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     // notice that we only translated the string if m_fmtOrig == NULL (as set
 570     // by CopyAllBefore()), otherwise we should simply use the original format
 571     operator const wxChar *() const
 572         { return m_fmtOrig ? m_fmtOrig : m_fmt.c_str(); }
 573
 574 private:
 575     // copy another character to the translated format: this function does the
 576     // copy if we are translating but doesn't do anything at all if we don't,
 577     // so we don't create the translated format string at all unless we really
 578     // need to (i.e. InsertFmtChar() is called)
 579     wxChar CopyFmtChar(wxChar ch)
 580     {
 581         if ( !m_fmtOrig )
 582         {
 583             // we're translating, do copy
 584             m_fmt += ch;
 585         }
 586         else
 587         {
 588             // simply increase the count which should be copied by
 589             // CopyAllBefore() later if needed
 590             m_nCopied++;
 591         }
 592
 593         return ch;
 594     }
 595
 596     // insert an extra character
 597     void InsertFmtChar(wxChar ch)
 598     {
 599         if ( m_fmtOrig )
 600         {
 601             // so far we haven't translated anything yet
 602             CopyAllBefore();
 603         }
 604
 605         m_fmt += ch;
 606     }
 607
 608     void CopyAllBefore()
 609     {
 610         wxASSERT_MSG( m_fmtOrig && m_fmt.empty(), _T("logic error") );
 611
 612         m_fmt = wxString(m_fmtOrig, m_nCopied);
 613
 614         // we won't need it any longer
 615         m_fmtOrig = NULL;
 616     }
 617
 618     static bool IsFlagChar(wxChar ch)
 619     {
 620         return ch == _T('-') || ch == _T('+') ||
 621                ch == _T('0') || ch == _T(' ') || ch == _T('#');
 622     }
 623
 624     void SkipDigits(const wxChar **ppc)
 625     {
 626         while ( **ppc >= _T('0') && **ppc <= _T('9') )
 627             CopyFmtChar(*(*ppc)++);
 628     }
 629
 630     // the translated format
 631     wxString m_fmt;
 632
 633     // the original format
 634     const wxChar *m_fmtOrig;
 635
 636     // the number of characters already copied
 637     size_t m_nCopied;
 638 };
 639
 640 wxFormatConverter::wxFormatConverter(const wxChar *format)
 641 {
 642     m_fmtOrig = format;
 643     m_nCopied = 0;
 644
 645     while ( *format )
 646     {
 647         if ( CopyFmtChar(*format++) == _T('%') )
 648         {
 649             // skip any flags
 650             while ( IsFlagChar(*format) )
 651                 CopyFmtChar(*format++);
 652
 653             // and possible width
 654             if ( *format == _T('*') )
 655                 CopyFmtChar(*format++);
 656             else
 657                 SkipDigits(&format);
 658
 659             // precision?
 660             if ( *format == _T('.') )
 661             {
 662                 SkipDigits(&format);
 663             }
 664
 665             // next we can have a size modifier
 666             enum
 667             {
 668                 Default,
 669                 Short,
 670                 Long
 671             } size;
 672
 673             switch ( *format )
 674             {
 675                 case _T('h'):
 676                     size = Short;
 677                     format++;
 678                     break;
 679
 680                 case _T('l'):
 681                     // "ll" has a different meaning!
