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
   9 #include <ctype.h>
  10 #include <stdarg.h>
  11 #include <stdlib.h>
  12 #include <stdio.h>
  13
  14 #include "windef.h"
  15 #include "winbase.h"
  16 #include "winnls.h"
  17 #include "wine/winbase16.h"
  18 #include "wine/winuser16.h"
  19 #include "wine/unicode.h"
  20
  21 #include "heap.h"
  22 #include "ldt.h"
  23 #include "debugtools.h"
  24
  25 DEFAULT_DEBUG_CHANNEL(resource);
  26
  27 /***********************************************************************
  28  *           AnsiToOem16   (KEYBOARD.5)
  29  */
  30 INT16 WINAPI AnsiToOem16( LPCSTR s, LPSTR d )
  31 {
  32     CharToOemA( s, d );
  33     return -1;
  34 }
  35
  36
  37 /***********************************************************************
  38  *           OemToAnsi16   (KEYBOARD.6)
  39  */
  40 INT16 WINAPI OemToAnsi16( LPCSTR s, LPSTR d )
  41 {
  42     OemToCharA( s, d );
  43     return -1;
  44 }
  45
  46
  47 /***********************************************************************
  48  *           AnsiToOemBuff16   (KEYBOARD.134)
  49  */
  50 void WINAPI AnsiToOemBuff16( LPCSTR s, LPSTR d, UINT16 len )
  51 {
  52     if (len != 0) CharToOemBuffA( s, d, len );
  53 }
  54
  55
  56 /***********************************************************************
  57  *           OemToAnsiBuff16   (KEYBOARD.135)
  58  */
  59 void WINAPI OemToAnsiBuff16( LPCSTR s, LPSTR d, UINT16 len )
  60 {
  61     if (len != 0) OemToCharBuffA( s, d, len );
  62 }
  63
  64
  65 /***********************************************************************
  66  *           AnsiUpper16   (USER.431)
  67  */
  68 SEGPTR WINAPI AnsiUpper16( SEGPTR strOrChar )
  69 {
  70     /* uppercase only one char if strOrChar < 0x10000 */
  71     if (HIWORD(strOrChar))
  72     {
  73         CharUpperA( PTR_SEG_TO_LIN(strOrChar) );
  74         return strOrChar;
  75     }
  76     else return toupper((char)strOrChar);
  77 }
  78
  79
  80 /***********************************************************************
  81  *           AnsiLower16   (USER.432)
  82  */
  83 SEGPTR WINAPI AnsiLower16( SEGPTR strOrChar )
  84 {
  85     /* lowercase only one char if strOrChar < 0x10000 */
  86     if (HIWORD(strOrChar))
  87     {
  88         CharLowerA( PTR_SEG_TO_LIN(strOrChar) );
  89         return strOrChar;
  90     }
  91     else return tolower((char)strOrChar);
  92 }
  93
  94
  95 /***********************************************************************
  96  *           AnsiUpperBuff16   (USER.437)
  97  */
  98 UINT16 WINAPI AnsiUpperBuff16( LPSTR str, UINT16 len )
  99 {
 100     CharUpperBuffA( str, len ? len : 65536 );
 101     return len;
 102 }
 103
 104
 105 /***********************************************************************
 106  *           AnsiLowerBuff16   (USER.438)
 107  */
 108 UINT16 WINAPI AnsiLowerBuff16( LPSTR str, UINT16 len )
 109 {
 110     CharLowerBuffA( str, len ? len : 65536 );
 111     return len;
 112 }
 113
 114
 115 /***********************************************************************
 116  *           AnsiNext16   (USER.472)
 117  */
 118 SEGPTR WINAPI AnsiNext16(SEGPTR current)
 119 {
 120     char *ptr = (char *)PTR_SEG_TO_LIN(current);
 121     return current + (CharNextA(ptr) - ptr);
 122 }
 123
 124
 125 /***********************************************************************
 126  *           AnsiPrev16   (USER.473)
 127  */
 128 SEGPTR WINAPI AnsiPrev16( LPCSTR start, SEGPTR current )
 129 {
 130     char *ptr = (char *)PTR_SEG_TO_LIN(current);
 131     return current - (ptr - CharPrevA( start, ptr ));
 132 }
 133
 134
 135 /***********************************************************************
 136  *           CharNextA   (USER32.@)
 137  */
 138 LPSTR WINAPI CharNextA( LPCSTR ptr )
 139 {
 140     if (!*ptr) return (LPSTR)ptr;
 141     if (IsDBCSLeadByte( ptr[0] ) && ptr[1]) return (LPSTR)(ptr + 2);
 142     return (LPSTR)(ptr + 1);
 143 }
 144
 145
 146 /***********************************************************************
 147  *           CharNextExA   (USER32.@)
 148  */
 149 LPSTR WINAPI CharNextExA( WORD codepage, LPCSTR ptr, DWORD flags )
 150 {
 151     if (!*ptr) return (LPSTR)ptr;
