dlls/user/lstr.c

   1 /*
   2  * USER string functions
   3  *
   4  * Copyright 1993 Yngvi Sigurjonsson (yngvi@hafro.is)
   5  * Copyright 1996 Alexandre Julliard
   6  * Copyright 1996 Marcus Meissner
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #include <ctype.h>
  27 #include <stdarg.h>
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winerror.h"
  35 #include "ntstatus.h"
  36
  37 #include "wine/exception.h"
  38 #include "wine/unicode.h"
  39 #include "wine/winbase16.h"
  40 #include "wine/winuser16.h"
  41
  42 #include "excpt.h"
  43
  44 #include "wine/debug.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(resource);
  47
  48 /* filter for page-fault exceptions */
  49 static WINE_EXCEPTION_FILTER(page_fault)
  50 {
  51     if (GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION ||
  52         GetExceptionCode() == EXCEPTION_PRIV_INSTRUCTION)
  53         return EXCEPTION_EXECUTE_HANDLER;
  54     return EXCEPTION_CONTINUE_SEARCH;
  55 }
  56
  57 /***********************************************************************
  58  *           AnsiToOem   (KEYBOARD.5)
  59  */
  60 INT16 WINAPI AnsiToOem16( LPCSTR s, LPSTR d )
  61 {
  62     CharToOemA( s, d );
  63     return -1;
  64 }
  65
  66
  67 /***********************************************************************
  68  *           OemToAnsi   (KEYBOARD.6)
  69  */
  70 INT16 WINAPI OemToAnsi16( LPCSTR s, LPSTR d )
  71 {
  72     OemToCharA( s, d );
  73     return -1;
  74 }
  75
  76
  77 /***********************************************************************
  78  *           AnsiToOemBuff   (KEYBOARD.134)
  79  */
  80 void WINAPI AnsiToOemBuff16( LPCSTR s, LPSTR d, UINT16 len )
  81 {
  82     if (len != 0) CharToOemBuffA( s, d, len );
  83 }
  84
  85
  86 /***********************************************************************
  87  *           OemToAnsiBuff   (KEYBOARD.135)
  88  */
  89 void WINAPI OemToAnsiBuff16( LPCSTR s, LPSTR d, UINT16 len )
  90 {
  91     if (len != 0) OemToCharBuffA( s, d, len );
  92 }
  93
  94
  95 /***********************************************************************
  96  *           lstrcmp   (USER.430)
  97  */
  98 INT16 WINAPI lstrcmp16( LPCSTR str1, LPCSTR str2 )
  99 {
 100     return (INT16)strcmp( str1, str2 );
 101 }
 102
 103
 104 /***********************************************************************
 105  *           AnsiUpper   (USER.431)
 106  */
 107 SEGPTR WINAPI AnsiUpper16( SEGPTR strOrChar )
 108 {
 109     /* uppercase only one char if strOrChar < 0x10000 */
 110     if (HIWORD(strOrChar))
 111     {
 112         CharUpperA( MapSL(strOrChar) );
 113         return strOrChar;
 114     }
 115     else return toupper((char)strOrChar);
 116 }
 117
 118
 119 /***********************************************************************
 120  *           AnsiLower   (USER.432)
 121  */
 122 SEGPTR WINAPI AnsiLower16( SEGPTR strOrChar )
 123 {
 124     /* lowercase only one char if strOrChar < 0x10000 */
 125     if (HIWORD(strOrChar))
 126     {
 127         CharLowerA( MapSL(strOrChar) );
 128         return strOrChar;
 129     }
 130     else return tolower((char)strOrChar);
 131 }
 132
 133
 134 /***********************************************************************
 135  *           AnsiUpperBuff   (USER.437)
 136  */
 137 UINT16 WINAPI AnsiUpperBuff16( LPSTR str, UINT16 len )
 138 {
 139     CharUpperBuffA( str, len ? len : 65536 );
 140     return len;
 141 }
 142
 143
 144 /***********************************************************************
 145  *           AnsiLowerBuff   (USER.438)
 146  */
 147 UINT16 WINAPI AnsiLowerBuff16( LPSTR str, UINT16 len )
 148 {
 149     CharLowerBuffA( str, len ? len : 65536 );
 150     return len;
 151 }
 152
 153
 154 /***********************************************************************
 155  *           AnsiNext   (USER.472)
 156  */
 157 SEGPTR WINAPI AnsiNext16(SEGPTR current)
 158 {
 159     char *ptr = MapSL(current);
 160     return current + (CharNextA(ptr) - ptr);
 161 }
 162
 163
 164 /***********************************************************************
