misc/lstr.c

   1 /*
   2  * String functions
   3  *
   4  * Copyright 1993 Yngvi Sigurjonsson (yngvi@hafro.is)
   5  * Copyright 1996 Marcus Meissner
   6  */
   7
   8 #include "config.h"
   9
  10 #include <stdarg.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <ctype.h>
  14
  15 #ifdef HAVE_WCTYPE_H
  16 # include <wctype.h>
  17 #else
  18 # define iswalnum(c) isalnum(c)
  19 # define iswalpha(c) isalpha(c)
  20 # define iswupper(c) isupper(c)
  21 # define iswlower(c) islower(c)
  22 #endif  /* HAVE_WCTYPE_H */
  23
  24
  25 #include "windows.h"
  26 #include "winnt.h"      /* HEAP_ macros */
  27 #include "task.h"
  28 #include "heap.h"
  29 #include "ldt.h"
  30 #include "stackframe.h"
  31 #include "module.h"
  32 #include "debug.h"
  33
  34 extern const WORD OLE2NLS_CT_CType3_LUT[]; /* FIXME: does not belong here */
  35
  36
  37 /* Funny to divide them between user and kernel. */
  38
  39 /* be careful: always use functions from wctype.h if character > 255 */
  40
  41 /*
  42  * Unicode case conversion routines ... these should be used where
  43  * toupper/tolower are used for ASCII.
  44  */
  45 #ifndef HAVE_WCTYPE_H
  46 /* FIXME: should probably get rid of wctype.h altogether */
  47 #include "casemap.h"
  48
  49 WCHAR towupper(WCHAR code)
  50 {
  51     const WCHAR * ptr = uprtable[HIBYTE(code)];
  52     return ptr ? ptr[LOBYTE(code)] : code;
  53 }
  54
  55 WCHAR towlower(WCHAR code)
  56 {
  57     const WCHAR * ptr = lwrtable[HIBYTE(code)];
  58     return ptr ? ptr[LOBYTE(code)] : code;
  59 }
  60 #endif  /* HAVE_WCTYPE_H */
  61
  62 /***********************************************************************
  63  *              IsCharAlpha (USER.433)
  64  */
  65 BOOL16 WINAPI IsCharAlpha16(CHAR ch)
  66 {
  67   return isalpha(ch);   /* This is probably not right for NLS */
  68 }
  69
  70 /***********************************************************************
  71  *              IsCharAlphanumeric (USER.434)
  72  */
  73 BOOL16 WINAPI IsCharAlphaNumeric16(CHAR ch)
  74 {
  75     return isalnum(ch);
  76 }
  77
  78 /***********************************************************************
  79  *              IsCharUpper (USER.435)
  80  */
  81 BOOL16 WINAPI IsCharUpper16(CHAR ch)
  82 {
  83   return isupper(ch);
  84 }
  85
  86 /***********************************************************************
  87  *              IsCharLower (USER.436)
  88  */
  89 BOOL16 WINAPI IsCharLower16(CHAR ch)
  90 {
  91   return islower(ch);
  92 }
  93
  94 /***********************************************************************
  95  *           AnsiUpper16   (USER.431)
  96  */
  97 SEGPTR WINAPI AnsiUpper16( SEGPTR strOrChar )
  98 {
  99   /* I am not sure if the locale stuff works with toupper, but then again
 100      I am not sure if the Linux libc locale stuffs works at all */
 101
 102     /* uppercase only one char if strOrChar < 0x10000 */
 103     if (HIWORD(strOrChar))
 104     {
 105         char *s;
 106         for (s = PTR_SEG_TO_LIN(strOrChar); *s; s++) *s = toupper(*s);
 107         return strOrChar;
 108     }
 109     else return toupper((char)strOrChar);
 110 }
 111
 112
 113 /***********************************************************************
 114  *           AnsiUpperBuff16   (USER.437)
 115  */
 116 UINT16 WINAPI AnsiUpperBuff16( LPSTR str, UINT16 len )
 117 {
 118     UINT32 count = len ? len : 65536;
 119     for (; count; count--, str++) *str = toupper(*str);
 120     return len;
 121 }
 122
 123 /***********************************************************************
 124  *           AnsiLower16   (USER.432)
 125  */
 126 SEGPTR WINAPI AnsiLower16( SEGPTR strOrChar )
 127 {
 128   /* I am not sure if the locale stuff works with toupper, but then again
 129      I am not sure if the Linux libc locale stuffs works at all */
 130
 131     /* lowercase only one char if strOrChar < 0x10000 */
 132     if (HIWORD(strOrChar))
 133     {
 134         char *s;
 135         for (s = PTR_SEG_TO_LIN( strOrChar ); *s; s++) *s = tolower( *s );
 136         return strOrChar;
 137     }
