 | | LC_MEASUREMENT_MASK \ | |
180 | | LC_IDENTIFICATION_MASK \ | |
b89c4943 LC |
181 | ) |
182 | ||
183 | /* Locale objects as returned by `make-locale' on non-GNU systems. */ | |
184 | typedef struct scm_locale | |
185 | { | |
186 | SCM base_locale; /* a `locale' object */ | |
187 | char *locale_name; | |
188 | int category_mask; | |
189 | } *scm_t_locale; | |
190 | ||
a2f00b9b | 191 | #else /* USE_GNU_LOCALE_API */ |
b89c4943 LC |
192 | |
193 | /* Alias for glibc's locale type. */ | |
194 | typedef locale_t scm_t_locale; | |
195 | ||
a2f00b9b LC |
196 | #endif /* USE_GNU_LOCALE_API */ |
197 | ||
198 | ||
199 | /* A locale object denoting the global locale. */ | |
200 | SCM_GLOBAL_VARIABLE (scm_global_locale, "%global-locale"); | |
201 | ||
b89c4943 LC |
202 | |
203 | /* Validate parameter ARG as a locale object and set C_LOCALE to the | |
204 | corresponding C locale object. */ | |
205 | #define SCM_VALIDATE_LOCALE_COPY(_pos, _arg, _c_locale) \ | |
206 | do \ | |
207 | { \ | |
208 | SCM_VALIDATE_SMOB ((_pos), (_arg), locale_smob_type); \ | |
209 | (_c_locale) = (scm_t_locale)SCM_SMOB_DATA (_arg); \ | |
210 | } \ | |
211 | while (0) | |
212 | ||
213 | /* Validate optional parameter ARG as either undefined or bound to a locale | |
214 | object. Set C_LOCALE to the corresponding C locale object or NULL. */ | |
215 | #define SCM_VALIDATE_OPTIONAL_LOCALE_COPY(_pos, _arg, _c_locale) \ | |
216 | do \ | |
217 | { \ | |
a0919aef | 218 | if (!SCM_UNBNDP (_arg)) \ |
b89c4943 LC |
219 | SCM_VALIDATE_LOCALE_COPY (_pos, _arg, _c_locale); \ |
220 | else \ | |
221 | (_c_locale) = NULL; \ | |
222 | } \ | |
223 | while (0) | |
224 | ||
225 | ||
226 | SCM_SMOB (scm_tc16_locale_smob_type, "locale", 0); | |
227 | ||
94a751bd LC |
228 | #ifdef USE_GNU_LOCALE_API |
229 | ||
b89c4943 LC |
230 | SCM_SMOB_FREE (scm_tc16_locale_smob_type, smob_locale_free, locale) |
231 | { | |
232 | scm_t_locale c_locale; | |
233 | ||
a2f00b9b | 234 | c_locale = (scm_t_locale) SCM_SMOB_DATA (locale); |
4fbbf346 AW |
235 | if (c_locale) |
236 | freelocale (c_locale); | |
b89c4943 LC |
237 | |
238 | return 0; | |
239 | } | |
240 | ||
94a751bd LC |
241 | #endif /* USE_GNU_LOCALE_API */ |
242 | ||
9361f762 | 243 | |
a2f00b9b | 244 | static void inline scm_locale_error (const char *, int) SCM_NORETURN; |
b89c4943 | 245 | |
a2f00b9b LC |
246 | /* Throw an exception corresponding to error ERR. */ |
247 | static void inline | |
248 | scm_locale_error (const char *func_name, int err) | |
249 | { | |
250 | scm_syserror_msg (func_name, | |
251 | "Failed to install locale", | |
252 | SCM_EOL, err); | |
b89c4943 | 253 | } |
b89c4943 LC |
254 | |
255 | ||
256 | \f | |
a2f00b9b LC |
257 | /* Emulating GNU's reentrant locale API. */ |
258 | #ifndef USE_GNU_LOCALE_API | |
b89c4943 LC |
259 | |
260 | ||
261 | /* Maximum number of chained locales (via `base_locale'). */ | |
262 | #define LOCALE_STACK_SIZE_MAX 256 | |
263 | ||
264 | typedef struct | |
265 | { | |
266 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) char * _name; | |
267 | #include "locale-categories.h" | |
268 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
269 | } scm_t_locale_settings; | |
270 | ||
271 | /* Fill out SETTINGS according to the current locale settings. On success | |
272 | zero is returned and SETTINGS is properly initialized. */ | |
273 | static int | |
274 | get_current_locale_settings (scm_t_locale_settings *settings) | |
275 | { | |
276 | const char *locale_name; | |
277 | ||
278 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
279 | { \ | |
280 | SCM_SYSCALL (locale_name = setlocale (LC_ ## _name, NULL)); \ | |
a2f00b9b | 281 | if (locale_name == NULL) \ |
b89c4943 LC |
282 | goto handle_error; \ |
283 | \ | |
284 | settings-> _name = strdup (locale_name); \ | |
285 | if (settings-> _name == NULL) \ | |
286 | goto handle_oom; \ | |
287 | } | |
288 | ||
289 | #include "locale-categories.h" | |
290 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
291 | ||
292 | return 0; | |
293 | ||
294 | handle_error: | |
a2f00b9b | 295 | return EINVAL; |
9361f762 | 296 | |
b89c4943 LC |
297 | handle_oom: |
298 | return ENOMEM; | |
299 | } | |
300 | ||
301 | /* Restore locale settings SETTINGS. On success, return zero. */ | |
302 | static int | |
303 | restore_locale_settings (const scm_t_locale_settings *settings) | |
304 | { | |
305 | const char *result; | |
306 | ||
307 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
308 | SCM_SYSCALL (result = setlocale (LC_ ## _name, settings-> _name)); \ | |
309 | if (result == NULL) \ | |
310 | goto handle_error; | |
311 | ||
312 | #include "locale-categories.h" | |
313 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
314 | ||
315 | return 0; | |
316 | ||
317 | handle_error: | |
a2f00b9b | 318 | return EINVAL; |
b89c4943 LC |
319 | } |
320 | ||
321 | /* Free memory associated with SETTINGS. */ | |
322 | static void | |
323 | free_locale_settings (scm_t_locale_settings *settings) | |
324 | { | |
325 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
326 | free (settings-> _name); \ | |
327 | settings->_name = NULL; | |
328 | #include "locale-categories.h" | |
329 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
330 | } | |
9361f762 | 331 | |
b89c4943 LC |
332 | /* Install the locale named LOCALE_NAME for all the categories listed in |
333 | CATEGORY_MASK. */ | |
334 | static int | |
335 | install_locale_categories (const char *locale_name, int category_mask) | |
336 | { | |
337 | const char *result; | |
9361f762 | 338 | |
b89c4943 | 339 | if (category_mask == LC_ALL_MASK) |
9361f762 | 340 | { |
b89c4943 LC |
341 | SCM_SYSCALL (result = setlocale (LC_ALL, locale_name)); |
342 | if (result == NULL) | |
343 | goto handle_error; | |
9361f762 MV |
344 | } |
345 | else | |
346 | { | |
b89c4943 | 347 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ |
a2f00b9b | 348 | if (category_mask & SCM_LOCALE_CATEGORY_MASK (_name)) \ |
b89c4943 LC |
349 | { \ |
350 | SCM_SYSCALL (result = setlocale (LC_ ## _name, locale_name)); \ | |
351 | if (result == NULL) \ | |
352 | goto handle_error; \ | |
353 | } | |
354 | #include "locale-categories.h" | |
355 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
356 | } | |
9361f762 | 357 | |
b89c4943 | 358 | return 0; |
9361f762 | 359 | |
b89c4943 | 360 | handle_error: |
a2f00b9b | 361 | return EINVAL; |
b89c4943 LC |
362 | } |
363 | ||
364 | /* Install LOCALE, recursively installing its base locales first. On | |
365 | success, zero is returned. */ | |
366 | static int | |
367 | install_locale (scm_t_locale locale) | |
368 | { | |
369 | scm_t_locale stack[LOCALE_STACK_SIZE_MAX]; | |
a2f00b9b | 370 | int category_mask = 0; |
b89c4943 LC |
371 | size_t stack_size = 0; |
372 | int stack_offset = 0; | |
373 | const char *result = NULL; | |
374 | ||
375 | /* Build up a locale stack by traversing the `base_locale' link. */ | |
376 | do | |
377 | { | |
378 | if (stack_size >= LOCALE_STACK_SIZE_MAX) | |
379 | /* We cannot use `scm_error ()' here because otherwise the locale | |
380 | mutex may remain locked. */ | |
381 | return EINVAL; | |
382 | ||
383 | stack[stack_size++] = locale; | |
384 | ||
a2f00b9b LC |
385 | /* Keep track of which categories have already been taken into |
386 | account. */ | |
387 | category_mask |= locale->category_mask; | |
388 | ||
e780c14f | 389 | if (!SCM_UNBNDP (locale->base_locale)) |
a2f00b9b | 390 | locale = (scm_t_locale) SCM_SMOB_DATA (locale->base_locale); |
9361f762 | 391 | else |
b89c4943 LC |
392 | locale = NULL; |
393 | } | |
a2f00b9b | 394 | while ((locale != NULL) && (category_mask != LC_ALL_MASK)); |
9361f762 | 395 | |
b89c4943 LC |
396 | /* Install the C locale to start from a pristine state. */ |
397 | SCM_SYSCALL (result = setlocale (LC_ALL, "C")); | |
398 | if (result == NULL) | |
399 | goto handle_error; | |
400 | ||
401 | /* Install the locales in reverse order. */ | |
