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                 { \
 167                     for ( const wxChar *p = s; *p; p++ ) \
 168                     { \
 169                         APPEND_CH(*p); \
 170                     } \
 171                 }
 172
 173                 switch (format[++n]) {
 174                     case wxT('\0'):
 175                         APPEND_CH(_T('\0'));
 176
 177                         done = TRUE;
 178                         break;
 179
 180                     case wxT('%'):
 181                         APPEND_CH(_T('%'));
 182                         done = TRUE;
 183                         break;
 184
 185                     case wxT('#'):
 186                     case wxT('0'):
 187                     case wxT(' '):
 188                     case wxT('+'):
 189                     case wxT('\''):
 190                         CHECK_PREC
 191                         s_szFlags[flagofs++] = format[n];
 192                         break;
 193
 194                     case wxT('-'):
 195                         CHECK_PREC
 196                         adj_left = TRUE;
 197                         s_szFlags[flagofs++] = format[n];
 198                         break;
 199
 200                     case wxT('.'):
 201                         CHECK_PREC
 202                             in_prec = TRUE;
 203                         prec_dot = FALSE;
 204                         max_width = 0;
 205                         // dot will be auto-added to s_szFlags if non-negative number follows
 206                         break;
 207
 208                     case wxT('h'):
 209                         ilen = -1;
 210                         CHECK_PREC
 211                         s_szFlags[flagofs++] = format[n];
 212                         break;
 213
 214                     case wxT('l'):
 215                         ilen = 1;
 216                         CHECK_PREC
 217                         s_szFlags[flagofs++] = format[n];
 218                         break;
 219
 220                     case wxT('q'):
 221                     case wxT('L'):
 222                         ilen = 2;
 223                         CHECK_PREC
 224                         s_szFlags[flagofs++] = format[n];
 225                         break;
 226
 227                     case wxT('Z'):
 228                         ilen = 3;
 229                         CHECK_PREC
 230                         s_szFlags[flagofs++] = format[n];
 231                         break;
 232
 233                     case wxT('*'):
 234                         {
 235                             int len = va_arg(argptr, int);
 236                             if (in_prec) {
 237                                 if (len<0) break;
 238                                 CHECK_PREC
 239                                     max_width = len;
 240                             } else {
 241                                 if (len<0) {
 242                                     adj_left = !adj_left;
 243                                     s_szFlags[flagofs++] = '-';
 244                                     len = -len;
 245                                 }
 246                                 min_width = len;
 247                             }
 248                             flagofs += ::sprintf(s_szFlags+flagofs,"%d",len);
 249                         }
 250                         break;
 251
 252                     case wxT('1'): case wxT('2'): case wxT('3'):
 253                     case wxT('4'): case wxT('5'): case wxT('6'):
 254                     case wxT('7'): case wxT('8'): case wxT('9'):
 255                         {
 256                             int len = 0;
 257                             CHECK_PREC
 258                                 while ((format[n]>=wxT('0')) && (format[n]<=wxT('9'))) {
 259                                     s_szFlags[flagofs++] = format[n];
 260                                     len = len*10 + (format[n] - wxT('0'));
 261                                     n++;
 262                                 }
 263                             if (in_prec) max_width = len;
 264                             else min_width = len;
 265                             n--; // the main loop pre-increments n again
 266                         }
 267                         break;
 268
 269                     case wxT('d'):
 270                     case wxT('i'):
 271                     case wxT('o'):
 272                     case wxT('u'):
 273                     case wxT('x'):
 274                     case wxT('X'):
 275                         CHECK_PREC
 276                         s_szFlags[flagofs++] = format[n];
 277                         s_szFlags[flagofs] = '\0';
 278                         if (ilen == 0 ) {
 279                             int val = va_arg(argptr, int);
 280                             ::sprintf(szScratch, s_szFlags, val);
 281                         }
 282                         else if (ilen == -1) {
 283                             // NB: 'short int' value passed through '...'
