Commit | Line | Data |
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49c9839e | 1 | /* Copyright (C) 2006, 2007, 2008, 2009 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 | #if (defined USE_GNU_LOCALE_API) && (defined HAVE_XLOCALE_H) |
61 | # include <xlocale.h> | |
62 | #endif | |
63 | ||
64 | #include "libguile/posix.h" /* for `scm_i_locale_mutex' */ | |
65 | ||
66 | #if (defined HAVE_LANGINFO_H) && (defined HAVE_NL_TYPES_H) | |
67 | # include <langinfo.h> | |
68 | # include <nl_types.h> | |
9361f762 | 69 | #endif |
b89c4943 LC |
70 | |
71 | #ifndef HAVE_SETLOCALE | |
72 | static inline char * | |
73 | setlocale (int category, const char *name) | |
74 | { | |
75 | errno = ENOSYS; | |
76 | return NULL; | |
77 | } | |
9361f762 | 78 | #endif |
b89c4943 | 79 | |
a2f00b9b LC |
80 | /* Helper stringification macro. */ |
81 | #define SCM_I18N_STRINGIFY(_name) # _name | |
82 | ||
b89c4943 LC |
83 | |
84 | \f | |
85 | /* Locale objects, string and character collation, and other locale-dependent | |
86 | string operations. | |
87 | ||
88 | A large part of the code here deals with emulating glibc's reentrant | |
89 | locale API on non-GNU systems. The emulation is a bit "brute-force": | |
90 | Whenever a `-locale<?' procedure is passed a locale object, then: | |
91 | ||
a2f00b9b | 92 | 1. The `scm_i_locale_mutex' is locked. |
b89c4943 | 93 | 2. A series of `setlocale ()' call is performed to store the current |
a2f00b9b | 94 | locale for each category in an `scm_t_locale' object. |
b89c4943 LC |
95 | 3. A series of `setlocale ()' call is made to install each of the locale |
96 | categories of each of the base locales of each locale object, | |
97 | recursively, starting from the last locale object of the chain. | |
98 | 4. The settings captured in step (2) are restored. | |
a2f00b9b | 99 | 5. The `scm_i_locale_mutex' is released. |
b89c4943 | 100 | |
a2f00b9b | 101 | Hopefully, the X/Open standard will eventually make this hack useless. |
b89c4943 LC |
102 | |
103 | Note: We don't wrap glibc's `uselocale ()' call because it sets the locale | |
104 | of the current _thread_ (unlike `setlocale ()') and doing so would require | |
105 | maintaining per-thread locale information on non-GNU systems and always | |
106 | re-installing this locale upon locale-dependent calls. */ | |
107 | ||
108 | ||
a2f00b9b LC |
109 | /* Return the category mask corresponding to CAT. */ |
110 | #define SCM_LOCALE_CATEGORY_MASK(_cat) LC_ ## _cat ## _MASK | |
111 | ||
112 | ||
b89c4943 LC |
113 | #ifndef USE_GNU_LOCALE_API |
114 | ||
a2f00b9b LC |
115 | /* Provide the locale category masks as found in glibc. This must be kept in |
116 | sync with `locale-categories.h'. */ | |
b89c4943 | 117 | |
a2f00b9b LC |
118 | # define LC_CTYPE_MASK 1 |
119 | # define LC_COLLATE_MASK 2 | |
120 | # define LC_MESSAGES_MASK 4 | |
121 | # define LC_MONETARY_MASK 8 | |
122 | # define LC_NUMERIC_MASK 16 | |
123 | # define LC_TIME_MASK 32 | |
b89c4943 LC |
124 | |
125 | # ifdef LC_PAPER | |
a2f00b9b | 126 | # define LC_PAPER_MASK 64 |
b89c4943 LC |
127 | # else |
128 | # define LC_PAPER_MASK 0 | |
129 | # endif | |
130 | # ifdef LC_NAME | |
a2f00b9b | 131 | # define LC_NAME_MASK 128 |
b89c4943 LC |
132 | # else |
133 | # define LC_NAME_MASK 0 | |
134 | # endif | |
135 | # ifdef LC_ADDRESS | |
a2f00b9b | 136 | # define LC_ADDRESS_MASK 256 |
b89c4943 LC |
137 | # else |
138 | # define LC_ADDRESS_MASK 0 | |
139 | # endif | |
140 | # ifdef LC_TELEPHONE | |
a2f00b9b | 141 | # define LC_TELEPHONE_MASK 512 |
b89c4943 LC |
142 | # else |
143 | # define LC_TELEPHONE_MASK 0 | |
144 | # endif | |
145 | # ifdef LC_MEASUREMENT | |
a2f00b9b | 146 | # define LC_MEASUREMENT_MASK 1024 |
b89c4943 LC |
147 | # else |
148 | # define LC_MEASUREMENT_MASK 0 | |
149 | # endif | |
150 | # ifdef LC_IDENTIFICATION | |
a2f00b9b | 151 | # define LC_IDENTIFICATION_MASK 2048 |
b89c4943 LC |
152 | # else |
153 | # define LC_IDENTIFICATION_MASK 0 | |
154 | # endif | |
155 | ||
a2f00b9b LC |
156 | # define LC_ALL_MASK (LC_CTYPE_MASK \ |
157 | | LC_NUMERIC_MASK \ | |
158 | | LC_TIME_MASK \ | |
159 | | LC_COLLATE_MASK \ | |
160 | | LC_MONETARY_MASK \ | |
161 | | LC_MESSAGES_MASK \ | |
162 | | LC_PAPER_MASK \ | |
163 | | LC_NAME_MASK \ | |
164 | | LC_ADDRESS_MASK \ | |
165 | | LC_TELEPHONE_MASK \ | |
166 | | LC_MEASUREMENT_MASK \ | |
167 | | LC_IDENTIFICATION_MASK \ | |
b89c4943 LC |
168 | ) |
169 | ||
170 | /* Locale objects as returned by `make-locale' on non-GNU systems. */ | |
171 | typedef struct scm_locale | |
172 | { | |
173 | SCM base_locale; /* a `locale' object */ | |
174 | char *locale_name; | |
175 | int category_mask; | |
176 | } *scm_t_locale; | |
177 | ||
a2f00b9b LC |
178 | |
179 | /* Free the resources used by LOCALE. */ | |
180 | static inline void | |
181 | scm_i_locale_free (scm_t_locale locale) | |
182 | { | |
183 | free (locale->locale_name); | |
184 | locale->locale_name = NULL; | |
185 | } | |
186 | ||
187 | #else /* USE_GNU_LOCALE_API */ | |
b89c4943 LC |
188 | |
189 | /* Alias for glibc's locale type. */ | |
190 | typedef locale_t scm_t_locale; | |
191 | ||
a2f00b9b LC |
192 | #define scm_i_locale_free freelocale |
193 | ||
194 | #endif /* USE_GNU_LOCALE_API */ | |
195 | ||
196 | ||
197 | /* A locale object denoting the global locale. */ | |
198 | SCM_GLOBAL_VARIABLE (scm_global_locale, "%global-locale"); | |
199 | ||
b89c4943 LC |
200 | |
201 | /* Validate parameter ARG as a locale object and set C_LOCALE to the | |
202 | corresponding C locale object. */ | |
203 | #define SCM_VALIDATE_LOCALE_COPY(_pos, _arg, _c_locale) \ | |
204 | do \ | |
205 | { \ | |
206 | SCM_VALIDATE_SMOB ((_pos), (_arg), locale_smob_type); \ | |
207 | (_c_locale) = (scm_t_locale)SCM_SMOB_DATA (_arg); \ | |
208 | } \ | |
209 | while (0) | |
210 | ||
211 | /* Validate optional parameter ARG as either undefined or bound to a locale | |
212 | object. Set C_LOCALE to the corresponding C locale object or NULL. */ | |
213 | #define SCM_VALIDATE_OPTIONAL_LOCALE_COPY(_pos, _arg, _c_locale) \ | |
214 | do \ | |
215 | { \ | |
216 | if ((_arg) != SCM_UNDEFINED) \ | |
217 | SCM_VALIDATE_LOCALE_COPY (_pos, _arg, _c_locale); \ | |
218 | else \ | |
219 | (_c_locale) = NULL; \ | |
220 | } \ | |
221 | while (0) | |
222 | ||
223 | ||
224 | SCM_SMOB (scm_tc16_locale_smob_type, "locale", 0); | |
225 | ||
226 | SCM_SMOB_FREE (scm_tc16_locale_smob_type, smob_locale_free, locale) | |
227 | { | |
228 | scm_t_locale c_locale; | |
229 | ||
a2f00b9b LC |
230 | c_locale = (scm_t_locale) SCM_SMOB_DATA (locale); |
231 | scm_i_locale_free (c_locale); | |
b89c4943 LC |
232 | |
233 | return 0; | |
234 | } | |
235 | ||
9361f762 | 236 | |
a2f00b9b | 237 | static void inline scm_locale_error (const char *, int) SCM_NORETURN; |
b89c4943 | 238 | |
a2f00b9b LC |
239 | /* Throw an exception corresponding to error ERR. */ |
240 | static void inline | |
241 | scm_locale_error (const char *func_name, int err) | |
242 | { | |
243 | scm_syserror_msg (func_name, | |
244 | "Failed to install locale", | |
245 | SCM_EOL, err); | |
b89c4943 | 246 | } |
b89c4943 LC |
247 | |
248 | ||
249 | \f | |
a2f00b9b LC |
250 | /* Emulating GNU's reentrant locale API. */ |
251 | #ifndef USE_GNU_LOCALE_API | |
b89c4943 LC |
252 | |
253 | ||
254 | /* Maximum number of chained locales (via `base_locale'). */ | |
255 | #define LOCALE_STACK_SIZE_MAX 256 | |
256 | ||
257 | typedef struct | |
258 | { | |
259 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) char * _name; | |
260 | #include "locale-categories.h" | |
261 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
262 | } scm_t_locale_settings; | |
263 | ||
264 | /* Fill out SETTINGS according to the current locale settings. On success | |
265 | zero is returned and SETTINGS is properly initialized. */ | |
266 | static int | |
267 | get_current_locale_settings (scm_t_locale_settings *settings) | |
268 | { | |
269 | const char *locale_name; | |
270 | ||
