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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 #include "winnls.h"
  32
  33 #include "msvcrt.h"
  34 #include "mtdll.h"
  35 #include "msvcrt/mbctype.h"
  36
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  40
  41 /* FIXME: Need to hold locale for each LC_* type and aggregate
  42  * string to produce lc_all.
  43  */
  44 #define MAX_ELEM_LEN 64 /* Max length of country/language/CP string */
  45 #define MAX_LOCALE_LENGTH 256
  46 char MSVCRT_current_lc_all[MAX_LOCALE_LENGTH] = { 0 };
  47 LCID MSVCRT_current_lc_all_lcid = 0;
  48 int MSVCRT___lc_codepage = 0;
  49 int MSVCRT___lc_collate_cp = 0;
  50 HANDLE MSVCRT___lc_handle[MSVCRT_LC_MAX - MSVCRT_LC_MIN + 1] = { 0 };
  51
  52 /* MT */
  53 #define LOCK_LOCALE   _mlock(_SETLOCALE_LOCK);
  54 #define UNLOCK_LOCALE _munlock(_SETLOCALE_LOCK);
  55
  56 /* ctype data modified when the locale changes */
  57 extern WORD MSVCRT__ctype [257];
  58 extern WORD MSVCRT_current_ctype[257];
  59 extern WORD* MSVCRT__pctype;
  60
  61 /* mbctype data modified when the locale changes */
  62 extern int MSVCRT___mb_cur_max;
  63
  64 #define MSVCRT_LEADBYTE  0x8000
  65
  66 /* Friendly country strings & iso codes for synonym support.
  67  * Based on MS documentation for setlocale().
  68  */
  69 static const char * const _country_synonyms[] =
  70 {
  71   "Hong Kong","HK",
  72   "Hong-Kong","HK",
  73   "New Zealand","NZ",
  74   "New-Zealand","NZ",
  75   "PR China","CN",
  76   "PR-China","CN",
  77   "United Kingdom","GB",
  78   "United-Kingdom","GB",
  79   "Britain","GB",
  80   "England","GB",
  81   "Great Britain","GB",
  82   "United States","US",
  83   "United-States","US",
  84   "America","US"
  85 };
  86
  87 /* INTERNAL: Map a synonym to an ISO code */
  88 static void remap_synonym(char *name)
  89 {
  90   size_t i;
  91   for (i = 0; i < sizeof(_country_synonyms)/sizeof(char*); i += 2 )
  92   {
  93     if (!strcasecmp(_country_synonyms[i],name))
  94     {
  95       TRACE(":Mapping synonym %s to %s\n",name,_country_synonyms[i+1]);
  96       name[0] = _country_synonyms[i+1][0];
  97       name[1] = _country_synonyms[i+1][1];
  98       name[2] = '\0';
  99       return;
 100     }
 101   }
 102 }
 103
 104 /* Note: Flags are weighted in order of matching importance */
 105 #define FOUND_LANGUAGE         0x4
 106 #define FOUND_COUNTRY          0x2
 107 #define FOUND_CODEPAGE         0x1
 108
 109 typedef struct {
 110   char search_language[MAX_ELEM_LEN];
 111   char search_country[MAX_ELEM_LEN];
 112   char search_codepage[MAX_ELEM_LEN];
 113   char found_language[MAX_ELEM_LEN];
 114   char found_country[MAX_ELEM_LEN];
 115   char found_codepage[MAX_ELEM_LEN];
 116   unsigned int match_flags;
 117   LANGID found_lang_id;
 118 } locale_search_t;
 119
 120 #define CONTINUE_LOOKING TRUE
 121 #define STOP_LOOKING     FALSE
 122
 123 /* INTERNAL: Get and compare locale info with a given string */
 124 static int compare_info(LCID lcid, DWORD flags, char* buff, const char* cmp)
 125 {
 126   buff[0] = 0;
 127   GetLocaleInfoA(lcid, flags|LOCALE_NOUSEROVERRIDE,buff, MAX_ELEM_LEN);
 128   if (!buff[0] || !cmp[0])
 129     return 0;
 130   /* Partial matches are allowed, e.g. "Germ" matches "Germany" */
 131   return !strncasecmp(cmp, buff, strlen(cmp));
 132 }
 133
 134 static BOOL CALLBACK
 135 find_best_locale_proc(HMODULE hModule, LPCSTR type, LPCSTR name, WORD LangID, LONG_PTR lParam)
 136 {
 137   locale_search_t *res = (locale_search_t *)lParam;
