dlls/msvcrt/locale.c

   1 /*
   2  * msvcrt.dll locale functions
   3  *
   4  * Copyright 2000 Jon Griffiths
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <locale.h>
  25 #include <stdarg.h>
  26 #include <stdio.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winuser.h"
  31
  32 #include "msvcrt.h"
  33 #include "msvcrt/locale.h"
  34 #include "mtdll.h"
  35
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  39
  40 /* FIXME: Need to hold locale for each LC_* type and aggregate
  41  * string to produce lc_all.
  42  */
  43 #define MAX_ELEM_LEN 64 /* Max length of country/language/CP string */
  44 #define MAX_LOCALE_LENGTH 256
  45 char MSVCRT_current_lc_all[MAX_LOCALE_LENGTH];
  46 LCID MSVCRT_current_lc_all_lcid;
  47 int MSVCRT_current_lc_all_cp;
  48
  49 /* MT */
  50 #define LOCK_LOCALE   _mlock(_SETLOCALE_LOCK);
  51 #define UNLOCK_LOCALE _munlock(_SETLOCALE_LOCK);
  52
  53 /* ctype data modified when the locale changes */
  54 extern WORD MSVCRT__ctype [257];
  55 extern WORD MSVCRT_current_ctype[257];
  56 extern WORD* MSVCRT__pctype;
  57
  58 /* mbctype data modified when the locale changes */
  59 extern int MSVCRT___mb_cur_max;
  60 extern unsigned char MSVCRT_mbctype[257];
  61
  62 #define MSVCRT_LEADBYTE  0x8000
  63
  64 /* Friendly country strings & iso codes for synonym support.
  65  * Based on MS documentation for setlocale().
  66  */
  67 static const char* _country_synonyms[] =
  68 {
  69   "Hong Kong","HK",
  70   "Hong-Kong","HK",
  71   "New Zealand","NZ",
  72   "New-Zealand","NZ",
  73   "PR China","CN",
  74   "PR-China","CN",
  75   "United Kingdom","GB",
  76   "United-Kingdom","GB",
  77   "Britain","GB",
  78   "England","GB",
  79   "Great Britain","GB",
  80   "United States","US",
  81   "United-States","US",
  82   "America","US"
  83 };
  84
  85 /* INTERNAL: Map a synonym to an ISO code */
  86 static void remap_synonym(char *name)
  87 {
  88   size_t i;
  89   for (i = 0; i < sizeof(_country_synonyms)/sizeof(char*); i += 2 )
  90   {
  91     if (!strcasecmp(_country_synonyms[i],name))
  92     {
  93       TRACE(":Mapping synonym %s to %s\n",name,_country_synonyms[i+1]);
  94       name[0] = _country_synonyms[i+1][0];
  95       name[1] = _country_synonyms[i+1][1];
  96       name[2] = '\0';
  97       return;
  98     }
  99   }
 100 }
 101
 102 /* Note: Flags are weighted in order of matching importance */
 103 #define FOUND_LANGUAGE         0x4
 104 #define FOUND_COUNTRY          0x2
 105 #define FOUND_CODEPAGE         0x1
 106
 107 typedef struct {
 108   char search_language[MAX_ELEM_LEN];
 109   char search_country[MAX_ELEM_LEN];
 110   char search_codepage[MAX_ELEM_LEN];
 111   char found_language[MAX_ELEM_LEN];
 112   char found_country[MAX_ELEM_LEN];
 113   char found_codepage[MAX_ELEM_LEN];
 114   unsigned int match_flags;
 115   LANGID found_lang_id;
 116 } locale_search_t;
 117
 118 #define CONTINUE_LOOKING TRUE
 119 #define STOP_LOOKING     FALSE
 120
 121 /* INTERNAL: Get and compare locale info with a given string */
 122 static int compare_info(LCID lcid, DWORD flags, char* buff, const char* cmp)
 123 {
 124   buff[0] = 0;
 125   GetLocaleInfoA(lcid, flags|LOCALE_NOUSEROVERRIDE,buff, MAX_ELEM_LEN);
 126   if (!buff[0] || !cmp[0])
 127     return 0;
 128   /* Partial matches are allowed, e.g. "Germ" matches "Germany" */
 129   return !strncasecmp(cmp, buff, strlen(cmp));
 130 }
 131
 132 static BOOL CALLBACK
 133 find_best_locale_proc(HMODULE hModule WINE_UNUSED, LPCSTR type WINE_UNUSED,