 138     else return tolower((char)strOrChar);
 139 }
 140
 141
 142 /***********************************************************************
 143  *           AnsiLowerBuff16   (USER.438)
 144  */
 145 UINT16 WINAPI AnsiLowerBuff16( LPSTR str, UINT16 len )
 146 {
 147     UINT32 count = len ? len : 65536;
 148     for (; count; count--, str++) *str = tolower(*str);
 149     return len;
 150 }
 151
 152
 153 /***********************************************************************
 154  *           AnsiNext16   (USER.472)
 155  */
 156 SEGPTR WINAPI AnsiNext16(SEGPTR current)
 157 {
 158     return (*(char *)PTR_SEG_TO_LIN(current)) ? current + 1 : current;
 159 }
 160
 161
 162 /***********************************************************************
 163  *           AnsiPrev16   (USER.473)
 164  */
 165 SEGPTR WINAPI AnsiPrev16( SEGPTR start, SEGPTR current )
 166 {
 167     return (current == start) ? start : current - 1;
 168 }
 169
 170
 171 /***********************************************************************
 172  *           OutputDebugString16   (KERNEL.115)
 173  */
 174 void WINAPI OutputDebugString16( LPCSTR str )
 175 {
 176     char module[10];
 177     if (!GetModuleName( GetCurrentTask(), module, sizeof(module) ))
 178         strcpy( module, "???" );
 179
 180     DUMP( "%s says %s\n", module, debugstr_a(str) );
 181 }
 182
 183
 184 /***********************************************************************
 185  *           OutputDebugString32A   (KERNEL32
 186  */
 187 void WINAPI OutputDebugString32A( LPCSTR str )
 188 {
 189     OutputDebugString16( str );
 190 }
 191
 192
 193
 194 /***********************************************************************
 195  *           OutputDebugString32W   (KERNEL32
 196  */
 197 void WINAPI OutputDebugString32W( LPCWSTR str )
 198 {
 199     LPSTR p = HEAP_strdupWtoA( GetProcessHeap(), 0, str );
 200     OutputDebugString32A( p );
 201     HeapFree( GetProcessHeap(), 0, p );
 202 }
 203
 204
 205
 206 /***********************************************************************
 207  *           CharNext32A   (USER32.29)
 208  */
 209 LPSTR WINAPI CharNext32A( LPCSTR ptr )
 210 {
 211     if (!*ptr) return (LPSTR)ptr;
 212     if (IsDBCSLeadByte32( *ptr )) return (LPSTR)(ptr + 2);
 213     return (LPSTR)(ptr + 1);
 214 }
 215
 216
 217 /***********************************************************************
 218  *           CharNextEx32A   (USER32.30)
 219  */
 220 LPSTR WINAPI CharNextEx32A( WORD codepage, LPCSTR ptr, DWORD flags )
 221 {
 222     if (!*ptr) return (LPSTR)ptr;
 223     if (IsDBCSLeadByteEx( codepage, *ptr )) return (LPSTR)(ptr + 2);
 224     return (LPSTR)(ptr + 1);
 225 }
 226
 227
 228 /***********************************************************************
 229  *           CharNextExW   (USER32.31)
 230  */
 231 LPWSTR WINAPI CharNextEx32W(WORD codepage,LPCWSTR x,DWORD flags)
 232 {
 233     /* FIXME: add DBCS / codepage stuff */
 234     if (*x) return (LPWSTR)(x+1);
 235     else return (LPWSTR)x;
 236 }
 237
 238 /***********************************************************************
 239  *           CharNextW   (USER32.32)
 240  */
 241 LPWSTR WINAPI CharNext32W(LPCWSTR x)
 242 {
 243     if (*x) return (LPWSTR)(x+1);
 244     else return (LPWSTR)x;
 245 }
 246
 247 /***********************************************************************
 248  *           CharPrev32A   (USER32.33)
 249  */
 250 LPSTR WINAPI CharPrev32A( LPCSTR start, LPCSTR ptr )
 251 {
 252     while (*start && (start < ptr))
 253     {
 254         LPCSTR next = CharNext32A( start );
 255         if (next >= ptr) break;
 256         start = next;
 257     }
 258     return (LPSTR)start;
 259 }
 260
 261
 262 /***********************************************************************
 263  *           CharPrevEx32A   (USER32.34)
 264  */
 265 LPSTR WINAPI CharPrevEx32A( WORD codepage, LPCSTR start, LPCSTR ptr, DWORD flags )
 266 {
 267     while (*start && (start < ptr))
 268     {
 269         LPCSTR next = CharNextEx32A( codepage, start, flags );
 270         if (next > ptr) break;
 271         start = next;
 272     }