 138   const LCID lcid = MAKELCID(LangID, SORT_DEFAULT);
 139   char buff[MAX_ELEM_LEN];
 140   unsigned int flags = 0;
 141
 142   if(PRIMARYLANGID(LangID) == LANG_NEUTRAL)
 143     return CONTINUE_LOOKING;
 144
 145   /* Check Language */
 146   if (compare_info(lcid,LOCALE_SISO639LANGNAME,buff,res->search_language) ||
 147       compare_info(lcid,LOCALE_SABBREVLANGNAME,buff,res->search_language) ||
 148       compare_info(lcid,LOCALE_SENGLANGUAGE,buff,res->search_language))
 149   {
 150     TRACE(":Found language: %s->%s\n", res->search_language, buff);
 151     flags |= FOUND_LANGUAGE;
 152     memcpy(res->found_language,res->search_language,MAX_ELEM_LEN);
 153   }
 154   else if (res->match_flags & FOUND_LANGUAGE)
 155   {
 156     return CONTINUE_LOOKING;
 157   }
 158
 159   /* Check Country */
 160   if (compare_info(lcid,LOCALE_SISO3166CTRYNAME,buff,res->search_country) ||
 161       compare_info(lcid,LOCALE_SABBREVCTRYNAME,buff,res->search_country) ||
 162       compare_info(lcid,LOCALE_SENGCOUNTRY,buff,res->search_country))
 163   {
 164     TRACE("Found country:%s->%s\n", res->search_country, buff);
 165     flags |= FOUND_COUNTRY;
 166     memcpy(res->found_country,res->search_country,MAX_ELEM_LEN);
 167   }
 168   else if (res->match_flags & FOUND_COUNTRY)
 169   {
 170     return CONTINUE_LOOKING;
 171   }
 172
 173   /* Check codepage */
 174   if (compare_info(lcid,LOCALE_IDEFAULTCODEPAGE,buff,res->search_codepage) ||
 175       (compare_info(lcid,LOCALE_IDEFAULTANSICODEPAGE,buff,res->search_codepage)))
 176   {
 177     TRACE("Found codepage:%s->%s\n", res->search_codepage, buff);
 178     flags |= FOUND_CODEPAGE;
 179     memcpy(res->found_codepage,res->search_codepage,MAX_ELEM_LEN);
 180   }
 181   else if (res->match_flags & FOUND_CODEPAGE)
 182   {
 183     return CONTINUE_LOOKING;
 184   }
 185
 186   if (flags > res->match_flags)
 187   {
 188     /* Found a better match than previously */
 189     res->match_flags = flags;
 190     res->found_lang_id = LangID;
 191   }
 192   if ((flags & (FOUND_LANGUAGE | FOUND_COUNTRY | FOUND_CODEPAGE)) ==
 193         (FOUND_LANGUAGE | FOUND_COUNTRY | FOUND_CODEPAGE))
 194   {
 195     TRACE(":found exact locale match\n");
 196     return STOP_LOOKING;
 197   }
 198   return CONTINUE_LOOKING;
 199 }
 200
 201 extern int atoi(const char *);
 202
 203 /* Internal: Find the LCID for a locale specification */
 204 static LCID MSVCRT_locale_to_LCID(locale_search_t* locale)
 205 {
 206   LCID lcid;
 207   EnumResourceLanguagesA(GetModuleHandleA("KERNEL32"), (LPSTR)RT_STRING,
 208                          (LPCSTR)LOCALE_ILANGUAGE,find_best_locale_proc,
 209                          (LONG_PTR)locale);
 210
 211   if (!locale->match_flags)
 212     return 0;
 213
 214   /* If we were given something that didn't match, fail */
 215   if (locale->search_country[0] && !(locale->match_flags & FOUND_COUNTRY))
 216     return 0;
 217
 218   lcid =  MAKELCID(locale->found_lang_id, SORT_DEFAULT);
 219
 220   /* Populate partial locale, translating LCID to locale string elements */
 221   if (!locale->found_codepage[0])
 222   {
 223     /* Even if a codepage is not enumerated for a locale
 224      * it can be set if valid */
 225     if (locale->search_codepage[0])
 226     {
 227       if (IsValidCodePage(atoi(locale->search_codepage)))
 228         memcpy(locale->found_codepage,locale->search_codepage,MAX_ELEM_LEN);
 229       else
 230       {
 231         /* Special codepage values: OEM & ANSI */
