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     // 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     if ( !info )
1037     {
1038         // The language is unknown (this normally only happens when we're
1039         // passed wxLANGUAGE_DEFAULT), so we can't support it.
1040         wxASSERT_MSG( lang == wxLANGUAGE_DEFAULT,
1041                       wxS("No info for a valid language?") );
1042         return false;
1043     }
1044
1045 #if defined(__WIN32__)
1046     if ( !info->WinLang )
1047         return false;
1048
1049     if ( !::IsValidLocale(info->GetLCID(), LCID_INSTALLED) )
1050         return false;
1051
1052 #elif defined(__UNIX__)
1053
1054     // Test if setting the locale works, then set it back.
1055     char * const oldLocale = wxStrdupA(setlocale(LC_ALL, NULL));
1056
1057     // Some platforms don't like xx_YY form and require xx only so test for
1058     // it too.
1059     const bool
1060         available = wxSetlocaleTryUTF8(LC_ALL, info->CanonicalName) ||
1061                     wxSetlocaleTryUTF8(LC_ALL, ExtractLang(info->CanonicalName));
1062
1063     // restore the original locale
1064     wxSetlocale(LC_ALL, oldLocale);
1065
1066     free(oldLocale);
1067
1068     if ( !available )
1069         return false;
1070 #endif
1071
1072     return true;
1073 }
1074
1075
1076 bool wxLocale::AddCatalog(const wxString& domain)
1077 {
1078     wxTranslations *t = wxTranslations::Get();
1079     if ( !t )
1080         return false;
1081     return t->AddCatalog(domain);
1082 }
1083
1084 bool wxLocale::AddCatalog(const wxString& domain, wxLanguage msgIdLanguage)
1085 {
1086     wxTranslations *t = wxTranslations::Get();
1087     if ( !t )
1088         return false;
1089     return t->AddCatalog(domain, msgIdLanguage);
1090 }
1091
1092 // add a catalog to our linked list
1093 bool wxLocale::AddCatalog(const wxString& szDomain,
1094                         wxLanguage      msgIdLanguage,
1095                         const wxString& msgIdCharset)
1096 {
1097     wxTranslations *t = wxTranslations::Get();
1098     if ( !t )
1099         return false;
1100 #if wxUSE_UNICODE
1101     wxUnusedVar(msgIdCharset);
1102     return t->AddCatalog(szDomain, msgIdLanguage);
1103 #else
1104     return t->AddCatalog(szDomain, msgIdLanguage, msgIdCharset);
1105 #endif
1106 }
1107
1108 bool wxLocale::IsLoaded(const wxString& domain) const
1109 {
1110     wxTranslations *t = wxTranslations::Get();
1111     if ( !t )
1112         return false;
1113     return t->IsLoaded(domain);
1114 }
1115
1116 wxString wxLocale::GetHeaderValue(const wxString& header,
1117                                   const wxString& domain) const
1118 {
1119     wxTranslations *t = wxTranslations::Get();
1120     if ( !t )
1121         return wxEmptyString;
1122     return t->GetHeaderValue(header, domain);
1123 }
1124
1125 // ----------------------------------------------------------------------------
1126 // accessors for locale-dependent data
1127 // ----------------------------------------------------------------------------
1128
1129 #if defined(__WINDOWS__) || defined(__WXOSX__)
1130
1131 namespace
1132 {
1133
1134 // This function translates from Unicode date formats described at
1135 //
1136 //      http://unicode.org/reports/tr35/tr35-6.html#Date_Format_Patterns
1137 //
1138 // to strftime()-like syntax. This translation is not lossless but we try to do
1139 // our best.