 284                             //      is promoted to 'int'
 285                             short int val = (short int) va_arg(argptr, int);
 286                             ::sprintf(szScratch, s_szFlags, val);
 287                         }
 288                         else if (ilen == 1) {
 289                             long int val = va_arg(argptr, long int);
 290                             ::sprintf(szScratch, s_szFlags, val);
 291                         }
 292                         else if (ilen == 2) {
 293 #if SIZEOF_LONG_LONG
 294                             long long int val = va_arg(argptr, long long int);
 295                             ::sprintf(szScratch, s_szFlags, val);
 296 #else
 297                             long int val = va_arg(argptr, long int);
 298                             ::sprintf(szScratch, s_szFlags, val);
 299 #endif
 300                         }
 301                         else if (ilen == 3) {
 302                             size_t val = va_arg(argptr, size_t);
 303                             ::sprintf(szScratch, s_szFlags, val);
 304                         }
 305
 306                         APPEND_STR(wxConvLibc.cMB2WX(szScratch));
 307
 308                         done = TRUE;
 309                         break;
 310
 311                     case wxT('e'):
 312                     case wxT('E'):
 313                     case wxT('f'):
 314                     case wxT('g'):
 315                     case wxT('G'):
 316                         CHECK_PREC
 317                         s_szFlags[flagofs++] = format[n];
 318                         s_szFlags[flagofs] = '\0';
 319                         if (ilen == 2) {
 320                             long double val = va_arg(argptr, long double);
 321                             ::sprintf(szScratch, s_szFlags, val);
 322                         } else {
 323                             double val = va_arg(argptr, double);
 324                             ::sprintf(szScratch, s_szFlags, val);
 325                         }
 326
 327                         APPEND_STR(wxConvLibc.cMB2WX(szScratch));
 328
 329                         done = TRUE;
 330                         break;
 331
 332                     case wxT('p'):
 333                         {
 334                             void *val = va_arg(argptr, void *);
 335                             CHECK_PREC
 336                                 s_szFlags[flagofs++] = format[n];
 337                             s_szFlags[flagofs] = '\0';
 338                             ::sprintf(szScratch, s_szFlags, val);
 339
 340                             APPEND_STR(wxConvLibc.cMB2WX(szScratch));
 341
 342                             done = TRUE;
 343                         }
 344                         break;
 345
 346                     case wxT('c'):
 347                         {
 348                             wxChar val = va_arg(argptr, int);
 349                             // we don't need to honor padding here, do we?
 350                             APPEND_CH(val);
 351
 352                             done = TRUE;
 353                         }
 354                         break;
 355
 356                     case wxT('s'):
 357                         if (ilen == -1) {
 358                             // wx extension: we'll let %hs mean non-Unicode strings
 359                             char *val = va_arg(argptr, char *);
 360 #if wxUSE_UNICODE
 361                             // ASCII->Unicode constructor handles max_width right
 362                             wxString s(val, wxConvLibc, max_width);
 363 #else
 364                             size_t len = wxSTRING_MAXLEN;
 365                             if (val) {
 366                                 for (len = 0; val[len] && (len<max_width); len++);
 367                             } else val = wxT("(null)");
 368                             wxString s(val, len);
 369 #endif
 370                             if (s.Len() < min_width)
 371                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 372
 373                             APPEND_STR(s);
 374                         } else {
 375                             wxChar *val = va_arg(argptr, wxChar *);
 376                             size_t len = wxSTRING_MAXLEN;
 377                             if (val) {
 378                                 for (len = 0; val[len] && (len<max_width); len++);
 379                             } else val = wxT("(null)");
 380                             wxString s(val, len);
 381                             if (s.Len() < min_width)
 382                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 383
 384                             APPEND_STR(s);
 385                         }
 386                         done = TRUE;
 387                         break;
 388
 389                     case wxT('n'):
 390                         if (ilen == 0) {
 391                             int *val = va_arg(argptr, int *);
 392                             *val = lenCur;
 393                         }
 394                         else if (ilen == -1) {
 395                             short int *val = va_arg(argptr, short int *);
 396                             *val = lenCur;
 397                         }
 398                         else if (ilen >= 1) {
 399                             long int *val = va_arg(argptr, long int *);
 400                             *val = lenCur;
 401                         }
 402                         done = TRUE;
 403                         break;
 404
 405                     default:
 406                         if (wxIsalpha(format[n]))
 407                             // probably some flag not taken care of here yet
 408                             s_szFlags[flagofs++] = format[n];
 409                         else {
 410                             // bad format
 411                             APPEND_CH(_T('%')); // just to pass the glibc tst-printf.c
 412                             n--;
 413                             done = TRUE;
 414                         }
 415                         break;
 416                 }
 417             } while (!done);
 418         }
 419         else
 420         {
 421             APPEND_CH(format[n]);
 422         }
 423     }
 424
 425     return lenCur;
 426 }
 427
 428 #undef APPEND_CH
 429 #undef APPEND_STR
 430 #undef CHECK_PREC
 431
 432 #endif // !wxVsnprintfA
 433
 434 #if !defined(wxSnprintf_)
 435 int WXDLLEXPORT wxSnprintf_(wxChar *buf, size_t len, const wxChar *format, ...)
