src/common/wxchar.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wxchar.cpp
   3 // Purpose:     wxChar implementation
   4 // Author:      Ove Kåven
   5 // Modified by:
   6 // Created:     09/04/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWindows copyright
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13   #pragma implementation "wxchar.h"
  14 #endif
  15
  16 // ===========================================================================
  17 // headers, declarations, constants
  18 // ===========================================================================
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24   #pragma hdrstop
  25 #endif
  26
  27 #define _ISOC9X_SOURCE 1 // to get vsscanf()
  28 #define _BSD_SOURCE    1 // to still get strdup()
  29
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <locale.h>
  34 #include <time.h>
  35
  36 #ifndef WX_PRECOMP
  37   #include "wx/defs.h"
  38   #include "wx/wxchar.h"
  39   #include "wx/string.h"
  40   #include "wx/hash.h"
  41 #endif
  42
  43 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
  44   #include <windef.h>
  45   #include <winbase.h>
  46   #include <winnls.h>
  47   #include <winnt.h>
  48 #endif
  49
  50 #if wxUSE_WCHAR_T
  51 size_t WXDLLEXPORT wxMB2WC(wchar_t *buf, const char *psz, size_t n)
  52 {
  53   if (buf) {
  54     if (!n || !*psz) {
  55       if (n) *buf = wxT('\0');
  56       return 0;
  57     }
  58     return mbstowcs(buf, psz, n);
  59   }
  60
  61   // assume that we have mbsrtowcs() too if we have wcsrtombs()
  62 #ifdef HAVE_WCSRTOMBS
  63   mbstate_t mbstate;
  64   return mbsrtowcs((wchar_t *) NULL, &psz, 0, &mbstate);
  65 #else  // !GNU libc
  66   return mbstowcs((wchar_t *) NULL, psz, 0);
  67 #endif // GNU
  68 }
  69
  70 size_t WXDLLEXPORT wxWC2MB(char *buf, const wchar_t *pwz, size_t n)
  71 {
  72   if (buf) {
  73     if (!n || !*pwz) {
  74       // glibc2.1 chokes on null input
  75       if (n) *buf = '\0';
  76       return 0;
  77     }
  78     return wcstombs(buf, pwz, n);
  79   }
  80
  81 #if HAVE_WCSRTOMBS
  82   mbstate_t mbstate;
  83   return wcsrtombs((char *) NULL, &pwz, 0, &mbstate);
  84 #else  // !GNU libc
  85   return wcstombs((char *) NULL, pwz, 0);
  86 #endif // GNU
  87 }
  88 #endif // wxUSE_WCHAR_T
  89
  90 bool WXDLLEXPORT wxOKlibc()
  91 {
  92 #if wxUSE_WCHAR_T && defined(__UNIX__) && defined(__GLIBC__)
  93   // glibc 2.0 uses UTF-8 even when it shouldn't
  94   wchar_t res = 0;
  95   if ((MB_CUR_MAX == 2) &&
  96       (wxMB2WC(&res, "\xdd\xa5", 1) == 1) &&
  97       (res==0x765)) {
  98     // this is UTF-8 allright, check whether that's what we want
  99     char *cur_locale = setlocale(LC_CTYPE, NULL);
 100     if ((strlen(cur_locale) < 4) ||
 101             (strcasecmp(cur_locale + strlen(cur_locale) - 4, "utf8")) ||
 102             (strcasecmp(cur_locale + strlen(cur_locale) - 5, "utf-8"))) {
 103       // nope, don't use libc conversion
 104       return FALSE;
 105     }
 106   }
 107 #endif
 108   return TRUE;
 109 }
 110
 111 #ifndef HAVE_WCSLEN
 112 size_t   WXDLLEXPORT wcslen(const wchar_t *s)
 113 {
 114   size_t len = 0;
 115   while (s[len]) len++;
 116   return len;
 117 }
 118 #endif
 119
 120 // ============================================================================
 121 // printf() functions business
 122 // ============================================================================
 123
 124 // ----------------------------------------------------------------------------
 125 // implement [v]snprintf() if the system doesn't provide a safe one
 126 // ----------------------------------------------------------------------------
 127
 128 #if !defined(wxVsnprintf_)
 129 int WXDLLEXPORT wxVsnprintf_(wxChar *buf, size_t lenMax,
 130                              const wxChar *format, va_list argptr)
 131 {
 132     // buffer to avoid dynamic memory allocation each time for small strings
 133     char szScratch[1024];
 134
 135     // number of characters in the buffer so far, must be less than lenMax
 136     size_t lenCur = 0;
 137
 138     for (size_t n = 0; format[n]; n++)
 139     {
 140         if (format[n] == wxT('%')) {
 141             static char s_szFlags[256] = "%";
 142             size_t flagofs = 1;
 143             bool adj_left = FALSE,
 144                  in_prec = FALSE,
 145                  prec_dot = FALSE,
 146                  done = FALSE;
 147             int ilen = 0;
 148             size_t min_width = 0,
 149                    max_width = wxSTRING_MAXLEN;
 150             do {
 151
 152 #define CHECK_PREC \
 153                 if (in_prec && !prec_dot) \
 154                 { \
 155                     s_szFlags[flagofs++] = '.'; \
 156                     prec_dot = TRUE; \
 157                 }
 158
 159 #define APPEND_CH(ch) \
 160                 if ( lenCur == lenMax ) \
 161                     return -1; \
 162                 \
 163                 buf[lenCur++] = ch
 164
 165 #define APPEND_STR(s) \
 166                 { \
 167                     for ( const wxChar *p = s; *p; p++ ) \
 168                     { \
 169                         APPEND_CH(*p); \
 170                     } \
 171                 }
 172
 173                 switch (format[++n]) {
 174                     case wxT('\0'):
 175                         APPEND_CH(_T('\0'));
 176
 177                         done = TRUE;
 178                         break;
 179
 180                     case wxT('%'):
 181                         APPEND_CH(_T('%'));
 182                         done = TRUE;
 183                         break;
 184
 185                     case wxT('#'):
 186                     case wxT('0'):
 187                     case wxT(' '):
 188                     case wxT('+'):
 189                     case wxT('\''):
 190                         CHECK_PREC
 191                         s_szFlags[flagofs++] = format[n];
 192                         break;
 193
 194                     case wxT('-'):
 195                         CHECK_PREC
 196                         adj_left = TRUE;
 197                         s_szFlags[flagofs++] = format[n];
 198                         break;
 199
 200                     case wxT('.'):
 201                         CHECK_PREC
 202                             in_prec = TRUE;
 203                         prec_dot = FALSE;
 204                         max_width = 0;