 273     return (LPSTR)start;
 274 }
 275
 276
 277 /***********************************************************************
 278  *           CharPrevExW   (USER32.35)
 279  */
 280 LPWSTR WINAPI CharPrevEx32W(WORD codepage,LPCWSTR start,LPCWSTR x,DWORD flags)
 281 {
 282     /* FIXME: add DBCS / codepage stuff */
 283     if (x>start) return (LPWSTR)(x-1);
 284     else return (LPWSTR)x;
 285 }
 286
 287 /***********************************************************************
 288  *           CharPrevW   (USER32.36)
 289  */
 290 LPWSTR WINAPI CharPrev32W(LPCWSTR start,LPCWSTR x)
 291 {
 292     if (x>start) return (LPWSTR)(x-1);
 293     else return (LPWSTR)x;
 294 }
 295
 296 /***********************************************************************
 297  *           CharLowerA   (USER32.25)
 298  * FIXME: handle current locale
 299  */
 300 LPSTR WINAPI CharLower32A(LPSTR x)
 301 {
 302     LPSTR       s;
 303
 304     if (HIWORD(x))
 305     {
 306         s=x;
 307         while (*s)
 308         {
 309             *s=tolower(*s);
 310             s++;
 311         }
 312         return x;
 313     }
 314     else return (LPSTR)tolower((char)(int)x);
 315 }
 316
 317 /***********************************************************************
 318  *           CharLowerBuffA   (USER32.26)
 319  * FIXME: handle current locale
 320  */
 321 DWORD WINAPI CharLowerBuff32A(LPSTR x,DWORD buflen)
 322 {
 323     DWORD done=0;
 324
 325     if (!x) return 0; /* YES */
 326     while (*x && (buflen--))
 327     {
 328         *x=tolower(*x);
 329         x++;
 330         done++;
 331     }
 332     return done;
 333 }
 334
 335 /***********************************************************************
 336  *           CharLowerBuffW   (USER32.27)
 337  * FIXME: handle current locale
 338  */
 339 DWORD WINAPI CharLowerBuff32W(LPWSTR x,DWORD buflen)
 340 {
 341     DWORD done=0;
 342
 343     if (!x) return 0; /* YES */
 344     while (*x && (buflen--))
 345     {
 346         *x=towlower(*x);
 347         x++;
 348         done++;
 349     }
 350     return done;
 351 }
 352
 353 /***********************************************************************
 354  *           CharLowerW   (USER32.28)
 355  * FIXME: handle current locale
 356  */
 357 LPWSTR WINAPI CharLower32W(LPWSTR x)
 358 {
 359     if (HIWORD(x))
 360     {
 361         LPWSTR s = x;
 362         while (*s)
 363         {
 364             *s=towlower(*s);
 365             s++;
 366         }
 367         return x;
 368     }
 369     else return (LPWSTR)((UINT32)towlower(LOWORD(x)));
 370 }
 371
 372 /***********************************************************************
 373  *           CharUpper32A   (USER32.41)
 374  * FIXME: handle current locale
 375  */
 376 LPSTR WINAPI CharUpper32A(LPSTR x)
 377 {
 378     if (HIWORD(x))
 379     {
 380         LPSTR s = x;
 381         while (*s)
 382         {
 383             *s=toupper(*s);
 384             s++;
 385         }
 386         return x;
 387     }
 388     return (LPSTR)toupper((char)(int)x);
 389 }
 390
 391 /***********************************************************************
 392  *           CharUpperBuffA   (USER32.42)
 393  * FIXME: handle current locale
 394  */
 395 DWORD WINAPI CharUpperBuff32A(LPSTR x,DWORD buflen)
 396 {
 397     DWORD done=0;
 398
 399     if (!x) return 0; /* YES */
 400     while (*x && (buflen--))
 401     {
 402         *x=toupper(*x);
 403         x++;
 404         done++;
 405     }
 406     return done;
 407 }
 408
 409 /***********************************************************************
 410  *           CharUpperBuffW   (USER32.43)
 411  * FIXME: handle current locale
 412  */
 413 DWORD WINAPI CharUpperBuff32W(LPWSTR x,DWORD buflen)
 414 {
 415     DWORD done=0;
 416
 417     if (!x) return 0; /* YES */
 418     while (*x && (buflen--))
 419     {
 420         *x=towupper(*x);
 421         x++;
 422         done++;
 423     }
 424     return done;
 425 }
 426
 427 /***********************************************************************
 428  *           CharUpperW   (USER32.44)