 436 {
 437     va_list argptr;
 438     va_start(argptr, format);
 439
 440     int iLen = wxVsnprintf_(buf, len, format, argptr);
 441
 442     va_end(argptr);
 443
 444     return iLen;
 445 }
 446 #endif // wxSnprintf_
 447
 448 // ----------------------------------------------------------------------------
 449 // implement the standard IO functions for wide char if libc doesn't have them
 450 // ----------------------------------------------------------------------------
 451
 452 #ifdef wxNEED_FPUTWC
 453
 454 int wxFputs(const wchar_t *ws, FILE *stream)
 455 {
 456     // counting the number of wide characters written isn't worth the trouble,
 457     // simply distinguish between ok and error
 458     return fputs(wxConvLibc.cWC2MB(ws), stream) == -1 ? -1 : 0;
 459 }
 460
 461 int /* not wint_t */ wxPutc(wchar_t wc, FILE *stream)
 462 {
 463     wchar_t ws[2] = { wc, L'\0' };
 464
 465     return wxFputs(ws, stream);
 466 }
 467
 468 #endif // wxNEED_FPUTWC
 469
 470 // NB: we only implement va_list functions here, the ones taking ... are
 471 //     defined below for wxNEED_PRINTF_CONVERSION case anyhow and we reuse
 472 //     the definitions there to avoid duplicating them here
 473 #ifdef wxNEED_WPRINTF
 474
 475 // TODO: implement the scanf() functions
 476 int vwscanf(const wchar_t *format, va_list argptr)
 477 {
 478     wxFAIL_MSG( _T("TODO") );
 479
 480     return -1;
 481 }
 482
 483 int vswscanf(const wchar_t *ws, const wchar_t *format, va_list argptr)
 484 {
 485     wxFAIL_MSG( _T("TODO") );
 486
 487     return -1;
 488 }
 489
 490 int vfwscanf(FILE *stream, const wchar_t *format, va_list argptr)
 491 {
 492     wxFAIL_MSG( _T("TODO") );
 493
 494     return -1;
 495 }
 496
 497 #define vswprintf wxVsnprintf_
 498
 499 int vfwprintf(FILE *stream, const wchar_t *format, va_list argptr)
 500 {
 501     wxString s;
 502     int rc = s.PrintfV(format, argptr);
 503
 504     if ( rc != -1 )
 505     {
 506         // we can't do much better without Unicode support in libc...
 507         if ( fprintf(stream, s.mb_str()) == -1 )
 508             return -1;
 509     }
 510
 511     return rc;
 512 }
 513
 514 int vwprintf(const wchar_t *format, va_list argptr)
 515 {
 516     return wxVfprintf(stdout, format, argptr);
 517 }
 518
 519 #endif // wxNEED_WPRINTF
 520
 521 #ifdef wxNEED_PRINTF_CONVERSION
 522
 523 // ----------------------------------------------------------------------------
 524 // wxFormatConverter: class doing the "%s" -> "%ls" conversion
 525 // ----------------------------------------------------------------------------
 526
 527 /*
 528    Here are the gory details. We want to follow the Windows/MS conventions,
 529    that is to have
 530
 531    In ANSI mode:
 532
 533    format specifier         results in
 534    -----------------------------------
 535    %c, %hc, %hC             char
 536    %lc, %C, %lC             wchar_t
 537
 538    In Unicode mode:
 539
 540    format specifier         results in
 541    -----------------------------------
 542    %hc, %C, %hC             char
 543    %c, %lc, %lC             wchar_t
 544
 545
 546    while on POSIX systems we have %C identical to %lc and %c always means char
 547    (in any mode) while %lc always means wchar_t,
 548
 549    So to use native functions in order to get our semantics we must do the
 550    following translations in Unicode mode (nothing to do in ANSI mode):