402 | for (stack_offset = stack_size - 1; | |
403 | stack_offset >= 0; | |
404 | stack_offset--) | |
405 | { | |
406 | int err; | |
407 | scm_t_locale locale; | |
408 | ||
409 | locale = stack[stack_offset]; | |
410 | err = install_locale_categories (locale->locale_name, | |
411 | locale->category_mask); | |
412 | if (err) | |
413 | goto handle_error; | |
9361f762 MV |
414 | } |
415 | ||
b89c4943 | 416 | return 0; |
9361f762 | 417 | |
b89c4943 | 418 | handle_error: |
a2f00b9b | 419 | return EINVAL; |
9361f762 | 420 | } |
9361f762 | 421 | |
b89c4943 LC |
422 | /* Leave the locked locale section. */ |
423 | static inline void | |
424 | leave_locale_section (const scm_t_locale_settings *settings) | |
425 | { | |
426 | /* Restore the previous locale settings. */ | |
427 | (void)restore_locale_settings (settings); | |
428 | ||
073167ef | 429 | unlock_locale_mutex (); |
b89c4943 | 430 | } |
9361f762 | 431 | |
b89c4943 LC |
432 | /* Enter a locked locale section. */ |
433 | static inline int | |
434 | enter_locale_section (scm_t_locale locale, | |
435 | scm_t_locale_settings *prev_locale) | |
9361f762 | 436 | { |
b89c4943 LC |
437 | int err; |
438 | ||
073167ef | 439 | lock_locale_mutex (); |
b89c4943 LC |
440 | |
441 | err = get_current_locale_settings (prev_locale); | |
442 | if (err) | |
443 | { | |
073167ef | 444 | unlock_locale_mutex (); |
b89c4943 LC |
445 | return err; |
446 | } | |
9361f762 | 447 | |
b89c4943 LC |
448 | err = install_locale (locale); |
449 | if (err) | |
450 | { | |
451 | leave_locale_section (prev_locale); | |
452 | free_locale_settings (prev_locale); | |
453 | } | |
454 | ||
455 | return err; | |
456 | } | |
457 | ||
b89c4943 LC |
458 | /* Convenient macro to run STATEMENT in the locale context of C_LOCALE. */ |
459 | #define RUN_IN_LOCALE_SECTION(_c_locale, _statement) \ | |
460 | do \ | |
461 | { \ | |
462 | int lsec_err; \ | |
463 | scm_t_locale_settings lsec_prev_locale; \ | |
464 | \ | |
465 | lsec_err = enter_locale_section ((_c_locale), &lsec_prev_locale); \ | |
466 | if (lsec_err) \ | |
467 | scm_locale_error (FUNC_NAME, lsec_err); \ | |
468 | else \ | |
469 | { \ | |
470 | _statement ; \ | |
471 | \ | |
472 | leave_locale_section (&lsec_prev_locale); \ | |
473 | free_locale_settings (&lsec_prev_locale); \ | |
474 | } \ | |
475 | } \ | |
476 | while (0) | |
477 | ||
a2f00b9b LC |
478 | /* Convert the current locale settings into a locale SMOB. On success, zero |
479 | is returned and RESULT points to the new SMOB. Otherwise, an error is | |
480 | returned. */ | |
481 | static int | |
482 | get_current_locale (SCM *result) | |
483 | { | |
484 | int err = 0; | |
485 | scm_t_locale c_locale; | |
486 | const char *current_locale; | |
487 | ||
488 | c_locale = scm_gc_malloc (sizeof (* c_locale), "locale"); | |
489 | ||
073167ef | 490 | lock_locale_mutex (); |
a2f00b9b LC |
491 | |
492 | c_locale->category_mask = LC_ALL_MASK; | |
493 | c_locale->base_locale = SCM_UNDEFINED; | |
494 | ||
495 | current_locale = setlocale (LC_ALL, NULL); | |
496 | if (current_locale != NULL) | |
0b4f7719 | 497 | c_locale->locale_name = scm_gc_strdup (current_locale, "locale"); |
a2f00b9b LC |
498 | else |
499 | err = EINVAL; | |
500 | ||
073167ef | 501 | unlock_locale_mutex (); |
a2f00b9b | 502 | |
42f95812 | 503 | if (err == 0) |
a2f00b9b | 504 | SCM_NEWSMOB (*result, scm_tc16_locale_smob_type, c_locale); |
42f95812 AW |
505 | else |
506 | *result = SCM_BOOL_F; | |
a2f00b9b LC |
507 | |
508 | return err; | |
509 | } | |
510 | ||
5b878445 | 511 | #else /* USE_GNU_LOCALE_API */ |
a2f00b9b | 512 | |
5b878445 | 513 | /* Convenient macro to run STATEMENT in the locale context of C_LOCALE. */ |
12f0c3e5 LC |
514 | #define RUN_IN_LOCALE_SECTION(_c_locale, _statement) \ |
515 | do \ | |
516 | { \ | |
517 | scm_t_locale old_loc; \ | |
518 | \ | |
519 | old_loc = uselocale (_c_locale); \ | |
520 | _statement ; \ | |
521 | uselocale (old_loc); \ | |
522 | } \ | |
5b878445 MG |
523 | while (0) |
524 | ||
525 | ||
526 | #endif /* USE_GNU_LOCALE_API */ | |
9361f762 | 527 | |
a2f00b9b LC |
528 | |
529 | \f | |
530 | /* `make-locale' can take either category lists or single categories (the | |
531 | `LC_*' integer constants). */ | |
532 | #define SCM_LIST_OR_INTEGER_P(arg) \ | |
533 | (scm_is_integer (arg) || scm_is_true (scm_list_p (arg))) | |
534 | ||
535 | ||
536 | /* Return the category mask corresponding to CATEGORY (an `LC_' integer | |
537 | constant). */ | |
538 | static inline int | |
539 | category_to_category_mask (SCM category, | |
540 | const char *func_name, int pos) | |
541 | { | |
542 | int c_category; | |
543 | int c_category_mask; | |
544 | ||
545 | c_category = scm_to_int (category); | |
546 | ||
547 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
548 | case LC_ ## _name: \ | |
549 | c_category_mask = SCM_LOCALE_CATEGORY_MASK (_name); \ | |
550 | break; | |
551 | ||
552 | switch (c_category) | |
553 | { | |
554 | #include "locale-categories.h" | |
555 | ||
556 | case LC_ALL: | |
557 | c_category_mask = LC_ALL_MASK; | |
558 | break; | |
559 | ||
560 | default: | |
561 | scm_wrong_type_arg_msg (func_name, pos, category, | |
562 | "locale category"); | |
563 | } | |
564 | ||
565 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
566 | ||
567 | return c_category_mask; | |
568 | } | |
569 | ||
570 | /* Convert CATEGORIES, a list of locale categories or a single category (an | |
571 | integer), into a category mask. */ | |
572 | static int | |
573 | category_list_to_category_mask (SCM categories, | |
574 | const char *func_name, int pos) | |
575 | { | |
576 | int c_category_mask = 0; | |
577 | ||
578 | if (scm_is_integer (categories)) | |
579 | c_category_mask = category_to_category_mask (categories, | |
580 | func_name, pos); | |
581 | else | |
582 | for (; !scm_is_null (categories); categories = SCM_CDR (categories)) | |
583 | { | |
584 | SCM category = SCM_CAR (categories); | |
585 | ||
586 | c_category_mask |= | |
587 | category_to_category_mask (category, func_name, pos); | |
588 | } | |
589 | ||
590 | return c_category_mask; | |
591 | } | |
592 | ||
593 | ||
594 | SCM_DEFINE (scm_make_locale, "make-locale", 2, 1, 0, | |
595 | (SCM category_list, SCM locale_name, SCM base_locale), | |
596 | "Return a reference to a data structure representing a set of " | |
597 | "locale datasets. @var{category_list} should be either a list " | |
598 | "of locale categories or a single category as used with " | |
599 | "@code{setlocale} (@pxref{Locales, @code{setlocale}}) and " | |
600 | "@var{locale_name} should be the name of the locale considered " | |
601 | "(e.g., @code{\"sl_SI\"}). Optionally, if @code{base_locale} is " | |
602 | "passed, it should be a locale object denoting settings for " | |
603 | "categories not listed in @var{category_list}.") | |
604 | #define FUNC_NAME s_scm_make_locale | |
605 | { | |
606 | SCM locale = SCM_BOOL_F; | |
607 | int err = 0; | |
608 | int c_category_mask; | |
609 | char *c_locale_name; | |
610 | scm_t_locale c_base_locale, c_locale; | |
611 | ||
612 | SCM_MAKE_VALIDATE (1, category_list, LIST_OR_INTEGER_P); | |
613 | SCM_VALIDATE_STRING (2, locale_name); | |
614 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, base_locale, c_base_locale); | |
615 | ||
616 | c_category_mask = category_list_to_category_mask (category_list, | |
617 | FUNC_NAME, 1); | |
618 | c_locale_name = scm_to_locale_string (locale_name); | |
619 | ||
620 | #ifdef USE_GNU_LOCALE_API | |
621 | ||
622 | if (scm_is_eq (base_locale, SCM_VARIABLE_REF (scm_global_locale))) | |
c3b16a5d | 623 | c_base_locale = LC_GLOBAL_LOCALE; |
a2f00b9b | 624 | |
c3b16a5d | 625 | if (c_base_locale != (locale_t) 0) |
a2f00b9b LC |
626 | { |
627 | /* C_BASE_LOCALE is to be consumed by `newlocale ()' so it needs to be | |
628 | duplicated before. */ | |
629 | c_base_locale = duplocale (c_base_locale); | |
c3b16a5d | 630 | |
a2f00b9b LC |
631 | if (c_base_locale == (locale_t) 0) |