 152     if (IsDBCSLeadByteEx( codepage, ptr[0] ) && ptr[1]) return (LPSTR)(ptr + 2);
 153     return (LPSTR)(ptr + 1);
 154 }
 155
 156
 157 /***********************************************************************
 158  *           CharNextExW   (USER32.@)
 159  */
 160 LPWSTR WINAPI CharNextExW( WORD codepage, LPCWSTR ptr, DWORD flags )
 161 {
 162     /* doesn't make sense, there are no codepages for Unicode */
 163     return NULL;
 164 }
 165
 166
 167 /***********************************************************************
 168  *           CharNextW   (USER32.@)
 169  */
 170 LPWSTR WINAPI CharNextW(LPCWSTR x)
 171 {
 172     if (*x) x++;
 173
 174     return (LPWSTR)x;
 175 }
 176
 177
 178 /***********************************************************************
 179  *           CharPrevA   (USER32.@)
 180  */
 181 LPSTR WINAPI CharPrevA( LPCSTR start, LPCSTR ptr )
 182 {
 183     while (*start && (start < ptr))
 184     {
 185         LPCSTR next = CharNextA( start );
 186         if (next >= ptr) break;
 187         start = next;
 188     }
 189     return (LPSTR)start;
 190 }
 191
 192
 193 /***********************************************************************
 194  *           CharPrevExA   (USER32.@)
 195  */
 196 LPSTR WINAPI CharPrevExA( WORD codepage, LPCSTR start, LPCSTR ptr, DWORD flags )
 197 {
 198     while (*start && (start < ptr))
 199     {
 200         LPCSTR next = CharNextExA( codepage, start, flags );
 201         if (next > ptr) break;
 202         start = next;
 203     }
 204     return (LPSTR)start;
 205 }
 206
 207
 208 /***********************************************************************
 209  *           CharPrevExW   (USER32.@)
 210  */
 211 LPSTR WINAPI CharPrevExW( WORD codepage, LPCWSTR start, LPCWSTR ptr, DWORD flags )
 212 {
 213     /* doesn't make sense, there are no codepages for Unicode */
 214     return NULL;
 215 }
 216
 217
 218 /***********************************************************************
 219  *           CharPrevW   (USER32.@)
 220  */
 221 LPWSTR WINAPI CharPrevW(LPCWSTR start,LPCWSTR x)
 222 {
 223     if (x>start) return (LPWSTR)(x-1);
 224     else return (LPWSTR)x;
 225 }
 226
 227
 228 /***********************************************************************
 229  *           CharToOemA   (USER32.@)
 230  */
 231 BOOL WINAPI CharToOemA( LPCSTR s, LPSTR d )
 232 {
 233     if ( !s || !d ) return TRUE;
 234     return CharToOemBuffA( s, d, strlen( s ) + 1 );
 235 }
 236
 237
 238 /***********************************************************************
 239  *           CharToOemBuffA   (USER32.@)
 240  */
 241 BOOL WINAPI CharToOemBuffA( LPCSTR s, LPSTR d, DWORD len )
 242 {
 243     WCHAR *bufW;
 244
 245     bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 246     if( bufW )
 247     {
 248         MultiByteToWideChar( CP_ACP, 0, s, len, bufW, len );
 249         WideCharToMultiByte( CP_OEMCP, 0, bufW, len, d, len, NULL, NULL );
 250         HeapFree( GetProcessHeap(), 0, bufW );
 251     }
 252     return TRUE;
 253 }
 254
 255
 256 /***********************************************************************
 257  *           CharToOemBuffW   (USER32.@)
 258  */
 259 BOOL WINAPI CharToOemBuffW( LPCWSTR s, LPSTR d, DWORD len )
 260 {
 261    if ( !s || !d ) return TRUE;
 262     WideCharToMultiByte( CP_OEMCP, 0, s, len, d, len, NULL, NULL );
 263     return TRUE;
 264 }
 265
 266
 267 /***********************************************************************
 268  *           CharToOemW   (USER32.@)
 269  */
 270 BOOL WINAPI CharToOemW( LPCWSTR s, LPSTR d )
 271 {
 272     return CharToOemBuffW( s, d, strlenW( s ) + 1 );
 273 }
 274
 275
 276 /***********************************************************************
 277  *           OemToCharA   (USER32.@)
 278  */
 279 BOOL WINAPI OemToCharA( LPCSTR s, LPSTR d )
 280 {
 281     return OemToCharBuffA( s, d, strlen( s ) + 1 );
 282 }
 283
 284
 285 /***********************************************************************
 286  *           OemToCharBuffA   (USER32.@)
 287  */
 288 BOOL WINAPI OemToCharBuffA( LPCSTR s, LPSTR d, DWORD len )
 289 {
 290     WCHAR *bufW;
 291
 292     bufW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
 293     if( bufW )