271 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
272 | { \ | |
273 | SCM_SYSCALL (locale_name = setlocale (LC_ ## _name, NULL)); \ | |
a2f00b9b | 274 | if (locale_name == NULL) \ |
b89c4943 LC |
275 | goto handle_error; \ |
276 | \ | |
277 | settings-> _name = strdup (locale_name); \ | |
278 | if (settings-> _name == NULL) \ | |
279 | goto handle_oom; \ | |
280 | } | |
281 | ||
282 | #include "locale-categories.h" | |
283 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
284 | ||
285 | return 0; | |
286 | ||
287 | handle_error: | |
a2f00b9b | 288 | return EINVAL; |
9361f762 | 289 | |
b89c4943 LC |
290 | handle_oom: |
291 | return ENOMEM; | |
292 | } | |
293 | ||
294 | /* Restore locale settings SETTINGS. On success, return zero. */ | |
295 | static int | |
296 | restore_locale_settings (const scm_t_locale_settings *settings) | |
297 | { | |
298 | const char *result; | |
299 | ||
300 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
301 | SCM_SYSCALL (result = setlocale (LC_ ## _name, settings-> _name)); \ | |
302 | if (result == NULL) \ | |
303 | goto handle_error; | |
304 | ||
305 | #include "locale-categories.h" | |
306 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
307 | ||
308 | return 0; | |
309 | ||
310 | handle_error: | |
a2f00b9b | 311 | return EINVAL; |
b89c4943 LC |
312 | } |
313 | ||
314 | /* Free memory associated with SETTINGS. */ | |
315 | static void | |
316 | free_locale_settings (scm_t_locale_settings *settings) | |
317 | { | |
318 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
319 | free (settings-> _name); \ | |
320 | settings->_name = NULL; | |
321 | #include "locale-categories.h" | |
322 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
323 | } | |
9361f762 | 324 | |
b89c4943 LC |
325 | /* Install the locale named LOCALE_NAME for all the categories listed in |
326 | CATEGORY_MASK. */ | |
327 | static int | |
328 | install_locale_categories (const char *locale_name, int category_mask) | |
329 | { | |
330 | const char *result; | |
9361f762 | 331 | |
b89c4943 | 332 | if (category_mask == LC_ALL_MASK) |
9361f762 | 333 | { |
b89c4943 LC |
334 | SCM_SYSCALL (result = setlocale (LC_ALL, locale_name)); |
335 | if (result == NULL) | |
336 | goto handle_error; | |
9361f762 MV |
337 | } |
338 | else | |
339 | { | |
b89c4943 | 340 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ |
a2f00b9b | 341 | if (category_mask & SCM_LOCALE_CATEGORY_MASK (_name)) \ |
b89c4943 LC |
342 | { \ |
343 | SCM_SYSCALL (result = setlocale (LC_ ## _name, locale_name)); \ | |
344 | if (result == NULL) \ | |
345 | goto handle_error; \ | |
346 | } | |
347 | #include "locale-categories.h" | |
348 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
349 | } | |
9361f762 | 350 | |
b89c4943 | 351 | return 0; |
9361f762 | 352 | |
b89c4943 | 353 | handle_error: |
a2f00b9b | 354 | return EINVAL; |
b89c4943 LC |
355 | } |
356 | ||
357 | /* Install LOCALE, recursively installing its base locales first. On | |
358 | success, zero is returned. */ | |
359 | static int | |
360 | install_locale (scm_t_locale locale) | |
361 | { | |
362 | scm_t_locale stack[LOCALE_STACK_SIZE_MAX]; | |
a2f00b9b | 363 | int category_mask = 0; |
b89c4943 LC |
364 | size_t stack_size = 0; |
365 | int stack_offset = 0; | |
366 | const char *result = NULL; | |
367 | ||
368 | /* Build up a locale stack by traversing the `base_locale' link. */ | |
369 | do | |
370 | { | |
371 | if (stack_size >= LOCALE_STACK_SIZE_MAX) | |
372 | /* We cannot use `scm_error ()' here because otherwise the locale | |
373 | mutex may remain locked. */ | |
374 | return EINVAL; | |
375 | ||
376 | stack[stack_size++] = locale; | |
377 | ||
a2f00b9b LC |
378 | /* Keep track of which categories have already been taken into |
379 | account. */ | |
380 | category_mask |= locale->category_mask; | |
381 | ||
b89c4943 | 382 | if (locale->base_locale != SCM_UNDEFINED) |
a2f00b9b | 383 | locale = (scm_t_locale) SCM_SMOB_DATA (locale->base_locale); |
9361f762 | 384 | else |
b89c4943 LC |
385 | locale = NULL; |
386 | } | |
a2f00b9b | 387 | while ((locale != NULL) && (category_mask != LC_ALL_MASK)); |
9361f762 | 388 | |
b89c4943 LC |
389 | /* Install the C locale to start from a pristine state. */ |
390 | SCM_SYSCALL (result = setlocale (LC_ALL, "C")); | |
391 | if (result == NULL) | |
392 | goto handle_error; | |
393 | ||
394 | /* Install the locales in reverse order. */ | |
395 | for (stack_offset = stack_size - 1; | |
396 | stack_offset >= 0; | |
397 | stack_offset--) | |
398 | { | |
399 | int err; | |
400 | scm_t_locale locale; | |
401 | ||
402 | locale = stack[stack_offset]; | |
403 | err = install_locale_categories (locale->locale_name, | |
404 | locale->category_mask); | |
405 | if (err) | |
406 | goto handle_error; | |
9361f762 MV |
407 | } |
408 | ||
b89c4943 | 409 | return 0; |
9361f762 | 410 | |
b89c4943 | 411 | handle_error: |
a2f00b9b | 412 | return EINVAL; |
9361f762 | 413 | } |
9361f762 | 414 | |
b89c4943 LC |
415 | /* Leave the locked locale section. */ |
416 | static inline void | |
417 | leave_locale_section (const scm_t_locale_settings *settings) | |
418 | { | |
419 | /* Restore the previous locale settings. */ | |
420 | (void)restore_locale_settings (settings); | |
421 | ||
422 | scm_i_pthread_mutex_unlock (&scm_i_locale_mutex); | |
423 | } | |
9361f762 | 424 | |
b89c4943 LC |
425 | /* Enter a locked locale section. */ |
426 | static inline int | |
427 | enter_locale_section (scm_t_locale locale, | |
428 | scm_t_locale_settings *prev_locale) | |
9361f762 | 429 | { |
b89c4943 LC |
430 | int err; |
431 | ||
432 | scm_i_pthread_mutex_lock (&scm_i_locale_mutex); | |
433 | ||
434 | err = get_current_locale_settings (prev_locale); | |
435 | if (err) | |
436 | { | |
437 | scm_i_pthread_mutex_unlock (&scm_i_locale_mutex); | |
438 | return err; | |
439 | } | |
9361f762 | 440 | |
b89c4943 LC |
441 | err = install_locale (locale); |
442 | if (err) | |
443 | { | |
444 | leave_locale_section (prev_locale); | |
445 | free_locale_settings (prev_locale); | |
446 | } | |
447 | ||
448 | return err; | |
449 | } | |
450 | ||
b89c4943 LC |
451 | /* Convenient macro to run STATEMENT in the locale context of C_LOCALE. */ |
452 | #define RUN_IN_LOCALE_SECTION(_c_locale, _statement) \ | |
453 | do \ | |
454 | { \ | |
455 | int lsec_err; \ | |
456 | scm_t_locale_settings lsec_prev_locale; \ | |
457 | \ | |
458 | lsec_err = enter_locale_section ((_c_locale), &lsec_prev_locale); \ | |
459 | if (lsec_err) \ | |
460 | scm_locale_error (FUNC_NAME, lsec_err); \ | |
461 | else \ | |
462 | { \ | |
463 | _statement ; \ | |
464 | \ | |
465 | leave_locale_section (&lsec_prev_locale); \ | |
466 | free_locale_settings (&lsec_prev_locale); \ | |
467 | } \ | |
468 | } \ | |
469 | while (0) | |
470 | ||
a2f00b9b LC |
471 | /* Convert the current locale settings into a locale SMOB. On success, zero |
472 | is returned and RESULT points to the new SMOB. Otherwise, an error is | |
473 | returned. */ | |
474 | static int | |
475 | get_current_locale (SCM *result) | |
476 | { | |
477 | int err = 0; | |
478 | scm_t_locale c_locale; | |
479 | const char *current_locale; | |
480 | ||
481 | c_locale = scm_gc_malloc (sizeof (* c_locale), "locale"); | |
482 | ||
483 | ||
484 | scm_i_pthread_mutex_lock (&scm_i_locale_mutex); | |
485 | ||
486 | c_locale->category_mask = LC_ALL_MASK; | |
487 | c_locale->base_locale = SCM_UNDEFINED; | |
488 | ||
489 | current_locale = setlocale (LC_ALL, NULL); | |
490 | if (current_locale != NULL) | |
491 | { | |
492 | c_locale->locale_name = strdup (current_locale); | |
493 | if (c_locale->locale_name == NULL) | |
494 | err = ENOMEM; | |
495 | } | |
496 | else | |
497 | err = EINVAL; | |
498 | ||
499 | scm_i_pthread_mutex_unlock (&scm_i_locale_mutex); | |
500 | ||
501 | if (err) | |
502 | scm_gc_free (c_locale, sizeof (* c_locale), "locale"); | |
503 | else | |
504 | SCM_NEWSMOB (*result, scm_tc16_locale_smob_type, c_locale); | |
505 | ||
506 | return err; | |