632 | { | |
633 | err = errno; | |
634 | goto fail; | |
635 | } | |
636 | } | |
637 | ||
638 | c_locale = newlocale (c_category_mask, c_locale_name, c_base_locale); | |
639 | ||
640 | free (c_locale_name); | |
e22ad42b | 641 | c_locale_name = NULL; |
a2f00b9b LC |
642 | |
643 | if (c_locale == (locale_t) 0) | |
644 | { | |
c3b16a5d | 645 | if (c_base_locale != (locale_t) 0) |
a2f00b9b | 646 | freelocale (c_base_locale); |
a2f00b9b LC |
647 | scm_locale_error (FUNC_NAME, errno); |
648 | } | |
649 | else | |
650 | SCM_NEWSMOB (locale, scm_tc16_locale_smob_type, c_locale); | |
651 | ||
652 | #else | |
653 | ||
654 | c_locale = scm_gc_malloc (sizeof (* c_locale), "locale"); | |
655 | ||
656 | c_locale->category_mask = c_category_mask; | |
94a751bd LC |
657 | c_locale->locale_name = scm_gc_strdup (c_locale_name, "locale"); |
658 | free (c_locale_name); | |
e22ad42b | 659 | c_locale_name = NULL; |
a2f00b9b LC |
660 | |
661 | if (scm_is_eq (base_locale, SCM_VARIABLE_REF (scm_global_locale))) | |
662 | { | |
663 | /* Get the current locale settings and turn them into a locale | |
664 | object. */ | |
665 | err = get_current_locale (&base_locale); | |
666 | if (err) | |
667 | goto fail; | |
668 | } | |
669 | ||
670 | c_locale->base_locale = base_locale; | |
671 | ||
672 | { | |
673 | /* Try out the new locale and raise an exception if it doesn't work. */ | |
674 | int err; | |
675 | scm_t_locale_settings prev_locale; | |
676 | ||
677 | err = enter_locale_section (c_locale, &prev_locale); | |
a2f00b9b LC |
678 | |
679 | if (err) | |
680 | goto fail; | |
681 | else | |
1445e449 LC |
682 | { |
683 | leave_locale_section (&prev_locale); | |
684 | SCM_NEWSMOB (locale, scm_tc16_locale_smob_type, c_locale); | |
685 | } | |
a2f00b9b LC |
686 | } |
687 | ||
14b59d61 AW |
688 | /* silence gcc's unused variable warning */ |
689 | (void) c_base_locale; | |
a2f00b9b LC |
690 | #endif |
691 | ||
692 | return locale; | |
693 | ||
694 | fail: | |
695 | #ifndef USE_GNU_LOCALE_API | |
696 | scm_gc_free (c_locale, sizeof (* c_locale), "locale"); | |
697 | #endif | |
698 | free (c_locale_name); | |
699 | scm_locale_error (FUNC_NAME, err); | |
700 | ||
701 | return SCM_BOOL_F; | |
702 | } | |
703 | #undef FUNC_NAME | |
704 | ||
705 | SCM_DEFINE (scm_locale_p, "locale?", 1, 0, 0, | |
706 | (SCM obj), | |
707 | "Return true if @var{obj} is a locale object.") | |
708 | #define FUNC_NAME s_scm_locale_p | |
709 | { | |
710 | return scm_from_bool (SCM_SMOB_PREDICATE (scm_tc16_locale_smob_type, obj)); | |
711 | } | |
712 | #undef FUNC_NAME | |
713 | ||
714 | ||
b89c4943 | 715 | \f |
a2f00b9b LC |
716 | /* Locale-dependent string comparison. |
717 | ||
718 | A similar API can be found in MzScheme starting from version 200: | |
719 | http://download.plt-scheme.org/chronology/mzmr200alpha14.html . */ | |
720 | ||
df047aa2 LC |
721 | #define SCM_STRING_TO_U32_BUF(s1, c_s1) \ |
722 | do \ | |
723 | { \ | |
724 | if (scm_i_is_narrow_string (s1)) \ | |
725 | { \ | |
726 | size_t i, len; \ | |
727 | const char *buf = scm_i_string_chars (s1); \ | |
728 | \ | |
729 | len = scm_i_string_length (s1); \ | |
c291b588 | 730 | c_s1 = alloca (sizeof (scm_t_wchar) * (len + 1)); \ |
df047aa2 LC |
731 | \ |
732 | for (i = 0; i < len; i ++) \ | |
733 | c_s1[i] = (unsigned char ) buf[i]; \ | |
734 | c_s1[len] = 0; \ | |
735 | } \ | |
736 | else \ | |
737 | c_s1 = (scm_t_wchar *) scm_i_string_wide_chars (s1); \ | |
738 | } while (0) | |
739 | ||
740 | ||
741 | /* Compare UTF-32 strings according to LOCALE. Returns a negative value if | |
742 | S1 compares smaller than S2, a positive value if S1 compares larger than | |
743 | S2, or 0 if they compare equal. */ | |
b89c4943 | 744 | static inline int |
5b878445 | 745 | compare_u32_strings (SCM s1, SCM s2, SCM locale, const char *func_name) |
b89c4943 LC |
746 | #define FUNC_NAME func_name |
747 | { | |
748 | int result; | |
749 | scm_t_locale c_locale; | |
5b878445 MG |
750 | scm_t_wchar *c_s1, *c_s2; |
751 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, locale, c_locale); | |
752 | ||
753 | SCM_STRING_TO_U32_BUF (s1, c_s1); | |
754 | SCM_STRING_TO_U32_BUF (s2, c_s2); | |
755 | ||
756 | if (c_locale) | |
757 | RUN_IN_LOCALE_SECTION (c_locale, | |
758 | result = u32_strcoll ((const scm_t_uint32 *) c_s1, | |
759 | (const scm_t_uint32 *) c_s2)); | |
760 | else | |
cdf52ff0 LC |
761 | result = u32_strcoll ((const scm_t_uint32 *) c_s1, |
762 | (const scm_t_uint32 *) c_s2); | |
5b878445 | 763 | |
5b878445 MG |
764 | scm_remember_upto_here_2 (s1, s2); |
765 | scm_remember_upto_here (locale); | |
766 | return result; | |
767 | } | |
768 | #undef FUNC_NAME | |
769 | ||
aafb5062 MG |
770 | /* Return the current language of the locale. */ |
771 | static const char * | |
772 | locale_language () | |
773 | { | |
96c71c58 BH |
774 | /* Note: If the locale has been set with 'uselocale', uc_locale_language |
775 | from libunistring versions 0.9.1 and older will return the incorrect | |
776 | (non-thread-specific) locale. This is fixed in versions 0.9.2 and | |
777 | newer. */ | |
aafb5062 | 778 | return uc_locale_language (); |
aafb5062 MG |
779 | } |
780 | ||
5b878445 | 781 | static inline int |
aafb5062 | 782 | u32_locale_casecoll (const char *func_name, const scm_t_uint32 *c_s1, |
c543e41e LC |
783 | const scm_t_uint32 *c_s2, |
784 | int *result) | |
5b878445 | 785 | { |
c543e41e LC |
786 | /* Note: Since this is called from `RUN_IN_LOCALE_SECTION', it must note |
787 | make any non-local exit. */ | |
5b878445 | 788 | |
c543e41e | 789 | int ret; |
aafb5062 | 790 | const char *loc = locale_language (); |
5b878445 | 791 | |
aafb5062 | 792 | ret = u32_casecoll (c_s1, u32_strlen (c_s1), |
5b878445 | 793 | c_s2, u32_strlen (c_s2), |
c543e41e | 794 | loc, UNINORM_NFC, result); |
5b878445 | 795 | |
c543e41e | 796 | return ret == 0 ? ret : errno; |
5b878445 MG |
797 | } |
798 | ||
799 | static inline int | |
800 | compare_u32_strings_ci (SCM s1, SCM s2, SCM locale, const char *func_name) | |
801 | #define FUNC_NAME func_name | |
802 | { | |
c543e41e | 803 | int result, ret = 0; |
5b878445 MG |
804 | scm_t_locale c_locale; |
805 | scm_t_wchar *c_s1, *c_s2; | |
b89c4943 | 806 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, locale, c_locale); |
9361f762 | 807 | |
5b878445 MG |
808 | SCM_STRING_TO_U32_BUF (s1, c_s1); |
809 | SCM_STRING_TO_U32_BUF (s2, c_s2); | |
810 | ||
b89c4943 | 811 | if (c_locale) |
cdf52ff0 LC |
812 | RUN_IN_LOCALE_SECTION |
813 | (c_locale, | |
c543e41e | 814 | ret = u32_locale_casecoll (func_name, |
cdf52ff0 | 815 | (const scm_t_uint32 *) c_s1, |
c543e41e LC |
816 | (const scm_t_uint32 *) c_s2, |
817 | &result)); | |
818 | else | |
819 | ret = u32_locale_casecoll (func_name, | |
820 | (const scm_t_uint32 *) c_s1, | |
821 | (const scm_t_uint32 *) c_s2, | |
822 | &result); | |
823 | ||
824 | if (SCM_UNLIKELY (ret != 0)) | |
825 | { | |
826 | errno = ret; | |
827 | scm_syserror (FUNC_NAME); | |
828 | } | |
b89c4943 | 829 | |
5b878445 MG |
830 | scm_remember_upto_here_2 (s1, s2); |
831 | scm_remember_upto_here (locale); | |
b89c4943 LC |
832 | |
833 | return result; | |
834 | } | |
835 | #undef FUNC_NAME | |
836 | ||
837 | /* Store into DST an upper-case version of SRC. */ | |
838 | static inline void | |
839 | str_upcase (register char *dst, register const char *src) | |
840 | { | |
841 | for (; *src != '\0'; src++, dst++) | |
4e641322 | 842 | *dst = toupper ((int) *src); |
b89c4943 LC |
843 | *dst = '\0'; |
844 | } | |
845 | ||
846 | static inline void | |
847 | str_downcase (register char *dst, register const char *src) | |
848 | { | |
849 | for (; *src != '\0'; src++, dst++) | |
4e641322 | 850 | *dst = tolower ((int) *src); |
b89c4943 LC |
851 | *dst = '\0'; |
852 | } | |
853 | ||
854 | #ifdef USE_GNU_LOCALE_API | |
855 | static inline void | |
856 | str_upcase_l (register char *dst, register const char *src, | |
857 | scm_t_locale locale) | |
