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