507 | } | |
508 | ||
5b878445 | 509 | #else /* USE_GNU_LOCALE_API */ |
a2f00b9b | 510 | |
5b878445 | 511 | /* Convenient macro to run STATEMENT in the locale context of C_LOCALE. */ |
12f0c3e5 LC |
512 | #define RUN_IN_LOCALE_SECTION(_c_locale, _statement) \ |
513 | do \ | |
514 | { \ | |
515 | scm_t_locale old_loc; \ | |
516 | \ | |
517 | old_loc = uselocale (_c_locale); \ | |
518 | _statement ; \ | |
519 | uselocale (old_loc); \ | |
520 | } \ | |
5b878445 MG |
521 | while (0) |
522 | ||
523 | ||
524 | #endif /* USE_GNU_LOCALE_API */ | |
9361f762 | 525 | |
a2f00b9b LC |
526 | |
527 | \f | |
528 | /* `make-locale' can take either category lists or single categories (the | |
529 | `LC_*' integer constants). */ | |
530 | #define SCM_LIST_OR_INTEGER_P(arg) \ | |
531 | (scm_is_integer (arg) || scm_is_true (scm_list_p (arg))) | |
532 | ||
533 | ||
534 | /* Return the category mask corresponding to CATEGORY (an `LC_' integer | |
535 | constant). */ | |
536 | static inline int | |
537 | category_to_category_mask (SCM category, | |
538 | const char *func_name, int pos) | |
539 | { | |
540 | int c_category; | |
541 | int c_category_mask; | |
542 | ||
543 | c_category = scm_to_int (category); | |
544 | ||
545 | #define SCM_DEFINE_LOCALE_CATEGORY(_name) \ | |
546 | case LC_ ## _name: \ | |
547 | c_category_mask = SCM_LOCALE_CATEGORY_MASK (_name); \ | |
548 | break; | |
549 | ||
550 | switch (c_category) | |
551 | { | |
552 | #include "locale-categories.h" | |
553 | ||
554 | case LC_ALL: | |
555 | c_category_mask = LC_ALL_MASK; | |
556 | break; | |
557 | ||
558 | default: | |
559 | scm_wrong_type_arg_msg (func_name, pos, category, | |
560 | "locale category"); | |
561 | } | |
562 | ||
563 | #undef SCM_DEFINE_LOCALE_CATEGORY | |
564 | ||
565 | return c_category_mask; | |
566 | } | |
567 | ||
568 | /* Convert CATEGORIES, a list of locale categories or a single category (an | |
569 | integer), into a category mask. */ | |
570 | static int | |
571 | category_list_to_category_mask (SCM categories, | |
572 | const char *func_name, int pos) | |
573 | { | |
574 | int c_category_mask = 0; | |
575 | ||
576 | if (scm_is_integer (categories)) | |
577 | c_category_mask = category_to_category_mask (categories, | |
578 | func_name, pos); | |
579 | else | |
580 | for (; !scm_is_null (categories); categories = SCM_CDR (categories)) | |
581 | { | |
582 | SCM category = SCM_CAR (categories); | |
583 | ||
584 | c_category_mask |= | |
585 | category_to_category_mask (category, func_name, pos); | |
586 | } | |
587 | ||
588 | return c_category_mask; | |
589 | } | |
590 | ||
591 | ||
592 | SCM_DEFINE (scm_make_locale, "make-locale", 2, 1, 0, | |
593 | (SCM category_list, SCM locale_name, SCM base_locale), | |
594 | "Return a reference to a data structure representing a set of " | |
595 | "locale datasets. @var{category_list} should be either a list " | |
596 | "of locale categories or a single category as used with " | |
597 | "@code{setlocale} (@pxref{Locales, @code{setlocale}}) and " | |
598 | "@var{locale_name} should be the name of the locale considered " | |
599 | "(e.g., @code{\"sl_SI\"}). Optionally, if @code{base_locale} is " | |
600 | "passed, it should be a locale object denoting settings for " | |
601 | "categories not listed in @var{category_list}.") | |
602 | #define FUNC_NAME s_scm_make_locale | |
603 | { | |
604 | SCM locale = SCM_BOOL_F; | |
605 | int err = 0; | |
606 | int c_category_mask; | |
607 | char *c_locale_name; | |
608 | scm_t_locale c_base_locale, c_locale; | |
609 | ||
610 | SCM_MAKE_VALIDATE (1, category_list, LIST_OR_INTEGER_P); | |
611 | SCM_VALIDATE_STRING (2, locale_name); | |
612 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, base_locale, c_base_locale); | |
613 | ||
614 | c_category_mask = category_list_to_category_mask (category_list, | |
615 | FUNC_NAME, 1); | |
616 | c_locale_name = scm_to_locale_string (locale_name); | |
617 | ||
618 | #ifdef USE_GNU_LOCALE_API | |
619 | ||
620 | if (scm_is_eq (base_locale, SCM_VARIABLE_REF (scm_global_locale))) | |
621 | { | |
622 | /* Fetch the current locale and turn in into a `locale_t'. Don't | |
623 | duplicate the resulting `locale_t' because we want it to be consumed | |
624 | by `newlocale ()'. */ | |
625 | char *current_locale; | |
626 | ||
627 | scm_i_pthread_mutex_lock (&scm_i_locale_mutex); | |
628 | ||
629 | current_locale = setlocale (LC_ALL, NULL); | |
630 | c_base_locale = newlocale (LC_ALL_MASK, current_locale, NULL); | |
631 | ||
632 | scm_i_pthread_mutex_unlock (&scm_i_locale_mutex); | |
633 | ||
634 | if (c_base_locale == (locale_t) 0) | |
635 | scm_locale_error (FUNC_NAME, errno); | |
636 | } | |
637 | else if (c_base_locale != (locale_t) 0) | |
638 | { | |
639 | /* C_BASE_LOCALE is to be consumed by `newlocale ()' so it needs to be | |
640 | duplicated before. */ | |
641 | c_base_locale = duplocale (c_base_locale); | |
642 | if (c_base_locale == (locale_t) 0) | |
643 | { | |
644 | err = errno; | |
645 | goto fail; | |
646 | } | |
647 | } | |
648 | ||
649 | c_locale = newlocale (c_category_mask, c_locale_name, c_base_locale); | |
650 | ||
651 | free (c_locale_name); | |
652 | ||
653 | if (c_locale == (locale_t) 0) | |
654 | { | |
655 | if (scm_is_eq (base_locale, SCM_VARIABLE_REF (scm_global_locale))) | |
656 | /* The base locale object was created lazily and must be freed. */ | |
657 | freelocale (c_base_locale); | |
658 | ||
659 | scm_locale_error (FUNC_NAME, errno); | |
660 | } | |
661 | else | |
662 | SCM_NEWSMOB (locale, scm_tc16_locale_smob_type, c_locale); | |
663 | ||
664 | #else | |
665 | ||
666 | c_locale = scm_gc_malloc (sizeof (* c_locale), "locale"); | |
667 | ||
668 | c_locale->category_mask = c_category_mask; | |
669 | c_locale->locale_name = c_locale_name; | |
670 | ||
671 | if (scm_is_eq (base_locale, SCM_VARIABLE_REF (scm_global_locale))) | |
672 | { | |
673 | /* Get the current locale settings and turn them into a locale | |
674 | object. */ | |
675 | err = get_current_locale (&base_locale); | |
676 | if (err) | |
677 | goto fail; | |
678 | } | |
679 | ||
680 | c_locale->base_locale = base_locale; | |
681 | ||
682 | { | |
683 | /* Try out the new locale and raise an exception if it doesn't work. */ | |
684 | int err; | |
685 | scm_t_locale_settings prev_locale; | |
686 | ||
687 | err = enter_locale_section (c_locale, &prev_locale); | |
a2f00b9b LC |
688 | |
689 | if (err) | |
690 | goto fail; | |
691 | else | |
1445e449 LC |
692 | { |
693 | leave_locale_section (&prev_locale); | |
694 | SCM_NEWSMOB (locale, scm_tc16_locale_smob_type, c_locale); | |
695 | } | |
a2f00b9b LC |
696 | } |
697 | ||
698 | #endif | |
699 | ||
700 | return locale; | |
701 | ||
702 | fail: | |
703 | #ifndef USE_GNU_LOCALE_API | |
704 | scm_gc_free (c_locale, sizeof (* c_locale), "locale"); | |
705 | #endif | |
706 | free (c_locale_name); | |
707 | scm_locale_error (FUNC_NAME, err); | |
708 | ||
709 | return SCM_BOOL_F; | |
710 | } | |
711 | #undef FUNC_NAME | |
712 | ||
713 | SCM_DEFINE (scm_locale_p, "locale?", 1, 0, 0, | |
714 | (SCM obj), | |
715 | "Return true if @var{obj} is a locale object.") | |
716 | #define FUNC_NAME s_scm_locale_p | |
717 | { | |
718 | return scm_from_bool (SCM_SMOB_PREDICATE (scm_tc16_locale_smob_type, obj)); | |
719 | } | |
720 | #undef FUNC_NAME | |
721 | ||
722 | ||
b89c4943 | 723 | \f |
a2f00b9b LC |
724 | /* Locale-dependent string comparison. |
725 | ||
726 | A similar API can be found in MzScheme starting from version 200: | |
727 | http://download.plt-scheme.org/chronology/mzmr200alpha14.html . */ | |
728 | ||
df047aa2 LC |
729 | #define SCM_STRING_TO_U32_BUF(s1, c_s1) \ |
730 | do \ | |
731 | { \ | |
732 | if (scm_i_is_narrow_string (s1)) \ | |
733 | { \ | |
734 | size_t i, len; \ | |
735 | const char *buf = scm_i_string_chars (s1); \ | |
736 | \ | |
737 | len = scm_i_string_length (s1); \ | |
738 | c_s1 = (scm_t_wchar *) alloca (sizeof (scm_t_wchar) * (len + 1)); \ | |
739 | \ | |