 232         if (strcasecmp(locale->search_codepage,"OCP"))
 233         {
 234           GetLocaleInfoA(lcid, LOCALE_IDEFAULTCODEPAGE,
 235                          locale->found_codepage, MAX_ELEM_LEN);
 236         }
 237         if (strcasecmp(locale->search_codepage,"ACP"))
 238         {
 239           GetLocaleInfoA(lcid, LOCALE_IDEFAULTANSICODEPAGE,
 240                          locale->found_codepage, MAX_ELEM_LEN);
 241         }
 242         else
 243           return 0;
 244
 245         if (!atoi(locale->found_codepage))
 246            return 0;
 247       }
 248     }
 249     else
 250     {
 251       /* Prefer ANSI codepages if present */
 252       GetLocaleInfoA(lcid, LOCALE_IDEFAULTANSICODEPAGE,
 253                      locale->found_codepage, MAX_ELEM_LEN);
 254       if (!locale->found_codepage[0] || !atoi(locale->found_codepage))
 255           GetLocaleInfoA(lcid, LOCALE_IDEFAULTCODEPAGE,
 256                          locale->found_codepage, MAX_ELEM_LEN);
 257     }
 258   }
 259   GetLocaleInfoA(lcid, LOCALE_SENGLANGUAGE|LOCALE_NOUSEROVERRIDE,
 260                  locale->found_language, MAX_ELEM_LEN);
 261   GetLocaleInfoA(lcid, LOCALE_SENGCOUNTRY|LOCALE_NOUSEROVERRIDE,
 262                  locale->found_country, MAX_ELEM_LEN);
 263   return lcid;
 264 }
 265
 266 /* INTERNAL: Set ctype behaviour for a codepage */
 267 static void msvcrt_set_ctype(unsigned int codepage, LCID lcid)
 268 {
 269   CPINFO cp;
 270
 271   memset(&cp, 0, sizeof(CPINFO));
 272
 273   if (GetCPInfo(codepage, &cp))
 274   {
 275     int i;
 276     char str[3];
 277     unsigned char *traverse = (unsigned char *)cp.LeadByte;
 278
 279     memset(MSVCRT_current_ctype, 0, sizeof(MSVCRT__ctype));
 280     MSVCRT___lc_codepage = codepage;
 281     MSVCRT___lc_collate_cp = codepage;
 282
 283     /* Switch ctype macros to MBCS if needed */
 284     MSVCRT___mb_cur_max = cp.MaxCharSize;
 285
 286     /* Set remaining ctype flags: FIXME: faster way to do this? */
 287     str[1] = str[2] = 0;
 288     for (i = 0; i < 256; i++)
 289     {
 290       if (!(MSVCRT__pctype[i] & MSVCRT_LEADBYTE))
 291       {
 292         str[0] = i;
 293         GetStringTypeA(lcid, CT_CTYPE1, str, 1, MSVCRT__pctype + i);
 294       }
 295     }
 296
 297     /* Set leadbyte flags */
 298     while (traverse[0] || traverse[1])
 299     {
 300       for( i = traverse[0]; i <= traverse[1]; i++ )
 301         MSVCRT_current_ctype[i+1] |= MSVCRT_LEADBYTE;
 302       traverse += 2;
 303     };
 304   }
 305 }
 306
 307
 308 /*********************************************************************
 309  *              setlocale (MSVCRT.@)
 310  */
 311 char* CDECL MSVCRT_setlocale(int category, const char* locale)
 312 {
 313   LCID lcid = 0;
 314   locale_search_t lc;
 315   int haveLang, haveCountry, haveCP;
 316   char* next;
 317   int lc_all = 0;
 318
 319   TRACE("(%d %s)\n",category,locale);
 320
 321   if (category < MSVCRT_LC_MIN || category > MSVCRT_LC_MAX)
 322     return NULL;
 323
 324   if (locale == NULL)
 325   {
 326     /* Report the current Locale */
 327     return MSVCRT_current_lc_all;
 328   }
 329
 330   LOCK_LOCALE;
 331
 332   if (locale[0] == 'L' && locale[1] == 'C' && locale[2] == '_')
 333   {
 334     FIXME(":restore previous locale not implemented!\n");
 335     /* FIXME: Easiest way to do this is parse the string and
 336      * call this function recursively with its elements,
 337      * Where they differ for each lc_ type.
