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 licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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
  34 #ifndef __WXWINCE__
  35 #include <time.h>
  36 #include <locale.h>
  37 #else
  38 #include "wx/msw/wince/time.h"
  39 #endif
  40
  41 #ifndef WX_PRECOMP
  42   #include "wx/defs.h"
  43   #include "wx/wxchar.h"
  44   #include "wx/string.h"
  45   #include "wx/hash.h"
  46 #endif
  47
  48 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
  49   #include <windef.h>
  50   #include <winbase.h>
  51   #include <winnls.h>
  52   #include <winnt.h>
  53 #endif
  54
  55 #if defined(__MWERKS__) && __MSL__ >= 0x6000
  56 using namespace std ;
  57 #endif
  58
  59 #ifdef __WXMAC__
  60     #include "wx/mac/private.h"
  61 #endif
  62
  63 #if wxUSE_WCHAR_T
  64 size_t WXDLLEXPORT wxMB2WC(wchar_t *buf, const char *psz, size_t n)
  65 {
  66   // assume that we have mbsrtowcs() too if we have wcsrtombs()
  67 #if HAVE_WCSRTOMBS
  68   mbstate_t mbstate;
  69   memset(&mbstate, 0, sizeof(mbstate_t));
  70 #endif
  71
  72   if (buf) {
  73     if (!n || !*psz) {
  74       if (n) *buf = wxT('\0');
  75       return 0;
  76     }
  77 #ifdef HAVE_WCSRTOMBS
  78     return mbsrtowcs(buf, &psz, n, &mbstate);
  79 #else
  80     return mbstowcs(buf, psz, n);
  81 #endif
  82   }
  83
  84 #ifdef HAVE_WCSRTOMBS
  85   return mbsrtowcs((wchar_t *) NULL, &psz, 0, &mbstate);
  86 #else
  87   return mbstowcs((wchar_t *) NULL, psz, 0);
  88 #endif
  89 }
  90
  91 size_t WXDLLEXPORT wxWC2MB(char *buf, const wchar_t *pwz, size_t n)
  92 {
  93 #if HAVE_WCSRTOMBS
  94   mbstate_t mbstate;
  95   memset(&mbstate, 0, sizeof(mbstate_t));
  96 #endif
  97
  98   if (buf) {
  99     if (!n || !*pwz) {
 100       // glibc2.1 chokes on null input
 101       if (n) *buf = '\0';
 102       return 0;
 103     }
 104 #if HAVE_WCSRTOMBS
 105     return wcsrtombs(buf, &pwz, n, &mbstate);
 106 #else
 107     return wcstombs(buf, pwz, n);
 108 #endif
 109   }
 110
 111 #if HAVE_WCSRTOMBS
 112   return wcsrtombs((char *) NULL, &pwz, 0, &mbstate);
 113 #else
 114   return wcstombs((char *) NULL, pwz, 0);
 115 #endif
 116 }
 117 #endif // wxUSE_WCHAR_T
 118
 119 bool WXDLLEXPORT wxOKlibc()
 120 {
 121 #if wxUSE_WCHAR_T && defined(__UNIX__) && defined(__GLIBC__) && !defined(__WINE__)
 122   // glibc 2.0 uses UTF-8 even when it shouldn't
 123   wchar_t res = 0;
 124   if ((MB_CUR_MAX == 2) &&
 125       (wxMB2WC(&res, "\xdd\xa5", 1) == 1) &&
 126       (res==0x765)) {
 127     // this is UTF-8 allright, check whether that's what we want
 128     char *cur_locale = setlocale(LC_CTYPE, NULL);
 129     if ((strlen(cur_locale) < 4) ||
 130             (strcasecmp(cur_locale + strlen(cur_locale) - 4, "utf8")) ||
 131             (strcasecmp(cur_locale + strlen(cur_locale) - 5, "utf-8"))) {
 132       // nope, don't use libc conversion
 133       return FALSE;
 134     }
 135   }
 136 #endif
 137   return TRUE;
 138 }
 139
 140 // ============================================================================
 141 // printf() functions business
 142 // ============================================================================
 143
 144 // special test mode: define all functions below even if we don't really need
 145 // them to be able to test them
 146 #ifdef wxTEST_PRINTF
 147     #undef wxFprintf
 148     #undef wxPrintf
 149     #undef wxSprintf
 150     #undef wxVfprintf
 151     #undef wxVsprintf
 152     #undef wxVprintf
 153     #undef wxVsnprintf_
 154     #undef wxSnprintf_
 155
 156     #define wxNEED_WPRINTF
 157
 158     int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr );
 159 #endif
 160
 161 // ----------------------------------------------------------------------------
 162 // implement [v]snprintf() if the system doesn't provide a safe one
 163 // ----------------------------------------------------------------------------
 164
 165 #if !defined(wxVsnprintf_)
 166 int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
 167                              const wxChar *format, va_list argptr)
 168 {
 169     // buffer to avoid dynamic memory allocation each time for small strings
 170     char szScratch[1024];
 171
 172     // number of characters in the buffer so far, must be less than lenMax
 173     size_t lenCur = 0;
 174
 175     for ( size_t n = 0; ; n++ )
 176     {
 177         const wxChar chCur = format[n];
 178
 179         if ( chCur == wxT('%') )
 180         {
 181             static char s_szFlags[256] = "%";
 182             size_t flagofs = 1;
 183             bool adj_left = FALSE,
 184                  in_prec = FALSE,
 185                  prec_dot = FALSE,
 186                  done = FALSE;
 187             int ilen = 0;
 188             size_t min_width = 0,
 189                    max_width = wxSTRING_MAXLEN;
 190             do
 191             {
 192
 193 #define CHECK_PREC \
 194                 if (in_prec && !prec_dot) \
 195                 { \
 196                     s_szFlags[flagofs++] = '.'; \
 197                     prec_dot = TRUE; \
 198                 }
 199
 200 #define APPEND_CH(ch) \
 201                 if ( lenCur == lenMax ) \
 202                     return -1; \
 203                 \
 204                 buf[lenCur++] = ch
 205
 206 #define APPEND_STR(s) \
 207                 { \
 208                     for ( const wxChar *p = s; *p; p++ ) \
 209                     { \
 210                         APPEND_CH(*p); \
 211                     } \
 212                 }
 213
 214                 // what follows '%'?
