src/common/wxchar.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/wxchar.cpp
   3 // Purpose:     wxChar implementation
   4 // Author:      Ove Kåven
   5 // Modified by: Ron Lee
   6 // Created:     09/04/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets copyright
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // headers, declarations, constants
  14 // ===========================================================================
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #define _ISOC9X_SOURCE 1 // to get vsscanf()
  24 #define _BSD_SOURCE    1 // to still get strdup()
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29
  30 #ifndef __WXWINCE__
  31     #include <time.h>
  32     #include <locale.h>
  33 #else
  34     #include "wx/msw/wince/time.h"
  35 #endif
  36
  37 #ifndef WX_PRECOMP
  38     #include "wx/wxchar.h"
  39     #include "wx/string.h"
  40     #include "wx/hash.h"
  41 #endif
  42   #include "wx/utils.h"     // for wxMin and wxMax
  43
  44 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
  45   #include <windef.h>
  46     #include <winbase.h>
  47     #include <winnls.h>
  48     #include <winnt.h>
  49 #endif
  50
  51 #if defined(__MWERKS__) && __MSL__ >= 0x6000
  52 namespace std {}
  53 using namespace std ;
  54 #endif
  55
  56 #if wxUSE_WCHAR_T
  57 size_t WXDLLEXPORT wxMB2WC(wchar_t *buf, const char *psz, size_t n)
  58 {
  59   // assume that we have mbsrtowcs() too if we have wcsrtombs()
  60 #ifdef HAVE_WCSRTOMBS
  61   mbstate_t mbstate;
  62   memset(&mbstate, 0, sizeof(mbstate_t));
  63 #endif
  64
  65   if (buf) {
  66     if (!n || !*psz) {
  67       if (n) *buf = wxT('\0');
  68       return 0;
  69     }
  70 #ifdef HAVE_WCSRTOMBS
  71     return mbsrtowcs(buf, &psz, n, &mbstate);
  72 #else
  73     return wxMbstowcs(buf, psz, n);
  74 #endif
  75   }
  76
  77   // note that we rely on common (and required by Unix98 but unfortunately not
  78   // C99) extension which allows to call mbs(r)towcs() with NULL output pointer
  79   // to just get the size of the needed buffer -- this is needed as otherwise
  80   // we have no idea about how much space we need and if the CRT doesn't
  81   // support it (the only currently known example being Metrowerks, see
  82   // wx/wxchar.h) we don't use its mbstowcs() at all
  83 #ifdef HAVE_WCSRTOMBS
  84   return mbsrtowcs((wchar_t *) NULL, &psz, 0, &mbstate);
  85 #else
  86   return wxMbstowcs((wchar_t *) NULL, psz, 0);
  87 #endif
  88 }
  89
  90 size_t WXDLLEXPORT wxWC2MB(char *buf, const wchar_t *pwz, size_t n)
  91 {
  92 #ifdef HAVE_WCSRTOMBS
  93   mbstate_t mbstate;
  94   memset(&mbstate, 0, sizeof(mbstate_t));
  95 #endif
  96
  97   if (buf) {
  98     if (!n || !*pwz) {
  99       // glibc2.1 chokes on null input
 100       if (n) *buf = '\0';
 101       return 0;
 102     }
 103 #ifdef HAVE_WCSRTOMBS
 104     return wcsrtombs(buf, &pwz, n, &mbstate);
 105 #else
 106     return wxWcstombs(buf, pwz, n);
 107 #endif
 108   }
 109
 110 #ifdef HAVE_WCSRTOMBS
 111   return wcsrtombs((char *) NULL, &pwz, 0, &mbstate);
 112 #else
 113   return wxWcstombs((char *) NULL, pwz, 0);
 114 #endif
 115 }
 116 #endif // wxUSE_WCHAR_T
 117
 118 bool WXDLLEXPORT wxOKlibc()
 119 {
 120 #if wxUSE_WCHAR_T && defined(__UNIX__) && defined(__GLIBC__) && !defined(__WINE__)
 121   // glibc 2.0 uses UTF-8 even when it shouldn't
 122   wchar_t res = 0;
 123   if ((MB_CUR_MAX == 2) &&
 124       (wxMB2WC(&res, "\xdd\xa5", 1) == 1) &&
 125       (res==0x765)) {
 126     // this is UTF-8 allright, check whether that's what we want
 127     char *cur_locale = setlocale(LC_CTYPE, NULL);
 128     if ((strlen(cur_locale) < 4) ||
 129             (strcasecmp(cur_locale + strlen(cur_locale) - 4, "utf8")) ||
 130             (strcasecmp(cur_locale + strlen(cur_locale) - 5, "utf-8"))) {
 131       // nope, don't use libc conversion
 132       return false;
 133     }
 134   }
 135 #endif
 136   return true;
 137 }
 138
 139 // ============================================================================
 140 // printf() functions business
 141 // ============================================================================
 142
 143 // special test mode: define all functions below even if we don't really need
 144 // them to be able to test them
 145 #ifdef wxTEST_PRINTF
 146     #undef wxFprintf
 147     #undef wxPrintf
 148     #undef wxSprintf
 149     #undef wxVfprintf
 150     #undef wxVsprintf
 151     #undef wxVprintf
 152     #undef wxVsnprintf_
 153     #undef wxSnprintf_
 154
 155     #define wxNEED_WPRINTF
 156
 157     int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr );
 158 #endif
 159
 160 // ----------------------------------------------------------------------------
 161 // implement [v]snprintf() if the system doesn't provide a safe one
 162 // or if the system's one does not support positional parameters
 163 // (very useful for i18n purposes)
 164 // ----------------------------------------------------------------------------
 165
 166 #if !defined(wxVsnprintf_)
 167
 168 // wxUSE_STRUTILS says our wxVsnprintf_ implementation to use or not to
 169 // use wxStrlen and wxStrncpy functions over one-char processing loops.
 170 //
 171 // Some benchmarking revealed that wxUSE_STRUTILS == 1 has the following
 172 // effects:
 173 // -> on Windows:
 174 //     when in ANSI mode, this setting does not change almost anything
 175 //     when in Unicode mode, it gives ~ 50% of slowdown !
 176 // -> on Linux:
 177 //     both in ANSI and Unicode mode it gives ~ 60% of speedup !
 178 //
 179 #if defined(WIN32) && wxUSE_UNICODE
 180 #define wxUSE_STRUTILS      0
 181 #else
 182 #define wxUSE_STRUTILS      1
 183 #endif
 184
 185 // some limits of our implementation
 186 #define wxMAX_SVNPRINTF_ARGUMENTS         64
 187 #define wxMAX_SVNPRINTF_FLAGBUFFER_LEN    32
 188
 189 // the conversion specifiers accepted by wxMyPosVsnprintf_
 190 enum wxPrintfArgType {
 191     wxPAT_INVALID = -1,
 192
 193     wxPAT_INT,          // %d, %i, %o, %u, %x, %X
 194     wxPAT_LONGINT,      // %ld, etc
 195 #if SIZEOF_LONG_LONG
 196     wxPAT_LONGLONGINT,  // %Ld, etc
 197 #endif
 198     wxPAT_SIZET,        // %Zd, etc
 199
 200     wxPAT_DOUBLE,       // %e, %E, %f, %g, %G
 201     wxPAT_LONGDOUBLE,   // %le, etc
 202
 203     wxPAT_POINTER,      // %p
 204
 205     wxPAT_CHAR,         // %hc  (in ANSI mode: %c, too)
 206     wxPAT_WCHAR,        // %lc  (in Unicode mode: %c, too)
 207
 208     wxPAT_PCHAR,        // %s   (related to a char *)
 209     wxPAT_PWCHAR,       // %s   (related to a wchar_t *)
 210
 211     wxPAT_NINT,         // %n
 212     wxPAT_NSHORTINT,    // %hn
 213     wxPAT_NLONGINT      // %ln
 214 };
 215
 216 // an argument passed to wxMyPosVsnprintf_
 217 typedef union {
 218     int pad_int;                        //  %d, %i, %o, %u, %x, %X
 219     long int pad_longint;               // %ld, etc
 220 #if SIZEOF_LONG_LONG
 221     long long int pad_longlongint;      // %Ld, etc
 222 #endif
 223     size_t pad_sizet;                   // %Zd, etc
 224
 225     double pad_double;                  // %e, %E, %f, %g, %G
 226     long double pad_longdouble;         // %le, etc
 227
 228     void *pad_pointer;                  // %p
 229
 230     char pad_char;                      // %hc  (in ANSI mode: %c, too)
 231     wchar_t pad_wchar;                  // %lc  (in Unicode mode: %c, too)
 232
 233     char *pad_pchar;                    // %s   (related to a char *)
 234     wchar_t *pad_pwchar;                // %s   (related to a wchar_t *)
 235
 236     int *pad_nint;                      // %n
 237     short int *pad_nshortint;           // %hn
 238     long int *pad_nlongint;             // %ln
 239 } wxPrintfArg;
 240
 241
 242 // Contains parsed data relative to a conversion specifier given to
 243 // wxMyPosVsnprintf_ and parsed from the format string
 244 // NOTE: in C++ there is almost no difference between struct & classes thus
 245 //       there is no performance gain by using a struct here...
