src/common/wxchar.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wxchar.cpp
   3 // Purpose:     wxChar implementation
   4 // Author:      Ove Kåven
   5 // Modified by:
   6 // Created:     09/04/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWindows copyright
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13   #pragma implementation "wxchar.h"
  14 #endif
  15
  16 // ===========================================================================
  17 // headers, declarations, constants
  18 // ===========================================================================
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24   #pragma hdrstop
  25 #endif
  26
  27 #define _ISOC9X_SOURCE 1 // to get vsscanf()
  28 #define _BSD_SOURCE    1 // to still get strdup()
  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <locale.h>
  34 #include <time.h>
  35
  36 #ifndef WX_PRECOMP
  37   #include "wx/defs.h"
  38   #include "wx/wxchar.h"
  39   #include "wx/string.h"
  40   #include "wx/hash.h"
  41 #endif
  42
  43 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
  44   #include <windef.h>
  45   #include <winbase.h>
  46   #include <winnls.h>
  47   #include <winnt.h>
  48 #endif
  49
  50 #if wxUSE_WCHAR_T
  51 size_t WXDLLEXPORT wxMB2WC(wchar_t *buf, const char *psz, size_t n)
  52 {
  53   if (buf) {
  54     if (!n || !*psz) {
  55       if (n) *buf = wxT('\0');
  56       return 0;
  57     }
  58     return mbstowcs(buf, psz, n);
  59   }
  60
  61   // assume that we have mbsrtowcs() too if we have wcsrtombs()
  62 #ifdef HAVE_WCSRTOMBS
  63   mbstate_t mbstate;
  64   return mbsrtowcs((wchar_t *) NULL, &psz, 0, &mbstate);
  65 #else  // !GNU libc
  66   return mbstowcs((wchar_t *) NULL, psz, 0);
  67 #endif // GNU
  68 }
  69
  70 size_t WXDLLEXPORT wxWC2MB(char *buf, const wchar_t *pwz, size_t n)
  71 {
  72   if (buf) {
  73     if (!n || !*pwz) {
  74       // glibc2.1 chokes on null input
  75       if (n) *buf = '\0';
  76       return 0;
  77     }
  78     return wcstombs(buf, pwz, n);
  79   }
  80
  81 #if HAVE_WCSRTOMBS
  82   mbstate_t mbstate;
  83   return wcsrtombs((char *) NULL, &pwz, 0, &mbstate);
  84 #else  // !GNU libc
  85   return wcstombs((char *) NULL, pwz, 0);
  86 #endif // GNU
  87 }
  88 #endif // wxUSE_WCHAR_T
  89
  90 bool WXDLLEXPORT wxOKlibc()
  91 {
  92 #if wxUSE_WCHAR_T && defined(__UNIX__) && defined(__GLIBC__)
  93   // glibc 2.0 uses UTF-8 even when it shouldn't
  94   wchar_t res = 0;
  95   if ((MB_CUR_MAX == 2) &&
  96       (wxMB2WC(&res, "\xdd\xa5", 1) == 1) &&
  97       (res==0x765)) {
  98     // this is UTF-8 allright, check whether that's what we want
  99     char *cur_locale = setlocale(LC_CTYPE, NULL);
 100     if ((strlen(cur_locale) < 4) ||
 101             (strcasecmp(cur_locale + strlen(cur_locale) - 4, "utf8")) ||
 102             (strcasecmp(cur_locale + strlen(cur_locale) - 5, "utf-8"))) {
 103       // nope, don't use libc conversion
 104       return FALSE;
 105     }
 106   }
 107 #endif
 108   return TRUE;
 109 }
 110
 111 #ifndef HAVE_WCSLEN
 112 size_t   WXDLLEXPORT wcslen(const wchar_t *s)
 113 {
 114   size_t len = 0;
 115   while (s[len]) len++;
 116   return len;
 117 }
 118 #endif
 119
 120 // ============================================================================
 121 // printf() functions business
 122 // ============================================================================
 123
 124 // ----------------------------------------------------------------------------
 125 // implement [v]snprintf() if the system doesn't provide a safe one
 126 // ----------------------------------------------------------------------------
 127
 128 #if !defined(wxVsnprintf_)
 129 int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
 130                              const wxChar *format, va_list argptr)
 131 {
 132     // buffer to avoid dynamic memory allocation each time for small strings
 133     char szScratch[1024];
 134
 135     // number of characters in the buffer so far, must be less than lenMax
 136     size_t lenCur = 0;
 137
 138     for (size_t n = 0; format[n]; n++)
 139     {
 140         if (format[n] == wxT('%')) {
 141             static char s_szFlags[256] = "%";
 142             size_t flagofs = 1;
 143             bool adj_left = FALSE,
 144                  in_prec = FALSE,
 145                  prec_dot = FALSE,
 146                  done = FALSE;
 147             int ilen = 0;
 148             size_t min_width = 0,
 149                    max_width = wxSTRING_MAXLEN;
 150             do {
 151
 152 #define CHECK_PREC \
 153                 if (in_prec && !prec_dot) \
 154                 { \
 155                     s_szFlags[flagofs++] = '.'; \
 156                     prec_dot = TRUE; \
 157                 }
 158
 159 #define APPEND_CH(ch) \
 160                 if ( lenCur == lenMax ) \
 161                     return -1; \
 162                 \
 163                 buf[lenCur++] = ch
 164
 165 #define APPEND_STR(s) \
 166                 for ( const char *p = s; *p; p++ ) \
 167                 { \
 168                     APPEND_CH((wchar_t)(*p)); \
 169                 }
 170
 171 #define APPEND_WSTR(s) \
 172                 for ( const wchar_t *p = s; *p; p++ ) \
 173                 { \
 174                     APPEND_CH(*p); \
 175                 }
 176
 177                 switch (format[++n]) {
 178                     case wxT('\0'):
 179                         APPEND_CH(_T('\0'));
 180