 215                 const wxChar ch = format[++n];
 216                 switch ( ch )
 217                 {
 218                     case wxT('\0'):
 219                         APPEND_CH(_T('\0'));
 220
 221                         done = TRUE;
 222                         break;
 223
 224                     case wxT('%'):
 225                         APPEND_CH(_T('%'));
 226                         done = TRUE;
 227                         break;
 228
 229                     case wxT('#'):
 230                     case wxT('0'):
 231                     case wxT(' '):
 232                     case wxT('+'):
 233                     case wxT('\''):
 234                         CHECK_PREC
 235                         s_szFlags[flagofs++] = ch;
 236                         break;
 237
 238                     case wxT('-'):
 239                         CHECK_PREC
 240                         adj_left = TRUE;
 241                         s_szFlags[flagofs++] = ch;
 242                         break;
 243
 244                     case wxT('.'):
 245                         CHECK_PREC
 246                         in_prec = TRUE;
 247                         prec_dot = FALSE;
 248                         max_width = 0;
 249                         // dot will be auto-added to s_szFlags if non-negative
 250                         // number follows
 251                         break;
 252
 253                     case wxT('h'):
 254                         ilen = -1;
 255                         CHECK_PREC
 256                         s_szFlags[flagofs++] = ch;
 257                         break;
 258
 259                     case wxT('l'):
 260                         ilen = 1;
 261                         CHECK_PREC
 262                         s_szFlags[flagofs++] = ch;
 263                         break;
 264
 265                     case wxT('q'):
 266                     case wxT('L'):
 267                         ilen = 2;
 268                         CHECK_PREC
 269                         s_szFlags[flagofs++] = ch;
 270                         break;
 271
 272                     case wxT('Z'):
 273                         ilen = 3;
 274                         CHECK_PREC
 275                         s_szFlags[flagofs++] = ch;
 276                         break;
 277
 278                     case wxT('*'):
 279                         {
 280                             int len = va_arg(argptr, int);
 281                             if (in_prec)
 282                             {
 283                                 if (len<0) break;
 284                                 CHECK_PREC
 285                                     max_width = len;
 286                             }
 287                             else
 288                             {
 289                                 if (len<0)
 290                                 {
 291                                     adj_left = !adj_left;
 292                                     s_szFlags[flagofs++] = '-';
 293                                     len = -len;
 294                                 }
 295                                 min_width = len;
 296                             }
 297                             flagofs += ::sprintf(s_szFlags+flagofs,"%d",len);
 298                         }
 299                         break;
 300
 301                     case wxT('1'): case wxT('2'): case wxT('3'):
 302                     case wxT('4'): case wxT('5'): case wxT('6'):
 303                     case wxT('7'): case wxT('8'): case wxT('9'):
 304                         {
 305                             int len = 0;
 306                             CHECK_PREC
 307                             while ( (format[n] >= wxT('0')) &&
 308                                     (format[n] <= wxT('9')) )
 309                             {
 310                                 s_szFlags[flagofs++] = format[n];
 311                                 len = len*10 + (format[n] - wxT('0'));
 312                                 n++;
 313                             }
 314
 315                             if (in_prec)
 316                                 max_width = len;
 317                             else
 318                                 min_width = len;
 319
 320                             n--; // the main loop pre-increments n again
 321                         }
 322                         break;
 323
 324                     case wxT('d'):
 325                     case wxT('i'):
 326                     case wxT('o'):
 327                     case wxT('u'):
 328                     case wxT('x'):
 329                     case wxT('X'):
 330                         CHECK_PREC
 331                         s_szFlags[flagofs++] = ch;
 332                         s_szFlags[flagofs] = '\0';
 333                         if (ilen == 0 )
 334                         {
 335                             int val = va_arg(argptr, int);
 336                             ::sprintf(szScratch, s_szFlags, val);
 337                         }
 338                         else if (ilen == -1)
 339                         {
 340                             // NB: 'short int' value passed through '...'