 429  * FIXME: handle current locale
 430  */
 431 LPWSTR WINAPI CharUpper32W(LPWSTR x)
 432 {
 433     if (HIWORD(x))
 434     {
 435         LPWSTR s = x;
 436         while (*s)
 437         {
 438             *s=towupper(*s);
 439             s++;
 440         }
 441         return x;
 442     }
 443     else return (LPWSTR)((UINT32)towupper(LOWORD(x)));
 444 }
 445
 446 /***********************************************************************
 447  *           IsCharAlphaA   (USER32.331)
 448  * FIXME: handle current locale
 449  */
 450 BOOL32 WINAPI IsCharAlpha32A(CHAR x)
 451 {
 452     return (OLE2NLS_CT_CType3_LUT[(unsigned char)x] & C3_ALPHA);
 453 }
 454
 455 /***********************************************************************
 456  *           IsCharAlphaNumericA   (USER32.332)
 457  * FIXME: handle current locale
 458  */
 459 BOOL32 WINAPI IsCharAlphaNumeric32A(CHAR x)
 460 {
 461     return IsCharAlpha32A(x) || isdigit(x) ;
 462 }
 463
 464 /***********************************************************************
 465  *           IsCharAlphaNumericW   (USER32.333)
 466  * FIXME: handle current locale
 467  */
 468 BOOL32 WINAPI IsCharAlphaNumeric32W(WCHAR x)
 469 {
 470     return iswalnum(x);
 471 }
 472
 473 /***********************************************************************
 474  *           IsCharAlphaW   (USER32.334)
 475  * FIXME: handle current locale
 476  */
 477 BOOL32 WINAPI IsCharAlpha32W(WCHAR x)
 478 {
 479     return iswalpha(x);
 480 }
 481
 482 /***********************************************************************
 483  *           IsCharLower32A   (USER32.335)
 484  * FIXME: handle current locale
 485  */
 486 BOOL32 WINAPI IsCharLower32A(CHAR x)
 487 {
 488     return islower(x);
 489 }
 490
 491 /***********************************************************************
 492  *           IsCharLower32W   (USER32.336)
 493  * FIXME: handle current locale
 494  */
 495 BOOL32 WINAPI IsCharLower32W(WCHAR x)
 496 {
 497     return iswlower(x);
 498 }
 499
 500 /***********************************************************************
 501  *           IsCharUpper32A   (USER32.337)
 502  * FIXME: handle current locale
 503  */
 504 BOOL32 WINAPI IsCharUpper32A(CHAR x)
 505 {
 506     return isupper(x);
 507 }
 508
 509 /***********************************************************************
 510  *           IsCharUpper32W   (USER32.338)
 511  * FIXME: handle current locale
 512  */
 513 BOOL32 WINAPI IsCharUpper32W(WCHAR x)
 514 {
 515     return iswupper(x);
 516 }
 517
 518 /***********************************************************************
 519  *           FormatMessage16   (USER.606)
 520  */
 521 DWORD WINAPI FormatMessage16(
 522     DWORD   dwFlags,
 523     LPCVOID lpSource,
 524     WORD   dwMessageId,
 525     WORD   dwLanguageId,
 526     LPSTR   lpBuffer,
 527     WORD   nSize,
 528     LPDWORD args /* va_list *args */
 529 ) {
 530     return FormatMessage32A(dwFlags, lpSource, (DWORD)dwMessageId, (DWORD)dwLanguageId, lpBuffer, (DWORD)nSize, args);
 531 }
 532
 533 /***********************************************************************
 534  *           FormatMessage32A   (KERNEL32.138)
 535  * FIXME: missing wrap,FROM_SYSTEM message-loading,
 536  */
 537 DWORD WINAPI FormatMessage32A(
 538         DWORD   dwFlags,
 539         LPCVOID lpSource,
 540         DWORD   dwMessageId,
 541         DWORD   dwLanguageId,
 542         LPSTR   lpBuffer,
 543         DWORD   nSize,
 544         LPDWORD args /* va_list *args */
 545 ) {
 546         LPSTR   target,t;
 547         DWORD   talloced;
 548         LPSTR   from,f;
 549         DWORD   width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
 550         DWORD   nolinefeed = 0;
 551
 552         TRACE(resource, "(0x%lx,%p,%ld,0x%lx,%p,%ld,%p)\n",
 553                      dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
 554         if (width)
 555                 FIXME(resource,"line wrapping not supported.\n");
 556         from = NULL;
 557         if (dwFlags & FORMAT_MESSAGE_FROM_STRING)
 558                 from = HEAP_strdupA( GetProcessHeap(), 0, (LPSTR)lpSource);