 551
 552    wxWindows specifier      POSIX specifier
 553    ----------------------------------------
 554
 555    %hc, %C, %hC             %c
 556    %c                       %lc
 557
 558
 559    And, of course, the same should be done for %s as well.
 560 */
 561
 562 class wxFormatConverter
 563 {
 564 public:
 565     wxFormatConverter(const wxChar *format);
 566
 567     // notice that we only translated the string if m_fmtOrig == NULL (as set
 568     // by CopyAllBefore()), otherwise we should simply use the original format
 569     operator const wxChar *() const
 570         { return m_fmtOrig ? m_fmtOrig : m_fmt.c_str(); }
 571
 572 private:
 573     // copy another character to the translated format: this function does the
 574     // copy if we are translating but doesn't do anything at all if we don't,
 575     // so we don't create the translated format string at all unless we really
 576     // need to (i.e. InsertFmtChar() is called)
 577     wxChar CopyFmtChar(wxChar ch)
 578     {
 579         if ( !m_fmtOrig )
 580         {
 581             // we're translating, do copy
 582             m_fmt += ch;
 583         }
 584         else
 585         {
 586             // simply increase the count which should be copied by
 587             // CopyAllBefore() later if needed
 588             m_nCopied++;
 589         }
 590
 591         return ch;
 592     }
 593
 594     // insert an extra character
 595     void InsertFmtChar(wxChar ch)
 596     {
 597         if ( m_fmtOrig )
 598         {
 599             // so far we haven't translated anything yet
 600             CopyAllBefore();
 601         }
 602
 603         m_fmt += ch;
 604     }
 605
 606     void CopyAllBefore()
 607     {
 608         wxASSERT_MSG( m_fmtOrig && m_fmt.empty(), _T("logic error") );
 609
 610         m_fmt = wxString(m_fmtOrig, m_nCopied);
 611
 612         // we won't need it any longer
 613         m_fmtOrig = NULL;
 614     }
 615
 616     static bool IsFlagChar(wxChar ch)
 617     {
 618         return ch == _T('-') || ch == _T('+') ||
 619                ch == _T('0') || ch == _T(' ') || ch == _T('#');
 620     }
 621
 622     void SkipDigits(const wxChar **ppc)
 623     {
 624         while ( **ppc >= _T('0') && **ppc <= _T('9') )
 625             CopyFmtChar(*(*ppc)++);
 626     }
 627
 628     // the translated format
 629     wxString m_fmt;
 630
 631     // the original format
 632     const wxChar *m_fmtOrig;
 633
 634     // the number of characters already copied
 635     size_t m_nCopied;
 636 };
 637
 638 wxFormatConverter::wxFormatConverter(const wxChar *format)
 639 {
 640     m_fmtOrig = format;
 641     m_nCopied = 0;
 642
 643     while ( *format )
 644     {
 645         if ( CopyFmtChar(*format++) == _T('%') )
 646         {
 647             // skip any flags
 648             while ( IsFlagChar(*format) )
 649                 CopyFmtChar(*format++);
 650
 651             // and possible width
 652             if ( *format == _T('*') )
 653                 CopyFmtChar(*format++);
 654             else
 655                 SkipDigits(&format);
 656
 657             // precision?
 658             if ( *format == _T('.') )
 659             {
 660                 SkipDigits(&format);
 661             }
 662
 663             // next we can have a size modifier
 664             enum
 665             {
 666                 Default,
 667                 Short,
 668                 Long
 669             } size;
 670
 671             switch ( *format )
 672             {
 673                 case _T('h'):
 674                     size = Short;
 675                     format++;
 676                     break;
 677
 678                 case _T('l'):
 679                     // "ll" has a different meaning!