 181                         done = TRUE;
 182                         break;
 183
 184                     case wxT('%'):
 185                         APPEND_CH(_T('%'));
 186                         done = TRUE;
 187                         break;
 188
 189                     case wxT('#'):
 190                     case wxT('0'):
 191                     case wxT(' '):
 192                     case wxT('+'):
 193                     case wxT('\''):
 194                         CHECK_PREC
 195                         s_szFlags[flagofs++] = format[n];
 196                         break;
 197
 198                     case wxT('-'):
 199                         CHECK_PREC
 200                         adj_left = TRUE;
 201                         s_szFlags[flagofs++] = format[n];
 202                         break;
 203
 204                     case wxT('.'):
 205                         CHECK_PREC
 206                             in_prec = TRUE;
 207                         prec_dot = FALSE;
 208                         max_width = 0;
 209                         // dot will be auto-added to s_szFlags if non-negative number follows
 210                         break;
 211
 212                     case wxT('h'):
 213                         ilen = -1;
 214                         CHECK_PREC
 215                         s_szFlags[flagofs++] = format[n];
 216                         break;
 217
 218                     case wxT('l'):
 219                         ilen = 1;
 220                         CHECK_PREC
 221                         s_szFlags[flagofs++] = format[n];
 222                         break;
 223
 224                     case wxT('q'):
 225                     case wxT('L'):
 226                         ilen = 2;
 227                         CHECK_PREC
 228                         s_szFlags[flagofs++] = format[n];
 229                         break;
 230
 231                     case wxT('Z'):
 232                         ilen = 3;
 233                         CHECK_PREC
 234                         s_szFlags[flagofs++] = format[n];
 235                         break;
 236
 237                     case wxT('*'):
 238                         {
 239                             int len = va_arg(argptr, int);
 240                             if (in_prec) {
 241                                 if (len<0) break;
 242                                 CHECK_PREC
 243                                     max_width = len;
 244                             } else {
 245                                 if (len<0) {
 246                                     adj_left = !adj_left;
 247                                     s_szFlags[flagofs++] = '-';
 248                                     len = -len;
 249                                 }
 250                                 min_width = len;
 251                             }
 252                             flagofs += ::sprintf(s_szFlags+flagofs,"%d",len);
 253                         }
 254                         break;
 255
 256                     case wxT('1'): case wxT('2'): case wxT('3'):
 257                     case wxT('4'): case wxT('5'): case wxT('6'):
 258                     case wxT('7'): case wxT('8'): case wxT('9'):
 259                         {
 260                             int len = 0;
 261                             CHECK_PREC
 262                                 while ((format[n]>=wxT('0')) && (format[n]<=wxT('9'))) {
 263                                     s_szFlags[flagofs++] = format[n];
 264                                     len = len*10 + (format[n] - wxT('0'));
 265                                     n++;
 266                                 }
 267                             if (in_prec) max_width = len;
 268                             else min_width = len;
 269                             n--; // the main loop pre-increments n again
 270                         }
 271                         break;
 272
 273                     case wxT('d'):
 274                     case wxT('i'):
 275                     case wxT('o'):
 276                     case wxT('u'):
 277                     case wxT('x'):
 278                     case wxT('X'):
 279                         CHECK_PREC
 280                         s_szFlags[flagofs++] = format[n];
 281                         s_szFlags[flagofs] = '\0';
 282                         if (ilen == 0 ) {
 283                             int val = va_arg(argptr, int);
 284                             ::sprintf(szScratch, s_szFlags, val);
 285                         }
 286                         else if (ilen == -1) {
 287                             short int val = va_arg(argptr, short int);
 288                             ::sprintf(szScratch, s_szFlags, val);
 289                         }
 290                         else if (ilen == 1) {
 291                             long int val = va_arg(argptr, long int);
 292                             ::sprintf(szScratch, s_szFlags, val);
 293                         }
 294                         else if (ilen == 2) {
 295 #if SIZEOF_LONG_LONG
 296                             long long int val = va_arg(argptr, long long int);
 297                             ::sprintf(szScratch, s_szFlags, val);
 298 #else
 299                             long int val = va_arg(argptr, long int);
 300                             ::sprintf(szScratch, s_szFlags, val);
 301 #endif
 302                         }
 303                         else if (ilen == 3) {
 304                             size_t val = va_arg(argptr, size_t);
