src/common/intl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/intl.cpp
   3 // Purpose:     Internationalization and localisation for wxWidgets
   4 // Author:      Vadim Zeitlin
   5 // Modified by: Michael N. Filippov <michael@idisys.iae.nsk.su>
   6 //              (2003/09/30 - PluralForms support)
   7 // Created:     29/01/98
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 // ============================================================================
  14 // declaration
  15 // ============================================================================
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 // For compilers that support precompilation, includes "wx.h".
  22 #include "wx/wxprec.h"
  23
  24 #ifdef __BORLANDC__
  25     #pragma hdrstop
  26 #endif
  27
  28 #ifdef __EMX__
  29 // The following define is needed by Innotek's libc to
  30 // make the definition of struct localeconv available.
  31 #define __INTERNAL_DEFS
  32 #endif
  33
  34 #if wxUSE_INTL
  35
  36 #ifndef WX_PRECOMP
  37     #include "wx/dynarray.h"
  38     #include "wx/string.h"
  39     #include "wx/intl.h"
  40     #include "wx/log.h"
  41     #include "wx/utils.h"
  42     #include "wx/app.h"
  43     #include "wx/hashmap.h"
  44     #include "wx/module.h"
  45 #endif // WX_PRECOMP
  46
  47 #ifndef __WXWINCE__
  48     #include <locale.h>
  49 #endif
  50
  51 // standard headers
  52 #include <ctype.h>
  53 #include <stdlib.h>
  54 #ifdef HAVE_LANGINFO_H
  55     #include <langinfo.h>
  56 #endif
  57
  58 #ifdef __WIN32__
  59     #include "wx/msw/private.h"
  60 #endif
  61
  62 #include "wx/file.h"
  63 #include "wx/filename.h"
  64 #include "wx/tokenzr.h"
  65 #include "wx/fontmap.h"
  66 #include "wx/scopedptr.h"
  67 #include "wx/apptrait.h"
  68 #include "wx/stdpaths.h"
  69 #include "wx/hashset.h"
  70
  71 #if defined(__WXOSX__)
  72     #include "wx/osx/core/cfref.h"
  73     #include <CoreFoundation/CFLocale.h>
  74     #include <CoreFoundation/CFDateFormatter.h>
  75     #include "wx/osx/core/cfstring.h"
  76 #endif
  77
  78 // ----------------------------------------------------------------------------
  79 // constants
  80 // ----------------------------------------------------------------------------
  81
  82 #define TRACE_I18N wxS("i18n")
  83
  84 // ============================================================================
  85 // implementation
  86 // ============================================================================
  87
  88 // ----------------------------------------------------------------------------
  89 // global functions
  90 // ----------------------------------------------------------------------------
  91
  92 static wxLocale *wxSetLocale(wxLocale *pLocale);
  93
  94 namespace
  95 {
  96
  97 // get just the language part ("en" in "en_GB")
  98 inline wxString ExtractLang(const wxString& langFull)
  99 {
 100     return langFull.BeforeFirst('_');
 101 }
 102
 103 // helper functions of GetSystemLanguage()
 104 #ifdef __UNIX__
 105
 106 // get everything else (including the leading '_')
 107 inline wxString ExtractNotLang(const wxString& langFull)
 108 {
 109     size_t pos = langFull.find('_');
 110     if ( pos != wxString::npos )
 111         return langFull.substr(pos);
 112     else
 113         return wxString();
 114 }
 115
 116 #endif // __UNIX__
 117
 118 } // anonymous namespace
 119
 120 // ----------------------------------------------------------------------------
 121 // wxLanguageInfo
 122 // ----------------------------------------------------------------------------
 123
 124 #ifdef __WINDOWS__
 125
 126 // helper used by wxLanguageInfo::GetLocaleName() and elsewhere to determine
 127 // whether the locale is Unicode-only (it is if this function returns empty
 128 // string)
 129 static wxString wxGetANSICodePageForLocale(LCID lcid)
 130 {
 131     wxString cp;
 132
 133     wxChar buffer[16];
 134     if ( ::GetLocaleInfo(lcid, LOCALE_IDEFAULTANSICODEPAGE,
 135                         buffer, WXSIZEOF(buffer)) > 0 )
 136     {
 137         if ( buffer[0] != wxT('0') || buffer[1] != wxT('\0') )
 138             cp = buffer;
 139         //else: this locale doesn't use ANSI code page
 140     }
 141
 142     return cp;
 143 }
 144
 145 wxUint32 wxLanguageInfo::GetLCID() const
 146 {
 147     return MAKELCID(MAKELANGID(WinLang, WinSublang), SORT_DEFAULT);
 148 }
 149
 150 wxString wxLanguageInfo::GetLocaleName() const
 151 {
 152     wxString locale;
 153
 154     const LCID lcid = GetLCID();
 155
 156     wxChar buffer[256];
 157     buffer[0] = wxT('\0');
 158     if ( !::GetLocaleInfo(lcid, LOCALE_SENGLANGUAGE, buffer, WXSIZEOF(buffer)) )
 159     {
 160         wxLogLastError(wxT("GetLocaleInfo(LOCALE_SENGLANGUAGE)"));
 161         return locale;
 162     }
 163
 164     locale << buffer;
 165     if ( ::GetLocaleInfo(lcid, LOCALE_SENGCOUNTRY,
 166                         buffer, WXSIZEOF(buffer)) > 0 )
 167     {
 168         locale << wxT('_') << buffer;
 169     }
 170
 171     const wxString cp = wxGetANSICodePageForLocale(lcid);
 172     if ( !cp.empty() )
 173     {
 174         locale << wxT('.') << cp;
 175     }
 176
 177     return locale;
 178 }
 179
 180 #endif // __WINDOWS__
 181
 182 // ----------------------------------------------------------------------------
 183 // wxLocale
 184 // ----------------------------------------------------------------------------
 185
 186 #include "wx/arrimpl.cpp"
 187 WX_DECLARE_EXPORTED_OBJARRAY(wxLanguageInfo, wxLanguageInfoArray);
 188 WX_DEFINE_OBJARRAY(wxLanguageInfoArray)
 189
 190 wxLanguageInfoArray *wxLocale::ms_languagesDB = NULL;
 191
 192 /*static*/ void wxLocale::CreateLanguagesDB()
 193 {
 194     if (ms_languagesDB == NULL)
 195     {
 196         ms_languagesDB = new wxLanguageInfoArray;
 197         InitLanguagesDB();
 198     }
 199 }
 200
 201 /*static*/ void wxLocale::DestroyLanguagesDB()
 202 {
 203     wxDELETE(ms_languagesDB);
 204 }
 205
 206
 207 void wxLocale::DoCommonInit()
 208 {
 209     m_pszOldLocale = NULL;
 210
 211     m_pOldLocale = wxSetLocale(this);
 212
 213     // Set translations object, but only if the user didn't do so yet.