 246 class wxPrintfConvSpec
 247 {
 248 public:
 249
 250     // the position of the argument relative to this conversion specifier
 251     size_t pos;
 252
 253     // the type of this conversion specifier
 254     wxPrintfArgType type;
 255
 256     // the minimum and maximum width
 257     // when one of this var is set to -1 it means: use the following argument
 258     // in the stack as minimum/maximum width for this conversion specifier
 259     int min_width, max_width;
 260
 261     // does the argument need to the be aligned to left ?
 262     bool adj_left;
 263
 264     // pointer to the '%' of this conversion specifier in the format string
 265     // NOTE: this points somewhere in the string given to the Parse() function -
 266     //       it's task of the caller ensure that memory is still valid !
 267     const wxChar *argpos;
 268
 269     // pointer to the last character of this conversion specifier in the
 270     // format string
 271     // NOTE: this points somewhere in the string given to the Parse() function -
 272     //       it's task of the caller ensure that memory is still valid !
 273     const wxChar *argend;
 274
 275     // a little buffer where formatting flags like #+\.hlqLZ are stored by Parse()
 276     // for use in Process()
 277     char szFlags[wxMAX_SVNPRINTF_FLAGBUFFER_LEN];
 278
 279
 280 public:
 281
 282     // we don't declare this as a constructor otherwise it would be called
 283     // automatically and we don't want this: to be optimized, wxMyPosVsnprintf_
 284     // calls this function only on really-used instances of this class.
 285     void Init();
 286
 287     // Parses the first conversion specifier in the given string, which must
 288     // begin with a '%'. Returns false if the first '%' does not introduce a
 289     // (valid) conversion specifier and thus should be ignored.
 290     bool Parse(const wxChar *format);
 291
 292     // Process this conversion specifier and puts the result in the given
 293     // buffer. Returns the number of characters written in 'buf' or -1 if
 294     // there's not enough space.
 295     int Process(wxChar *buf, size_t lenMax, wxPrintfArg *p);
 296
 297     // Loads the argument of this conversion specifier from given va_list.
 298     bool LoadArg(wxPrintfArg *p, va_list &argptr);
 299
 300 private:
 301     // An helper function of LoadArg() which is used to handle the '*' flag
 302     void ReplaceAsteriskWith(int w);
 303 };
 304
 305 void wxPrintfConvSpec::Init()
 306 {
 307     min_width = 0;
 308     max_width = 0xFFFF;
 309     pos = 0;
 310     adj_left = false;
 311     argpos = argend = NULL;
 312     type = wxPAT_INVALID;
 313     szFlags[0] = wxT('%');
 314 }
 315
 316 bool wxPrintfConvSpec::Parse(const wxChar *format)
 317 {
 318     bool done = false;
 319
 320     // temporary parse data
 321     size_t flagofs = 1;
 322     bool in_prec, prec_dot;
 323     int ilen = 0;
 324
 325     adj_left = in_prec = prec_dot = false;
 326     argpos = argend = format;
 327     do
 328     {
 329 #define CHECK_PREC \
 330         if (in_prec && !prec_dot) \
 331         { \
 332             szFlags[flagofs++] = '.'; \
 333             prec_dot = true; \
 334         }
 335
 336         // what follows '%'?
 337         const wxChar ch = *(++argend);
 338         switch ( ch )
 339         {
 340             case wxT('\0'):
 341                 return false;       // not really an argument
 342
 343             case wxT('%'):
 344                 return false;       // not really an argument
 345
 346             case wxT('#'):
 347             case wxT('0'):
 348             case wxT(' '):
 349             case wxT('+'):
 350             case wxT('\''):
 351                 CHECK_PREC
 352                 szFlags[flagofs++] = ch;
 353                 break;
 354
 355             case wxT('-'):
 356                 CHECK_PREC
 357                 adj_left = true;
 358                 szFlags[flagofs++] = ch;
 359                 break;
 360
 361             case wxT('.'):
 362                 CHECK_PREC
 363                 in_prec = true;
 364                 prec_dot = false;
 365                 max_width = 0;
 366                 // dot will be auto-added to szFlags if non-negative
 367                 // number follows
 368                 break;
 369
 370             case wxT('h'):
 371                 ilen = -1;
 372                 CHECK_PREC
 373                 szFlags[flagofs++] = ch;
 374                 break;
 375
 376             case wxT('l'):
 377                 ilen = 1;
 378                 CHECK_PREC
 379                 szFlags[flagofs++] = ch;
 380                 break;
 381
 382             case wxT('q'):
 383             case wxT('L'):
 384                 ilen = 2;
 385                 CHECK_PREC
 386                 szFlags[flagofs++] = ch;
 387                 break;
 388
 389             case wxT('Z'):
 390                 ilen = 3;
 391                 CHECK_PREC
 392                 szFlags[flagofs++] = ch;
 393                 break;
 394
 395             case wxT('*'):
 396                 if (in_prec)
 397                 {
 398                     CHECK_PREC
 399
 400                     // tell Process() to use the next argument
 401                     // in the stack as maxwidth...
 402                     max_width = -1;
 403                 }
 404                 else
 405                 {
 406                     // tell Process() to use the next argument
 407                     // in the stack as minwidth...
 408                     min_width = -1;
 409                 }
 410
 411                 // save the * in our formatting buffer...
 412                 // will be replaced later by Process()
 413                 szFlags[flagofs++] = ch;
 414                 break;
 415
 416             case wxT('1'): case wxT('2'): case wxT('3'):
 417             case wxT('4'): case wxT('5'): case wxT('6'):
 418             case wxT('7'): case wxT('8'): case wxT('9'):
 419                 {
 420                     int len = 0;
 421                     CHECK_PREC
 422                     while ( (*argend >= wxT('0')) &&
 423                             (*argend <= wxT('9')) )
 424                     {
 425                         szFlags[flagofs++] = *argend;
 426                         len = len*10 + (*argend - wxT('0'));
 427                         argend++;
 428                     }
 429
 430                     if (in_prec)
 431                         max_width = len;
 432                     else
 433                         min_width = len;
 434
 435                     argend--; // the main loop pre-increments n again
 436                 }
 437                 break;
 438
 439             case wxT('$'):      // a positional parameter (e.g. %2$s) ?
 440                 {
 441                     if (min_width <= 0)
 442                         break;      // ignore this formatting flag as no
 443                                     // numbers are preceding it
 444
 445                     // remove from szFlags all digits previously added
 446                     do {
 447                         flagofs--;
 448                     } while (szFlags[flagofs] >= '1' &&
 449                              szFlags[flagofs] <= '9');
 450
 451                     // re-adjust the offset making it point to the
 452                     // next free char of szFlags
 453                     flagofs++;
 454
 455                     pos = min_width;
 456                     min_width = 0;
 457                 }
 458                 break;
 459
 460             case wxT('d'):
 461             case wxT('i'):
 462             case wxT('o'):
 463             case wxT('u'):
 464             case wxT('x'):
 465             case wxT('X'):
 466                 CHECK_PREC
 467                 szFlags[flagofs++] = ch;
 468                 szFlags[flagofs] = '\0';
 469                 if (ilen == 0)
 470                     type = wxPAT_INT;
 471                 else if (ilen == -1)
 472                     // NB: 'short int' value passed through '...'
 473                     //      is promoted to 'int', so we have to get
 474                     //      an int from stack even if we need a short
 475                     type = wxPAT_INT;
 476                 else if (ilen == 1)
 477                     type = wxPAT_LONGINT;
 478                 else if (ilen == 2)
 479 #if SIZEOF_LONG_LONG
 480                     type = wxPAT_LONGLONGINT;
 481 #else // !long long
 482                     type = wxPAT_LONGINT;
 483 #endif // long long/!long long
 484                 else if (ilen == 3)
 485                     type = wxPAT_SIZET;
 486                 done = true;
 487                 break;
 488
 489             case wxT('e'):
 490             case wxT('E'):
 491             case wxT('f'):
 492             case wxT('g'):
 493             case wxT('G'):
 494                 CHECK_PREC
 495                 szFlags[flagofs++] = ch;
 496                 szFlags[flagofs] = '\0';
 497                 if (ilen == 2)
 498                     type = wxPAT_LONGDOUBLE;
 499                 else
 500                     type = wxPAT_DOUBLE;
 501                 done = true;
 502                 break;
 503
 504             case wxT('p'):
 505                 type = wxPAT_POINTER;
 506                 done = true;
 507                 break;
 508
 509             case wxT('c'):
 510                 if (ilen == -1)
 511                 {
 512                     // in Unicode mode %hc == ANSI character
 513                     // and in ANSI mode, %hc == %c == ANSI...