 305                             ::sprintf(szScratch, s_szFlags, val);
 306                         }
 307
 308                         APPEND_STR(szScratch);
 309
 310                         done = TRUE;
 311                         break;
 312
 313                     case wxT('e'):
 314                     case wxT('E'):
 315                     case wxT('f'):
 316                     case wxT('g'):
 317                     case wxT('G'):
 318                         CHECK_PREC
 319                         s_szFlags[flagofs++] = format[n];
 320                         s_szFlags[flagofs] = '\0';
 321                         if (ilen == 2) {
 322                             long double val = va_arg(argptr, long double);
 323                             ::sprintf(szScratch, s_szFlags, val);
 324                         } else {
 325                             double val = va_arg(argptr, double);
 326                             ::sprintf(szScratch, s_szFlags, val);
 327                         }
 328
 329                         APPEND_STR(szScratch);
 330
 331                         done = TRUE;
 332                         break;
 333
 334                     case wxT('p'):
 335                         {
 336                             void *val = va_arg(argptr, void *);
 337                             CHECK_PREC
 338                                 s_szFlags[flagofs++] = format[n];
 339                             s_szFlags[flagofs] = '\0';
 340                             ::sprintf(szScratch, s_szFlags, val);
 341
 342                             APPEND_STR(szScratch);
 343
 344                             done = TRUE;
 345                         }
 346                         break;
 347
 348                     case wxT('c'):
 349                         {
 350                             wxChar val = va_arg(argptr, int);
 351                             // we don't need to honor padding here, do we?
 352                             APPEND_CH(val);
 353
 354                             done = TRUE;
 355                         }
 356                         break;
 357
 358                     case wxT('s'):
 359                         if (ilen == -1) {
 360                             // wx extension: we'll let %hs mean non-Unicode strings
 361                             char *val = va_arg(argptr, char *);
 362 #if wxUSE_UNICODE
 363                             // ASCII->Unicode constructor handles max_width right
 364                             wxString s(val, wxConvLibc, max_width);
 365 #else
 366                             size_t len = wxSTRING_MAXLEN;
 367                             if (val) {
 368                                 for (len = 0; val[len] && (len<max_width); len++);
 369                             } else val = wxT("(null)");
 370                             wxString s(val, len);
 371 #endif
 372                             if (s.Len() < min_width)
 373                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 374
 375                             APPEND_WSTR(s);
 376                         } else {
 377                             wxChar *val = va_arg(argptr, wxChar *);
 378                             size_t len = wxSTRING_MAXLEN;
 379                             if (val) {
 380                                 for (len = 0; val[len] && (len<max_width); len++);
 381                             } else val = wxT("(null)");
 382                             wxString s(val, len);
 383                             if (s.Len() < min_width)
 384                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 385
 386                             APPEND_WSTR(s);
 387                         }
 388                         done = TRUE;
 389                         break;
 390
 391                     case wxT('n'):
 392                         if (ilen == 0) {
 393                             int *val = va_arg(argptr, int *);
 394                             *val = lenCur;
 395                         }
 396                         else if (ilen == -1) {
 397                             short int *val = va_arg(argptr, short int *);
 398                             *val = lenCur;
 399                         }
 400                         else if (ilen >= 1) {
 401                             long int *val = va_arg(argptr, long int *);
 402                             *val = lenCur;
 403                         }
 404                         done = TRUE;
 405                         break;
 406
 407                     default:
 408                         if (wxIsalpha(format[n]))
 409                             // probably some flag not taken care of here yet
 410                             s_szFlags[flagofs++] = format[n];
 411                         else {
 412                             // bad format
 413                             APPEND_CH(_T('%')); // just to pass the glibc tst-printf.c
 414                             n--;
 415                             done = TRUE;
 416                         }
 417                         break;
 418                 }
 419             } while (!done);
 420         }
 421         else
 422         {
 423             APPEND_CH(format[n]);
 424         }
 425     }
 426
 427     return lenCur;
 428 }
 429
 430 #undef APPEND_CH
 431 #undef APPEND_STR
 432 #undef CHECK_PREC
 433
 434 #endif // !wxVsnprintfA
 435
 436 #if !defined(wxSnprintf_)
 437 int WXDLLEXPORT wxSnprintf_(wxChar *buf, size_t len, const wxChar *format, ...)