740 | for (i = 0; i < len; i ++) \ | |
741 | c_s1[i] = (unsigned char ) buf[i]; \ | |
742 | c_s1[len] = 0; \ | |
743 | } \ | |
744 | else \ | |
745 | c_s1 = (scm_t_wchar *) scm_i_string_wide_chars (s1); \ | |
746 | } while (0) | |
747 | ||
748 | ||
749 | /* Compare UTF-32 strings according to LOCALE. Returns a negative value if | |
750 | S1 compares smaller than S2, a positive value if S1 compares larger than | |
751 | S2, or 0 if they compare equal. */ | |
b89c4943 | 752 | static inline int |
5b878445 | 753 | compare_u32_strings (SCM s1, SCM s2, SCM locale, const char *func_name) |
b89c4943 LC |
754 | #define FUNC_NAME func_name |
755 | { | |
756 | int result; | |
757 | scm_t_locale c_locale; | |
5b878445 MG |
758 | scm_t_wchar *c_s1, *c_s2; |
759 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, locale, c_locale); | |
760 | ||
761 | SCM_STRING_TO_U32_BUF (s1, c_s1); | |
762 | SCM_STRING_TO_U32_BUF (s2, c_s2); | |
763 | ||
764 | if (c_locale) | |
765 | RUN_IN_LOCALE_SECTION (c_locale, | |
766 | result = u32_strcoll ((const scm_t_uint32 *) c_s1, | |
767 | (const scm_t_uint32 *) c_s2)); | |
768 | else | |
cdf52ff0 LC |
769 | result = u32_strcoll ((const scm_t_uint32 *) c_s1, |
770 | (const scm_t_uint32 *) c_s2); | |
5b878445 | 771 | |
5b878445 MG |
772 | scm_remember_upto_here_2 (s1, s2); |
773 | scm_remember_upto_here (locale); | |
774 | return result; | |
775 | } | |
776 | #undef FUNC_NAME | |
777 | ||
778 | static inline int | |
779 | u32_locale_casecoll (const char *func_name, const scm_t_uint32 *c_s1, | |
c543e41e LC |
780 | const scm_t_uint32 *c_s2, |
781 | int *result) | |
5b878445 | 782 | { |
c543e41e LC |
783 | /* Note: Since this is called from `RUN_IN_LOCALE_SECTION', it must note |
784 | make any non-local exit. */ | |
5b878445 | 785 | |
c543e41e LC |
786 | int ret; |
787 | const char *loc = uc_locale_language (); | |
5b878445 MG |
788 | |
789 | ret = u32_casecoll (c_s1, u32_strlen (c_s1), | |
790 | c_s2, u32_strlen (c_s2), | |
c543e41e | 791 | loc, UNINORM_NFC, result); |
5b878445 | 792 | |
c543e41e | 793 | return ret == 0 ? ret : errno; |
5b878445 MG |
794 | } |
795 | ||
796 | static inline int | |
797 | compare_u32_strings_ci (SCM s1, SCM s2, SCM locale, const char *func_name) | |
798 | #define FUNC_NAME func_name | |
799 | { | |
c543e41e | 800 | int result, ret = 0; |
5b878445 MG |
801 | scm_t_locale c_locale; |
802 | scm_t_wchar *c_s1, *c_s2; | |
b89c4943 | 803 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, locale, c_locale); |
9361f762 | 804 | |
5b878445 MG |
805 | SCM_STRING_TO_U32_BUF (s1, c_s1); |
806 | SCM_STRING_TO_U32_BUF (s2, c_s2); | |
807 | ||
b89c4943 | 808 | if (c_locale) |
cdf52ff0 LC |
809 | RUN_IN_LOCALE_SECTION |
810 | (c_locale, | |
c543e41e | 811 | ret = u32_locale_casecoll (func_name, |
cdf52ff0 | 812 | (const scm_t_uint32 *) c_s1, |
c543e41e LC |
813 | (const scm_t_uint32 *) c_s2, |
814 | &result)); | |
815 | else | |
816 | ret = u32_locale_casecoll (func_name, | |
817 | (const scm_t_uint32 *) c_s1, | |
818 | (const scm_t_uint32 *) c_s2, | |
819 | &result); | |
820 | ||
821 | if (SCM_UNLIKELY (ret != 0)) | |
822 | { | |
823 | errno = ret; | |
824 | scm_syserror (FUNC_NAME); | |
825 | } | |
b89c4943 | 826 | |
5b878445 MG |
827 | scm_remember_upto_here_2 (s1, s2); |
828 | scm_remember_upto_here (locale); | |
b89c4943 LC |
829 | |
830 | return result; | |
831 | } | |
832 | #undef FUNC_NAME | |
833 | ||
834 | /* Store into DST an upper-case version of SRC. */ | |
835 | static inline void | |
836 | str_upcase (register char *dst, register const char *src) | |
837 | { | |
838 | for (; *src != '\0'; src++, dst++) | |
4e641322 | 839 | *dst = toupper ((int) *src); |
b89c4943 LC |
840 | *dst = '\0'; |
841 | } | |
842 | ||
843 | static inline void | |
844 | str_downcase (register char *dst, register const char *src) | |
845 | { | |
846 | for (; *src != '\0'; src++, dst++) | |
4e641322 | 847 | *dst = tolower ((int) *src); |
b89c4943 LC |
848 | *dst = '\0'; |
849 | } | |
850 | ||
851 | #ifdef USE_GNU_LOCALE_API | |
852 | static inline void | |
853 | str_upcase_l (register char *dst, register const char *src, | |
854 | scm_t_locale locale) | |
855 | { | |
856 | for (; *src != '\0'; src++, dst++) | |
857 | *dst = toupper_l (*src, locale); | |
858 | *dst = '\0'; | |
859 | } | |
860 | ||
861 | static inline void | |
862 | str_downcase_l (register char *dst, register const char *src, | |
863 | scm_t_locale locale) | |
864 | { | |
865 | for (; *src != '\0'; src++, dst++) | |
866 | *dst = tolower_l (*src, locale); | |
867 | *dst = '\0'; | |
868 | } | |
869 | #endif | |
870 | ||
871 | ||
b89c4943 LC |
872 | SCM_DEFINE (scm_string_locale_lt, "string-locale<?", 2, 1, 0, |
873 | (SCM s1, SCM s2, SCM locale), | |
874 | "Compare strings @var{s1} and @var{s2} in a locale-dependent way." | |
875 | "If @var{locale} is provided, it should be locale object (as " | |
876 | "returned by @code{make-locale}) and will be used to perform the " | |
877 | "comparison; otherwise, the current system locale is used.") | |
878 | #define FUNC_NAME s_scm_string_locale_lt | |
9361f762 | 879 | { |
b89c4943 | 880 | int result; |
9361f762 | 881 | |
b89c4943 LC |
882 | SCM_VALIDATE_STRING (1, s1); |
883 | SCM_VALIDATE_STRING (2, s2); | |
9361f762 | 884 | |
5b878445 | 885 | result = compare_u32_strings (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
886 | |
887 | return scm_from_bool (result < 0); | |
888 | } | |
889 | #undef FUNC_NAME | |
890 | ||
891 | SCM_DEFINE (scm_string_locale_gt, "string-locale>?", 2, 1, 0, | |
892 | (SCM s1, SCM s2, SCM locale), | |
893 | "Compare strings @var{s1} and @var{s2} in a locale-dependent way." | |
894 | "If @var{locale} is provided, it should be locale object (as " | |
895 | "returned by @code{make-locale}) and will be used to perform the " | |
896 | "comparison; otherwise, the current system locale is used.") | |
897 | #define FUNC_NAME s_scm_string_locale_gt | |
898 | { | |
899 | int result; | |
b89c4943 LC |
900 | |
901 | SCM_VALIDATE_STRING (1, s1); | |
902 | SCM_VALIDATE_STRING (2, s2); | |
903 | ||
5b878445 | 904 | result = compare_u32_strings (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
905 | |
906 | return scm_from_bool (result > 0); | |
907 | } | |
908 | #undef FUNC_NAME | |
909 | ||
910 | SCM_DEFINE (scm_string_locale_ci_lt, "string-locale-ci<?", 2, 1, 0, | |
911 | (SCM s1, SCM s2, SCM locale), | |
912 | "Compare strings @var{s1} and @var{s2} in a case-insensitive, " | |
913 | "and locale-dependent way. If @var{locale} is provided, it " | |
914 | "should be locale object (as returned by @code{make-locale}) " | |
915 | "and will be used to perform the comparison; otherwise, the " | |
916 | "current system locale is used.") | |
917 | #define FUNC_NAME s_scm_string_locale_ci_lt | |
918 | { | |
919 | int result; | |
b89c4943 LC |
920 | |
921 | SCM_VALIDATE_STRING (1, s1); | |
922 | SCM_VALIDATE_STRING (2, s2); | |
923 | ||
5b878445 | 924 | result = compare_u32_strings_ci (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
925 | |
926 | return scm_from_bool (result < 0); | |
927 | } | |
928 | #undef FUNC_NAME | |
929 | ||
930 | SCM_DEFINE (scm_string_locale_ci_gt, "string-locale-ci>?", 2, 1, 0, | |
931 | (SCM s1, SCM s2, SCM locale), | |
932 | "Compare strings @var{s1} and @var{s2} in a case-insensitive, " | |
933 | "and locale-dependent way. If @var{locale} is provided, it " | |
934 | "should be locale object (as returned by @code{make-locale}) " | |
935 | "and will be used to perform the comparison; otherwise, the " | |
936 | "current system locale is used.") | |
937 | #define FUNC_NAME s_scm_string_locale_ci_gt | |
938 | { | |
939 | int result; | |
b89c4943 LC |
940 | |
941 | SCM_VALIDATE_STRING (1, s1); | |
942 | SCM_VALIDATE_STRING (2, s2); | |
943 | ||
5b878445 | 944 | result = compare_u32_strings_ci (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
945 | |
946 | return scm_from_bool (result > 0); | |
947 | } | |
