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 __WXMSW__
 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 // __WXMSW__
 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     // default is just empty string, this resolves to the default system
 785     // encoding later
 786 #elif defined(__UNIX_LIKE__)
 787
 788 #if defined(HAVE_LANGINFO_H) && defined(CODESET)
 789     // GNU libc provides current character set this way (this conforms
 790     // to Unix98)
 791     char *oldLocale = strdup(setlocale(LC_CTYPE, NULL));
 792     setlocale(LC_CTYPE, "");
 793     const char *alang = nl_langinfo(CODESET);
 794     setlocale(LC_CTYPE, oldLocale);
 795     free(oldLocale);
 796
 797     if ( alang )
 798     {
 799         encname = wxString::FromAscii( alang );
 800     }
 801     else // nl_langinfo() failed
 802 #endif // HAVE_LANGINFO_H
 803     {
 804         // if we can't get at the character set directly, try to see if it's in
 805         // the environment variables (in most cases this won't work, but I was
 806         // out of ideas)
 807         char *lang = getenv( "LC_ALL");
 808         char *dot = lang ? strchr(lang, '.') : NULL;
 809         if (!dot)
 810         {
 811             lang = getenv( "LC_CTYPE" );
 812             if ( lang )
 813                 dot = strchr(lang, '.' );
 814         }
 815         if (!dot)
 816         {
 817             lang = getenv( "LANG");
 818             if ( lang )
 819                 dot = strchr(lang, '.');
 820         }
 821
 822         if ( dot )
 823         {
 824             encname = wxString::FromAscii( dot+1 );
 825         }
 826     }
 827 #endif // Win32/Unix
 828
 829     return encname;
 830 }
 831
 832 /* static */
 833 wxFontEncoding wxLocale::GetSystemEncoding()
 834 {
 835 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 836     UINT codepage = ::GetACP();
 837
 838     // wxWidgets only knows about CP1250-1257, 874, 932, 936, 949, 950
 839     if ( codepage >= 1250 && codepage <= 1257 )
 840     {
 841         return (wxFontEncoding)(wxFONTENCODING_CP1250 + codepage - 1250);
 842     }
 843
 844     if ( codepage == 874 )
 845     {
 846         return wxFONTENCODING_CP874;
 847     }
 848
 849     if ( codepage == 932 )
 850     {
 851         return wxFONTENCODING_CP932;
 852     }
 853
 854     if ( codepage == 936 )
 855     {
 856         return wxFONTENCODING_CP936;
 857     }
 858
 859     if ( codepage == 949 )
 860     {
 861         return wxFONTENCODING_CP949;
 862     }
 863
 864     if ( codepage == 950 )
 865     {
 866         return wxFONTENCODING_CP950;
 867     }
 868 #elif defined(__WXMAC__)
 869     CFStringEncoding encoding = 0 ;
 870     encoding = CFStringGetSystemEncoding() ;
 871     return wxMacGetFontEncFromSystemEnc( encoding ) ;
 872 #elif defined(__UNIX_LIKE__) && wxUSE_FONTMAP
 873     const wxString encname = GetSystemEncodingName();
 874     if ( !encname.empty() )
 875     {
 876         wxFontEncoding enc = wxFontMapperBase::GetEncodingFromName(encname);
 877
 878         // on some modern Linux systems (RedHat 8) the default system locale
 879         // is UTF8 -- but it isn't supported by wxGTK1 in ANSI build at all so
 880         // don't even try to use it in this case
 881 #if !wxUSE_UNICODE && \
 882         ((defined(__WXGTK__) && !defined(__WXGTK20__)) || defined(__WXMOTIF__))
 883         if ( enc == wxFONTENCODING_UTF8 )
 884         {
 885             // the most similar supported encoding...