 514                     type = wxPAT_CHAR;
 515                 }
 516                 else if (ilen == 1)
 517                 {
 518                     // in ANSI mode %lc == Unicode character
 519                     // and in Unicode mode, %lc == %c == Unicode...
 520                     type = wxPAT_WCHAR;
 521                 }
 522                 else
 523                 {
 524 #if wxUSE_UNICODE
 525                     // in Unicode mode, %c == Unicode character
 526                     type = wxPAT_WCHAR;
 527 #else
 528                     // in ANSI mode, %c == ANSI character
 529                     type = wxPAT_CHAR;
 530 #endif
 531                 }
 532                 done = true;
 533                 break;
 534
 535             case wxT('s'):
 536                 if (ilen == -1)
 537                 {
 538                     // Unicode mode wx extension: we'll let %hs mean non-Unicode
 539                     // strings (when in ANSI mode, %s == %hs == ANSI string)
 540                     type = wxPAT_PCHAR;
 541                 }
 542                 else if (ilen == 1)
 543                 {
 544                     // in Unicode mode, %ls == %s == Unicode string
 545                     // in ANSI mode, %ls == Unicode string
 546                     type = wxPAT_PWCHAR;
 547                 }
 548                 else
 549                 {
 550 #if wxUSE_UNICODE
 551                     type = wxPAT_PWCHAR;
 552 #else
 553                     type = wxPAT_PCHAR;
 554 #endif
 555                 }
 556                 done = true;
 557                 break;
 558
 559             case wxT('n'):
 560                 if (ilen == 0)
 561                         type = wxPAT_NINT;
 562                 else if (ilen == -1)
 563                         type = wxPAT_NSHORTINT;
 564                 else if (ilen >= 1)
 565                         type = wxPAT_NLONGINT;
 566                 done = true;
 567                 break;
 568
 569             default:
 570                 // bad format, don't consider this an argument;
 571                 // leave it unchanged
 572                 return false;
 573         }
 574     }
 575     while (!done);
 576
 577     return true;        // parsing was successful
 578 }
 579
 580
 581 void wxPrintfConvSpec::ReplaceAsteriskWith(int w)
 582 {
 583     char temp[wxMAX_SVNPRINTF_FLAGBUFFER_LEN];
 584
 585     // find the first * in our flag buffer
 586     char *pwidth = strchr(szFlags, '*');
 587     wxASSERT(pwidth);
 588
 589     // save what follows the * (the +1 is to skip it!)
 590     strcpy(temp, pwidth+1);
 591     if (w < 0) {
 592         pwidth[0] = '-';
 593         pwidth++;
 594     }
 595
 596     // replace * with the actual integer given as width
 597     int offset = ::sprintf(pwidth,"%d",abs(w));
 598
 599     // restore after the expanded * what was following it
 600     strcpy(pwidth+offset, temp);
 601 }
 602
 603 bool wxPrintfConvSpec::LoadArg(wxPrintfArg *p, va_list &argptr)
 604 {
 605     // did the '*' width/precision specifier was used ?
 606     if (max_width == -1)
 607     {
 608         // take the maxwidth specifier from the stack
 609         max_width = va_arg(argptr, int);
 610         if (max_width < 0)
 611             max_width = 0;
 612         else
 613             ReplaceAsteriskWith(max_width);
 614     }
 615
 616     if (min_width == -1)
 617     {
 618         // take the minwidth specifier from the stack
 619         min_width = va_arg(argptr, int);
 620
 621         ReplaceAsteriskWith(min_width);
 622         if (min_width < 0)
 623         {
 624             adj_left = !adj_left;
 625             min_width = -min_width;
 626         }
 627     }
 628
 629     switch (type) {
 630         case wxPAT_INT:
 631             p->pad_int = va_arg(argptr, int);
 632             break;
 633         case wxPAT_LONGINT:
 634             p->pad_longint = va_arg(argptr, long int);
 635             break;
 636 #if SIZEOF_LONG_LONG
 637         case wxPAT_LONGLONGINT:
 638             p->pad_longlongint = va_arg(argptr, long long int);
 639             break;
 640 #endif
 641         case wxPAT_SIZET:
 642             p->pad_sizet = va_arg(argptr, size_t);
 643             break;
 644         case wxPAT_DOUBLE:
 645             p->pad_double = va_arg(argptr, double);
 646             break;
 647         case wxPAT_LONGDOUBLE:
 648             p->pad_longdouble = va_arg(argptr, long double);
 649             break;
 650         case wxPAT_POINTER:
 651             p->pad_pointer = va_arg(argptr, void *);
 652             break;
 653
 654         case wxPAT_CHAR:
 655             p->pad_char = va_arg(argptr, int);  // char is promoted to int when passed through '...'
 656             break;
 657         case wxPAT_WCHAR:
 658             p->pad_wchar = va_arg(argptr, int);  // char is promoted to int when passed through '...'
 659             break;
 660
 661         case wxPAT_PCHAR:
 662             p->pad_pchar = va_arg(argptr, char *);
 663             break;
 664         case wxPAT_PWCHAR:
 665             p->pad_pwchar = va_arg(argptr, wchar_t *);
 666             break;
 667
 668         case wxPAT_NINT:
 669             p->pad_nint = va_arg(argptr, int *);
 670             break;
 671         case wxPAT_NSHORTINT:
 672             p->pad_nshortint = va_arg(argptr, short int *);
 673             break;
 674         case wxPAT_NLONGINT:
 675             p->pad_nlongint = va_arg(argptr, long int *);
 676             break;
 677
 678         case wxPAT_INVALID:
 679         default:
 680             return false;
 681     }
 682
 683     return true;    // loading was successful
 684 }
 685
 686 int wxPrintfConvSpec::Process(wxChar *buf, size_t lenMax, wxPrintfArg *p)
 687 {
 688     // buffer to avoid dynamic memory allocation each time for small strings
 689     static char szScratch[1024];
 690     size_t lenCur = 0;
 691
 692 #define APPEND_CH(ch) \
 693                 { \
 694                     if ( lenCur == lenMax ) \
 695                         return -1; \
 696                     \
 697                     buf[lenCur++] = ch; \
 698                 }
 699
 700 #define APPEND_STR(s) \
 701                 { \
 702                     for ( const wxChar *p = s; *p; p++ ) \
 703                     { \
 704                         APPEND_CH(*p); \
 705                     } \
 706                 }
 707
 708     switch ( type )
 709     {
 710         case wxPAT_INT:
 711             ::sprintf(szScratch, szFlags, p->pad_int);
 712             break;
 713
 714         case wxPAT_LONGINT:
 715             ::sprintf(szScratch, szFlags, p->pad_longint);
 716             break;
 717
 718 #if SIZEOF_LONG_LONG
 719         case wxPAT_LONGLONGINT:
 720             ::sprintf(szScratch, szFlags, p->pad_longlongint);
 721             break;
 722 #endif // SIZEOF_LONG_LONG
 723
 724         case wxPAT_SIZET:
 725             ::sprintf(szScratch, szFlags, p->pad_sizet);
 726             break;
 727
 728         case wxPAT_LONGDOUBLE:
 729             ::sprintf(szScratch, szFlags, p->pad_longdouble);
 730             break;
 731
 732         case wxPAT_DOUBLE:
 733             ::sprintf(szScratch, szFlags, p->pad_double);
 734             break;
 735
 736         case wxPAT_POINTER:
 737             ::sprintf(szScratch, szFlags, p->pad_pointer);
 738             break;
 739
 740         case wxPAT_CHAR:
 741         case wxPAT_WCHAR:
 742             {
 743                 wxChar val =
 744 #if wxUSE_UNICODE
 745                     p->pad_wchar;
 746
 747                 if (type == wxPAT_CHAR) {
 748                     // user passed a character explicitely indicated as ANSI...
 749                     const char buf[2] = { p->pad_char, 0 };
 750                     val = wxString(buf, wxConvLibc)[0u];
 751                 }
 752 #else
 753                     p->pad_char;
 754
 755 #if wxUSE_WCHAR_T
 756                 if (type == wxPAT_WCHAR) {
 757                     // user passed a character explicitely indicated as Unicode...
 758                     const wchar_t buf[2] = { p->pad_wchar, 0 };
 759                     val = wxString(buf, wxConvLibc)[0u];
 760                 }
 761 #endif
 762 #endif
 763
 764                 size_t i;
 765
 766                 if (!adj_left)
 767                     for (i = 1; i < (size_t)min_width; i++)
 768                         APPEND_CH(_T(' '));
 769
 770                 APPEND_CH(val);
 771
 772                 if (adj_left)
 773                     for (i = 1; i < (size_t)min_width; i++)
 774                         APPEND_CH(_T(' '));
 775             }
 776             break;
 777
 778         case wxPAT_PCHAR:
 779         case wxPAT_PWCHAR:
 780             {
 781                 wxString s;
 782                 const wxChar *val =
 783 #if wxUSE_UNICODE
 784                     p->pad_pwchar;
 785
 786                 if (type == wxPAT_PCHAR) {
 787                     // user passed a string explicitely indicated as ANSI...