 341                             //      is promoted to 'int', so we have to get
 342                             //      an int from stack even if we need a short
 343                             short int val = (short int) va_arg(argptr, int);
 344                             ::sprintf(szScratch, s_szFlags, val);
 345                         }
 346                         else if (ilen == 1)
 347                         {
 348                             long int val = va_arg(argptr, long int);
 349                             ::sprintf(szScratch, s_szFlags, val);
 350                         }
 351                         else if (ilen == 2)
 352                         {
 353 #if SIZEOF_LONG_LONG
 354                             long long int val = va_arg(argptr, long long int);
 355                             ::sprintf(szScratch, s_szFlags, val);
 356 #else // !long long
 357                             long int val = va_arg(argptr, long int);
 358                             ::sprintf(szScratch, s_szFlags, val);
 359 #endif // long long/!long long
 360                         }
 361                         else if (ilen == 3)
 362                         {
 363                             size_t val = va_arg(argptr, size_t);
 364                             ::sprintf(szScratch, s_szFlags, val);
 365                         }
 366
 367                         {
 368                             const wxMB2WXbuf tmp =
 369                                 wxConvLibc.cMB2WX(szScratch);
 370                             APPEND_STR(tmp);
 371                         }
 372
 373                         done = TRUE;
 374                         break;
 375
 376                     case wxT('e'):
 377                     case wxT('E'):
 378                     case wxT('f'):
 379                     case wxT('g'):
 380                     case wxT('G'):
 381                         CHECK_PREC
 382                         s_szFlags[flagofs++] = ch;
 383                         s_szFlags[flagofs] = '\0';
 384                         if (ilen == 2)
 385                         {
 386                             long double val = va_arg(argptr, long double);
 387                             ::sprintf(szScratch, s_szFlags, val);
 388                         }
 389                         else
 390                         {
 391                             double val = va_arg(argptr, double);
 392                             ::sprintf(szScratch, s_szFlags, val);
 393                         }
 394
 395                         {
 396                             const wxMB2WXbuf tmp =
 397                                 wxConvLibc.cMB2WX(szScratch);
 398                             APPEND_STR(tmp);
 399                         }
 400
 401                         done = TRUE;
 402                         break;
 403
 404                     case wxT('p'):
 405                         {
 406                             void *val = va_arg(argptr, void *);
 407                             CHECK_PREC
 408                             s_szFlags[flagofs++] = ch;
 409                             s_szFlags[flagofs] = '\0';
 410                             ::sprintf(szScratch, s_szFlags, val);
 411
 412                             const wxMB2WXbuf tmp =
 413                                 wxConvLibc.cMB2WX(szScratch);
 414                             APPEND_STR(tmp);
 415
 416                             done = TRUE;
 417                         }
 418                         break;
 419
 420                     case wxT('c'):
 421                         {
 422                             wxChar val = va_arg(argptr, int);
 423                             // we don't need to honor padding here, do we?
 424                             APPEND_CH(val);
 425
 426                             done = TRUE;
 427                         }
 428                         break;
 429
 430                     case wxT('s'):
 431                         if (ilen == -1)
 432                         {
 433                             // wx extension: we'll let %hs mean non-Unicode
 434                             // strings
 435                             char *val = va_arg(argptr, char *);
 436 #if wxUSE_UNICODE
 437                             // ASCII->Unicode constructor handles max_width
 438                             // right
 439                             wxString s(val, wxConvLibc, max_width);
 440 #else
 441                             size_t len = wxSTRING_MAXLEN;
 442                             if (val)
 443                             {
 444                                 for ( len = 0;
 445                                       val[len] && (len < max_width);
 446                                       len++ )
 447                                     ;
 448                             }
 449                             else
 450                                 val = wxT("(null)");
 451                             wxString s(val, len);
 452 #endif
 453                             if (s.Len() < min_width)
 454                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 455
 456                             APPEND_STR(s);
 457                         }
 458                         else
 459                         {
 460                             wxChar *val = va_arg(argptr, wxChar *);
 461                             size_t len = wxSTRING_MAXLEN;
 462                             if (val)
 463                             {
 464                                 for ( len = 0;
 465                                       val[len] && (len < max_width);
 466                                       len++ )
 467                                     ;
 468                             }
 469                             else
 470                                 val = wxT("(null)");
 471
 472                             wxString s(val, len);
 473                             if (s.Len() < min_width)
 474                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 475
 476                             APPEND_STR(s);
 477                         }
 478                         done = TRUE;
 479                         break;
 480
 481                     case wxT('n'):
 482                         if (ilen == 0)
 483                         {
 484                             int *val = va_arg(argptr, int *);
 485                             *val = lenCur;
 486                         }
 487                         else if (ilen == -1)
 488                         {
 489                             short int *val = va_arg(argptr, short int *);
 490                             *val = lenCur;
 491                         }
 492                         else if (ilen >= 1)
 493                         {
 494                             long int *val = va_arg(argptr, long int *);
 495                             *val = lenCur;
 496                         }
 497                         done = TRUE;
 498                         break;
 499
 500                     default:
 501                         // bad format, leave unchanged
 502                         APPEND_CH(_T('%'));
 503                         APPEND_CH(ch);
 504                         done = TRUE;
 505                         break;
 506                 }
 507             }
 508             while (!done);
 509         }
 510         else
 511         {
 512             APPEND_CH(chCur);
 513         }
 514
 515         // terminating NUL?
 516         if ( !chCur )
 517             break;
 518     }
 519
 520     return lenCur;
 521 }
 522
 523 #undef APPEND_CH
 524 #undef APPEND_STR
 525 #undef CHECK_PREC
 526
 527 #endif // !wxVsnprintfA
 528
 529 #if !defined(wxSnprintf_)
 530 int WXDLLEXPORT wxSnprintf_(wxChar *buf, size_t len, const wxChar *format, ...)