 338      */
 339     UNLOCK_LOCALE;
 340     return MSVCRT_current_lc_all;
 341   }
 342
 343   /* Default Locale: Special case handling */
 344   if (!strlen(locale) || ((toupper(locale[0]) == 'C') && !locale[1]))
 345   {
 346     MSVCRT_current_lc_all[0] = 'C';
 347     MSVCRT_current_lc_all[1] = '\0';
 348     MSVCRT___lc_codepage = GetACP();
 349     MSVCRT___lc_collate_cp = GetACP();
 350
 351     switch (category) {
 352     case MSVCRT_LC_ALL:
 353       lc_all = 1; /* Fall through all cases ... */
 354     case MSVCRT_LC_COLLATE:
 355       if (!lc_all) break;
 356     case MSVCRT_LC_CTYPE:
 357       /* Restore C locale ctype info */
 358       MSVCRT___mb_cur_max = 1;
 359       memcpy(MSVCRT_current_ctype, MSVCRT__ctype, sizeof(MSVCRT__ctype));
 360       if (!lc_all) break;
 361     case MSVCRT_LC_MONETARY:
 362       if (!lc_all) break;
 363     case MSVCRT_LC_NUMERIC:
 364       if (!lc_all) break;
 365     case MSVCRT_LC_TIME:
 366       break;
 367     }
 368     UNLOCK_LOCALE;
 369     return MSVCRT_current_lc_all;
 370   }
 371
 372   /* Get locale elements */
 373   haveLang = haveCountry = haveCP = 0;
 374   memset(&lc,0,sizeof(lc));
 375
 376   next = strchr(locale,'_');
 377   if (next && next != locale)
 378   {
 379     haveLang = 1;
 380     memcpy(lc.search_language,locale,next-locale);
 381     locale += next-locale+1;
 382   }
 383
 384   next = strchr(locale,'.');
 385   if (next)
 386   {
 387     haveCP = 1;
 388     if (next == locale)
 389     {
 390       locale++;
 391       lstrcpynA(lc.search_codepage, locale, MAX_ELEM_LEN);
 392     }
 393     else
 394     {
 395       if (haveLang)
 396       {
 397         haveCountry = 1;
 398         memcpy(lc.search_country,locale,next-locale);
 399         locale += next-locale+1;
 400       }
 401       else
 402       {
 403         haveLang = 1;
 404         memcpy(lc.search_language,locale,next-locale);
 405         locale += next-locale+1;
 406       }
 407       lstrcpynA(lc.search_codepage, locale, MAX_ELEM_LEN);
 408     }
 409   }
 410   else
 411   {
 412     if (haveLang)
 413     {
 414       haveCountry = 1;
 415       lstrcpynA(lc.search_country, locale, MAX_ELEM_LEN);
 416     }
 417     else
 418     {
 419       haveLang = 1;
 420       lstrcpynA(lc.search_language, locale, MAX_ELEM_LEN);
 421     }
 422   }
 423
 424   if (haveCountry)
 425     remap_synonym(lc.search_country);
 426
 427   if (haveCP && !haveCountry && !haveLang)
 428   {
 429     FIXME(":Codepage only locale not implemented\n");
 430     /* FIXME: Use default lang/country and skip locale_to_LCID()
 431      * call below...