 788                     val = s = wxString(p->pad_pchar, wxConvLibc);
 789                 }
 790 #else
 791                     p->pad_pchar;
 792
 793 #if wxUSE_WCHAR_T
 794                 if (type == wxPAT_PWCHAR) {
 795                     // user passed a string explicitely indicated as Unicode...
 796                     val = s = wxString(p->pad_pwchar, wxConvLibc);
 797                 }
 798 #endif
 799 #endif
 800                 int len;
 801
 802                 if (val)
 803                 {
 804 #if wxUSE_STRUTILS
 805                     // at this point we are sure that max_width is positive or null
 806                     // (see top of wxPrintfConvSpec::LoadArg)
 807                     len = wxMin((unsigned int)max_width, wxStrlen(val));
 808 #else
 809                     for ( len = 0; val[len] && (len < max_width); len++ )
 810                         ;
 811 #endif
 812                 }
 813                 else if (max_width >= 6)
 814                 {
 815                     val = wxT("(null)");
 816                     len = 6;
 817                 }
 818                 else
 819                 {
 820                     val = wxEmptyString;
 821                     len = 0;
 822                 }
 823
 824                 int i;
 825
 826                 if (!adj_left)
 827                 {
 828                     for (i = len; i < min_width; i++)
 829                         APPEND_CH(_T(' '));
 830                 }
 831
 832 #if wxUSE_STRUTILS
 833                 // at this point we are sure that max_width is positive or null
 834                 // (see top of wxPrintfConvSpec::LoadArg)
 835                 len = wxMin((unsigned int)len, lenMax-lenCur);
 836                 wxStrncpy(buf+lenCur, val, len);
 837                 lenCur += len;
 838 #else
 839                 for (i = 0; i < len; i++)
 840                     APPEND_CH(val[i]);
 841 #endif
 842
 843                 if (adj_left)
 844                 {
 845                     for (i = len; i < min_width; i++)
 846                         APPEND_CH(_T(' '));
 847                 }
 848             }
 849             break;
 850
 851         case wxPAT_NINT:
 852             *p->pad_nint = lenCur;
 853             break;
 854
 855         case wxPAT_NSHORTINT:
 856             *p->pad_nshortint = lenCur;
 857             break;
 858
 859         case wxPAT_NLONGINT:
 860             *p->pad_nlongint = lenCur;
 861             break;
 862
 863         case wxPAT_INVALID:
 864         default:
 865             return -1;
 866     }
 867
 868     // if we used system's sprintf() then we now need to append the s_szScratch
 869     // buffer to the given one...
 870     switch (type)
 871     {
 872         case wxPAT_INT:
 873         case wxPAT_LONGINT:
 874 #if SIZEOF_LONG_LONG
 875         case wxPAT_LONGLONGINT:
 876 #endif
 877         case wxPAT_SIZET:
 878         case wxPAT_LONGDOUBLE:
 879         case wxPAT_DOUBLE:
 880         case wxPAT_POINTER:
 881 #if wxUSE_STRUTILS
 882             {
 883                const wxMB2WXbuf tmp = wxConvLibc.cMB2WX(szScratch);
 884                size_t len = wxMin(lenMax, wxStrlen(tmp));
 885                wxStrncpy(buf, tmp, len);
 886                lenCur += len;
 887             }
 888 #else
 889             {
 890                 const wxMB2WXbuf tmp =
 891                     wxConvLibc.cMB2WX(szScratch);
 892                 APPEND_STR(tmp);
 893             }
 894 #endif
 895             break;
 896
 897         default:
 898             break;      // all other cases were completed previously
 899     }
 900
 901     return lenCur;
 902 }
 903
 904 int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
 905                              const wxChar *format, va_list argptr)
 906 {
 907     // cached data
 908     static wxPrintfConvSpec arg[wxMAX_SVNPRINTF_ARGUMENTS];
 909     static wxPrintfArg argdata[wxMAX_SVNPRINTF_ARGUMENTS];
 910     static wxPrintfConvSpec *pspec[wxMAX_SVNPRINTF_ARGUMENTS] = { NULL };
 911
 912     size_t i;
 913
 914     // number of characters in the buffer so far, must be less than lenMax
 915     size_t lenCur = 0;
 916
 917     size_t nargs = 0;
 918     const wxChar *toparse = format;
 919
 920     // parse the format string
 921     bool posarg_present = false, nonposarg_present = false;
 922     for (; *toparse != wxT('\0'); toparse++)
 923     {
 924         if (*toparse == wxT('%') )
 925         {
 926             arg[nargs].Init();
 927
 928             // let's see if this is a (valid) conversion specifier...
 929             if (arg[nargs].Parse(toparse))
 930             {
 931                 // ...yes it is
 932                 wxPrintfConvSpec *current = &arg[nargs];
 933
 934                 // make toparse point to the end of this specifier
 935                 toparse = current->argend;
 936
 937                 if (current->pos > 0) {
 938                     // the positionals start from number 1... adjust the index
 939                     current->pos--;
 940                     posarg_present = true;
 941                 } else {
 942                     // not a positional argument...
 943                     current->pos = nargs;
 944                     nonposarg_present = true;
 945                 }
 946
 947                 // this conversion specifier is tied to the pos-th argument...
 948                 pspec[current->pos] = current;
 949                 nargs++;
 950
 951                 if (nargs == wxMAX_SVNPRINTF_ARGUMENTS)
 952                     break;  // cannot handle any additional conv spec
 953             }
 954         }
 955     }
 956
 957     if (posarg_present && nonposarg_present)
 958         return -1;      // format strings with both positional and
 959                         // non-positional conversion specifier are unsupported !!
 960
 961     // on platforms where va_list is an array type, it is necessary to make a
 962     // copy to be able to pass it to LoadArg as a reference.
 963     bool ok = true;
 964     va_list ap;
 965     wxVaCopy(ap, argptr);
 966
 967     // now load arguments from stack
 968     for (i=0; i < nargs && ok; i++) {
 969         // !pspec[i] if user forgot a positional parameter (e.g. %$1s %$3s) ?
 970         // or LoadArg false if wxPrintfConvSpec::Parse failed to set its 'type'
 971         // to a valid value...
 972         ok = pspec[i] && pspec[i]->LoadArg(&argdata[i], ap);
 973     }
 974
 975     va_end(ap);
 976
 977     if (!ok)
 978         return -1;
 979
 980     // finally, process each conversion specifier with its own argument
 981     toparse = format;
 982     for (i=0; i < nargs; i++)
 983     {
 984         // copy in the output buffer the portion of the format string between
 985         // last specifier and the current one
 986         size_t tocopy = ( arg[i].argpos - toparse );
 987         if (lenCur+tocopy >= lenMax)
 988             return -1;      // not enough space in the output buffer !
 989
 990         wxStrncpy(buf+lenCur, toparse, tocopy);
 991         lenCur += tocopy;
 992
 993         // process this specifier directly in the output buffer
 994         int n = arg[i].Process(buf+lenCur, lenMax - lenCur, &argdata[arg[i].pos]);
 995         if (n == -1)
 996             return -1;      // not enough space in the output buffer !
 997         lenCur += n;
 998
 999         // the +1 is because wxPrintfConvSpec::argend points to the last character
1000         // of the format specifier, but we are not interested to it...
1001         toparse = arg[i].argend + 1;
1002     }
1003
1004     // copy portion of the format string after last specifier
1005     // NOTE: toparse is pointing to the character just after the last processed
1006     //       conversion specifier
1007     // NOTE2: the +1 is because we want to copy also the '\0'
1008     size_t tocopy = wxStrlen(format) + 1  - ( toparse - format ) ;
1009     if (lenCur+tocopy >= lenMax)
1010         return -1;      // not enough space in the output buffer !
1011     wxStrncpy(buf+lenCur, toparse, tocopy);
1012     lenCur += tocopy - 1;   // the -1 is because of the '\0'
1013
1014     // clean the static array portion used...
1015     // NOTE: other arrays do not need cleanup!
1016     memset(pspec, 0, sizeof(wxPrintfConvSpec*)*nargs);
1017
1018     wxASSERT(lenCur == wxStrlen(buf));
1019     return lenCur;
1020 }
1021
1022 #undef APPEND_CH
1023 #undef APPEND_STR
1024 #undef CHECK_PREC
1025
1026 #endif // !wxVsnprintfA
1027
1028 #if !defined(wxSnprintf_)
1029 int WXDLLEXPORT wxSnprintf_(wxChar *buf, size_t len, const wxChar *format, ...)