858 | { | |
859 | for (; *src != '\0'; src++, dst++) | |
860 | *dst = toupper_l (*src, locale); | |
861 | *dst = '\0'; | |
862 | } | |
863 | ||
864 | static inline void | |
865 | str_downcase_l (register char *dst, register const char *src, | |
866 | scm_t_locale locale) | |
867 | { | |
868 | for (; *src != '\0'; src++, dst++) | |
869 | *dst = tolower_l (*src, locale); | |
870 | *dst = '\0'; | |
871 | } | |
872 | #endif | |
873 | ||
874 | ||
b89c4943 LC |
875 | SCM_DEFINE (scm_string_locale_lt, "string-locale<?", 2, 1, 0, |
876 | (SCM s1, SCM s2, SCM locale), | |
877 | "Compare strings @var{s1} and @var{s2} in a locale-dependent way." | |
878 | "If @var{locale} is provided, it should be locale object (as " | |
879 | "returned by @code{make-locale}) and will be used to perform the " | |
880 | "comparison; otherwise, the current system locale is used.") | |
881 | #define FUNC_NAME s_scm_string_locale_lt | |
9361f762 | 882 | { |
b89c4943 | 883 | int result; |
9361f762 | 884 | |
b89c4943 LC |
885 | SCM_VALIDATE_STRING (1, s1); |
886 | SCM_VALIDATE_STRING (2, s2); | |
9361f762 | 887 | |
5b878445 | 888 | result = compare_u32_strings (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
889 | |
890 | return scm_from_bool (result < 0); | |
891 | } | |
892 | #undef FUNC_NAME | |
893 | ||
894 | SCM_DEFINE (scm_string_locale_gt, "string-locale>?", 2, 1, 0, | |
895 | (SCM s1, SCM s2, SCM locale), | |
896 | "Compare strings @var{s1} and @var{s2} in a locale-dependent way." | |
897 | "If @var{locale} is provided, it should be locale object (as " | |
898 | "returned by @code{make-locale}) and will be used to perform the " | |
899 | "comparison; otherwise, the current system locale is used.") | |
900 | #define FUNC_NAME s_scm_string_locale_gt | |
901 | { | |
902 | int result; | |
b89c4943 LC |
903 | |
904 | SCM_VALIDATE_STRING (1, s1); | |
905 | SCM_VALIDATE_STRING (2, s2); | |
906 | ||
5b878445 | 907 | result = compare_u32_strings (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
908 | |
909 | return scm_from_bool (result > 0); | |
910 | } | |
911 | #undef FUNC_NAME | |
912 | ||
913 | SCM_DEFINE (scm_string_locale_ci_lt, "string-locale-ci<?", 2, 1, 0, | |
914 | (SCM s1, SCM s2, SCM locale), | |
915 | "Compare strings @var{s1} and @var{s2} in a case-insensitive, " | |
916 | "and locale-dependent way. If @var{locale} is provided, it " | |
917 | "should be locale object (as returned by @code{make-locale}) " | |
918 | "and will be used to perform the comparison; otherwise, the " | |
919 | "current system locale is used.") | |
920 | #define FUNC_NAME s_scm_string_locale_ci_lt | |
921 | { | |
922 | int result; | |
b89c4943 LC |
923 | |
924 | SCM_VALIDATE_STRING (1, s1); | |
925 | SCM_VALIDATE_STRING (2, s2); | |
926 | ||
5b878445 | 927 | result = compare_u32_strings_ci (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
928 | |
929 | return scm_from_bool (result < 0); | |
930 | } | |
931 | #undef FUNC_NAME | |
932 | ||
933 | SCM_DEFINE (scm_string_locale_ci_gt, "string-locale-ci>?", 2, 1, 0, | |
934 | (SCM s1, SCM s2, SCM locale), | |
935 | "Compare strings @var{s1} and @var{s2} in a case-insensitive, " | |
936 | "and locale-dependent way. If @var{locale} is provided, it " | |
937 | "should be locale object (as returned by @code{make-locale}) " | |
938 | "and will be used to perform the comparison; otherwise, the " | |
939 | "current system locale is used.") | |
940 | #define FUNC_NAME s_scm_string_locale_ci_gt | |
941 | { | |
942 | int result; | |
b89c4943 LC |
943 | |
944 | SCM_VALIDATE_STRING (1, s1); | |
945 | SCM_VALIDATE_STRING (2, s2); | |
946 | ||
5b878445 | 947 | result = compare_u32_strings_ci (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
948 | |
949 | return scm_from_bool (result > 0); | |
950 | } | |
951 | #undef FUNC_NAME | |
952 | ||
953 | SCM_DEFINE (scm_string_locale_ci_eq, "string-locale-ci=?", 2, 1, 0, | |
954 | (SCM s1, SCM s2, SCM locale), | |
955 | "Compare strings @var{s1} and @var{s2} in a case-insensitive, " | |
956 | "and locale-dependent way. If @var{locale} is provided, it " | |
957 | "should be locale object (as returned by @code{make-locale}) " | |
958 | "and will be used to perform the comparison; otherwise, the " | |
959 | "current system locale is used.") | |
960 | #define FUNC_NAME s_scm_string_locale_ci_eq | |
961 | { | |
962 | int result; | |
b89c4943 LC |
963 | |
964 | SCM_VALIDATE_STRING (1, s1); | |
965 | SCM_VALIDATE_STRING (2, s2); | |
966 | ||
5b878445 | 967 | result = compare_u32_strings_ci (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
968 | |
969 | return scm_from_bool (result == 0); | |
970 | } | |
971 | #undef FUNC_NAME | |
972 | ||
973 | ||
974 | SCM_DEFINE (scm_char_locale_lt, "char-locale<?", 2, 1, 0, | |
975 | (SCM c1, SCM c2, SCM locale), | |
976 | "Return true if character @var{c1} is lower than @var{c2} " | |
977 | "according to @var{locale} or to the current locale.") | |
978 | #define FUNC_NAME s_scm_char_locale_lt | |
979 | { | |
5b878445 | 980 | int result; |
b89c4943 LC |
981 | |
982 | SCM_VALIDATE_CHAR (1, c1); | |
983 | SCM_VALIDATE_CHAR (2, c2); | |
984 | ||
5b878445 MG |
985 | result = compare_u32_strings (scm_string (scm_list_1 (c1)), |
986 | scm_string (scm_list_1 (c2)), | |
987 | locale, FUNC_NAME); | |
b89c4943 | 988 | |
5b878445 | 989 | return scm_from_bool (result < 0); |
b89c4943 LC |
990 | } |
991 | #undef FUNC_NAME | |
992 | ||
993 | SCM_DEFINE (scm_char_locale_gt, "char-locale>?", 2, 1, 0, | |
994 | (SCM c1, SCM c2, SCM locale), | |
995 | "Return true if character @var{c1} is greater than @var{c2} " | |
996 | "according to @var{locale} or to the current locale.") | |
997 | #define FUNC_NAME s_scm_char_locale_gt | |
998 | { | |
5b878445 | 999 | int result; |
b89c4943 LC |
1000 | |
1001 | SCM_VALIDATE_CHAR (1, c1); | |
1002 | SCM_VALIDATE_CHAR (2, c2); | |
1003 | ||
5b878445 MG |
1004 | result = compare_u32_strings (scm_string (scm_list_1 (c1)), |
1005 | scm_string (scm_list_1 (c2)), | |
1006 | locale, FUNC_NAME); | |
b89c4943 | 1007 | |
5b878445 | 1008 | return scm_from_bool (result > 0); |
b89c4943 LC |
1009 | } |
1010 | #undef FUNC_NAME | |
1011 | ||
1012 | SCM_DEFINE (scm_char_locale_ci_lt, "char-locale-ci<?", 2, 1, 0, | |
1013 | (SCM c1, SCM c2, SCM locale), | |
1014 | "Return true if character @var{c1} is lower than @var{c2}, " | |
1015 | "in a case insensitive way according to @var{locale} or to " | |
1016 | "the current locale.") | |
1017 | #define FUNC_NAME s_scm_char_locale_ci_lt | |
1018 | { | |
1019 | int result; | |
b89c4943 LC |
1020 | |
1021 | SCM_VALIDATE_CHAR (1, c1); | |
1022 | SCM_VALIDATE_CHAR (2, c2); | |
1023 | ||
5b878445 MG |
1024 | result = compare_u32_strings_ci (scm_string (scm_list_1 (c1)), |
1025 | scm_string (scm_list_1 (c2)), | |
1026 | locale, FUNC_NAME); | |
b89c4943 LC |
1027 | |
1028 | return scm_from_bool (result < 0); | |
1029 | } | |
1030 | #undef FUNC_NAME | |
1031 | ||
1032 | SCM_DEFINE (scm_char_locale_ci_gt, "char-locale-ci>?", 2, 1, 0, | |
1033 | (SCM c1, SCM c2, SCM locale), | |
1034 | "Return true if character @var{c1} is greater than @var{c2}, " | |
1035 | "in a case insensitive way according to @var{locale} or to " | |
1036 | "the current locale.") | |
1037 | #define FUNC_NAME s_scm_char_locale_ci_gt | |
1038 | { | |
1039 | int result; | |
b89c4943 LC |
1040 | |
1041 | SCM_VALIDATE_CHAR (1, c1); | |
1042 | SCM_VALIDATE_CHAR (2, c2); | |
1043 | ||
5b878445 MG |
1044 | result = compare_u32_strings_ci (scm_string (scm_list_1 (c1)), |
1045 | scm_string (scm_list_1 (c2)), | |
1046 | locale, FUNC_NAME); | |
b89c4943 LC |
1047 | |
1048 | return scm_from_bool (result > 0); | |
1049 | } | |
1050 | #undef FUNC_NAME | |
1051 | ||
1052 | SCM_DEFINE (scm_char_locale_ci_eq, "char-locale-ci=?", 2, 1, 0, | |
1053 | (SCM c1, SCM c2, SCM locale), | |
1054 | "Return true if character @var{c1} is equal to @var{c2}, " | |