 531 {
 532     va_list argptr;
 533     va_start(argptr, format);
 534
 535     int iLen = wxVsnprintf_(buf, len, format, argptr);
 536
 537     va_end(argptr);
 538
 539     return iLen;
 540 }
 541 #endif // wxSnprintf_
 542
 543 // ----------------------------------------------------------------------------
 544 // implement the standard IO functions for wide char if libc doesn't have them
 545 // ----------------------------------------------------------------------------
 546
 547 #ifdef wxNEED_FPUTWC
 548
 549 int wxFputs(const wchar_t *ws, FILE *stream)
 550 {
 551     // counting the number of wide characters written isn't worth the trouble,
 552     // simply distinguish between ok and error
 553     return fputs(wxConvLibc.cWC2MB(ws), stream) == -1 ? -1 : 0;
 554 }
 555
 556 int /* not wint_t */ wxPutc(wchar_t wc, FILE *stream)
 557 {
 558     wchar_t ws[2] = { wc, L'\0' };
 559
 560     return wxFputs(ws, stream);
 561 }
 562
 563 #endif // wxNEED_FPUTWC
 564
 565 // NB: we only implement va_list functions here, the ones taking ... are
 566 //     defined below for wxNEED_PRINTF_CONVERSION case anyhow and we reuse
 567 //     the definitions there to avoid duplicating them here
 568 #ifdef wxNEED_WPRINTF
 569
 570 // TODO: implement the scanf() functions
 571 int vwscanf(const wxChar *format, va_list argptr)
 572 {
 573     wxFAIL_MSG( _T("TODO") );
 574
 575     return -1;
 576 }
 577
 578 int vswscanf(const wxChar *ws, const wxChar *format, va_list argptr)
 579 {
 580     wxFAIL_MSG( _T("TODO") );
 581
 582     return -1;
 583 }
 584
 585 int vfwscanf(FILE *stream, const wxChar *format, va_list argptr)
 586 {
 587     wxFAIL_MSG( _T("TODO") );
 588
 589     return -1;
 590 }
 591
 592 #define vswprintf wxVsnprintf_
 593
 594 int vfwprintf(FILE *stream, const wxChar *format, va_list argptr)
 595 {
 596     wxString s;
 597     int rc = s.PrintfV(format, argptr);
 598
 599     if ( rc != -1 )
 600     {
 601         // we can't do much better without Unicode support in libc...
 602         if ( fprintf(stream, "%s",
 603 #if wxUSE_UNICODE
 604                      s.mb_str().data()
 605 #else
 606                      s.c_str()
 607 #endif
 608                  ) == -1 )
 609             return -1;
 610     }
 611
 612     return rc;
 613 }
 614
 615 int vwprintf(const wxChar *format, va_list argptr)
 616 {
 617     return wxVfprintf(stdout, format, argptr);
 618 }
 619
 620 #endif // wxNEED_WPRINTF
 621
 622 #ifdef wxNEED_PRINTF_CONVERSION
 623
 624 // ----------------------------------------------------------------------------
 625 // wxFormatConverter: class doing the "%s" -> "%ls" conversion
 626 // ----------------------------------------------------------------------------
 627
 628 /*
 629    Here are the gory details. We want to follow the Windows/MS conventions,
 630    that is to have
 631
 632    In ANSI mode:
 633
 634    format specifier         results in
 635    -----------------------------------
 636    %c, %hc, %hC             char
 637    %lc, %C, %lC             wchar_t
 638
 639    In Unicode mode:
 640
 641    format specifier         results in
 642    -----------------------------------
 643    %hc, %C, %hC             char
 644    %c, %lc, %lC             wchar_t
 645
 646
 647    while on POSIX systems we have %C identical to %lc and %c always means char
 648    (in any mode) while %lc always means wchar_t,
 649
 650    So to use native functions in order to get our semantics we must do the
 651    following translations in Unicode mode (nothing to do in ANSI mode):
 652
 653    wxWindows specifier      POSIX specifier
 654    ----------------------------------------
 655
 656    %hc, %C, %hC             %c
 657    %c                       %lc
 658
 659
 660    And, of course, the same should be done for %s as well.
 661 */
 662
 663 class wxFormatConverter
 664 {
 665 public:
 666     wxFormatConverter(const wxChar *format);
 667
 668     // notice that we only translated the string if m_fmtOrig == NULL (as set
 669     // by CopyAllBefore()), otherwise we should simply use the original format
 670     operator const wxChar *() const
 671         { return m_fmtOrig ? m_fmtOrig : m_fmt.c_str(); }
 672
 673 private:
 674     // copy another character to the translated format: this function does the
 675     // copy if we are translating but doesn't do anything at all if we don't,
 676     // so we don't create the translated format string at all unless we really
 677     // need to (i.e. InsertFmtChar() is called)
 678     wxChar CopyFmtChar(wxChar ch)
 679     {
 680         if ( !m_fmtOrig )
 681         {
 682             // we're translating, do copy
 683             m_fmt += ch;
 684         }
 685         else
 686         {
 687             // simply increase the count which should be copied by
 688             // CopyAllBefore() later if needed
 689             m_nCopied++;
 690         }
 691
 692         return ch;
 693     }
 694
 695     // insert an extra character
 696     void InsertFmtChar(wxChar ch)
 697     {
 698         if ( m_fmtOrig )
 699         {
 700             // so far we haven't translated anything yet
 701             CopyAllBefore();
 702         }
 703
 704         m_fmt += ch;
 705     }
 706
 707     void CopyAllBefore()
 708     {
 709         wxASSERT_MSG( m_fmtOrig && m_fmt.empty(), _T("logic error") );
 710
 711         m_fmt = wxString(m_fmtOrig, m_nCopied);
 712
 713         // we won't need it any longer
 714         m_fmtOrig = NULL;
 715     }
 716
 717     static bool IsFlagChar(wxChar ch)
 718     {
 719         return ch == _T('-') || ch == _T('+') ||
 720                ch == _T('0') || ch == _T(' ') || ch == _T('#');
 721     }
 722
 723     void SkipDigits(const wxChar **ppc)
 724     {
 725         while ( **ppc >= _T('0') && **ppc <= _T('9') )
 726             CopyFmtChar(*(*ppc)++);
 727     }
 728
 729     // the translated format
 730     wxString m_fmt;
 731
 732     // the original format
 733     const wxChar *m_fmtOrig;
 734
 735     // the number of characters already copied
 736     size_t m_nCopied;
 737 };
 738
 739 wxFormatConverter::wxFormatConverter(const wxChar *format)
 740 {
 741     m_fmtOrig = format;
 742     m_nCopied = 0;
 743
 744     while ( *format )
 745     {
 746         if ( CopyFmtChar(*format++) == _T('%') )
 747         {
 748             // skip any flags
 749             while ( IsFlagChar(*format) )
 750                 CopyFmtChar(*format++);
 751
 752             // and possible width
 753             if ( *format == _T('*') )
 754                 CopyFmtChar(*format++);
 755             else
 756                 SkipDigits(&format);
 757
 758             // precision?
