source: trunk/src/NTDLL/wcstring.c@ 8706

Last change on this file since 8706 was 8429, checked in by sandervl, 23 years ago

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1/*
2 * NTDLL wide-char functions
3 *
4 * Copyright 2000 Alexandre Julliard
5 * Copyright 2000 Jon Griffiths
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include "config.h"
23
24#include <ctype.h>
25#include <limits.h>
26#include <stdlib.h>
27#include <string.h>
28#include <stdio.h>
29
30#include "ntddk.h"
31#include "wine/unicode.h"
32#include "wine/debug.h"
33
34WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
35
36
37/*********************************************************************
38 * _wcsicmp (NTDLL.@)
39 */
40INT __cdecl NTDLL__wcsicmp( LPCWSTR str1, LPCWSTR str2 )
41{
42 return strcmpiW( str1, str2 );
43}
44
45
46/*********************************************************************
47 * _wcslwr (NTDLL.@)
48 */
49LPWSTR __cdecl NTDLL__wcslwr( LPWSTR str )
50{
51 return strlwrW( str );
52}
53
54
55/*********************************************************************
56 * _wcsnicmp (NTDLL.@)
57 */
58INT __cdecl NTDLL__wcsnicmp( LPCWSTR str1, LPCWSTR str2, INT n )
59{
60 return strncmpiW( str1, str2, n );
61}
62
63
64/*********************************************************************
65 * _wcsupr (NTDLL.@)
66 */
67LPWSTR __cdecl NTDLL__wcsupr( LPWSTR str )
68{
69 return struprW( str );
70}
71
72
73/*********************************************************************
74 * towlower (NTDLL.@)
75 */
76WCHAR __cdecl NTDLL_towlower( WCHAR ch )
77{
78 return tolowerW(ch);
79}
80
81
82/*********************************************************************
83 * towupper (NTDLL.@)
84 */
85WCHAR __cdecl NTDLL_towupper( WCHAR ch )
86{
87 return toupperW(ch);
88}
89
90
91/***********************************************************************
92 * wcscat (NTDLL.@)
93 */
94LPWSTR __cdecl NTDLL_wcscat( LPWSTR dst, LPCWSTR src )
95{
96 return strcatW( dst, src );
97}
98
99
100/*********************************************************************
101 * wcschr (NTDLL.@)
102 */
103LPWSTR __cdecl NTDLL_wcschr( LPCWSTR str, WCHAR ch )
104{
105 return strchrW( str, ch );
106}
107
108
109/*********************************************************************
110 * wcscmp (NTDLL.@)
111 */
112INT __cdecl NTDLL_wcscmp( LPCWSTR str1, LPCWSTR str2 )
113{
114 return strcmpW( str1, str2 );
115}
116
117
118/***********************************************************************
119 * wcscpy (NTDLL.@)
120 */
121LPWSTR __cdecl NTDLL_wcscpy( LPWSTR dst, LPCWSTR src )
122{
123 return strcpyW( dst, src );
124}
125
126
127/*********************************************************************
128 * wcscspn (NTDLL.@)
129 */
130INT __cdecl NTDLL_wcscspn( LPCWSTR str, LPCWSTR reject )
131{
132 LPCWSTR start = str;
133 while (*str)
134 {
135 LPCWSTR p = reject;
136 while (*p && (*p != *str)) p++;
137 if (*p) break;
138 str++;
139 }
140 return str - start;
141}
142
143
144/***********************************************************************
145 * wcslen (NTDLL.@)
146 */
147INT __cdecl NTDLL_wcslen( LPCWSTR str )
148{
149 return strlenW( str );
150}
151
152
153/*********************************************************************
154 * wcsncat (NTDLL.@)
155 */
156LPWSTR __cdecl NTDLL_wcsncat( LPWSTR s1, LPCWSTR s2, INT n )
157{
158 LPWSTR ret = s1;