1055 | "in a case insensitive way according to @var{locale} or to " | |
1056 | "the current locale.") | |
1057 | #define FUNC_NAME s_scm_char_locale_ci_eq | |
1058 | { | |
1059 | int result; | |
b89c4943 LC |
1060 | |
1061 | SCM_VALIDATE_CHAR (1, c1); | |
1062 | SCM_VALIDATE_CHAR (2, c2); | |
1063 | ||
5b878445 MG |
1064 | result = compare_u32_strings_ci (scm_string (scm_list_1 (c1)), |
1065 | scm_string (scm_list_1 (c2)), | |
1066 | locale, FUNC_NAME); | |
b89c4943 LC |
1067 | |
1068 | return scm_from_bool (result == 0); | |
1069 | } | |
1070 | #undef FUNC_NAME | |
1071 | ||
1072 | ||
1073 | \f | |
1074 | /* Locale-dependent alphabetic character mapping. */ | |
1075 | ||
27f3413e MG |
1076 | static inline int |
1077 | u32_locale_tocase (const scm_t_uint32 *c_s1, size_t len, | |
1078 | scm_t_uint32 **p_c_s2, size_t * p_len2, | |
1079 | scm_t_uint32 *(*func) (const scm_t_uint32 *, size_t, | |
1080 | const char *, uninorm_t, | |
1081 | scm_t_uint32 *, size_t *)) | |
1082 | { | |
1083 | /* Note: Since this is called from `RUN_IN_LOCALE_SECTION', it must not | |
1084 | make any non-local exit. */ | |
1085 | ||
1086 | scm_t_uint32 *ret; | |
aafb5062 | 1087 | const char *loc = locale_language (); |
27f3413e MG |
1088 | |
1089 | /* The first NULL here indicates that no NFC or NFKC normalization | |
1090 | is done. The second NULL means the return buffer is | |
1091 | malloc'ed here. */ | |
1092 | ret = func (c_s1, len, loc, NULL, NULL, p_len2); | |
1093 | ||
1094 | if (ret == NULL) | |
1095 | { | |
2c48e4d5 | 1096 | *p_c_s2 = (scm_t_uint32 *) NULL; |
27f3413e MG |
1097 | *p_len2 = 0; |
1098 | return errno; | |
1099 | } | |
1100 | *p_c_s2 = ret; | |
aafb5062 | 1101 | |
27f3413e MG |
1102 | return 0; |
1103 | } | |
1104 | ||
1105 | ||
820f33aa JG |
1106 | static SCM |
1107 | chr_to_case (SCM chr, scm_t_locale c_locale, | |
1108 | scm_t_uint32 *(*func) (const scm_t_uint32 *, size_t, const char *, | |
1109 | uninorm_t, scm_t_uint32 *, size_t *), | |
44d3d111 | 1110 | const char *func_name, |
820f33aa | 1111 | int *err) |
44d3d111 | 1112 | #define FUNC_NAME func_name |
b89c4943 | 1113 | { |
27f3413e | 1114 | int ret; |
03976fee | 1115 | scm_t_uint32 c; |
820f33aa JG |
1116 | scm_t_uint32 *convbuf; |
1117 | size_t convlen; | |
03976fee | 1118 | SCM convchar; |
b89c4943 | 1119 | |
03976fee | 1120 | c = SCM_CHAR (chr); |
27f3413e | 1121 | |
b89c4943 | 1122 | if (c_locale != NULL) |
27f3413e | 1123 | RUN_IN_LOCALE_SECTION (c_locale, ret = |
03976fee | 1124 | u32_locale_tocase (&c, 1, &convbuf, &convlen, func)); |
27f3413e MG |
1125 | else |
1126 | ret = | |
03976fee | 1127 | u32_locale_tocase (&c, 1, &convbuf, &convlen, func); |
27f3413e MG |
1128 | |
1129 | if (SCM_UNLIKELY (ret != 0)) | |
9361f762 | 1130 | { |
820f33aa | 1131 | *err = ret; |
4d40bea6 | 1132 | return SCM_BOOL_F; |
9361f762 | 1133 | } |
27f3413e | 1134 | |
820f33aa JG |
1135 | if (convlen == 1) |
1136 | convchar = SCM_MAKE_CHAR ((scm_t_wchar) convbuf[0]); | |
b89c4943 | 1137 | else |
820f33aa JG |
1138 | convchar = chr; |
1139 | free (convbuf); | |
1140 | ||
1141 | return convchar; | |
1142 | } | |
44d3d111 | 1143 | #undef FUNC_NAME |
820f33aa JG |
1144 | |
1145 | SCM_DEFINE (scm_char_locale_downcase, "char-locale-downcase", 1, 1, 0, | |
1146 | (SCM chr, SCM locale), | |
1147 | "Return the lowercase character that corresponds to @var{chr} " | |
1148 | "according to either @var{locale} or the current locale.") | |
1149 | #define FUNC_NAME s_scm_char_locale_downcase | |
1150 | { | |
1151 | scm_t_locale c_locale; | |
1152 | SCM ret; | |
1153 | int err = 0; | |
1154 | ||
1155 | SCM_VALIDATE_CHAR (1, chr); | |
1156 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
9361f762 | 1157 | |
44d3d111 | 1158 | ret = chr_to_case (chr, c_locale, u32_tolower, FUNC_NAME, &err); |
820f33aa JG |
1159 | |
1160 | if (err != 0) | |
1161 | { | |
1162 | errno = err; | |
1163 | scm_syserror (FUNC_NAME); | |
1164 | } | |
1165 | return ret; | |
9361f762 MV |
1166 | } |
1167 | #undef FUNC_NAME | |
1168 | ||
b89c4943 LC |
1169 | SCM_DEFINE (scm_char_locale_upcase, "char-locale-upcase", 1, 1, 0, |
1170 | (SCM chr, SCM locale), | |
1171 | "Return the uppercase character that corresponds to @var{chr} " | |
1172 | "according to either @var{locale} or the current locale.") | |
1173 | #define FUNC_NAME s_scm_char_locale_upcase | |
9361f762 | 1174 | { |
b89c4943 | 1175 | scm_t_locale c_locale; |
820f33aa JG |
1176 | SCM ret; |
1177 | int err = 0; | |
b89c4943 LC |
1178 | |
1179 | SCM_VALIDATE_CHAR (1, chr); | |
b89c4943 | 1180 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); |
9361f762 | 1181 | |
44d3d111 | 1182 | ret = chr_to_case (chr, c_locale, u32_toupper, FUNC_NAME, &err); |
27f3413e | 1183 | |
820f33aa JG |
1184 | if (err != 0) |
1185 | { | |
1186 | errno = err; | |
1187 | scm_syserror (FUNC_NAME); | |
1188 | } | |
1189 | return ret; | |
1190 | } | |
1191 | #undef FUNC_NAME | |
27f3413e | 1192 | |
820f33aa JG |
1193 | SCM_DEFINE (scm_char_locale_titlecase, "char-locale-titlecase", 1, 1, 0, |
1194 | (SCM chr, SCM locale), | |
1195 | "Return the titlecase character that corresponds to @var{chr} " | |
1196 | "according to either @var{locale} or the current locale.") | |
1197 | #define FUNC_NAME s_scm_char_locale_titlecase | |
1198 | { | |
1199 | scm_t_locale c_locale; | |
1200 | SCM ret; | |
1201 | int err = 0; | |
1202 | ||
1203 | SCM_VALIDATE_CHAR (1, chr); | |
1204 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
1205 | ||
44d3d111 | 1206 | ret = chr_to_case (chr, c_locale, u32_totitle, FUNC_NAME, &err); |
820f33aa JG |
1207 | |
1208 | if (err != 0) | |
b89c4943 | 1209 | { |
820f33aa | 1210 | errno = err; |
27f3413e | 1211 | scm_syserror (FUNC_NAME); |
b89c4943 | 1212 | } |
820f33aa | 1213 | return ret; |
b89c4943 LC |
1214 | } |
1215 | #undef FUNC_NAME | |
1216 | ||
820f33aa JG |
1217 | static SCM |
1218 | str_to_case (SCM str, scm_t_locale c_locale, | |
1219 | scm_t_uint32 *(*func) (const scm_t_uint32 *, size_t, const char *, | |
1220 | uninorm_t, scm_t_uint32 *, size_t *), | |
44d3d111 | 1221 | const char *func_name, |
820f33aa | 1222 | int *err) |
44d3d111 | 1223 | #define FUNC_NAME func_name |
b89c4943 | 1224 | { |
2c48e4d5 | 1225 | scm_t_wchar *c_str, *c_buf; |
820f33aa JG |
1226 | scm_t_uint32 *c_convstr; |
1227 | size_t len, convlen; | |
27f3413e | 1228 | int ret; |
820f33aa | 1229 | SCM convstr; |
b89c4943 | 1230 | |
27f3413e MG |
1231 | len = scm_i_string_length (str); |
1232 | if (len == 0) | |
1233 | return scm_nullstr; | |
1234 | SCM_STRING_TO_U32_BUF (str, c_str); | |
b89c4943 LC |
1235 | |
1236 | if (c_locale) | |
27f3413e MG |
1237 | RUN_IN_LOCALE_SECTION (c_locale, ret = |
1238 | u32_locale_tocase ((scm_t_uint32 *) c_str, len, | |
820f33aa JG |
1239 | &c_convstr, |
1240 | &convlen, func)); | |
b89c4943 | 1241 | else |
27f3413e MG |
1242 | ret = |
1243 | u32_locale_tocase ((scm_t_uint32 *) c_str, len, | |
820f33aa | 1244 | &c_convstr, &convlen, func); |
b89c4943 LC |
1245 | |
1246 | scm_remember_upto_here (str); | |
1247 | ||
27f3413e MG |
1248 | if (SCM_UNLIKELY (ret != 0)) |
1249 | { | |
820f33aa | 1250 | *err = ret; |
4d40bea6 | 1251 | return SCM_BOOL_F; |
27f3413e MG |
1252 | } |
1253 | ||
190d4b0d | 1254 | convstr = scm_i_make_wide_string (convlen, &c_buf, 0); |
820f33aa JG |
1255 | memcpy (c_buf, c_convstr, convlen * sizeof (scm_t_wchar)); |
1256 | free (c_convstr); | |
27f3413e | 1257 | |
820f33aa | 1258 | scm_i_try_narrow_string (convstr); |
27f3413e | 1259 | |
820f33aa JG |
1260 | return convstr; |
1261 | } | |
44d3d111 | 1262 | #undef FUNC_NAME |
820f33aa JG |
1263 | |
1264 | SCM_DEFINE (scm_string_locale_upcase, "string-locale-upcase", 1, 1, 0, | |
1265 | (SCM str, SCM locale), | |
1266 | "Return a new string that is the uppercase version of " | |
1267 | "@var{str} according to either @var{locale} or the current " | |
1268 | "locale.") | |
1269 | #define FUNC_NAME s_scm_string_locale_upcase | |
1270 | { | |