 134                       LPCSTR name WINE_UNUSED, WORD LangID, LONG lParam)
 135 {
 136   locale_search_t *res = (locale_search_t *)lParam;
 137   const LCID lcid = MAKELCID(LangID, SORT_DEFAULT);
 138   char buff[MAX_ELEM_LEN];
 139   unsigned int flags = 0;
 140
 141   if(PRIMARYLANGID(LangID) == LANG_NEUTRAL)
 142     return CONTINUE_LOOKING;
 143
 144   /* Check Language */
 145   if (compare_info(lcid,LOCALE_SISO639LANGNAME,buff,res->search_language) ||
 146       compare_info(lcid,LOCALE_SABBREVLANGNAME,buff,res->search_language) ||
 147       compare_info(lcid,LOCALE_SENGLANGUAGE,buff,res->search_language))
 148   {
 149     TRACE(":Found language: %s->%s\n", res->search_language, buff);
 150     flags |= FOUND_LANGUAGE;
 151     memcpy(res->found_language,res->search_language,MAX_ELEM_LEN);
 152   }
 153   else if (res->match_flags & FOUND_LANGUAGE)
 154   {
 155     return CONTINUE_LOOKING;
 156   }
 157
 158   /* Check Country */
 159   if (compare_info(lcid,LOCALE_SISO3166CTRYNAME,buff,res->search_country) ||
 160       compare_info(lcid,LOCALE_SABBREVCTRYNAME,buff,res->search_country) ||
 161       compare_info(lcid,LOCALE_SENGCOUNTRY,buff,res->search_country))
 162   {
 163     TRACE("Found country:%s->%s\n", res->search_country, buff);
 164     flags |= FOUND_COUNTRY;
 165     memcpy(res->found_country,res->search_country,MAX_ELEM_LEN);
 166   }
 167   else if (res->match_flags & FOUND_COUNTRY)
 168   {
 169     return CONTINUE_LOOKING;
 170   }
 171
 172   /* Check codepage */
 173   if (compare_info(lcid,LOCALE_IDEFAULTCODEPAGE,buff,res->search_codepage) ||
 174       (compare_info(lcid,LOCALE_IDEFAULTANSICODEPAGE,buff,res->search_codepage)))
 175   {
 176     TRACE("Found codepage:%s->%s\n", res->search_codepage, buff);
 177     flags |= FOUND_CODEPAGE;
 178     memcpy(res->found_codepage,res->search_codepage,MAX_ELEM_LEN);
 179   }
 180   else if (res->match_flags & FOUND_CODEPAGE)
 181   {
 182     return CONTINUE_LOOKING;
 183   }
 184
 185   if (flags > res->match_flags)
 186   {
 187     /* Found a better match than previously */
 188     res->match_flags = flags;
 189     res->found_lang_id = LangID;
 190   }
 191   if (flags & (FOUND_LANGUAGE & FOUND_COUNTRY & FOUND_CODEPAGE))
 192   {
 193     TRACE(":found exact locale match\n");
 194     return STOP_LOOKING;
 195   }
 196   return CONTINUE_LOOKING;
 197 }
 198
 199 extern int atoi(const char *);
 200
 201 /* Internal: Find the LCID for a locale specification */
 202 static LCID MSVCRT_locale_to_LCID(locale_search_t* locale)
 203 {
 204   LCID lcid;
 205   EnumResourceLanguagesA(GetModuleHandleA("KERNEL32"), (LPSTR)RT_STRING,
 206                          (LPCSTR)LOCALE_ILANGUAGE,find_best_locale_proc,
 207                          (LONG)locale);
 208
 209   if (!locale->match_flags)
 210     return 0;
 211
 212   /* If we were given something that didn't match, fail */
 213   if (locale->search_country[0] && !(locale->match_flags & FOUND_COUNTRY))
 214     return 0;
 215
 216   lcid =  MAKELCID(locale->found_lang_id, SORT_DEFAULT);
 217
 218   /* Populate partial locale, translating LCID to locale string elements */
 219   if (!locale->found_codepage[0])
 220   {
 221     /* Even if a codepage is not enumerated for a locale
 222      * it can be set if valid */
 223     if (locale->search_codepage[0])
 224     {
 225       if (IsValidCodePage(atoi(locale->search_codepage)))
 226         memcpy(locale->found_codepage,locale->search_codepage,MAX_ELEM_LEN);
 227       else