 559         if (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM) {
 560                 from = HeapAlloc( GetProcessHeap(),0,200 );
 561                 sprintf(from,"Systemmessage, messageid = 0x%08lx\n",dwMessageId);
 562         }
 563         if (dwFlags & FORMAT_MESSAGE_FROM_HMODULE) {
 564                 INT32   bufsize;
 565
 566                 dwMessageId &= 0xFFFF;
 567                 bufsize=LoadMessage32A((HMODULE32)lpSource,dwMessageId,dwLanguageId,NULL,100);
 568                 if (bufsize) {
 569                         from = HeapAlloc( GetProcessHeap(), 0, bufsize + 1 );
 570                         LoadMessage32A((HMODULE32)lpSource,dwMessageId,dwLanguageId,from,bufsize+1);
 571                 }
 572         }
 573         target  = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100);
 574         t       = target;
 575         talloced= 100;
 576
 577 #define ADD_TO_T(c) \
 578         *t++=c;\
 579         if (t-target == talloced) {\
 580                 target  = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2);\
 581                 t       = target+talloced;\
 582                 talloced*=2;\
 583         }
 584
 585         if (from) {
 586                 f=from;
 587                 while (*f && !nolinefeed) {
 588                         if (*f=='%') {
 589                                 int     insertnr;
 590                                 char    *fmtstr,*sprintfbuf,*x,*lastf;
 591                                 DWORD   *argliststart;
 592
 593                                 fmtstr = NULL;
 594                                 lastf = f;
 595                                 f++;
 596                                 if (!*f) {
 597                                         ADD_TO_T('%');
 598                                         continue;
 599                                 }
 600                                 switch (*f) {
 601                                 case '1':case '2':case '3':case '4':case '5':
 602                                 case '6':case '7':case '8':case '9':
 603                                         insertnr=*f-'0';
 604                                         switch (f[1]) {
 605                                         case '0':case '1':case '2':case '3':
 606                                         case '4':case '5':case '6':case '7':
 607                                         case '8':case '9':
 608                                                 f++;
 609                                                 insertnr=insertnr*10+*f-'0';
 610                                                 f++;
 611                                                 break;
 612                                         default:
 613                                                 f++;
 614                                                 break;
 615                                         }
 616                                         if (*f=='!') {
 617                                                 f++;
 618                                                 if (NULL!=(x=strchr(f,'!'))) {
 619                                                         *x='\0';
 620                                                         fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f)+2);
 621                                                         sprintf(fmtstr,"%%%s",f);
 622                                                         f=x+1;
 623                                                 } else {
 624                                                         fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f));
 625                                                         sprintf(fmtstr,"%%%s",f);
 626                                                         f+=strlen(f); /*at \0*/
 627                                                 }
 628                                         } else
 629                                                 if(!args)
 630                                                   break;
 631                                         else
