2 * msvcrt.dll wide-char functions
4 * Copyright 1999 Alexandre Julliard
5 * Copyright 2000 Jon Griffiths
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.
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.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
27 #include "wine/unicode.h"
28 #include "wine/debug.h"
30 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
33 /* INTERNAL: MSVCRT_malloc() based wstrndup */
34 MSVCRT_wchar_t* msvcrt_wstrndup(const MSVCRT_wchar_t *buf, unsigned int size)
37 unsigned int len = strlenW(buf), max_len;
39 max_len = size <= len? size : len + 1;
41 ret = MSVCRT_malloc(max_len * sizeof (MSVCRT_wchar_t));
44 memcpy(ret,buf,max_len * sizeof (MSVCRT_wchar_t));
50 /*********************************************************************
53 MSVCRT_wchar_t* CDECL _wcsdup( const MSVCRT_wchar_t* str )
55 MSVCRT_wchar_t* ret = NULL;
58 int size = (strlenW(str) + 1) * sizeof(MSVCRT_wchar_t);
59 ret = MSVCRT_malloc( size );
60 if (ret) memcpy( ret, str, size );
65 /*********************************************************************
66 * _wcsicoll (MSVCRT.@)
68 INT CDECL _wcsicoll( const MSVCRT_wchar_t* str1, const MSVCRT_wchar_t* str2 )
70 /* FIXME: handle collates */
71 return strcmpiW( str1, str2 );
74 /*********************************************************************
77 MSVCRT_wchar_t* CDECL _wcsnset( MSVCRT_wchar_t* str, MSVCRT_wchar_t c, MSVCRT_size_t n )
79 MSVCRT_wchar_t* ret = str;
80 while ((n-- > 0) && *str) *str++ = c;
84 /*********************************************************************
87 MSVCRT_wchar_t* CDECL _wcsrev( MSVCRT_wchar_t* str )
89 MSVCRT_wchar_t* ret = str;
90 MSVCRT_wchar_t* end = str + strlenW(str) - 1;
93 MSVCRT_wchar_t t = *end;
100 /*********************************************************************
103 MSVCRT_wchar_t* CDECL _wcsset( MSVCRT_wchar_t* str, MSVCRT_wchar_t c )
105 MSVCRT_wchar_t* ret = str;
106 while (*str) *str++ = c;
110 /*********************************************************************
113 double CDECL MSVCRT_wcstod(const MSVCRT_wchar_t* lpszStr, MSVCRT_wchar_t** end)
115 const MSVCRT_wchar_t* str = lpszStr;
117 double ret = 0, divisor = 10.0;
119 TRACE("(%s,%p) semi-stub\n", debugstr_w(lpszStr), end);
122 * - Should set errno on failure
123 * - Should fail on overflow
124 * - Need to check which input formats are allowed
126 while (isspaceW(*str))
135 while (isdigitW(*str))
137 ret = ret * 10.0 + (*str - '0');
142 while (isdigitW(*str))
144 ret = ret + (*str - '0') / divisor;
149 if (*str == 'E' || *str == 'e' || *str == 'D' || *str == 'd')
151 int negativeExponent = 0;
155 negativeExponent = 1;
158 while (isdigitW(*str))
160 exponent = exponent * 10 + (*str - '0');
165 if (negativeExponent)
166 ret = ret / pow(10.0, exponent);
168 ret = ret * pow(10.0, exponent);
176 *end = (MSVCRT_wchar_t*)str;
178 TRACE("returning %g\n", ret);
183 typedef struct pf_output_t
194 typedef struct pf_flags_t
196 char Sign, LeftAlign, Alternate, PadZero;
197 int FieldLength, Precision;
198 char IntegerLength, IntegerDouble;
204 * writes a string of characters to the output
205 * returns -1 if the string doesn't fit in the output buffer