 205                         // dot will be auto-added to s_szFlags if non-negative number follows
 206                         break;
 207
 208                     case wxT('h'):
 209                         ilen = -1;
 210                         CHECK_PREC
 211                         s_szFlags[flagofs++] = format[n];
 212                         break;
 213
 214                     case wxT('l'):
 215                         ilen = 1;
 216                         CHECK_PREC
 217                         s_szFlags[flagofs++] = format[n];
 218                         break;
 219
 220                     case wxT('q'):
 221                     case wxT('L'):
 222                         ilen = 2;
 223                         CHECK_PREC
 224                         s_szFlags[flagofs++] = format[n];
 225                         break;
 226
 227                     case wxT('Z'):
 228                         ilen = 3;
 229                         CHECK_PREC
 230                         s_szFlags[flagofs++] = format[n];
 231                         break;
 232
 233                     case wxT('*'):
 234                         {
 235                             int len = va_arg(argptr, int);
 236                             if (in_prec) {
 237                                 if (len<0) break;
 238                                 CHECK_PREC
 239                                     max_width = len;
 240                             } else {
 241                                 if (len<0) {
 242                                     adj_left = !adj_left;
 243                                     s_szFlags[flagofs++] = '-';
 244                                     len = -len;
 245                                 }
 246                                 min_width = len;
 247                             }
 248                             flagofs += ::sprintf(s_szFlags+flagofs,"%d",len);
 249                         }
 250                         break;
 251
 252                     case wxT('1'): case wxT('2'): case wxT('3'):
 253                     case wxT('4'): case wxT('5'): case wxT('6'):
 254                     case wxT('7'): case wxT('8'): case wxT('9'):
 255                         {
 256                             int len = 0;
 257                             CHECK_PREC
 258                                 while ((format[n]>=wxT('0')) && (format[n]<=wxT('9'))) {
 259                                     s_szFlags[flagofs++] = format[n];
 260                                     len = len*10 + (format[n] - wxT('0'));
 261                                     n++;
 262                                 }
 263                             if (in_prec) max_width = len;
 264                             else min_width = len;
 265                             n--; // the main loop pre-increments n again
 266                         }
 267                         break;
 268
 269                     case wxT('d'):
 270                     case wxT('i'):
 271                     case wxT('o'):
 272                     case wxT('u'):
 273                     case wxT('x'):
 274                     case wxT('X'):
 275                         CHECK_PREC
 276                         s_szFlags[flagofs++] = format[n];
 277                         s_szFlags[flagofs] = '\0';
 278                         if (ilen == 0 ) {
 279                             int val = va_arg(argptr, int);
 280                             ::sprintf(szScratch, s_szFlags, val);
 281                         }
 282                         else if (ilen == -1) {
 283                             short int val = va_arg(argptr, short int);
 284                             ::sprintf(szScratch, s_szFlags, val);
 285                         }
 286                         else if (ilen == 1) {
 287                             long int val = va_arg(argptr, long int);
 288                             ::sprintf(szScratch, s_szFlags, val);
 289                         }
 290                         else if (ilen == 2) {
 291 #if SIZEOF_LONG_LONG
 292                             long long int val = va_arg(argptr, long long int);
 293                             ::sprintf(szScratch, s_szFlags, val);
 294 #else
 295                             long int val = va_arg(argptr, long int);
 296                             ::sprintf(szScratch, s_szFlags, val);
 297 #endif
 298                         }
 299                         else if (ilen == 3) {
 300                             size_t val = va_arg(argptr, size_t);
 301                             ::sprintf(szScratch, s_szFlags, val);
 302                         }
 303
 304                         APPEND_STR(wxConvLibc.cMB2WX(szScratch));
 305
 306                         done = TRUE;
 307                         break;
 308
 309                     case wxT('e'):
 310                     case wxT('E'):
 311                     case wxT('f'):
 312                     case wxT('g'):
 313                     case wxT('G'):
 314                         CHECK_PREC
 315                         s_szFlags[flagofs++] = format[n];
 316                         s_szFlags[flagofs] = '\0';
 317                         if (ilen == 2) {
 318                             long double val = va_arg(argptr, long double);
 319                             ::sprintf(szScratch, s_szFlags, val);
 320                         } else {
 321                             double val = va_arg(argptr, double);
 322                             ::sprintf(szScratch, s_szFlags, val);
 323                         }
 324
 325                         APPEND_STR(wxConvLibc.cMB2WX(szScratch));
 326
 327                         done = TRUE;
 328                         break;
 329
 330                     case wxT('p'):
 331                         {
 332                             void *val = va_arg(argptr, void *);
 333                             CHECK_PREC
 334                                 s_szFlags[flagofs++] = format[n];
 335                             s_szFlags[flagofs] = '\0';
 336                             ::sprintf(szScratch, s_szFlags, val);
 337
 338                             APPEND_STR(wxConvLibc.cMB2WX(szScratch));
 339
 340                             done = TRUE;
 341                         }
 342                         break;
 343
 344                     case wxT('c'):
 345                         {
 346                             wxChar val = va_arg(argptr, int);
 347                             // we don't need to honor padding here, do we?