1140
1141 static wxString TranslateFromUnicodeFormat(const wxString& fmt)
1142 {
1143     wxString fmtWX;
1144     fmtWX.reserve(fmt.length());
1145
1146     char chLast = '\0';
1147     size_t lastCount = 0;
1148
1149     const char* formatchars =
1150         "dghHmMsSy"
1151 #ifdef __WINDOWS__
1152         "t"
1153 #else
1154         "EawD"
1155 #endif
1156         ;
1157     for ( wxString::const_iterator p = fmt.begin(); /* end handled inside */; ++p )
1158     {
1159         if ( p != fmt.end() )
1160         {
1161             if ( *p == chLast )
1162             {
1163                 lastCount++;
1164                 continue;
1165             }
1166
1167             const wxUniChar ch = (*p).GetValue();
1168             if ( ch.IsAscii() && strchr(formatchars, ch) )
1169             {
1170                 // these characters come in groups, start counting them
1171                 chLast = ch;
1172                 lastCount = 1;
1173                 continue;
1174             }
1175         }
1176
1177         // interpret any special characters we collected so far
1178         if ( lastCount )
1179         {
1180             switch ( chLast )
1181             {
1182                 case 'd':
1183                     switch ( lastCount )
1184                     {
1185                         case 1: // d
1186                         case 2: // dd
1187                             // these two are the same as we don't distinguish
1188                             // between 1 and 2 digits for days
1189                             fmtWX += "%d";
1190                             break;
1191 #ifdef __WINDOWS__
1192                         case 3: // ddd
1193                             fmtWX += "%a";
1194                             break;
1195
1196                         case 4: // dddd
1197                             fmtWX += "%A";
1198                             break;
1199 #endif
1200                         default:
1201                             wxFAIL_MSG( "too many 'd's" );
1202                     }
1203                     break;
1204 #ifndef __WINDOWS__
1205                 case 'D':
1206                     switch ( lastCount )
1207                     {
1208                         case 1: // D
1209                         case 2: // DD
1210                         case 3: // DDD
1211                             fmtWX += "%j";
1212                             break;
1213
1214                         default:
1215                             wxFAIL_MSG( "wrong number of 'D's" );
1216                     }
1217                     break;
1218                case 'w':
1219                     switch ( lastCount )
1220                     {
1221                         case 1: // w
1222                         case 2: // ww
1223                             fmtWX += "%W";
1224                             break;
1225
1226                         default:
1227                             wxFAIL_MSG( "wrong number of 'w's" );
1228                     }
1229                     break;
1230                 case 'E':
1231                    switch ( lastCount )
1232                     {
1233                         case 1: // E
1234                         case 2: // EE
1235                         case 3: // EEE
1236                             fmtWX += "%a";
1237                             break;
1238                         case 4: // EEEE
1239                             fmtWX += "%A";
1240                             break;
1241                         case 5: // EEEEE
1242                             fmtWX += "%a";
1243                             break;
1244
1245                         default:
1246                             wxFAIL_MSG( "wrong number of 'E's" );
1247                     }
1248                     break;
1249 #endif
1250                 case 'M':
1251                     switch ( lastCount )
1252                     {
1253                         case 1: // M
1254                         case 2: // MM
1255                             // as for 'd' and 'dd' above
1256                             fmtWX += "%m";
1257                             break;
1258
1259                         case 3:
1260                             fmtWX += "%b";
1261                             break;
1262
1263                         case 4:
1264                             fmtWX += "%B";
1265                             break;
1266
1267                         default:
1268                             wxFAIL_MSG( "too many 'M's" );
1269                     }
1270                     break;
1271
1272                 case 'y':
1273                     switch ( lastCount )
1274                     {
1275                         case 1: // y
1276                         case 2: // yy
1277                             fmtWX += "%y";
1278                             break;
1279
1280                         case 4: // yyyy
1281                             fmtWX += "%Y";
1282                             break;
1283
1284                         default:
1285                             wxFAIL_MSG( "wrong number of 'y's" );
1286                     }
1287                     break;
1288
1289                 case 'H':
1290                     switch ( lastCount )
1291                     {
1292                         case 1: // H
1293                         case 2: // HH