159 while (*s1) s1++;
160 while (n-- > 0) if (!(*s1++ = *s2++)) return ret;
161 *s1 = 0;
162 return ret;
163}
164
165
166/*********************************************************************
167 * wcsncmp (NTDLL.@)
168 */
169INT __cdecl NTDLL_wcsncmp( LPCWSTR str1, LPCWSTR str2, INT n )
170{
171 return strncmpW( str1, str2, n );
172}
173
174
175/*********************************************************************
176 * wcsncpy (NTDLL.@)
177 */
178LPWSTR __cdecl NTDLL_wcsncpy( LPWSTR s1, LPCWSTR s2, INT n )
179{
180 return strncpyW( s1, s2, n );
181}
182
183
184/*********************************************************************
185 * wcspbrk (NTDLL.@)
186 */
187LPWSTR __cdecl NTDLL_wcspbrk( LPCWSTR str, LPCWSTR accept )
188{
189 LPCWSTR p;
190 while (*str)
191 {
192 for (p = accept; *p; p++) if (*p == *str) return (LPWSTR)str;
193 str++;
194 }
195 return NULL;
196}
197
198
199/*********************************************************************
200 * wcsrchr (NTDLL.@)
201 */
202LPWSTR __cdecl NTDLL_wcsrchr( LPWSTR str, WCHAR ch )
203{
204 LPWSTR last = NULL;
205 while (*str)
206 {
207 if (*str == ch) last = str;
208 str++;
209 }
210 return last;
211}
212
213
214/*********************************************************************
215 * wcsspn (NTDLL.@)
216 */
217INT __cdecl NTDLL_wcsspn( LPCWSTR str, LPCWSTR accept )
218{
219 LPCWSTR start = str;
220 while (*str)
221 {
222 LPCWSTR p = accept;
223 while (*p && (*p != *str)) p++;
224 if (!*p) break;
225 str++;
226 }
227 return str - start;
228}
229
230
231/*********************************************************************
232 * wcsstr (NTDLL.@)
233 */
234LPWSTR __cdecl NTDLL_wcsstr( LPCWSTR str, LPCWSTR sub )
235{
236 return strstrW( str, sub );
237}
238
239
240/*********************************************************************
241 * wcstok (NTDLL.@)
242 */
243LPWSTR __cdecl NTDLL_wcstok( LPWSTR str, LPCWSTR delim )
244{
245 static LPWSTR next = NULL;
246 LPWSTR ret;
247
248 if (!str)
249 if (!(str = next)) return NULL;
250
251 while (*str && NTDLL_wcschr( delim, *str )) str++;
252 if (!*str) return NULL;
253 ret = str++;
254 while (*str && !NTDLL_wcschr( delim, *str )) str++;
255 if (*str) *str++ = 0;
256 next = str;
257 return ret;
258}
259
260
261/*********************************************************************
262 * wcstombs (NTDLL.@)
263 */
264INT __cdecl NTDLL_wcstombs( LPSTR dst, LPCWSTR src, INT n )
265{
266 DWORD len;
267
268 if (!dst)
269 {
270 RtlUnicodeToMultiByteSize( &len, src, strlenW(src)*sizeof(WCHAR) );
271 return len;
272 }
273 else
274 {
275 if (n <= 0) return 0;
276 RtlUnicodeToMultiByteN( dst, n, &len, src, strlenW(src)*sizeof(WCHAR) );
277 if (len < n) dst[len] = 0;
278 }
279 return len;
280}
281
282
283/*********************************************************************
284 * mbstowcs (NTDLL.@)
285 */
286INT __cdecl NTDLL_mbstowcs( LPWSTR dst, LPCSTR src, INT n )
287{
288 DWORD len;
289
290 if (!dst)
291 {
292 RtlMultiByteToUnicodeSize( &len, src, strlen(src) );
293 }
294 else
295 {
296 if (n <= 0) return 0;
297 RtlMultiByteToUnicodeN( dst, n*sizeof(WCHAR), &len, src, strlen(src) );
298 if (len / sizeof(WCHAR) < n) dst[len / sizeof(WCHAR)] = 0;
299 }
300 return len / sizeof(WCHAR);
301}
302
303
304/*********************************************************************
305 * wcstol (NTDLL.@)
306 * Like strtol, but for wide character strings.