 348                             APPEND_CH(val);
 349
 350                             done = TRUE;
 351                         }
 352                         break;
 353
 354                     case wxT('s'):
 355                         if (ilen == -1) {
 356                             // wx extension: we'll let %hs mean non-Unicode strings
 357                             char *val = va_arg(argptr, char *);
 358 #if wxUSE_UNICODE
 359                             // ASCII->Unicode constructor handles max_width right
 360                             wxString s(val, wxConvLibc, max_width);
 361 #else
 362                             size_t len = wxSTRING_MAXLEN;
 363                             if (val) {
 364                                 for (len = 0; val[len] && (len<max_width); len++);
 365                             } else val = wxT("(null)");
 366                             wxString s(val, len);
 367 #endif
 368                             if (s.Len() < min_width)
 369                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 370
 371                             APPEND_STR(s);
 372                         } else {
 373                             wxChar *val = va_arg(argptr, wxChar *);
 374                             size_t len = wxSTRING_MAXLEN;
 375                             if (val) {
 376                                 for (len = 0; val[len] && (len<max_width); len++);
 377                             } else val = wxT("(null)");
 378                             wxString s(val, len);
 379                             if (s.Len() < min_width)
 380                                 s.Pad(min_width - s.Len(), wxT(' '), adj_left);
 381
 382                             APPEND_STR(s);
 383                         }
 384                         done = TRUE;
 385                         break;
 386
 387                     case wxT('n'):
 388                         if (ilen == 0) {
 389                             int *val = va_arg(argptr, int *);
 390                             *val = lenCur;
 391                         }
 392                         else if (ilen == -1) {
 393                             short int *val = va_arg(argptr, short int *);
 394                             *val = lenCur;
 395                         }
 396                         else if (ilen >= 1) {
 397                             long int *val = va_arg(argptr, long int *);
 398                             *val = lenCur;
 399                         }
 400                         done = TRUE;
 401                         break;
 402
 403                     default:
 404                         if (wxIsalpha(format[n]))
 405                             // probably some flag not taken care of here yet
 406                             s_szFlags[flagofs++] = format[n];
 407                         else {
 408                             // bad format
 409                             APPEND_CH(_T('%')); // just to pass the glibc tst-printf.c
 410                             n--;
 411                             done = TRUE;
 412                         }
 413                         break;
 414                 }
 415             } while (!done);
 416         }
 417         else
 418         {
 419             APPEND_CH(format[n]);
 420         }
 421     }
 422
 423     return lenCur;
 424 }
 425
 426 #undef APPEND_CH
 427 #undef APPEND_STR
 428 #undef CHECK_PREC
 429
 430 #endif // !wxVsnprintfA
 431
 432 #if !defined(wxSnprintf_)
 433 int WXDLLEXPORT wxSnprintf_(wxChar *buf, size_t len, const wxChar *format, ...)