 228       {
 229         /* Special codepage values: OEM & ANSI */
 230         if (strcasecmp(locale->search_codepage,"OCP"))
 231         {
 232           GetLocaleInfoA(lcid, LOCALE_IDEFAULTCODEPAGE,
 233                          locale->found_codepage, MAX_ELEM_LEN);
 234         }
 235         if (strcasecmp(locale->search_codepage,"ACP"))
 236         {
 237           GetLocaleInfoA(lcid, LOCALE_IDEFAULTANSICODEPAGE,
 238                          locale->found_codepage, MAX_ELEM_LEN);
 239         }
 240         else
 241           return 0;
 242
 243         if (!atoi(locale->found_codepage))
 244            return 0;
 245       }
 246     }
 247     else
 248     {
 249       /* Prefer ANSI codepages if present */
 250       GetLocaleInfoA(lcid, LOCALE_IDEFAULTANSICODEPAGE,
 251                      locale->found_codepage, MAX_ELEM_LEN);
 252       if (!locale->found_codepage[0] || !atoi(locale->found_codepage))
 253           GetLocaleInfoA(lcid, LOCALE_IDEFAULTCODEPAGE,
 254                          locale->found_codepage, MAX_ELEM_LEN);
 255     }
 256   }
 257   GetLocaleInfoA(lcid, LOCALE_SENGLANGUAGE|LOCALE_NOUSEROVERRIDE,
 258                  locale->found_language, MAX_ELEM_LEN);
 259   GetLocaleInfoA(lcid, LOCALE_SENGCOUNTRY|LOCALE_NOUSEROVERRIDE,
 260                  locale->found_country, MAX_ELEM_LEN);
 261   return lcid;
 262 }
 263
 264 /* INTERNAL: Set ctype behaviour for a codepage */
 265 static void msvcrt_set_ctype(unsigned int codepage, LCID lcid)
 266 {
 267   CPINFO cp;
 268
 269   memset(&cp, 0, sizeof(CPINFO));
 270
 271   if (GetCPInfo(codepage, &cp))
 272   {
 273     int i;
 274     char str[3];
 275     unsigned char *traverse = (unsigned char *)cp.LeadByte;
 276
 277     memset(MSVCRT_current_ctype, 0, sizeof(MSVCRT__ctype));
 278     MSVCRT_current_lc_all_cp = codepage;
 279
 280     /* Switch ctype macros to MBCS if needed */
 281     MSVCRT___mb_cur_max = cp.MaxCharSize;
 282
 283     /* Set remaining ctype flags: FIXME: faster way to do this? */
 284     str[1] = str[2] = 0;
 285     for (i = 0; i < 256; i++)
 286     {
 287       if (!(MSVCRT__pctype[i] & MSVCRT_LEADBYTE))
 288       {
 289         str[0] = i;
 290         GetStringTypeA(lcid, CT_CTYPE1, str, 1, MSVCRT__pctype + i);
 291       }
 292     }
 293
 294     /* Set leadbyte flags */
 295     while (traverse[0] || traverse[1])
 296     {
 297       for( i = traverse[0]; i <= traverse[1]; i++ )
 298         MSVCRT_current_ctype[i+1] |= MSVCRT_LEADBYTE;
 299       traverse += 2;
 300     };
 301   }
 302 }
 303
 304
 305 /*********************************************************************
 306  *              setlocale (MSVCRT.@)
 307  */
 308 char* MSVCRT_setlocale(int category, const char* locale)
 309 {
 310   LCID lcid = 0;
 311   locale_search_t lc;
 312   int haveLang, haveCountry, haveCP;
 313   char* next;
 314   int lc_all = 0;
 315
 316   TRACE("(%d %s)\n",category,locale);
 317
 318   if (category < MSVCRT_LC_MIN || category > MSVCRT_LC_MAX)
 319     return NULL;
 320
 321   if (locale == NULL)
 322   {
 323     /* Report the current Locale */
 324     return MSVCRT_current_lc_all;
 325   }
 326
 327   LOCK_LOCALE;
 328
 329   if (locale[0] == 'L' && locale[1] == 'C' && locale[2] == '_')
 330   {
 331     FIXME(":restore previous locale not implemented!\n");
 332     /* FIXME: Easiest way to do this is parse the string and
 333      * call this function recursively with its elements,
 334      * Where they differ for each lc_ type.