948 | #undef FUNC_NAME | |
949 | ||
950 | SCM_DEFINE (scm_string_locale_ci_eq, "string-locale-ci=?", 2, 1, 0, | |
951 | (SCM s1, SCM s2, SCM locale), | |
952 | "Compare strings @var{s1} and @var{s2} in a case-insensitive, " | |
953 | "and locale-dependent way. If @var{locale} is provided, it " | |
954 | "should be locale object (as returned by @code{make-locale}) " | |
955 | "and will be used to perform the comparison; otherwise, the " | |
956 | "current system locale is used.") | |
957 | #define FUNC_NAME s_scm_string_locale_ci_eq | |
958 | { | |
959 | int result; | |
b89c4943 LC |
960 | |
961 | SCM_VALIDATE_STRING (1, s1); | |
962 | SCM_VALIDATE_STRING (2, s2); | |
963 | ||
5b878445 | 964 | result = compare_u32_strings_ci (s1, s2, locale, FUNC_NAME); |
b89c4943 LC |
965 | |
966 | return scm_from_bool (result == 0); | |
967 | } | |
968 | #undef FUNC_NAME | |
969 | ||
970 | ||
971 | SCM_DEFINE (scm_char_locale_lt, "char-locale<?", 2, 1, 0, | |
972 | (SCM c1, SCM c2, SCM locale), | |
973 | "Return true if character @var{c1} is lower than @var{c2} " | |
974 | "according to @var{locale} or to the current locale.") | |
975 | #define FUNC_NAME s_scm_char_locale_lt | |
976 | { | |
5b878445 | 977 | int result; |
b89c4943 LC |
978 | |
979 | SCM_VALIDATE_CHAR (1, c1); | |
980 | SCM_VALIDATE_CHAR (2, c2); | |
981 | ||
5b878445 MG |
982 | result = compare_u32_strings (scm_string (scm_list_1 (c1)), |
983 | scm_string (scm_list_1 (c2)), | |
984 | locale, FUNC_NAME); | |
b89c4943 | 985 | |
5b878445 | 986 | return scm_from_bool (result < 0); |
b89c4943 LC |
987 | } |
988 | #undef FUNC_NAME | |
989 | ||
990 | SCM_DEFINE (scm_char_locale_gt, "char-locale>?", 2, 1, 0, | |
991 | (SCM c1, SCM c2, SCM locale), | |
992 | "Return true if character @var{c1} is greater than @var{c2} " | |
993 | "according to @var{locale} or to the current locale.") | |
994 | #define FUNC_NAME s_scm_char_locale_gt | |
995 | { | |
5b878445 | 996 | int result; |
b89c4943 LC |
997 | |
998 | SCM_VALIDATE_CHAR (1, c1); | |
999 | SCM_VALIDATE_CHAR (2, c2); | |
1000 | ||
5b878445 MG |
1001 | result = compare_u32_strings (scm_string (scm_list_1 (c1)), |
1002 | scm_string (scm_list_1 (c2)), | |
1003 | locale, FUNC_NAME); | |
b89c4943 | 1004 | |
5b878445 | 1005 | return scm_from_bool (result > 0); |
b89c4943 LC |
1006 | } |
1007 | #undef FUNC_NAME | |
1008 | ||
1009 | SCM_DEFINE (scm_char_locale_ci_lt, "char-locale-ci<?", 2, 1, 0, | |
1010 | (SCM c1, SCM c2, SCM locale), | |
1011 | "Return true if character @var{c1} is lower than @var{c2}, " | |
1012 | "in a case insensitive way according to @var{locale} or to " | |
1013 | "the current locale.") | |
1014 | #define FUNC_NAME s_scm_char_locale_ci_lt | |
1015 | { | |
1016 | int result; | |
b89c4943 LC |
1017 | |
1018 | SCM_VALIDATE_CHAR (1, c1); | |
1019 | SCM_VALIDATE_CHAR (2, c2); | |
1020 | ||
5b878445 MG |
1021 | result = compare_u32_strings_ci (scm_string (scm_list_1 (c1)), |
1022 | scm_string (scm_list_1 (c2)), | |
1023 | locale, FUNC_NAME); | |
b89c4943 LC |
1024 | |
1025 | return scm_from_bool (result < 0); | |
1026 | } | |
1027 | #undef FUNC_NAME | |
1028 | ||
1029 | SCM_DEFINE (scm_char_locale_ci_gt, "char-locale-ci>?", 2, 1, 0, | |
1030 | (SCM c1, SCM c2, SCM locale), | |
1031 | "Return true if character @var{c1} is greater than @var{c2}, " | |
1032 | "in a case insensitive way according to @var{locale} or to " | |
1033 | "the current locale.") | |
1034 | #define FUNC_NAME s_scm_char_locale_ci_gt | |
1035 | { | |
1036 | int result; | |
b89c4943 LC |
1037 | |
1038 | SCM_VALIDATE_CHAR (1, c1); | |
1039 | SCM_VALIDATE_CHAR (2, c2); | |
1040 | ||
5b878445 MG |
1041 | result = compare_u32_strings_ci (scm_string (scm_list_1 (c1)), |
1042 | scm_string (scm_list_1 (c2)), | |
1043 | locale, FUNC_NAME); | |
b89c4943 LC |
1044 | |
1045 | return scm_from_bool (result > 0); | |
1046 | } | |
1047 | #undef FUNC_NAME | |
1048 | ||
1049 | SCM_DEFINE (scm_char_locale_ci_eq, "char-locale-ci=?", 2, 1, 0, | |
1050 | (SCM c1, SCM c2, SCM locale), | |
1051 | "Return true if character @var{c1} is equal to @var{c2}, " | |
1052 | "in a case insensitive way according to @var{locale} or to " | |
1053 | "the current locale.") | |
1054 | #define FUNC_NAME s_scm_char_locale_ci_eq | |
1055 | { | |
1056 | int result; | |
b89c4943 LC |
1057 | |
1058 | SCM_VALIDATE_CHAR (1, c1); | |
1059 | SCM_VALIDATE_CHAR (2, c2); | |
1060 | ||
5b878445 MG |
1061 | result = compare_u32_strings_ci (scm_string (scm_list_1 (c1)), |
1062 | scm_string (scm_list_1 (c2)), | |
1063 | locale, FUNC_NAME); | |
b89c4943 LC |
1064 | |
1065 | return scm_from_bool (result == 0); | |
1066 | } | |
1067 | #undef FUNC_NAME | |
1068 | ||
1069 | ||
1070 | \f | |
1071 | /* Locale-dependent alphabetic character mapping. */ | |
1072 | ||
27f3413e MG |
1073 | static inline int |
1074 | u32_locale_tocase (const scm_t_uint32 *c_s1, size_t len, | |
1075 | scm_t_uint32 **p_c_s2, size_t * p_len2, | |
1076 | scm_t_uint32 *(*func) (const scm_t_uint32 *, size_t, | |
1077 | const char *, uninorm_t, | |
1078 | scm_t_uint32 *, size_t *)) | |
1079 | { | |
1080 | /* Note: Since this is called from `RUN_IN_LOCALE_SECTION', it must not | |
1081 | make any non-local exit. */ | |
1082 | ||
1083 | scm_t_uint32 *ret; | |
1084 | const char *loc = uc_locale_language (); | |
1085 | ||
1086 | /* The first NULL here indicates that no NFC or NFKC normalization | |
1087 | is done. The second NULL means the return buffer is | |
1088 | malloc'ed here. */ | |
1089 | ret = func (c_s1, len, loc, NULL, NULL, p_len2); | |
1090 | ||
1091 | if (ret == NULL) | |
1092 | { | |
2c48e4d5 | 1093 | *p_c_s2 = (scm_t_uint32 *) NULL; |
27f3413e MG |
1094 | *p_len2 = 0; |
1095 | return errno; | |
1096 | } | |
1097 | *p_c_s2 = ret; | |
1098 | ||
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | ||
1103 | ||
b89c4943 LC |
1104 | SCM_DEFINE (scm_char_locale_downcase, "char-locale-downcase", 1, 1, 0, |
1105 | (SCM chr, SCM locale), | |
1106 | "Return the lowercase character that corresponds to @var{chr} " | |
1107 | "according to either @var{locale} or the current locale.") | |
1108 | #define FUNC_NAME s_scm_char_locale_downcase | |
1109 | { | |
27f3413e | 1110 | int ret; |
b89c4943 | 1111 | scm_t_locale c_locale; |
2c48e4d5 MG |
1112 | scm_t_wchar *buf; |
1113 | scm_t_uint32 *downbuf; | |
27f3413e MG |
1114 | size_t downlen; |
1115 | SCM str, downchar; | |
b89c4943 LC |
1116 | |
1117 | SCM_VALIDATE_CHAR (1, chr); | |
b89c4943 LC |
1118 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); |
1119 | ||
27f3413e MG |
1120 | str = scm_i_make_wide_string (1, &buf); |
1121 | buf[0] = SCM_CHAR (chr); | |
1122 | ||
b89c4943 | 1123 | if (c_locale != NULL) |
27f3413e MG |
1124 | RUN_IN_LOCALE_SECTION (c_locale, ret = |
1125 | u32_locale_tocase ((scm_t_uint32 *) buf, 1, | |
2c48e4d5 | 1126 | &downbuf, |
27f3413e MG |
1127 | &downlen, u32_tolower)); |
1128 | else | |
1129 | ret = | |
2c48e4d5 | 1130 | u32_locale_tocase ((scm_t_uint32 *) buf, 1, &downbuf, |
27f3413e MG |
1131 | &downlen, u32_tolower); |
1132 | ||
1133 | if (SCM_UNLIKELY (ret != 0)) | |
9361f762 | 1134 | { |
27f3413e MG |
1135 | errno = ret; |
1136 | scm_syserror (FUNC_NAME); | |
9361f762 | 1137 | } |
27f3413e MG |
1138 | |
1139 | if (downlen == 1) | |
2c48e4d5 | 1140 | downchar = SCM_MAKE_CHAR ((scm_t_wchar) downbuf[0]); |
b89c4943 | 1141 | else |
27f3413e MG |
1142 | downchar = chr; |
1143 | free (downbuf); | |
9361f762 | 1144 | |
27f3413e | 1145 | return downchar; |
9361f762 MV |
1146 | } |
1147 | #undef FUNC_NAME | |
1148 | ||
b89c4943 LC |
1149 | SCM_DEFINE (scm_char_locale_upcase, "char-locale-upcase", 1, 1, 0, |
1150 | (SCM chr, SCM locale), | |
1151 | "Return the uppercase character that corresponds to @var{chr} " | |
1152 | "according to either @var{locale} or the current locale.") | |
1153 | #define FUNC_NAME s_scm_char_locale_upcase | |
9361f762 | 1154 | { |
27f3413e | 1155 | int ret; |
b89c4943 | 1156 | scm_t_locale c_locale; |
2c48e4d5 MG |