1294                             fmtWX += "%H";
1295                             break;
1296
1297                         default:
1298                             wxFAIL_MSG( "wrong number of 'H's" );
1299                     }
1300                     break;
1301
1302                case 'h':
1303                     switch ( lastCount )
1304                     {
1305                         case 1: // h
1306                         case 2: // hh
1307                             fmtWX += "%I";
1308                             break;
1309
1310                         default:
1311                             wxFAIL_MSG( "wrong number of 'h's" );
1312                     }
1313                     break;
1314
1315                case 'm':
1316                     switch ( lastCount )
1317                     {
1318                         case 1: // m
1319                         case 2: // mm
1320                             fmtWX += "%M";
1321                             break;
1322
1323                         default:
1324                             wxFAIL_MSG( "wrong number of 'm's" );
1325                     }
1326                     break;
1327
1328                case 's':
1329                     switch ( lastCount )
1330                     {
1331                         case 1: // s
1332                         case 2: // ss
1333                             fmtWX += "%S";
1334                             break;
1335
1336                         default:
1337                             wxFAIL_MSG( "wrong number of 's's" );
1338                     }
1339                     break;
1340
1341                 case 'g':
1342                     // strftime() doesn't have era string,
1343                     // ignore this format
1344                     wxASSERT_MSG( lastCount <= 2, "too many 'g's" );
1345
1346                     break;
1347 #ifndef __WINDOWS__
1348                 case 'a':
1349                     fmtWX += "%p";
1350                     break;
1351 #endif
1352 #ifdef __WINDOWS__
1353                 case 't':
1354                     switch ( lastCount )
1355                     {
1356                         case 1: // t
1357                         case 2: // tt
1358                             fmtWX += "%p";
1359                             break;
1360
1361                         default:
1362                             wxFAIL_MSG( "too many 't's" );
1363                     }
1364                     break;
1365 #endif
1366                 default:
1367                     wxFAIL_MSG( "unreachable" );
1368             }
1369
1370             chLast = '\0';
1371             lastCount = 0;
1372         }
1373
1374         if ( p == fmt.end() )
1375             break;
1376
1377         // not a special character so must be just a separator, treat as is
1378         if ( *p == wxT('%') )
1379         {
1380             // this one needs to be escaped
1381             fmtWX += wxT('%');
1382         }
1383
1384         fmtWX += *p;
1385     }
1386
1387     return fmtWX;
1388 }
1389
1390 } // anonymous namespace
1391
1392 #endif // __WINDOWS__ || __WXOSX__
1393
1394 #if defined(__WINDOWS__)
1395
1396 namespace
1397 {
1398
1399 LCTYPE GetLCTYPEFormatFromLocalInfo(wxLocaleInfo index)
1400 {
1401     switch ( index )
1402     {
1403         case wxLOCALE_SHORT_DATE_FMT:
1404             return LOCALE_SSHORTDATE;
1405
1406         case wxLOCALE_LONG_DATE_FMT:
1407             return LOCALE_SLONGDATE;
1408
1409         case wxLOCALE_TIME_FMT:
1410             return LOCALE_STIMEFORMAT;
1411
1412         default:
1413             wxFAIL_MSG( "no matching LCTYPE" );
1414     }
1415
1416     return 0;
1417 }
1418
1419 } // anonymous namespace
1420
1421 /* static */
1422 wxString wxLocale::GetInfo(wxLocaleInfo index, wxLocaleCategory cat)
1423 {
1424     wxUint32 lcid = LOCALE_USER_DEFAULT;
1425     if ( wxGetLocale() )
1426     {
1427         const wxLanguageInfo * const
1428             info = GetLanguageInfo(wxGetLocale()->GetLanguage());
1429         if ( info )
1430             lcid = info->GetLCID();
1431     }
1432
1433     wxString str;
1434
1435     wxChar buf[256];
1436     buf[0] = wxT('\0');
1437
1438     switch ( index )
1439     {
1440         case wxLOCALE_THOUSANDS_SEP:
1441             if ( ::GetLocaleInfo(lcid, LOCALE_STHOUSAND, buf, WXSIZEOF(buf)) )
1442                 str = buf;
1443             break;
1444
1445         case wxLOCALE_DECIMAL_POINT:
1446             if ( ::GetLocaleInfo(lcid,
1447                                  cat == wxLOCALE_CAT_MONEY
1448                                      ? LOCALE_SMONDECIMALSEP
1449                                      : LOCALE_SDECIMAL,
1450                                  buf,
1451                                  WXSIZEOF(buf)) )
1452             {
1453                 str = buf;
1454
1455                 // As we get our decimal point separator from Win32 and not the
1456                 // CRT there is a possibility of mismatch between them and this
1457                 // can easily happen if the user code called setlocale()
1458                 // instead of using wxLocale to change the locale. And this can
1459                 // result in very strange bugs elsewhere in the code as the
1460                 // assumptions that formatted strings do use the decimal
1461                 // separator actually fail, so check for it here.