 434 {
 435     va_list argptr;
 436     va_start(argptr, format);
 437
 438     int iLen = wxVsnprintf_(buf, len, format, argptr);
 439
 440     va_end(argptr);
 441
 442     return iLen;
 443 }
 444 #endif // wxSnprintf_
 445
 446 // ----------------------------------------------------------------------------
 447 // implement the standard IO functions for wide char if libc doesn't have them
 448 // ----------------------------------------------------------------------------
 449
 450 #ifdef wxNEED_FPUTWC
 451
 452 int wxFputs(const wchar_t *ws, FILE *stream)
 453 {
 454     // counting the number of wide characters written isn't worth the trouble,
 455     // simply distinguish between ok and error
 456     return fputs(wxConvLibc.cWC2MB(ws), stream) == -1 ? -1 : 0;
 457 }
 458
 459 int /* not wint_t */ wxPutc(wchar_t wc, FILE *stream)
 460 {
 461     wchar_t ws[2] = { wc, L'\0' };
 462
 463     return wxFputs(ws, stream);
 464 }
 465
 466 #endif // wxNEED_FPUTWC
 467
 468 // NB: we only implement va_list functions here, the ones taking ... are
 469 //     defined below for wxNEED_PRINTF_CONVERSION case anyhow and we reuse
 470 //     the definitions there to avoid duplicating them here
 471 #ifdef wxNEED_WPRINTF
 472
 473 // TODO: implement the scanf() functions
 474 int vwscanf(const wchar_t *format, va_list argptr)
 475 {
 476     wxFAIL_MSG( _T("TODO") );
 477
 478     return -1;
 479 }
 480
 481 int vswscanf(const wchar_t *ws, const wchar_t *format, va_list argptr)
 482 {
 483     wxFAIL_MSG( _T("TODO") );
 484
 485     return -1;
 486 }
 487
 488 int vfwscanf(FILE *stream, const wchar_t *format, va_list argptr)
 489 {
 490     wxFAIL_MSG( _T("TODO") );
 491
 492     return -1;
 493 }
 494
 495 #define vswprintf wxVsnprintf_
 496
 497 int vfwprintf(FILE *stream, const wchar_t *format, va_list argptr)
 498 {
 499     wxString s;
 500     int rc = s.PrintfV(format, argptr);
 501
 502     if ( rc != -1 )
 503     {
 504         // we can't do much better without Unicode support in libc...
 505         if ( fprintf(stream, s.mb_str()) == -1 )
 506             return -1;
 507     }
 508
 509     return rc;
 510 }
 511
 512 int vwprintf(const wchar_t *format, va_list argptr)
 513 {
 514     return wxVfprintf(stdout, format, argptr);
 515 }
 516
 517 #endif // wxNEED_WPRINTF
 518
 519 #ifdef wxNEED_PRINTF_CONVERSION
 520
 521 // ----------------------------------------------------------------------------
 522 // wxFormatConverter: class doing the "%s" -> "%ls" conversion
 523 // ----------------------------------------------------------------------------
 524
 525 /*
 526    Here are the gory details. We want to follow the Windows/MS conventions,
 527    that is to have
 528
 529    In ANSI mode:
 530
 531    format specifier         results in
 532    -----------------------------------
 533    %c, %hc, %hC             char
 534    %lc, %C, %lC             wchar_t
 535
 536    In Unicode mode:
 537
 538    format specifier         results in
 539    -----------------------------------
 540    %hc, %C, %hC             char
 541    %c, %lc, %lC             wchar_t
 542
 543
 544    while on POSIX systems we have %C identical to %lc and %c always means char
 545    (in any mode) while %lc always means wchar_t,
 546
 547    So to use native functions in order to get our semantics we must do the
 548    following translations in Unicode mode (nothing to do in ANSI mode):
 549
 550    wxWindows specifier      POSIX specifier
 551    ----------------------------------------
 552
 553    %hc, %C, %hC             %c
 554    %c                       %lc
 555
 556
 557    And, of course, the same should be done for %s as well.
 558 */
 559
 560 class wxFormatConverter
 561 {
 562 public:
 563     wxFormatConverter(const wxChar *format);
 564
 565     // notice that we only translated the string if m_fmtOrig == NULL (as set
 566     // by CopyAllBefore()), otherwise we should simply use the original format
 567     operator const wxChar *() const
 568         { return m_fmtOrig ? m_fmtOrig : m_fmt.c_str(); }
 569
 570 private:
 571     // copy another character to the translated format: this function does the
 572     // copy if we are translating but doesn't do anything at all if we don't,
 573     // so we don't create the translated format string at all unless we really
 574     // need to (i.e. InsertFmtChar() is called)
 575     wxChar CopyFmtChar(wxChar ch)
 576     {
 577         if ( !m_fmtOrig )
 578         {
 579             // we're translating, do copy
 580             m_fmt += ch;
 581         }
 582         else
 583         {
 584             // simply increase the count which should be copied by
 585             // CopyAllBefore() later if needed
 586             m_nCopied++;
 587         }
 588
 589         return ch;
 590     }
 591
 592     // insert an extra character
 593     void InsertFmtChar(wxChar ch)
 594     {
 595         if ( m_fmtOrig )
 596         {
 597             // so far we haven't translated anything yet
 598             CopyAllBefore();
 599         }
 600
 601         m_fmt += ch;
 602     }
 603
 604     void CopyAllBefore()
 605     {
 606         wxASSERT_MSG( m_fmtOrig && m_fmt.empty(), _T("logic error") );
 607
 608         m_fmt = wxString(m_fmtOrig, m_nCopied);
 609
 610         // we won't need it any longer
 611         m_fmtOrig = NULL;
 612     }
 613
 614     static bool IsFlagChar(wxChar ch)
 615     {
 616         return ch == _T('-') || ch == _T('+') ||
 617                ch == _T('0') || ch == _T(' ') || ch == _T('#');
 618     }
 619
 620     void SkipDigits(const wxChar **ppc)
 621     {
 622         while ( **ppc >= _T('0') && **ppc <= _T('9') )
 623             CopyFmtChar(*(*ppc)++);
 624     }
 625
 626     // the translated format
 627     wxString m_fmt;
 628
 629     // the original format
 630     const wxChar *m_fmtOrig;
 631
 632     // the number of characters already copied
 633     size_t m_nCopied;
 634 };
 635
 636 wxFormatConverter::wxFormatConverter(const wxChar *format)
 637 {
 638     m_fmtOrig = format;
 639     m_nCopied = 0;
 640
 641     while ( *format )
 642     {
 643         if ( CopyFmtChar(*format++) == _T('%') )
 644         {
 645             // skip any flags
 646             while ( IsFlagChar(*format) )
 647                 CopyFmtChar(*format++);
 648
 649             // and possible width
 650             if ( *format == _T('*') )
 651                 CopyFmtChar(*format++);
 652             else
 653                 SkipDigits(&format);
 654
 655             // precision?
