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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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* _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 _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* _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* _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* _wcsset( MSVCRT_wchar_t* str, MSVCRT_wchar_t c )
105 MSVCRT_wchar_t* ret = str;
106 while (*str) *str++ = c;
110 /*********************************************************************
113 double 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( ( !left && flags->LeftAlign ) ||
289 ( left && !flags->LeftAlign ) ||
290 ( left && flags->PadZero ) )
292 for( i=0; (i<(flags->FieldLength-len)) && (r>=0); i++ )
295 r = pf_output_stringA( out, "0", 1 );
297 r = pf_output_stringA( out, " ", 1 );
304 static inline int pf_output_format_W( pf_output *out, LPCWSTR str,
305 int len, pf_flags *flags )
310 len = strlenW( str );
312 if (flags->Precision >= 0 && flags->Precision < len)
313 len = flags->Precision;
315 r = pf_fill( out, len, flags, 1 );
318 r = pf_output_stringW( out, str, len );
321 r = pf_fill( out, len, flags, 0 );
326 static inline int pf_output_format_A( pf_output *out, LPCSTR str,
327 int len, pf_flags *flags )
334 if (flags->Precision >= 0 && flags->Precision < len)
335 len = flags->Precision;
337 r = pf_fill( out, len, flags, 1 );
340 r = pf_output_stringA( out, str, len );
343 r = pf_fill( out, len, flags, 0 );
348 static inline BOOL pf_is_double_format( char fmt )
350 char float_fmts[] = "aefg";
353 fmt = tolower( fmt );
354 return strchr( float_fmts, fmt ) ? TRUE : FALSE;
357 static inline BOOL pf_is_valid_format( char fmt )
359 char float_fmts[] = "acdefginoux";
362 fmt = tolower( fmt );
363 return strchr( float_fmts, fmt ) ? TRUE : FALSE;
366 static void pf_rebuild_format_string( char *p, pf_flags *flags )
371 if( flags->LeftAlign )
372 *p++ = flags->LeftAlign;
373 if( flags->Alternate )
374 *p++ = flags->Alternate;
376 *p++ = flags->PadZero;
377 if( flags->FieldLength )
379 sprintf(p, "%d", flags->FieldLength);
382 if( flags->Precision >= 0 )
384 sprintf(p, ".%d", flags->Precision);
387 *p++ = flags->Format;
391 /*********************************************************************
392 * pf_vsnprintf (INTERNAL)
394 * implements both A and W vsnprintf functions
396 static int pf_vsnprintf( pf_output *out, const WCHAR *format, va_list valist )
399 LPCWSTR q, p = format;
402 TRACE("format is %s\n",debugstr_w(format));
405 q = strchrW( p, '%' );
407 /* there's no % characters left, output the rest of the string */
410 r = pf_output_stringW(out, p, -1);
417 /* there's characters before the %, output them */
420 r = pf_output_stringW(out, p, q - p);
426 /* we must be at a % now, skip over it */
430 /* output a single % character */
433 r = pf_output_stringW(out, p++, 1);
439 /* parse the flags */
440 memset( &flags, 0, sizeof flags );
443 if( *p == '+' || *p == ' ' )
446 flags.LeftAlign = *p;
450 flags.Alternate = *p;
456 /* deal with the field width specifier */
457 flags.FieldLength = 0;
460 flags.FieldLength = va_arg( valist, int );
463 else while( isdigit(*p) )
465 flags.FieldLength *= 10;
466 flags.FieldLength += *p++ - '0';
469 /* deal with precision */
470 flags.Precision = -1;
477 flags.Precision = va_arg( valist, int );
480 else while( isdigit(*p) )
482 flags.Precision *= 10;
483 flags.Precision += *p++ - '0';
487 /* deal with integer width modifier */
490 if( *p == 'h' || *p == 'l' || *p == 'L' )
492 if( flags.IntegerLength == *p ) /* FIXME: this is wrong */
493 flags.IntegerDouble++;
495 flags.IntegerLength = *p;
499 flags.WideString = *p++;
509 /* output a unicode string */
510 if( ( flags.Format == 's' && (flags.WideString || flags.IntegerLength == 'l' )) ||
511 ( !out->unicode && flags.Format == 'S' ) ||
512 ( out->unicode && flags.Format == 's' ) )
514 LPCWSTR str = va_arg( valist, const WCHAR * );
517 r = pf_output_format_W( out, str, -1, &flags );
519 r = pf_output_format_A( out, "(null)", -1, &flags );
522 /* output a ASCII string */
523 else if( ( flags.Format == 's' && flags.IntegerLength == 'h' ) ||
524 ( out->unicode && flags.Format == 'S' ) ||
525 ( !out->unicode && flags.Format == 's' ) )
527 LPCSTR str = va_arg( valist, const CHAR * );
530 r = pf_output_format_A( out, str, -1, &flags );
532 r = pf_output_format_A( out, "(null)", -1, &flags );
535 /* output a single wide character */
536 else if( ( flags.Format == 'c' && flags.IntegerLength == 'w' ) ||
537 ( out->unicode && flags.Format == 'c' ) ||
538 ( !out->unicode && flags.Format == 'C' ) )
540 WCHAR ch = va_arg( valist, int );
542 r = pf_output_format_W( out, &ch, 1, &flags );
545 /* output a single ascii character */
546 else if( ( flags.Format == 'c' && flags.IntegerLength == 'h' ) ||
547 ( out->unicode && flags.Format == 'C' ) ||
548 ( !out->unicode && flags.Format == 'c' ) )
550 CHAR ch = va_arg( valist, int );
552 r = pf_output_format_A( out, &ch, 1, &flags );
555 /* output a pointer */