1157 | scm_t_wchar *buf; |
1158 | scm_t_uint32 *upbuf; | |
27f3413e MG |
1159 | size_t uplen; |
1160 | SCM str, upchar; | |
b89c4943 LC |
1161 | |
1162 | SCM_VALIDATE_CHAR (1, chr); | |
b89c4943 | 1163 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); |
9361f762 | 1164 | |
27f3413e MG |
1165 | str = scm_i_make_wide_string (1, &buf); |
1166 | buf[0] = SCM_CHAR (chr); | |
1167 | ||
b89c4943 | 1168 | if (c_locale != NULL) |
27f3413e MG |
1169 | RUN_IN_LOCALE_SECTION (c_locale, ret = |
1170 | u32_locale_tocase ((scm_t_uint32 *) buf, 1, | |
2c48e4d5 | 1171 | &upbuf, |
27f3413e MG |
1172 | &uplen, u32_toupper)); |
1173 | else | |
1174 | ret = | |
2c48e4d5 | 1175 | u32_locale_tocase ((scm_t_uint32 *) buf, 1, &upbuf, |
27f3413e MG |
1176 | &uplen, u32_toupper); |
1177 | ||
1178 | if (SCM_UNLIKELY (ret != 0)) | |
b89c4943 | 1179 | { |
27f3413e MG |
1180 | errno = ret; |
1181 | scm_syserror (FUNC_NAME); | |
b89c4943 | 1182 | } |
27f3413e | 1183 | if (uplen == 1) |
2c48e4d5 | 1184 | upchar = SCM_MAKE_CHAR ((scm_t_wchar) upbuf[0]); |
9361f762 | 1185 | else |
27f3413e MG |
1186 | upchar = chr; |
1187 | free (upbuf); | |
1188 | return upchar; | |
b89c4943 LC |
1189 | } |
1190 | #undef FUNC_NAME | |
1191 | ||
1192 | SCM_DEFINE (scm_string_locale_upcase, "string-locale-upcase", 1, 1, 0, | |
1193 | (SCM str, SCM locale), | |
1194 | "Return a new string that is the uppercase version of " | |
1195 | "@var{str} according to either @var{locale} or the current " | |
1196 | "locale.") | |
1197 | #define FUNC_NAME s_scm_string_locale_upcase | |
1198 | { | |
2c48e4d5 MG |
1199 | scm_t_wchar *c_str, *c_buf; |
1200 | scm_t_uint32 *c_upstr; | |
27f3413e MG |
1201 | size_t len, uplen; |
1202 | int ret; | |
b89c4943 | 1203 | scm_t_locale c_locale; |
27f3413e | 1204 | SCM upstr; |
b89c4943 LC |
1205 | |
1206 | SCM_VALIDATE_STRING (1, str); | |
1207 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
27f3413e MG |
1208 | len = scm_i_string_length (str); |
1209 | if (len == 0) | |
1210 | return scm_nullstr; | |
1211 | SCM_STRING_TO_U32_BUF (str, c_str); | |
b89c4943 LC |
1212 | |
1213 | if (c_locale) | |
27f3413e MG |
1214 | RUN_IN_LOCALE_SECTION (c_locale, ret = |
1215 | u32_locale_tocase ((scm_t_uint32 *) c_str, len, | |
2c48e4d5 | 1216 | &c_upstr, |
27f3413e | 1217 | &uplen, u32_toupper)); |
b89c4943 | 1218 | else |
27f3413e MG |
1219 | ret = |
1220 | u32_locale_tocase ((scm_t_uint32 *) c_str, len, | |
2c48e4d5 | 1221 | &c_upstr, &uplen, u32_toupper); |
b89c4943 LC |
1222 | |
1223 | scm_remember_upto_here (str); | |
1224 | ||
27f3413e MG |
1225 | if (SCM_UNLIKELY (ret != 0)) |
1226 | { | |
1227 | errno = ret; | |
1228 | scm_syserror (FUNC_NAME); | |
1229 | } | |
1230 | ||
1231 | upstr = scm_i_make_wide_string (uplen, &c_buf); | |
1232 | memcpy (c_buf, c_upstr, uplen * sizeof (scm_t_wchar)); | |
1233 | free (c_upstr); | |
1234 | ||
1235 | scm_i_try_narrow_string (upstr); | |
1236 | ||
1237 | return upstr; | |
b89c4943 LC |
1238 | } |
1239 | #undef FUNC_NAME | |
9361f762 | 1240 | |
b89c4943 LC |
1241 | SCM_DEFINE (scm_string_locale_downcase, "string-locale-downcase", 1, 1, 0, |
1242 | (SCM str, SCM locale), | |
1243 | "Return a new string that is the down-case version of " | |
1244 | "@var{str} according to either @var{locale} or the current " | |
1245 | "locale.") | |
1246 | #define FUNC_NAME s_scm_string_locale_downcase | |
1247 | { | |
2c48e4d5 MG |
1248 | scm_t_wchar *c_str, *c_buf; |
1249 | scm_t_uint32 *c_downstr; | |
27f3413e MG |
1250 | size_t len, downlen; |
1251 | int ret; | |
b89c4943 | 1252 | scm_t_locale c_locale; |
27f3413e | 1253 | SCM downstr; |
b89c4943 LC |
1254 | |
1255 | SCM_VALIDATE_STRING (1, str); | |
1256 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
27f3413e MG |
1257 | len = scm_i_string_length (str); |
1258 | if (len == 0) | |
1259 | return scm_nullstr; | |
1260 | SCM_STRING_TO_U32_BUF (str, c_str); | |
9361f762 | 1261 | |
b89c4943 | 1262 | if (c_locale) |
27f3413e MG |
1263 | RUN_IN_LOCALE_SECTION (c_locale, ret = |
1264 | u32_locale_tocase ((scm_t_uint32 *) c_str, len, | |
2c48e4d5 | 1265 | &c_downstr, |
27f3413e | 1266 | &downlen, u32_tolower)); |
9361f762 | 1267 | else |
27f3413e MG |
1268 | ret = |
1269 | u32_locale_tocase ((scm_t_uint32 *) c_str, len, | |
2c48e4d5 | 1270 | &c_downstr, &downlen, u32_tolower); |
9361f762 | 1271 | |
b89c4943 LC |
1272 | scm_remember_upto_here (str); |
1273 | ||
27f3413e MG |
1274 | if (SCM_UNLIKELY (ret != 0)) |
1275 | { | |
1276 | errno = ret; | |
1277 | scm_syserror (FUNC_NAME); | |
1278 | } | |
1279 | ||
1280 | downstr = scm_i_make_wide_string (downlen, &c_buf); | |
1281 | memcpy (c_buf, c_downstr, downlen * sizeof (scm_t_wchar)); | |
1282 | free (c_downstr); | |
1283 | ||
1284 | scm_i_try_narrow_string (downstr); | |
1285 | ||
1286 | return downstr; | |
9361f762 MV |
1287 | } |
1288 | #undef FUNC_NAME | |
1289 | ||
b89c4943 LC |
1290 | /* Note: We don't provide mutative versions of `string-locale-(up|down)case' |
1291 | because, in some languages, a single downcase character maps to a couple | |
1292 | of uppercase characters. Read the SRFI-13 document for a detailed | |
1293 | discussion about this. */ | |
1294 | ||
1295 | ||
1296 | \f | |
1297 | /* Locale-dependent number parsing. */ | |
1298 | ||
1299 | SCM_DEFINE (scm_locale_string_to_integer, "locale-string->integer", | |
1300 | 1, 2, 0, (SCM str, SCM base, SCM locale), | |
1301 | "Convert string @var{str} into an integer according to either " | |
1302 | "@var{locale} (a locale object as returned by @code{make-locale}) " | |
1303 | "or the current process locale. Return two values: an integer " | |
1304 | "(on success) or @code{#f}, and the number of characters read " | |
1305 | "from @var{str} (@code{0} on failure).") | |
1306 | #define FUNC_NAME s_scm_locale_string_to_integer | |
9361f762 | 1307 | { |
9361f762 | 1308 | SCM result; |
b89c4943 LC |
1309 | long c_result; |
1310 | int c_base; | |
1311 | const char *c_str; | |
1312 | char *c_endptr; | |
1313 | scm_t_locale c_locale; | |
9361f762 | 1314 | |
b89c4943 LC |
1315 | SCM_VALIDATE_STRING (1, str); |
1316 | c_str = scm_i_string_chars (str); | |
9361f762 | 1317 | |
b89c4943 LC |
1318 | if (base != SCM_UNDEFINED) |
1319 | SCM_VALIDATE_INT_COPY (2, base, c_base); | |
9361f762 | 1320 | else |
b89c4943 LC |
1321 | c_base = 10; |
1322 | ||
1323 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (3, locale, c_locale); | |
1324 | ||
1325 | if (c_locale != NULL) | |
9361f762 | 1326 | { |
b89c4943 LC |
1327 | #ifdef USE_GNU_LOCALE_API |
1328 | c_result = strtol_l (c_str, &c_endptr, c_base, c_locale); | |
1329 | #else | |
1330 | RUN_IN_LOCALE_SECTION (c_locale, | |
1331 | c_result = strtol (c_str, &c_endptr, c_base)); | |
1332 | #endif | |
9361f762 | 1333 | } |
b89c4943 LC |
1334 | else |
1335 | c_result = strtol (c_str, &c_endptr, c_base); | |
1336 | ||
1337 | scm_remember_upto_here (str); | |
1338 | ||
1339 | if (c_endptr == c_str) | |
1340 | result = SCM_BOOL_F; | |
1341 | else | |
1342 | result = scm_from_long (c_result); | |
1343 | ||
1344 | return (scm_values (scm_list_2 (result, scm_from_long (c_endptr - c_str)))); | |
1345 | } | |
1346 | #undef FUNC_NAME | |
1347 | ||
1348 | SCM_DEFINE (scm_locale_string_to_inexact, "locale-string->inexact", | |
1349 | 1, 1, 0, (SCM str, SCM locale), | |
1350 | "Convert string @var{str} into an inexact number according to " | |
1351 | "either @var{locale} (a locale object as returned by " | |
1352 | "@code{make-locale}) or the current process locale. Return " | |
1353 | "two values: an inexact number (on success) or @code{#f}, and " | |
1354 | "the number of characters read from @var{str} (@code{0} on " | |
1355 | "failure).") | |
1356 | #define FUNC_NAME s_scm_locale_string_to_inexact | |
1357 | { | |
1358 | SCM result; | |
1359 | double c_result; | |
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 | |
b89c4943 | 1367 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); |
9361f762 | 1368 | |