1462                 wxASSERT_MSG
1463                 (
1464                     wxString::Format("%.3f", 1.23).find(str) != wxString::npos,
1465                     "Decimal separator mismatch -- did you use setlocale()?"
1466                     "If so, use wxLocale to change the locale instead."
1467                 );
1468             }
1469             break;
1470
1471         case wxLOCALE_SHORT_DATE_FMT:
1472         case wxLOCALE_LONG_DATE_FMT:
1473         case wxLOCALE_TIME_FMT:
1474             if ( ::GetLocaleInfo(lcid, GetLCTYPEFormatFromLocalInfo(index),
1475                                  buf, WXSIZEOF(buf)) )
1476             {
1477                 return TranslateFromUnicodeFormat(buf);
1478             }
1479             break;
1480
1481         case wxLOCALE_DATE_TIME_FMT:
1482             // there doesn't seem to be any specific setting for this, so just
1483             // combine date and time ones
1484             //
1485             // we use the short date because this is what "%c" uses by default
1486             // ("%#c" uses long date but we have no way to specify the
1487             // alternate representation here)
1488             {
1489                 const wxString datefmt = GetInfo(wxLOCALE_SHORT_DATE_FMT);
1490                 if ( datefmt.empty() )
1491                     break;
1492
1493                 const wxString timefmt = GetInfo(wxLOCALE_TIME_FMT);
1494                 if ( timefmt.empty() )
1495                     break;
1496
1497                 str << datefmt << ' ' << timefmt;
1498             }
1499             break;
1500
1501         default:
1502             wxFAIL_MSG( "unknown wxLocaleInfo" );
1503     }
1504
1505     return str;
1506 }
1507
1508 #elif defined(__WXOSX__)
1509
1510 /* static */
1511 wxString wxLocale::GetInfo(wxLocaleInfo index, wxLocaleCategory WXUNUSED(cat))
1512 {
1513     CFLocaleRef userLocaleRefRaw;
1514     if ( wxGetLocale() )
1515     {
1516         userLocaleRefRaw = CFLocaleCreate
1517                         (
1518                                 kCFAllocatorDefault,
1519                                 wxCFStringRef(wxGetLocale()->GetCanonicalName())
1520                         );
1521     }
1522     else // no current locale, use the default one
1523     {
1524         userLocaleRefRaw = CFLocaleCopyCurrent();
1525     }
1526
1527     wxCFRef<CFLocaleRef> userLocaleRef(userLocaleRefRaw);
1528
1529     CFStringRef cfstr = 0;
1530     switch ( index )
1531     {
1532         case wxLOCALE_THOUSANDS_SEP:
1533             cfstr = (CFStringRef) CFLocaleGetValue(userLocaleRef, kCFLocaleGroupingSeparator);
1534             break;
1535
1536         case wxLOCALE_DECIMAL_POINT:
1537             cfstr = (CFStringRef) CFLocaleGetValue(userLocaleRef, kCFLocaleDecimalSeparator);
1538             break;
1539
1540         case wxLOCALE_SHORT_DATE_FMT:
1541         case wxLOCALE_LONG_DATE_FMT:
1542         case wxLOCALE_DATE_TIME_FMT:
1543         case wxLOCALE_TIME_FMT:
1544             {
1545                 CFDateFormatterStyle dateStyle = kCFDateFormatterNoStyle;
1546                 CFDateFormatterStyle timeStyle = kCFDateFormatterNoStyle;
1547                 switch (index )
1548                 {
1549                     case wxLOCALE_SHORT_DATE_FMT:
1550                         dateStyle = kCFDateFormatterShortStyle;
1551                         break;
1552                     case wxLOCALE_LONG_DATE_FMT:
1553                         dateStyle = kCFDateFormatterFullStyle;
1554                         break;
1555                     case wxLOCALE_DATE_TIME_FMT:
1556                         dateStyle = kCFDateFormatterFullStyle;
1557                         timeStyle = kCFDateFormatterMediumStyle;
1558                         break;
1559                     case wxLOCALE_TIME_FMT:
1560                         timeStyle = kCFDateFormatterMediumStyle;
1561                         break;
1562                     default:
1563                         wxFAIL_MSG( "unexpected time locale" );
1564                         return wxString();
1565                 }
1566                 wxCFRef<CFDateFormatterRef> dateFormatter( CFDateFormatterCreate
1567                     (NULL, userLocaleRef, dateStyle, timeStyle));
1568                 wxCFStringRef cfs = wxCFRetain( CFDateFormatterGetFormat(dateFormatter ));
1569                 wxString format = TranslateFromUnicodeFormat(cfs.AsString());
1570                 // we always want full years
1571                 format.Replace("%y","%Y");
1572                 return format;
1573             }
1574             break;
1575
1576         default:
1577             wxFAIL_MSG( "Unknown locale info" );
1578             return wxString();
1579     }
1580
1581     wxCFStringRef str(wxCFRetain(cfstr));
1582     return str.AsString();
1583 }
1584
1585 #else // !__WINDOWS__ && !__WXOSX__, assume generic POSIX
1586
1587 namespace
1588 {
1589
1590 wxString GetDateFormatFromLangInfo(wxLocaleInfo index)
1591 {
1592 #ifdef HAVE_LANGINFO_H
1593     // array containing parameters for nl_langinfo() indexes by offset of index
1594     // from wxLOCALE_SHORT_DATE_FMT
1595     static const nl_item items[] =
1596     {
1597         D_FMT, D_T_FMT, D_T_FMT, T_FMT,
1598     };
1599
1600     const int nlidx = index - wxLOCALE_SHORT_DATE_FMT;
1601     if ( nlidx < 0 || nlidx >= (int)WXSIZEOF(items) )
1602     {
1603         wxFAIL_MSG( "logic error in GetInfo() code" );
1604         return wxString();
1605     }
1606
1607     const wxString fmt(nl_langinfo(items[nlidx]));
1608
1609     // just return the format returned by nl_langinfo() except for long date
1610     // format which we need to recover from date/time format ourselves (but not
1611     // if we failed completely)
1612     if ( fmt.empty() || index != wxLOCALE_LONG_DATE_FMT )
1613         return fmt;
1614
1615     // this is not 100% precise but the idea is that a typical date/time format
1616     // under POSIX systems is a combination of a long date format with time one
1617     // so we should be able to get just the long date format by removing all
1618     // time-specific format specifiers
1619     static const char *timeFmtSpecs = "HIklMpPrRsSTXzZ";
1620     static const char *timeSep = " :./-";
1621
1622     wxString fmtDateOnly;
1623     const wxString::const_iterator end = fmt.end();
1624     wxString::const_iterator lastSep = end;
1625     for ( wxString::const_iterator p = fmt.begin(); p != end; ++p )
1626     {
1627         if ( strchr(timeSep, *p) )
1628         {
1629             if ( lastSep == end )
1630                 lastSep = p;
1631
1632             // skip it for now, we'll discard it if it's followed by a time
1633             // specifier later or add it to fmtDateOnly if it is not
1634             continue;
1635         }
1636
1637         if ( *p == '%' &&
1638                 (p + 1 != end) && strchr(timeFmtSpecs, p[1]) )
1639         {
1640             // time specified found: skip it and any preceding separators
1641             ++p;
1642             lastSep = end;
1643             continue;
1644         }
1645
1646         if ( lastSep != end )
1647         {