 438 {
 439     va_list argptr;
 440     va_start(argptr, format);
 441
 442     int iLen = wxVsnprintf_(buf, len, format, argptr);
 443
 444     va_end(argptr);
 445
 446     return iLen;
 447 }
 448 #endif // wxSnprintf_
 449
 450 // ----------------------------------------------------------------------------
 451 // implement the standard IO functions for wide char if libc doesn't have them
 452 // ----------------------------------------------------------------------------
 453
 454 #ifndef HAVE_FPUTWC
 455
 456 int wxFputs(const wchar_t *ws, FILE *stream)
 457 {
 458     // counting the number of wide characters written isn't worth the trouble,
 459     // simply distinguish between ok and error
 460     return fputs(wxConvLibc.cWC2MB(ws), stream) == -1 ? -1 : 0;
 461 }
 462
 463 int /* not wint_t */ wxPutc(wchar_t wc, FILE *stream)
 464 {
 465     wchar_t ws[2] = { wc, L'\0' };
 466
 467     return wxFputs(ws, stream);
 468 }
 469
 470 #endif // HAVE_FPUTWC
 471
 472 // NB: we only implement va_list functions here, the ones taking ... are
 473 //     defined below for wxNEED_PRINTF_CONVERSION case anyhow and we reuse
 474 //     the definitions there to avoid duplicating them here
 475 #ifdef wxNEED_WPRINTF
 476
 477 // TODO: implement the scanf() functions
 478 int vwscanf(const wchar_t *format, va_list argptr)
 479 {
 480     wxFAIL_MSG( _T("TODO") );
 481
 482     return -1;
 483 }
 484
 485 int vswscanf(const wchar_t *ws, const wchar_t *format, va_list argptr)
 486 {
 487     wxFAIL_MSG( _T("TODO") );
 488
 489     return -1;
 490 }
 491
 492 int vfwscanf(FILE *stream, const wchar_t *format, va_list argptr)
 493 {
 494     wxFAIL_MSG( _T("TODO") );
 495
 496     return -1;
 497 }
 498
 499 #define vswprintf wxVsnprintf_
 500
 501 int vfwprintf(FILE *stream, const wchar_t *format, va_list argptr)
 502 {
 503     wxString s;
 504     int rc = s.PrintfV(format, argptr);
 505
 506     if ( rc != -1 )
 507     {
 508         // we can't do much better without Unicode support in libc...
 509         if ( fprintf(stream, s.mb_str()) == -1 )
 510             return -1;
 511     }
 512
 513     return rc;
 514 }
 515
 516 int vwprintf(const wchar_t *format, va_list argptr)
 517 {
 518     return wxVfprintf(stdout, format, argptr);
 519 }
 520
 521 #endif // wxNEED_WPRINTF
 522
 523 #ifdef wxNEED_PRINTF_CONVERSION
 524
 525 // ----------------------------------------------------------------------------
 526 // wxFormatConverter: class doing the "%s" -> "%ls" conversion
 527 // ----------------------------------------------------------------------------
 528
 529 /*
 530    Here are the gory details. We want to follow the Windows/MS conventions,
 531    that is to have
 532
 533    In ANSI mode:
 534
 535    format specifier         results in
 536    -----------------------------------
 537    %c, %hc, %hC             char
 538    %lc, %C, %lC             wchar_t
 539
 540    In Unicode mode:
 541
 542    format specifier         results in
 543    -----------------------------------
 544    %hc, %C, %hC             char
 545    %c, %lc, %lC             wchar_t
 546
 547
 548    while on POSIX systems we have %C identical to %lc and %c always means char
 549    (in any mode) while %lc always means wchar_t,
 550
 551    So to use native functions in order to get our semantics we must do the
 552    following translations in Unicode mode (nothing to do in ANSI mode):
 553
 554    wxWindows specifier      POSIX specifier
 555    ----------------------------------------
 556
 557    %hc, %C, %hC             %c
 558    %c                       %lc
 559
 560
 561    And, of course, the same should be done for %s as well.
 562 */
 563
 564 class wxFormatConverter
 565 {
 566 public:
 567     wxFormatConverter(const wxChar *format);
 568
 569     operator const wxChar *() const { return m_nCopied ? m_fmtOrig : m_fmt.c_str(); }
 570
 571 private:
 572     // copy another character to the translated format: this function does the
 573     // copy if we are translating but doesn't do anything at all if we don't,
 574     // so we don't create the translated format string at all unless we really
 575     // need to (i.e. InsertFmtChar() is called)
 576     wxChar CopyFmtChar(wxChar ch)
 577     {
 578         if ( !m_fmtOrig )
 579         {
 580             // we're translating, d copy
 581             m_fmt += ch;
 582         }
 583         else
 584         {
 585             // simply increase the count which should be copied by
 586             // CopyAllBefore() later if needed
 587             m_nCopied++;
 588         }
 589
 590         return ch;
 591     }
 592
 593     // insert an extra character
 594     void InsertFmtChar(wxChar ch)
 595     {
 596         if ( m_fmtOrig )
 597         {
 598             // so far we haven't translated anything yet
 599             CopyAllBefore();
 600         }
 601
 602         m_fmt += ch;
 603     }
 604
 605     void CopyAllBefore()
 606     {
 607         wxASSERT_MSG( m_fmtOrig && m_fmt.empty(), _T("logic error") );
 608
 609         m_fmt = wxString(m_fmtOrig, m_nCopied);
 610
 611         // we won't need it any longer
 612         m_fmtOrig = NULL;
 613     }
 614
 615     static bool IsFlagChar(wxChar ch)
 616     {
 617         return ch == _T('-') || ch == _T('+') ||
 618                ch == _T('0') || ch == _T(' ') || ch == _T('#');
 619     }
 620
 621     void SkipDigits(const wxChar **ppc)
 622     {
 623         while ( **ppc >= _T('0') && **ppc <= _T('9') )
 624             CopyFmtChar(*(*ppc)++);
 625     }
 626
 627     // the translated format
 628     wxString m_fmt;
 629
 630     // the original format
 631     const wxChar *m_fmtOrig;
 632
 633     // the number of characters already copied
 634     size_t m_nCopied;
 635 };
 636
 637 wxFormatConverter::wxFormatConverter(const wxChar *format)
 638 {
 639     m_fmtOrig = format;
 640     m_nCopied = 0;
 641
 642     while ( *format )
 643     {
 644         if ( CopyFmtChar(*format++) == _T('%') )
 645         {
 646             // skip any flags
 647             while ( IsFlagChar(*format) )
 648                 CopyFmtChar(*format++);
 649
 650             // and possible width
 651             if ( *format == _T('*') )
 652                 CopyFmtChar(*format++);
 653             else
 654                 SkipDigits(&format);
 655
 656             // precision?