 214     // This is to preserve compatibility with wx-2.8 where wxLocale was
 215     // the only API for translations. wxLocale works as a stack, with
 216     // latest-created one being the active one:
 217     //     wxLocale loc_fr(wxLANGUAGE_FRENCH);
 218     //     // _() returns French
 219     //     {
 220     //         wxLocale loc_cs(wxLANGUAGE_CZECH);
 221     //         // _() returns Czech
 222     //     }
 223     //     // _() returns French again
 224     wxTranslations *oldTrans = wxTranslations::Get();
 225     if ( !oldTrans ||
 226          (m_pOldLocale && oldTrans == &m_pOldLocale->m_translations) )
 227     {
 228         wxTranslations::SetNonOwned(&m_translations);
 229     }
 230
 231     m_language = wxLANGUAGE_UNKNOWN;
 232     m_initialized = false;
 233 }
 234
 235 // NB: this function has (desired) side effect of changing current locale
 236 bool wxLocale::Init(const wxString& name,
 237                     const wxString& shortName,
 238                     const wxString& locale,
 239                     bool            bLoadDefault
 240 #if WXWIN_COMPATIBILITY_2_8
 241                    ,bool            WXUNUSED_UNLESS_DEBUG(bConvertEncoding)
 242 #endif
 243                     )
 244 {
 245 #if WXWIN_COMPATIBILITY_2_8
 246     wxASSERT_MSG( bConvertEncoding,
 247                   wxS("wxLocale::Init with bConvertEncoding=false is no longer supported, add charset to your catalogs") );
 248 #endif
 249
 250     bool ret = DoInit(name, shortName, locale);
 251
 252     // NB: don't use 'lang' here, 'language' may be wxLANGUAGE_DEFAULT
 253     wxTranslations *t = wxTranslations::Get();
 254     if ( t )
 255     {
 256         t->SetLanguage(shortName);
 257
 258         if ( bLoadDefault )
 259             t->AddStdCatalog();
 260     }
 261
 262     return ret;
 263 }
 264
 265 bool wxLocale::DoInit(const wxString& name,
 266                       const wxString& shortName,
 267                       const wxString& locale)
 268 {
 269     wxASSERT_MSG( !m_initialized,
 270                     wxS("you can't call wxLocale::Init more than once") );
 271
 272     m_initialized = true;
 273     m_strLocale = name;
 274     m_strShort = shortName;
 275     m_language = wxLANGUAGE_UNKNOWN;
 276
 277     // change current locale (default: same as long name)
 278     wxString szLocale(locale);
 279     if ( szLocale.empty() )
 280     {
 281         // the argument to setlocale()
 282         szLocale = shortName;
 283
 284         wxCHECK_MSG( !szLocale.empty(), false,
 285                     wxS("no locale to set in wxLocale::Init()") );
 286     }
 287
 288     const char *oldLocale = wxSetlocale(LC_ALL, szLocale);
 289     if ( oldLocale )
 290         m_pszOldLocale = wxStrdup(oldLocale);
 291     else
 292         m_pszOldLocale = NULL;
 293
 294     if ( m_pszOldLocale == NULL )
 295     {
 296         wxLogError(_("locale '%s' cannot be set."), szLocale);
 297     }
 298
 299     // the short name will be used to look for catalog files as well,
 300     // so we need something here
 301     if ( m_strShort.empty() ) {
 302         // FIXME I don't know how these 2 letter abbreviations are formed,
 303         //       this wild guess is surely wrong
 304         if ( !szLocale.empty() )
 305         {
 306             m_strShort += (wxChar)wxTolower(szLocale[0]);
 307             if ( szLocale.length() > 1 )
 308                 m_strShort += (wxChar)wxTolower(szLocale[1]);
 309         }
 310     }
 311
 312     return true;
 313 }
 314
 315
 316 #if defined(__UNIX__) && wxUSE_UNICODE && !defined(__WXMAC__)
 317 static const char *wxSetlocaleTryUTF8(int c, const wxString& lc)
 318 {
 319     const char *l = NULL;
 320
 321     // NB: We prefer to set UTF-8 locale if it's possible and only fall back to
 322     //     non-UTF-8 locale if it fails
 323
 324     if ( !lc.empty() )
 325     {
 326         wxString buf(lc);
 327         wxString buf2;
 328         buf2 = buf + wxS(".UTF-8");
 329         l = wxSetlocale(c, buf2);
 330         if ( !l )
 331         {
 332             buf2 = buf + wxS(".utf-8");
 333             l = wxSetlocale(c, buf2);
 334         }
 335         if ( !l )
 336         {
 337             buf2 = buf + wxS(".UTF8");
 338             l = wxSetlocale(c, buf2);
 339         }
 340         if ( !l )
 341         {
 342             buf2 = buf + wxS(".utf8");
 343             l = wxSetlocale(c, buf2);
 344         }
 345     }
 346
 347     // if we can't set UTF-8 locale, try non-UTF-8 one:
 348     if ( !l )
 349         l = wxSetlocale(c, lc);
 350
 351     return l;
 352 }
 353 #else
 354 #define wxSetlocaleTryUTF8(c, lc)  wxSetlocale(c, lc)
 355 #endif
 356
 357 bool wxLocale::Init(int language, int flags)
 358 {
 359 #if WXWIN_COMPATIBILITY_2_8
 360     wxASSERT_MSG( !(flags & wxLOCALE_CONV_ENCODING),
 361                   wxS("wxLOCALE_CONV_ENCODING is no longer supported, add charset to your catalogs") );
 362 #endif
 363
 364     bool ret = true;
 365
 366     int lang = language;
 367     if (lang == wxLANGUAGE_DEFAULT)
 368     {
 369         // auto detect the language
 370         lang = GetSystemLanguage();
 371     }
 372
 373     // We failed to detect system language, so we will use English:
 374     if (lang == wxLANGUAGE_UNKNOWN)
 375     {
 376         return false;
 377     }
 378
 379     const wxLanguageInfo *info = GetLanguageInfo(lang);
 380
 381     // Unknown language:
 382     if (info == NULL)
 383     {
 384         wxLogError(wxS("Unknown language %i."), lang);
 385         return false;
 386     }
 387
 388     wxString name = info->Description;
 389     wxString canonical = info->CanonicalName;
 390     wxString locale;
 391
 392     // Set the locale:
 393 #if defined(__OS2__)
 394     const char *retloc = wxSetlocale(LC_ALL , wxEmptyString);
 395 #elif defined(__UNIX__) && !defined(__WXMAC__)
 396     if (language != wxLANGUAGE_DEFAULT)
 397         locale = info->CanonicalName;
 398
 399     const char *retloc = wxSetlocaleTryUTF8(LC_ALL, locale);
 400
 401     const wxString langOnly = ExtractLang(locale);
 402     if ( !retloc )
 403     {
 404         // Some C libraries don't like xx_YY form and require xx only
 405         retloc = wxSetlocaleTryUTF8(LC_ALL, langOnly);
 406     }
 407
 408 #if wxUSE_FONTMAP
 409     // some systems (e.g. FreeBSD and HP-UX) don't have xx_YY aliases but
 410     // require the full xx_YY.encoding form, so try using UTF-8 because this is
 411     // the only thing we can do generically
 412     //
 413     // TODO: add encodings applicable to each language to the lang DB and try
 414     //       them all in turn here
 415     if ( !retloc )
 416     {
 417         const wxChar **names =
 418             wxFontMapperBase::GetAllEncodingNames(wxFONTENCODING_UTF8);
 419         while ( *names )
 420         {
 421             retloc = wxSetlocale(LC_ALL, locale + wxS('.') + *names++);
 422             if ( retloc )
 423                 break;
 424         }
 425     }
 426 #endif // wxUSE_FONTMAP
 427
 428     if ( !retloc )
 429     {
 430         // Some C libraries (namely glibc) still use old ISO 639,
 431         // so will translate the abbrev for them
 432         wxString localeAlt;
 433         if ( langOnly == wxS("he") )
 434             localeAlt = wxS("iw") + ExtractNotLang(locale);
 435         else if ( langOnly == wxS("id") )
 436             localeAlt = wxS("in") + ExtractNotLang(locale);
 437         else if ( langOnly == wxS("yi") )
 438             localeAlt = wxS("ji") + ExtractNotLang(locale);