1648             fmtDateOnly += wxString(lastSep, p);
1649             lastSep = end;
1650         }
1651
1652         fmtDateOnly += *p;
1653     }
1654
1655     return fmtDateOnly;
1656 #else // !HAVE_LANGINFO_H
1657     wxUnusedVar(index);
1658
1659     // no fallback, let the application deal with unavailability of
1660     // nl_langinfo() itself as there is no good way for us to do it (well, we
1661     // could try to reverse engineer the format from strftime() output but this
1662     // looks like too much trouble considering the relatively small number of
1663     // systems without nl_langinfo() still in use)
1664     return wxString();
1665 #endif // HAVE_LANGINFO_H/!HAVE_LANGINFO_H
1666 }
1667
1668 } // anonymous namespace
1669
1670 /* static */
1671 wxString wxLocale::GetInfo(wxLocaleInfo index, wxLocaleCategory cat)
1672 {
1673     lconv * const lc = localeconv();
1674     if ( !lc )
1675         return wxString();
1676
1677     switch ( index )
1678     {
1679         case wxLOCALE_THOUSANDS_SEP:
1680             if ( cat == wxLOCALE_CAT_NUMBER )
1681                 return lc->thousands_sep;
1682             else if ( cat == wxLOCALE_CAT_MONEY )
1683                 return lc->mon_thousands_sep;
1684
1685             wxFAIL_MSG( "invalid wxLocaleCategory" );
1686             break;
1687
1688
1689         case wxLOCALE_DECIMAL_POINT:
1690             if ( cat == wxLOCALE_CAT_NUMBER )
1691                 return lc->decimal_point;
1692             else if ( cat == wxLOCALE_CAT_MONEY )
1693                 return lc->mon_decimal_point;
1694
1695             wxFAIL_MSG( "invalid wxLocaleCategory" );
1696             break;
1697
1698         case wxLOCALE_SHORT_DATE_FMT:
1699         case wxLOCALE_LONG_DATE_FMT:
1700         case wxLOCALE_DATE_TIME_FMT:
1701         case wxLOCALE_TIME_FMT:
1702             if ( cat != wxLOCALE_CAT_DATE && cat != wxLOCALE_CAT_DEFAULT )
1703             {
1704                 wxFAIL_MSG( "invalid wxLocaleCategory" );
1705                 break;
1706             }
1707
1708             return GetDateFormatFromLangInfo(index);
1709
1710
1711         default:
1712             wxFAIL_MSG( "unknown wxLocaleInfo value" );
1713     }
1714
1715     return wxString();
1716 }
1717
1718 #endif // platform
1719
1720 // ----------------------------------------------------------------------------
1721 // global functions and variables
1722 // ----------------------------------------------------------------------------
1723
1724 // retrieve/change current locale
1725 // ------------------------------
1726
1727 // the current locale object
1728 static wxLocale *g_pLocale = NULL;
1729
1730 wxLocale *wxGetLocale()
1731 {
1732     return g_pLocale;
1733 }
1734
1735 wxLocale *wxSetLocale(wxLocale *pLocale)
1736 {
1737     wxLocale *pOld = g_pLocale;
1738     g_pLocale = pLocale;
1739     return pOld;
1740 }
1741
1742
1743
1744 // ----------------------------------------------------------------------------
1745 // wxLocale module (for lazy destruction of languagesDB)
1746 // ----------------------------------------------------------------------------
1747
1748 class wxLocaleModule: public wxModule
1749 {
1750     DECLARE_DYNAMIC_CLASS(wxLocaleModule)
1751     public:
1752         wxLocaleModule() {}
1753
1754         bool OnInit()
1755         {
1756             return true;
1757         }
1758
1759         void OnExit()
1760         {
1761             wxLocale::DestroyLanguagesDB();
1762         }
1763 };
1764
1765 IMPLEMENT_DYNAMIC_CLASS(wxLocaleModule, wxModule)
1766
1767 #endif // wxUSE_INTL