 682                     if ( format[1] != _T('l') )
 683                     {
 684                         size = Long;
 685                         format++;
 686                         break;
 687                     }
 688                     //else: fall through
 689
 690                 default:
 691                     size = Default;
 692             }
 693
 694             // and finally we should have the type
 695             switch ( *format )
 696             {
 697                 case _T('C'):
 698                 case _T('S'):
 699                     // %C and %hC -> %c and %lC -> %lc
 700                     if ( size == Long )
 701                         CopyFmtChar(_T('l'));
 702
 703                     InsertFmtChar(*format++ == _T('C') ? _T('c') : _T('s'));
 704                     break;
 705
 706                 case _T('c'):
 707                 case _T('s'):
 708                     // %c -> %lc but %hc stays %hc and %lc is still %lc
 709                     switch ( size )
 710                     {
 711                         case Default:
 712                             InsertFmtChar(_T('l'));
 713                             break;
 714
 715                         case Short:
 716                             CopyFmtChar(_T('h'));
 717                             break;
 718
 719                         case Long:
 720                             ;
 721                     }
 722                     // fall through
 723
 724                 default:
 725                     // nothing special to do
 726                     CopyFmtChar(*format++);
 727             }
 728         }
 729     }
 730 }
 731
 732 #else // !wxNEED_PRINTF_CONVERSION
 733     // no conversion necessary
 734     #define wxFormatConverter(x) (x)
 735 #endif // wxNEED_PRINTF_CONVERSION/!wxNEED_PRINTF_CONVERSION
 736
 737 // ----------------------------------------------------------------------------
 738 // wxPrintf(), wxScanf() and relatives
 739 // ----------------------------------------------------------------------------
 740
 741 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
 742
 743 int wxScanf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
 744 {
 745     va_list argptr;
 746     va_start(argptr, format);
 747
 748     int ret = vwscanf(wxFormatConverter(format), argptr );
 749
 750     va_end(argptr);
 751
 752     return ret;
 753 }
 754
 755 int wxSscanf( const wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 756 {
 757     va_list argptr;
 758     va_start(argptr, format);
 759
 760     int ret = vswscanf( str, wxFormatConverter(format), argptr );
 761
 762     va_end(argptr);
 763
 764     return ret;
 765 }
 766
 767 int wxFscanf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 768 {
 769     va_list argptr;
 770     va_start(argptr, format);
 771
 772     int ret = vfwscanf(stream, wxFormatConverter(format), argptr);
 773
 774     va_end(argptr);
 775
 776     return ret;
 777 }
 778
 779 int wxPrintf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
 780 {
 781     va_list argptr;
 782     va_start(argptr, format);
 783
 784     int ret = vwprintf( wxFormatConverter(format), argptr );
 785
 786     va_end(argptr);
 787
 788     return ret;
 789 }
 790
 791 #ifndef wxSnprintf
 792 int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... ) ATTRIBUTE_PRINTF_4
 793 {
 794     va_list argptr;
 795     va_start(argptr, format);
 796
 797     int ret = vswprintf( str, size, wxFormatConverter(format), argptr );
 798
 799     va_end(argptr);
 800
 801     return ret;
 802 }
 803 #endif // wxSnprintf
 804
 805 int wxSprintf( wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 806 {
 807     va_list argptr;
 808     va_start(argptr, format);
 809
 810     // callers of wxSprintf() deserve what they get
 811     int ret = vswprintf( str, UINT_MAX, wxFormatConverter(format), argptr );
 812
 813     va_end(argptr);
 814
 815     return ret;
 816 }
 817
 818 int wxFprintf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 819 {
 820     va_list argptr;
 821     va_start( argptr, format );
 822