 165  *           AnsiPrev   (USER.473)
 166  */
 167 SEGPTR WINAPI AnsiPrev16( LPCSTR start, SEGPTR current )
 168 {
 169     char *ptr = MapSL(current);
 170     return current - (ptr - CharPrevA( start, ptr ));
 171 }
 172
 173
 174 /***********************************************************************
 175  *           CharNextA   (USER32.@)
 176  */
 177 LPSTR WINAPI CharNextA( LPCSTR ptr )
 178 {
 179     if (!*ptr) return (LPSTR)ptr;
 180     if (IsDBCSLeadByte( ptr[0] ) && ptr[1]) return (LPSTR)(ptr + 2);
 181     return (LPSTR)(ptr + 1);
 182 }
 183
 184
 185 /***********************************************************************
 186  *           CharNextExA   (USER32.@)
 187  */
 188 LPSTR WINAPI CharNextExA( WORD codepage, LPCSTR ptr, DWORD flags )
 189 {
 190     if (!*ptr) return (LPSTR)ptr;
 191     if (IsDBCSLeadByteEx( codepage, ptr[0] ) && ptr[1]) return (LPSTR)(ptr + 2);
 192     return (LPSTR)(ptr + 1);
 193 }
 194
 195
 196 /***********************************************************************
 197  *           CharNextExW   (USER32.@)
 198  */
 199 LPWSTR WINAPI CharNextExW( WORD codepage, LPCWSTR ptr, DWORD flags )
 200 {
 201     /* doesn't make sense, there are no codepages for Unicode */
 202     return NULL;
 203 }
 204
 205
 206 /***********************************************************************
 207  *           CharNextW   (USER32.@)
 208  */
 209 LPWSTR WINAPI CharNextW(LPCWSTR x)
 210 {
 211     if (*x) x++;
 212
 213     return (LPWSTR)x;
 214 }
 215
 216
 217 /***********************************************************************
 218  *           CharPrevA   (USER32.@)
 219  */
 220 LPSTR WINAPI CharPrevA( LPCSTR start, LPCSTR ptr )
 221 {
 222     while (*start && (start < ptr))
 223     {
 224         LPCSTR next = CharNextA( start );
 225         if (next >= ptr) break;
 226         start = next;
 227     }
 228     return (LPSTR)start;
 229 }
 230
 231
 232 /***********************************************************************
 233  *           CharPrevExA   (USER32.@)
 234  */
 235 LPSTR WINAPI CharPrevExA( WORD codepage, LPCSTR start, LPCSTR ptr, DWORD flags )
 236 {
 237     while (*start && (start < ptr))
 238     {
 239         LPCSTR next = CharNextExA( codepage, start, flags );
 240         if (next > ptr) break;
 241         start = next;
 242     }
 243     return (LPSTR)start;
 244 }
 245
 246
 247 /***********************************************************************
 248  *           CharPrevExW   (USER32.@)
 249  */
 250 LPSTR WINAPI CharPrevExW( WORD codepage, LPCWSTR start, LPCWSTR ptr, DWORD flags )
 251 {
 252     /* doesn't make sense, there are no codepages for Unicode */
 253     return NULL;
 254 }
 255
 256
 257 /***********************************************************************
 258  *           CharPrevW   (USER32.@)
 259  */
 260 LPWSTR WINAPI CharPrevW(LPCWSTR start,LPCWSTR x)
 261 {
 262     if (x>start) return (LPWSTR)(x-1);
 263     else return (LPWSTR)x;
 264 }
 265
 266
 267 /***********************************************************************
 268  *           CharToOemA   (USER32.@)
 269  */
 270 BOOL WINAPI CharToOemA( LPCSTR s, LPSTR d )
 271 {
 272     if ( !s || !d ) return TRUE;
 273     return CharToOemBuffA( s, d, strlen( s ) + 1 );
 274 }
 275
 276
 277 /***********************************************************************
 278  *           CharToOemBuffA   (USER32.@)
 279  */
 280 BOOL WINAPI CharToOemBuffA( LPCSTR s, LPSTR d, DWORD len )
 281 {
 282     WCHAR *bufW;
 283
 284     bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 285     if( bufW )
 286     {
 287         MultiByteToWideChar( CP_ACP, 0, s, len, bufW, len );
 288         WideCharToMultiByte( CP_OEMCP, 0, bufW, len, d, len, NULL, NULL );
 289         HeapFree( GetProcessHeap(), 0, bufW );
 290     }
 291     return TRUE;
 292 }
 293
 294
 295 /***********************************************************************
 296  *           CharToOemBuffW   (USER32.@)
 297  */
 298 BOOL WINAPI CharToOemBuffW( LPCWSTR s, LPSTR d, DWORD len )