1030 {
1031     va_list argptr;
1032     va_start(argptr, format);
1033
1034     int iLen = wxVsnprintf_(buf, len, format, argptr);
1035
1036     va_end(argptr);
1037
1038     return iLen;
1039 }
1040 #endif // wxSnprintf_
1041
1042 #if defined(__DMC__)
1043     /* Digital Mars adds count to _stprintf (C99) so convert */
1044     #if wxUSE_UNICODE
1045         int wxSprintf (wchar_t * __RESTRICT s, const wchar_t * __RESTRICT format, ... )
1046         {
1047             va_list arglist;
1048
1049             va_start( arglist, format );
1050             int iLen = swprintf ( s, -1, format, arglist );
1051             va_end( arglist );
1052             return iLen ;
1053         }
1054
1055     #endif // wxUSE_UNICODE
1056
1057 #endif //__DMC__
1058
1059 // ----------------------------------------------------------------------------
1060 // implement the standard IO functions for wide char if libc doesn't have them
1061 // ----------------------------------------------------------------------------
1062
1063 #ifdef wxNEED_FPUTS
1064 int wxFputs(const wchar_t *ws, FILE *stream)
1065 {
1066     // counting the number of wide characters written isn't worth the trouble,
1067     // simply distinguish between ok and error
1068     return fputs(wxConvLibc.cWC2MB(ws), stream) == -1 ? -1 : 0;
1069 }
1070 #endif // wxNEED_FPUTS
1071
1072 #ifdef wxNEED_PUTS
1073 int wxPuts(const wxChar *ws)
1074 {
1075     int rc = wxFputs(ws, stdout);
1076     if ( rc != -1 )
1077     {
1078         if ( wxFputs(L"\n", stdout) == -1 )
1079             return -1;
1080
1081         rc++;
1082     }
1083
1084     return rc;
1085 }
1086 #endif // wxNEED_PUTS
1087
1088 #ifdef wxNEED_PUTC
1089 int /* not wint_t */ wxPutc(wchar_t wc, FILE *stream)
1090 {
1091     wchar_t ws[2] = { wc, L'\0' };
1092
1093     return wxFputs(ws, stream);
1094 }
1095 #endif // wxNEED_PUTC
1096
1097 // NB: we only implement va_list functions here, the ones taking ... are
1098 //     defined below for wxNEED_PRINTF_CONVERSION case anyhow and we reuse
1099 //     the definitions there to avoid duplicating them here
1100 #ifdef wxNEED_WPRINTF
1101
1102 // TODO: implement the scanf() functions
1103 int vwscanf(const wxChar *format, va_list argptr)
1104 {
1105     wxFAIL_MSG( _T("TODO") );
1106
1107     return -1;
1108 }
1109
1110 int vswscanf(const wxChar *ws, const wxChar *format, va_list argptr)
1111 {
1112     // The best we can do without proper Unicode support in glibc is to
1113     // convert the strings into MB representation and run ANSI version
1114     // of the function. This doesn't work with %c and %s because of difference
1115     // in size of char and wchar_t, though.
1116
1117     wxCHECK_MSG( wxStrstr(format, _T("%s")) == NULL, -1,
1118                  _T("incomplete vswscanf implementation doesn't allow %s") );
1119     wxCHECK_MSG( wxStrstr(format, _T("%c")) == NULL, -1,
1120                  _T("incomplete vswscanf implementation doesn't allow %c") );
1121
1122     va_list argcopy;
1123     wxVaCopy(argcopy, argptr);
1124     return vsscanf(wxConvLibc.cWX2MB(ws), wxConvLibc.cWX2MB(format), argcopy);
1125 }
1126
1127 int vfwscanf(FILE *stream, const wxChar *format, va_list argptr)
1128 {
1129     wxFAIL_MSG( _T("TODO") );
1130
1131     return -1;
1132 }
1133
1134 #define vswprintf wxVsnprintf_
1135
1136 int vfwprintf(FILE *stream, const wxChar *format, va_list argptr)
1137 {
1138     wxString s;
1139     int rc = s.PrintfV(format, argptr);
1140
1141     if ( rc != -1 )
1142     {
1143         // we can't do much better without Unicode support in libc...
1144         if ( fprintf(stream, "%s", (const char*)s.mb_str() ) == -1 )
1145             return -1;
1146     }
1147
1148     return rc;
1149 }
1150
1151 int vwprintf(const wxChar *format, va_list argptr)
1152 {
1153     return wxVfprintf(stdout, format, argptr);
1154 }
1155
1156 #endif // wxNEED_WPRINTF
1157
1158 #ifdef wxNEED_PRINTF_CONVERSION
1159
1160 // ----------------------------------------------------------------------------
1161 // wxFormatConverter: class doing the "%s" -> "%ls" conversion
1162 // ----------------------------------------------------------------------------
1163
1164 /*
1165    Here are the gory details. We want to follow the Windows/MS conventions,
1166    that is to have
1167
1168    In ANSI mode:
1169
1170    format specifier         results in
1171    -----------------------------------
1172    %c, %hc, %hC             char
1173    %lc, %C, %lC             wchar_t
1174
1175    In Unicode mode:
1176
1177    format specifier         results in
1178    -----------------------------------
1179    %hc, %C, %hC             char
1180    %c, %lc, %lC             wchar_t
1181
1182
1183    while on POSIX systems we have %C identical to %lc and %c always means char
1184    (in any mode) while %lc always means wchar_t,
1185
1186    So to use native functions in order to get our semantics we must do the
1187    following translations in Unicode mode (nothing to do in ANSI mode):
1188
1189    wxWidgets specifier      POSIX specifier
1190    ----------------------------------------
1191
1192    %hc, %C, %hC             %c
1193    %c                       %lc
1194
1195
1196    And, of course, the same should be done for %s as well.
1197 */
1198
1199 class wxFormatConverter
1200 {
1201 public:
1202     wxFormatConverter(const wxChar *format);
1203
1204     // notice that we only translated the string if m_fmtOrig == NULL (as set
1205     // by CopyAllBefore()), otherwise we should simply use the original format
1206     operator const wxChar *() const
1207         { return m_fmtOrig ? m_fmtOrig : m_fmt.c_str(); }
1208
1209 private:
1210     // copy another character to the translated format: this function does the
1211     // copy if we are translating but doesn't do anything at all if we don't,
1212     // so we don't create the translated format string at all unless we really
1213     // need to (i.e. InsertFmtChar() is called)
1214     wxChar CopyFmtChar(wxChar ch)
1215     {
1216         if ( !m_fmtOrig )
1217         {
1218             // we're translating, do copy
1219             m_fmt += ch;
1220         }
1221         else
1222         {
1223             // simply increase the count which should be copied by
1224             // CopyAllBefore() later if needed
1225             m_nCopied++;
1226         }
1227
1228         return ch;
1229     }
1230
1231     // insert an extra character
1232     void InsertFmtChar(wxChar ch)
1233     {
1234         if ( m_fmtOrig )
1235         {
1236             // so far we haven't translated anything yet
1237             CopyAllBefore();
1238         }
1239
1240         m_fmt += ch;
1241     }
1242
1243     void CopyAllBefore()
1244     {
1245         wxASSERT_MSG( m_fmtOrig && m_fmt.empty(), _T("logic error") );
1246
1247         m_fmt = wxString(m_fmtOrig, m_nCopied);
1248
1249         // we won't need it any longer
1250         m_fmtOrig = NULL;
1251     }
1252
1253     static bool IsFlagChar(wxChar ch)
1254     {
1255         return ch == _T('-') || ch == _T('+') ||
1256                ch == _T('0') || ch == _T(' ') || ch == _T('#');
1257     }
1258
1259     void SkipDigits(const wxChar **ptpc)
1260     {
1261         while ( **ptpc >= _T('0') && **ptpc <= _T('9') )
1262             CopyFmtChar(*(*ptpc)++);
1263     }
1264
1265     // the translated format
1266     wxString m_fmt;
1267
1268     // the original format
1269     const wxChar *m_fmtOrig;
1270
1271     // the number of characters already copied
1272     size_t m_nCopied;
1273 };
1274
1275 wxFormatConverter::wxFormatConverter(const wxChar *format)
1276 {
1277     m_fmtOrig = format;
1278     m_nCopied = 0;
1279
1280     while ( *format )
1281     {
1282         if ( CopyFmtChar(*format++) == _T('%') )
1283         {
1284             // skip any flags
1285             while ( IsFlagChar(*format) )
1286                 CopyFmtChar(*format++);
1287
1288             // and possible width
1289             if ( *format == _T('*') )
1290                 CopyFmtChar(*format++);
1291             else
1292                 SkipDigits(&format);
1293
1294             // precision?
1295             if ( *format == _T('.') )
1296             {
1297                 CopyFmtChar(*format++);
1298                 if ( *format == _T('*') )
1299                     CopyFmtChar(*format++);
1300                 else
1301                     SkipDigits(&format);
1302             }
1303
1304             // next we can have a size modifier
1305             enum
1306             {
1307                 Default,
1308                 Short,
1309                 Long
1310             } size;
1311
1312             switch ( *format )
1313             {
1314                 case _T('h'):
1315                     size = Short;
1316                     format++;
1317                     break;
1318
1319                 case _T('l'):
1320                     // "ll" has a different meaning!