206 * return the length of the string if all characters were written
208 static inline int pf_output_stringW( pf_output *out, LPCWSTR str, int len )
210 int space = out->len - out->used;
213 len = strlenW( str );
216 LPWSTR p = out->buf.W + out->used;
220 memcpy( p, str, len*sizeof(WCHAR) );
225 memcpy( p, str, space*sizeof(WCHAR) );
230 int n = WideCharToMultiByte( CP_ACP, 0, str, len, NULL, 0, NULL, NULL );
231 LPSTR p = out->buf.A + out->used;
235 WideCharToMultiByte( CP_ACP, 0, str, len, p, n, NULL, NULL );
240 WideCharToMultiByte( CP_ACP, 0, str, len, p, space, NULL, NULL );
246 static inline int pf_output_stringA( pf_output *out, LPCSTR str, int len )
248 int space = out->len - out->used;
254 LPSTR p = out->buf.A + out->used;
258 memcpy( p, str, len );
263 memcpy( p, str, space );
268 int n = MultiByteToWideChar( CP_ACP, 0, str, len, NULL, 0 );
269 LPWSTR p = out->buf.W + out->used;
273 MultiByteToWideChar( CP_ACP, 0, str, len, p, n );
278 MultiByteToWideChar( CP_ACP, 0, str, len, p, space );
284 static inline int pf_fill( pf_output *out, int len, pf_flags *flags, char left )
288 if( flags->Sign && !( flags->Format == 'd' || flags->Format == 'i' ) )
291 if( left && flags->Sign )
293 flags->FieldLength--;
295 r = pf_output_stringA( out, &flags->Sign, 1 );
298 if( ( !left && flags->LeftAlign ) ||
299 ( left && !flags->LeftAlign ))
301 for( i=0; (i<(flags->FieldLength-len)) && (r>=0); i++ )
303 if( left && flags->PadZero )
304 r = pf_output_stringA( out, "0", 1 );
306 r = pf_output_stringA( out, " ", 1 );
310 if( left && flags->Sign && !flags->PadZero )
311 r = pf_output_stringA( out, &flags->Sign, 1 );
316 static inline int pf_output_format_W( pf_output *out, LPCWSTR str,
317 int len, pf_flags *flags )
322 len = strlenW( str );
324 if (flags->Precision >= 0 && flags->Precision < len)
325 len = flags->Precision;
327 r = pf_fill( out, len, flags, 1 );
330 r = pf_output_stringW( out, str, len );
333 r = pf_fill( out, len, flags, 0 );
338 static inline int pf_output_format_A( pf_output *out, LPCSTR str,
339 int len, pf_flags *flags )
346 if (flags->Precision >= 0 && flags->Precision < len)
347 len = flags->Precision;
349 r = pf_fill( out, len, flags, 1 );
352 r = pf_output_stringA( out, str, len );
355 r = pf_fill( out, len, flags, 0 );
360 static int pf_handle_string_format( pf_output *out, const void* str, int len,
361 pf_flags *flags, BOOL capital_letter)
363 if(str == NULL) /* catch NULL pointer */
364 return pf_output_format_A( out, "(null)", -1, flags);
366 /* prefixes take priority over %c,%s vs. %C,%S, so we handle them first */
367 if(flags->WideString || flags->IntegerLength == 'l')
368 return pf_output_format_W( out, str, len, flags);
369 if(flags->IntegerLength == 'h')
370 return pf_output_format_A( out, str, len, flags);
372 /* %s,%c -> chars in ansi functions & wchars in unicode
373 * %S,%C -> wchars in ansi functions & chars in unicode */
374 if( capital_letter == out->unicode) /* either both TRUE or both FALSE */
375 return pf_output_format_A( out, str, len, flags);
377 return pf_output_format_W( out, str, len, flags);