 823     int ret = vfwprintf( stream, wxFormatConverter(format), argptr );
 824
 825     va_end(argptr);
 826
 827     return ret;
 828 }
 829
 830 int wxVsscanf( const wxChar *str, const wxChar *format, va_list argptr )
 831 {
 832     return vswscanf( str, wxFormatConverter(format), argptr );
 833 }
 834
 835 int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr )
 836 {
 837     return vfwprintf( stream, wxFormatConverter(format), argptr );
 838 }
 839
 840 int wxVprintf( const wxChar *format, va_list argptr )
 841 {
 842     return vwprintf( wxFormatConverter(format), argptr );
 843 }
 844
 845 #ifndef wxVsnprintf
 846 int wxVsnprintf( wxChar *str, size_t size, const wxChar *format, va_list argptr )
 847 {
 848     return vswprintf( str, size, wxFormatConverter(format), argptr );
 849 }
 850 #endif // wxVsnprintf
 851
 852 int wxVsprintf( wxChar *str, const wxChar *format, va_list argptr )
 853 {
 854     // same as for wxSprintf()
 855     return vswprintf(str, UINT_MAX, wxFormatConverter(format), argptr);
 856 }
 857
 858 #endif // wxNEED_PRINTF_CONVERSION
 859
 860 // ----------------------------------------------------------------------------
 861 // ctype.h stuff (currently unused)
 862 // ----------------------------------------------------------------------------
 863
 864 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
 865 inline WORD wxMSW_ctype(wxChar ch)
 866 {
 867   WORD ret;
 868   GetStringTypeEx(LOCALE_USER_DEFAULT, CT_CTYPE1, &ch, 1, &ret);
 869   return ret;
 870 }
 871
 872 WXDLLEXPORT int wxIsalnum(wxChar ch) { return IsCharAlphaNumeric(ch); }
 873 WXDLLEXPORT int wxIsalpha(wxChar ch) { return IsCharAlpha(ch); }
 874 WXDLLEXPORT int wxIsctrl(wxChar ch) { return wxMSW_ctype(ch) & C1_CNTRL; }
 875 WXDLLEXPORT int wxIsdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_DIGIT; }
 876 WXDLLEXPORT int wxIsgraph(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_PUNCT|C1_ALPHA); }
 877 WXDLLEXPORT int wxIslower(wxChar ch) { return IsCharLower(ch); }
 878 WXDLLEXPORT int wxIsprint(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_SPACE|C1_PUNCT|C1_ALPHA); }
 879 WXDLLEXPORT int wxIspunct(wxChar ch) { return wxMSW_ctype(ch) & C1_PUNCT; }
 880 WXDLLEXPORT int wxIsspace(wxChar ch) { return wxMSW_ctype(ch) & C1_SPACE; }
 881 WXDLLEXPORT int wxIsupper(wxChar ch) { return IsCharUpper(ch); }
 882 WXDLLEXPORT int wxIsxdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_XDIGIT; }
 883 WXDLLEXPORT int wxTolower(wxChar ch) { return (wxChar)CharLower((LPTSTR)(ch)); }
 884 WXDLLEXPORT int wxToupper(wxChar ch) { return (wxChar)CharUpper((LPTSTR)(ch)); }
 885 #endif
 886
 887 #ifndef wxStrdup
 888 WXDLLEXPORT wxChar * wxStrdup(const wxChar *psz)
 889 {
 890   size_t size = (wxStrlen(psz) + 1) * sizeof(wxChar);
 891   wxChar *ret = (wxChar *) malloc(size);
 892   memcpy(ret, psz, size);
 893   return ret;
 894 }
 895 #endif
 896
 897 #ifndef wxStricmp
 898 int WXDLLEXPORT wxStricmp(const wxChar *psz1, const wxChar *psz2)
 899 {
 900   register wxChar c1, c2;
 901   do {
 902     c1 = wxTolower(*psz1++);
 903     c2 = wxTolower(*psz2++);
 904   } while ( c1 && (c1 == c2) );
 905   return c1 - c2;
 906 }
 907 #endif
 908
 909 #ifndef wxStricmp
 910 int WXDLLEXPORT wxStrnicmp(const wxChar *s1, const wxChar *s2, size_t n)
 911 {
 912   register wxChar c1, c2;
 913   while (n && ((c1 = wxTolower(*s1)) == (c2 = wxTolower(*s2)) ) && c1) n--, s1++, s2++;
 914   if (n) {
 915     if (c1 < c2) return -1;
 916     if (c1 > c2) return 1;
 917   }
 918   return 0;
 919 }
 920 #endif
 921
 922 #ifndef wxStrtok
 923 WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr)
 924 {
 925   if (!psz) psz = *save_ptr;
 926   psz += wxStrspn(psz, delim);
 927   if (!*psz) {
 928     *save_ptr = (wxChar *)NULL;
 929     return (wxChar *)NULL;
 930   }
 931   wxChar *ret = psz;
 932   psz = wxStrpbrk(psz, delim);
 933   if (!psz) *save_ptr = (wxChar*)NULL;
 934   else {
 935     *psz = wxT('\0');
 936     *save_ptr = psz + 1;
 937   }
 938   return ret;
 939 }
 940 #endif
 941
 942 #ifndef wxSetlocale
 943 WXDLLEXPORT wxWCharBuffer wxSetlocale(int category, const wxChar *locale)