307 */
308INT __cdecl NTDLL_wcstol(LPCWSTR s,LPWSTR *end,INT base)
309{
310 UNICODE_STRING uni;
311 ANSI_STRING ansi;
312 INT ret;
313 LPSTR endA;
314
315 RtlInitUnicodeString( &uni, s );
316 RtlUnicodeStringToAnsiString( &ansi, &uni, TRUE );
317 ret = strtol( ansi.Buffer, &endA, base );
318 if (end)
319 {
320 DWORD len;
321 RtlMultiByteToUnicodeSize( &len, ansi.Buffer, endA - ansi.Buffer );
322 *end = (LPWSTR)s + len/sizeof(WCHAR);
323 }
324 RtlFreeAnsiString( &ansi );
325 return ret;
326}
327
328
329/*********************************************************************
330 * wcstoul (NTDLL.@)
331 * Like strtoul, but for wide character strings.
332 */
333INT __cdecl NTDLL_wcstoul(LPCWSTR s,LPWSTR *end,INT base)
334{
335 UNICODE_STRING uni;
336 ANSI_STRING ansi;
337 INT ret;
338 LPSTR endA;
339
340 RtlInitUnicodeString( &uni, s );
341 RtlUnicodeStringToAnsiString( &ansi, &uni, TRUE );
342 ret = strtoul( ansi.Buffer, &endA, base );
343 if (end)
344 {
345 DWORD len;
346 RtlMultiByteToUnicodeSize( &len, ansi.Buffer, endA - ansi.Buffer );
347 *end = (LPWSTR)s + len/sizeof(WCHAR);
348 }
349 RtlFreeAnsiString( &ansi );
350 return ret;
351}
352
353
354/*********************************************************************
355 * iswctype (NTDLL.@)
356 */
357INT __cdecl NTDLL_iswctype( WCHAR wc, WCHAR wct )
358{
359 return (get_char_typeW(wc) & 0xfff) & wct;
360}
361
362
363/*********************************************************************
364 * iswalpha (NTDLL.@)
365 */
366INT __cdecl NTDLL_iswalpha( WCHAR wc )
367{
368 return get_char_typeW(wc) & C1_ALPHA;
369}
370
371
372/*********************************************************************
373 * _ultow (NTDLL.@)
374 * Like _ultoa, but for wide character strings.
375 */
376LPWSTR __cdecl _ultow(ULONG value, LPWSTR string, INT radix)
377{
378 WCHAR tmp[33];
379 LPWSTR tp = tmp;
380 LPWSTR sp;
381 LONG i;
382 ULONG v = value;
383
384 if (radix > 36 || radix <= 1)
385 return 0;
386
387 while (v || tp == tmp)
388 {
389 i = v % radix;
390 v = v / radix;
391 if (i < 10)
392 *tp++ = i + '0';
393 else
394 *tp++ = i + 'a' - 10;
395 }
396
397 sp = string;
398 while (tp > tmp)
399 *sp++ = *--tp;
400 *sp = 0;
401 return string;
402}
403
404/*********************************************************************
405 * _wtol (NTDLL.@)
406 * Like atol, but for wide character strings.
407 */
408LONG __cdecl _wtol(LPWSTR string)
409{
410 char buffer[30];
411 NTDLL_wcstombs( buffer, string, sizeof(buffer) );
412 return atol( buffer );
413}
414
415/*********************************************************************
416 * _wtoi (NTDLL.@)
417 */
418INT __cdecl _wtoi(LPWSTR string)
419{
420 return _wtol(string);
421}
422
423/* INTERNAL: Wide char snprintf
424 * If you fix a bug in this function, fix it in msvcrt/wcs.c also!