 657             if ( *format == _T('.') )
 658             {
 659                 SkipDigits(&format);
 660             }
 661
 662             // next we can have a size modifier
 663             enum
 664             {
 665                 Default,
 666                 Short,
 667                 Long
 668             } size;
 669
 670             switch ( *format )
 671             {
 672                 case _T('h'):
 673                     size = Short;
 674                     format++;
 675                     break;
 676
 677                 case _T('l'):
 678                     // "ll" has a different meaning!
 679                     if ( format[1] != _T('l') )
 680                     {
 681                         size = Long;
 682                         format++;
 683                         break;
 684                     }
 685                     //else: fall through
 686
 687                 default:
 688                     size = Default;
 689             }
 690
 691             // and finally we should have the type
 692             switch ( *format )
 693             {
 694                 case _T('C'):
 695                 case _T('S'):
 696                     // %C and %hC -> %c and %lC -> %lc
 697                     if ( size == Long )
 698                         CopyFmtChar(_T('l'));
 699
 700                     InsertFmtChar(*format++ == _T('C') ? _T('c') : _T('s'));
 701                     break;
 702
 703                 case _T('c'):
 704                 case _T('s'):
 705                     // %c -> %lc but %hc stays %hc and %lc is still %lc
 706                     switch ( size )
 707                     {
 708                         case Default:
 709                             InsertFmtChar(_T('l'));
 710                             break;
 711
 712                         case Short:
 713                             CopyFmtChar(_T('h'));
 714                             break;
 715
 716                         case Long:
 717                             ;
 718                     }
 719                     // fall through
 720
 721                 default:
 722                     // nothing special to do
 723                     CopyFmtChar(*format++);
 724             }
 725         }
 726     }
 727 }
 728
 729 #else // !wxNEED_PRINTF_CONVERSION
 730     // no conversion necessary
 731     #define wxFormatConverter(x) (x)
 732 #endif // wxNEED_PRINTF_CONVERSION/!wxNEED_PRINTF_CONVERSION
 733
 734 // ----------------------------------------------------------------------------
 735 // wxPrintf(), wxScanf() and relatives
 736 // ----------------------------------------------------------------------------
 737
 738 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
 739
 740 int wxScanf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
 741 {
 742     va_list argptr;
 743     va_start(argptr, format);
 744
 745     int ret = vwscanf(wxFormatConverter(format), argptr );
 746
 747     va_end(argptr);
 748
 749     return ret;
 750 }
 751
 752 int wxSscanf( const wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 753 {
 754     va_list argptr;
 755     va_start(argptr, format);
 756
 757     int ret = vswscanf( str, wxFormatConverter(format), argptr );
 758
 759     va_end(argptr);
 760
 761     return ret;
 762 }
 763
 764 int wxFscanf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 765 {
 766     va_list argptr;
 767     va_start(argptr, format);
 768
 769     int ret = vfwscanf(stream, wxFormatConverter(format), argptr);
 770
 771     va_end(argptr);
 772
 773     return ret;
 774 }
 775
 776 int wxPrintf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
 777 {
 778     va_list argptr;
 779     va_start(argptr, format);
 780
 781     int ret = vwprintf( wxFormatConverter(format), argptr );
 782
 783     va_end(argptr);
 784
 785     return ret;
 786 }
 787
 788 #ifndef wxSnprintf
 789 int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... ) ATTRIBUTE_PRINTF_4