 632                                                 fmtstr=HEAP_strdupA(GetProcessHeap(),0,"%s");
 633                                         if (args) {
 634                                                 if (dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)
 635                                                         argliststart=args+insertnr-1;
 636                                                 else
 637                                                     argliststart=(*(DWORD**)args)+insertnr-1;
 638
 639                                                 if (fmtstr[strlen(fmtstr)-1]=='s')
 640                                                         sprintfbuf=HeapAlloc(GetProcessHeap(),0,strlen((LPSTR)argliststart[0])+1);
 641                                                 else
 642                                                         sprintfbuf=HeapAlloc(GetProcessHeap(),0,100);
 643
 644                                                 /* CMF - This makes a BIG assumption about va_list */
 645                                                 wvsprintf32A(sprintfbuf, fmtstr, (va_list) argliststart);
 646                                                 x=sprintfbuf;
 647                                                 while (*x) {
 648                                                         ADD_TO_T(*x++);
 649                                                 }
 650                                                 HeapFree(GetProcessHeap(),0,sprintfbuf);
 651                                         } else {
 652                                                 /* NULL args - copy formatstr
 653                                                  * (probably wrong)
 654                                                  */
 655                                                 while ((lastf<f)&&(*lastf)) {
 656                                                         ADD_TO_T(*lastf++);
 657                                                 }
 658                                         }
 659                                         HeapFree(GetProcessHeap(),0,fmtstr);
 660                                         break;
 661                                 case 'n':
 662                                         /* FIXME: perhaps add \r too? */
 663                                         ADD_TO_T('\n');
 664                                         f++;
 665                                         break;
 666                                 case '0':
 667                                         nolinefeed=1;
 668                                         f++;
 669                                         break;
 670                                 default:ADD_TO_T(*f++)
 671                                         break;
 672
 673                                 }
 674                         } else {
 675                                 ADD_TO_T(*f++)
 676                         }
 677                 }
 678                 *t='\0';
 679         }
 680         if (!nolinefeed) {
 681             /* add linefeed */
 682             if(t==target || t[-1]!='\n')
 683                 ADD_TO_T('\n'); /* FIXME: perhaps add \r too? */
 684         }
 685         talloced = strlen(target)+1;
 686         if (nSize && talloced<nSize) {
 687                 target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize);
 688         }
 689     TRACE(resource,"-- %s\n",debugstr_a(target));
 690         if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
 691                 /* nSize is the MINIMUM size */
 692                 *((LPVOID*)lpBuffer) = (LPVOID)LocalAlloc32(GMEM_ZEROINIT,talloced);
 693                 memcpy(*(LPSTR*)lpBuffer,target,talloced);
 694         } else
 695                 strncpy(lpBuffer,target,nSize);
 696         HeapFree(GetProcessHeap(),0,target);
 697         if (from) HeapFree(GetProcessHeap(),0,from);
 698         return (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
 699                         strlen(*(LPSTR*)lpBuffer):
 700                         strlen(lpBuffer);
 701 }
 702 #undef ADD_TO_T
 703
 704
 705 /***********************************************************************