 944 {
 945     char *localeOld = setlocale(category, wxConvLocal.cWX2MB(locale));
 946
 947     return wxWCharBuffer(wxConvLocal.cMB2WC(localeOld));
 948 }
 949 #endif
 950
 951 // ----------------------------------------------------------------------------
 952 // string.h functions
 953 // ----------------------------------------------------------------------------
 954
 955 #ifdef wxNEED_WX_STRING_H
 956 WXDLLEXPORT wxChar * wxStrcat(wxChar *dest, const wxChar *src)
 957 {
 958   wxChar *ret = dest;
 959   while (*dest) dest++;
 960   while ((*dest++ = *src++));
 961   return ret;
 962 }
 963
 964 WXDLLEXPORT const wxChar * wxStrchr(const wxChar *s, wxChar c)
 965 {
 966     // be careful here as the terminating NUL makes part of the string
 967     while ( *s != c )
 968     {
 969         if ( !*s++ )
 970             return NULL;
 971     }
 972
 973     return s;
 974 }
 975
 976 WXDLLEXPORT int wxStrcmp(const wxChar *s1, const wxChar *s2)
 977 {
 978   while ((*s1 == *s2) && *s1) s1++, s2++;
 979   if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
 980   if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
 981   return 0;
 982 }
 983
 984 WXDLLEXPORT wxChar * wxStrcpy(wxChar *dest, const wxChar *src)
 985 {
 986   wxChar *ret = dest;
 987   while ((*dest++ = *src++));
 988   return ret;
 989 }
 990
 991 WXDLLEXPORT wxChar * wxStrncat(wxChar *dest, const wxChar *src, size_t n)
 992 {
 993   wxChar *ret = dest;
 994   while (*dest) dest++;
 995   while (n && (*dest++ = *src++)) n--;
 996   return ret;
 997 }
 998
 999 WXDLLEXPORT int wxStrncmp(const wxChar *s1, const wxChar *s2, size_t n)
1000 {
1001   while (n && (*s1 == *s2) && *s1) n--, s1++, s2++;
1002   if (n) {
1003     if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
1004     if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
1005   }
1006   return 0;
1007 }
1008
1009 WXDLLEXPORT wxChar * wxStrncpy(wxChar *dest, const wxChar *src, size_t n)
1010 {
1011   wxChar *ret = dest;
1012   while (n && (*dest++ = *src++)) n--;
1013   while (n) *dest++=0, n--; // the docs specify padding with zeroes
1014   return ret;
1015 }
1016
1017 WXDLLEXPORT const wxChar * wxStrpbrk(const wxChar *s, const wxChar *accept)
1018 {
1019   while (*s && !wxStrchr(accept, *s))
1020       s++;
1021
1022   return *s ? s : NULL;
1023 }
1024
1025 WXDLLEXPORT const wxChar * wxStrrchr(const wxChar *s, wxChar c)
1026 {
1027     const wxChar *ret = NULL;
1028     do
1029     {
1030         if ( *s == c )
1031             ret = s;
1032         s++;
1033     }
1034     while ( *s );
1035
1036     return ret;
1037 }
1038
1039 WXDLLEXPORT size_t wxStrspn(const wxChar *s, const wxChar *accept)
1040 {
1041   size_t len = 0;
1042   while (wxStrchr(accept, *s++)) len++;
1043   return len;
1044 }
1045
1046 WXDLLEXPORT const wxChar *wxStrstr(const wxChar *haystack, const wxChar *needle)
1047 {
1048     wxCHECK_RET( needle, NULL, _T("NULL argument in wxStrstr") );
1049
1050     // VZ: this is not exactly the most efficient string search algorithm...
1051
1052     const size_t len = wxStrlen(needle);
1053
1054     while ( const wxChar *fnd = wxStrchr(haystack, *needle) )
1055     {
1056         if ( !wxStrncmp(fnd, needle, len) )
1057             return fnd;
1058
1059         haystack = fnd + 1;
1060     }
1061
1062     return NULL;
1063 }
1064
1065 WXDLLEXPORT double wxStrtod(const wxChar *nptr, wxChar **endptr)
1066 {
1067   const wxChar *start = nptr;
1068
1069   // FIXME: only correct for C locale
1070   while (wxIsspace(*nptr)) nptr++;
1071   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1072   while (wxIsdigit(*nptr)) nptr++;
1073   if (*nptr == wxT('.')) {
1074     nptr++;
1075     while (wxIsdigit(*nptr)) nptr++;
1076   }
1077   if (*nptr == wxT('E') || *nptr == wxT('e')) {
1078     nptr++;
1079     if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1080     while (wxIsdigit(*nptr)) nptr++;
1081   }
1082
1083   wxString data(nptr, nptr-start);
1084   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1085   char *rdat = wxMBSTRINGCAST dat;
1086   double ret = strtod(dat, &rdat);
1087