 790 {
 791     va_list argptr;
 792     va_start(argptr, format);
 793
 794     int ret = vswprintf( str, size, wxFormatConverter(format), argptr );
 795
 796     va_end(argptr);
 797
 798     return ret;
 799 }
 800 #endif // wxSnprintf
 801
 802 int wxSprintf( wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 803 {
 804     va_list argptr;
 805     va_start(argptr, format);
 806
 807     // callers of wxSprintf() deserve what they get
 808     int ret = vswprintf( str, UINT_MAX, wxFormatConverter(format), argptr );
 809
 810     va_end(argptr);
 811
 812     return ret;
 813 }
 814
 815 int wxFprintf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 816 {
 817     va_list argptr;
 818     va_start( argptr, format );
 819
 820     int ret = vfwprintf( stream, wxFormatConverter(format), argptr );
 821
 822     va_end(argptr);
 823
 824     return ret;
 825 }
 826
 827 int wxVsscanf( const wxChar *str, const wxChar *format, va_list argptr )
 828 {
 829     return vswscanf( str, wxFormatConverter(format), argptr );
 830 }
 831
 832 int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr )
 833 {
 834     return vfwprintf( stream, wxFormatConverter(format), argptr );
 835 }
 836
 837 int wxVprintf( const wxChar *format, va_list argptr )
 838 {
 839     return vwprintf( wxFormatConverter(format), argptr );
 840 }
 841
 842 #ifndef wxVsnprintf
 843 int wxVsnprintf( wxChar *str, size_t size, const wxChar *format, va_list argptr )
 844 {
 845     return vswprintf( str, size, wxFormatConverter(format), argptr );
 846 }
 847 #endif // wxVsnprintf
 848
 849 int wxVsprintf( wxChar *str, const wxChar *format, va_list argptr )
 850 {
 851     // same as for wxSprintf()
 852     return vswprintf(str, UINT_MAX, wxFormatConverter(format), argptr);
 853 }
 854
 855 #endif // wxNEED_PRINTF_CONVERSION
 856
 857 // ----------------------------------------------------------------------------
 858 // ctype.h stuff (currently unused)
 859 // ----------------------------------------------------------------------------
 860
 861 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
 862 inline WORD wxMSW_ctype(wxChar ch)
 863 {
 864   WORD ret;
 865   GetStringTypeEx(LOCALE_USER_DEFAULT, CT_CTYPE1, &ch, 1, &ret);
 866   return ret;
 867 }
 868
 869 WXDLLEXPORT int wxIsalnum(wxChar ch) { return IsCharAlphaNumeric(ch); }
 870 WXDLLEXPORT int wxIsalpha(wxChar ch) { return IsCharAlpha(ch); }
 871 WXDLLEXPORT int wxIsctrl(wxChar ch) { return wxMSW_ctype(ch) & C1_CNTRL; }
 872 WXDLLEXPORT int wxIsdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_DIGIT; }
 873 WXDLLEXPORT int wxIsgraph(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_PUNCT|C1_ALPHA); }
 874 WXDLLEXPORT int wxIslower(wxChar ch) { return IsCharLower(ch); }
 875 WXDLLEXPORT int wxIsprint(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_SPACE|C1_PUNCT|C1_ALPHA); }
 876 WXDLLEXPORT int wxIspunct(wxChar ch) { return wxMSW_ctype(ch) & C1_PUNCT; }
 877 WXDLLEXPORT int wxIsspace(wxChar ch) { return wxMSW_ctype(ch) & C1_SPACE; }
 878 WXDLLEXPORT int wxIsupper(wxChar ch) { return IsCharUpper(ch); }
 879 WXDLLEXPORT int wxIsxdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_XDIGIT; }
 880 WXDLLEXPORT int wxTolower(wxChar ch) { return (wxChar)CharLower((LPTSTR)(ch)); }
 881 WXDLLEXPORT int wxToupper(wxChar ch) { return (wxChar)CharUpper((LPTSTR)(ch)); }
 882 #endif
 883
 884 #ifndef wxStrdup
 885 WXDLLEXPORT wxChar * wxStrdup(const wxChar *psz)
 886 {
 887   size_t size = (wxStrlen(psz) + 1) * sizeof(wxChar);
 888   wxChar *ret = (wxChar *) malloc(size);
 889   memcpy(ret, psz, size);
 890   return ret;
 891 }
 892 #endif
 893
 894 #ifndef wxStricmp
 895 int WXDLLEXPORT wxStricmp(const wxChar *psz1, const wxChar *psz2)
 896 {
 897   register wxChar c1, c2;
 898   do {
 899     c1 = wxTolower(*psz1++);
 900     c2 = wxTolower(*psz2++);
 901   } while ( c1 && (c1 == c2) );
 902   return c1 - c2;
 903 }
 904 #endif
 905
 906 #ifndef wxStricmp