 886             enc = wxFONTENCODING_ISO8859_1;
 887         }
 888 #endif // !wxUSE_UNICODE
 889
 890         // GetEncodingFromName() returns wxFONTENCODING_DEFAULT for C locale
 891         // (a.k.a. US-ASCII) which is arguably a bug but keep it like this for
 892         // backwards compatibility and just take care to not return
 893         // wxFONTENCODING_DEFAULT from here as this surely doesn't make sense
 894         if ( enc == wxFONTENCODING_DEFAULT )
 895         {
 896             // we don't have wxFONTENCODING_ASCII, so use the closest one
 897             return wxFONTENCODING_ISO8859_1;
 898         }
 899
 900         if ( enc != wxFONTENCODING_MAX )
 901         {
 902             return enc;
 903         }
 904         //else: return wxFONTENCODING_SYSTEM below
 905     }
 906 #endif // Win32/Unix
 907
 908     return wxFONTENCODING_SYSTEM;
 909 }
 910
 911 /* static */
 912 void wxLocale::AddLanguage(const wxLanguageInfo& info)
 913 {
 914     CreateLanguagesDB();
 915     ms_languagesDB->Add(info);
 916 }
 917
 918 /* static */
 919 const wxLanguageInfo *wxLocale::GetLanguageInfo(int lang)
 920 {
 921     CreateLanguagesDB();
 922
 923     // calling GetLanguageInfo(wxLANGUAGE_DEFAULT) is a natural thing to do, so
 924     // make it work
 925     if ( lang == wxLANGUAGE_DEFAULT )
 926         lang = GetSystemLanguage();
 927
 928     const size_t count = ms_languagesDB->GetCount();
 929     for ( size_t i = 0; i < count; i++ )
 930     {
 931         if ( ms_languagesDB->Item(i).Language == lang )
 932         {
 933             // We need to create a temporary here in order to make this work with BCC in final build mode
 934             wxLanguageInfo *ptr = &ms_languagesDB->Item(i);
 935             return ptr;
 936         }
 937     }
 938
 939     return NULL;
 940 }
 941
 942 /* static */
 943 wxString wxLocale::GetLanguageName(int lang)
 944 {
 945     if ( lang == wxLANGUAGE_DEFAULT || lang == wxLANGUAGE_UNKNOWN )
 946         return wxEmptyString;
 947
 948     const wxLanguageInfo *info = GetLanguageInfo(lang);
 949     if ( !info )
 950         return wxEmptyString;
 951     else
 952         return info->Description;
 953 }
 954
 955 /* static */
 956 wxString wxLocale::GetLanguageCanonicalName(int lang)
 957 {
 958     if ( lang == wxLANGUAGE_DEFAULT || lang == wxLANGUAGE_UNKNOWN )
 959         return wxEmptyString;
 960
 961     const wxLanguageInfo *info = GetLanguageInfo(lang);
 962     if ( !info )
 963         return wxEmptyString;
 964     else
 965         return info->CanonicalName;
 966 }
 967
 968 /* static */
 969 const wxLanguageInfo *wxLocale::FindLanguageInfo(const wxString& locale)
 970 {
 971     CreateLanguagesDB();
 972
 973     const wxLanguageInfo *infoRet = NULL;
 974
 975     const size_t count = ms_languagesDB->GetCount();
 976     for ( size_t i = 0; i < count; i++ )
 977     {
 978         const wxLanguageInfo *info = &ms_languagesDB->Item(i);
 979
 980         if ( wxStricmp(locale, info->CanonicalName) == 0 ||
 981                 wxStricmp(locale, info->Description) == 0 )
 982         {
 983             // exact match, stop searching
 984             infoRet = info;
 985             break;
 986         }
 987
 988         if ( wxStricmp(locale, info->CanonicalName.BeforeFirst(wxS('_'))) == 0 )
 989         {
 990             // a match -- but maybe we'll find an exact one later, so continue
 991             // looking
 992             //
 993             // OTOH, maybe we had already found a language match and in this
 994             // case don't overwrite it because the entry for the default
 995             // country always appears first in ms_languagesDB
 996             if ( !infoRet )
 997                 infoRet = info;
 998         }
 999     }
1000
1001     return infoRet;
1002 }
1003
1004 wxString wxLocale::GetSysName() const
1005 {
1006     return wxSetlocale(LC_ALL, NULL);
1007 }
1008
1009 // clean up
1010 wxLocale::~wxLocale()
1011 {
1012     // Restore old translations object.