 294     {
 295         MultiByteToWideChar( CP_OEMCP, 0, s, len, bufW, len );
 296         WideCharToMultiByte( CP_ACP, 0, bufW, len, d, len, NULL, NULL );
 297         HeapFree( GetProcessHeap(), 0, bufW );
 298     }
 299     return TRUE;
 300 }
 301
 302
 303 /***********************************************************************
 304  *           OemToCharBuffW   (USER32.@)
 305  */
 306 BOOL WINAPI OemToCharBuffW( LPCSTR s, LPWSTR d, DWORD len )
 307 {
 308     MultiByteToWideChar( CP_OEMCP, 0, s, len, d, len );
 309     return TRUE;
 310 }
 311
 312
 313 /***********************************************************************
 314  *           OemToCharW   (USER32.@)
 315  */
 316 BOOL WINAPI OemToCharW( LPCSTR s, LPWSTR d )
 317 {
 318     return OemToCharBuffW( s, d, strlen( s ) + 1 );
 319 }
 320
 321
 322 /***********************************************************************
 323  *           FormatMessage16   (USER.606)
 324  */
 325 DWORD WINAPI FormatMessage16(
 326     DWORD   dwFlags,
 327     SEGPTR lpSource, /*not always a valid pointer*/
 328     WORD   dwMessageId,
 329     WORD   dwLanguageId,
 330     LPSTR  lpBuffer, /* *((HLOCAL16*)) for FORMAT_MESSAGE_ALLOCATE_BUFFER*/
 331     WORD   nSize,
 332     LPDWORD args /* va_list *args */
 333 ) {
 334 #ifdef __i386__
 335 /* This implementation is completely dependant on the format of the va_list on x86 CPUs */
 336     LPSTR       target,t;
 337     DWORD       talloced;
 338     LPSTR       from,f;
 339     DWORD       width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
 340     BOOL        eos = FALSE;
 341     LPSTR       allocstring = NULL;
 342
 343     TRACE("(0x%lx,%lx,%d,0x%x,%p,%d,%p)\n",
 344           dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
 345         if ((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 346                 && (dwFlags & FORMAT_MESSAGE_FROM_HMODULE)) return 0;
 347         if ((dwFlags & FORMAT_MESSAGE_FROM_STRING)
 348                 &&((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 349                         || (dwFlags & FORMAT_MESSAGE_FROM_HMODULE))) return 0;
 350
 351     if (width && width != FORMAT_MESSAGE_MAX_WIDTH_MASK)
 352         FIXME("line wrapping (%lu) not supported.\n", width);
 353     from = NULL;
 354     if (dwFlags & FORMAT_MESSAGE_FROM_STRING)
 355         from = HEAP_strdupA( GetProcessHeap(), 0, PTR_SEG_TO_LIN(lpSource));
 356     if (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM) {
 357         from = HeapAlloc( GetProcessHeap(),0,200 );
 358         sprintf(from,"Systemmessage, messageid = 0x%08x\n",dwMessageId);
 359     }
 360     if (dwFlags & FORMAT_MESSAGE_FROM_HMODULE) {
 361         INT16   bufsize;
 362         HINSTANCE16 hinst16 = ((HMODULE)lpSource & 0xffff);
 363
 364         dwMessageId &= 0xFFFF;
 365         bufsize=LoadString16(hinst16,dwMessageId,NULL,0);
 366         if (bufsize) {
 367             from = HeapAlloc( GetProcessHeap(), 0, bufsize +1);
 368             LoadString16(hinst16,dwMessageId,from,bufsize+1);
 369         }
 370     }
 371     target      = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100);
 372     t   = target;
 373     talloced= 100;
 374
 375 #define ADD_TO_T(c) \
 376         *t++=c;\
 377         if (t-target == talloced) {\
 378                 target  = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2);\
 379                 t       = target+talloced;\
 380                 talloced*=2;\
 381         }
 382
 383     if (from) {
 384         f=from;
 385         while (*f && !eos) {
 386             if (*f=='%') {
 387                 int     insertnr;
 388                 char    *fmtstr,*x,*lastf;
 389                 DWORD   *argliststart;
 390
 391                 fmtstr = NULL;
 392                 lastf = f;
 393                 f++;
 394                 if (!*f) {
 395                     ADD_TO_T('%');
 396                     continue;
 397                 }
 398                 switch (*f) {
 399                 case '1':case '2':case '3':case '4':case '5':
 400                 case '6':case '7':case '8':case '9':
 401                     insertnr=*f-'0';
 402                     switch (f[1]) {
 403                     case '0':case '1':case '2':case '3':