380 static inline BOOL pf_is_integer_format( char fmt )
382 static const char float_fmts[] = "diouxX";
385 return strchr( float_fmts, fmt ) ? TRUE : FALSE;
388 static inline BOOL pf_is_double_format( char fmt )
390 static const char float_fmts[] = "aeEfgG";
393 return strchr( float_fmts, fmt ) ? TRUE : FALSE;
396 static inline BOOL pf_is_valid_format( char fmt )
398 static const char float_fmts[] = "acCdeEfgGinouxX";
401 return strchr( float_fmts, fmt ) ? TRUE : FALSE;
404 static void pf_rebuild_format_string( char *p, pf_flags *flags )
409 if( flags->LeftAlign )
410 *p++ = flags->LeftAlign;
411 if( flags->Alternate )
412 *p++ = flags->Alternate;
414 *p++ = flags->PadZero;
415 if( flags->FieldLength )
417 sprintf(p, "%d", flags->FieldLength);
420 if( flags->Precision >= 0 )
422 sprintf(p, ".%d", flags->Precision);
425 *p++ = flags->Format;
429 /* pf_integer_conv: prints x to buf, including alternate formats,
431 static void pf_integer_conv( char *buf, pf_flags *flags, LONGLONG x )
440 if( flags->Format == 'o' )
442 else if( flags->Format == 'x' || flags->Format == 'X' )
445 if( flags->Format == 'X' )
446 digits = "0123456789ABCDEFX";
448 digits = "0123456789abcdefx";
450 if( x < 0 && ( flags->Format == 'd' || flags->Format == 'i' ) )
456 /* Do conversion (backwards) */
458 if( x == 0 && flags->Precision )
463 j = (ULONGLONG) x % base;
464 x = (ULONGLONG) x / base;
465 tmp[i++] = digits[j];
467 k = flags->Precision - i;
470 if( flags->Alternate )
474 tmp[i++] = digits[16];
477 else if( base == 8 && tmp[i-1] != '0' )
481 /* Reverse for buf */
487 /* Adjust precision so pf_fill won't truncate the number later */
488 flags->Precision = strlen( buf );
493 /*********************************************************************
494 * pf_vsnprintf (INTERNAL)
496 * implements both A and W vsnprintf functions
498 static int pf_vsnprintf( pf_output *out, const WCHAR *format, va_list valist )
501 LPCWSTR q, p = format;
504 TRACE("format is %s\n",debugstr_w(format));
507 q = strchrW( p, '%' );
509 /* there's no % characters left, output the rest of the string */
512 r = pf_output_stringW(out, p, -1);
519 /* there's characters before the %, output them */
522 r = pf_output_stringW(out, p, q - p);
528 /* we must be at a % now, skip over it */
532 /* output a single % character */
535 r = pf_output_stringW(out, p++, 1);
541 /* parse the flags */
542 memset( &flags, 0, sizeof flags );
545 if( *p == '+' || *p == ' ' )
547 if ( flags.Sign != '+' )
551 flags.LeftAlign = *p;
555 flags.Alternate = *p;
561 /* deal with the field width specifier */
562 flags.FieldLength = 0;
565 flags.FieldLength = va_arg( valist, int );
568 else while( isdigit(*p) )
570 flags.FieldLength *= 10;
571 flags.FieldLength += *p++ - '0';
574 /* deal with precision */
575 flags.Precision = -1;
582 flags.Precision = va_arg( valist, int );
585 else while( isdigit(*p) )
587 flags.Precision *= 10;
588 flags.Precision += *p++ - '0';
592 /* deal with integer width modifier */
595 if( *p == 'h' || *p == 'l' || *p == 'L' )
597 flags.IntegerLength = *p;
602 if( *(p+1) == '6' && *(p+2) == '4' )
604 flags.IntegerDouble++;
607 else if( *(p+1) == '3' && *(p+2) == '2' )