1271 | scm_t_locale c_locale; | |
1272 | SCM ret; | |
1273 | int err = 0; | |
1274 | ||
1275 | SCM_VALIDATE_STRING (1, str); | |
1276 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
1277 | ||
44d3d111 | 1278 | ret = str_to_case (str, c_locale, u32_toupper, FUNC_NAME, &err); |
820f33aa JG |
1279 | |
1280 | if (err != 0) | |
1281 | { | |
1282 | errno = err; | |
1283 | scm_syserror (FUNC_NAME); | |
1284 | } | |
1285 | return ret; | |
b89c4943 LC |
1286 | } |
1287 | #undef FUNC_NAME | |
9361f762 | 1288 | |
b89c4943 LC |
1289 | SCM_DEFINE (scm_string_locale_downcase, "string-locale-downcase", 1, 1, 0, |
1290 | (SCM str, SCM locale), | |
1291 | "Return a new string that is the down-case version of " | |
1292 | "@var{str} according to either @var{locale} or the current " | |
1293 | "locale.") | |
1294 | #define FUNC_NAME s_scm_string_locale_downcase | |
1295 | { | |
b89c4943 | 1296 | scm_t_locale c_locale; |
820f33aa JG |
1297 | SCM ret; |
1298 | int err = 0; | |
b89c4943 LC |
1299 | |
1300 | SCM_VALIDATE_STRING (1, str); | |
1301 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
9361f762 | 1302 | |
44d3d111 | 1303 | ret = str_to_case (str, c_locale, u32_tolower, FUNC_NAME, &err); |
9361f762 | 1304 | |
820f33aa | 1305 | if (err != 0) |
27f3413e | 1306 | { |
820f33aa | 1307 | errno = err; |
27f3413e MG |
1308 | scm_syserror (FUNC_NAME); |
1309 | } | |
820f33aa JG |
1310 | return ret; |
1311 | } | |
1312 | #undef FUNC_NAME | |
1313 | ||
1314 | SCM_DEFINE (scm_string_locale_titlecase, "string-locale-titlecase", 1, 1, 0, | |
1315 | (SCM str, SCM locale), | |
1316 | "Return a new string that is the title-case version of " | |
1317 | "@var{str} according to either @var{locale} or the current " | |
1318 | "locale.") | |
1319 | #define FUNC_NAME s_scm_string_locale_titlecase | |
1320 | { | |
1321 | scm_t_locale c_locale; | |
1322 | SCM ret; | |
1323 | int err = 0; | |
27f3413e | 1324 | |
820f33aa JG |
1325 | SCM_VALIDATE_STRING (1, str); |
1326 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
27f3413e | 1327 | |
44d3d111 | 1328 | ret = str_to_case (str, c_locale, u32_totitle, FUNC_NAME, &err); |
27f3413e | 1329 | |
820f33aa JG |
1330 | if (err != 0) |
1331 | { | |
1332 | errno = err; | |
1333 | scm_syserror (FUNC_NAME); | |
1334 | } | |
1335 | return ret; | |
9361f762 MV |
1336 | } |
1337 | #undef FUNC_NAME | |
1338 | ||
b89c4943 LC |
1339 | /* Note: We don't provide mutative versions of `string-locale-(up|down)case' |
1340 | because, in some languages, a single downcase character maps to a couple | |
1341 | of uppercase characters. Read the SRFI-13 document for a detailed | |
1342 | discussion about this. */ | |
1343 | ||
1344 | ||
1345 | \f | |
1346 | /* Locale-dependent number parsing. */ | |
1347 | ||
1348 | SCM_DEFINE (scm_locale_string_to_integer, "locale-string->integer", | |
1349 | 1, 2, 0, (SCM str, SCM base, SCM locale), | |
1350 | "Convert string @var{str} into an integer according to either " | |
1351 | "@var{locale} (a locale object as returned by @code{make-locale}) " | |
1352 | "or the current process locale. Return two values: an integer " | |
1353 | "(on success) or @code{#f}, and the number of characters read " | |
1354 | "from @var{str} (@code{0} on failure).") | |
1355 | #define FUNC_NAME s_scm_locale_string_to_integer | |
9361f762 | 1356 | { |
9361f762 | 1357 | SCM result; |
b89c4943 LC |
1358 | long c_result; |
1359 | int c_base; | |
1360 | const char *c_str; | |
1361 | char *c_endptr; | |
1362 | scm_t_locale c_locale; | |
9361f762 | 1363 | |
b89c4943 LC |
1364 | SCM_VALIDATE_STRING (1, str); |
1365 | c_str = scm_i_string_chars (str); | |
9361f762 | 1366 | |
d223c3fc | 1367 | if (!scm_is_eq (base, SCM_UNDEFINED)) |
b89c4943 | 1368 | SCM_VALIDATE_INT_COPY (2, base, c_base); |
9361f762 | 1369 | else |
b89c4943 LC |
1370 | c_base = 10; |
1371 | ||
1372 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, locale, c_locale); | |
1373 | ||
1374 | if (c_locale != NULL) | |
9361f762 | 1375 | { |
b89c4943 LC |
1376 | #ifdef USE_GNU_LOCALE_API |
1377 | c_result = strtol_l (c_str, &c_endptr, c_base, c_locale); | |
1378 | #else | |
1379 | RUN_IN_LOCALE_SECTION (c_locale, | |
1380 | c_result = strtol (c_str, &c_endptr, c_base)); | |
1381 | #endif | |
9361f762 | 1382 | } |
b89c4943 LC |
1383 | else |
1384 | c_result = strtol (c_str, &c_endptr, c_base); | |
1385 | ||
1386 | scm_remember_upto_here (str); | |
1387 | ||
1388 | if (c_endptr == c_str) | |
1389 | result = SCM_BOOL_F; | |
1390 | else | |
1391 | result = scm_from_long (c_result); | |
1392 | ||
1393 | return (scm_values (scm_list_2 (result, scm_from_long (c_endptr - c_str)))); | |
1394 | } | |
1395 | #undef FUNC_NAME | |
1396 | ||
1397 | SCM_DEFINE (scm_locale_string_to_inexact, "locale-string->inexact", | |
1398 | 1, 1, 0, (SCM str, SCM locale), | |
1399 | "Convert string @var{str} into an inexact number according to " | |
1400 | "either @var{locale} (a locale object as returned by " | |
1401 | "@code{make-locale}) or the current process locale. Return " | |
1402 | "two values: an inexact number (on success) or @code{#f}, and " | |
1403 | "the number of characters read from @var{str} (@code{0} on " | |
1404 | "failure).") | |
1405 | #define FUNC_NAME s_scm_locale_string_to_inexact | |
1406 | { | |
1407 | SCM result; | |
1408 | double c_result; | |
1409 | const char *c_str; | |
1410 | char *c_endptr; | |
1411 | scm_t_locale c_locale; | |
9361f762 | 1412 | |
b89c4943 LC |
1413 | SCM_VALIDATE_STRING (1, str); |
1414 | c_str = scm_i_string_chars (str); | |
9361f762 | 1415 | |
b89c4943 | 1416 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); |
9361f762 | 1417 | |
b89c4943 LC |
1418 | if (c_locale != NULL) |
1419 | { | |
1420 | #ifdef USE_GNU_LOCALE_API | |
1421 | c_result = strtod_l (c_str, &c_endptr, c_locale); | |
1422 | #else | |
1423 | RUN_IN_LOCALE_SECTION (c_locale, | |
1424 | c_result = strtod (c_str, &c_endptr)); | |
1425 | #endif | |
1426 | } | |
9361f762 | 1427 | else |
b89c4943 LC |
1428 | c_result = strtod (c_str, &c_endptr); |
1429 | ||
1430 | scm_remember_upto_here (str); | |
1431 | ||
1432 | if (c_endptr == c_str) | |
9361f762 | 1433 | result = SCM_BOOL_F; |
b89c4943 LC |
1434 | else |
1435 | result = scm_from_double (c_result); | |
9361f762 | 1436 | |
b89c4943 | 1437 | return (scm_values (scm_list_2 (result, scm_from_long (c_endptr - c_str)))); |
9361f762 MV |
1438 | } |
1439 | #undef FUNC_NAME | |
1440 | ||
b89c4943 | 1441 | \f |
a2f00b9b LC |
1442 | /* Language information, aka. `nl_langinfo ()'. */ |
1443 | ||
1444 | /* FIXME: Issues related to `nl-langinfo'. | |
1445 | ||
1446 | 1. The `CODESET' value is not normalized. This is a secondary issue, but | |
1447 | still a practical issue. See | |
1448 | http://www.cl.cam.ac.uk/~mgk25/ucs/norm_charmap.c for codeset | |
1449 | normalization. | |
1450 | ||
1451 | 2. `nl_langinfo ()' is not available on Windows. | |
1452 | ||
1453 | 3. `nl_langinfo ()' may return strings encoded in a locale different from | |
52642040 MG |
1454 | the current one. |
1455 | For example: | |
a2f00b9b LC |
1456 | |
1457 | (nl-langinfo DAY_1 (make-locale LC_ALL "eo_EO.UTF-8")) | |
1458 | ||
52642040 MG |
1459 | returns a result that is a UTF-8 string, regardless of the |
1460 | setting of the current locale. If nl_langinfo supports CODESET, | |
1461 | we can convert the string properly using scm_from_stringn. If | |
1462 | CODESET is not supported, we won't be able to make much sense of | |
56d288b8 LC |
1463 | the returned string. |
1464 | ||
1465 | Note: We don't use Gnulib's `nl_langinfo' module because it's currently not | |
1466 | as complete as the compatibility hacks in `i18n.scm'. */ | |
a2f00b9b | 1467 | |
cfefef6b MW |
1468 | static char * |
1469 | copy_string_or_null (const char *s) | |
1470 | { | |
1471 | if (s == NULL) | |
1472 | return NULL; | |
1473 | else | |
1474 | return strdup (s); | |
1475 | } | |
a2f00b9b LC |
1476 | |