 759             if ( *format == _T('.') )
 760             {
 761                 CopyFmtChar(*format++);
 762                 if ( *format == _T('*') )
 763                     CopyFmtChar(*format++);
 764                 else
 765                     SkipDigits(&format);
 766             }
 767
 768             // next we can have a size modifier
 769             enum
 770             {
 771                 Default,
 772                 Short,
 773                 Long
 774             } size;
 775
 776             switch ( *format )
 777             {
 778                 case _T('h'):
 779                     size = Short;
 780                     format++;
 781                     break;
 782
 783                 case _T('l'):
 784                     // "ll" has a different meaning!
 785                     if ( format[1] != _T('l') )
 786                     {
 787                         size = Long;
 788                         format++;
 789                         break;
 790                     }
 791                     //else: fall through
 792
 793                 default:
 794                     size = Default;
 795             }
 796
 797             // and finally we should have the type
 798             switch ( *format )
 799             {
 800                 case _T('C'):
 801                 case _T('S'):
 802                     // %C and %hC -> %c and %lC -> %lc
 803                     if ( size == Long )
 804                         CopyFmtChar(_T('l'));
 805
 806                     InsertFmtChar(*format++ == _T('C') ? _T('c') : _T('s'));
 807                     break;
 808
 809                 case _T('c'):
 810                 case _T('s'):
 811                     // %c -> %lc but %hc stays %hc and %lc is still %lc
 812                     if ( size == Default)
 813                         InsertFmtChar(_T('l'));
 814                     // fall through
 815
 816                 default:
 817                     // nothing special to do
 818                     if ( size != Default )
 819                         CopyFmtChar(*(format - 1));
 820                     CopyFmtChar(*format++);
 821             }
 822         }
 823     }
 824 }
 825
 826 #else // !wxNEED_PRINTF_CONVERSION
 827     // no conversion necessary
 828     #define wxFormatConverter(x) (x)
 829 #endif // wxNEED_PRINTF_CONVERSION/!wxNEED_PRINTF_CONVERSION
 830
 831 #ifdef __WXDEBUG__
 832 // For testing the format converter
 833 wxString wxConvertFormat(const wxChar *format)
 834 {
 835     return wxString(wxFormatConverter(format));
 836 }
 837 #endif
 838
 839 // ----------------------------------------------------------------------------
 840 // wxPrintf(), wxScanf() and relatives
 841 // ----------------------------------------------------------------------------
 842
 843 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
 844
 845 int wxScanf( const wxChar *format, ... )
 846 {
 847     va_list argptr;
 848     va_start(argptr, format);
 849
 850     int ret = vwscanf(wxFormatConverter(format), argptr );
 851
 852     va_end(argptr);
 853
 854     return ret;
 855 }
 856
 857 int wxSscanf( const wxChar *str, const wxChar *format, ... )
 858 {
 859     va_list argptr;
 860     va_start(argptr, format);
 861
 862     int ret = vswscanf( str, wxFormatConverter(format), argptr );
 863
 864     va_end(argptr);
 865
 866     return ret;
 867 }
 868
 869 int wxFscanf( FILE *stream, const wxChar *format, ... )
 870 {
 871     va_list argptr;
 872     va_start(argptr, format);
 873     int ret = vfwscanf(stream, wxFormatConverter(format), argptr);
 874
 875     va_end(argptr);
 876
 877     return ret;
 878 }
 879
 880 int wxPrintf( const wxChar *format, ... )
 881 {
 882     va_list argptr;
 883     va_start(argptr, format);
 884
 885     int ret = vwprintf( wxFormatConverter(format), argptr );
 886
 887     va_end(argptr);
 888
 889     return ret;
 890 }
 891
 892 #ifndef wxSnprintf
 893 int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... )
 894 {
 895     va_list argptr;
 896     va_start(argptr, format);
 897
 898     int ret = vswprintf( str, size, wxFormatConverter(format), argptr );
 899
 900     va_end(argptr);
 901
 902     return ret;
 903 }
 904 #endif // wxSnprintf
 905
 906 int wxSprintf( wxChar *str, const wxChar *format, ... )
 907 {
 908     va_list argptr;
 909     va_start(argptr, format);
 910
 911     // callers of wxSprintf() deserve what they get
 912     int ret = vswprintf( str, UINT_MAX, wxFormatConverter(format), argptr );
 913
 914     va_end(argptr);
 915
 916     return ret;
 917 }
 918
 919 int wxFprintf( FILE *stream, const wxChar *format, ... )
 920 {
 921     va_list argptr;
 922     va_start( argptr, format );
 923
 924     int ret = vfwprintf( stream, wxFormatConverter(format), argptr );