609 else if( isdigit(*(p+1)) || *(p+1) == 0 )
615 flags.WideString = *p++;
625 /* output a string */
626 if( flags.Format == 's' || flags.Format == 'S' )
627 r = pf_handle_string_format( out, va_arg(valist, const void*), -1,
628 &flags, (flags.Format == 'S') );
630 /* output a single character */
631 else if( flags.Format == 'c' || flags.Format == 'C' )
633 INT ch = va_arg( valist, int );
635 r = pf_handle_string_format( out, &ch, 1, &flags, (flags.Format == 'C') );
638 /* output a pointer */
639 else if( flags.Format == 'p' )
644 if( flags.Alternate )
645 sprintf(pointer, "0X%08lX", va_arg(valist, long));
647 sprintf(pointer, "%08lX", va_arg(valist, long));
648 r = pf_output_format_A( out, pointer, -1, &flags );
652 else if( flags.Format == 'n' )
654 int *x = va_arg(valist, int *);
658 /* deal with 64-bit integers */
659 else if( pf_is_integer_format( flags.Format ) && flags.IntegerDouble )
661 char number[40], *x = number;
663 if( flags.FieldLength >= sizeof number )
664 x = HeapAlloc( GetProcessHeap(), 0, flags.FieldLength+1 );
666 pf_integer_conv( x, &flags, va_arg(valist, LONGLONG) );
668 r = pf_output_format_A( out, x, -1, &flags );
670 HeapFree( GetProcessHeap(), 0, number );
673 /* deal with integers and floats using libc's printf */
674 else if( pf_is_valid_format( flags.Format ) )
676 char fmt[20], number[40], *x = number;
678 if( flags.FieldLength >= sizeof number )
679 x = HeapAlloc( GetProcessHeap(), 0, flags.FieldLength+1 );
681 pf_rebuild_format_string( fmt, &flags );
683 if( pf_is_double_format( flags.Format ) )
684 sprintf( x, fmt, va_arg(valist, double) );
686 sprintf( x, fmt, va_arg(valist, int) );
688 r = pf_output_stringA( out, x, -1 );
690 HeapFree( GetProcessHeap(), 0, number );
700 /* check we reached the end, and null terminate the string */
702 pf_output_stringW( out, p, 1 );
704 return out->used - 1;
707 /*********************************************************************
708 * _vsnprintf (MSVCRT.@)
710 int CDECL MSVCRT_vsnprintf( char *str, unsigned int len,
711 const char *format, va_list valist )
714 LPWSTR formatW = NULL;
725 sz = MultiByteToWideChar( CP_ACP, 0, format, -1, NULL, 0 );
726 formatW = HeapAlloc( GetProcessHeap(), 0, sz*sizeof(WCHAR) );
727 MultiByteToWideChar( CP_ACP, 0, format, -1, formatW, sz );
730 r = pf_vsnprintf( &out, formatW, valist );
732 HeapFree( GetProcessHeap(), 0, formatW );
737 /*********************************************************************
738 * _snprintf (MSVCRT.@)
740 int CDECL MSVCRT__snprintf(char *str, unsigned int len, const char *format, ...)
744 va_start(valist, format);
745 retval = MSVCRT_vsnprintf(str, len, format, valist);
750 /*********************************************************************
751 * _vsnwsprintf (MSVCRT.@)
753 int CDECL MSVCRT_vsnwprintf( MSVCRT_wchar_t *str, unsigned int len,
754 const MSVCRT_wchar_t *format, va_list valist )
763 return pf_vsnprintf( &out, format, valist );
766 /*********************************************************************
767 * _snwprintf (MSVCRT.@)
769 int CDECL MSVCRT__snwprintf( MSVCRT_wchar_t *str, unsigned int len, const MSVCRT_wchar_t *format, ...)