 706  *           FormatMessage32W   (KERNEL32.138)
 707  */
 708 DWORD WINAPI FormatMessage32W(
 709         DWORD   dwFlags,
 710         LPCVOID lpSource,
 711         DWORD   dwMessageId,
 712         DWORD   dwLanguageId,
 713         LPWSTR  lpBuffer,
 714         DWORD   nSize,
 715         LPDWORD args /* va_list *args */
 716 ) {
 717         LPSTR   target,t;
 718         DWORD   talloced;
 719         LPSTR   from,f;
 720         DWORD   width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
 721         DWORD   nolinefeed = 0;
 722
 723         TRACE(resource, "(0x%lx,%p,%ld,0x%lx,%p,%ld,%p)\n",
 724                      dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
 725         if (width)
 726                 FIXME(resource,"line wrapping not supported.\n");
 727         from = NULL;
 728         if (dwFlags & FORMAT_MESSAGE_FROM_STRING)
 729                 from = HEAP_strdupWtoA(GetProcessHeap(),0,(LPWSTR)lpSource);
 730         if (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM) {
 731                 /* gather information from system message tables ... */
 732                 from = HeapAlloc( GetProcessHeap(),0,200 );
 733                 sprintf(from,"Systemmessage, messageid = 0x%08lx\n",dwMessageId);
 734         }
 735         if (dwFlags & FORMAT_MESSAGE_FROM_HMODULE) {
 736                 INT32   bufsize;
 737
 738                 dwMessageId &= 0xFFFF;
 739                 bufsize=LoadMessage32A((HMODULE32)lpSource,dwMessageId,dwLanguageId,NULL,100);
 740                 if (bufsize)
 741                 {
 742                     from = HeapAlloc( GetProcessHeap(), 0, bufsize + 1 );
 743                     LoadMessage32A((HMODULE32)lpSource,dwMessageId,dwLanguageId,from,bufsize+1);
 744                 }
 745         }
 746         target  = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100 );
 747         t       = target;
 748         talloced= 100;
 749
 750 #define ADD_TO_T(c) \
 751         *t++=c;\
 752         if (t-target == talloced) {\
 753                 target  = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2);\
 754                 t       = target+talloced;\
 755                 talloced*=2;\
 756         }
 757
 758         if (from) {
 759                 f=from;
 760                 while (*f && !nolinefeed) {
 761                         if (*f=='%') {
 762                                 int     insertnr;
 763                                 char    *fmtstr,*sprintfbuf,*x;
 764                                 DWORD   *argliststart;
 765
 766                                 fmtstr = NULL;
 767                                 f++;
 768                                 if (!*f) {
 769                                         ADD_TO_T('%');
 770                                         continue;
 771                                 }
 772                                 switch (*f) {
 773                                 case '1':case '2':case '3':case '4':case '5':
 774                                 case '6':case '7':case '8':case '9':
 775                                         insertnr=*f-'0';
 776                                         switch (f[1]) {
 777                                         case '0':case '1':case '2':case '3':
 778                                         case '4':case '5':case '6':case '7':
 779                                         case '8':case '9':
 780                                                 f++;
 781                                                 insertnr=insertnr*10+*f-'0';
 782                                                 f++;
 783                                                 break;
 784                                         default:
 785                                                 f++;
 786                                                 break;
 787                                         }
 788                                         if (*f=='!') {
 789                                                 f++;
 790                                                 if (NULL!=(x=strchr(f,'!')))