 680                     if ( format[1] != _T('l') )
 681                     {
 682                         size = Long;
 683                         format++;
 684                         break;
 685                     }
 686                     //else: fall through
 687
 688                 default:
 689                     size = Default;
 690             }
 691
 692             // and finally we should have the type
 693             switch ( *format )
 694             {
 695                 case _T('C'):
 696                 case _T('S'):
 697                     // %C and %hC -> %c and %lC -> %lc
 698                     if ( size == Long )
 699                         CopyFmtChar(_T('l'));
 700
 701                     InsertFmtChar(*format++ == _T('C') ? _T('c') : _T('s'));
 702                     break;
 703
 704                 case _T('c'):
 705                 case _T('s'):
 706                     // %c -> %lc but %hc stays %hc and %lc is still %lc
 707                     switch ( size )
 708                     {
 709                         case Default:
 710                             InsertFmtChar(_T('l'));
 711                             break;
 712
 713                         case Short:
 714                             CopyFmtChar(_T('h'));
 715                             break;
 716
 717                         case Long:
 718                             ;
 719                     }
 720                     // fall through
 721
 722                 default:
 723                     // nothing special to do
 724                     CopyFmtChar(*format++);
 725             }
 726         }
 727     }
 728 }
 729
 730 #else // !wxNEED_PRINTF_CONVERSION
 731     // no conversion necessary
 732     #define wxFormatConverter(x) (x)
 733 #endif // wxNEED_PRINTF_CONVERSION/!wxNEED_PRINTF_CONVERSION
 734
 735 // ----------------------------------------------------------------------------
 736 // wxPrintf(), wxScanf() and relatives
 737 // ----------------------------------------------------------------------------
 738
 739 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
 740
 741 int wxScanf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
 742 {
 743     va_list argptr;
 744     va_start(argptr, format);
 745
 746     int ret = vwscanf(wxFormatConverter(format), argptr );
 747
 748     va_end(argptr);
 749
 750     return ret;
 751 }
 752
 753 int wxSscanf( const wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 754 {
 755     va_list argptr;
 756     va_start(argptr, format);
 757
 758     int ret = vswscanf( str, wxFormatConverter(format), argptr );
 759
 760     va_end(argptr);
 761
 762     return ret;
 763 }
 764
 765 int wxFscanf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 766 {
 767     va_list argptr;
 768     va_start(argptr, format);
 769
 770     int ret = vfwscanf(stream, wxFormatConverter(format), argptr);
 771
 772     va_end(argptr);
 773
 774     return ret;
 775 }
 776
 777 int wxPrintf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
 778 {
 779     va_list argptr;
 780     va_start(argptr, format);
 781
 782     int ret = vwprintf( wxFormatConverter(format), argptr );
 783
 784     va_end(argptr);
 785
 786     return ret;
 787 }
 788
 789 #ifndef wxSnprintf
 790 int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... ) ATTRIBUTE_PRINTF_4
 791 {
 792     va_list argptr;
 793     va_start(argptr, format);
 794
 795     int ret = vswprintf( str, size, wxFormatConverter(format), argptr );
 796
 797     va_end(argptr);
 798
 799     return ret;
 800 }
 801 #endif // wxSnprintf
 802
 803 int wxSprintf( wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 804 {
 805     va_list argptr;
 806     va_start(argptr, format);
 807
 808     // callers of wxSprintf() deserve what they get
 809     int ret = vswprintf( str, UINT_MAX, wxFormatConverter(format), argptr );
 810
 811     va_end(argptr);
 812
 813     return ret;
 814 }
 815
 816 int wxFprintf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 817 {
 818     va_list argptr;
 819     va_start( argptr, format );
 820