 439         else if ( langOnly == wxS("nb") )
 440             localeAlt = wxS("no_NO");
 441         else if ( langOnly == wxS("nn") )
 442             localeAlt = wxS("no_NY");
 443
 444         if ( !localeAlt.empty() )
 445         {
 446             retloc = wxSetlocaleTryUTF8(LC_ALL, localeAlt);
 447             if ( !retloc )
 448                 retloc = wxSetlocaleTryUTF8(LC_ALL, ExtractLang(localeAlt));
 449         }
 450     }
 451
 452     if ( !retloc )
 453         ret = false;
 454
 455 #ifdef __AIX__
 456     // at least in AIX 5.2 libc is buggy and the string returned from
 457     // setlocale(LC_ALL) can't be passed back to it because it returns 6
 458     // strings (one for each locale category), i.e. for C locale we get back
 459     // "C C C C C C"
 460     //
 461     // this contradicts IBM own docs but this is not of much help, so just work
 462     // around it in the crudest possible manner
 463     char* p = const_cast<char*>(wxStrchr(retloc, ' '));
 464     if ( p )
 465         *p = '\0';
 466 #endif // __AIX__
 467
 468 #elif defined(__WIN32__)
 469     const char *retloc = "C";
 470     if ( language != wxLANGUAGE_DEFAULT )
 471     {
 472         if ( info->WinLang == 0 )
 473         {
 474             wxLogWarning(wxS("Locale '%s' not supported by OS."), name.c_str());
 475             // retloc already set to "C"
 476         }
 477         else // language supported by Windows
 478         {
 479             // Windows CE doesn't have SetThreadLocale() and there doesn't seem
 480             // to be any equivalent
 481 #ifndef __WXWINCE__
 482             const wxUint32 lcid = info->GetLCID();
 483
 484             // change locale used by Windows functions
 485             ::SetThreadLocale(lcid);
 486 #endif
 487
 488             // and also call setlocale() to change locale used by the CRT
 489             locale = info->GetLocaleName();
 490             if ( locale.empty() )
 491             {
 492                 ret = false;
 493             }
 494             else // have a valid locale
 495             {
 496                 retloc = wxSetlocale(LC_ALL, locale);
 497             }
 498         }
 499     }
 500     else // language == wxLANGUAGE_DEFAULT
 501     {
 502         retloc = wxSetlocale(LC_ALL, wxEmptyString);
 503     }
 504
 505 #if wxUSE_UNICODE && (defined(__VISUALC__) || defined(__MINGW32__))
 506     // VC++ setlocale() (also used by Mingw) can't set locale to languages that
 507     // can only be written using Unicode, therefore wxSetlocale() call fails
 508     // for such languages but we don't want to report it as an error -- so that
 509     // at least message catalogs can be used.
 510     if ( !retloc )
 511     {
 512         if ( wxGetANSICodePageForLocale(LOCALE_USER_DEFAULT).empty() )
 513         {
 514             // we set the locale to a Unicode-only language, don't treat the
 515             // inability of CRT to use it as an error
 516             retloc = "C";
 517         }
 518     }
 519 #endif // CRT not handling Unicode-only languages
 520
 521     if ( !retloc )
 522         ret = false;
 523 #elif defined(__WXMAC__)
 524     if (lang == wxLANGUAGE_DEFAULT)
 525         locale = wxEmptyString;
 526     else
 527         locale = info->CanonicalName;
 528
 529     const char *retloc = wxSetlocale(LC_ALL, locale);
 530
 531     if ( !retloc )
 532     {
 533         // Some C libraries don't like xx_YY form and require xx only
 534         retloc = wxSetlocale(LC_ALL, ExtractLang(locale));
 535     }
 536 #else
 537     wxUnusedVar(flags);
 538     return false;
 539     #define WX_NO_LOCALE_SUPPORT
 540 #endif
 541
 542 #ifndef WX_NO_LOCALE_SUPPORT
 543     if ( !ret )
 544     {
 545         wxLogWarning(_("Cannot set locale to language \"%s\"."), name.c_str());
 546
 547         // continue nevertheless and try to load at least the translations for
 548         // this language
 549     }
 550
 551     if ( !DoInit(name, canonical, retloc) )
 552     {
 553         ret = false;
 554     }
 555
 556     if (IsOk()) // setlocale() succeeded
 557         m_language = lang;
 558
 559     // NB: don't use 'lang' here, 'language'
 560     wxTranslations *t = wxTranslations::Get();
 561     if ( t )
 562     {
 563         t->SetLanguage(static_cast<wxLanguage>(language));
 564
 565         if ( flags & wxLOCALE_LOAD_DEFAULT )
 566             t->AddStdCatalog();
 567     }
 568
 569     return ret;
 570 #endif // !WX_NO_LOCALE_SUPPORT
 571 }
 572
 573 /*static*/ int wxLocale::GetSystemLanguage()
 574 {
 575     CreateLanguagesDB();
 576
 577     // init i to avoid compiler warning
 578     size_t i = 0,
 579         count = ms_languagesDB->GetCount();
 580
 581 #if defined(__UNIX__)
 582     // first get the string identifying the language from the environment
 583     wxString langFull;
 584 #ifdef __WXMAC__
 585     wxCFRef<CFLocaleRef> userLocaleRef(CFLocaleCopyCurrent());
 586
 587     // because the locale identifier (kCFLocaleIdentifier) is formatted a little bit differently, eg
 588     // az_Cyrl_AZ@calendar=buddhist;currency=JPY we just recreate the base info as expected by wx here
 589
 590     wxCFStringRef str(wxCFRetain((CFStringRef)CFLocaleGetValue(userLocaleRef, kCFLocaleLanguageCode)));
 591     langFull = str.AsString()+"_";
 592     str.reset(wxCFRetain((CFStringRef)CFLocaleGetValue(userLocaleRef, kCFLocaleCountryCode)));
 593     langFull += str.AsString();
 594 #else
 595     if (!wxGetEnv(wxS("LC_ALL"), &langFull) &&
 596         !wxGetEnv(wxS("LC_MESSAGES"), &langFull) &&
 597         !wxGetEnv(wxS("LANG"), &langFull))
 598     {
 599         // no language specified, treat it as English
 600         return wxLANGUAGE_ENGLISH_US;
 601     }
 602
 603     if ( langFull == wxS("C") || langFull == wxS("POSIX") )
 604     {
 605         // default C locale is English too
 606         return wxLANGUAGE_ENGLISH_US;
 607     }
 608 #endif
 609
 610     // the language string has the following form
 611     //
 612     //      lang[_LANG][.encoding][@modifier]
 613     //
 614     // (see environ(5) in the Open Unix specification)
 615     //
 616     // where lang is the primary language, LANG is a sublang/territory,
 617     // encoding is the charset to use and modifier "allows the user to select
 618     // a specific instance of localization data within a single category"
 619     //
 620     // for example, the following strings are valid:
 621     //      fr
 622     //      fr_FR
 623     //      de_DE.iso88591
 624     //      de_DE@euro
 625     //      de_DE.iso88591@euro
 626
 627     // for now we don't use the encoding, although we probably should (doing
 628     // translations of the msg catalogs on the fly as required) (TODO)
 629     //
 630     // we need the modified for languages like Valencian: ca_ES@valencia
 631     // though, remember it
 632     wxString modifier;
 633     size_t posModifier = langFull.find_first_of(wxS("@"));
 634     if ( posModifier != wxString::npos )
 635         modifier = langFull.Mid(posModifier);
 636
 637     size_t posEndLang = langFull.find_first_of(wxS("@."));
 638     if ( posEndLang != wxString::npos )
 639     {
 640         langFull.Truncate(posEndLang);
 641     }
 642
 643     // do we have just the language (or sublang too)?
 644     const bool justLang = langFull.find('_') == wxString::npos;
 645
 646     // 0. Make sure the lang is according to latest ISO 639
 647     //    (this is necessary because glibc uses iw and in instead
 648     //    of he and id respectively).