556 else if( flags.Format == 'p' )
561 if( flags.Alternate )
562 sprintf(pointer, "0X%08lX", va_arg(valist, long));
564 sprintf(pointer, "%08lX", va_arg(valist, long));
565 r = pf_output_format_A( out, pointer, -1, &flags );
569 else if( flags.Format == 'n' )
571 int *x = va_arg(valist, int *);
575 /* deal with integers and floats using libc's printf */
576 else if( pf_is_valid_format( flags.Format ) )
578 char fmt[20], number[40], *x = number;
580 if( flags.FieldLength >= sizeof number )
581 x = HeapAlloc( GetProcessHeap(), 0, flags.FieldLength+1 );
583 pf_rebuild_format_string( fmt, &flags );
585 if( pf_is_double_format( flags.Format ) )
586 sprintf( x, fmt, va_arg(valist, double) );
588 sprintf( x, fmt, va_arg(valist, int) );
590 r = pf_output_stringA( out, x, -1 );
592 HeapFree( GetProcessHeap(), 0, number );
602 /* check we reached the end, and null terminate the string */
604 r = pf_output_stringW( out, p, 1 );
608 return out->used - 1;
611 /*********************************************************************
612 * _vsnprintf (MSVCRT.@)
614 int MSVCRT_vsnprintf( char *str, unsigned int len,
615 const char *format, va_list valist )
618 LPWSTR formatW = NULL;
629 sz = MultiByteToWideChar( CP_ACP, 0, format, -1, NULL, 0 );
630 formatW = HeapAlloc( GetProcessHeap(), 0, sz*sizeof(WCHAR) );
631 MultiByteToWideChar( CP_ACP, 0, format, -1, formatW, sz );
634 r = pf_vsnprintf( &out, formatW, valist );
636 HeapFree( GetProcessHeap(), 0, formatW );
641 /*********************************************************************
642 * _vsnwsprintf (MSVCRT.@)
644 int MSVCRT_vsnwprintf( MSVCRT_wchar_t *str, unsigned int len,
645 const WCHAR *format, va_list valist )
654 return pf_vsnprintf( &out, format, valist );
657 /*********************************************************************
660 int MSVCRT_sprintf( char *str, const char *format, ... )
665 va_start( ap, format );
666 r = MSVCRT_vsnprintf( str, INT_MAX, format, ap );
671 /*********************************************************************
672 * swprintf (MSVCRT.@)
674 int MSVCRT_swprintf( MSVCRT_wchar_t *str, const MSVCRT_wchar_t *format, ... )
679 va_start( ap, format );
680 r = MSVCRT_vsnwprintf( str, INT_MAX, format, ap );
685 /*********************************************************************
686 * vswprintf (MSVCRT.@)
688 int MSVCRT_vswprintf( MSVCRT_wchar_t* str, const MSVCRT_wchar_t* format, va_list args )
690 return MSVCRT_vsnwprintf( str, INT_MAX, format, args );
693 /*********************************************************************
696 int MSVCRT_wcscoll( const MSVCRT_wchar_t* str1, const MSVCRT_wchar_t* str2 )
698 /* FIXME: handle collates */
699 return strcmpW( str1, str2 );
702 /*********************************************************************
705 MSVCRT_wchar_t* MSVCRT_wcspbrk( const MSVCRT_wchar_t* str, const MSVCRT_wchar_t* accept )
707 const MSVCRT_wchar_t* p;
710 for (p = accept; *p; p++) if (*p == *str) return (MSVCRT_wchar_t*)str;
716 /*********************************************************************
719 INT MSVCRT_wctomb( char *dst, MSVCRT_wchar_t ch )
721 return WideCharToMultiByte( CP_ACP, 0, &ch, 1, dst, 6, NULL, NULL );
724 /*********************************************************************
725 * iswalnum (MSVCRT.@)
727 INT MSVCRT_iswalnum( MSVCRT_wchar_t wc )
729 return isalnumW( wc );
732 /*********************************************************************
733 * iswalpha (MSVCRT.@)
735 INT MSVCRT_iswalpha( MSVCRT_wchar_t wc )
737 return isalphaW( wc );
740 /*********************************************************************
741 * iswcntrl (MSVCRT.@)
743 INT MSVCRT_iswcntrl( MSVCRT_wchar_t wc )
745 return iscntrlW( wc );
748 /*********************************************************************
749 * iswdigit (MSVCRT.@)
751 INT MSVCRT_iswdigit( MSVCRT_wchar_t wc )
753 return isdigitW( wc );
756 /*********************************************************************
757 * iswgraph (MSVCRT.@)
759 INT MSVCRT_iswgraph( MSVCRT_wchar_t wc )
761 return isgraphW( wc );
764 /*********************************************************************
765 * iswlower (MSVCRT.@)
767 INT MSVCRT_iswlower( MSVCRT_wchar_t wc )
769 return islowerW( wc );
772 /*********************************************************************
773 * iswprint (MSVCRT.@)
775 INT MSVCRT_iswprint( MSVCRT_wchar_t wc )
777 return isprintW( wc );
780 /*********************************************************************
781 * iswpunct (MSVCRT.@)
783 INT MSVCRT_iswpunct( MSVCRT_wchar_t wc )
785 return ispunctW( wc );
788 /*********************************************************************
789 * iswspace (MSVCRT.@)
791 INT MSVCRT_iswspace( MSVCRT_wchar_t wc )
793 return isspaceW( wc );
796 /*********************************************************************
797 * iswupper (MSVCRT.@)
799 INT MSVCRT_iswupper( MSVCRT_wchar_t wc )
801 return isupperW( wc );
804 /*********************************************************************
805 * iswxdigit (MSVCRT.@)
807 INT MSVCRT_iswxdigit( MSVCRT_wchar_t wc )
809 return isxdigitW( wc );