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wine/dlls/ntdll/wcstring.c

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/*
* NTDLL wide-char functions
*
* Copyright 2000 Alexandre Julliard
* Copyright 2000 Jon Griffiths
* Copyright 2003 Thomas Mertes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <ctype.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include "windef.h"
#include "winternl.h"
#include "wine/unicode.h"
/*********************************************************************
* _wcsicmp (NTDLL.@)
*/
INT __cdecl NTDLL__wcsicmp( LPCWSTR str1, LPCWSTR str2 )
{
return strcmpiW( str1, str2 );
}
/*********************************************************************
* _wcslwr (NTDLL.@)
*/
LPWSTR __cdecl NTDLL__wcslwr( LPWSTR str )
{
return strlwrW( str );
}
/*********************************************************************
* _wcsnicmp (NTDLL.@)
*/
INT __cdecl NTDLL__wcsnicmp( LPCWSTR str1, LPCWSTR str2, INT n )
{
return strncmpiW( str1, str2, n );
}
/*********************************************************************
* _wcsupr (NTDLL.@)
*/
LPWSTR __cdecl NTDLL__wcsupr( LPWSTR str )
{
return struprW( str );
}
/*********************************************************************
* towlower (NTDLL.@)
*/
WCHAR __cdecl NTDLL_towlower( WCHAR ch )
{
return tolowerW(ch);
}
/*********************************************************************
* towupper (NTDLL.@)
*/
WCHAR __cdecl NTDLL_towupper( WCHAR ch )
{
return toupperW(ch);
}
/***********************************************************************
* wcscat (NTDLL.@)
*/
LPWSTR __cdecl NTDLL_wcscat( LPWSTR dst, LPCWSTR src )
{
return strcatW( dst, src );
}
/*********************************************************************
* wcschr (NTDLL.@)
*/
LPWSTR __cdecl NTDLL_wcschr( LPCWSTR str, WCHAR ch )
{
return strchrW( str, ch );
}
/*********************************************************************
* wcscmp (NTDLL.@)
*/
INT __cdecl NTDLL_wcscmp( LPCWSTR str1, LPCWSTR str2 )
{
return strcmpW( str1, str2 );
}
/***********************************************************************
* wcscpy (NTDLL.@)
*/
LPWSTR __cdecl NTDLL_wcscpy( LPWSTR dst, LPCWSTR src )
{
return strcpyW( dst, src );
}
/*********************************************************************
* wcscspn (NTDLL.@)
*/
INT __cdecl NTDLL_wcscspn( LPCWSTR str, LPCWSTR reject )
{
return strcspnW( str, reject );
}
/***********************************************************************
* wcslen (NTDLL.@)
*/
INT __cdecl NTDLL_wcslen( LPCWSTR str )
{
return strlenW( str );
}
/*********************************************************************
* wcsncat (NTDLL.@)
*/
LPWSTR __cdecl NTDLL_wcsncat( LPWSTR s1, LPCWSTR s2, INT n )
{
LPWSTR ret = s1;
while (*s1) s1++;
while (n-- > 0) if (!(*s1++ = *s2++)) return ret;
*s1 = 0;
return ret;
}
/*********************************************************************
* wcsncmp (NTDLL.@)
*/
INT __cdecl NTDLL_wcsncmp( LPCWSTR str1, LPCWSTR str2, INT n )
{
return strncmpW( str1, str2, n );
}
/*********************************************************************
* wcsncpy (NTDLL.@)
*/
LPWSTR __cdecl NTDLL_wcsncpy( LPWSTR s1, LPCWSTR s2, INT n )
{
WCHAR *ret = s1;
while (n-- > 0) if (!(*s1++ = *s2++)) break;
while (n-- > 0) *s1++ = 0;
return ret;
}
/*********************************************************************
* wcspbrk (NTDLL.@)
*/
LPWSTR __cdecl NTDLL_wcspbrk( LPCWSTR str, LPCWSTR accept )
{
return strpbrkW( str, accept );
}
/*********************************************************************
* wcsrchr (NTDLL.@)
*/
LPWSTR __cdecl NTDLL_wcsrchr( LPWSTR str, WCHAR ch )