 649
 650     // the language itself (second part is the dialect/sublang)
 651     wxString langOrig = ExtractLang(langFull);
 652
 653     wxString lang;
 654     if ( langOrig == wxS("iw"))
 655         lang = wxS("he");
 656     else if (langOrig == wxS("in"))
 657         lang = wxS("id");
 658     else if (langOrig == wxS("ji"))
 659         lang = wxS("yi");
 660     else if (langOrig == wxS("no_NO"))
 661         lang = wxS("nb_NO");
 662     else if (langOrig == wxS("no_NY"))
 663         lang = wxS("nn_NO");
 664     else if (langOrig == wxS("no"))
 665         lang = wxS("nb_NO");
 666     else
 667         lang = langOrig;
 668
 669     // did we change it?
 670     if ( lang != langOrig )
 671     {
 672         langFull = lang + ExtractNotLang(langFull);
 673     }
 674
 675     // 1. Try to find the language either as is:
 676     // a) With modifier if set
 677     if ( !modifier.empty() )
 678     {
 679         wxString langFullWithModifier = langFull + modifier;
 680         for ( i = 0; i < count; i++ )
 681         {
 682             if ( ms_languagesDB->Item(i).CanonicalName == langFullWithModifier )
 683                 break;
 684         }
 685     }
 686
 687     // b) Without modifier
 688     if ( modifier.empty() || i == count )
 689     {
 690         for ( i = 0; i < count; i++ )
 691         {
 692             if ( ms_languagesDB->Item(i).CanonicalName == langFull )
 693                 break;
 694         }
 695     }
 696
 697     // 2. If langFull is of the form xx_YY, try to find xx:
 698     if ( i == count && !justLang )
 699     {
 700         for ( i = 0; i < count; i++ )
 701         {
 702             if ( ms_languagesDB->Item(i).CanonicalName == lang )
 703             {
 704                 break;
 705             }
 706         }
 707     }
 708
 709     // 3. If langFull is of the form xx, try to find any xx_YY record:
 710     if ( i == count && justLang )
 711     {
 712         for ( i = 0; i < count; i++ )
 713         {
 714             if ( ExtractLang(ms_languagesDB->Item(i).CanonicalName)
 715                     == langFull )
 716             {
 717                 break;
 718             }
 719         }
 720     }
 721
 722
 723     if ( i == count )
 724     {
 725         // In addition to the format above, we also can have full language
 726         // names in LANG env var - for example, SuSE is known to use
 727         // LANG="german" - so check for use of non-standard format and try to
 728         // find the name in verbose description.
 729         for ( i = 0; i < count; i++ )
 730         {
 731             if (ms_languagesDB->Item(i).Description.CmpNoCase(langFull) == 0)
 732             {
 733                 break;
 734             }
 735         }
 736     }
 737 #elif defined(__WIN32__)
 738     LCID lcid = GetUserDefaultLCID();
 739     if ( lcid != 0 )
 740     {
 741         wxUint32 lang = PRIMARYLANGID(LANGIDFROMLCID(lcid));
 742         wxUint32 sublang = SUBLANGID(LANGIDFROMLCID(lcid));
 743
 744         for ( i = 0; i < count; i++ )
 745         {
 746             if (ms_languagesDB->Item(i).WinLang == lang &&
 747                 ms_languagesDB->Item(i).WinSublang == sublang)
 748             {
 749                 break;
 750             }
 751         }
 752     }
 753     //else: leave wxlang == wxLANGUAGE_UNKNOWN
 754 #endif // Unix/Win32
 755
 756     if ( i < count )
 757     {
 758         // we did find a matching entry, use it
 759         return ms_languagesDB->Item(i).Language;
 760     }
 761
 762     // no info about this language in the database
 763     return wxLANGUAGE_UNKNOWN;
 764 }
 765
 766 // ----------------------------------------------------------------------------
 767 // encoding stuff
 768 // ----------------------------------------------------------------------------
 769
 770 // this is a bit strange as under Windows we get the encoding name using its
 771 // numeric value and under Unix we do it the other way round, but this just
 772 // reflects the way different systems provide the encoding info
 773
 774 /* static */
 775 wxString wxLocale::GetSystemEncodingName()
 776 {
 777     wxString encname;
 778
 779 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 780     // FIXME: what is the error return value for GetACP()?
 781     UINT codepage = ::GetACP();
 782     encname.Printf(wxS("windows-%u"), codepage);
 783 #elif defined(__WXMAC__)
 784     encname = wxCFStringRef::AsString(
 785                 CFStringGetNameOfEncoding(CFStringGetSystemEncoding())
 786               );
 787 #elif defined(__UNIX_LIKE__)
 788
 789 #if defined(HAVE_LANGINFO_H) && defined(CODESET)
 790     // GNU libc provides current character set this way (this conforms
 791     // to Unix98)
 792     char *oldLocale = strdup(setlocale(LC_CTYPE, NULL));
 793     setlocale(LC_CTYPE, "");
 794     const char *alang = nl_langinfo(CODESET);
 795     setlocale(LC_CTYPE, oldLocale);
 796     free(oldLocale);
 797
 798     if ( alang )
 799     {
 800         encname = wxString::FromAscii( alang );
 801     }
 802     else // nl_langinfo() failed
 803 #endif // HAVE_LANGINFO_H
 804     {
 805         // if we can't get at the character set directly, try to see if it's in
 806         // the environment variables (in most cases this won't work, but I was
 807         // out of ideas)
 808         char *lang = getenv( "LC_ALL");
 809         char *dot = lang ? strchr(lang, '.') : NULL;
 810         if (!dot)
 811         {
 812             lang = getenv( "LC_CTYPE" );
 813             if ( lang )
 814                 dot = strchr(lang, '.' );
 815         }
 816         if (!dot)
 817         {
 818             lang = getenv( "LANG");
 819             if ( lang )
 820                 dot = strchr(lang, '.');
 821         }
 822
 823         if ( dot )
 824         {
 825             encname = wxString::FromAscii( dot+1 );
 826         }
 827     }
 828 #endif // Win32/Unix
 829
 830     return encname;
 831 }
 832
 833 /* static */
 834 wxFontEncoding wxLocale::GetSystemEncoding()
 835 {
 836 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 837     UINT codepage = ::GetACP();
 838
 839     // wxWidgets only knows about CP1250-1257, 874, 932, 936, 949, 950
 840     if ( codepage >= 1250 && codepage <= 1257 )
 841     {
 842         return (wxFontEncoding)(wxFONTENCODING_CP1250 + codepage - 1250);
 843     }
 844
 845     if ( codepage == 874 )
 846     {
 847         return wxFONTENCODING_CP874;
 848     }
 849
 850     if ( codepage == 932 )
 851     {
 852         return wxFONTENCODING_CP932;
 853     }
 854
 855     if ( codepage == 936 )
 856     {
 857         return wxFONTENCODING_CP936;
 858     }
 859
 860     if ( codepage == 949 )
 861     {
 862         return wxFONTENCODING_CP949;
 863     }
 864
 865     if ( codepage == 950 )
 866     {
 867         return wxFONTENCODING_CP950;
 868     }
 869 #elif defined(__WXMAC__)
 870     CFStringEncoding encoding = 0 ;
 871     encoding = CFStringGetSystemEncoding() ;
 872     return wxMacGetFontEncFromSystemEnc( encoding ) ;
 873 #elif defined(__UNIX_LIKE__) && wxUSE_FONTMAP
 874     const wxString encname = GetSystemEncodingName();
 875     if ( !encname.empty() )
 876     {
 877         wxFontEncoding enc = wxFontMapperBase::GetEncodingFromName(encname);
 878
 879         // on some modern Linux systems (RedHat 8) the default system locale
 880         // is UTF8 -- but it isn't supported by wxGTK1 in ANSI build at all so
 881         // don't even try to use it in this case
 882 #if !wxUSE_UNICODE && \
 883         ((defined(__WXGTK__) && !defined(__WXGTK20__)) || defined(__WXMOTIF__))
 884         if ( enc == wxFONTENCODING_UTF8 )
 885         {
 886             // the most similar supported encoding...