 432      */
 433     UNLOCK_LOCALE;
 434     return NULL;
 435   }
 436
 437   lcid = MSVCRT_locale_to_LCID(&lc);
 438
 439   TRACE(":found LCID %d\n",lcid);
 440
 441   if (lcid == 0)
 442   {
 443     UNLOCK_LOCALE;
 444     return NULL;
 445   }
 446
 447   MSVCRT_current_lc_all_lcid = lcid;
 448
 449   snprintf(MSVCRT_current_lc_all,MAX_LOCALE_LENGTH,"%s_%s.%s",
 450            lc.found_language,lc.found_country,lc.found_codepage);
 451
 452   switch (category) {
 453   case MSVCRT_LC_ALL:
 454     lc_all = 1; /* Fall through all cases ... */
 455   case MSVCRT_LC_COLLATE:
 456     if (!lc_all) break;
 457   case MSVCRT_LC_CTYPE:
 458     msvcrt_set_ctype(atoi(lc.found_codepage),lcid);
 459     if (!lc_all) break;
 460   case MSVCRT_LC_MONETARY:
 461     if (!lc_all) break;
 462   case MSVCRT_LC_NUMERIC:
 463     if (!lc_all) break;
 464   case MSVCRT_LC_TIME:
 465     break;
 466   }
 467   UNLOCK_LOCALE;
 468   return MSVCRT_current_lc_all;
 469 }
 470
 471 /*********************************************************************
 472  *              setlocale (MSVCRT.@)
 473  */
 474 MSVCRT_wchar_t* CDECL MSVCRT__wsetlocale(int category, const MSVCRT_wchar_t* locale)
 475 {
 476   static MSVCRT_wchar_t fake[] = {
 477     'E','n','g','l','i','s','h','_','U','n','i','t','e','d',' ',
 478     'S','t','a','t','e','s','.','1','2','5','2',0 };
 479
 480   FIXME("%d %s\n", category, debugstr_w(locale));
 481
 482   return fake;
 483 }
 484
 485 /*********************************************************************
 486  *              _Getdays (MSVCRT.@)
 487  */
 488 const char* CDECL _Getdays(void)
 489 {
 490   static const char MSVCRT_days[] = ":Sun:Sunday:Mon:Monday:Tue:Tuesday:Wed:"
 491                             "Wednesday:Thu:Thursday:Fri:Friday:Sat:Saturday";
 492   /* FIXME: Use locale */
 493   TRACE("(void) semi-stub\n");
 494   return MSVCRT_days;
 495 }
 496
 497 /*********************************************************************
 498  *              _Getmonths (MSVCRT.@)
 499  */
 500 const char* CDECL _Getmonths(void)
 501 {
 502   static const char MSVCRT_months[] = ":Jan:January:Feb:February:Mar:March:Apr:"
 503                 "April:May:May:Jun:June:Jul:July:Aug:August:Sep:September:Oct:"
 504                 "October:Nov:November:Dec:December";
 505   /* FIXME: Use locale */
 506   TRACE("(void) semi-stub\n");
 507   return MSVCRT_months;
 508 }
 509
 510 /*********************************************************************
 511  *              _Gettnames (MSVCRT.@)
 512  */
 513 const char* CDECL _Gettnames(void)
 514 {
 515   /* FIXME: */
 516   TRACE("(void) stub\n");
 517   return "";
 518 }
 519
 520 /*********************************************************************
 521  *              _Strftime (MSVCRT.@)
 522  */
 523 const char* CDECL _Strftime(char *out, unsigned int len, const char *fmt,
 524                             const void *tm, void *foo)
 525 {
 526   /* FIXME: */
 527   TRACE("(%p %d %s %p %p) stub\n", out, len, fmt, tm, foo);
 528   return "";
 529 }
 530
 531 /*********************************************************************
 532  *              __crtLCMapStringA (MSVCRT.@)
 533  */