{
return strrchrW( str, ch );
}
/*********************************************************************
* wcsspn (NTDLL.@)
*/
INT __cdecl NTDLL_wcsspn( LPCWSTR str, LPCWSTR accept )
{
return strspnW( str, accept );
}
/*********************************************************************
* wcsstr (NTDLL.@)
*/
LPWSTR __cdecl NTDLL_wcsstr( LPCWSTR str, LPCWSTR sub )
{
return strstrW( str, sub );
}
/*********************************************************************
* wcstok (NTDLL.@)
*/
LPWSTR __cdecl NTDLL_wcstok( LPWSTR str, LPCWSTR delim )
{
static LPWSTR next = NULL;
LPWSTR ret;
if (!str)
if (!(str = next)) return NULL;
while (*str && NTDLL_wcschr( delim, *str )) str++;
if (!*str) return NULL;
ret = str++;
while (*str && !NTDLL_wcschr( delim, *str )) str++;
if (*str) *str++ = 0;
next = str;
return ret;
}
/*********************************************************************
* wcstombs (NTDLL.@)
*/
INT __cdecl NTDLL_wcstombs( LPSTR dst, LPCWSTR src, INT n )
{
DWORD len;
if (!dst)
{
RtlUnicodeToMultiByteSize( &len, src, strlenW(src)*sizeof(WCHAR) );
return len;
}
else
{
if (n <= 0) return 0;
RtlUnicodeToMultiByteN( dst, n, &len, src, strlenW(src)*sizeof(WCHAR) );
if (len < n) dst[len] = 0;
}
return len;
}
/*********************************************************************
* mbstowcs (NTDLL.@)
*/
INT __cdecl NTDLL_mbstowcs( LPWSTR dst, LPCSTR src, INT n )
{
DWORD len;
if (!dst)
{
RtlMultiByteToUnicodeSize( &len, src, strlen(src) );
}
else
{
if (n <= 0) return 0;
RtlMultiByteToUnicodeN( dst, n*sizeof(WCHAR), &len, src, strlen(src) );
if (len / sizeof(WCHAR) < n) dst[len / sizeof(WCHAR)] = 0;
}
return len / sizeof(WCHAR);
}
/*********************************************************************
* wcstol (NTDLL.@)
*/
LONG __cdecl NTDLL_wcstol(LPCWSTR s, LPWSTR *end, INT base)
{
return strtolW( s, end, base );
}
/*********************************************************************
* wcstoul (NTDLL.@)
*/
ULONG __cdecl NTDLL_wcstoul(LPCWSTR s, LPWSTR *end, INT base)
{
return strtoulW( s, end, base );
}
/*********************************************************************
* iswctype (NTDLL.@)
*/
INT __cdecl NTDLL_iswctype( WCHAR wc, WCHAR wct )
{
return (get_char_typeW(wc) & 0xfff) & wct;
}
/*********************************************************************
* iswalpha (NTDLL.@)
*
* Checks if a unicode char wc is a letter
*
* RETURNS
* TRUE: The unicode char wc is a letter.
* FALSE: Otherwise
*/
INT __cdecl NTDLL_iswalpha( WCHAR wc )
{
return isalphaW(wc);
}
/*********************************************************************
* iswdigit (NTDLL.@)
*
* Checks if a unicode char wc is a digit
*
* RETURNS
* TRUE: The unicode char wc is a digit.
* FALSE: Otherwise
*/
INT __cdecl NTDLL_iswdigit( WCHAR wc )
{
return isdigitW(wc);
}
/*********************************************************************
* iswlower (NTDLL.@)
*
* Checks if a unicode char wc is a lower case letter
*
* RETURNS
* TRUE: The unicode char wc is a lower case letter.
* FALSE: Otherwise
*/
INT __cdecl NTDLL_iswlower( WCHAR wc )
{
return islowerW(wc);
}
/*********************************************************************
* iswspace (NTDLL.@)
*
* Checks if a unicode char wc is a white space character
*
* RETURNS
* TRUE: The unicode char wc is a white space character.
* FALSE: Otherwise
*/
INT __cdecl NTDLL_iswspace( WCHAR wc )
{
return isspaceW(wc);
}
/*********************************************************************
* iswxdigit (NTDLL.@)
*
* Checks if a unicode char wc is an extended digit
*
* RETURNS
* TRUE: The unicode char wc is an extended digit.