1013     // See DoCommonInit() for explanation of why this is needed for backward
1014     // compatibility.
1015     if ( wxTranslations::Get() == &m_translations )
1016     {
1017         if ( m_pOldLocale )
1018             wxTranslations::SetNonOwned(&m_pOldLocale->m_translations);
1019         else
1020             wxTranslations::Set(NULL);
1021     }
1022
1023     // restore old locale pointer
1024     wxSetLocale(m_pOldLocale);
1025
1026     wxSetlocale(LC_ALL, m_pszOldLocale);
1027     free(const_cast<char *>(m_pszOldLocale));
1028 }
1029
1030
1031 // check if the given locale is provided by OS and C run time
1032 /* static */
1033 bool wxLocale::IsAvailable(int lang)
1034 {
1035     const wxLanguageInfo *info = wxLocale::GetLanguageInfo(lang);
1036     wxCHECK_MSG( info, false, wxS("invalid language") );
1037
1038 #if defined(__WIN32__)
1039     if ( !info->WinLang )
1040         return false;
1041
1042     if ( !::IsValidLocale(info->GetLCID(), LCID_INSTALLED) )
1043         return false;
1044
1045 #elif defined(__UNIX__)
1046
1047     // Test if setting the locale works, then set it back.
1048     char * const oldLocale = wxStrdupA(setlocale(LC_ALL, NULL));
1049
1050     // Some platforms don't like xx_YY form and require xx only so test for
1051     // it too.
1052     const bool
1053         available = wxSetlocaleTryUTF8(LC_ALL, info->CanonicalName) ||
1054                     wxSetlocaleTryUTF8(LC_ALL, ExtractLang(info->CanonicalName));
1055
1056     // restore the original locale
1057     wxSetlocale(LC_ALL, oldLocale);
1058
1059     free(oldLocale);
1060
1061     if ( !available )
1062         return false;
1063 #endif
1064
1065     return true;
1066 }
1067
1068
1069 bool wxLocale::AddCatalog(const wxString& domain)
1070 {
1071     wxTranslations *t = wxTranslations::Get();
1072     if ( !t )
1073         return false;
1074     return t->AddCatalog(domain);
1075 }
1076
1077 bool wxLocale::AddCatalog(const wxString& domain, wxLanguage msgIdLanguage)
1078 {
1079     wxTranslations *t = wxTranslations::Get();
1080     if ( !t )
1081         return false;
1082     return t->AddCatalog(domain, msgIdLanguage);
1083 }
1084
1085 // add a catalog to our linked list
1086 bool wxLocale::AddCatalog(const wxString& szDomain,
1087                         wxLanguage      msgIdLanguage,
1088                         const wxString& msgIdCharset)
1089 {
1090     wxTranslations *t = wxTranslations::Get();
1091     if ( !t )
1092         return false;
1093 #if wxUSE_UNICODE
1094     wxUnusedVar(msgIdCharset);
1095     return t->AddCatalog(szDomain, msgIdLanguage);
1096 #else
1097     return t->AddCatalog(szDomain, msgIdLanguage, msgIdCharset);
1098 #endif
1099 }
1100
1101 bool wxLocale::IsLoaded(const wxString& domain) const
1102 {
1103     wxTranslations *t = wxTranslations::Get();
1104     if ( !t )
1105         return false;
1106     return t->IsLoaded(domain);
1107 }
1108
1109 wxString wxLocale::GetHeaderValue(const wxString& header,
1110                                   const wxString& domain) const
1111 {
1112     wxTranslations *t = wxTranslations::Get();
1113     if ( !t )
1114         return wxEmptyString;
1115     return t->GetHeaderValue(header, domain);
1116 }
1117
1118 // ----------------------------------------------------------------------------
1119 // accessors for locale-dependent data
1120 // ----------------------------------------------------------------------------
1121
1122 #if defined(__WXMSW__) || defined(__WXOSX__)
1123
1124 namespace
1125 {
1126
1127 // This function translates from Unicode date formats described at
1128 //
1129 //      http://unicode.org/reports/tr35/tr35-6.html#Date_Format_Patterns
1130 //
1131 // to strftime()-like syntax. This translation is not lossless but we try to do
1132 // our best.
