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