 887             enc = wxFONTENCODING_ISO8859_1;
 888         }
 889 #endif // !wxUSE_UNICODE
 890
 891         // GetEncodingFromName() returns wxFONTENCODING_DEFAULT for C locale
 892         // (a.k.a. US-ASCII) which is arguably a bug but keep it like this for
 893         // backwards compatibility and just take care to not return
 894         // wxFONTENCODING_DEFAULT from here as this surely doesn't make sense
 895         if ( enc == wxFONTENCODING_DEFAULT )
 896         {
 897             // we don't have wxFONTENCODING_ASCII, so use the closest one
 898             return wxFONTENCODING_ISO8859_1;
 899         }
 900
 901         if ( enc != wxFONTENCODING_MAX )
 902         {
 903             return enc;
 904         }
 905         //else: return wxFONTENCODING_SYSTEM below
 906     }
 907 #endif // Win32/Unix
 908
 909     return wxFONTENCODING_SYSTEM;
 910 }
 911
 912 /* static */
 913 void wxLocale::AddLanguage(const wxLanguageInfo& info)
 914 {
 915     CreateLanguagesDB();
 916     ms_languagesDB->Add(info);
 917 }
 918
 919 /* static */
 920 const wxLanguageInfo *wxLocale::GetLanguageInfo(int lang)
 921 {
 922     CreateLanguagesDB();
 923
 924     // calling GetLanguageInfo(wxLANGUAGE_DEFAULT) is a natural thing to do, so
 925     // make it work
 926     if ( lang == wxLANGUAGE_DEFAULT )
 927         lang = GetSystemLanguage();
 928
 929     const size_t count = ms_languagesDB->GetCount();
 930     for ( size_t i = 0; i < count; i++ )
 931     {
 932         if ( ms_languagesDB->Item(i).Language == lang )
 933         {
 934             // We need to create a temporary here in order to make this work with BCC in final build mode
 935             wxLanguageInfo *ptr = &ms_languagesDB->Item(i);
 936             return ptr;
 937         }
 938     }
 939
 940     return NULL;
 941 }
 942
 943 /* static */
 944 wxString wxLocale::GetLanguageName(int lang)
 945 {
 946     if ( lang == wxLANGUAGE_DEFAULT || lang == wxLANGUAGE_UNKNOWN )
 947         return wxEmptyString;
 948
 949     const wxLanguageInfo *info = GetLanguageInfo(lang);
 950     if ( !info )
 951         return wxEmptyString;
 952     else
 953         return info->Description;
 954 }
 955
 956 /* static */
 957 wxString wxLocale::GetLanguageCanonicalName(int lang)
 958 {
 959     if ( lang == wxLANGUAGE_DEFAULT || lang == wxLANGUAGE_UNKNOWN )
 960         return wxEmptyString;
 961
 962     const wxLanguageInfo *info = GetLanguageInfo(lang);
 963     if ( !info )
 964         return wxEmptyString;
 965     else
 966         return info->CanonicalName;
 967 }
 968
 969 /* static */
 970 const wxLanguageInfo *wxLocale::FindLanguageInfo(const wxString& locale)
 971 {
 972     CreateLanguagesDB();
 973
 974     const wxLanguageInfo *infoRet = NULL;
 975
 976     const size_t count = ms_languagesDB->GetCount();
 977     for ( size_t i = 0; i < count; i++ )
 978     {
 979         const wxLanguageInfo *info = &ms_languagesDB->Item(i);
 980
 981         if ( wxStricmp(locale, info->CanonicalName) == 0 ||
 982                 wxStricmp(locale, info->Description) == 0 )
 983         {
 984             // exact match, stop searching
 985             infoRet = info;
 986             break;
 987         }
 988
 989         if ( wxStricmp(locale, info->CanonicalName.BeforeFirst(wxS('_'))) == 0 )
 990         {
 991             // a match -- but maybe we'll find an exact one later, so continue
 992             // looking
 993             //
 994             // OTOH, maybe we had already found a language match and in this
 995             // case don't overwrite it because the entry for the default
 996             // country always appears first in ms_languagesDB
 997             if ( !infoRet )
 998                 infoRet = info;
 999         }
1000     }
1001
1002     return infoRet;
1003 }
1004
1005 wxString wxLocale::GetSysName() const
1006 {
1007     return wxSetlocale(LC_ALL, NULL);
1008 }
1009
1010 // clean up
1011 wxLocale::~wxLocale()
1012 {
1013     // Restore old translations object.
1014     // See DoCommonInit() for explanation of why this is needed for backward
1015     // compatibility.
1016     if ( wxTranslations::Get() == &m_translations )
1017     {
1018         if ( m_pOldLocale )
1019             wxTranslations::SetNonOwned(&m_pOldLocale->m_translations);
1020         else
1021             wxTranslations::Set(NULL);
1022     }
1023
1024     // restore old locale pointer
1025     wxSetLocale(m_pOldLocale);
1026
1027     wxSetlocale(LC_ALL, m_pszOldLocale);
1028     free(const_cast<char *>(m_pszOldLocale));
1029 }
1030
1031
1032 // check if the given locale is provided by OS and C run time
1033 /* static */
1034 bool wxLocale::IsAvailable(int lang)
1035 {
1036     const wxLanguageInfo *info = wxLocale::GetLanguageInfo(lang);
1037     if ( !info )
1038     {
1039         // The language is unknown (this normally only happens when we're
1040         // passed wxLANGUAGE_DEFAULT), so we can't support it.
1041         wxASSERT_MSG( lang == wxLANGUAGE_DEFAULT,
1042                       wxS("No info for a valid language?") );
1043         return false;
1044     }
1045
1046 #if defined(__WIN32__)
1047     if ( !info->WinLang )
1048         return false;
1049
1050     if ( !::IsValidLocale(info->GetLCID(), LCID_INSTALLED) )
1051         return false;
1052
1053 #elif defined(__UNIX__)
1054
1055     // Test if setting the locale works, then set it back.
1056     char * const oldLocale = wxStrdupA(setlocale(LC_ALL, NULL));
1057
1058     // Some platforms don't like xx_YY form and require xx only so test for
1059     // it too.
1060     const bool
1061         available = wxSetlocaleTryUTF8(LC_ALL, info->CanonicalName) ||
1062                     wxSetlocaleTryUTF8(LC_ALL, ExtractLang(info->CanonicalName));
1063
1064     // restore the original locale
1065     wxSetlocale(LC_ALL, oldLocale);
1066
1067     free(oldLocale);
1068
1069     if ( !available )
1070         return false;
1071 #endif
1072
1073     return true;
1074 }
1075
1076
1077 bool wxLocale::AddCatalog(const wxString& domain)
1078 {
1079     wxTranslations *t = wxTranslations::Get();
1080     if ( !t )
1081         return false;
1082     return t->AddCatalog(domain);
1083 }
1084
1085 bool wxLocale::AddCatalog(const wxString& domain, wxLanguage msgIdLanguage)
1086 {
1087     wxTranslations *t = wxTranslations::Get();
1088     if ( !t )
1089         return false;
1090     return t->AddCatalog(domain, msgIdLanguage);
1091 }
1092
1093 // add a catalog to our linked list
1094 bool wxLocale::AddCatalog(const wxString& szDomain,
1095                         wxLanguage      msgIdLanguage,
1096                         const wxString& msgIdCharset)
1097 {
1098     wxTranslations *t = wxTranslations::Get();
1099     if ( !t )
1100         return false;
1101 #if wxUSE_UNICODE
1102     wxUnusedVar(msgIdCharset);
1103     return t->AddCatalog(szDomain, msgIdLanguage);
1104 #else
1105     return t->AddCatalog(szDomain, msgIdLanguage, msgIdCharset);
1106 #endif
1107 }
1108
1109 bool wxLocale::IsLoaded(const wxString& domain) const
1110 {
1111     wxTranslations *t = wxTranslations::Get();
1112     if ( !t )
1113         return false;
1114     return t->IsLoaded(domain);
1115 }
1116
1117 wxString wxLocale::GetHeaderValue(const wxString& header,
1118                                   const wxString& domain) const
1119 {
1120     wxTranslations *t = wxTranslations::Get();
1121     if ( !t )
1122         return wxEmptyString;
1123     return t->GetHeaderValue(header, domain);
1124 }
1125
1126 // ----------------------------------------------------------------------------
1127 // accessors for locale-dependent data
1128 // ----------------------------------------------------------------------------
1129
1130 #if defined(__WINDOWS__) || defined(__WXOSX__)
1131
1132 namespace
1133 {
1134
1135 // This function translates from Unicode date formats described at
1136 //
1137 //      http://unicode.org/reports/tr35/tr35-6.html#Date_Format_Patterns
1138 //
1139 // to strftime()-like syntax. This translation is not lossless but we try to do
1140 // our best.