 299 {
 300    if ( !s || !d ) return TRUE;
 301     WideCharToMultiByte( CP_OEMCP, 0, s, len, d, len, NULL, NULL );
 302     return TRUE;
 303 }
 304
 305
 306 /***********************************************************************
 307  *           CharToOemW   (USER32.@)
 308  */
 309 BOOL WINAPI CharToOemW( LPCWSTR s, LPSTR d )
 310 {
 311     return CharToOemBuffW( s, d, strlenW( s ) + 1 );
 312 }
 313
 314
 315 /***********************************************************************
 316  *           OemToCharA   (USER32.@)
 317  */
 318 BOOL WINAPI OemToCharA( LPCSTR s, LPSTR d )
 319 {
 320     return OemToCharBuffA( s, d, strlen( s ) + 1 );
 321 }
 322
 323
 324 /***********************************************************************
 325  *           OemToCharBuffA   (USER32.@)
 326  */
 327 BOOL WINAPI OemToCharBuffA( LPCSTR s, LPSTR d, DWORD len )
 328 {
 329     WCHAR *bufW;
 330
 331     bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 332     if( bufW )
 333     {
 334         MultiByteToWideChar( CP_OEMCP, 0, s, len, bufW, len );
 335         WideCharToMultiByte( CP_ACP, 0, bufW, len, d, len, NULL, NULL );
 336         HeapFree( GetProcessHeap(), 0, bufW );
 337     }
 338     return TRUE;
 339 }
 340
 341
 342 /***********************************************************************
 343  *           OemToCharBuffW   (USER32.@)
 344  */
 345 BOOL WINAPI OemToCharBuffW( LPCSTR s, LPWSTR d, DWORD len )
 346 {
 347     MultiByteToWideChar( CP_OEMCP, 0, s, len, d, len );
 348     return TRUE;
 349 }
 350
 351
 352 /***********************************************************************
 353  *           OemToCharW   (USER32.@)
 354  */
 355 BOOL WINAPI OemToCharW( LPCSTR s, LPWSTR d )
 356 {
 357     return OemToCharBuffW( s, d, strlen( s ) + 1 );
 358 }
 359
 360
 361 /***********************************************************************
 362  *           CharLowerA   (USER32.@)
 363  * FIXME: handle current locale
 364  */
 365 LPSTR WINAPI CharLowerA(LPSTR x)
 366 {
 367     if (!HIWORD(x)) return (LPSTR)tolower((char)(int)x);
 368
 369     __TRY
 370     {
 371         LPSTR s = x;
 372         while (*s)
 373         {
 374             *s=tolower(*s);
 375             s++;
 376         }
 377     }
 378     __EXCEPT(page_fault)
 379     {
 380         SetLastError( ERROR_INVALID_PARAMETER );
 381         return NULL;
 382     }
 383     __ENDTRY
 384     return x;
 385 }
 386
 387
 388 /***********************************************************************
 389  *           CharUpperA   (USER32.@)
 390  * FIXME: handle current locale
 391  */
 392 LPSTR WINAPI CharUpperA(LPSTR x)
 393 {
 394     if (!HIWORD(x)) return (LPSTR)toupper((char)(int)x);
 395
 396     __TRY
 397     {
 398         LPSTR s = x;
 399         while (*s)
 400         {
 401             *s=toupper(*s);
 402             s++;
 403         }
 404     }
 405     __EXCEPT(page_fault)
 406     {
 407         SetLastError( ERROR_INVALID_PARAMETER );
 408         return NULL;
 409     }
 410     __ENDTRY
 411     return x;
 412 }
 413
 414
 415 /***********************************************************************
 416  *           CharLowerW   (USER32.@)
 417  */
 418 LPWSTR WINAPI CharLowerW(LPWSTR x)
 419 {
 420     if (HIWORD(x)) return strlwrW(x);
 421     else return (LPWSTR)((UINT)tolowerW(LOWORD(x)));
 422 }
 423
 424
 425 /***********************************************************************
 426  *           CharUpperW   (USER32.@)
 427  */
 428 LPWSTR WINAPI CharUpperW(LPWSTR x)
 429 {
 430     if (HIWORD(x)) return struprW(x);
 431     else return (LPWSTR)((UINT)toupperW(LOWORD(x)));
 432 }
 433
 434
 435 /***********************************************************************
 436  *           CharLowerBuffA   (USER32.@)
 437  */
 438 DWORD WINAPI CharLowerBuffA( LPSTR str, DWORD len )
 439 {
 440     DWORD lenW;
 441     WCHAR *strW;
 442     if (!str) return 0; /* YES */
 443
 444     lenW = MultiByteToWideChar(CP_ACP, 0, str, len, NULL, 0);
 445     strW = HeapAlloc(GetProcessHeap(), 0, lenW * sizeof(WCHAR));
 446     if(strW)