1133
1134 static wxString TranslateFromUnicodeFormat(const wxString& fmt)
1135 {
1136     wxString fmtWX;
1137     fmtWX.reserve(fmt.length());
1138
1139     char chLast = '\0';
1140     size_t lastCount = 0;
1141
1142     const char* formatchars =
1143         "dghHmMsSy"
1144 #ifdef __WXMSW__
1145         "t"
1146 #else
1147         "EawD"
1148 #endif
1149         ;
1150     for ( wxString::const_iterator p = fmt.begin(); /* end handled inside */; ++p )
1151     {
1152         if ( p != fmt.end() )
1153         {
1154             if ( *p == chLast )
1155             {
1156                 lastCount++;
1157                 continue;
1158             }
1159
1160             const wxUniChar ch = (*p).GetValue();
1161             if ( ch.IsAscii() && strchr(formatchars, ch) )
1162             {
1163                 // these characters come in groups, start counting them
1164                 chLast = ch;
1165                 lastCount = 1;
1166                 continue;
1167             }
1168         }
1169
1170         // interpret any special characters we collected so far
1171         if ( lastCount )
1172         {
1173             switch ( chLast )
1174             {
1175                 case 'd':
1176                     switch ( lastCount )
1177                     {
1178                         case 1: // d
1179                         case 2: // dd
1180                             // these two are the same as we don't distinguish
1181                             // between 1 and 2 digits for days
1182                             fmtWX += "%d";
1183                             break;
1184 #ifdef __WXMSW__
1185                         case 3: // ddd
1186                             fmtWX += "%a";
1187                             break;
1188
1189                         case 4: // dddd
1190                             fmtWX += "%A";
1191                             break;
1192 #endif
1193                         default:
1194                             wxFAIL_MSG( "too many 'd's" );
1195                     }
1196                     break;
1197 #ifndef __WXMSW__
1198                 case 'D':
1199                     switch ( lastCount )
1200                     {
1201                         case 1: // D
1202                         case 2: // DD
1203                         case 3: // DDD
1204                             fmtWX += "%j";
1205                             break;
1206
1207                         default:
1208                             wxFAIL_MSG( "wrong number of 'D's" );
1209                     }
1210                     break;
1211                case 'w':
1212                     switch ( lastCount )
1213                     {
1214                         case 1: // w
1215                         case 2: // ww
1216                             fmtWX += "%W";
1217                             break;
1218
1219                         default:
1220                             wxFAIL_MSG( "wrong number of 'w's" );
1221                     }
1222                     break;
1223                 case 'E':
1224                    switch ( lastCount )
1225                     {
1226                         case 1: // E
1227                         case 2: // EE
1228                         case 3: // EEE
1229                             fmtWX += "%a";
1230                             break;
1231                         case 4: // EEEE
1232                             fmtWX += "%A";
1233                             break;
1234                         case 5: // EEEEE
1235                             fmtWX += "%a";
1236                             break;
1237
1238                         default:
1239                             wxFAIL_MSG( "wrong number of 'E's" );
1240                     }
1241                     break;
1242 #endif
1243                 case 'M':
1244                     switch ( lastCount )
1245                     {
1246                         case 1: // M
1247                         case 2: // MM
1248                             // as for 'd' and 'dd' above
1249                             fmtWX += "%m";
1250                             break;
1251
1252                         case 3:
1253                             fmtWX += "%b";
1254                             break;
1255
1256                         case 4:
1257                             fmtWX += "%B";
1258                             break;
1259
1260                         default:
1261                             wxFAIL_MSG( "too many 'M's" );
1262                     }
1263                     break;
1264
1265                 case 'y':
1266                     switch ( lastCount )
1267                     {
1268                         case 1: // y
1269                         case 2: // yy
1270                             fmtWX += "%y";
1271                             break;
1272
1273                         case 4: // yyyy
1274                             fmtWX += "%Y";
1275                             break;
1276
1277                         default:
1278                             wxFAIL_MSG( "wrong number of 'y's" );
1279                     }
1280                     break;
1281
1282                 case 'H':
1283                     switch ( lastCount )
1284                     {
1285                         case 1: // H
1286                         case 2: // HH