1141
1142 static wxString TranslateFromUnicodeFormat(const wxString& fmt)
1143 {
1144     wxString fmtWX;
1145     fmtWX.reserve(fmt.length());
1146
1147     char chLast = '\0';
1148     size_t lastCount = 0;
1149
1150     const char* formatchars =
1151         "dghHmMsSy"
1152 #ifdef __WINDOWS__
1153         "t"
1154 #else
1155         "EawD"
1156 #endif
1157         ;
1158     for ( wxString::const_iterator p = fmt.begin(); /* end handled inside */; ++p )
1159     {
1160         if ( p != fmt.end() )
1161         {
1162             if ( *p == chLast )
1163             {
1164                 lastCount++;
1165                 continue;
1166             }
1167
1168             const wxUniChar ch = (*p).GetValue();
1169             if ( ch.IsAscii() && strchr(formatchars, ch) )
1170             {
1171                 // these characters come in groups, start counting them
1172                 chLast = ch;
1173                 lastCount = 1;
1174                 continue;
1175             }
1176         }
1177
1178         // interpret any special characters we collected so far
1179         if ( lastCount )
1180         {
1181             switch ( chLast )
1182             {
1183                 case 'd':
1184                     switch ( lastCount )
1185                     {
1186                         case 1: // d
1187                         case 2: // dd
1188                             // these two are the same as we don't distinguish
1189                             // between 1 and 2 digits for days
1190                             fmtWX += "%d";
1191                             break;
1192 #ifdef __WINDOWS__
1193                         case 3: // ddd
1194                             fmtWX += "%a";
1195                             break;
1196
1197                         case 4: // dddd
1198                             fmtWX += "%A";
1199                             break;
1200 #endif
1201                         default:
1202                             wxFAIL_MSG( "too many 'd's" );
1203                     }
1204                     break;
1205 #ifndef __WINDOWS__
1206                 case 'D':
1207                     switch ( lastCount )
1208                     {
1209                         case 1: // D
1210                         case 2: // DD
1211                         case 3: // DDD
1212                             fmtWX += "%j";
1213                             break;
1214
1215                         default:
1216                             wxFAIL_MSG( "wrong number of 'D's" );
1217                     }
1218                     break;
1219                case 'w':
1220                     switch ( lastCount )
1221                     {
1222                         case 1: // w
1223                         case 2: // ww
1224                             fmtWX += "%W";
1225                             break;
1226
1227                         default:
1228                             wxFAIL_MSG( "wrong number of 'w's" );
1229                     }
1230                     break;
1231                 case 'E':
1232                    switch ( lastCount )
1233                     {
1234                         case 1: // E
1235                         case 2: // EE
1236                         case 3: // EEE
1237                             fmtWX += "%a";
1238                             break;
1239                         case 4: // EEEE
1240                             fmtWX += "%A";
1241                             break;
1242                         case 5: // EEEEE
1243                             fmtWX += "%a";
1244                             break;
1245
1246                         default:
1247                             wxFAIL_MSG( "wrong number of 'E's" );
1248                     }
1249                     break;
1250 #endif
1251                 case 'M':
1252                     switch ( lastCount )
1253                     {
1254                         case 1: // M
1255                         case 2: // MM
1256                             // as for 'd' and 'dd' above
1257                             fmtWX += "%m";
1258                             break;
1259
1260                         case 3:
1261                             fmtWX += "%b";
1262                             break;
1263
1264                         case 4:
1265                             fmtWX += "%B";
1266                             break;
1267
1268                         default:
1269                             wxFAIL_MSG( "too many 'M's" );
1270                     }
1271                     break;
1272
1273                 case 'y':
1274                     switch ( lastCount )
1275                     {
1276                         case 1: // y
1277                         case 2: // yy
1278                             fmtWX += "%y";
1279                             break;
1280
1281                         case 4: // yyyy
1282                             fmtWX += "%Y";
1283                             break;
1284
1285                         default:
1286                             wxFAIL_MSG( "wrong number of 'y's" );
1287                     }
1288                     break;
1289
1290                 case 'H':
1291                     switch ( lastCount )
1292                     {
1293                         case 1: // H
1294                         case 2: // HH
1295                             fmtWX += "%H";
1296                             break;
1297
1298                         default:
1299                             wxFAIL_MSG( "wrong number of 'H's" );
1300                     }
1301                     break;
1302
1303                case 'h':
1304                     switch ( lastCount )
1305                     {
1306                         case 1: // h
1307                         case 2: // hh
1308                             fmtWX += "%I";
1309                             break;
1310
1311                         default:
1312                             wxFAIL_MSG( "wrong number of 'h's" );
1313                     }
1314                     break;
1315
1316                case 'm':
1317                     switch ( lastCount )
1318                     {
1319                         case 1: // m
1320                         case 2: // mm
1321                             fmtWX += "%M";
1322                             break;
1323
1324                         default:
1325                             wxFAIL_MSG( "wrong number of 'm's" );
1326                     }
1327                     break;
1328
1329                case 's':
1330                     switch ( lastCount )
1331                     {
1332                         case 1: // s
1333                         case 2: // ss
1334                             fmtWX += "%S";
1335                             break;
1336
1337                         default:
1338                             wxFAIL_MSG( "wrong number of 's's" );
1339                     }
1340                     break;
1341
1342                 case 'g':
1343                     // strftime() doesn't have era string,
1344                     // ignore this format
1345                     wxASSERT_MSG( lastCount <= 2, "too many 'g's" );
1346
1347                     break;
1348 #ifndef __WINDOWS__
1349                 case 'a':
1350                     fmtWX += "%p";
1351                     break;
1352 #endif
1353 #ifdef __WINDOWS__
1354                 case 't':
1355                     switch ( lastCount )
1356                     {
1357                         case 1: // t
1358                         case 2: // tt
1359                             fmtWX += "%p";
1360                             break;
1361
1362                         default:
1363                             wxFAIL_MSG( "too many 't's" );
1364                     }
1365                     break;
1366 #endif
1367                 default:
1368                     wxFAIL_MSG( "unreachable" );
1369             }
1370
1371             chLast = '\0';
1372             lastCount = 0;
1373         }
1374
1375         if ( p == fmt.end() )
1376             break;
1377
1378         // not a special character so must be just a separator, treat as is
1379         if ( *p == wxT('%') )
1380         {
1381             // this one needs to be escaped
1382             fmtWX += wxT('%');
1383         }
1384
1385         fmtWX += *p;
1386     }
1387
1388     return fmtWX;
1389 }
1390
1391 } // anonymous namespace
1392
1393 #endif // __WINDOWS__ || __WXOSX__
1394
1395 #if defined(__WINDOWS__)
1396
1397 namespace
1398 {
1399
1400 LCTYPE GetLCTYPEFormatFromLocalInfo(wxLocaleInfo index)
1401 {
1402     switch ( index )
1403     {
1404         case wxLOCALE_SHORT_DATE_FMT:
1405             return LOCALE_SSHORTDATE;
1406
1407         case wxLOCALE_LONG_DATE_FMT:
1408             return LOCALE_SLONGDATE;
1409
1410         case wxLOCALE_TIME_FMT:
1411             return LOCALE_STIMEFORMAT;
1412
1413         default:
1414             wxFAIL_MSG( "no matching LCTYPE" );
1415     }
1416
1417     return 0;
1418 }
1419
1420 } // anonymous namespace
1421
1422 /* static */
1423 wxString wxLocale::GetInfo(wxLocaleInfo index, wxLocaleCategory cat)
1424 {
1425     const wxLanguageInfo * const
1426         info = wxGetLocale() ? GetLanguageInfo(wxGetLocale()->GetLanguage())
1427                              : NULL;
1428     if ( !info )
1429     {
1430         // wxSetLocale() hadn't been called yet of failed, hence CRT must be
1431         // using "C" locale -- but check it to detect bugs that would happen if
1432         // this were not the case.