 821     int ret = vfwprintf( stream, wxFormatConverter(format), argptr );
 822
 823     va_end(argptr);
 824
 825     return ret;
 826 }
 827
 828 int wxVsscanf( const wxChar *str, const wxChar *format, va_list argptr )
 829 {
 830     return vswscanf( str, wxFormatConverter(format), argptr );
 831 }
 832
 833 int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr )
 834 {
 835     return vfwprintf( stream, wxFormatConverter(format), argptr );
 836 }
 837
 838 int wxVprintf( const wxChar *format, va_list argptr )
 839 {
 840     return vwprintf( wxFormatConverter(format), argptr );
 841 }
 842
 843 #ifndef wxVsnprintf
 844 int wxVsnprintf( wxChar *str, size_t size, const wxChar *format, va_list argptr )
 845 {
 846     return vswprintf( str, size, wxFormatConverter(format), argptr );
 847 }
 848 #endif // wxVsnprintf
 849
 850 int wxVsprintf( wxChar *str, const wxChar *format, va_list argptr )
 851 {
 852     // same as for wxSprintf()
 853     return vswprintf(str, UINT_MAX, wxFormatConverter(format), argptr);
 854 }
 855
 856 #endif // wxNEED_PRINTF_CONVERSION
 857
 858 // ----------------------------------------------------------------------------
 859 // ctype.h stuff (currently unused)
 860 // ----------------------------------------------------------------------------
 861
 862 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
 863 inline WORD wxMSW_ctype(wxChar ch)
 864 {
 865   WORD ret;
 866   GetStringTypeEx(LOCALE_USER_DEFAULT, CT_CTYPE1, &ch, 1, &ret);
 867   return ret;
 868 }
 869
 870 WXDLLEXPORT int wxIsalnum(wxChar ch) { return IsCharAlphaNumeric(ch); }
 871 WXDLLEXPORT int wxIsalpha(wxChar ch) { return IsCharAlpha(ch); }
 872 WXDLLEXPORT int wxIsctrl(wxChar ch) { return wxMSW_ctype(ch) & C1_CNTRL; }
 873 WXDLLEXPORT int wxIsdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_DIGIT; }
 874 WXDLLEXPORT int wxIsgraph(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_PUNCT|C1_ALPHA); }
 875 WXDLLEXPORT int wxIslower(wxChar ch) { return IsCharLower(ch); }
 876 WXDLLEXPORT int wxIsprint(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_SPACE|C1_PUNCT|C1_ALPHA); }
 877 WXDLLEXPORT int wxIspunct(wxChar ch) { return wxMSW_ctype(ch) & C1_PUNCT; }
 878 WXDLLEXPORT int wxIsspace(wxChar ch) { return wxMSW_ctype(ch) & C1_SPACE; }
 879 WXDLLEXPORT int wxIsupper(wxChar ch) { return IsCharUpper(ch); }
 880 WXDLLEXPORT int wxIsxdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_XDIGIT; }
 881 WXDLLEXPORT int wxTolower(wxChar ch) { return (wxChar)CharLower((LPTSTR)(ch)); }
 882 WXDLLEXPORT int wxToupper(wxChar ch) { return (wxChar)CharUpper((LPTSTR)(ch)); }
 883 #endif
 884
 885 #ifndef wxStrdup
 886 WXDLLEXPORT wxChar * wxStrdup(const wxChar *psz)
 887 {
 888   size_t size = (wxStrlen(psz) + 1) * sizeof(wxChar);
 889   wxChar *ret = (wxChar *) malloc(size);
 890   memcpy(ret, psz, size);
 891   return ret;
 892 }
 893 #endif
 894
 895 #ifndef wxStricmp
 896 int WXDLLEXPORT wxStricmp(const wxChar *psz1, const wxChar *psz2)
 897 {
 898   register wxChar c1, c2;
 899   do {
 900     c1 = wxTolower(*psz1++);
 901     c2 = wxTolower(*psz2++);
 902   } while ( c1 && (c1 == c2) );
 903   return c1 - c2;
 904 }
 905 #endif
 906
 907 #ifndef wxStricmp
 908 int WXDLLEXPORT wxStrnicmp(const wxChar *s1, const wxChar *s2, size_t n)
 909 {
 910   register wxChar c1, c2;
 911   while (n && ((c1 = wxTolower(*s1)) == (c2 = wxTolower(*s2)) ) && c1) n--, s1++, s2++;
 912   if (n) {
 913     if (c1 < c2) return -1;
 914     if (c1 > c2) return 1;
 915   }
 916   return 0;
 917 }
 918 #endif
 919
 920 #ifndef wxStrtok
 921 WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr)
 922 {
 923   if (!psz) psz = *save_ptr;
 924   psz += wxStrspn(psz, delim);
 925   if (!*psz) {
 926     *save_ptr = (wxChar *)NULL;
 927     return (wxChar *)NULL;
 928   }
 929   wxChar *ret = psz;
 930   psz = wxStrpbrk(psz, delim);
 931   if (!psz) *save_ptr = (wxChar*)NULL;
 932   else {
 933     *psz = wxT('\0');
 934     *save_ptr = psz + 1;
 935   }
 936   return ret;
 937 }
 938 #endif
 939
 940 #ifndef wxSetlocale
 941 WXDLLEXPORT wxWCharBuffer wxSetlocale(int category, const wxChar *locale)