1287                             fmtWX += "%H";
1288                             break;
1289
1290                         default:
1291                             wxFAIL_MSG( "wrong number of 'H's" );
1292                     }
1293                     break;
1294
1295                case 'h':
1296                     switch ( lastCount )
1297                     {
1298                         case 1: // h
1299                         case 2: // hh
1300                             fmtWX += "%I";
1301                             break;
1302
1303                         default:
1304                             wxFAIL_MSG( "wrong number of 'h's" );
1305                     }
1306                     break;
1307
1308                case 'm':
1309                     switch ( lastCount )
1310                     {
1311                         case 1: // m
1312                         case 2: // mm
1313                             fmtWX += "%M";
1314                             break;
1315
1316                         default:
1317                             wxFAIL_MSG( "wrong number of 'm's" );
1318                     }
1319                     break;
1320
1321                case 's':
1322                     switch ( lastCount )
1323                     {
1324                         case 1: // s
1325                         case 2: // ss
1326                             fmtWX += "%S";
1327                             break;
1328
1329                         default:
1330                             wxFAIL_MSG( "wrong number of 's's" );
1331                     }
1332                     break;
1333
1334                 case 'g':
1335                     // strftime() doesn't have era string,
1336                     // ignore this format
1337                     wxASSERT_MSG( lastCount <= 2, "too many 'g's" );
1338
1339                     break;
1340 #ifndef __WXMSW__
1341                 case 'a':
1342                     fmtWX += "%p";
1343                     break;
1344 #endif
1345 #ifdef __WXMSW__
1346                 case 't':
1347                     switch ( lastCount )
1348                     {
1349                         case 1: // t
1350                         case 2: // tt
1351                             fmtWX += "%p";
1352                             break;
1353
1354                         default:
1355                             wxFAIL_MSG( "too many 't's" );
1356                     }
1357                     break;
1358 #endif
1359                 default:
1360                     wxFAIL_MSG( "unreachable" );
1361             }
1362
1363             chLast = '\0';
1364             lastCount = 0;
1365         }
1366
1367         if ( p == fmt.end() )
1368             break;
1369
1370         // not a special character so must be just a separator, treat as is
1371         if ( *p == wxT('%') )
1372         {
1373             // this one needs to be escaped
1374             fmtWX += wxT('%');
1375         }
1376
1377         fmtWX += *p;
1378     }
1379
1380     return fmtWX;
1381 }
1382
1383 } // anonymous namespace
1384
1385 #endif // __WXMSW__ || __WXOSX__
1386
1387 #if defined(__WXMSW__)
1388
1389 namespace
1390 {
1391
1392 LCTYPE GetLCTYPEFormatFromLocalInfo(wxLocaleInfo index)
1393 {
1394     switch ( index )
1395     {
1396         case wxLOCALE_SHORT_DATE_FMT:
1397             return LOCALE_SSHORTDATE;
1398
1399         case wxLOCALE_LONG_DATE_FMT:
1400             return LOCALE_SLONGDATE;
1401
1402         case wxLOCALE_TIME_FMT:
1403             return LOCALE_STIMEFORMAT;
1404
1405         default:
1406             wxFAIL_MSG( "no matching LCTYPE" );
1407     }
1408
1409     return 0;
1410 }
1411
1412 } // anonymous namespace
1413
1414 /* static */
1415 wxString wxLocale::GetInfo(wxLocaleInfo index, wxLocaleCategory cat)
1416 {
1417     wxUint32 lcid = LOCALE_USER_DEFAULT;
1418     if ( wxGetLocale() )
1419     {
1420         const wxLanguageInfo * const
1421             info = GetLanguageInfo(wxGetLocale()->GetLanguage());
1422         if ( info )
1423             lcid = info->GetLCID();
1424     }
1425
1426     wxString str;
1427
1428     wxChar buf[256];
1429     buf[0] = wxT('\0');
1430
1431     switch ( index )
1432     {
1433         case wxLOCALE_THOUSANDS_SEP:
1434             if ( ::GetLocaleInfo(lcid, LOCALE_STHOUSAND, buf, WXSIZEOF(buf)) )
1435                 str = buf;
1436             break;
1437
1438         case wxLOCALE_DECIMAL_POINT:
1439             if ( ::GetLocaleInfo(lcid,
1440                                  cat == wxLOCALE_CAT_MONEY
1441                                      ? LOCALE_SMONDECIMALSEP
1442                                      : LOCALE_SDECIMAL,
1443                                  buf,
1444                                  WXSIZEOF(buf)) )
1445             {
1446                 str = buf;
1447
1448                 // As we get our decimal point separator from Win32 and not the
1449                 // CRT there is a possibility of mismatch between them and this
1450                 // can easily happen if the user code called setlocale()
1451                 // instead of using wxLocale to change the locale. And this can
1452                 // result in very strange bugs elsewhere in the code as the
1453                 // assumptions that formatted strings do use the decimal
1454                 // separator actually fail, so check for it here.