 447     {
 448         MultiByteToWideChar(CP_ACP, 0, str, len, strW, lenW);
 449         CharLowerBuffW(strW, lenW);
 450         len = WideCharToMultiByte(CP_ACP, 0, strW, lenW, str, len, NULL, NULL);
 451         HeapFree(GetProcessHeap(), 0, strW);
 452         return len;
 453     }
 454     return 0;
 455 }
 456
 457
 458 /***********************************************************************
 459  *           CharLowerBuffW   (USER32.@)
 460  */
 461 DWORD WINAPI CharLowerBuffW( LPWSTR str, DWORD len )
 462 {
 463     DWORD ret = len;
 464     if (!str) return 0; /* YES */
 465     for (; len; len--, str++) *str = tolowerW(*str);
 466     return ret;
 467 }
 468
 469
 470 /***********************************************************************
 471  *           CharUpperBuffA   (USER32.@)
 472  */
 473 DWORD WINAPI CharUpperBuffA( LPSTR str, DWORD len )
 474 {
 475     DWORD lenW;
 476     WCHAR *strW;
 477     if (!str) return 0; /* YES */
 478
 479     lenW = MultiByteToWideChar(CP_ACP, 0, str, len, NULL, 0);
 480     strW = HeapAlloc(GetProcessHeap(), 0, lenW * sizeof(WCHAR));
 481     if(strW)
 482     {
 483         MultiByteToWideChar(CP_ACP, 0, str, len, strW, lenW);
 484         CharUpperBuffW(strW, lenW);
 485         len = WideCharToMultiByte(CP_ACP, 0, strW, lenW, str, len, NULL, NULL);
 486         HeapFree(GetProcessHeap(), 0, strW);
 487         return len;
 488     }
 489     return 0;
 490 }
 491
 492
 493 /***********************************************************************
 494  *           CharUpperBuffW   (USER32.@)
 495  */
 496 DWORD WINAPI CharUpperBuffW( LPWSTR str, DWORD len )
 497 {
 498     DWORD ret = len;
 499     if (!str) return 0; /* YES */
 500     for (; len; len--, str++) *str = toupperW(*str);
 501     return ret;
 502 }
 503
 504
 505 /***********************************************************************
 506  *           IsCharLower    (USER.436)
 507  *           IsCharLowerA   (USER32.@)
 508  */
 509 BOOL WINAPI IsCharLowerA(CHAR x)
 510 {
 511     WCHAR wch;
 512     MultiByteToWideChar(CP_ACP, 0, &x, 1, &wch, 1);
 513     return IsCharLowerW(wch);
 514 }
 515
 516
 517 /***********************************************************************
 518  *           IsCharLowerW   (USER32.@)
 519  */
 520 BOOL WINAPI IsCharLowerW(WCHAR x)
 521 {
 522     return (get_char_typeW(x) & C1_LOWER) != 0;
 523 }
 524
 525
 526 /***********************************************************************
 527  *           IsCharUpper    (USER.435)
 528  *           IsCharUpperA   (USER32.@)
 529  */
 530 BOOL WINAPI IsCharUpperA(CHAR x)
 531 {
 532     WCHAR wch;
 533     MultiByteToWideChar(CP_ACP, 0, &x, 1, &wch, 1);
 534     return IsCharUpperW(wch);
 535 }
 536
 537
 538 /***********************************************************************
 539  *           IsCharUpperW   (USER32.@)
 540  */
 541 BOOL WINAPI IsCharUpperW(WCHAR x)
 542 {
 543     return (get_char_typeW(x) & C1_UPPER) != 0;
 544 }
 545
 546
 547 /***********************************************************************
 548  *           IsCharAlphaNumeric    (USER.434)
 549  *           IsCharAlphaNumericA   (USER32.@)
 550  */
 551 BOOL WINAPI IsCharAlphaNumericA(CHAR x)
 552 {
 553     WCHAR wch;
 554     MultiByteToWideChar(CP_ACP, 0, &x, 1, &wch, 1);
 555     return IsCharAlphaNumericW(wch);
 556 }
 557
 558
 559 /***********************************************************************
 560  *           IsCharAlphaNumericW   (USER32.@)
 561  */
 562 BOOL WINAPI IsCharAlphaNumericW(WCHAR x)
 563 {
 564     return (get_char_typeW(x) & (C1_ALPHA|C1_DIGIT)) != 0;
 565 }
 566
 567
 568 /***********************************************************************
 569  *           IsCharAlpha    (USER.433)
 570  *           IsCharAlphaA   (USER32.@)
 571  */
 572 BOOL WINAPI IsCharAlphaA(CHAR x)
 573 {
 574     WCHAR wch;
 575     MultiByteToWideChar(CP_ACP, 0, &x, 1, &wch, 1);
 576     return IsCharAlphaW(wch);
 577 }
 578
 579
 580 /***********************************************************************
 581  *           IsCharAlphaW   (USER32.@)