1321                     if ( format[1] != _T('l') )
1322                     {
1323                         size = Long;
1324                         format++;
1325                         break;
1326                     }
1327                     //else: fall through
1328
1329                 default:
1330                     size = Default;
1331             }
1332
1333             // and finally we should have the type
1334             switch ( *format )
1335             {
1336                 case _T('C'):
1337                 case _T('S'):
1338                     // %C and %hC -> %c and %lC -> %lc
1339                     if ( size == Long )
1340                         CopyFmtChar(_T('l'));
1341
1342                     InsertFmtChar(*format++ == _T('C') ? _T('c') : _T('s'));
1343                     break;
1344
1345                 case _T('c'):
1346                 case _T('s'):
1347                     // %c -> %lc but %hc stays %hc and %lc is still %lc
1348                     if ( size == Default)
1349                         InsertFmtChar(_T('l'));
1350                     // fall through
1351
1352                 default:
1353                     // nothing special to do
1354                     if ( size != Default )
1355                         CopyFmtChar(*(format - 1));
1356                     CopyFmtChar(*format++);
1357             }
1358         }
1359     }
1360 }
1361
1362 #else // !wxNEED_PRINTF_CONVERSION
1363     // no conversion necessary
1364     #define wxFormatConverter(x) (x)
1365 #endif // wxNEED_PRINTF_CONVERSION/!wxNEED_PRINTF_CONVERSION
1366
1367 #ifdef __WXDEBUG__
1368 // For testing the format converter
1369 wxString wxConvertFormat(const wxChar *format)
1370 {
1371     return wxString(wxFormatConverter(format));
1372 }
1373 #endif
1374
1375 // ----------------------------------------------------------------------------
1376 // wxPrintf(), wxScanf() and relatives
1377 // ----------------------------------------------------------------------------
1378
1379 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
1380
1381 int wxScanf( const wxChar *format, ... )
1382 {
1383     va_list argptr;
1384     va_start(argptr, format);
1385
1386     int ret = vwscanf(wxFormatConverter(format), argptr );
1387
1388     va_end(argptr);
1389
1390     return ret;
1391 }
1392
1393 int wxSscanf( const wxChar *str, const wxChar *format, ... )
1394 {
1395     va_list argptr;
1396     va_start(argptr, format);
1397
1398     int ret = vswscanf( str, wxFormatConverter(format), argptr );
1399
1400     va_end(argptr);
1401
1402     return ret;
1403 }
1404
1405 int wxFscanf( FILE *stream, const wxChar *format, ... )
1406 {
1407     va_list argptr;
1408     va_start(argptr, format);
1409     int ret = vfwscanf(stream, wxFormatConverter(format), argptr);
1410
1411     va_end(argptr);
1412
1413     return ret;
1414 }
1415
1416 int wxPrintf( const wxChar *format, ... )
1417 {
1418     va_list argptr;
1419     va_start(argptr, format);
1420
1421     int ret = vwprintf( wxFormatConverter(format), argptr );
1422
1423     va_end(argptr);
1424
1425     return ret;
1426 }
1427
1428 #ifndef wxSnprintf
1429 int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... )
1430 {
1431     va_list argptr;
1432     va_start(argptr, format);
1433
1434     int ret = vswprintf( str, size, wxFormatConverter(format), argptr );
1435
1436     va_end(argptr);
1437
1438     return ret;
1439 }
1440 #endif // wxSnprintf
1441
1442 int wxSprintf( wxChar *str, const wxChar *format, ... )
1443 {
1444     va_list argptr;
1445     va_start(argptr, format);
1446
1447     // note that wxString::FormatV() uses wxVsnprintf(), not wxSprintf(), so
1448     // it's safe to implement this one in terms of it
1449     wxString s(wxString::FormatV(format, argptr));
1450     wxStrcpy(str, s);
1451
1452     va_end(argptr);
1453
1454     return s.length();
1455 }
1456
1457 int wxFprintf( FILE *stream, const wxChar *format, ... )
1458 {
1459     va_list argptr;
1460     va_start( argptr, format );
1461
1462     int ret = vfwprintf( stream, wxFormatConverter(format), argptr );
1463
1464     va_end(argptr);
1465
1466     return ret;
1467 }
1468
1469 int wxVsscanf( const wxChar *str, const wxChar *format, va_list argptr )
1470 {
1471     return vswscanf( str, wxFormatConverter(format), argptr );
1472 }
1473
1474 int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr )
1475 {
1476     return vfwprintf( stream, wxFormatConverter(format), argptr );
1477 }
1478
1479 int wxVprintf( const wxChar *format, va_list argptr )
1480 {
1481     return vwprintf( wxFormatConverter(format), argptr );
1482 }
1483
1484 #ifndef wxVsnprintf
1485 int wxVsnprintf( wxChar *str, size_t size, const wxChar *format, va_list argptr )
1486 {
1487     return vswprintf( str, size, wxFormatConverter(format), argptr );
1488 }
1489 #endif // wxVsnprintf
1490
1491 int wxVsprintf( wxChar *str, const wxChar *format, va_list argptr )
1492 {
1493     // same as for wxSprintf()
1494     return vswprintf(str, INT_MAX / 4, wxFormatConverter(format), argptr);
1495 }
1496
1497 #endif // wxNEED_PRINTF_CONVERSION
1498
1499 #if wxUSE_WCHAR_T
1500
1501 // ----------------------------------------------------------------------------
1502 // ctype.h stuff (currently unused)
1503 // ----------------------------------------------------------------------------
1504
1505 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
1506 inline WORD wxMSW_ctype(wxChar ch)
1507 {
1508   WORD ret;
1509   GetStringTypeEx(LOCALE_USER_DEFAULT, CT_CTYPE1, &ch, 1, &ret);
1510   return ret;
1511 }
1512
1513 WXDLLEXPORT int wxIsalnum(wxChar ch) { return IsCharAlphaNumeric(ch); }
1514 WXDLLEXPORT int wxIsalpha(wxChar ch) { return IsCharAlpha(ch); }
1515 WXDLLEXPORT int wxIscntrl(wxChar ch) { return wxMSW_ctype(ch) & C1_CNTRL; }
1516 WXDLLEXPORT int wxIsdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_DIGIT; }
1517 WXDLLEXPORT int wxIsgraph(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_PUNCT|C1_ALPHA); }
1518 WXDLLEXPORT int wxIslower(wxChar ch) { return IsCharLower(ch); }
1519 WXDLLEXPORT int wxIsprint(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_SPACE|C1_PUNCT|C1_ALPHA); }
1520 WXDLLEXPORT int wxIspunct(wxChar ch) { return wxMSW_ctype(ch) & C1_PUNCT; }
1521 WXDLLEXPORT int wxIsspace(wxChar ch) { return wxMSW_ctype(ch) & C1_SPACE; }
1522 WXDLLEXPORT int wxIsupper(wxChar ch) { return IsCharUpper(ch); }
1523 WXDLLEXPORT int wxIsxdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_XDIGIT; }
1524 WXDLLEXPORT int wxTolower(wxChar ch) { return (wxChar)CharLower((LPTSTR)(ch)); }
1525 WXDLLEXPORT int wxToupper(wxChar ch) { return (wxChar)CharUpper((LPTSTR)(ch)); }
1526 #endif
1527
1528 #ifdef wxNEED_WX_MBSTOWCS
1529
1530 WXDLLEXPORT size_t wxMbstowcs (wchar_t * out, const char * in, size_t outlen)
1531 {
1532     if (!out)
1533     {
1534         size_t outsize = 0;
1535         while(*in++)
1536             outsize++;
1537         return outsize;
1538     }
1539
1540     const char* origin = in;
1541
1542     while (outlen-- && *in)
1543     {
1544         *out++ = (wchar_t) *in++;
1545     }
1546
1547     *out = '\0';
1548
1549     return in - origin;
1550 }
1551
1552 WXDLLEXPORT size_t wxWcstombs (char * out, const wchar_t * in, size_t outlen)
1553 {
1554     if (!out)
1555     {
1556         size_t outsize = 0;
1557         while(*in++)
1558             outsize++;