b89c4943 LC |
1369 | if (c_locale != NULL) |
1370 | { | |
1371 | #ifdef USE_GNU_LOCALE_API | |
1372 | c_result = strtod_l (c_str, &c_endptr, c_locale); | |
1373 | #else | |
1374 | RUN_IN_LOCALE_SECTION (c_locale, | |
1375 | c_result = strtod (c_str, &c_endptr)); | |
1376 | #endif | |
1377 | } | |
9361f762 | 1378 | else |
b89c4943 LC |
1379 | c_result = strtod (c_str, &c_endptr); |
1380 | ||
1381 | scm_remember_upto_here (str); | |
1382 | ||
1383 | if (c_endptr == c_str) | |
9361f762 | 1384 | result = SCM_BOOL_F; |
b89c4943 LC |
1385 | else |
1386 | result = scm_from_double (c_result); | |
9361f762 | 1387 | |
b89c4943 | 1388 | return (scm_values (scm_list_2 (result, scm_from_long (c_endptr - c_str)))); |
9361f762 MV |
1389 | } |
1390 | #undef FUNC_NAME | |
1391 | ||
b89c4943 | 1392 | \f |
a2f00b9b LC |
1393 | /* Language information, aka. `nl_langinfo ()'. */ |
1394 | ||
1395 | /* FIXME: Issues related to `nl-langinfo'. | |
1396 | ||
1397 | 1. The `CODESET' value is not normalized. This is a secondary issue, but | |
1398 | still a practical issue. See | |
1399 | http://www.cl.cam.ac.uk/~mgk25/ucs/norm_charmap.c for codeset | |
1400 | normalization. | |
1401 | ||
1402 | 2. `nl_langinfo ()' is not available on Windows. | |
1403 | ||
1404 | 3. `nl_langinfo ()' may return strings encoded in a locale different from | |
1405 | the current one, thereby defeating `scm_from_locale_string ()'. | |
1406 | Example: support the current locale is "Latin-1" and one asks: | |
1407 | ||
1408 | (nl-langinfo DAY_1 (make-locale LC_ALL "eo_EO.UTF-8")) | |
1409 | ||
1410 | The result will be a UTF-8 string. However, `scm_from_locale_string', | |
1411 | which expects a Latin-1 string, won't be able to make much sense of the | |
1412 | returned string. Thus, we'd need an `scm_from_string ()' variant where | |
1413 | the locale (or charset) is explicitly passed. */ | |
1414 | ||
1415 | ||
1416 | SCM_DEFINE (scm_nl_langinfo, "nl-langinfo", 1, 1, 0, | |
1417 | (SCM item, SCM locale), | |
1418 | "Return a string denoting locale information for @var{item} " | |
1419 | "in the current locale or that specified by @var{locale}. " | |
1420 | "The semantics and arguments are the same as those of the " | |
1421 | "X/Open @code{nl_langinfo} function (@pxref{The Elegant and " | |
1422 | "Fast Way, @code{nl_langinfo},, libc, The GNU C Library " | |
1423 | "Reference Manual}).") | |
1424 | #define FUNC_NAME s_scm_nl_langinfo | |
1425 | { | |
1426 | #ifdef HAVE_NL_LANGINFO | |
1427 | SCM result; | |
1428 | nl_item c_item; | |
1429 | char *c_result; | |
1430 | scm_t_locale c_locale; | |
1431 | ||
1432 | SCM_VALIDATE_INT_COPY (2, item, c_item); | |
1433 | SCM_VALIDATE_OPTIONAL_LOCALE_COPY (2, locale, c_locale); | |
1434 | ||
1435 | /* Sadly, `nl_langinfo ()' returns a pointer to a static string. According | |
1436 | to SuS v2, that static string may be modified by subsequent calls to | |
1437 | `nl_langinfo ()' as well as by calls to `setlocale ()'. Thus, we must | |
1438 | acquire the locale mutex before doing invoking `nl_langinfo ()'. See | |
1439 | http://opengroup.org/onlinepubs/007908799/xsh/nl_langinfo.html for | |
1440 | details. */ | |
1441 | ||
1442 | scm_i_pthread_mutex_lock (&scm_i_locale_mutex); | |
1443 | if (c_locale != NULL) | |
1444 | { | |
1445 | #ifdef USE_GNU_LOCALE_API | |
1446 | c_result = nl_langinfo_l (c_item, c_locale); | |
1447 | #else | |
1448 | /* We can't use `RUN_IN_LOCALE_SECTION ()' here because the locale | |
1449 | mutex is already taken. */ | |
1450 | int lsec_err; | |
1451 | scm_t_locale_settings lsec_prev_locale; | |
1452 | ||
1453 | lsec_err = get_current_locale_settings (&lsec_prev_locale); | |
1454 | if (lsec_err) | |
1455 | scm_i_pthread_mutex_unlock (&scm_i_locale_mutex); | |
1456 | else | |
1457 | { | |
1458 | lsec_err = install_locale (c_locale); | |
1459 | if (lsec_err) | |
1460 | { | |
1461 | leave_locale_section (&lsec_prev_locale); | |
1462 | free_locale_settings (&lsec_prev_locale); | |
1463 | } | |
1464 | } | |
1465 | ||
1466 | if (lsec_err) | |
1467 | scm_locale_error (FUNC_NAME, lsec_err); | |
1468 | else | |
1469 | { | |
1470 | c_result = nl_langinfo (c_item); | |
1471 | ||
1445e449 | 1472 | restore_locale_settings (&lsec_prev_locale); |
a2f00b9b LC |
1473 | free_locale_settings (&lsec_prev_locale); |
1474 | } | |
1475 | #endif | |
1476 | } | |
1477 | else | |
1478 | c_result = nl_langinfo (c_item); | |
1479 | ||
1480 | c_result = strdup (c_result); | |
1481 | scm_i_pthread_mutex_unlock (&scm_i_locale_mutex); | |
1482 | ||
1483 | if (c_result == NULL) | |
1484 | result = SCM_BOOL_F; | |
1485 | else | |
1486 | { | |
a2f00b9b LC |
1487 | switch (c_item) |
1488 | { | |
afb49959 | 1489 | #if (defined GROUPING) && (defined MON_GROUPING) |
a2f00b9b LC |
1490 | case GROUPING: |
1491 | case MON_GROUPING: | |
a2f00b9b | 1492 | { |
afb49959 | 1493 | char *p; |
a2f00b9b | 1494 | |
afb49959 LC |
1495 | /* In this cases, the result is to be interpreted as a list of |
1496 | numbers. If the last item is `CHARS_MAX', it has the special | |
1497 | meaning "no more grouping". */ | |
1498 | result = SCM_EOL; | |
1499 | for (p = c_result; (*p != '\0') && (*p != CHAR_MAX); p++) | |
1500 | result = scm_cons (SCM_I_MAKINUM ((int) *p), result); | |
a2f00b9b | 1501 | |
afb49959 LC |
1502 | { |
1503 | SCM last_pair = result; | |
a2f00b9b | 1504 | |
afb49959 LC |
1505 | result = scm_reverse_x (result, SCM_EOL); |
1506 | ||
1507 | if (*p != CHAR_MAX) | |
1508 | { | |
1509 | /* Cyclic grouping information. */ | |
1510 | if (last_pair != SCM_EOL) | |
1511 | SCM_SETCDR (last_pair, result); | |
1512 | } | |
1513 | } | |
a2f00b9b | 1514 | |
afb49959 LC |
1515 | free (c_result); |
1516 | break; | |
1517 | } | |
1518 | #endif | |
1519 | ||
1520 | #if (defined FRAC_DIGITS) && (defined INT_FRAC_DIGITS) | |
a2f00b9b LC |
1521 | case FRAC_DIGITS: |
1522 | case INT_FRAC_DIGITS: | |
1523 | /* This is to be interpreted as a single integer. */ | |
1524 | if (*c_result == CHAR_MAX) | |
1525 | /* Unspecified. */ | |
1526 | result = SCM_BOOL_F; | |
1527 | else | |
1528 | result = SCM_I_MAKINUM (*c_result); | |
1529 | ||
1530 | free (c_result); | |
1531 | break; | |
afb49959 | 1532 | #endif |
a2f00b9b | 1533 | |
afb49959 | 1534 | #if (defined P_CS_PRECEDES) && (defined INT_N_CS_PRECEDES) |
a2f00b9b LC |
1535 | case P_CS_PRECEDES: |
1536 | case N_CS_PRECEDES: | |
1537 | case INT_P_CS_PRECEDES: | |
1538 | case INT_N_CS_PRECEDES: | |
afb49959 | 1539 | #if (defined P_SEP_BY_SPACE) && (defined N_SEP_BY_SPACE) |
a2f00b9b LC |
1540 | case P_SEP_BY_SPACE: |
1541 | case N_SEP_BY_SPACE: | |
afb49959 | 1542 | #endif |
a2f00b9b LC |
1543 | /* This is to be interpreted as a boolean. */ |
1544 | result = scm_from_bool (*c_result); | |
1545 | ||
1546 | free (c_result); | |
1547 | break; | |
afb49959 | 1548 | #endif |
a2f00b9b | 1549 | |
afb49959 | 1550 | #if (defined P_SIGN_POSN) && (defined INT_N_SIGN_POSN) |
a2f00b9b LC |
1551 | case P_SIGN_POSN: |
1552 | case N_SIGN_POSN: | |
1553 | case INT_P_SIGN_POSN: | |
1554 | case INT_N_SIGN_POSN: | |
1555 | /* See `(libc) Sign of Money Amount' for the interpretation of the | |
1556 | return value here. */ | |
1557 | switch (*c_result) | |
1558 | { | |
1559 | case 0: | |
1560 | result = scm_from_locale_symbol ("parenthesize"); | |
1561 | break; | |
1562 | ||
1563 | case 1: | |
1564 | result = scm_from_locale_symbol ("sign-before"); | |
1565 | break; | |
1566 | ||
1567 | case 2: | |
1568 | result = scm_from_locale_symbol ("sign-after"); | |
1569 | break; | |
1570 | ||
1571 | case 3: | |
1572 | result = scm_from_locale_symbol ("sign-before-currency-symbol"); | |
1573 | break; | |
1574 | ||
1575 | case 4: | |
1576 | result = scm_from_locale_symbol ("sign-after-currency-symbol"); | |
1577 | break; | |
1578 | ||
1579 | default: | |
1580 | result = scm_from_locale_symbol ("unspecified"); | |
1581 | } | |
1582 | break; | |
afb49959 | 1583 | #endif |
a2f00b9b LC |
1584 | |
1585 | default: | |