 907 int WXDLLEXPORT wxStrnicmp(const wxChar *s1, const wxChar *s2, size_t n)
 908 {
 909   register wxChar c1, c2;
 910   while (n && ((c1 = wxTolower(*s1)) == (c2 = wxTolower(*s2)) ) && c1) n--, s1++, s2++;
 911   if (n) {
 912     if (c1 < c2) return -1;
 913     if (c1 > c2) return 1;
 914   }
 915   return 0;
 916 }
 917 #endif
 918
 919 #ifndef wxStrtok
 920 WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr)
 921 {
 922   if (!psz) psz = *save_ptr;
 923   psz += wxStrspn(psz, delim);
 924   if (!*psz) {
 925     *save_ptr = (wxChar *)NULL;
 926     return (wxChar *)NULL;
 927   }
 928   wxChar *ret = psz;
 929   psz = wxStrpbrk(psz, delim);
 930   if (!psz) *save_ptr = (wxChar*)NULL;
 931   else {
 932     *psz = wxT('\0');
 933     *save_ptr = psz + 1;
 934   }
 935   return ret;
 936 }
 937 #endif
 938
 939 #ifndef wxSetlocale
 940 WXDLLEXPORT wxWCharBuffer wxSetlocale(int category, const wxChar *locale)
 941 {
 942     char *localeOld = setlocale(category, wxConvLocal.cWX2MB(locale));
 943
 944     return wxWCharBuffer(wxConvLocal.cMB2WC(localeOld));
 945 }
 946 #endif
 947
 948 // ----------------------------------------------------------------------------
 949 // string.h functions
 950 // ----------------------------------------------------------------------------
 951
 952 #ifdef wxNEED_WX_STRING_H
 953 WXDLLEXPORT wxChar * wxStrcat(wxChar *dest, const wxChar *src)
 954 {
 955   wxChar *ret = dest;
 956   while (*dest) dest++;
 957   while ((*dest++ = *src++));
 958   return ret;
 959 }
 960
 961 WXDLLEXPORT const wxChar * wxStrchr(const wxChar *s, wxChar c)
 962 {
 963     // be careful here as the terminating NUL makes part of the string
 964     while ( *s != c )
 965     {
 966         if ( !*s++ )
 967             return NULL;
 968     }
 969
 970     return s;
 971 }
 972
 973 WXDLLEXPORT int wxStrcmp(const wxChar *s1, const wxChar *s2)
 974 {
 975   while ((*s1 == *s2) && *s1) s1++, s2++;
 976   if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
 977   if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
 978   return 0;
 979 }
 980
 981 WXDLLEXPORT wxChar * wxStrcpy(wxChar *dest, const wxChar *src)
 982 {
 983   wxChar *ret = dest;
 984   while ((*dest++ = *src++));
 985   return ret;
 986 }
 987
 988 WXDLLEXPORT wxChar * wxStrncat(wxChar *dest, const wxChar *src, size_t n)
 989 {
 990   wxChar *ret = dest;
 991   while (*dest) dest++;
 992   while (n && (*dest++ = *src++)) n--;
 993   return ret;
 994 }
 995
 996 WXDLLEXPORT int wxStrncmp(const wxChar *s1, const wxChar *s2, size_t n)
 997 {
 998   while (n && (*s1 == *s2) && *s1) n--, s1++, s2++;
 999   if (n) {
1000     if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
1001     if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
1002   }
1003   return 0;
1004 }
1005
1006 WXDLLEXPORT wxChar * wxStrncpy(wxChar *dest, const wxChar *src, size_t n)
1007 {
1008   wxChar *ret = dest;
1009   while (n && (*dest++ = *src++)) n--;
1010   while (n) *dest++=0, n--; // the docs specify padding with zeroes
1011   return ret;
1012 }
1013
1014 WXDLLEXPORT const wxChar * wxStrpbrk(const wxChar *s, const wxChar *accept)
1015 {
1016   while (*s && !wxStrchr(accept, *s))
1017       s++;
1018
1019   return *s ? s : NULL;
1020 }
1021
1022 WXDLLEXPORT const wxChar * wxStrrchr(const wxChar *s, wxChar c)
1023 {
1024     const wxChar *ret = NULL;
1025     do
1026     {
1027         if ( *s == c )
1028             ret = s;
1029         s++;
1030     }
1031     while ( *s );
1032
1033     return ret;
1034 }
1035
1036 WXDLLEXPORT size_t wxStrspn(const wxChar *s, const wxChar *accept)
1037 {
1038   size_t len = 0;
1039   while (wxStrchr(accept, *s++)) len++;
1040   return len;
1041 }
1042
1043 WXDLLEXPORT const wxChar *wxStrstr(const wxChar *haystack, const wxChar *needle)
1044 {
1045     wxCHECK_RET( needle, NULL, _T("NULL argument in wxStrstr") );
1046
1047     // VZ: this is not exactly the most efficient string search algorithm...