 942 {
 943     char *localeOld = setlocale(category, wxConvLocal.cWX2MB(locale));
 944
 945     return wxWCharBuffer(wxConvLocal.cMB2WC(localeOld));
 946 }
 947 #endif
 948
 949 // ----------------------------------------------------------------------------
 950 // string.h functions
 951 // ----------------------------------------------------------------------------
 952
 953 #ifdef wxNEED_WX_STRING_H
 954 WXDLLEXPORT wxChar * wxStrcat(wxChar *dest, const wxChar *src)
 955 {
 956   wxChar *ret = dest;
 957   while (*dest) dest++;
 958   while ((*dest++ = *src++));
 959   return ret;
 960 }
 961
 962 WXDLLEXPORT const wxChar * wxStrchr(const wxChar *s, wxChar c)
 963 {
 964     // be careful here as the terminating NUL makes part of the string
 965     while ( *s != c )
 966     {
 967         if ( !*s++ )
 968             return NULL;
 969     }
 970
 971     return s;
 972 }
 973
 974 WXDLLEXPORT int wxStrcmp(const wxChar *s1, const wxChar *s2)
 975 {
 976   while ((*s1 == *s2) && *s1) s1++, s2++;
 977   if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
 978   if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
 979   return 0;
 980 }
 981
 982 WXDLLEXPORT wxChar * wxStrcpy(wxChar *dest, const wxChar *src)
 983 {
 984   wxChar *ret = dest;
 985   while ((*dest++ = *src++));
 986   return ret;
 987 }
 988
 989 WXDLLEXPORT wxChar * wxStrncat(wxChar *dest, const wxChar *src, size_t n)
 990 {
 991   wxChar *ret = dest;
 992   while (*dest) dest++;
 993   while (n && (*dest++ = *src++)) n--;
 994   return ret;
 995 }
 996
 997 WXDLLEXPORT int wxStrncmp(const wxChar *s1, const wxChar *s2, size_t n)
 998 {
 999   while (n && (*s1 == *s2) && *s1) n--, s1++, s2++;
1000   if (n) {
1001     if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
1002     if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
1003   }
1004   return 0;
1005 }
1006
1007 WXDLLEXPORT wxChar * wxStrncpy(wxChar *dest, const wxChar *src, size_t n)
1008 {
1009   wxChar *ret = dest;
1010   while (n && (*dest++ = *src++)) n--;
1011   while (n) *dest++=0, n--; // the docs specify padding with zeroes
1012   return ret;
1013 }
1014
1015 WXDLLEXPORT const wxChar * wxStrpbrk(const wxChar *s, const wxChar *accept)
1016 {
1017   while (*s && !wxStrchr(accept, *s))
1018       s++;
1019
1020   return *s ? s : NULL;
1021 }
1022
1023 WXDLLEXPORT const wxChar * wxStrrchr(const wxChar *s, wxChar c)
1024 {
1025     const wxChar *ret = NULL;
1026     do
1027     {
1028         if ( *s == c )
1029             ret = s;
1030         s++;
1031     }
1032     while ( *s );
1033
1034     return ret;
1035 }
1036
1037 WXDLLEXPORT size_t wxStrspn(const wxChar *s, const wxChar *accept)
1038 {
1039   size_t len = 0;
1040   while (wxStrchr(accept, *s++)) len++;
1041   return len;
1042 }
1043
1044 WXDLLEXPORT const wxChar *wxStrstr(const wxChar *haystack, const wxChar *needle)
1045 {
1046     wxCHECK_RET( needle, NULL, _T("NULL argument in wxStrstr") );
1047
1048     // VZ: this is not exactly the most efficient string search algorithm...
1049
1050     const size_t len = wxStrlen(needle);
1051
1052     while ( const wxChar *fnd = wxStrchr(haystack, *needle) )
1053     {
1054         if ( !wxStrncmp(fnd, needle, len) )
1055             return fnd;
1056
1057         haystack = fnd + 1;
1058     }
1059
1060     return NULL;
1061 }
1062
1063 WXDLLEXPORT double wxStrtod(const wxChar *nptr, wxChar **endptr)
1064 {
1065   const wxChar *start = nptr;
1066
1067   // FIXME: only correct for C locale
1068   while (wxIsspace(*nptr)) nptr++;
1069   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1070   while (wxIsdigit(*nptr)) nptr++;
1071   if (*nptr == wxT('.')) {
1072     nptr++;
1073     while (wxIsdigit(*nptr)) nptr++;
1074   }
1075   if (*nptr == wxT('E') || *nptr == wxT('e')) {
1076     nptr++;
1077     if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1078     while (wxIsdigit(*nptr)) nptr++;
1079   }
1080
1081   wxString data(nptr, nptr-start);
1082   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1083   char *rdat = wxMBSTRINGCAST dat;
1084   double ret = strtod(dat, &rdat);
1085
