434 lines
11 KiB
C
434 lines
11 KiB
C
/*
|
|
* Unicode string manipulation functions
|
|
*
|
|
* Copyright 2000 Alexandre Julliard
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
|
|
#include "wine/unicode.h"
|
|
|
|
int strcmpiW( const WCHAR *str1, const WCHAR *str2 )
|
|
{
|
|
for (;;)
|
|
{
|
|
int ret = toupperW(*str1) - toupperW(*str2);
|
|
if (ret || !*str1) return ret;
|
|
str1++;
|
|
str2++;
|
|
}
|
|
}
|
|
|
|
int strncmpiW( const WCHAR *str1, const WCHAR *str2, int n )
|
|
{
|
|
int ret = 0;
|
|
for ( ; n > 0; n--, str1++, str2++)
|
|
if ((ret = toupperW(*str1) - toupperW(*str2)) || !*str1) break;
|
|
return ret;
|
|
}
|
|
|
|
WCHAR *strstrW( const WCHAR *str, const WCHAR *sub )
|
|
{
|
|
while (*str)
|
|
{
|
|
const WCHAR *p1 = str, *p2 = sub;
|
|
while (*p1 && *p2 && *p1 == *p2) { p1++; p2++; }
|
|
if (!*p2) return (WCHAR *)str;
|
|
str++;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* strtolW and strtoulW implementation based on the GNU C library code */
|
|
/* Copyright (C) 1991,92,94,95,96,97,98,99,2000,2001 Free Software Foundation, Inc. */
|
|
|
|
long int strtolW( const WCHAR *nptr, WCHAR **endptr, int base )
|
|
{
|
|
int negative;
|
|
register unsigned long int cutoff;
|
|
register unsigned int cutlim;
|
|
register unsigned long int i;
|
|
register const WCHAR *s;
|
|
register WCHAR c;
|
|
const WCHAR *save, *end;
|
|
int overflow;
|
|
|
|
if (base < 0 || base == 1 || base > 36) return 0;
|
|
|
|
save = s = nptr;
|
|
|
|
/* Skip white space. */
|
|
while (isspaceW (*s))
|
|
++s;
|
|
if (!*s) goto noconv;
|
|
|
|
/* Check for a sign. */
|
|
negative = 0;
|
|
if (*s == '-')
|
|
{
|
|
negative = 1;
|
|
++s;
|
|
}
|
|
else if (*s == '+')
|
|
++s;
|
|
|
|
/* Recognize number prefix and if BASE is zero, figure it out ourselves. */
|
|
if (*s == '0')
|
|
{
|
|
if ((base == 0 || base == 16) && toupperW(s[1]) == 'X')
|
|
{
|
|
s += 2;
|
|
base = 16;
|
|
}
|
|
else if (base == 0)
|
|
base = 8;
|
|
}
|
|
else if (base == 0)
|
|
base = 10;
|
|
|
|
/* Save the pointer so we can check later if anything happened. */
|
|
save = s;
|
|
end = NULL;
|
|
|
|
cutoff = ULONG_MAX / (unsigned long int) base;
|
|
cutlim = ULONG_MAX % (unsigned long int) base;
|
|
|
|
overflow = 0;
|
|
i = 0;
|
|
c = *s;
|
|
for (;c != '\0'; c = *++s)
|
|
{
|
|
if (s == end)
|
|
break;
|
|
if (c >= '0' && c <= '9')
|
|
c -= '0';
|
|
else if (isalphaW (c))
|
|
c = toupperW (c) - 'A' + 10;
|
|
else
|
|
break;
|
|
if ((int) c >= base)
|
|
break;
|
|
/* Check for overflow. */
|
|
if (i > cutoff || (i == cutoff && c > cutlim))
|
|
overflow = 1;
|
|
else
|
|
{
|
|
i *= (unsigned long int) base;
|
|
i += c;
|
|
}
|
|
}
|
|
|
|
/* Check if anything actually happened. */
|
|
if (s == save)
|
|
goto noconv;
|
|
|
|
/* Store in ENDPTR the address of one character
|
|
past the last character we converted. */
|
|
if (endptr != NULL)
|
|
*endptr = (WCHAR *)s;
|
|
|
|
/* Check for a value that is within the range of
|
|
`unsigned LONG int', but outside the range of `LONG int'. */
|
|
if (overflow == 0
|
|
&& i > (negative
|
|
? -((unsigned long int) (LONG_MIN + 1)) + 1
|
|
: (unsigned long int) LONG_MAX))
|
|
overflow = 1;
|
|
|
|
if (overflow)
|
|
{
|
|
return negative ? LONG_MIN : LONG_MAX;
|
|
}
|
|
|
|
/* Return the result of the appropriate sign. */
|
|
return negative ? -i : i;
|
|
|
|
noconv:
|
|
/* We must handle a special case here: the base is 0 or 16 and the