1048
1049     const size_t len = wxStrlen(needle);
1050
1051     while ( const wxChar *fnd = wxStrchr(haystack, *needle) )
1052     {
1053         if ( !wxStrncmp(fnd, needle, len) )
1054             return fnd;
1055
1056         haystack = fnd + 1;
1057     }
1058
1059     return NULL;
1060 }
1061
1062 WXDLLEXPORT double wxStrtod(const wxChar *nptr, wxChar **endptr)
1063 {
1064   const wxChar *start = nptr;
1065
1066   // FIXME: only correct for C locale
1067   while (wxIsspace(*nptr)) nptr++;
1068   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1069   while (wxIsdigit(*nptr)) nptr++;
1070   if (*nptr == wxT('.')) {
1071     nptr++;
1072     while (wxIsdigit(*nptr)) nptr++;
1073   }
1074   if (*nptr == wxT('E') || *nptr == wxT('e')) {
1075     nptr++;
1076     if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1077     while (wxIsdigit(*nptr)) nptr++;
1078   }
1079
1080   wxString data(nptr, nptr-start);
1081   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1082   char *rdat = wxMBSTRINGCAST dat;
1083   double ret = strtod(dat, &rdat);
1084
1085   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1086
1087   return ret;
1088 }
1089
1090 WXDLLEXPORT long int wxStrtol(const wxChar *nptr, wxChar **endptr, int base)
1091 {
1092   const wxChar *start = nptr;
1093
1094   // FIXME: only correct for C locale
1095   while (wxIsspace(*nptr)) nptr++;
1096   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1097   if (((base == 0) || (base == 16)) &&
1098       (nptr[0] == wxT('0') && nptr[1] == wxT('x'))) {
1099     nptr += 2;
1100     base = 16;
1101   }
1102   else if ((base == 0) && (nptr[0] == wxT('0'))) base = 8;
1103   else if (base == 0) base = 10;
1104
1105   while ((wxIsdigit(*nptr) && (*nptr - wxT('0') < base)) ||
1106          (wxIsalpha(*nptr) && (wxToupper(*nptr) - wxT('A') + 10 < base))) nptr++;
1107
1108   wxString data(nptr, nptr-start);
1109   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1110   char *rdat = wxMBSTRINGCAST dat;
1111   long int ret = strtol(dat, &rdat, base);
1112
1113   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1114
1115   return ret;
1116 }
1117 #endif // wxNEED_WX_STRING_H
1118
1119 #ifdef wxNEED_WX_STDIO_H
1120 WXDLLEXPORT FILE * wxFopen(const wxChar *path, const wxChar *mode)
1121 {
1122     char mode_buffer[10];
1123     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1124        mode_buffer[i] = (char) mode[i];
1125
1126     return fopen( wxConvFile.cWX2MB(path), mode_buffer );
1127 }
1128
1129 WXDLLEXPORT FILE * wxFreopen(const wxChar *path, const wxChar *mode, FILE *stream)
1130 {
1131     char mode_buffer[10];
1132     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1133        mode_buffer[i] = (char) mode[i];
1134
1135     return freopen( wxConvFile.cWX2MB(path), mode_buffer, stream );
1136 }
1137
1138 WXDLLEXPORT int wxRemove(const wxChar *path)
1139 {
1140     return remove( wxConvFile.cWX2MB(path) );
1141 }
1142
1143 WXDLLEXPORT int wxRename(const wxChar *oldpath, const wxChar *newpath)
1144 {
1145     return rename( wxConvFile.cWX2MB(oldpath), wxConvFile.cWX2MB(newpath) );
1146 }
1147 #endif
1148
1149 #ifndef wxAtof
1150 double   WXDLLEXPORT wxAtof(const wxChar *psz)
1151 {
1152   return atof(wxConvLocal.cWX2MB(psz));
1153 }
1154 #endif
1155
1156 #ifdef wxNEED_WX_STDLIB_H
1157 int      WXDLLEXPORT wxAtoi(const wxChar *psz)
1158 {
1159   return atoi(wxConvLocal.cWX2MB(psz));
1160 }
1161
1162 long     WXDLLEXPORT wxAtol(const wxChar *psz)
1163 {
1164   return atol(wxConvLocal.cWX2MB(psz));
1165 }
1166
1167 wxChar * WXDLLEXPORT wxGetenv(const wxChar *name)
1168 {
1169   static wxHashTable env;
1170
1171   // check if we already have stored the converted env var
1172   wxObject *data = env.Get(name);
1173   if (!data)
1174   {
1175     // nope, retrieve it,
1176 #if wxUSE_UNICODE
1177     wxCharBuffer buffer = wxConvLocal.cWX2MB(name);
1178     // printf( "buffer %s\n", (const char*) buffer );
1179     const char *val = getenv( (const char *)buffer );
1180 #else
1181     const char *val = getenv( name );
1182 #endif
1183
1184     if (!val) return (wxChar *)NULL;
1185     // printf( "home %s\n", val );
1186
1187     // convert it,
1188 #ifdef wxUSE_UNICODE
1189     data = (wxObject *)new wxString(val, wxConvLocal);
1190 #else
1191     data = (wxObject *)new wxString(val);
1192 #endif
1193
1194     // and store it
1195     env.Put(name, data);
1196   }
1197   // return converted env var
1198   return (wxChar *)((wxString *)data)->c_str();
1199 }
1200
1201 int WXDLLEXPORT wxSystem(const wxChar *psz)
1202 {
1203     return system(wxConvLocal.cWX2MB(psz));
1204 }
1205
1206 #endif
1207
1208 #ifdef wxNEED_WX_TIME_H
1209 WXDLLEXPORT size_t   wxStrftime(wxChar *s, size_t max, const wxChar *fmt, const struct tm *tm)
1210 {
1211     if (!max) return 0;
1212
1213     char *buf = (char *)malloc(max);
1214     size_t ret = strftime(buf, max, wxConvLocal.cWX2MB(fmt), tm);
1215     if (ret)
1216     {
1217         wxStrcpy(s, wxConvLocal.cMB2WX(buf));
1218         free(buf);
1219         return wxStrlen(s);
1220     }
1221     else
1222     {
1223         free(buf);
1224         *s = 0;
1225         return 0;
1226   }
1227 }
1228 #endif