1086   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1087
1088   return ret;
1089 }
1090
1091 WXDLLEXPORT long int wxStrtol(const wxChar *nptr, wxChar **endptr, int base)
1092 {
1093   const wxChar *start = nptr;
1094
1095   // FIXME: only correct for C locale
1096   while (wxIsspace(*nptr)) nptr++;
1097   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1098   if (((base == 0) || (base == 16)) &&
1099       (nptr[0] == wxT('0') && nptr[1] == wxT('x'))) {
1100     nptr += 2;
1101     base = 16;
1102   }
1103   else if ((base == 0) && (nptr[0] == wxT('0'))) base = 8;
1104   else if (base == 0) base = 10;
1105
1106   while ((wxIsdigit(*nptr) && (*nptr - wxT('0') < base)) ||
1107          (wxIsalpha(*nptr) && (wxToupper(*nptr) - wxT('A') + 10 < base))) nptr++;
1108
1109   wxString data(nptr, nptr-start);
1110   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1111   char *rdat = wxMBSTRINGCAST dat;
1112   long int ret = strtol(dat, &rdat, base);
1113
1114   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1115
1116   return ret;
1117 }
1118 #endif // wxNEED_WX_STRING_H
1119
1120 #ifdef wxNEED_WX_STDIO_H
1121 WXDLLEXPORT FILE * wxFopen(const wxChar *path, const wxChar *mode)
1122 {
1123     char mode_buffer[10];
1124     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1125        mode_buffer[i] = (char) mode[i];
1126
1127     return fopen( wxConvFile.cWX2MB(path), mode_buffer );
1128 }
1129
1130 WXDLLEXPORT FILE * wxFreopen(const wxChar *path, const wxChar *mode, FILE *stream)
1131 {
1132     char mode_buffer[10];
1133     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1134        mode_buffer[i] = (char) mode[i];
1135
1136     return freopen( wxConvFile.cWX2MB(path), mode_buffer, stream );
1137 }
1138
1139 WXDLLEXPORT int wxRemove(const wxChar *path)
1140 {
1141     return remove( wxConvFile.cWX2MB(path) );
1142 }
1143
1144 WXDLLEXPORT int wxRename(const wxChar *oldpath, const wxChar *newpath)
1145 {
1146     return rename( wxConvFile.cWX2MB(oldpath), wxConvFile.cWX2MB(newpath) );
1147 }
1148 #endif
1149
1150 #ifndef wxAtof
1151 double   WXDLLEXPORT wxAtof(const wxChar *psz)
1152 {
1153   return atof(wxConvLocal.cWX2MB(psz));
1154 }
1155 #endif
1156
1157 #ifdef wxNEED_WX_STDLIB_H
1158 int      WXDLLEXPORT wxAtoi(const wxChar *psz)
1159 {
1160   return atoi(wxConvLocal.cWX2MB(psz));
1161 }
1162
1163 long     WXDLLEXPORT wxAtol(const wxChar *psz)
1164 {
1165   return atol(wxConvLocal.cWX2MB(psz));
1166 }
1167
1168 wxChar * WXDLLEXPORT wxGetenv(const wxChar *name)
1169 {
1170   static wxHashTable env;
1171
1172   // check if we already have stored the converted env var
1173   wxObject *data = env.Get(name);
1174   if (!data)
1175   {
1176     // nope, retrieve it,
1177 #if wxUSE_UNICODE
1178     wxCharBuffer buffer = wxConvLocal.cWX2MB(name);
1179     // printf( "buffer %s\n", (const char*) buffer );
1180     const char *val = getenv( (const char *)buffer );
1181 #else
1182     const char *val = getenv( name );
1183 #endif
1184
1185     if (!val) return (wxChar *)NULL;
1186     // printf( "home %s\n", val );
1187
1188     // convert it,
1189 #ifdef wxUSE_UNICODE
1190     data = (wxObject *)new wxString(val, wxConvLocal);
1191 #else
1192     data = (wxObject *)new wxString(val);
1193 #endif
1194
1195     // and store it
1196     env.Put(name, data);
1197   }
1198   // return converted env var
1199   return (wxChar *)((wxString *)data)->c_str();
1200 }
1201
1202 int WXDLLEXPORT wxSystem(const wxChar *psz)
1203 {
1204     return system(wxConvLocal.cWX2MB(psz));
1205 }
1206
1207 #endif
1208
1209 #ifdef wxNEED_WX_TIME_H
1210 WXDLLEXPORT size_t   wxStrftime(wxChar *s, size_t max, const wxChar *fmt, const struct tm *tm)
1211 {
1212     if (!max) return 0;
1213
1214     char *buf = (char *)malloc(max);
1215     size_t ret = strftime(buf, max, wxConvLocal.cWX2MB(fmt), tm);
1216     if (ret)
1217     {
1218         wxStrcpy(s, wxConvLocal.cMB2WX(buf));
1219         free(buf);
1220         return wxStrlen(s);
1221     }
1222     else
1223     {
1224         free(buf);
1225         *s = 0;
1226         return 0;
1227   }
1228 }
1229 #endif