1433         wxASSERT_MSG( strcmp(setlocale(LC_ALL, NULL), "C") == 0,
1434                       wxS("You probably called setlocale() directly instead ")
1435                       wxS("of calling wxSetLocale() and now there is a ")
1436                       wxS("mismatch between C/C++ and Windows locale.\n")
1437                       wxS("Things are going to break, use wxSetLocale() to ")
1438                       wxS("avoid this!") );
1439
1440
1441         // Return the hard coded values for C locale. This is really the right
1442         // thing to do as there is no LCID we can use in the code below in this
1443         // case, even LOCALE_INVARIANT is not quite the same as C locale (the
1444         // only difference is that it uses %Y instead of %y in the date format
1445         // but this difference is significant enough).
1446         switch ( index )
1447         {
1448             case wxLOCALE_THOUSANDS_SEP:
1449                 return wxString();
1450
1451             case wxLOCALE_DECIMAL_POINT:
1452                 return ".";
1453
1454             case wxLOCALE_SHORT_DATE_FMT:
1455                 return "%m/%d/%y";
1456
1457             case wxLOCALE_LONG_DATE_FMT:
1458                 return "%A, %B %d, %Y";
1459
1460             case wxLOCALE_TIME_FMT:
1461                 return "%H:%M:%S";
1462
1463             case wxLOCALE_DATE_TIME_FMT:
1464                 return "%m/%d/%y %H:%M:%S";
1465
1466             default:
1467                 wxFAIL_MSG( "unknown wxLocaleInfo" );
1468         }
1469     }
1470
1471     const wxUint32 lcid = info->GetLCID();
1472
1473     wxString str;
1474
1475     wxChar buf[256];
1476     buf[0] = wxT('\0');
1477
1478     switch ( index )
1479     {
1480         case wxLOCALE_THOUSANDS_SEP:
1481             if ( ::GetLocaleInfo(lcid, LOCALE_STHOUSAND, buf, WXSIZEOF(buf)) )
1482                 str = buf;
1483             break;
1484
1485         case wxLOCALE_DECIMAL_POINT:
1486             if ( ::GetLocaleInfo(lcid,
1487                                  cat == wxLOCALE_CAT_MONEY
1488                                      ? LOCALE_SMONDECIMALSEP
1489                                      : LOCALE_SDECIMAL,
1490                                  buf,
1491                                  WXSIZEOF(buf)) )
1492             {
1493                 str = buf;
1494
1495                 // As we get our decimal point separator from Win32 and not the
1496                 // CRT there is a possibility of mismatch between them and this
1497                 // can easily happen if the user code called setlocale()
1498                 // instead of using wxLocale to change the locale. And this can
1499                 // result in very strange bugs elsewhere in the code as the
1500                 // assumptions that formatted strings do use the decimal
1501                 // separator actually fail, so check for it here.
1502                 wxASSERT_MSG
1503                 (
1504                     wxString::Format("%.3f", 1.23).find(str) != wxString::npos,
1505                     "Decimal separator mismatch -- did you use setlocale()?"
1506                     "If so, use wxLocale to change the locale instead."
1507                 );
1508             }
1509             break;
1510
1511         case wxLOCALE_SHORT_DATE_FMT:
1512         case wxLOCALE_LONG_DATE_FMT:
1513         case wxLOCALE_TIME_FMT:
1514             if ( ::GetLocaleInfo(lcid, GetLCTYPEFormatFromLocalInfo(index),
1515                                  buf, WXSIZEOF(buf)) )
1516             {
1517                 return TranslateFromUnicodeFormat(buf);
1518             }
1519             break;
1520
1521         case wxLOCALE_DATE_TIME_FMT:
1522             // there doesn't seem to be any specific setting for this, so just
1523             // combine date and time ones
1524             //
1525             // we use the short date because this is what "%c" uses by default
1526             // ("%#c" uses long date but we have no way to specify the
1527             // alternate representation here)
1528             {
1529                 const wxString datefmt = GetInfo(wxLOCALE_SHORT_DATE_FMT);
1530                 if ( datefmt.empty() )
1531                     break;
1532
1533                 const wxString timefmt = GetInfo(wxLOCALE_TIME_FMT);
1534                 if ( timefmt.empty() )
1535                     break;
1536
1537                 str << datefmt << ' ' << timefmt;
1538             }
1539             break;
1540
1541         default:
1542             wxFAIL_MSG( "unknown wxLocaleInfo" );
1543     }
1544
1545     return str;
1546 }
1547
1548 #elif defined(__WXOSX__)
1549
1550 /* static */
1551 wxString wxLocale::GetInfo(wxLocaleInfo index, wxLocaleCategory WXUNUSED(cat))
1552 {
1553     CFLocaleRef userLocaleRefRaw;
1554     if ( wxGetLocale() )
1555     {
1556         userLocaleRefRaw = CFLocaleCreate
1557                         (
1558                                 kCFAllocatorDefault,
1559                                 wxCFStringRef(wxGetLocale()->GetCanonicalName())
1560                         );
1561     }
1562     else // no current locale, use the default one
1563     {
1564         userLocaleRefRaw = CFLocaleCopyCurrent();
1565     }
1566
1567     wxCFRef<CFLocaleRef> userLocaleRef(userLocaleRefRaw);
1568
1569     CFStringRef cfstr = 0;
1570     switch ( index )
1571     {
1572         case wxLOCALE_THOUSANDS_SEP:
1573             cfstr = (CFStringRef) CFLocaleGetValue(userLocaleRef, kCFLocaleGroupingSeparator);
1574             break;
1575
1576         case wxLOCALE_DECIMAL_POINT:
1577             cfstr = (CFStringRef) CFLocaleGetValue(userLocaleRef, kCFLocaleDecimalSeparator);
1578             break;
1579
1580         case wxLOCALE_SHORT_DATE_FMT:
1581         case wxLOCALE_LONG_DATE_FMT:
1582         case wxLOCALE_DATE_TIME_FMT:
1583         case wxLOCALE_TIME_FMT:
1584             {
1585                 CFDateFormatterStyle dateStyle = kCFDateFormatterNoStyle;
1586                 CFDateFormatterStyle timeStyle = kCFDateFormatterNoStyle;
1587                 switch (index )
1588                 {
1589                     case wxLOCALE_SHORT_DATE_FMT:
1590                         dateStyle = kCFDateFormatterShortStyle;
1591                         break;
1592                     case wxLOCALE_LONG_DATE_FMT:
1593                         dateStyle = kCFDateFormatterFullStyle;
1594                         break;
1595                     case wxLOCALE_DATE_TIME_FMT:
1596                         dateStyle = kCFDateFormatterFullStyle;
1597                         timeStyle = kCFDateFormatterMediumStyle;
1598                         break;
1599                     case wxLOCALE_TIME_FMT:
1600                         timeStyle = kCFDateFormatterMediumStyle;
1601                         break;