1586 | /* FIXME: `locale_string ()' is not appropriate here because of | |
1587 | encoding issues (see comment above). */ | |
1588 | result = scm_take_locale_string (c_result); | |
1589 | } | |
1590 | } | |
1591 | ||
1592 | return result; | |
1593 | #else | |
1594 | scm_syserror_msg (FUNC_NAME, "`nl-langinfo' not supported on your system", | |
1595 | SCM_EOL, ENOSYS); | |
1596 | ||
1597 | return SCM_BOOL_F; | |
1598 | #endif | |
1599 | } | |
1600 | #undef FUNC_NAME | |
1601 | ||
1602 | /* Define the `nl_item' constants. */ | |
1603 | static inline void | |
1604 | define_langinfo_items (void) | |
9361f762 | 1605 | { |
a2f00b9b LC |
1606 | #if (defined HAVE_NL_TYPES_H) && (defined HAVE_LANGINFO_H) |
1607 | ||
1608 | #define DEFINE_NLITEM_CONSTANT(_item) \ | |
1609 | scm_c_define (# _item, scm_from_int (_item)) | |
1610 | ||
1611 | DEFINE_NLITEM_CONSTANT (CODESET); | |
1612 | ||
1613 | /* Abbreviated days of the week. */ | |
1614 | DEFINE_NLITEM_CONSTANT (ABDAY_1); | |
1615 | DEFINE_NLITEM_CONSTANT (ABDAY_2); | |
1616 | DEFINE_NLITEM_CONSTANT (ABDAY_3); | |
1617 | DEFINE_NLITEM_CONSTANT (ABDAY_4); | |
1618 | DEFINE_NLITEM_CONSTANT (ABDAY_5); | |
1619 | DEFINE_NLITEM_CONSTANT (ABDAY_6); | |
1620 | DEFINE_NLITEM_CONSTANT (ABDAY_7); | |
1621 | ||
1622 | /* Long-named days of the week. */ | |
1623 | DEFINE_NLITEM_CONSTANT (DAY_1); /* Sunday */ | |
1624 | DEFINE_NLITEM_CONSTANT (DAY_2); /* Monday */ | |
1625 | DEFINE_NLITEM_CONSTANT (DAY_3); /* Tuesday */ | |
1626 | DEFINE_NLITEM_CONSTANT (DAY_4); /* Wednesday */ | |
1627 | DEFINE_NLITEM_CONSTANT (DAY_5); /* Thursday */ | |
1628 | DEFINE_NLITEM_CONSTANT (DAY_6); /* Friday */ | |
1629 | DEFINE_NLITEM_CONSTANT (DAY_7); /* Saturday */ | |
1630 | ||
1631 | /* Abbreviated month names. */ | |
1632 | DEFINE_NLITEM_CONSTANT (ABMON_1); /* Jan */ | |
1633 | DEFINE_NLITEM_CONSTANT (ABMON_2); | |
1634 | DEFINE_NLITEM_CONSTANT (ABMON_3); | |
1635 | DEFINE_NLITEM_CONSTANT (ABMON_4); | |
1636 | DEFINE_NLITEM_CONSTANT (ABMON_5); | |
1637 | DEFINE_NLITEM_CONSTANT (ABMON_6); | |
1638 | DEFINE_NLITEM_CONSTANT (ABMON_7); | |
1639 | DEFINE_NLITEM_CONSTANT (ABMON_8); | |
1640 | DEFINE_NLITEM_CONSTANT (ABMON_9); | |
1641 | DEFINE_NLITEM_CONSTANT (ABMON_10); | |
1642 | DEFINE_NLITEM_CONSTANT (ABMON_11); | |
1643 | DEFINE_NLITEM_CONSTANT (ABMON_12); | |
1644 | ||
1645 | /* Long month names. */ | |
1646 | DEFINE_NLITEM_CONSTANT (MON_1); /* January */ | |
1647 | DEFINE_NLITEM_CONSTANT (MON_2); | |
1648 | DEFINE_NLITEM_CONSTANT (MON_3); | |
1649 | DEFINE_NLITEM_CONSTANT (MON_4); | |
1650 | DEFINE_NLITEM_CONSTANT (MON_5); | |
1651 | DEFINE_NLITEM_CONSTANT (MON_6); | |
1652 | DEFINE_NLITEM_CONSTANT (MON_7); | |
1653 | DEFINE_NLITEM_CONSTANT (MON_8); | |
1654 | DEFINE_NLITEM_CONSTANT (MON_9); | |
1655 | DEFINE_NLITEM_CONSTANT (MON_10); | |
1656 | DEFINE_NLITEM_CONSTANT (MON_11); | |
1657 | DEFINE_NLITEM_CONSTANT (MON_12); | |
1658 | ||
1659 | DEFINE_NLITEM_CONSTANT (AM_STR); /* Ante meridiem string. */ | |
1660 | DEFINE_NLITEM_CONSTANT (PM_STR); /* Post meridiem string. */ | |
1661 | ||
1662 | DEFINE_NLITEM_CONSTANT (D_T_FMT); /* Date and time format for strftime. */ | |
1663 | DEFINE_NLITEM_CONSTANT (D_FMT); /* Date format for strftime. */ | |
1664 | DEFINE_NLITEM_CONSTANT (T_FMT); /* Time format for strftime. */ | |
1665 | DEFINE_NLITEM_CONSTANT (T_FMT_AMPM);/* 12-hour time format for strftime. */ | |
1666 | ||
1667 | DEFINE_NLITEM_CONSTANT (ERA); /* Alternate era. */ | |
1668 | DEFINE_NLITEM_CONSTANT (ERA_D_FMT); /* Date in alternate era format. */ | |
1669 | DEFINE_NLITEM_CONSTANT (ERA_D_T_FMT); /* Date and time in alternate era | |
1670 | format. */ | |
1671 | DEFINE_NLITEM_CONSTANT (ERA_T_FMT); /* Time in alternate era format. */ | |
1672 | ||
1673 | DEFINE_NLITEM_CONSTANT (ALT_DIGITS); /* Alternate symbols for digits. */ | |
1674 | DEFINE_NLITEM_CONSTANT (RADIXCHAR); | |
1675 | DEFINE_NLITEM_CONSTANT (THOUSEP); | |
1676 | ||
1677 | #ifdef YESEXPR | |
1678 | DEFINE_NLITEM_CONSTANT (YESEXPR); | |
1679 | #endif | |
1680 | #ifdef NOEXPR | |
1681 | DEFINE_NLITEM_CONSTANT (NOEXPR); | |
1682 | #endif | |
b89c4943 | 1683 | |
a2f00b9b LC |
1684 | #ifdef CRNCYSTR /* currency symbol */ |
1685 | DEFINE_NLITEM_CONSTANT (CRNCYSTR); | |
1686 | #endif | |
b89c4943 | 1687 | |
a2f00b9b | 1688 | /* GNU extensions. */ |
b89c4943 | 1689 | |
a2f00b9b LC |
1690 | #ifdef ERA_YEAR |
1691 | DEFINE_NLITEM_CONSTANT (ERA_YEAR); /* Year in alternate era format. */ | |
1692 | #endif | |
b89c4943 | 1693 | |
a2f00b9b LC |
1694 | /* LC_MONETARY category: formatting of monetary quantities. |
1695 | These items each correspond to a member of `struct lconv', | |
1696 | defined in <locale.h>. */ | |
1697 | #ifdef INT_CURR_SYMBOL | |
1698 | DEFINE_NLITEM_CONSTANT (INT_CURR_SYMBOL); | |
1699 | #endif | |
1700 | #ifdef MON_DECIMAL_POINT | |
1701 | DEFINE_NLITEM_CONSTANT (MON_DECIMAL_POINT); | |
1702 | #endif | |
1703 | #ifdef MON_THOUSANDS_SEP | |
1704 | DEFINE_NLITEM_CONSTANT (MON_THOUSANDS_SEP); | |
1705 | #endif | |
1706 | #ifdef MON_GROUPING | |
1707 | DEFINE_NLITEM_CONSTANT (MON_GROUPING); | |
1708 | #endif | |
1709 | #ifdef POSITIVE_SIGN | |
1710 | DEFINE_NLITEM_CONSTANT (POSITIVE_SIGN); | |
1711 | #endif | |
1712 | #ifdef NEGATIVE_SIGN | |
1713 | DEFINE_NLITEM_CONSTANT (NEGATIVE_SIGN); | |
1714 | #endif | |
1715 | #ifdef GROUPING | |
1716 | DEFINE_NLITEM_CONSTANT (GROUPING); | |
1717 | #endif | |
1718 | #ifdef INT_FRAC_DIGITS | |
1719 | DEFINE_NLITEM_CONSTANT (INT_FRAC_DIGITS); | |
1720 | #endif | |
1721 | #ifdef FRAC_DIGITS | |
1722 | DEFINE_NLITEM_CONSTANT (FRAC_DIGITS); | |
1723 | #endif | |
1724 | #ifdef P_CS_PRECEDES | |
1725 | DEFINE_NLITEM_CONSTANT (P_CS_PRECEDES); | |
1726 | #endif | |
1727 | #ifdef P_SEP_BY_SPACE | |
1728 | DEFINE_NLITEM_CONSTANT (P_SEP_BY_SPACE); | |
1729 | #endif | |
1730 | #ifdef N_CS_PRECEDES | |
1731 | DEFINE_NLITEM_CONSTANT (N_CS_PRECEDES); | |
1732 | #endif | |
1733 | #ifdef N_SEP_BY_SPACE | |
1734 | DEFINE_NLITEM_CONSTANT (N_SEP_BY_SPACE); | |
1735 | #endif | |
1736 | #ifdef P_SIGN_POSN | |
1737 | DEFINE_NLITEM_CONSTANT (P_SIGN_POSN); | |
1738 | #endif | |
1739 | #ifdef N_SIGN_POSN | |
1740 | DEFINE_NLITEM_CONSTANT (N_SIGN_POSN); | |
1741 | #endif | |
1742 | #ifdef INT_P_CS_PRECEDES | |
1743 | DEFINE_NLITEM_CONSTANT (INT_P_CS_PRECEDES); | |
1744 | #endif | |
1745 | #ifdef INT_P_SEP_BY_SPACE | |
1746 | DEFINE_NLITEM_CONSTANT (INT_P_SEP_BY_SPACE); | |
1747 | #endif | |
1748 | #ifdef INT_N_CS_PRECEDES | |
1749 | DEFINE_NLITEM_CONSTANT (INT_N_CS_PRECEDES); | |
1750 | #endif | |
1751 | #ifdef INT_N_SEP_BY_SPACE | |
1752 | DEFINE_NLITEM_CONSTANT (INT_N_SEP_BY_SPACE); | |
1753 | #endif | |
1754 | #ifdef INT_P_SIGN_POSN | |
1755 | DEFINE_NLITEM_CONSTANT (INT_P_SIGN_POSN); | |
1756 | #endif | |
1757 | #ifdef INT_N_SIGN_POSN | |
1758 | DEFINE_NLITEM_CONSTANT (INT_N_SIGN_POSN); | |
1759 | #endif | |
1760 | ||
1761 | #undef DEFINE_NLITEM_CONSTANT | |
1762 | ||
1763 | #endif /* HAVE_NL_TYPES_H */ | |
1764 | } | |
1765 | ||
1766 | \f | |
1767 | void | |
1768 | scm_init_i18n () | |
1769 | { | |
1770 | SCM global_locale_smob; | |
1771 | ||
1772 | #ifdef HAVE_NL_LANGINFO | |
1773 | scm_add_feature ("nl-langinfo"); | |
1774 | define_langinfo_items (); | |
1775 | #endif | |
b89c4943 | 1776 | |
9361f762 | 1777 | #include "libguile/i18n.x" |
b89c4943 | 1778 | |
a2f00b9b LC |
1779 | /* Initialize the global locale object with a special `locale' SMOB. */ |
1780 | SCM_NEWSMOB (global_locale_smob, scm_tc16_locale_smob_type, NULL); | |
1781 | SCM_VARIABLE_SET (scm_global_locale, global_locale_smob); | |
9361f762 MV |
1782 | } |
1783 | ||
756e8a3a LC |
1784 | void |
1785 | scm_bootstrap_i18n () | |
1786 | { | |
1787 | scm_c_register_extension ("libguile", "scm_init_i18n", | |
1788 | (scm_t_extension_init_func) scm_init_i18n, | |
1789 | NULL); | |
1790 | ||
1791 | } | |
1792 | ||
9361f762 MV |
1793 | |
1794 | /* | |
1795 | Local Variables: | |
1796 | c-file-style: "gnu" | |
1797 | End: | |
1798 | */ |