 582  */
 583 BOOL WINAPI IsCharAlphaW(WCHAR x)
 584 {
 585     return (get_char_typeW(x) & C1_ALPHA) != 0;
 586 }
 587
 588
 589 /***********************************************************************
 590  *           FormatMessage   (USER.606)
 591  */
 592 DWORD WINAPI FormatMessage16(
 593     DWORD   dwFlags,
 594     SEGPTR lpSource,     /* [in] NOTE: not always a valid pointer */
 595     WORD   dwMessageId,
 596     WORD   dwLanguageId,
 597     LPSTR  lpBuffer,     /* [out] NOTE: *((HLOCAL16*)) for FORMAT_MESSAGE_ALLOCATE_BUFFER*/
 598     WORD   nSize,
 599     LPDWORD args         /* [in] NOTE: va_list *args */
 600 ) {
 601 #ifdef __i386__
 602 /* This implementation is completely dependent on the format of the va_list on x86 CPUs */
 603     LPSTR       target,t;
 604     DWORD       talloced;
 605     LPSTR       from,f;
 606     DWORD       width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
 607     BOOL        eos = FALSE;
 608     LPSTR       allocstring = NULL;
 609
 610     TRACE("(0x%lx,%lx,%d,0x%x,%p,%d,%p)\n",
 611           dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
 612         if ((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 613                 && (dwFlags & FORMAT_MESSAGE_FROM_HMODULE)) return 0;
 614         if ((dwFlags & FORMAT_MESSAGE_FROM_STRING)
 615                 &&((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 616                         || (dwFlags & FORMAT_MESSAGE_FROM_HMODULE))) return 0;
 617
 618     if (width && width != FORMAT_MESSAGE_MAX_WIDTH_MASK)
 619         FIXME("line wrapping (%lu) not supported.\n", width);
 620     from = NULL;
 621     if (dwFlags & FORMAT_MESSAGE_FROM_STRING)
 622     {
 623         char *source = MapSL(lpSource);
 624         from = HeapAlloc( GetProcessHeap(), 0, strlen(source)+1 );
 625         strcpy( from, source );
 626     }
 627     if (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM) {
 628         from = HeapAlloc( GetProcessHeap(),0,200 );
 629         sprintf(from,"Systemmessage, messageid = 0x%08x\n",dwMessageId);
 630     }
 631     if (dwFlags & FORMAT_MESSAGE_FROM_HMODULE) {
 632         INT16   bufsize;
 633         HINSTANCE16 hinst16 = ((HINSTANCE16)lpSource & 0xffff);
 634
 635         dwMessageId &= 0xFFFF;
 636         bufsize=LoadString16(hinst16,dwMessageId,NULL,0);
 637         if (bufsize) {
 638             from = HeapAlloc( GetProcessHeap(), 0, bufsize +1);
 639             LoadString16(hinst16,dwMessageId,from,bufsize+1);
 640         }
 641     }
 642     target      = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100);
 643     t   = target;
 644     talloced= 100;
 645
 646 #define ADD_TO_T(c) \
 647         *t++=c;\
 648         if (t-target == talloced) {\
 649                 target  = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2);\
 650                 t       = target+talloced;\
 651                 talloced*=2;\
 652         }
 653
 654     if (from) {
 655         f=from;
 656         while (*f && !eos) {
 657             if (*f=='%') {
 658                 int     insertnr;
 659                 char    *fmtstr,*x,*lastf;
 660                 DWORD   *argliststart;
 661
 662                 fmtstr = NULL;
 663                 lastf = f;
 664                 f++;
 665                 if (!*f) {
 666                     ADD_TO_T('%');
 667                     continue;
 668                 }
 669                 switch (*f) {
 670                 case '1':case '2':case '3':case '4':case '5':
 671                 case '6':case '7':case '8':case '9':
 672                     insertnr=*f-'0';
 673                     switch (f[1]) {
 674                     case '0':case '1':case '2':case '3':
 675                     case '4':case '5':case '6':case '7':
 676                     case '8':case '9':
 677                         f++;
 678                         insertnr=insertnr*10+*f-'0';
 679                         f++;
 680                         break;
 681                     default:
 682                         f++;
 683                         break;