773 va_start(valist, format);
774 retval = MSVCRT_vsnwprintf(str, len, format, valist);
779 /*********************************************************************
782 int CDECL MSVCRT_sprintf( char *str, const char *format, ... )
787 va_start( ap, format );
788 r = MSVCRT_vsnprintf( str, INT_MAX, format, ap );
793 /*********************************************************************
794 * swprintf (MSVCRT.@)
796 int CDECL MSVCRT_swprintf( MSVCRT_wchar_t *str, const MSVCRT_wchar_t *format, ... )
801 va_start( ap, format );
802 r = MSVCRT_vsnwprintf( str, INT_MAX, format, ap );
807 /*********************************************************************
808 * vswprintf (MSVCRT.@)
810 int CDECL MSVCRT_vswprintf( MSVCRT_wchar_t* str, const MSVCRT_wchar_t* format, va_list args )
812 return MSVCRT_vsnwprintf( str, INT_MAX, format, args );
815 /*********************************************************************
818 int CDECL MSVCRT_wcscoll( const MSVCRT_wchar_t* str1, const MSVCRT_wchar_t* str2 )
820 /* FIXME: handle collates */
821 return strcmpW( str1, str2 );
824 /*********************************************************************
827 MSVCRT_wchar_t* CDECL MSVCRT_wcspbrk( const MSVCRT_wchar_t* str, const MSVCRT_wchar_t* accept )
829 const MSVCRT_wchar_t* p;
832 for (p = accept; *p; p++) if (*p == *str) return (MSVCRT_wchar_t*)str;
838 /*********************************************************************
841 MSVCRT_wchar_t * CDECL MSVCRT_wcstok( MSVCRT_wchar_t *str, const MSVCRT_wchar_t *delim )
843 thread_data_t *data = msvcrt_get_thread_data();
847 if (!(str = data->wcstok_next)) return NULL;
849 while (*str && strchrW( delim, *str )) str++;
850 if (!*str) return NULL;
852 while (*str && !strchrW( delim, *str )) str++;
853 if (*str) *str++ = 0;
854 data->wcstok_next = str;
859 /*********************************************************************
862 INT CDECL MSVCRT_wctomb( char *dst, MSVCRT_wchar_t ch )
864 return WideCharToMultiByte( CP_ACP, 0, &ch, 1, dst, 6, NULL, NULL );
867 /*********************************************************************
868 * iswalnum (MSVCRT.@)
870 INT CDECL MSVCRT_iswalnum( MSVCRT_wchar_t wc )
872 return isalnumW( wc );
875 /*********************************************************************
876 * iswalpha (MSVCRT.@)
878 INT CDECL MSVCRT_iswalpha( MSVCRT_wchar_t wc )
880 return isalphaW( wc );
883 /*********************************************************************
884 * iswcntrl (MSVCRT.@)
886 INT CDECL MSVCRT_iswcntrl( MSVCRT_wchar_t wc )
888 return iscntrlW( wc );
891 /*********************************************************************
892 * iswdigit (MSVCRT.@)
894 INT CDECL MSVCRT_iswdigit( MSVCRT_wchar_t wc )
896 return isdigitW( wc );
899 /*********************************************************************
900 * iswgraph (MSVCRT.@)
902 INT CDECL MSVCRT_iswgraph( MSVCRT_wchar_t wc )
904 return isgraphW( wc );
907 /*********************************************************************
908 * iswlower (MSVCRT.@)
910 INT CDECL MSVCRT_iswlower( MSVCRT_wchar_t wc )
912 return islowerW( wc );
915 /*********************************************************************
916 * iswprint (MSVCRT.@)
918 INT CDECL MSVCRT_iswprint( MSVCRT_wchar_t wc )
920 return isprintW( wc );
923 /*********************************************************************
924 * iswpunct (MSVCRT.@)
926 INT CDECL MSVCRT_iswpunct( MSVCRT_wchar_t wc )
928 return ispunctW( wc );
931 /*********************************************************************
932 * iswspace (MSVCRT.@)
934 INT CDECL MSVCRT_iswspace( MSVCRT_wchar_t wc )
936 return isspaceW( wc );
939 /*********************************************************************
940 * iswupper (MSVCRT.@)
942 INT CDECL MSVCRT_iswupper( MSVCRT_wchar_t wc )
944 return isupperW( wc );
947 /*********************************************************************
948 * iswxdigit (MSVCRT.@)
950 INT CDECL MSVCRT_iswxdigit( MSVCRT_wchar_t wc )
952 return isxdigitW( wc );