 925
 926     va_end(argptr);
 927
 928     return ret;
 929 }
 930
 931 int wxVsscanf( const wxChar *str, const wxChar *format, va_list argptr )
 932 {
 933     return vswscanf( str, wxFormatConverter(format), argptr );
 934 }
 935
 936 int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr )
 937 {
 938     return vfwprintf( stream, wxFormatConverter(format), argptr );
 939 }
 940
 941 int wxVprintf( const wxChar *format, va_list argptr )
 942 {
 943     return vwprintf( wxFormatConverter(format), argptr );
 944 }
 945
 946 #ifndef wxVsnprintf
 947 int wxVsnprintf( wxChar *str, size_t size, const wxChar *format, va_list argptr )
 948 {
 949     return vswprintf( str, size, wxFormatConverter(format), argptr );
 950 }
 951 #endif // wxVsnprintf
 952
 953 int wxVsprintf( wxChar *str, const wxChar *format, va_list argptr )
 954 {
 955     // same as for wxSprintf()
 956     return vswprintf(str, UINT_MAX, wxFormatConverter(format), argptr);
 957 }
 958
 959 #endif // wxNEED_PRINTF_CONVERSION
 960
 961 #if wxUSE_WCHAR_T
 962
 963 // ----------------------------------------------------------------------------
 964 // ctype.h stuff (currently unused)
 965 // ----------------------------------------------------------------------------
 966
 967 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
 968 inline WORD wxMSW_ctype(wxChar ch)
 969 {
 970   WORD ret;
 971   GetStringTypeEx(LOCALE_USER_DEFAULT, CT_CTYPE1, &ch, 1, &ret);
 972   return ret;
 973 }
 974
 975 WXDLLEXPORT int wxIsalnum(wxChar ch) { return IsCharAlphaNumeric(ch); }
 976 WXDLLEXPORT int wxIsalpha(wxChar ch) { return IsCharAlpha(ch); }
 977 WXDLLEXPORT int wxIsctrl(wxChar ch) { return wxMSW_ctype(ch) & C1_CNTRL; }
 978 WXDLLEXPORT int wxIsdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_DIGIT; }
 979 WXDLLEXPORT int wxIsgraph(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_PUNCT|C1_ALPHA); }
 980 WXDLLEXPORT int wxIslower(wxChar ch) { return IsCharLower(ch); }
 981 WXDLLEXPORT int wxIsprint(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_SPACE|C1_PUNCT|C1_ALPHA); }
 982 WXDLLEXPORT int wxIspunct(wxChar ch) { return wxMSW_ctype(ch) & C1_PUNCT; }
 983 WXDLLEXPORT int wxIsspace(wxChar ch) { return wxMSW_ctype(ch) & C1_SPACE; }
 984 WXDLLEXPORT int wxIsupper(wxChar ch) { return IsCharUpper(ch); }
 985 WXDLLEXPORT int wxIsxdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_XDIGIT; }
 986 WXDLLEXPORT int wxTolower(wxChar ch) { return (wxChar)CharLower((LPTSTR)(ch)); }
 987 WXDLLEXPORT int wxToupper(wxChar ch) { return (wxChar)CharUpper((LPTSTR)(ch)); }
 988 #endif
 989
 990 #ifndef wxStrdupA
 991
 992 WXDLLEXPORT char *wxStrdupA(const char *s)
 993 {
 994     return strcpy((char *)malloc(strlen(s) + 1), s);
 995 }
 996
 997 #endif // wxStrdupA
 998
 999 #ifndef wxStrdupW
1000
1001 WXDLLEXPORT wchar_t * wxStrdupW(const wchar_t *pwz)
1002 {
1003   size_t size = (wxWcslen(pwz) + 1) * sizeof(wchar_t);
1004   wchar_t *ret = (wchar_t *) malloc(size);
1005   memcpy(ret, pwz, size);
1006   return ret;
1007 }
1008
1009 #endif // wxStrdupW
1010
1011 #ifndef wxStricmp
1012 int WXDLLEXPORT wxStricmp(const wxChar *psz1, const wxChar *psz2)
1013 {
1014   register wxChar c1, c2;
1015   do {
1016     c1 = wxTolower(*psz1++);
1017     c2 = wxTolower(*psz2++);
1018   } while ( c1 && (c1 == c2) );
1019   return c1 - c2;
1020 }
1021 #endif
1022
1023 #ifndef wxStricmp
1024 int WXDLLEXPORT wxStrnicmp(const wxChar *s1, const wxChar *s2, size_t n)
1025 {
1026   // initialize the variables just to suppress stupid gcc warning
1027   register wxChar c1 = 0, c2 = 0;
1028   while (n && ((c1 = wxTolower(*s1)) == (c2 = wxTolower(*s2)) ) && c1) n--, s1++, s2++;
1029   if (n) {
1030     if (c1 < c2) return -1;
1031     if (c1 > c2) return 1;
1032   }
1033   return 0;
1034 }
1035 #endif
1036
1037 #ifndef wxSetlocale
1038 WXDLLEXPORT wxWCharBuffer wxSetlocale(int category, const wxChar *locale)
1039 {
1040     char *localeOld = setlocale(category, wxConvLocal.cWX2MB(locale));
1041
1042     return wxWCharBuffer(wxConvLocal.cMB2WC(localeOld));
1043 }
1044 #endif
1045
1046 // ----------------------------------------------------------------------------
1047 // string.h functions
1048 // ----------------------------------------------------------------------------
1049
1050 #ifdef wxNEED_WX_STRING_H
1051 WXDLLEXPORT wxChar * wxStrcat(wxChar *dest, const wxChar *src)
1052 {
1053   wxChar *ret = dest;
1054   while (*dest) dest++;
1055   while ((*dest++ = *src++));
1056   return ret;
1057 }
1058
1059 WXDLLEXPORT const wxChar * wxStrchr(const wxChar *s, wxChar c)
1060 {
1061     // be careful here as the terminating NUL makes part of the string
1062     while ( *s != c )
1063     {
1064         if ( !*s++ )
1065             return NULL;
1066     }
1067
1068     return s;
1069 }
1070