1477 | SCM_DEFINE (scm_nl_langinfo, "nl-langinfo", 1, 1, 0, | |
1478 | (SCM item, SCM locale), | |
1479 | "Return a string denoting locale information for @var{item} " | |
1480 | "in the current locale or that specified by @var{locale}. " | |
1481 | "The semantics and arguments are the same as those of the " | |
1482 | "X/Open @code{nl_langinfo} function (@pxref{The Elegant and " | |
1483 | "Fast Way, @code{nl_langinfo},, libc, The GNU C Library " | |
1484 | "Reference Manual}).") | |
1485 | #define FUNC_NAME s_scm_nl_langinfo | |
1486 | { | |
a2f00b9b LC |
1487 | SCM result; |
1488 | nl_item c_item; | |
1489 | char *c_result; | |
1490 | scm_t_locale c_locale; | |
52642040 | 1491 | char *codeset; |
a2f00b9b LC |
1492 | |
1493 | SCM_VALIDATE_INT_COPY (2, item, c_item); | |
1494 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
1495 | ||
1496 | /* Sadly, `nl_langinfo ()' returns a pointer to a static string. According | |
1497 | to SuS v2, that static string may be modified by subsequent calls to | |
1498 | `nl_langinfo ()' as well as by calls to `setlocale ()'. Thus, we must | |
1499 | acquire the locale mutex before doing invoking `nl_langinfo ()'. See | |
1500 | http://opengroup.org/onlinepubs/007908799/xsh/nl_langinfo.html for | |
1501 | details. */ | |
1502 | ||
073167ef | 1503 | lock_locale_mutex (); |
a2f00b9b LC |
1504 | if (c_locale != NULL) |
1505 | { | |
1506 | #ifdef USE_GNU_LOCALE_API | |
cfefef6b MW |
1507 | c_result = copy_string_or_null (nl_langinfo_l (c_item, c_locale)); |
1508 | codeset = copy_string_or_null (nl_langinfo_l (CODESET, c_locale)); | |
52642040 | 1509 | #else /* !USE_GNU_LOCALE_API */ |
a2f00b9b LC |
1510 | /* We can't use `RUN_IN_LOCALE_SECTION ()' here because the locale |
1511 | mutex is already taken. */ | |
1512 | int lsec_err; | |
1513 | scm_t_locale_settings lsec_prev_locale; | |
1514 | ||
1515 | lsec_err = get_current_locale_settings (&lsec_prev_locale); | |
1516 | if (lsec_err) | |
073167ef | 1517 | unlock_locale_mutex (); |
a2f00b9b LC |
1518 | else |
1519 | { | |
1520 | lsec_err = install_locale (c_locale); | |
1521 | if (lsec_err) | |
1522 | { | |
1523 | leave_locale_section (&lsec_prev_locale); | |
1524 | free_locale_settings (&lsec_prev_locale); | |
1525 | } | |
1526 | } | |
1527 | ||
1528 | if (lsec_err) | |
1529 | scm_locale_error (FUNC_NAME, lsec_err); | |
1530 | else | |
1531 | { | |
cfefef6b MW |
1532 | c_result = copy_string_or_null (nl_langinfo (c_item)); |
1533 | codeset = copy_string_or_null (nl_langinfo (CODESET)); | |
a2f00b9b | 1534 | |
1445e449 | 1535 | restore_locale_settings (&lsec_prev_locale); |
a2f00b9b LC |
1536 | free_locale_settings (&lsec_prev_locale); |
1537 | } | |
1538 | #endif | |
1539 | } | |
1540 | else | |
52642040 | 1541 | { |
cfefef6b MW |
1542 | c_result = copy_string_or_null (nl_langinfo (c_item)); |
1543 | codeset = copy_string_or_null (nl_langinfo (CODESET)); | |
52642040 | 1544 | } |
a2f00b9b | 1545 | |
073167ef | 1546 | unlock_locale_mutex (); |
a2f00b9b LC |
1547 | |
1548 | if (c_result == NULL) | |
1549 | result = SCM_BOOL_F; | |
1550 | else | |
1551 | { | |
a2f00b9b LC |
1552 | switch (c_item) |
1553 | { | |
afb49959 | 1554 | #if (defined GROUPING) && (defined MON_GROUPING) |
a2f00b9b LC |
1555 | case GROUPING: |
1556 | case MON_GROUPING: | |
a2f00b9b | 1557 | { |
afb49959 | 1558 | char *p; |
a2f00b9b | 1559 | |
914c4300 LC |
1560 | /* In this cases, the result is to be interpreted as a list |
1561 | of numbers. If the last item is `CHAR_MAX' or a negative | |
1562 | number, it has the special meaning "no more grouping" | |
1563 | (negative numbers aren't specified in POSIX but can be | |
1564 | used by glibc; see | |
1565 | <http://lists.gnu.org/archive/html/bug-guile/2011-02/msg00159.html>). */ | |
afb49959 | 1566 | result = SCM_EOL; |
914c4300 | 1567 | for (p = c_result; (*p > 0) && (*p != CHAR_MAX); p++) |
afb49959 | 1568 | result = scm_cons (SCM_I_MAKINUM ((int) *p), result); |
a2f00b9b | 1569 | |
afb49959 LC |
1570 | { |
1571 | SCM last_pair = result; | |
a2f00b9b | 1572 | |
afb49959 LC |
1573 | result = scm_reverse_x (result, SCM_EOL); |
1574 | ||
914c4300 | 1575 | if (*p == 0) |
afb49959 LC |
1576 | { |
1577 | /* Cyclic grouping information. */ | |
393baa8a | 1578 | if (!scm_is_null (last_pair)) |
afb49959 LC |
1579 | SCM_SETCDR (last_pair, result); |
1580 | } | |
1581 | } | |
a2f00b9b | 1582 | |
afb49959 LC |
1583 | free (c_result); |
1584 | break; | |
1585 | } | |
1586 | #endif | |
1587 | ||
c7161ee3 EZ |
1588 | #if defined FRAC_DIGITS || defined INT_FRAC_DIGITS |
1589 | #ifdef FRAC_DIGITS | |
a2f00b9b | 1590 | case FRAC_DIGITS: |
c7161ee3 EZ |
1591 | #endif |
1592 | #ifdef INT_FRAC_DIGITS | |
a2f00b9b | 1593 | case INT_FRAC_DIGITS: |
c7161ee3 | 1594 | #endif |
a2f00b9b LC |
1595 | /* This is to be interpreted as a single integer. */ |
1596 | if (*c_result == CHAR_MAX) | |
1597 | /* Unspecified. */ | |
1598 | result = SCM_BOOL_F; | |
1599 | else | |
1600 | result = SCM_I_MAKINUM (*c_result); | |
1601 | ||
1602 | free (c_result); | |
1603 | break; | |
afb49959 | 1604 | #endif |
a2f00b9b | 1605 | |
c7161ee3 EZ |
1606 | #if defined P_CS_PRECEDES || defined N_CS_PRECEDES || \ |
1607 | defined INT_P_CS_PRECEDES || defined INT_N_CS_PRECEDES || \ | |
1608 | defined P_SEP_BY_SPACE || defined N_SEP_BY_SPACE | |
1609 | #ifdef P_CS_PRECEDES | |
a2f00b9b LC |
1610 | case P_CS_PRECEDES: |
1611 | case N_CS_PRECEDES: | |
c7161ee3 EZ |
1612 | #endif |
1613 | #ifdef INT_N_CS_PRECEDES | |
a2f00b9b LC |
1614 | case INT_P_CS_PRECEDES: |
1615 | case INT_N_CS_PRECEDES: | |
c7161ee3 EZ |
1616 | #endif |
1617 | #ifdef P_SEP_BY_SPACE | |
a2f00b9b LC |
1618 | case P_SEP_BY_SPACE: |
1619 | case N_SEP_BY_SPACE: | |
afb49959 | 1620 | #endif |
a2f00b9b LC |
1621 | /* This is to be interpreted as a boolean. */ |
1622 | result = scm_from_bool (*c_result); | |
1623 | ||
1624 | free (c_result); | |
1625 | break; | |
afb49959 | 1626 | #endif |
a2f00b9b | 1627 | |
c7161ee3 EZ |
1628 | #if defined P_SIGN_POSN || defined N_SIGN_POSN || \ |
1629 | defined INT_P_SIGN_POSN || defined INT_N_SIGN_POSN | |
1630 | #ifdef P_SIGN_POSN | |
a2f00b9b LC |
1631 | case P_SIGN_POSN: |
1632 | case N_SIGN_POSN: | |
c7161ee3 EZ |
1633 | #endif |
1634 | #ifdef INT_P_SIGN_POSN | |
a2f00b9b LC |
1635 | case INT_P_SIGN_POSN: |
1636 | case INT_N_SIGN_POSN: | |
c7161ee3 | 1637 | #endif |
a2f00b9b LC |
1638 | /* See `(libc) Sign of Money Amount' for the interpretation of the |
1639 | return value here. */ | |
1640 | switch (*c_result) | |
1641 | { | |
1642 | case 0: | |
4a655e50 | 1643 | result = scm_from_latin1_symbol ("parenthesize"); |
a2f00b9b LC |
1644 | break; |
1645 | ||
1646 | case 1: | |
4a655e50 | 1647 | result = scm_from_latin1_symbol ("sign-before"); |
a2f00b9b LC |
1648 | break; |
1649 | ||
1650 | case 2: | |
4a655e50 | 1651 | result = scm_from_latin1_symbol ("sign-after"); |
a2f00b9b LC |
1652 | break; |
1653 | ||
1654 | case 3: | |
4a655e50 | 1655 | result = scm_from_latin1_symbol ("sign-before-currency-symbol"); |
a2f00b9b LC |
1656 | break; |
1657 | ||
1658 | case 4: | |
4a655e50 | 1659 | result = scm_from_latin1_symbol ("sign-after-currency-symbol"); |
a2f00b9b LC |
1660 | break; |
1661 | ||
1662 | default: | |
4a655e50 | 1663 | result = scm_from_latin1_symbol ("unspecified"); |
a2f00b9b | 1664 | } |
e22ad42b | 1665 | free (c_result); |
a2f00b9b | 1666 | break; |
afb49959 | 1667 | #endif |
a2f00b9b LC |
1668 | |
1669 | default: | |
52642040 MG |
1670 | result = scm_from_stringn (c_result, strlen (c_result), |
1671 | codeset, | |
1672 | SCM_FAILED_CONVERSION_QUESTION_MARK); | |
b8fc11d2 | 1673 | free (c_result); |
a2f00b9b LC |
1674 | } |
1675 | } | |
1676 | ||
cfefef6b MW |
1677 | if (codeset != NULL) |
1678 | free (codeset); | |
1679 | ||
a2f00b9b | 1680 | return result; |
a2f00b9b LC |
1681 | } |
1682 | #undef FUNC_NAME | |
1683 | ||
1684 | /* Define the `nl_item' constants. */ | |
1685 | static inline void | |