425 */
426static int __cdecl NTDLL_vsnwprintf(WCHAR *str, unsigned int len,
427 const WCHAR *format, va_list valist)
428{
429 unsigned int written = 0;
430 const WCHAR *iter = format;
431 char bufa[256], fmtbufa[64], *fmta;
432
433 TRACE("(%d,%s)\n",len,debugstr_w(format));
434
435 while (*iter)
436 {
437 while (*iter && *iter != (WCHAR)L'%')
438 {
439 if (written++ >= len)
440 return -1;
441 *str++ = *iter++;
442 }
443 if (*iter == (WCHAR)L'%')
444 {
445 fmta = fmtbufa;
446 *fmta++ = *iter++;
447 while (*iter == (WCHAR)L'0' ||
448 *iter == (WCHAR)L'+' ||
449 *iter == (WCHAR)L'-' ||
450 *iter == (WCHAR)L' ' ||
451 *iter == (WCHAR)L'0' ||
452 *iter == (WCHAR)L'*' ||
453 *iter == (WCHAR)L'#')
454 {
455 if (*iter == (WCHAR)L'*')
456 {
457 char *buffiter = bufa;
458 int fieldlen = va_arg(valist, int);
459 sprintf(buffiter, "%d", fieldlen);
460 while (*buffiter)
461 *fmta++ = *buffiter++;
462 }
463 else
464 *fmta++ = *iter;
465 iter++;
466 }
467
468 while (isdigit(*iter))
469 *fmta++ = *iter++;
470
471 if (*iter == (WCHAR)L'.')
472 {
473 *fmta++ = *iter++;
474 if (*iter == (WCHAR)L'*')
475 {
476 char *buffiter = bufa;
477 int fieldlen = va_arg(valist, int);
478 sprintf(buffiter, "%d", fieldlen);
479 while (*buffiter)
480 *fmta++ = *buffiter++;
481 }
482 else
483 while (isdigit(*iter))
484 *fmta++ = *iter++;
485 }
486 if (*iter == (WCHAR)L'h' ||
487 *iter == (WCHAR)L'l')
488 {
489 *fmta++ = *iter++;
490 *fmta++ = *iter++;
491 }
492
493 switch (*iter)
494 {
495 case (WCHAR)L's':
496 {
497 static const WCHAR none[] = { '(', 'n', 'u', 'l', 'l', ')', 0 };
498 const WCHAR *wstr = va_arg(valist, const WCHAR *);
499 const WCHAR *striter = wstr ? wstr : none;
500 while (*striter)
501 {
502 if (written++ >= len)
503 return -1;
504 *str++ = *striter++;
505 }
506 iter++;
507 break;
508 }
509
510 case (WCHAR)L'c':
511 if (written++ >= len)
512 return -1;
513 *str++ = (WCHAR)va_arg(valist, int);
514 iter++;
515 break;
516
517 default:
518 {
519 /* For non wc types, use system sprintf and append to wide char output */
520 /* FIXME: for unrecognised types, should ignore % when printing */
521 char *bufaiter = bufa;
522 if (*iter == (WCHAR)L'p')
523 sprintf(bufaiter, "%08lX", va_arg(valist, long));
524 else
525 {
526 *fmta++ = *iter;
527 *fmta = '\0';
528 if (*iter == (WCHAR)L'f')
529 sprintf(bufaiter, fmtbufa, va_arg(valist, double));
530 else
531 sprintf(bufaiter, fmtbufa, va_arg(valist, void *));
532 }
533 while (*bufaiter)
534 {
535 if (written++ >= len)
536 return -1;
537 *str++ = *bufaiter++;
538 }
539 iter++;
540 break;
541 }
542 }
543 }
544 }
545 if (written >= len)
546 return -1;
547 *str++ = (WCHAR)L'\0';
548 return (int)written;
549}
550
551
552/***********************************************************************
553 * _snwprintf (NTDLL.@)
554 */
555int __cdecl _snwprintf(WCHAR *str, unsigned int len, const WCHAR *format, ...)
556{
557 int retval;
558 va_list valist;
559 va_start(valist, format);
560 retval = NTDLL_vsnwprintf(str, len, format, valist);
561 va_end(valist);
562 return retval;
563}
564
565
566/***********************************************************************
567 * swprintf (NTDLL.@)
568 */
569int __cdecl NTDLL_swprintf(WCHAR *str, const WCHAR *format, ...)
570{
571 int retval;
572 va_list valist;
573 va_start(valist, format);
574 retval = NTDLL_vsnwprintf(str, INT_MAX, format, valist);
575 va_end(valist);
576 return retval;
577}
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