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