* FALSE: Otherwise
*/
INT __cdecl NTDLL_iswxdigit( WCHAR wc )
{
return isxdigitW(wc);
}
/*********************************************************************
* _ultow (NTDLL.@)
*
* Converts an unsigned long integer to a unicode string.
*
* RETURNS
* Always returns str.
*
* NOTES
* Converts value to a '\0' terminated wstring which is copied to str.
* The maximum length of the copied str is 33 bytes.
* Does not check if radix is in the range of 2 to 36.
* If str is NULL it just returns NULL.
*/
LPWSTR __cdecl _ultow(
ULONG value, /* [I] Value to be converted */
LPWSTR str, /* [O] Destination for the converted value */
INT radix) /* [I] Number base for conversion */
{
WCHAR buffer[33];
PWCHAR pos;
WCHAR digit;
pos = &buffer[32];
*pos = '\0';
do {
digit = value % radix;
value = value / radix;
if (digit < 10) {
*--pos = '0' + digit;
} else {
*--pos = 'a' + digit - 10;
} /* if */
} while (value != 0L);
if (str != NULL) {
memcpy(str, pos, (&buffer[32] - pos + 1) * sizeof(WCHAR));
} /* if */
return str;
}
/*********************************************************************
* _ltow (NTDLL.@)
*
* Converts a long integer to a unicode string.
*
* RETURNS
* Always returns str.
*
* NOTES
* Converts value to a '\0' terminated wstring which is copied to str.
* The maximum length of the copied str is 33 bytes. If radix
* is 10 and value is negative, the value is converted with sign.
* Does not check if radix is in the range of 2 to 36.
* If str is NULL it just returns NULL.
*/
LPWSTR __cdecl _ltow(
LONG value, /* [I] Value to be converted */
LPWSTR str, /* [O] Destination for the converted value */
INT radix) /* [I] Number base for conversion */
{
ULONG val;
int negative;
WCHAR buffer[33];
PWCHAR pos;
WCHAR digit;
if (value < 0 && radix == 10) {
negative = 1;
val = -value;
} else {
negative = 0;
val = value;
} /* if */
pos = &buffer[32];
*pos = '\0';
do {
digit = val % radix;
val = val / radix;
if (digit < 10) {
*--pos = '0' + digit;
} else {
*--pos = 'a' + digit - 10;
} /* if */
} while (val != 0L);
if (negative) {
*--pos = '-';
} /* if */
if (str != NULL) {
memcpy(str, pos, (&buffer[32] - pos + 1) * sizeof(WCHAR));
} /* if */
return str;
}
/*********************************************************************
* _itow (NTDLL.@)
*
* Converts an integer to a unicode string.
*
* RETURNS
* Always returns str.
*
* NOTES
* Converts value to a '\0' terminated wstring which is copied to str.
* The maximum length of the copied str is 33 bytes. If radix
* is 10 and value is negative, the value is converted with sign.
* Does not check if radix is in the range of 2 to 36.
* If str is NULL it just returns NULL.
*
* DIFFERENCES
* - The native function crashes when the string is longer than 19 chars.
* This function does not have this bug.
*/
LPWSTR __cdecl _itow(
int value, /* [I] Value to be converted */
LPWSTR str, /* [O] Destination for the converted value */
INT radix) /* [I] Number base for conversion */
{
return _ltow(value, str, radix);
}
/*********************************************************************
* _ui64tow (NTDLL.@)
*
* Converts a large unsigned integer to a unicode string.
*
* RETURNS
* Always returns str.
*
* NOTES
* Converts value to a '\0' terminated wstring which is copied to str.
* The maximum length of the copied str is 33 bytes.
* Does not check if radix is in the range of 2 to 36.
* If str is NULL it just returns NULL.
*
* DIFFERENCES
* - This function does not exist in the native DLL (but in msvcrt).
* But since the maintenance of all these functions is better done
* in one place we implement it here.
*/
LPWSTR __cdecl _ui64tow(
ULONGLONG value, /* [I] Value to be converted */
LPWSTR str, /* [O] Destination for the converted value */
INT radix) /* [I] Number base for conversion */
{
WCHAR buffer[65];
PWCHAR pos;
WCHAR digit;
pos = &buffer[64];
*pos = '\0';
do {
digit = value % radix;
value = value / radix;
if (digit < 10) {
*--pos = '0' + digit;
} else {
*--pos = 'a' + digit - 10;
} /* if */
} while (value != 0L);
if (str != NULL) {
memcpy(str, pos, (&buffer[64] - pos + 1) * sizeof(WCHAR));
} /* if */
return str;
}
/*********************************************************************
* _i64tow (NTDLL.@)
*
* Converts a large integer to a unicode string.