 335      */
 336     UNLOCK_LOCALE;
 337     return MSVCRT_current_lc_all;
 338   }
 339
 340   /* Default Locale: Special case handling */
 341   if (!strlen(locale) || ((toupper(locale[0]) == 'C') && !locale[1]))
 342   {
 343     MSVCRT_current_lc_all[0] = 'C';
 344     MSVCRT_current_lc_all[1] = '\0';
 345     MSVCRT_current_lc_all_cp = GetACP();
 346
 347     switch (category) {
 348     case MSVCRT_LC_ALL:
 349       lc_all = 1; /* Fall through all cases ... */
 350     case MSVCRT_LC_COLLATE:
 351       if (!lc_all) break;
 352     case MSVCRT_LC_CTYPE:
 353       /* Restore C locale ctype info */
 354       MSVCRT___mb_cur_max = 1;
 355       memcpy(MSVCRT_current_ctype, MSVCRT__ctype, sizeof(MSVCRT__ctype));
 356       memset(MSVCRT_mbctype, 0, sizeof(MSVCRT_mbctype));
 357       if (!lc_all) break;
 358     case MSVCRT_LC_MONETARY:
 359       if (!lc_all) break;
 360     case MSVCRT_LC_NUMERIC:
 361       if (!lc_all) break;
 362     case MSVCRT_LC_TIME:
 363       break;
 364     }
 365     UNLOCK_LOCALE;
 366     return MSVCRT_current_lc_all;
 367   }
 368
 369   /* Get locale elements */
 370   haveLang = haveCountry = haveCP = 0;
 371   memset(&lc,0,sizeof(lc));
 372
 373   next = strchr(locale,'_');
 374   if (next && next != locale)
 375   {
 376     haveLang = 1;
 377     strncpy(lc.search_language,locale,next-locale);
 378     locale += next-locale+1;
 379   }
 380
 381   next = strchr(locale,'.');
 382   if (next)
 383   {
 384     haveCP = 1;
 385     if (next == locale)
 386     {
 387       locale++;
 388       strncpy(lc.search_codepage, locale, MAX_ELEM_LEN);
 389     }
 390     else
 391     {
 392       if (haveLang)
 393       {
 394         haveCountry = 1;
 395         strncpy(lc.search_country,locale,next-locale);
 396         locale += next-locale+1;
 397       }
 398       else
 399       {
 400         haveLang = 1;
 401         strncpy(lc.search_language,locale,next-locale);
 402         locale += next-locale+1;
 403       }
 404       strncpy(lc.search_codepage, locale, MAX_ELEM_LEN);
 405     }
 406   }
 407   else
 408   {
 409     if (haveLang)
 410     {
 411       haveCountry = 1;
 412       strncpy(lc.search_country, locale, MAX_ELEM_LEN);
 413     }
 414     else
 415     {
 416       haveLang = 1;
 417       strncpy(lc.search_language, locale, MAX_ELEM_LEN);
 418     }
 419   }
 420
 421   if (haveCountry)
 422     remap_synonym(lc.search_country);
 423
 424   if (haveCP && !haveCountry && !haveLang)
 425   {
 426     FIXME(":Codepage only locale not implemented\n");
 427     /* FIXME: Use default lang/country and skip locale_to_LCID()
 428      * call below...
 429      */
 430     UNLOCK_LOCALE;
 431     return NULL;
 432   }
 433
 434   lcid = MSVCRT_locale_to_LCID(&lc);
 435
 436   TRACE(":found LCID %ld\n",lcid);
 437
 438   if (lcid == 0)
 439   {
 440     UNLOCK_LOCALE;
 441     return NULL;
 442   }
 443
 444   MSVCRT_current_lc_all_lcid = lcid;
 445
 446   snprintf(MSVCRT_current_lc_all,MAX_LOCALE_LENGTH,"%s_%s.%s",
 447            lc.found_language,lc.found_country,lc.found_codepage);
 448
 449   switch (category) {
 450   case MSVCRT_LC_ALL:
 451     lc_all = 1; /* Fall through all cases ... */
 452   case MSVCRT_LC_COLLATE:
 453     if (!lc_all) break;
 454   case MSVCRT_LC_CTYPE:
 455     msvcrt_set_ctype(atoi(lc.found_codepage),lcid);
 456     if (!lc_all) break;
 457   case MSVCRT_LC_MONETARY:
 458     if (!lc_all) break;
 459   case MSVCRT_LC_NUMERIC:
 460     if (!lc_all) break;
 461   case MSVCRT_LC_TIME:
 462     break;
 463   }
 464   UNLOCK_LOCALE;
 465   return MSVCRT_current_lc_all;
 466 }
 467
 468
 469 /*********************************************************************
 470  *              _Getdays (MSVCRT.@)
 471  */
 472 const char* _Getdays(void)