 656             if ( *format == _T('.') )
 657             {
 658                 SkipDigits(&format);
 659             }
 660
 661             // next we can have a size modifier
 662             enum
 663             {
 664                 Default,
 665                 Short,
 666                 Long
 667             } size;
 668
 669             switch ( *format )
 670             {
 671                 case _T('h'):
 672                     size = Short;
 673                     format++;
 674                     break;
 675
 676                 case _T('l'):
 677                     // "ll" has a different meaning!
 678                     if ( format[1] != _T('l') )
 679                     {
 680                         size = Long;
 681                         format++;
 682                         break;
 683                     }
 684                     //else: fall through
 685
 686                 default:
 687                     size = Default;
 688             }
 689
 690             // and finally we should have the type
 691             switch ( *format )
 692             {
 693                 case _T('C'):
 694                 case _T('S'):
 695                     // %C and %hC -> %c and %lC -> %lc
 696                     if ( size == Long )
 697                         CopyFmtChar(_T('l'));
 698
 699                     InsertFmtChar(*format++ == _T('C') ? _T('c') : _T('s'));
 700                     break;
 701
 702                 case _T('c'):
 703                 case _T('s'):
 704                     // %c -> %lc but %hc stays %hc and %lc is still %lc
 705                     switch ( size )
 706                     {
 707                         case Default:
 708                             InsertFmtChar(_T('l'));
 709                             break;
 710
 711                         case Short:
 712                             CopyFmtChar(_T('h'));
 713                             break;
 714
 715                         case Long:
 716                             ;
 717                     }
 718                     // fall through
 719
 720                 default:
 721                     // nothing special to do
 722                     CopyFmtChar(*format++);
 723             }
 724         }
 725     }
 726 }
 727
 728 #else // !wxNEED_PRINTF_CONVERSION
 729     // no conversion necessary
 730     #define wxFormatConverter(x) (x)
 731 #endif // wxNEED_PRINTF_CONVERSION/!wxNEED_PRINTF_CONVERSION
 732
 733 // ----------------------------------------------------------------------------
 734 // wxPrintf(), wxScanf() and relatives
 735 // ----------------------------------------------------------------------------
 736
 737 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
 738
 739 int wxScanf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
 740 {
 741     va_list argptr;
 742     va_start(argptr, format);
 743
 744     int ret = vwscanf(wxFormatConverter(format), argptr );
 745
 746     va_end(argptr);
 747
 748     return ret;
 749 }
 750
 751 int wxSscanf( const wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 752 {
 753     va_list argptr;
 754     va_start(argptr, format);
 755
 756     int ret = vswscanf( str, wxFormatConverter(format), argptr );
 757
 758     va_end(argptr);
 759
 760     return ret;
 761 }
 762
 763 int wxFscanf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 764 {
 765     va_list argptr;
 766     va_start(argptr, format);
 767
 768     int ret = vfwscanf(stream, wxFormatConverter(format), argptr);
 769
 770     va_end(argptr);
 771
 772     return ret;
 773 }
 774
 775 int wxPrintf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_2
 776 {
 777     va_list argptr;
 778     va_start(argptr, format);
 779
 780     int ret = vwprintf( wxFormatConverter(format), argptr );
 781
 782     va_end(argptr);
 783
 784     return ret;
 785 }
 786
 787 #ifndef wxSnprintf
 788 int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... ) ATTRIBUTE_PRINTF_4