1455                 wxASSERT_MSG
1456                 (
1457                     wxString::Format("%.3f", 1.23).find(str) != wxString::npos,
1458                     "Decimal separator mismatch -- did you use setlocale()?"
1459                     "If so, use wxLocale to change the locale instead."
1460                 );
1461             }
1462             break;
1463
1464         case wxLOCALE_SHORT_DATE_FMT:
1465         case wxLOCALE_LONG_DATE_FMT:
1466         case wxLOCALE_TIME_FMT:
1467             if ( ::GetLocaleInfo(lcid, GetLCTYPEFormatFromLocalInfo(index),
1468                                  buf, WXSIZEOF(buf)) )
1469             {
1470                 return TranslateFromUnicodeFormat(buf);
1471             }
1472             break;
1473
1474         case wxLOCALE_DATE_TIME_FMT:
1475             // there doesn't seem to be any specific setting for this, so just
1476             // combine date and time ones
1477             //
1478             // we use the short date because this is what "%c" uses by default
1479             // ("%#c" uses long date but we have no way to specify the
1480             // alternate representation here)
1481             {
1482                 const wxString datefmt = GetInfo(wxLOCALE_SHORT_DATE_FMT);
1483                 if ( datefmt.empty() )
1484                     break;
1485
1486                 const wxString timefmt = GetInfo(wxLOCALE_TIME_FMT);
1487                 if ( timefmt.empty() )
1488                     break;
1489
1490                 str << datefmt << ' ' << timefmt;
1491             }
1492             break;
1493
1494         default:
1495             wxFAIL_MSG( "unknown wxLocaleInfo" );
1496     }
1497
1498     return str;
1499 }
1500
1501 #elif defined(__WXOSX__)
1502
1503 /* static */
1504 wxString wxLocale::GetInfo(wxLocaleInfo index, wxLocaleCategory WXUNUSED(cat))
1505 {
1506     CFLocaleRef userLocaleRefRaw;
1507     if ( wxGetLocale() )
1508     {
1509         userLocaleRefRaw = CFLocaleCreate
1510                         (
1511                                 kCFAllocatorDefault,
1512                                 wxCFStringRef(wxGetLocale()->GetCanonicalName())
1513                         );
1514     }
1515     else // no current locale, use the default one
1516     {
1517         userLocaleRefRaw = CFLocaleCopyCurrent();
1518     }
1519
1520     wxCFRef<CFLocaleRef> userLocaleRef(userLocaleRefRaw);
1521
1522     CFStringRef cfstr = 0;
1523     switch ( index )
1524     {
1525         case wxLOCALE_THOUSANDS_SEP:
1526             cfstr = (CFStringRef) CFLocaleGetValue(userLocaleRef, kCFLocaleGroupingSeparator);
1527             break;
1528
1529         case wxLOCALE_DECIMAL_POINT:
1530             cfstr = (CFStringRef) CFLocaleGetValue(userLocaleRef, kCFLocaleDecimalSeparator);
1531             break;
1532
1533         case wxLOCALE_SHORT_DATE_FMT:
1534         case wxLOCALE_LONG_DATE_FMT:
1535         case wxLOCALE_DATE_TIME_FMT:
1536         case wxLOCALE_TIME_FMT:
1537             {
1538                 CFDateFormatterStyle dateStyle = kCFDateFormatterNoStyle;
1539                 CFDateFormatterStyle timeStyle = kCFDateFormatterNoStyle;
1540                 switch (index )
1541                 {
1542                     case wxLOCALE_SHORT_DATE_FMT:
1543                         dateStyle = kCFDateFormatterShortStyle;
1544                         break;
1545                     case wxLOCALE_LONG_DATE_FMT:
1546                         dateStyle = kCFDateFormatterFullStyle;
1547                         break;
1548                     case wxLOCALE_DATE_TIME_FMT:
1549                         dateStyle = kCFDateFormatterFullStyle;
1550                         timeStyle = kCFDateFormatterMediumStyle;
1551                         break;
1552                     case wxLOCALE_TIME_FMT:
1553                         timeStyle = kCFDateFormatterMediumStyle;
1554                         break;
1555                     default:
1556                         wxFAIL_MSG( "unexpected time locale" );
1557                         return wxString();
1558                 }
1559                 wxCFRef<CFDateFormatterRef> dateFormatter( CFDateFormatterCreate
1560                     (NULL, userLocaleRef, dateStyle, timeStyle));
1561                 wxCFStringRef cfs = wxCFRetain( CFDateFormatterGetFormat(dateFormatter ));
1562                 wxString format = TranslateFromUnicodeFormat(cfs.AsString());
1563                 // we always want full years
1564                 format.Replace("%y","%Y");
1565                 return format;
1566             }
1567             break;
1568
1569         default:
1570             wxFAIL_MSG( "Unknown locale info" );
1571             return wxString();
1572     }
1573
1574     wxCFStringRef str(wxCFRetain(cfstr));
1575     return str.AsString();
1576 }
1577
1578 #else // !__WXMSW__ && !__WXOSX__, assume generic POSIX
1579
1580 namespace
1581 {
1582
1583 wxString GetDateFormatFromLangInfo(wxLocaleInfo index)
1584 {
1585 #ifdef HAVE_LANGINFO_H
1586     // array containing parameters for nl_langinfo() indexes by offset of index
1587     // from wxLOCALE_SHORT_DATE_FMT
1588     static const nl_item items[] =
1589     {
1590         D_FMT, D_T_FMT, D_T_FMT, T_FMT,
1591     };
1592
1593     const int nlidx = index - wxLOCALE_SHORT_DATE_FMT;
1594     if ( nlidx < 0 || nlidx >= (int)WXSIZEOF(items) )
1595     {
1596         wxFAIL_MSG( "logic error in GetInfo() code" );
1597         return wxString();
1598     }
1599
1600     const wxString fmt(nl_langinfo(items[nlidx]));
1601
1602     // just return the format returned by nl_langinfo() except for long date
1603     // format which we need to recover from date/time format ourselves (but not
1604     // if we failed completely)
1605     if ( fmt.empty() || index != wxLOCALE_LONG_DATE_FMT )
1606         return fmt;
1607
1608     // this is not 100% precise but the idea is that a typical date/time format
1609     // under POSIX systems is a combination of a long date format with time one
1610     // so we should be able to get just the long date format by removing all
1611     // time-specific format specifiers
1612     static const char *timeFmtSpecs = "HIklMpPrRsSTXzZ";
1613     static const char *timeSep = " :./-";
1614
1615     wxString fmtDateOnly;
1616     const wxString::const_iterator end = fmt.end();
1617     wxString::const_iterator lastSep = end;
1618     for ( wxString::const_iterator p = fmt.begin(); p != end; ++p )
1619     {
1620         if ( strchr(timeSep, *p) )
1621         {
1622             if ( lastSep == end )
1623                 lastSep = p;
1624
1625             // skip it for now, we'll discard it if it's followed by a time
1626             // specifier later or add it to fmtDateOnly if it is not
1627             continue;
1628         }
1629
1630         if ( *p == '%' &&
1631                 (p + 1 != end) && strchr(timeFmtSpecs, p[1]) )
1632         {
1633             // time specified found: skip it and any preceding separators
1634             ++p;
1635             lastSep = end;
1636             continue;
1637         }
1638
1639         if ( lastSep != end )
1640         {