 473 {
 474   static const char *MSVCRT_days = ":Sun:Sunday:Mon:Monday:Tue:Tuesday:Wed:"
 475                             "Wednesday:Thu:Thursday:Fri:Friday:Sat:Saturday";
 476   /* FIXME: Use locale */
 477   TRACE("(void) semi-stub\n");
 478   return MSVCRT_days;
 479 }
 480
 481 /*********************************************************************
 482  *              _Getmonths (MSVCRT.@)
 483  */
 484 const char* _Getmonths(void)
 485 {
 486   static const char *MSVCRT_months = ":Jan:January:Feb:February:Mar:March:Apr:"
 487                 "April:May:May:Jun:June:Jul:July:Aug:August:Sep:September:Oct:"
 488                 "October:Nov:November:Dec:December";
 489   /* FIXME: Use locale */
 490   TRACE("(void) semi-stub\n");
 491   return MSVCRT_months;
 492 }
 493
 494 /*********************************************************************
 495  *              _Getnames (MSVCRT.@)
 496  */
 497 const char* _Getnames(void)
 498 {
 499   /* FIXME: */
 500   TRACE("(void) stub\n");
 501   return "";
 502 }
 503
 504 /*********************************************************************
 505  *              _Strftime (MSVCRT.@)
 506  */
 507 const char* _Strftime(char *out, unsigned int len, const char *fmt,
 508                                      const void *tm, void *foo)
 509 {
 510   /* FIXME: */
 511   TRACE("(%p %d %s %p %p) stub\n", out, len, fmt, tm, foo);
 512   return "";
 513 }
 514
 515 /* FIXME: MBCP probably belongs in mbcs.c */
 516
 517 /*********************************************************************
 518  *              _setmbcp (MSVCRT.@)
 519  */
 520 void _setmbcp(int cp)
 521 {
 522   LOCK_LOCALE;
 523   if (MSVCRT_current_lc_all_cp != cp)
 524   {
 525     /* FIXME: set ctype behaviour for this cp */
 526     MSVCRT_current_lc_all_cp = cp;
 527   }
 528   UNLOCK_LOCALE;
 529 }
 530
 531 /*********************************************************************
 532  *              _getmbcp (MSVCRT.@)
 533  */
 534 int _getmbcp(void)
 535 {
 536   return MSVCRT_current_lc_all_cp;
 537 }
 538
 539 /*********************************************************************
 540  *              __crtLCMapStringA (MSVCRT.@)
 541  */
 542 int __crtLCMapStringA(
 543   LCID lcid, DWORD mapflags, const char* src, int srclen, char* dst,
 544   int dstlen, unsigned int codepage, int xflag
 545 ) {
 546   FIXME("(lcid %lx, flags %lx, %s(%d), %p(%d), %x, %d), partial stub!\n",
 547         lcid,mapflags,src,srclen,dst,dstlen,codepage,xflag);
 548   /* FIXME: A bit incorrect. But msvcrt itself just converts its
 549    * arguments to wide strings and then calls LCMapStringW
 550    */
 551   return LCMapStringA(lcid,mapflags,src,srclen,dst,dstlen);
 552 }
 553
 554 /*********************************************************************
 555  *              localeconv (MSVCRT.@)
 556  */
 557 struct MSVCRT_lconv *MSVCRT_localeconv(void) {
 558
 559   struct lconv *ylconv;
 560   static struct MSVCRT_lconv xlconv;
 561
 562   ylconv = localeconv();
 563
 564 #define X(x) xlconv.x = ylconv->x;
 565   X(decimal_point);
 566   X(thousands_sep);
 567   X(grouping);
 568   X(int_curr_symbol);
 569   X(currency_symbol);
 570   X(mon_decimal_point);
 571   X(mon_thousands_sep);
 572   X(mon_grouping);
 573   X(positive_sign);
 574   X(negative_sign);
 575   X(int_frac_digits);
 576   X(frac_digits);
 577   X(p_cs_precedes);
 578   X(p_sep_by_space);
 579   X(n_cs_precedes);
 580   X(n_sep_by_space);
 581   X(p_sign_posn);
 582   X(n_sign_posn);
 583   return &xlconv;
 584 }
 585
 586 /*********************************************************************
 587  *              _Gettnames (MSVCRT.@)
 588  */
 589 void *_Gettnames(void)
 590 {
 591   FIXME("(void), stub!\n");
 592   return NULL;
 593 }