 791                                                 {
 792                                                     *x='\0';
 793                                                     fmtstr=HeapAlloc( GetProcessHeap(), 0, strlen(f)+2);
 794                                                         sprintf(fmtstr,"%%%s",f);
 795                                                         f=x+1;
 796                                                 } else {
 797                                                         fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f));
 798                                                         sprintf(fmtstr,"%%%s",f);
 799                                                         f+=strlen(f); /*at \0*/
 800                                                 }
 801                                         } else
 802                                                 if(!args)
 803                                                   break;
 804                                         else
 805                                                 fmtstr=HEAP_strdupA( GetProcessHeap(),0,"%s");
 806                                         if (dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)
 807                                                 argliststart=args+insertnr-1;
 808                                         else
 809                                                 argliststart=(*(DWORD**)args)+insertnr-1;
 810
 811                                         if (fmtstr[strlen(fmtstr)-1]=='s') {
 812                                                 DWORD   xarr[3];
 813
 814                                                 xarr[0]=(DWORD)HEAP_strdupWtoA(GetProcessHeap(),0,(LPWSTR)(*(argliststart+0)));
 815                                                 /* possible invalid pointers */
 816                                                 xarr[1]=*(argliststart+1);
 817                                                 xarr[2]=*(argliststart+2);
 818                                                 sprintfbuf=HeapAlloc(GetProcessHeap(),0,lstrlen32W((LPWSTR)argliststart[0])*2+1);
 819
 820                                                 /* CMF - This makes a BIG assumption about va_list */
 821                                                 vsprintf(sprintfbuf, fmtstr, (va_list) xarr);
 822                                         } else {
 823                                                 sprintfbuf=HeapAlloc(GetProcessHeap(),0,100);
 824
 825                                                 /* CMF - This makes a BIG assumption about va_list */
 826                                                 wvsprintf32A(sprintfbuf, fmtstr, (va_list) argliststart);
 827                                         }
 828                                         x=sprintfbuf;
 829                                         while (*x) {
 830                                                 ADD_TO_T(*x++);
 831                                         }
 832                                         HeapFree(GetProcessHeap(),0,sprintfbuf);
 833                                         HeapFree(GetProcessHeap(),0,fmtstr);
 834                                         break;
 835                                 case 'n':
 836                                         /* FIXME: perhaps add \r too? */
 837                                         ADD_TO_T('\n');
 838                                         f++;
 839                                         break;
 840                                 case '0':
 841                                         nolinefeed=1;
 842                                         f++;
 843                                         break;
 844                                 default:ADD_TO_T(*f++)
 845                                         break;
 846
 847                                 }
 848                         } else {
 849                                 ADD_TO_T(*f++)
 850                         }
 851                 }
 852                 *t='\0';
 853         }
 854         if (!nolinefeed) {
 855             /* add linefeed */
 856             if(t==target || t[-1]!='\n')
 857                 ADD_TO_T('\n'); /* FIXME: perhaps add \r too? */
 858         }
 859         talloced = strlen(target)+1;
 860         if (nSize && talloced<nSize)
 861                 target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize);
 862         if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
 863                 /* nSize is the MINIMUM size */
 864                 *((LPVOID*)lpBuffer) = (LPVOID)LocalAlloc32(GMEM_ZEROINIT,talloced*2+2);
 865                 lstrcpynAtoW(*(LPWSTR*)lpBuffer,target,talloced);
 866         } else
 867                 lstrcpynAtoW(lpBuffer,target,nSize);
 868         HeapFree(GetProcessHeap(),0,target);
 869         if (from) HeapFree(GetProcessHeap(),0,from);
 870         return (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
 871                         lstrlen32W(*(LPWSTR*)lpBuffer):
 872                         lstrlen32W(lpBuffer);
 873 }
 874 #undef ADD_TO_T