1559         return outsize;
1560     }
1561
1562     const wchar_t* origin = in;
1563
1564     while (outlen-- && *in)
1565     {
1566         *out++ = (char) *in++;
1567     }
1568
1569     *out = '\0';
1570
1571     return in - origin;
1572 }
1573
1574 #endif // wxNEED_WX_MBSTOWCS
1575
1576 #if defined(wxNEED_WX_CTYPE_H)
1577
1578 #include <CoreFoundation/CoreFoundation.h>
1579
1580 #define cfalnumset CFCharacterSetGetPredefined(kCFCharacterSetAlphaNumeric)
1581 #define cfalphaset CFCharacterSetGetPredefined(kCFCharacterSetLetter)
1582 #define cfcntrlset CFCharacterSetGetPredefined(kCFCharacterSetControl)
1583 #define cfdigitset CFCharacterSetGetPredefined(kCFCharacterSetDecimalDigit)
1584 //CFCharacterSetRef cfgraphset = kCFCharacterSetControl && !' '
1585 #define cflowerset CFCharacterSetGetPredefined(kCFCharacterSetLowercaseLetter)
1586 //CFCharacterSetRef cfprintset = !kCFCharacterSetControl
1587 #define cfpunctset CFCharacterSetGetPredefined(kCFCharacterSetPunctuation)
1588 #define cfspaceset CFCharacterSetGetPredefined(kCFCharacterSetWhitespaceAndNewline)
1589 #define cfupperset CFCharacterSetGetPredefined(kCFCharacterSetUppercaseLetter)
1590
1591 WXDLLEXPORT int wxIsalnum(wxChar ch) { return CFCharacterSetIsCharacterMember(cfalnumset, ch); }
1592 WXDLLEXPORT int wxIsalpha(wxChar ch) { return CFCharacterSetIsCharacterMember(cfalphaset, ch); }
1593 WXDLLEXPORT int wxIscntrl(wxChar ch) { return CFCharacterSetIsCharacterMember(cfcntrlset, ch); }
1594 WXDLLEXPORT int wxIsdigit(wxChar ch) { return CFCharacterSetIsCharacterMember(cfdigitset, ch); }
1595 WXDLLEXPORT int wxIsgraph(wxChar ch) { return !CFCharacterSetIsCharacterMember(cfcntrlset, ch) && ch != ' '; }
1596 WXDLLEXPORT int wxIslower(wxChar ch) { return CFCharacterSetIsCharacterMember(cflowerset, ch); }
1597 WXDLLEXPORT int wxIsprint(wxChar ch) { return !CFCharacterSetIsCharacterMember(cfcntrlset, ch); }
1598 WXDLLEXPORT int wxIspunct(wxChar ch) { return CFCharacterSetIsCharacterMember(cfpunctset, ch); }
1599 WXDLLEXPORT int wxIsspace(wxChar ch) { return CFCharacterSetIsCharacterMember(cfspaceset, ch); }
1600 WXDLLEXPORT int wxIsupper(wxChar ch) { return CFCharacterSetIsCharacterMember(cfupperset, ch); }
1601 WXDLLEXPORT int wxIsxdigit(wxChar ch) { return wxIsdigit(ch) || (ch>='a' && ch<='f') || (ch>='A' && ch<='F'); }
1602 WXDLLEXPORT int wxTolower(wxChar ch) { return (wxChar)tolower((char)(ch)); }
1603 WXDLLEXPORT int wxToupper(wxChar ch) { return (wxChar)toupper((char)(ch)); }
1604
1605 #endif  // wxNEED_WX_CTYPE_H
1606
1607 #ifndef wxStrdupA
1608
1609 WXDLLEXPORT char *wxStrdupA(const char *s)
1610 {
1611     return strcpy((char *)malloc(strlen(s) + 1), s);
1612 }
1613
1614 #endif // wxStrdupA
1615
1616 #ifndef wxStrdupW
1617
1618 WXDLLEXPORT wchar_t * wxStrdupW(const wchar_t *pwz)
1619 {
1620   size_t size = (wxWcslen(pwz) + 1) * sizeof(wchar_t);
1621   wchar_t *ret = (wchar_t *) malloc(size);
1622   memcpy(ret, pwz, size);
1623   return ret;
1624 }
1625
1626 #endif // wxStrdupW
1627
1628 #ifndef wxStricmp
1629 int WXDLLEXPORT wxStricmp(const wxChar *psz1, const wxChar *psz2)
1630 {
1631   register wxChar c1, c2;
1632   do {
1633     c1 = wxTolower(*psz1++);
1634     c2 = wxTolower(*psz2++);
1635   } while ( c1 && (c1 == c2) );
1636   return c1 - c2;
1637 }
1638 #endif
1639
1640 #ifndef wxStricmp
1641 int WXDLLEXPORT wxStrnicmp(const wxChar *s1, const wxChar *s2, size_t n)
1642 {
1643   // initialize the variables just to suppress stupid gcc warning
1644   register wxChar c1 = 0, c2 = 0;
1645   while (n && ((c1 = wxTolower(*s1)) == (c2 = wxTolower(*s2)) ) && c1) n--, s1++, s2++;
1646   if (n) {
1647     if (c1 < c2) return -1;
1648     if (c1 > c2) return 1;
1649   }
1650   return 0;
1651 }
1652 #endif
1653
1654 #ifndef wxSetlocale
1655 WXDLLEXPORT wxWCharBuffer wxSetlocale(int category, const wxChar *locale)
1656 {
1657     char *localeOld = setlocale(category, wxConvLibc.cWX2MB(locale));
1658
1659     return wxWCharBuffer(wxConvLibc.cMB2WC(localeOld));
1660 }
1661 #endif
1662
1663 #if wxUSE_WCHAR_T && !defined(HAVE_WCSLEN)
1664 WXDLLEXPORT size_t wxWcslen(const wchar_t *s)
1665 {
1666     size_t n = 0;
1667     while ( *s++ )
1668         n++;
1669
1670     return n;
1671 }
1672 #endif
1673
1674 // ----------------------------------------------------------------------------
1675 // string.h functions
1676 // ----------------------------------------------------------------------------
1677
1678 #ifdef wxNEED_WX_STRING_H
1679
1680 // RN:  These need to be c externed for the regex lib
1681 #ifdef __cplusplus
1682 extern "C" {
1683 #endif
1684
1685 WXDLLEXPORT wxChar * wxStrcat(wxChar *dest, const wxChar *src)
1686 {
1687   wxChar *ret = dest;
1688   while (*dest) dest++;
1689   while ((*dest++ = *src++));
1690   return ret;
1691 }
1692
1693 WXDLLEXPORT const wxChar * wxStrchr(const wxChar *s, wxChar c)
1694 {
1695     // be careful here as the terminating NUL makes part of the string
1696     while ( *s != c )
1697     {
1698         if ( !*s++ )
1699             return NULL;
1700     }
1701
1702     return s;
1703 }
1704
1705 WXDLLEXPORT int wxStrcmp(const wxChar *s1, const wxChar *s2)
1706 {
1707   while ((*s1 == *s2) && *s1) s1++, s2++;
1708   if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
1709   if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
1710   return 0;
1711 }
1712
1713 WXDLLEXPORT wxChar * wxStrcpy(wxChar *dest, const wxChar *src)
1714 {
1715   wxChar *ret = dest;
1716   while ((*dest++ = *src++));
1717   return ret;
1718 }
1719
1720 WXDLLEXPORT size_t wxStrlen_(const wxChar *s)
1721 {
1722     size_t n = 0;
1723     while ( *s++ )
1724         n++;
1725
1726     return n;
1727 }
1728
1729
1730 WXDLLEXPORT wxChar * wxStrncat(wxChar *dest, const wxChar *src, size_t n)
1731 {
1732   wxChar *ret = dest;
1733   while (*dest) dest++;
1734   while (n && (*dest++ = *src++)) n--;
1735   return ret;
1736 }
1737
1738 WXDLLEXPORT int wxStrncmp(const wxChar *s1, const wxChar *s2, size_t n)
1739 {
1740   while (n && (*s1 == *s2) && *s1) n--, s1++, s2++;
1741   if (n) {
1742     if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
1743     if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
1744   }
1745   return 0;
1746 }
1747
1748 WXDLLEXPORT wxChar * wxStrncpy(wxChar *dest, const wxChar *src, size_t n)
1749 {
1750   wxChar *ret = dest;
1751   while (n && (*dest++ = *src++)) n--;
1752   while (n) *dest++=0, n--; // the docs specify padding with zeroes
1753   return ret;
1754 }
1755
1756 WXDLLEXPORT const wxChar * wxStrpbrk(const wxChar *s, const wxChar *accept)
1757 {
1758   while (*s && !wxStrchr(accept, *s))
1759       s++;
1760
1761   return *s ? s : NULL;
1762 }
1763
1764 WXDLLEXPORT const wxChar * wxStrrchr(const wxChar *s, wxChar c)
1765 {
1766     const wxChar *ret = NULL;
1767     do
1768     {
1769         if ( *s == c )
1770             ret = s;
1771         s++;
1772     }
1773     while ( *s );
1774
1775     return ret;
1776 }
1777
1778 WXDLLEXPORT size_t wxStrspn(const wxChar *s, const wxChar *accept)
1779 {
1780   size_t len = 0;
1781   while (wxStrchr(accept, *s++)) len++;
1782   return len;
1783 }
1784
1785 WXDLLEXPORT const wxChar *wxStrstr(const wxChar *haystack, const wxChar *needle)
1786 {
1787     wxASSERT_MSG( needle != NULL, _T("NULL argument in wxStrstr") );
1788
1789     // VZ: this is not exactly the most efficient string search algorithm...