1686 | define_langinfo_items (void) | |
9361f762 | 1687 | { |
a2f00b9b LC |
1688 | #define DEFINE_NLITEM_CONSTANT(_item) \ |
1689 | scm_c_define (# _item, scm_from_int (_item)) | |
1690 | ||
1691 | DEFINE_NLITEM_CONSTANT (CODESET); | |
1692 | ||
1693 | /* Abbreviated days of the week. */ | |
1694 | DEFINE_NLITEM_CONSTANT (ABDAY_1); | |
1695 | DEFINE_NLITEM_CONSTANT (ABDAY_2); | |
1696 | DEFINE_NLITEM_CONSTANT (ABDAY_3); | |
1697 | DEFINE_NLITEM_CONSTANT (ABDAY_4); | |
1698 | DEFINE_NLITEM_CONSTANT (ABDAY_5); | |
1699 | DEFINE_NLITEM_CONSTANT (ABDAY_6); | |
1700 | DEFINE_NLITEM_CONSTANT (ABDAY_7); | |
1701 | ||
1702 | /* Long-named days of the week. */ | |
1703 | DEFINE_NLITEM_CONSTANT (DAY_1); /* Sunday */ | |
1704 | DEFINE_NLITEM_CONSTANT (DAY_2); /* Monday */ | |
1705 | DEFINE_NLITEM_CONSTANT (DAY_3); /* Tuesday */ | |
1706 | DEFINE_NLITEM_CONSTANT (DAY_4); /* Wednesday */ | |
1707 | DEFINE_NLITEM_CONSTANT (DAY_5); /* Thursday */ | |
1708 | DEFINE_NLITEM_CONSTANT (DAY_6); /* Friday */ | |
1709 | DEFINE_NLITEM_CONSTANT (DAY_7); /* Saturday */ | |
1710 | ||
1711 | /* Abbreviated month names. */ | |
1712 | DEFINE_NLITEM_CONSTANT (ABMON_1); /* Jan */ | |
1713 | DEFINE_NLITEM_CONSTANT (ABMON_2); | |
1714 | DEFINE_NLITEM_CONSTANT (ABMON_3); | |
1715 | DEFINE_NLITEM_CONSTANT (ABMON_4); | |
1716 | DEFINE_NLITEM_CONSTANT (ABMON_5); | |
1717 | DEFINE_NLITEM_CONSTANT (ABMON_6); | |
1718 | DEFINE_NLITEM_CONSTANT (ABMON_7); | |
1719 | DEFINE_NLITEM_CONSTANT (ABMON_8); | |
1720 | DEFINE_NLITEM_CONSTANT (ABMON_9); | |
1721 | DEFINE_NLITEM_CONSTANT (ABMON_10); | |
1722 | DEFINE_NLITEM_CONSTANT (ABMON_11); | |
1723 | DEFINE_NLITEM_CONSTANT (ABMON_12); | |
1724 | ||
1725 | /* Long month names. */ | |
1726 | DEFINE_NLITEM_CONSTANT (MON_1); /* January */ | |
1727 | DEFINE_NLITEM_CONSTANT (MON_2); | |
1728 | DEFINE_NLITEM_CONSTANT (MON_3); | |
1729 | DEFINE_NLITEM_CONSTANT (MON_4); | |
1730 | DEFINE_NLITEM_CONSTANT (MON_5); | |
1731 | DEFINE_NLITEM_CONSTANT (MON_6); | |
1732 | DEFINE_NLITEM_CONSTANT (MON_7); | |
1733 | DEFINE_NLITEM_CONSTANT (MON_8); | |
1734 | DEFINE_NLITEM_CONSTANT (MON_9); | |
1735 | DEFINE_NLITEM_CONSTANT (MON_10); | |
1736 | DEFINE_NLITEM_CONSTANT (MON_11); | |
1737 | DEFINE_NLITEM_CONSTANT (MON_12); | |
1738 | ||
1739 | DEFINE_NLITEM_CONSTANT (AM_STR); /* Ante meridiem string. */ | |
1740 | DEFINE_NLITEM_CONSTANT (PM_STR); /* Post meridiem string. */ | |
1741 | ||
1742 | DEFINE_NLITEM_CONSTANT (D_T_FMT); /* Date and time format for strftime. */ | |
1743 | DEFINE_NLITEM_CONSTANT (D_FMT); /* Date format for strftime. */ | |
1744 | DEFINE_NLITEM_CONSTANT (T_FMT); /* Time format for strftime. */ | |
1745 | DEFINE_NLITEM_CONSTANT (T_FMT_AMPM);/* 12-hour time format for strftime. */ | |
1746 | ||
1bd9a697 | 1747 | #ifdef ERA |
a2f00b9b | 1748 | DEFINE_NLITEM_CONSTANT (ERA); /* Alternate era. */ |
1bd9a697 CJY |
1749 | #endif |
1750 | #ifdef ERA_D_FMT | |
a2f00b9b | 1751 | DEFINE_NLITEM_CONSTANT (ERA_D_FMT); /* Date in alternate era format. */ |
1bd9a697 CJY |
1752 | #endif |
1753 | #ifdef ERA_D_T_FMT | |
a2f00b9b LC |
1754 | DEFINE_NLITEM_CONSTANT (ERA_D_T_FMT); /* Date and time in alternate era |
1755 | format. */ | |
1bd9a697 CJY |
1756 | #endif |
1757 | #ifdef ERA_T_FMT | |
a2f00b9b | 1758 | DEFINE_NLITEM_CONSTANT (ERA_T_FMT); /* Time in alternate era format. */ |
1bd9a697 | 1759 | #endif |
a2f00b9b | 1760 | |
1bd9a697 | 1761 | #ifdef ALT_DIGITS |
a2f00b9b | 1762 | DEFINE_NLITEM_CONSTANT (ALT_DIGITS); /* Alternate symbols for digits. */ |
1bd9a697 | 1763 | #endif |
a2f00b9b LC |
1764 | DEFINE_NLITEM_CONSTANT (RADIXCHAR); |
1765 | DEFINE_NLITEM_CONSTANT (THOUSEP); | |
1766 | ||
1767 | #ifdef YESEXPR | |
1768 | DEFINE_NLITEM_CONSTANT (YESEXPR); | |
1769 | #endif | |
1770 | #ifdef NOEXPR | |
1771 | DEFINE_NLITEM_CONSTANT (NOEXPR); | |
1772 | #endif | |
b89c4943 | 1773 | |
a2f00b9b LC |
1774 | #ifdef CRNCYSTR /* currency symbol */ |
1775 | DEFINE_NLITEM_CONSTANT (CRNCYSTR); | |
1776 | #endif | |
b89c4943 | 1777 | |
a2f00b9b | 1778 | /* GNU extensions. */ |
b89c4943 | 1779 | |
a2f00b9b LC |
1780 | #ifdef ERA_YEAR |
1781 | DEFINE_NLITEM_CONSTANT (ERA_YEAR); /* Year in alternate era format. */ | |
1782 | #endif | |
b89c4943 | 1783 | |
a2f00b9b LC |
1784 | /* LC_MONETARY category: formatting of monetary quantities. |
1785 | These items each correspond to a member of `struct lconv', | |
1786 | defined in <locale.h>. */ | |
1787 | #ifdef INT_CURR_SYMBOL | |
1788 | DEFINE_NLITEM_CONSTANT (INT_CURR_SYMBOL); | |
1789 | #endif | |
1790 | #ifdef MON_DECIMAL_POINT | |
1791 | DEFINE_NLITEM_CONSTANT (MON_DECIMAL_POINT); | |
1792 | #endif | |
1793 | #ifdef MON_THOUSANDS_SEP | |
1794 | DEFINE_NLITEM_CONSTANT (MON_THOUSANDS_SEP); | |
1795 | #endif | |
1796 | #ifdef MON_GROUPING | |
1797 | DEFINE_NLITEM_CONSTANT (MON_GROUPING); | |
1798 | #endif | |
1799 | #ifdef POSITIVE_SIGN | |
1800 | DEFINE_NLITEM_CONSTANT (POSITIVE_SIGN); | |
1801 | #endif | |
1802 | #ifdef NEGATIVE_SIGN | |
1803 | DEFINE_NLITEM_CONSTANT (NEGATIVE_SIGN); | |
1804 | #endif | |
1805 | #ifdef GROUPING | |
1806 | DEFINE_NLITEM_CONSTANT (GROUPING); | |
1807 | #endif | |
1808 | #ifdef INT_FRAC_DIGITS | |
1809 | DEFINE_NLITEM_CONSTANT (INT_FRAC_DIGITS); | |
1810 | #endif | |
1811 | #ifdef FRAC_DIGITS | |
1812 | DEFINE_NLITEM_CONSTANT (FRAC_DIGITS); | |
1813 | #endif | |
1814 | #ifdef P_CS_PRECEDES | |
1815 | DEFINE_NLITEM_CONSTANT (P_CS_PRECEDES); | |
1816 | #endif | |
1817 | #ifdef P_SEP_BY_SPACE | |
1818 | DEFINE_NLITEM_CONSTANT (P_SEP_BY_SPACE); | |
1819 | #endif | |
1820 | #ifdef N_CS_PRECEDES | |
1821 | DEFINE_NLITEM_CONSTANT (N_CS_PRECEDES); | |
1822 | #endif | |
1823 | #ifdef N_SEP_BY_SPACE | |
1824 | DEFINE_NLITEM_CONSTANT (N_SEP_BY_SPACE); | |
1825 | #endif | |
1826 | #ifdef P_SIGN_POSN | |
1827 | DEFINE_NLITEM_CONSTANT (P_SIGN_POSN); | |
1828 | #endif | |
1829 | #ifdef N_SIGN_POSN | |
1830 | DEFINE_NLITEM_CONSTANT (N_SIGN_POSN); | |
1831 | #endif | |
1832 | #ifdef INT_P_CS_PRECEDES | |
1833 | DEFINE_NLITEM_CONSTANT (INT_P_CS_PRECEDES); | |
1834 | #endif | |
1835 | #ifdef INT_P_SEP_BY_SPACE | |
1836 | DEFINE_NLITEM_CONSTANT (INT_P_SEP_BY_SPACE); | |
1837 | #endif | |
1838 | #ifdef INT_N_CS_PRECEDES | |
1839 | DEFINE_NLITEM_CONSTANT (INT_N_CS_PRECEDES); | |
1840 | #endif | |
1841 | #ifdef INT_N_SEP_BY_SPACE | |
1842 | DEFINE_NLITEM_CONSTANT (INT_N_SEP_BY_SPACE); | |
1843 | #endif | |
1844 | #ifdef INT_P_SIGN_POSN | |
1845 | DEFINE_NLITEM_CONSTANT (INT_P_SIGN_POSN); | |
1846 | #endif | |
1847 | #ifdef INT_N_SIGN_POSN | |
1848 | DEFINE_NLITEM_CONSTANT (INT_N_SIGN_POSN); | |
1849 | #endif | |
1850 | ||
1851 | #undef DEFINE_NLITEM_CONSTANT | |
a2f00b9b LC |
1852 | } |
1853 | ||
1854 | \f | |
1855 | void | |
1856 | scm_init_i18n () | |
1857 | { | |
1858 | SCM global_locale_smob; | |
1859 | ||
a2f00b9b LC |
1860 | scm_add_feature ("nl-langinfo"); |
1861 | define_langinfo_items (); | |
b89c4943 | 1862 | |
9361f762 | 1863 | #include "libguile/i18n.x" |
b89c4943 | 1864 | |
a2f00b9b | 1865 | /* Initialize the global locale object with a special `locale' SMOB. */ |
c3b16a5d LC |
1866 | /* XXX: We don't define it as `LC_GLOBAL_LOCALE' because of bugs as of |
1867 | glibc <= 2.11 not (yet) worked around by Gnulib. See | |
1868 | http://sourceware.org/bugzilla/show_bug.cgi?id=11009 for details. */ | |
a2f00b9b LC |
1869 | SCM_NEWSMOB (global_locale_smob, scm_tc16_locale_smob_type, NULL); |
1870 | SCM_VARIABLE_SET (scm_global_locale, global_locale_smob); | |
9361f762 MV |
1871 | } |
1872 | ||
756e8a3a LC |
1873 | void |
1874 | scm_bootstrap_i18n () | |
1875 | { | |
44602b08 AW |
1876 | scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION, |
1877 | "scm_init_i18n", | |
756e8a3a LC |
1878 | (scm_t_extension_init_func) scm_init_i18n, |
1879 | NULL); | |
1880 | ||
1881 | } | |
1882 | ||
9361f762 MV |
1883 | |
1884 | /* | |
1885 | Local Variables: | |
1886 | c-file-style: "gnu" | |
1887 | End: | |
1888 | */ |