1641             fmtDateOnly += wxString(lastSep, p);
1642             lastSep = end;
1643         }
1644
1645         fmtDateOnly += *p;
1646     }
1647
1648     return fmtDateOnly;
1649 #else // !HAVE_LANGINFO_H
1650     wxUnusedVar(index);
1651
1652     // no fallback, let the application deal with unavailability of
1653     // nl_langinfo() itself as there is no good way for us to do it (well, we
1654     // could try to reverse engineer the format from strftime() output but this
1655     // looks like too much trouble considering the relatively small number of
1656     // systems without nl_langinfo() still in use)
1657     return wxString();
1658 #endif // HAVE_LANGINFO_H/!HAVE_LANGINFO_H
1659 }
1660
1661 } // anonymous namespace
1662
1663 /* static */
1664 wxString wxLocale::GetInfo(wxLocaleInfo index, wxLocaleCategory cat)
1665 {
1666     lconv * const lc = localeconv();
1667     if ( !lc )
1668         return wxString();
1669
1670     switch ( index )
1671     {
1672         case wxLOCALE_THOUSANDS_SEP:
1673             if ( cat == wxLOCALE_CAT_NUMBER )
1674                 return lc->thousands_sep;
1675             else if ( cat == wxLOCALE_CAT_MONEY )
1676                 return lc->mon_thousands_sep;
1677
1678             wxFAIL_MSG( "invalid wxLocaleCategory" );
1679             break;
1680
1681
1682         case wxLOCALE_DECIMAL_POINT:
1683             if ( cat == wxLOCALE_CAT_NUMBER )
1684                 return lc->decimal_point;
1685             else if ( cat == wxLOCALE_CAT_MONEY )
1686                 return lc->mon_decimal_point;
1687
1688             wxFAIL_MSG( "invalid wxLocaleCategory" );
1689             break;
1690
1691         case wxLOCALE_SHORT_DATE_FMT:
1692         case wxLOCALE_LONG_DATE_FMT:
1693         case wxLOCALE_DATE_TIME_FMT:
1694         case wxLOCALE_TIME_FMT:
1695             if ( cat != wxLOCALE_CAT_DATE && cat != wxLOCALE_CAT_DEFAULT )
1696             {
1697                 wxFAIL_MSG( "invalid wxLocaleCategory" );
1698                 break;
1699             }
1700
1701             return GetDateFormatFromLangInfo(index);
1702
1703
1704         default:
1705             wxFAIL_MSG( "unknown wxLocaleInfo value" );
1706     }
1707
1708     return wxString();
1709 }
1710
1711 #endif // platform
1712
1713 // ----------------------------------------------------------------------------
1714 // global functions and variables
1715 // ----------------------------------------------------------------------------
1716
1717 // retrieve/change current locale
1718 // ------------------------------
1719
1720 // the current locale object
1721 static wxLocale *g_pLocale = NULL;
1722
1723 wxLocale *wxGetLocale()
1724 {
1725     return g_pLocale;
1726 }
1727
1728 wxLocale *wxSetLocale(wxLocale *pLocale)
1729 {
1730     wxLocale *pOld = g_pLocale;
1731     g_pLocale = pLocale;
1732     return pOld;
1733 }
1734
1735
1736
1737 // ----------------------------------------------------------------------------
1738 // wxLocale module (for lazy destruction of languagesDB)
1739 // ----------------------------------------------------------------------------
1740
1741 class wxLocaleModule: public wxModule
1742 {
1743     DECLARE_DYNAMIC_CLASS(wxLocaleModule)
1744     public:
1745         wxLocaleModule() {}
1746
1747         bool OnInit()
1748         {
1749             return true;
1750         }
1751
1752         void OnExit()
1753         {
1754             wxLocale::DestroyLanguagesDB();
1755         }
1756 };
1757
1758 IMPLEMENT_DYNAMIC_CLASS(wxLocaleModule, wxModule)
1759
1760 #endif // wxUSE_INTL