 789 {
 790     va_list argptr;
 791     va_start(argptr, format);
 792
 793     int ret = vswprintf( str, size, wxFormatConverter(format), argptr );
 794
 795     va_end(argptr);
 796
 797     return ret;
 798 }
 799 #endif // wxSnprintf
 800
 801 int wxSprintf( wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 802 {
 803     va_list argptr;
 804     va_start(argptr, format);
 805
 806     // callers of wxSprintf() deserve what they get
 807     int ret = vswprintf( str, UINT_MAX, wxFormatConverter(format), argptr );
 808
 809     va_end(argptr);
 810
 811     return ret;
 812 }
 813
 814 int wxFprintf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3
 815 {
 816     va_list argptr;
 817     va_start( argptr, format );
 818
 819     int ret = vfwprintf( stream, wxFormatConverter(format), argptr );
 820
 821     va_end(argptr);
 822
 823     return ret;
 824 }
 825
 826 int wxVsscanf( const wxChar *str, const wxChar *format, va_list argptr )
 827 {
 828     return vswscanf( str, wxFormatConverter(format), argptr );
 829 }
 830
 831 int wxVfprintf( FILE *stream, const wxChar *format, va_list argptr )
 832 {
 833     return vfwprintf( stream, wxFormatConverter(format), argptr );
 834 }
 835
 836 int wxVprintf( const wxChar *format, va_list argptr )
 837 {
 838     return vwprintf( wxFormatConverter(format), argptr );
 839 }
 840
 841 #ifndef wxVsnprintf
 842 int wxVsnprintf( wxChar *str, size_t size, const wxChar *format, va_list argptr )
 843 {
 844     return vswprintf( str, size, wxFormatConverter(format), argptr );
 845 }
 846 #endif // wxVsnprintf
 847
 848 int wxVsprintf( wxChar *str, const wxChar *format, va_list argptr )
 849 {
 850     // same as for wxSprintf()
 851     return vswprintf(str, UINT_MAX, wxFormatConverter(format), argptr);
 852 }
 853
 854 #endif // wxNEED_PRINTF_CONVERSION
 855
 856 // ----------------------------------------------------------------------------
 857 // ctype.h stuff (currently unused)
 858 // ----------------------------------------------------------------------------
 859
 860 #if defined(__WIN32__) && defined(wxNEED_WX_CTYPE_H)
 861 inline WORD wxMSW_ctype(wxChar ch)
 862 {
 863   WORD ret;
 864   GetStringTypeEx(LOCALE_USER_DEFAULT, CT_CTYPE1, &ch, 1, &ret);
 865   return ret;
 866 }
 867
 868 WXDLLEXPORT int wxIsalnum(wxChar ch) { return IsCharAlphaNumeric(ch); }
 869 WXDLLEXPORT int wxIsalpha(wxChar ch) { return IsCharAlpha(ch); }
 870 WXDLLEXPORT int wxIsctrl(wxChar ch) { return wxMSW_ctype(ch) & C1_CNTRL; }
 871 WXDLLEXPORT int wxIsdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_DIGIT; }
 872 WXDLLEXPORT int wxIsgraph(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_PUNCT|C1_ALPHA); }
 873 WXDLLEXPORT int wxIslower(wxChar ch) { return IsCharLower(ch); }
 874 WXDLLEXPORT int wxIsprint(wxChar ch) { return wxMSW_ctype(ch) & (C1_DIGIT|C1_SPACE|C1_PUNCT|C1_ALPHA); }
 875 WXDLLEXPORT int wxIspunct(wxChar ch) { return wxMSW_ctype(ch) & C1_PUNCT; }
 876 WXDLLEXPORT int wxIsspace(wxChar ch) { return wxMSW_ctype(ch) & C1_SPACE; }
 877 WXDLLEXPORT int wxIsupper(wxChar ch) { return IsCharUpper(ch); }
 878 WXDLLEXPORT int wxIsxdigit(wxChar ch) { return wxMSW_ctype(ch) & C1_XDIGIT; }
 879 WXDLLEXPORT int wxTolower(wxChar ch) { return (wxChar)CharLower((LPTSTR)(ch)); }
 880 WXDLLEXPORT int wxToupper(wxChar ch) { return (wxChar)CharUpper((LPTSTR)(ch)); }
 881 #endif
 882
 883 #ifndef wxStrdup
 884 WXDLLEXPORT wxChar * wxStrdup(const wxChar *psz)
 885 {
 886   size_t size = (wxStrlen(psz) + 1) * sizeof(wxChar);
 887   wxChar *ret = (wxChar *) malloc(size);
 888   memcpy(ret, psz, size);
 889   return ret;
 890 }
 891 #endif
 892
 893 #ifndef wxStricmp
 894 int WXDLLEXPORT wxStricmp(const wxChar *psz1, const wxChar *psz2)
 895 {
 896   register wxChar c1, c2;
 897   do {
 898     c1 = wxTolower(*psz1++);
 899     c2 = wxTolower(*psz2++);
 900   } while ( c1 && (c1 == c2) );
 901   return c1 - c2;
 902 }
 903 #endif
 904