1071 WXDLLEXPORT int wxStrcmp(const wxChar *s1, const wxChar *s2)
1072 {
1073   while ((*s1 == *s2) && *s1) s1++, s2++;
1074   if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
1075   if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
1076   return 0;
1077 }
1078
1079 WXDLLEXPORT wxChar * wxStrcpy(wxChar *dest, const wxChar *src)
1080 {
1081   wxChar *ret = dest;
1082   while ((*dest++ = *src++));
1083   return ret;
1084 }
1085
1086 WXDLLEXPORT wxChar * wxStrncat(wxChar *dest, const wxChar *src, size_t n)
1087 {
1088   wxChar *ret = dest;
1089   while (*dest) dest++;
1090   while (n && (*dest++ = *src++)) n--;
1091   return ret;
1092 }
1093
1094 WXDLLEXPORT int wxStrncmp(const wxChar *s1, const wxChar *s2, size_t n)
1095 {
1096   while (n && (*s1 == *s2) && *s1) n--, s1++, s2++;
1097   if (n) {
1098     if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
1099     if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
1100   }
1101   return 0;
1102 }
1103
1104 WXDLLEXPORT wxChar * wxStrncpy(wxChar *dest, const wxChar *src, size_t n)
1105 {
1106   wxChar *ret = dest;
1107   while (n && (*dest++ = *src++)) n--;
1108   while (n) *dest++=0, n--; // the docs specify padding with zeroes
1109   return ret;
1110 }
1111
1112 WXDLLEXPORT const wxChar * wxStrpbrk(const wxChar *s, const wxChar *accept)
1113 {
1114   while (*s && !wxStrchr(accept, *s))
1115       s++;
1116
1117   return *s ? s : NULL;
1118 }
1119
1120 WXDLLEXPORT const wxChar * wxStrrchr(const wxChar *s, wxChar c)
1121 {
1122     const wxChar *ret = NULL;
1123     do
1124     {
1125         if ( *s == c )
1126             ret = s;
1127         s++;
1128     }
1129     while ( *s );
1130
1131     return ret;
1132 }
1133
1134 WXDLLEXPORT size_t wxStrspn(const wxChar *s, const wxChar *accept)
1135 {
1136   size_t len = 0;
1137   while (wxStrchr(accept, *s++)) len++;
1138   return len;
1139 }
1140
1141 WXDLLEXPORT const wxChar *wxStrstr(const wxChar *haystack, const wxChar *needle)
1142 {
1143     wxCHECK_RET( needle, NULL, _T("NULL argument in wxStrstr") );
1144
1145     // VZ: this is not exactly the most efficient string search algorithm...
1146
1147     const size_t len = wxStrlen(needle);
1148
1149     while ( const wxChar *fnd = wxStrchr(haystack, *needle) )
1150     {
1151         if ( !wxStrncmp(fnd, needle, len) )
1152             return fnd;
1153
1154         haystack = fnd + 1;
1155     }
1156
1157     return NULL;
1158 }
1159
1160 WXDLLEXPORT double wxStrtod(const wxChar *nptr, wxChar **endptr)
1161 {
1162   const wxChar *start = nptr;
1163
1164   // FIXME: only correct for C locale
1165   while (wxIsspace(*nptr)) nptr++;
1166   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1167   while (wxIsdigit(*nptr)) nptr++;
1168   if (*nptr == wxT('.')) {
1169     nptr++;
1170     while (wxIsdigit(*nptr)) nptr++;
1171   }
1172   if (*nptr == wxT('E') || *nptr == wxT('e')) {
1173     nptr++;
1174     if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1175     while (wxIsdigit(*nptr)) nptr++;
1176   }
1177
1178   wxString data(nptr, nptr-start);
1179   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1180   char *rdat = wxMBSTRINGCAST dat;
1181   double ret = strtod(dat, &rdat);
1182
1183   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1184
1185   return ret;
1186 }
1187
1188 WXDLLEXPORT long int wxStrtol(const wxChar *nptr, wxChar **endptr, int base)
1189 {
1190   const wxChar *start = nptr;
1191
1192   // FIXME: only correct for C locale
1193   while (wxIsspace(*nptr)) nptr++;
1194   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1195   if (((base == 0) || (base == 16)) &&
1196       (nptr[0] == wxT('0') && nptr[1] == wxT('x'))) {
1197     nptr += 2;
1198     base = 16;
1199   }
1200   else if ((base == 0) && (nptr[0] == wxT('0'))) base = 8;
1201   else if (base == 0) base = 10;
1202
1203   while ((wxIsdigit(*nptr) && (*nptr - wxT('0') < base)) ||
1204          (wxIsalpha(*nptr) && (wxToupper(*nptr) - wxT('A') + 10 < base))) nptr++;
1205
1206   wxString data(nptr, nptr-start);
1207   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1208   char *rdat = wxMBSTRINGCAST dat;
1209   long int ret = strtol(dat, &rdat, base);
1210
1211   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1212
1213   return ret;
1214 }
1215 #endif // wxNEED_WX_STRING_H
1216
1217 #ifdef wxNEED_WX_STDIO_H
1218 WXDLLEXPORT FILE * wxFopen(const wxChar *path, const wxChar *mode)
1219 {
1220     char mode_buffer[10];
1221     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1222        mode_buffer[i] = (char) mode[i];
1223
1224     return fopen( wxConvFile.cWX2MB(path), mode_buffer );
1225 }
1226
1227 WXDLLEXPORT FILE * wxFreopen(const wxChar *path, const wxChar *mode, FILE *stream)
1228 {
1229     char mode_buffer[10];