*
* RETURNS
* Always returns str.
*
* NOTES
* Converts value to a '\0' terminated wstring which is copied to str.
* The maximum length of the copied str is 33 bytes. If radix
* is 10 and value is negative, the value is converted with sign.
* Does not check if radix is in the range of 2 to 36.
* If str is NULL it just returns NULL.
*
* DIFFERENCES
* - The native DLL converts negative values (for base 10) wrong:
* -1 is converted to -18446744073709551615
* -2 is converted to -18446744073709551614
* -9223372036854775807 is converted to -9223372036854775809
* -9223372036854775808 is converted to -9223372036854775808
* The native msvcrt _i64tow function and our ntdll function do
* not have this bug.
*/
LPWSTR __cdecl _i64tow(
LONGLONG value, /* [I] Value to be converted */
LPWSTR str, /* [O] Destination for the converted value */
INT radix) /* [I] Number base for conversion */
{
ULONGLONG val;
int negative;
WCHAR buffer[65];
PWCHAR pos;
WCHAR digit;
if (value < 0 && radix == 10) {
negative = 1;
val = -value;
} else {
negative = 0;
val = value;
} /* if */
pos = &buffer[64];
*pos = '\0';
do {
digit = val % radix;
val = val / radix;
if (digit < 10) {
*--pos = '0' + digit;
} else {
*--pos = 'a' + digit - 10;
} /* if */
} while (val != 0L);
if (negative) {
*--pos = '-';
} /* if */
if (str != NULL) {
memcpy(str, pos, (&buffer[64] - pos + 1) * sizeof(WCHAR));
} /* if */
return str;
}
/*********************************************************************
* _wtol (NTDLL.@)
*
* Converts a unicode string to a long integer.
*
* PARAMS
* str [I] Wstring to be converted
*
* RETURNS
* On success it returns the integer value otherwise it returns 0.
*
* NOTES
* Accepts: {whitespace} [+|-] {digits}
* No check is made for value overflow, only the lower 32 bits are assigned.
* If str is NULL it crashes, as the native function does.
*/
LONG __cdecl _wtol( LPCWSTR str )
{
ULONG RunningTotal = 0;
char bMinus = 0;
while (isspaceW(*str)) {
str++;
} /* while */
if (*str == '+') {
str++;
} else if (*str == '-') {
bMinus = 1;
str++;
} /* if */
while (*str >= '0' && *str <= '9') {
RunningTotal = RunningTotal * 10 + *str - '0';
str++;
} /* while */
return bMinus ? -RunningTotal : RunningTotal;
}
/*********************************************************************
* _wtoi (NTDLL.@)
*
* Converts a unicode string to an integer.
*
* PARAMS
* str [I] Wstring to be converted
*
* RETURNS
* On success it returns the integer value otherwise it returns 0.
*
* NOTES
* Accepts: {whitespace} [+|-] {digits}
* No check is made for value overflow, only the lower 32 bits are assigned.
* If str is NULL it crashes, as the native function does.
*/
int __cdecl _wtoi( LPCWSTR str )
{
return _wtol(str);
}
/*********************************************************************
* _wtoi64 (NTDLL.@)
*
* Converts a unicode string to a large integer.
*
* PARAMS
* str [I] Wstring to be converted
*
* RETURNS
* On success it returns the integer value otherwise it returns 0.
*
* NOTES
* Accepts: {whitespace} [+|-] {digits}
* No check is made for value overflow, only the lower 64 bits are assigned.
* If str is NULL it crashes, as the native function does.
*/
LONGLONG __cdecl _wtoi64( LPCWSTR str )
{
ULONGLONG RunningTotal = 0;
char bMinus = 0;
while (isspaceW(*str)) {
str++;
} /* while */
if (*str == '+') {
str++;
} else if (*str == '-') {
bMinus = 1;
str++;
} /* if */
while (*str >= '0' && *str <= '9') {
RunningTotal = RunningTotal * 10 + *str - '0';
str++;
} /* while */
return bMinus ? -RunningTotal : RunningTotal;
}
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