 905 #ifndef wxStricmp
 906 int WXDLLEXPORT wxStrnicmp(const wxChar *s1, const wxChar *s2, size_t n)
 907 {
 908   register wxChar c1, c2;
 909   while (n && ((c1 = wxTolower(*s1)) == (c2 = wxTolower(*s2)) ) && c1) n--, s1++, s2++;
 910   if (n) {
 911     if (c1 < c2) return -1;
 912     if (c1 > c2) return 1;
 913   }
 914   return 0;
 915 }
 916 #endif
 917
 918 #ifndef wxStrtok
 919 WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr)
 920 {
 921   if (!psz) psz = *save_ptr;
 922   psz += wxStrspn(psz, delim);
 923   if (!*psz) {
 924     *save_ptr = (wxChar *)NULL;
 925     return (wxChar *)NULL;
 926   }
 927   wxChar *ret = psz;
 928   psz = wxStrpbrk(psz, delim);
 929   if (!psz) *save_ptr = (wxChar*)NULL;
 930   else {
 931     *psz = wxT('\0');
 932     *save_ptr = psz + 1;
 933   }
 934   return ret;
 935 }
 936 #endif
 937
 938 #ifndef wxSetlocale
 939 WXDLLEXPORT wxWCharBuffer wxSetlocale(int category, const wxChar *locale)
 940 {
 941     char *localeOld = setlocale(category, wxConvLocal.cWX2MB(locale));
 942
 943     return wxWCharBuffer(wxConvLocal.cMB2WC(localeOld));
 944 }
 945 #endif
 946
 947 // ----------------------------------------------------------------------------
 948 // string.h functions
 949 // ----------------------------------------------------------------------------
 950
 951 #ifdef wxNEED_WX_STRING_H
 952 WXDLLEXPORT wxChar * wxStrcat(wxChar *dest, const wxChar *src)
 953 {
 954   wxChar *ret = dest;
 955   while (*dest) dest++;
 956   while ((*dest++ = *src++));
 957   return ret;
 958 }
 959
 960 WXDLLEXPORT const wxChar * wxStrchr(const wxChar *s, wxChar c)
 961 {
 962     // be careful here as the terminating NUL makes part of the string
 963     while ( *s != c )
 964     {
 965         if ( !*s++ )
 966             return NULL;
 967     }
 968
 969     return s;
 970 }
 971
 972 WXDLLEXPORT int wxStrcmp(const wxChar *s1, const wxChar *s2)
 973 {
 974   while ((*s1 == *s2) && *s1) s1++, s2++;
 975   if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
 976   if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
 977   return 0;
 978 }
 979
 980 WXDLLEXPORT wxChar * wxStrcpy(wxChar *dest, const wxChar *src)
 981 {
 982   wxChar *ret = dest;
 983   while ((*dest++ = *src++));
 984   return ret;
 985 }
 986
 987 WXDLLEXPORT wxChar * wxStrncat(wxChar *dest, const wxChar *src, size_t n)
 988 {
 989   wxChar *ret = dest;
 990   while (*dest) dest++;
 991   while (n && (*dest++ = *src++)) n--;
 992   return ret;
 993 }
 994
 995 WXDLLEXPORT int wxStrncmp(const wxChar *s1, const wxChar *s2, size_t n)
 996 {
 997   while (n && (*s1 == *s2) && *s1) n--, s1++, s2++;
 998   if (n) {
 999     if ((wxUChar)*s1 < (wxUChar)*s2) return -1;
1000     if ((wxUChar)*s1 > (wxUChar)*s2) return 1;
1001   }
1002   return 0;
1003 }
1004
1005 WXDLLEXPORT wxChar * wxStrncpy(wxChar *dest, const wxChar *src, size_t n)
1006 {
1007   wxChar *ret = dest;
1008   while (n && (*dest++ = *src++)) n--;
1009   while (n) *dest++=0, n--; // the docs specify padding with zeroes
1010   return ret;
1011 }
1012
1013 WXDLLEXPORT const wxChar * wxStrpbrk(const wxChar *s, const wxChar *accept)
1014 {
1015   while (*s && !wxStrchr(accept, *s))
1016       s++;
1017
1018   return *s ? s : NULL;
1019 }
1020
1021 WXDLLEXPORT const wxChar * wxStrrchr(const wxChar *s, wxChar c)
1022 {
1023     const wxChar *ret = NULL;
1024     do
1025     {
1026         if ( *s == c )
1027             ret = s;
1028         s++;
1029     }
1030     while ( *s );
1031
1032     return ret;
1033 }
1034
1035 WXDLLEXPORT size_t wxStrspn(const wxChar *s, const wxChar *accept)
1036 {
1037   size_t len = 0;
1038   while (wxStrchr(accept, *s++)) len++;
1039   return len;
1040 }
1041
1042 WXDLLEXPORT const wxChar *wxStrstr(const wxChar *haystack, const wxChar *needle)
1043 {
1044     wxCHECK_RET( needle, NULL, _T("NULL argument in wxStrstr") );
1045
1046     // VZ: this is not exactly the most efficient string search algorithm...