1602                     default:
1603                         wxFAIL_MSG( "unexpected time locale" );
1604                         return wxString();
1605                 }
1606                 wxCFRef<CFDateFormatterRef> dateFormatter( CFDateFormatterCreate
1607                     (NULL, userLocaleRef, dateStyle, timeStyle));
1608                 wxCFStringRef cfs = wxCFRetain( CFDateFormatterGetFormat(dateFormatter ));
1609                 wxString format = TranslateFromUnicodeFormat(cfs.AsString());
1610                 // we always want full years
1611                 format.Replace("%y","%Y");
1612                 return format;
1613             }
1614             break;
1615
1616         default:
1617             wxFAIL_MSG( "Unknown locale info" );
1618             return wxString();
1619     }
1620
1621     wxCFStringRef str(wxCFRetain(cfstr));
1622     return str.AsString();
1623 }
1624
1625 #else // !__WINDOWS__ && !__WXOSX__, assume generic POSIX
1626
1627 namespace
1628 {
1629
1630 wxString GetDateFormatFromLangInfo(wxLocaleInfo index)
1631 {
1632 #ifdef HAVE_LANGINFO_H
1633     // array containing parameters for nl_langinfo() indexes by offset of index
1634     // from wxLOCALE_SHORT_DATE_FMT
1635     static const nl_item items[] =
1636     {
1637         D_FMT, D_T_FMT, D_T_FMT, T_FMT,
1638     };
1639
1640     const int nlidx = index - wxLOCALE_SHORT_DATE_FMT;
1641     if ( nlidx < 0 || nlidx >= (int)WXSIZEOF(items) )
1642     {
1643         wxFAIL_MSG( "logic error in GetInfo() code" );
1644         return wxString();
1645     }
1646
1647     const wxString fmt(nl_langinfo(items[nlidx]));
1648
1649     // just return the format returned by nl_langinfo() except for long date
1650     // format which we need to recover from date/time format ourselves (but not
1651     // if we failed completely)
1652     if ( fmt.empty() || index != wxLOCALE_LONG_DATE_FMT )
1653         return fmt;
1654
1655     // this is not 100% precise but the idea is that a typical date/time format
1656     // under POSIX systems is a combination of a long date format with time one
1657     // so we should be able to get just the long date format by removing all
1658     // time-specific format specifiers
1659     static const char *timeFmtSpecs = "HIklMpPrRsSTXzZ";
1660     static const char *timeSep = " :./-";
1661
1662     wxString fmtDateOnly;
1663     const wxString::const_iterator end = fmt.end();
1664     wxString::const_iterator lastSep = end;
1665     for ( wxString::const_iterator p = fmt.begin(); p != end; ++p )
1666     {
1667         if ( strchr(timeSep, *p) )
1668         {
1669             if ( lastSep == end )
1670                 lastSep = p;
1671
1672             // skip it for now, we'll discard it if it's followed by a time
1673             // specifier later or add it to fmtDateOnly if it is not
1674             continue;
1675         }
1676
1677         if ( *p == '%' &&
1678                 (p + 1 != end) && strchr(timeFmtSpecs, p[1]) )
1679         {
1680             // time specified found: skip it and any preceding separators
1681             ++p;
1682             lastSep = end;
1683             continue;
1684         }
1685
1686         if ( lastSep != end )
1687         {
1688             fmtDateOnly += wxString(lastSep, p);
1689             lastSep = end;
1690         }
1691
1692         fmtDateOnly += *p;
1693     }
1694
1695     return fmtDateOnly;
1696 #else // !HAVE_LANGINFO_H
1697     wxUnusedVar(index);
1698
1699     // no fallback, let the application deal with unavailability of
1700     // nl_langinfo() itself as there is no good way for us to do it (well, we
1701     // could try to reverse engineer the format from strftime() output but this
1702     // looks like too much trouble considering the relatively small number of
1703     // systems without nl_langinfo() still in use)
1704     return wxString();
1705 #endif // HAVE_LANGINFO_H/!HAVE_LANGINFO_H
1706 }
1707
1708 } // anonymous namespace
1709
1710 /* static */
1711 wxString wxLocale::GetInfo(wxLocaleInfo index, wxLocaleCategory cat)
1712 {
1713     lconv * const lc = localeconv();
1714     if ( !lc )
1715         return wxString();
1716
1717     switch ( index )
1718     {
1719         case wxLOCALE_THOUSANDS_SEP:
1720             if ( cat == wxLOCALE_CAT_NUMBER )
1721                 return lc->thousands_sep;
1722             else if ( cat == wxLOCALE_CAT_MONEY )
1723                 return lc->mon_thousands_sep;
1724
1725             wxFAIL_MSG( "invalid wxLocaleCategory" );
1726             break;
1727
1728
1729         case wxLOCALE_DECIMAL_POINT:
1730             if ( cat == wxLOCALE_CAT_NUMBER )
1731                 return lc->decimal_point;
1732             else if ( cat == wxLOCALE_CAT_MONEY )
1733                 return lc->mon_decimal_point;
1734
1735             wxFAIL_MSG( "invalid wxLocaleCategory" );
1736             break;
1737
1738         case wxLOCALE_SHORT_DATE_FMT:
1739         case wxLOCALE_LONG_DATE_FMT:
1740         case wxLOCALE_DATE_TIME_FMT:
1741         case wxLOCALE_TIME_FMT:
1742             if ( cat != wxLOCALE_CAT_DATE && cat != wxLOCALE_CAT_DEFAULT )
1743             {
1744                 wxFAIL_MSG( "invalid wxLocaleCategory" );
1745                 break;
1746             }
1747
1748             return GetDateFormatFromLangInfo(index);
1749
1750
1751         default:
1752             wxFAIL_MSG( "unknown wxLocaleInfo value" );
1753     }
1754
1755     return wxString();
1756 }
1757
1758 #endif // platform
1759
1760 // ----------------------------------------------------------------------------
1761 // global functions and variables
1762 // ----------------------------------------------------------------------------
1763
1764 // retrieve/change current locale
1765 // ------------------------------
1766
1767 // the current locale object
1768 static wxLocale *g_pLocale = NULL;
1769
1770 wxLocale *wxGetLocale()
1771 {
1772     return g_pLocale;
1773 }
1774
1775 wxLocale *wxSetLocale(wxLocale *pLocale)
1776 {
1777     wxLocale *pOld = g_pLocale;
1778     g_pLocale = pLocale;
1779     return pOld;
1780 }
1781
1782
1783
1784 // ----------------------------------------------------------------------------
1785 // wxLocale module (for lazy destruction of languagesDB)
1786 // ----------------------------------------------------------------------------
1787
1788 class wxLocaleModule: public wxModule
1789 {
1790     DECLARE_DYNAMIC_CLASS(wxLocaleModule)
1791     public:
1792         wxLocaleModule() {}
1793
1794         bool OnInit()
1795         {
1796             return true;
1797         }
1798
1799         void OnExit()
1800         {
1801             wxLocale::DestroyLanguagesDB();
1802         }
1803 };
1804
1805 IMPLEMENT_DYNAMIC_CLASS(wxLocaleModule, wxModule)
1806
1807 #endif // wxUSE_INTL