 684                     }
 685                     if (*f=='!') {
 686                         f++;
 687                         if (NULL!=(x=strchr(f,'!'))) {
 688                             *x='\0';
 689                             fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f)+2);
 690                             sprintf(fmtstr,"%%%s",f);
 691                             f=x+1;
 692                         } else {
 693                             fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f)+2);
 694                             sprintf(fmtstr,"%%%s",f);
 695                             f+=strlen(f); /*at \0*/
 696                         }
 697                     }
 698                     else
 699                     {
 700                         if(!args) break;
 701                         fmtstr=HeapAlloc( GetProcessHeap(), 0, 3 );
 702                         strcpy( fmtstr, "%s" );
 703                     }
 704                     if (args) {
 705                         int     ret;
 706                         int     sz;
 707                         LPSTR   b = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sz = 100);
 708
 709                         argliststart=args+insertnr-1;
 710
 711                         /* CMF - This makes a BIG assumption about va_list */
 712                         while ((ret = vsnprintf(b, sz, fmtstr, (va_list) argliststart) < 0) || (ret >= sz)) {
 713                             sz = (ret == -1 ? sz + 100 : ret + 1);
 714                             b = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, b, sz);
 715                         }
 716                         for (x=b; *x; x++) ADD_TO_T(*x);
 717                         HeapFree(GetProcessHeap(), 0, b);
 718                     } else {
 719                         /* NULL args - copy formatstr
 720                          * (probably wrong)
 721                          */
 722                         while ((lastf<f)&&(*lastf)) {
 723                             ADD_TO_T(*lastf++);
 724                         }
 725                     }
 726                     HeapFree(GetProcessHeap(),0,fmtstr);
 727                     break;
 728                 case '0': /* Just stop processing format string */
 729                     eos = TRUE;
 730                     f++;
 731                     break;
 732                 case 'n': /* 16 bit version just outputs 'n' */
 733                 default:
 734                     ADD_TO_T(*f++);
 735                     break;
 736                 }
 737             } else { /* '\n' or '\r' gets mapped to "\r\n" */
 738                 if(*f == '\n' || *f == '\r') {
 739                     if (width == 0) {
 740                         ADD_TO_T('\r');
 741                         ADD_TO_T('\n');
 742                         if(*f++ == '\r' && *f == '\n')
 743                             f++;
 744                     }
 745                 } else {
 746                     ADD_TO_T(*f++);
 747                 }
 748             }
 749         }
 750         *t='\0';
 751     }
 752     talloced = strlen(target)+1;
 753     if (nSize && talloced<nSize) {
 754         target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize);
 755     }
 756     TRACE("-- %s\n",debugstr_a(target));
 757     if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
 758         /* nSize is the MINIMUM size */
 759         HLOCAL16 h = LocalAlloc16(LPTR,talloced);
 760         SEGPTR ptr = LocalLock16(h);
 761         allocstring = MapSL( ptr );
 762         memcpy( allocstring,target,talloced);
 763         LocalUnlock16( h );
 764         *((HLOCAL16*)lpBuffer) = h;
 765     } else
 766         lstrcpynA(lpBuffer,target,nSize);
 767     HeapFree(GetProcessHeap(),0,target);
 768     if (from) HeapFree(GetProcessHeap(),0,from);
 769     return (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
 770         strlen(allocstring):
 771         strlen(lpBuffer);
 772 #else
 773         return 0;
 774 #endif /* __i386__ */
 775 }
 776 #undef ADD_TO_T