1790
1791     const size_t len = wxStrlen(needle);
1792
1793     while ( const wxChar *fnd = wxStrchr(haystack, *needle) )
1794     {
1795         if ( !wxStrncmp(fnd, needle, len) )
1796             return fnd;
1797
1798         haystack = fnd + 1;
1799     }
1800
1801     return NULL;
1802 }
1803
1804 #ifdef __cplusplus
1805 }
1806 #endif
1807
1808 WXDLLEXPORT double wxStrtod(const wxChar *nptr, wxChar **endptr)
1809 {
1810   const wxChar *start = nptr;
1811
1812   // FIXME: only correct for C locale
1813   while (wxIsspace(*nptr)) nptr++;
1814   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1815   while (wxIsdigit(*nptr)) nptr++;
1816   if (*nptr == wxT('.')) {
1817     nptr++;
1818     while (wxIsdigit(*nptr)) nptr++;
1819   }
1820   if (*nptr == wxT('E') || *nptr == wxT('e')) {
1821     nptr++;
1822     if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1823     while (wxIsdigit(*nptr)) nptr++;
1824   }
1825
1826   wxString data(nptr, nptr-start);
1827   wxWX2MBbuf dat = data.mb_str(wxConvLibc);
1828   char *rdat = wxMBSTRINGCAST dat;
1829   double ret = strtod(dat, &rdat);
1830
1831   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1832
1833   return ret;
1834 }
1835
1836 WXDLLEXPORT long int wxStrtol(const wxChar *nptr, wxChar **endptr, int base)
1837 {
1838   const wxChar *start = nptr;
1839
1840   // FIXME: only correct for C locale
1841   while (wxIsspace(*nptr)) nptr++;
1842   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1843   if (((base == 0) || (base == 16)) &&
1844       (nptr[0] == wxT('0') && nptr[1] == wxT('x'))) {
1845     nptr += 2;
1846     base = 16;
1847   }
1848   else if ((base == 0) && (nptr[0] == wxT('0'))) base = 8;
1849   else if (base == 0) base = 10;
1850
1851   while ((wxIsdigit(*nptr) && (*nptr - wxT('0') < base)) ||
1852          (wxIsalpha(*nptr) && (wxToupper(*nptr) - wxT('A') + 10 < base))) nptr++;
1853
1854   wxString data(start, nptr-start);
1855   wxWX2MBbuf dat = data.mb_str(wxConvLibc);
1856   char *rdat = wxMBSTRINGCAST dat;
1857   long int ret = strtol(dat, &rdat, base);
1858
1859   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1860
1861   return ret;
1862 }
1863
1864 WXDLLEXPORT unsigned long int wxStrtoul(const wxChar *nptr, wxChar **endptr, int base)
1865 {
1866     return (unsigned long int) wxStrtol(nptr, endptr, base);
1867 }
1868
1869 #endif // wxNEED_WX_STRING_H
1870
1871 #ifdef wxNEED_WX_STDIO_H
1872 WXDLLEXPORT FILE * wxFopen(const wxChar *path, const wxChar *mode)
1873 {
1874     char mode_buffer[10];
1875     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1876        mode_buffer[i] = (char) mode[i];
1877
1878     return fopen( wxConvFile.cWX2MB(path), mode_buffer );
1879 }
1880
1881 WXDLLEXPORT FILE * wxFreopen(const wxChar *path, const wxChar *mode, FILE *stream)
1882 {
1883     char mode_buffer[10];
1884     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1885        mode_buffer[i] = (char) mode[i];
1886
1887     return freopen( wxConvFile.cWX2MB(path), mode_buffer, stream );
1888 }
1889
1890 WXDLLEXPORT int wxRemove(const wxChar *path)
1891 {
1892     return remove( wxConvFile.cWX2MB(path) );
1893 }
1894
1895 WXDLLEXPORT int wxRename(const wxChar *oldpath, const wxChar *newpath)
1896 {
1897     return rename( wxConvFile.cWX2MB(oldpath), wxConvFile.cWX2MB(newpath) );
1898 }
1899 #endif
1900
1901 #ifndef wxAtof
1902 double   WXDLLEXPORT wxAtof(const wxChar *psz)
1903 {
1904 #ifdef __WXWINCE__
1905     double d;
1906     wxString str(psz);
1907     if (str.ToDouble(& d))
1908         return d;
1909
1910     return 0.0;
1911 #else
1912     return atof(wxConvLibc.cWX2MB(psz));
1913 #endif
1914 }
1915 #endif
1916
1917 #ifdef wxNEED_WX_STDLIB_H
1918 int      WXDLLEXPORT wxAtoi(const wxChar *psz)
1919 {
1920   return atoi(wxConvLibc.cWX2MB(psz));
1921 }
1922
1923 long     WXDLLEXPORT wxAtol(const wxChar *psz)
1924 {
1925   return atol(wxConvLibc.cWX2MB(psz));
1926 }
1927
1928 wxChar * WXDLLEXPORT wxGetenv(const wxChar *name)
1929 {
1930 #if wxUSE_UNICODE
1931     // NB: buffer returned by getenv() is allowed to be overwritten next
1932     //     time getenv() is called, so it is OK to use static string
1933     //     buffer to hold the data.
1934     static wxWCharBuffer value((wxChar*)NULL);
1935     value = wxConvLibc.cMB2WX(getenv(wxConvLibc.cWX2MB(name)));
1936     return value.data();
1937 #else
1938     return getenv(name);
1939 #endif
1940 }
1941
1942 int WXDLLEXPORT wxSystem(const wxChar *psz)
1943 {
1944     return system(wxConvLibc.cWX2MB(psz));
1945 }
1946
1947 #endif // wxNEED_WX_STDLIB_H
1948
1949 #ifdef wxNEED_WX_TIME_H
1950 WXDLLEXPORT size_t
1951 wxStrftime(wxChar *s, size_t maxsize, const wxChar *fmt, const struct tm *tm)
1952 {
1953     if ( !maxsize )
1954         return 0;
1955
1956     wxCharBuffer buf(maxsize);
1957
1958     wxCharBuffer bufFmt(wxConvLibc.cWX2MB(fmt));
1959     if ( !bufFmt )
1960         return 0;
1961
1962     size_t ret = strftime(buf.data(), maxsize, bufFmt, tm);
1963     if  ( !ret )
1964         return 0;
1965
1966     wxWCharBuffer wbuf = wxConvLibc.cMB2WX(buf);
1967     if ( !wbuf )
1968         return 0;
1969
1970     wxStrncpy(s, wbuf, maxsize);
1971     return wxStrlen(s);
1972 }
1973 #endif // wxNEED_WX_TIME_H
1974
1975 #ifndef wxCtime
1976 WXDLLEXPORT wxChar *wxCtime(const time_t *timep)
1977 {
1978     // normally the string is 26 chars but give one more in case some broken
1979     // DOS compiler decides to use "\r\n" instead of "\n" at the end
1980     static wxChar buf[27];
1981
1982     // ctime() is guaranteed to return a string containing only ASCII
1983     // characters, as its format is always the same for any locale
1984     wxStrncpy(buf, wxString::FromAscii(ctime(timep)), WXSIZEOF(buf));
1985     buf[WXSIZEOF(buf) - 1] = _T('\0');
1986
1987     return buf;
1988 }
1989 #endif // wxCtime
1990
1991 #endif // wxUSE_WCHAR_T
1992
1993 // ----------------------------------------------------------------------------
1994 // functions which we may need even if !wxUSE_WCHAR_T
1995 // ----------------------------------------------------------------------------
1996
1997 #ifndef wxStrtok
1998
1999 WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr)
2000 {
2001     if (!psz)
2002     {
2003         psz = *save_ptr;
2004         if ( !psz )
2005             return NULL;
2006     }
2007
2008     psz += wxStrspn(psz, delim);
2009     if (!*psz)
2010     {
2011         *save_ptr = (wxChar *)NULL;
2012         return (wxChar *)NULL;
2013     }
2014
2015     wxChar *ret = psz;
2016     psz = wxStrpbrk(psz, delim);
2017     if (!psz)
2018     {
2019         *save_ptr = (wxChar*)NULL;
2020     }
2021     else
2022     {
2023         *psz = wxT('\0');
2024         *save_ptr = psz + 1;
2025     }
2026
2027     return ret;
2028 }
2029
2030 #endif // wxStrtok
2031
2032 // ----------------------------------------------------------------------------
2033 // missing C RTL functions
2034 // ----------------------------------------------------------------------------
2035
2036 #ifdef wxNEED_STRDUP
2037
2038 char *strdup(const char *s)
2039 {
2040     char *dest = (char*) malloc( strlen( s ) + 1 ) ;
2041     if ( dest )
2042         strcpy( dest , s ) ;
2043     return dest ;
2044 }
2045 #endif // wxNEED_STRDUP
2046
2047 #if defined(__WXWINCE__) && (_WIN32_WCE <= 211)
2048
2049 void *calloc( size_t num, size_t size )
2050 {
2051     void** ptr = (void **)malloc(num * size);
2052     memset( ptr, 0, num * size);
2053     return ptr;
2054 }
2055
2056 #endif // __WXWINCE__ <= 211
2057
2058 #ifdef __WXWINCE__
2059
2060 int wxRemove(const wxChar *path)
2061 {
2062     return ::DeleteFile(path) == 0;
2063 }
2064
2065 #endif