1047
1048     const size_t len = wxStrlen(needle);
1049
1050     while ( const wxChar *fnd = wxStrchr(haystack, *needle) )
1051     {
1052         if ( !wxStrncmp(fnd, needle, len) )
1053             return fnd;
1054
1055         haystack = fnd + 1;
1056     }
1057
1058     return NULL;
1059 }
1060
1061 WXDLLEXPORT double wxStrtod(const wxChar *nptr, wxChar **endptr)
1062 {
1063   const wxChar *start = nptr;
1064
1065   // FIXME: only correct for C locale
1066   while (wxIsspace(*nptr)) nptr++;
1067   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1068   while (wxIsdigit(*nptr)) nptr++;
1069   if (*nptr == wxT('.')) {
1070     nptr++;
1071     while (wxIsdigit(*nptr)) nptr++;
1072   }
1073   if (*nptr == wxT('E') || *nptr == wxT('e')) {
1074     nptr++;
1075     if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1076     while (wxIsdigit(*nptr)) nptr++;
1077   }
1078
1079   wxString data(nptr, nptr-start);
1080   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1081   char *rdat = wxMBSTRINGCAST dat;
1082   double ret = strtod(dat, &rdat);
1083
1084   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1085
1086   return ret;
1087 }
1088
1089 WXDLLEXPORT long int wxStrtol(const wxChar *nptr, wxChar **endptr, int base)
1090 {
1091   const wxChar *start = nptr;
1092
1093   // FIXME: only correct for C locale
1094   while (wxIsspace(*nptr)) nptr++;
1095   if (*nptr == wxT('+') || *nptr == wxT('-')) nptr++;
1096   if (((base == 0) || (base == 16)) &&
1097       (nptr[0] == wxT('0') && nptr[1] == wxT('x'))) {
1098     nptr += 2;
1099     base = 16;
1100   }
1101   else if ((base == 0) && (nptr[0] == wxT('0'))) base = 8;
1102   else if (base == 0) base = 10;
1103
1104   while ((wxIsdigit(*nptr) && (*nptr - wxT('0') < base)) ||
1105          (wxIsalpha(*nptr) && (wxToupper(*nptr) - wxT('A') + 10 < base))) nptr++;
1106
1107   wxString data(nptr, nptr-start);
1108   wxWX2MBbuf dat = data.mb_str(wxConvLocal);
1109   char *rdat = wxMBSTRINGCAST dat;
1110   long int ret = strtol(dat, &rdat, base);
1111
1112   if (endptr) *endptr = (wxChar *)(start + (rdat - (const char *)dat));
1113
1114   return ret;
1115 }
1116 #endif // wxNEED_WX_STRING_H
1117
1118 #ifdef wxNEED_WX_STDIO_H
1119 WXDLLEXPORT FILE * wxFopen(const wxChar *path, const wxChar *mode)
1120 {
1121     char mode_buffer[10];
1122     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1123        mode_buffer[i] = (char) mode[i];
1124
1125     return fopen( wxConvFile.cWX2MB(path), mode_buffer );
1126 }
1127
1128 WXDLLEXPORT FILE * wxFreopen(const wxChar *path, const wxChar *mode, FILE *stream)
1129 {
1130     char mode_buffer[10];
1131     for (size_t i = 0; i < wxStrlen(mode)+1; i++)
1132        mode_buffer[i] = (char) mode[i];
1133
1134     return freopen( wxConvFile.cWX2MB(path), mode_buffer, stream );
1135 }
1136
1137 WXDLLEXPORT int wxRemove(const wxChar *path)
1138 {
1139     return remove( wxConvFile.cWX2MB(path) );
1140 }
1141
1142 WXDLLEXPORT int wxRename(const wxChar *oldpath, const wxChar *newpath)
1143 {
1144     return rename( wxConvFile.cWX2MB(oldpath), wxConvFile.cWX2MB(newpath) );
1145 }
1146 #endif
1147
1148 #ifndef wxAtof
1149 double   WXDLLEXPORT wxAtof(const wxChar *psz)
1150 {
1151   return atof(wxConvLocal.cWX2MB(psz));
1152 }
1153 #endif
1154
1155 #ifdef wxNEED_WX_STDLIB_H
1156 int      WXDLLEXPORT wxAtoi(const wxChar *psz)
1157 {
1158   return atoi(wxConvLocal.cWX2MB(psz));
1159 }
1160
1161 long     WXDLLEXPORT wxAtol(const wxChar *psz)
1162 {
1163   return atol(wxConvLocal.cWX2MB(psz));
1164 }
1165
1166 wxChar * WXDLLEXPORT wxGetenv(const wxChar *name)
1167 {
1168   static wxHashTable env;
1169
1170   // check if we already have stored the converted env var
1171   wxObject *data = env.Get(name);
1172   if (!data)
1173   {
1174     // nope, retrieve it,
1175 #if wxUSE_UNICODE
1176     wxCharBuffer buffer = wxConvLocal.cWX2MB(name);
1177     // printf( "buffer %s\n", (const char*) buffer );
1178     const char *val = getenv( (const char *)buffer );
1179 #else
1180     const char *val = getenv( name );
1181 #endif
1182
1183     if (!val) return (wxChar *)NULL;
1184     // printf( "home %s\n", val );
1185
1186     // convert it,
1187 #ifdef wxUSE_UNICODE
1188     data = (wxObject *)new wxString(val, wxConvLocal);
1189 #else
1190     data = (wxObject *)new wxString(val);
1191 #endif
1192
1193     // and store it
1194     env.Put(name, data);
1195   }
1196   // return converted env var
1197   return (wxChar *)((wxString *)data)->c_str();
1198 }
1199
1200 int WXDLLEXPORT wxSystem(const wxChar *psz)
1201 {
1202     return system(wxConvLocal.cWX2MB(psz));
1203 }
1204
1205 #endif
1206
1207 #ifdef wxNEED_WX_TIME_H
1208 WXDLLEXPORT size_t   wxStrftime(wxChar *s, size_t max, const wxChar *fmt, const struct tm *tm)
1209 {
1210     if (!max) return 0;
1211
1212     char *buf = (char *)malloc(max);
1213     size_t ret = strftime(buf, max, wxConvLocal.cWX2MB(fmt), tm);
1214     if (ret)
1215     {
1216         wxStrcpy(s, wxConvLocal.cMB2WX(buf));
1217         free(buf);
1218         return wxStrlen(s);
1219     }
1220     else
1221     {
1222         free(buf);
1223         *s = 0;
1224         return 0;
1225   }
1226 }
1227 #endif