1230     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1231        mode_buffer[i] = (char) mode[i];
1232
1233     return freopen( wxConvFile.cWX2MB(path), mode_buffer, stream );
1234 }
1235
1236 WXDLLEXPORT int wxRemove(const wxChar *path)
1237 {
1238     return remove( wxConvFile.cWX2MB(path) );
1239 }
1240
1241 WXDLLEXPORT int wxRename(const wxChar *oldpath, const wxChar *newpath)
1242 {
1243     return rename( wxConvFile.cWX2MB(oldpath), wxConvFile.cWX2MB(newpath) );
1244 }
1245 #endif
1246
1247 #ifndef wxAtof
1248 double   WXDLLEXPORT wxAtof(const wxChar *psz)
1249 {
1250 #ifdef __WXWINCE__
1251     double d;
1252     wxString str(psz);
1253     if (str.ToDouble(& d))
1254         return d;
1255     else
1256         return 0.0;
1257 #else
1258     return atof(wxConvLocal.cWX2MB(psz));
1259 #endif
1260 }
1261 #endif
1262
1263 #ifdef wxNEED_WX_STDLIB_H
1264 int      WXDLLEXPORT wxAtoi(const wxChar *psz)
1265 {
1266   return atoi(wxConvLocal.cWX2MB(psz));
1267 }
1268
1269 long     WXDLLEXPORT wxAtol(const wxChar *psz)
1270 {
1271   return atol(wxConvLocal.cWX2MB(psz));
1272 }
1273
1274 wxChar * WXDLLEXPORT wxGetenv(const wxChar *name)
1275 {
1276   static wxHashTable env;
1277
1278   // check if we already have stored the converted env var
1279   wxObject *data = env.Get(name);
1280   if (!data)
1281   {
1282     // nope, retrieve it,
1283 #if wxUSE_UNICODE
1284     wxCharBuffer buffer = wxConvLocal.cWX2MB(name);
1285     // printf( "buffer %s\n", (const char*) buffer );
1286     const char *val = getenv( (const char *)buffer );
1287 #else
1288     const char *val = getenv( name );
1289 #endif
1290
1291     if (!val) return (wxChar *)NULL;
1292     // printf( "home %s\n", val );
1293
1294     // convert it,
1295 #if wxUSE_UNICODE
1296     data = (wxObject *)new wxString(val, wxConvLocal);
1297 #else
1298     data = (wxObject *)new wxString(val);
1299 #endif
1300
1301     // and store it
1302     env.Put(name, data);
1303   }
1304   // return converted env var
1305   return (wxChar *)((wxString *)data)->c_str();
1306 }
1307
1308 int WXDLLEXPORT wxSystem(const wxChar *psz)
1309 {
1310     return system(wxConvLocal.cWX2MB(psz));
1311 }
1312
1313 #endif // wxNEED_WX_STDLIB_H
1314
1315 #ifdef wxNEED_WX_TIME_H
1316 WXDLLEXPORT size_t   wxStrftime(wxChar *s, size_t max, const wxChar *fmt, const struct tm *tm)
1317 {
1318     if (!max) return 0;
1319
1320     char *buf = (char *)malloc(max);
1321     size_t ret = strftime(buf, max, wxConvLocal.cWX2MB(fmt), tm);
1322     if (ret)
1323     {
1324         wxStrcpy(s, wxConvLocal.cMB2WX(buf));
1325         free(buf);
1326         return wxStrlen(s);
1327     }
1328     else
1329     {
1330         free(buf);
1331         *s = 0;
1332         return 0;
1333   }
1334 }
1335 #endif // wxNEED_WX_TIME_H
1336
1337 #endif // wxUSE_WCHAR_T
1338
1339 // ----------------------------------------------------------------------------
1340 // functions which we may need even if !wxUSE_WCHAR_T
1341 // ----------------------------------------------------------------------------
1342
1343 #ifndef wxStrtok
1344
1345 WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr)
1346 {
1347     if (!psz)
1348     {
1349         psz = *save_ptr;
1350         if ( !psz )
1351             return NULL;
1352     }
1353
1354     psz += wxStrspn(psz, delim);
1355     if (!*psz)
1356     {
1357         *save_ptr = (wxChar *)NULL;
1358         return (wxChar *)NULL;
1359     }
1360
1361     wxChar *ret = psz;
1362     psz = wxStrpbrk(psz, delim);
1363     if (!psz)
1364     {
1365         *save_ptr = (wxChar*)NULL;
1366     }
1367     else
1368     {
1369         *psz = wxT('\0');
1370         *save_ptr = psz + 1;
1371     }
1372
1373     return ret;
1374 }
1375
1376 #endif // wxStrtok
1377
1378 // ----------------------------------------------------------------------------
1379 // missing C RTL functions
1380 // ----------------------------------------------------------------------------
1381
1382 #if (defined(__MWERKS__) && !defined(__MACH__) && (__MSL__ < 0x00008000)) || \
1383      defined(__WXWINCE__)
1384 char *strdup(const char *s)
1385 {
1386     char *dest = (char*) malloc( strlen( s ) + 1 ) ;
1387     if ( dest )
1388         strcpy( dest , s ) ;
1389     return dest ;
1390 }
1391 #endif
1392
1393 #if (defined(__MWERKS__) && !defined(__MACH__)) || (defined(__WXWINCE__) && _WIN32_WCE <= 211)
1394
1395 int isascii( int c )
1396 {
1397     return ( c >= 0 && c < 128 );
1398 }
1399 #endif
1400
1401 #if defined(__WXWINCE__) && (_WIN32_WCE <= 211)
1402 #if (_WIN32_WCE < 300)
1403 void *calloc( size_t num, size_t size )
1404 {
1405     void** ptr = (void **)malloc(num * size);
1406     memset( ptr, 0, num * size);
1407     return ptr;
1408 }
1409 #endif
1410
1411 int isspace(int c)
1412 {
1413     return (c == ' ');
1414 }
1415
1416 #endif
1417