 404                     case '4':case '5':case '6':case '7':
 405                     case '8':case '9':
 406                         f++;
 407                         insertnr=insertnr*10+*f-'0';
 408                         f++;
 409                         break;
 410                     default:
 411                         f++;
 412                         break;
 413                     }
 414                     if (*f=='!') {
 415                         f++;
 416                         if (NULL!=(x=strchr(f,'!'))) {
 417                             *x='\0';
 418                             fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f)+2);
 419                             sprintf(fmtstr,"%%%s",f);
 420                             f=x+1;
 421                         } else {
 422                             fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f)+2);
 423                             sprintf(fmtstr,"%%%s",f);
 424                             f+=strlen(f); /*at \0*/
 425                         }
 426                     } else
 427                         if(!args)
 428                             break;
 429                         else
 430                           fmtstr=HEAP_strdupA(GetProcessHeap(),0,"%s");
 431                     if (args) {
 432                         int     sz;
 433                         LPSTR   b = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sz = 100);
 434
 435                         argliststart=args+insertnr-1;
 436
 437                         /* CMF - This makes a BIG assumption about va_list */
 438                         while (vsnprintf(b, sz, fmtstr, (va_list) argliststart) < 0) {
 439                             b = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, b, sz += 100);
 440                         }
 441                         for (x=b; *x; x++) ADD_TO_T(*x);
 442                     } else {
 443                         /* NULL args - copy formatstr
 444                          * (probably wrong)
 445                          */
 446                         while ((lastf<f)&&(*lastf)) {
 447                             ADD_TO_T(*lastf++);
 448                         }
 449                     }
 450                     HeapFree(GetProcessHeap(),0,fmtstr);
 451                     break;
 452                 case '0': /* Just stop processing format string */
 453                     eos = TRUE;
 454                     f++;
 455                     break;
 456                 case 'n': /* 16 bit version just outputs 'n' */
 457                 default:
 458                     ADD_TO_T(*f++);
 459                     break;
 460                 }
 461             } else { /* '\n' or '\r' gets mapped to "\r\n" */
 462                 if(*f == '\n' || *f == '\r') {
 463                     if (width == 0) {
 464                         ADD_TO_T('\r');
 465                         ADD_TO_T('\n');
 466                         if(*f++ == '\r' && *f == '\n')
 467                             f++;
 468                     }
 469                 } else {
 470                     ADD_TO_T(*f++);
 471                 }
 472             }
 473         }
 474         *t='\0';
 475     }
 476     talloced = strlen(target)+1;
 477     if (nSize && talloced<nSize) {
 478         target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize);
 479     }
 480     TRACE("-- %s\n",debugstr_a(target));
 481     if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
 482         /* nSize is the MINIMUM size */
 483         HLOCAL16 h = LocalAlloc16(LPTR,talloced);
 484         SEGPTR ptr = LocalLock16(h);
 485         allocstring = PTR_SEG_TO_LIN( ptr );
 486         memcpy( allocstring,target,talloced);
 487         LocalUnlock16( h );
 488         *((HLOCAL16*)lpBuffer) = h;
 489     } else
 490         lstrcpynA(lpBuffer,target,nSize);
 491     HeapFree(GetProcessHeap(),0,target);
 492     if (from) HeapFree(GetProcessHeap(),0,from);
 493     return (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
 494         strlen(allocstring):
 495         strlen(lpBuffer);
 496 #else
 497         return 0;
 498 #endif /* __i386__ */
 499 }
 500 #undef ADD_TO_T