 534 int CDECL __crtLCMapStringA(
 535   LCID lcid, DWORD mapflags, const char* src, int srclen, char* dst,
 536   int dstlen, unsigned int codepage, int xflag
 537 ) {
 538   FIXME("(lcid %x, flags %x, %s(%d), %p(%d), %x, %d), partial stub!\n",
 539         lcid,mapflags,src,srclen,dst,dstlen,codepage,xflag);
 540   /* FIXME: A bit incorrect. But msvcrt itself just converts its
 541    * arguments to wide strings and then calls LCMapStringW
 542    */
 543   return LCMapStringA(lcid,mapflags,src,srclen,dst,dstlen);
 544 }
 545
 546 /*********************************************************************
 547  *              __crtCompareStringA (MSVCRT.@)
 548  */
 549 int CDECL __crtCompareStringA( LCID lcid, DWORD flags, const char *src1, int len1,
 550                                const char *src2, int len2 )
 551 {
 552     FIXME("(lcid %x, flags %x, %s(%d), %s(%d), partial stub\n",
 553           lcid, flags, debugstr_a(src1), len1, debugstr_a(src2), len2 );
 554     /* FIXME: probably not entirely right */
 555     return CompareStringA( lcid, flags, src1, len1, src2, len2 );
 556 }
 557
 558 /*********************************************************************
 559  *              __crtCompareStringW (MSVCRT.@)
 560  */
 561 int CDECL __crtCompareStringW( LCID lcid, DWORD flags, const MSVCRT_wchar_t *src1, int len1,
 562                                const MSVCRT_wchar_t *src2, int len2 )
 563 {
 564     FIXME("(lcid %x, flags %x, %s(%d), %s(%d), partial stub\n",
 565           lcid, flags, debugstr_w(src1), len1, debugstr_w(src2), len2 );
 566     /* FIXME: probably not entirely right */
 567     return CompareStringW( lcid, flags, src1, len1, src2, len2 );
 568 }
 569
 570 /*********************************************************************
 571  *              __crtGetLocaleInfoW (MSVCRT.@)
 572  */
 573 int CDECL __crtGetLocaleInfoW( LCID lcid, LCTYPE type, MSVCRT_wchar_t *buffer, int len )
 574 {
 575     FIXME("(lcid %x, type %x, %p(%d), partial stub\n", lcid, type, buffer, len );
 576     /* FIXME: probably not entirely right */
 577     return GetLocaleInfoW( lcid, type, buffer, len );
 578 }
 579
 580 /*********************************************************************
 581  *              localeconv (MSVCRT.@)
 582  */
 583 struct MSVCRT_lconv * CDECL MSVCRT_localeconv(void) {
 584
 585   struct lconv *ylconv;
 586   static struct MSVCRT_lconv xlconv;
 587
 588   ylconv = localeconv();
 589
 590 #define X(x) xlconv.x = ylconv->x;
 591   X(decimal_point);
 592   X(thousands_sep);
 593   X(grouping);
 594   X(int_curr_symbol);
 595   X(currency_symbol);
 596   X(mon_decimal_point);
 597   X(mon_thousands_sep);
 598   X(mon_grouping);
 599   X(positive_sign);
 600   X(negative_sign);
 601   X(int_frac_digits);
 602   X(frac_digits);
 603   X(p_cs_precedes);
 604   X(p_sep_by_space);
 605   X(n_cs_precedes);
 606   X(n_sep_by_space);
 607   X(p_sign_posn);
 608   X(n_sign_posn);
 609   return &xlconv;
 610 }
 611
 612 /*********************************************************************
 613  *              __lconv_init (MSVCRT.@)
 614  */
 615 void CDECL __lconv_init(void)
 616 {
 617   FIXME(" stub\n");
 618 }