1088   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1089
1090   return ret;
1091 }
1092
1093 WXDLLEXPORT long int wxStrtol(const wxChar *nptr, wxChar **endptr, int base)
1094 {
1095   const wxChar *start = nptr;
1096
1097   // FIXME: only correct for C locale
1098   while (wxIsspace(*nptr)) nptr++;
1099   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1100   if (((base == 0) || (base == 16)) &&
1101       (nptr[0] == wxT('0') && nptr[1] == wxT('x'))) {
1102     nptr += 2;
1103     base = 16;
1104   }
1105   else if ((base == 0) && (nptr[0] == wxT('0'))) base = 8;
1106   else if (base == 0) base = 10;
1107
1108   while ((wxIsdigit(*nptr) && (*nptr - wxT('0') < base)) ||
1109          (wxIsalpha(*nptr) && (wxToupper(*nptr) - wxT('A') + 10 < base))) nptr++;
1110
1111   wxString data(nptr, nptr-start);
1112   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1113   char *rdat = wxMBSTRINGCAST dat;
1114   long int ret = strtol(dat, &rdat, base);
1115
1116   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1117
1118   return ret;
1119 }
1120 #endif // wxNEED_WX_STRING_H
1121
1122 #ifdef wxNEED_WX_STDIO_H
1123 WXDLLEXPORT FILE * wxFopen(const wxChar *path, const wxChar *mode)
1124 {
1125     char mode_buffer[10];
1126     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1127        mode_buffer[i] = (char) mode[i];
1128
1129     return fopen( wxConvFile.cWX2MB(path), mode_buffer );
1130 }
1131
1132 WXDLLEXPORT FILE * wxFreopen(const wxChar *path, const wxChar *mode, FILE *stream)
1133 {
1134     char mode_buffer[10];
1135     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1136        mode_buffer[i] = (char) mode[i];
1137
1138     return freopen( wxConvFile.cWX2MB(path), mode_buffer, stream );
1139 }
1140
1141 WXDLLEXPORT int wxRemove(const wxChar *path)
1142 {
1143     return remove( wxConvFile.cWX2MB(path) );
1144 }
1145
1146 WXDLLEXPORT int wxRename(const wxChar *oldpath, const wxChar *newpath)
1147 {
1148     return rename( wxConvFile.cWX2MB(oldpath), wxConvFile.cWX2MB(newpath) );
1149 }
1150 #endif
1151
1152 #ifndef wxAtof
1153 double   WXDLLEXPORT wxAtof(const wxChar *psz)
1154 {
1155   return atof(wxConvLocal.cWX2MB(psz));
1156 }
1157 #endif
1158
1159 #ifdef wxNEED_WX_STDLIB_H
1160 int      WXDLLEXPORT wxAtoi(const wxChar *psz)
1161 {
1162   return atoi(wxConvLocal.cWX2MB(psz));
1163 }
1164
1165 long     WXDLLEXPORT wxAtol(const wxChar *psz)
1166 {
1167   return atol(wxConvLocal.cWX2MB(psz));
1168 }
1169
1170 wxChar * WXDLLEXPORT wxGetenv(const wxChar *name)
1171 {
1172   static wxHashTable env;
1173
1174   // check if we already have stored the converted env var
1175   wxObject *data = env.Get(name);
1176   if (!data)
1177   {
1178     // nope, retrieve it,
1179 #if wxUSE_UNICODE
1180     wxCharBuffer buffer = wxConvLocal.cWX2MB(name);
1181     // printf( "buffer %s\n", (const char*) buffer );
1182     const char *val = getenv( (const char *)buffer );
1183 #else
1184     const char *val = getenv( name );
1185 #endif
1186
1187     if (!val) return (wxChar *)NULL;
1188     // printf( "home %s\n", val );
1189
1190     // convert it,
1191 #ifdef wxUSE_UNICODE
1192     data = (wxObject *)new wxString(val, wxConvLocal);
1193 #else
1194     data = (wxObject *)new wxString(val);
1195 #endif
1196
1197     // and store it
1198     env.Put(name, data);
1199   }
1200   // return converted env var
1201   return (wxChar *)((wxString *)data)->c_str();
1202 }
1203
1204 int WXDLLEXPORT wxSystem(const wxChar *psz)
1205 {
1206     return system(wxConvLocal.cWX2MB(psz));
1207 }
1208
1209 #endif
1210
1211 #ifdef wxNEED_WX_TIME_H
1212 WXDLLEXPORT size_t   wxStrftime(wxChar *s, size_t max, const wxChar *fmt, const struct tm *tm)
1213 {
1214     if (!max) return 0;
1215
1216     char *buf = (char *)malloc(max);
1217     size_t ret = strftime(buf, max, wxConvLocal.cWX2MB(fmt), tm);
1218     if (ret)
1219     {
1220         wxStrcpy(s, wxConvLocal.cMB2WX(buf));
1221         free(buf);
1222         return wxStrlen(s);
1223     }
1224     else
1225     {
1226         free(buf);
1227         *s = 0;
1228         return 0;
1229   }
1230 }
1231 #endif