|
|
first two characters are '0' and 'x', but the rest are no
|
|
hexadecimal digits. This is no error case. We return 0 and
|
|
ENDPTR points to the `x`. */
|
|
if (endptr != NULL)
|
|
{
|
|
if (save - nptr >= 2 && toupperW (save[-1]) == 'X'
|
|
&& save[-2] == '0')
|
|
*endptr = (WCHAR *)&save[-1];
|
|
else
|
|
/* There was no number to convert. */
|
|
*endptr = (WCHAR *)nptr;
|
|
}
|
|
|
|
return 0L;
|
|
}
|
|
|
|
|
|
unsigned long int strtoulW( const WCHAR *nptr, WCHAR **endptr, int base )
|
|
{
|
|
int negative;
|
|
register unsigned long int cutoff;
|
|
register unsigned int cutlim;
|
|
register unsigned long int i;
|
|
register const WCHAR *s;
|
|
register WCHAR c;
|
|
const WCHAR *save, *end;
|
|
int overflow;
|
|
|
|
if (base < 0 || base == 1 || base > 36) return 0;
|
|
|
|
save = s = nptr;
|
|
|
|
/* Skip white space. */
|
|
while (isspaceW (*s))
|
|
++s;
|
|
if (!*s) goto noconv;
|
|
|
|
/* Check for a sign. */
|
|
negative = 0;
|
|
if (*s == '-')
|
|
{
|
|
negative = 1;
|
|
++s;
|
|
}
|
|
else if (*s == '+')
|
|
++s;
|
|
|
|
/* Recognize number prefix and if BASE is zero, figure it out ourselves. */
|
|
if (*s == '0')
|
|
{
|
|
if ((base == 0 || base == 16) && toupperW(s[1]) == 'X')
|
|
{
|
|
s += 2;
|
|
base = 16;
|
|
}
|
|
else if (base == 0)
|
|
base = 8;
|
|
}
|
|
else if (base == 0)
|
|
base = 10;
|
|
|
|
/* Save the pointer so we can check later if anything happened. */
|
|
save = s;
|
|
end = NULL;
|
|
|
|
cutoff = ULONG_MAX / (unsigned long int) base;
|
|
cutlim = ULONG_MAX % (unsigned long int) base;
|
|
|
|
overflow = 0;
|
|
i = 0;
|
|
c = *s;
|
|
for (;c != '\0'; c = *++s)
|
|
{
|
|
if (s == end)
|
|
break;
|
|
if (c >= '0' && c <= '9')
|
|
c -= '0';
|
|
else if (isalphaW (c))
|
|
c = toupperW (c) - 'A' + 10;
|
|
else
|
|
break;
|
|
if ((int) c >= base)
|
|
break;
|
|
/* Check for overflow. */
|
|
if (i > cutoff || (i == cutoff && c > cutlim))
|
|
overflow = 1;
|
|
else
|
|
{
|
|
i *= (unsigned long int) base;
|
|
i += c;
|
|
}
|
|
}
|
|
|
|
/* Check if anything actually happened. */
|
|
if (s == save)
|
|
goto noconv;
|
|
|
|
/* Store in ENDPTR the address of one character
|
|
past the last character we converted. */
|
|
if (endptr != NULL)
|
|
*endptr = (WCHAR *)s;
|
|
|
|
if (overflow)
|
|
{
|
|
return ULONG_MAX;
|
|
}
|
|
|
|
/* Return the result of the appropriate sign. */
|
|
return negative ? -i : i;
|
|
|
|
noconv:
|
|
/* We must handle a special case here: the base is 0 or 16 and the
|
|
first two characters are '0' and 'x', but the rest are no
|
|
hexadecimal digits. This is no error case. We return 0 and
|
|
ENDPTR points to the `x`. */
|
|
if (endptr != NULL)
|
|
{
|
|
if (save - nptr >= 2 && toupperW (save[-1]) == 'X'
|
|
&& save[-2] == '0')
|
|
*endptr = (WCHAR *)&save[-1];
|
|
else
|
|
/* There was no number to convert. */
|
|
*endptr = (WCHAR *)nptr;
|
|
}
|
|
|
|
return 0L;
|
|
}
|
|
|
|
|
|
int vsnprintfW(WCHAR *str, size_t len, const WCHAR *format, va_list valist)
|
|
{
|
|
unsigned int written = 0;
|
|
const WCHAR *iter = format;
|
|
char bufa[256], fmtbufa[64], *fmta;
|
|
|
|
while (*iter)
|
|
{
|
|
while (*iter && *iter != '%')
|
|
{
|
|
if (written++ >= len)
|
|
return -1;
|
|
*str++ = *iter++;
|
|
}
|
|
if (*iter == '%')
|
|
{
|
|
fmta = fmtbufa;
|
|
*fmta++ = *iter++;
|
|
while (*iter == '0' ||
|
|
*iter == '+' ||
|
|
*iter == '-' ||
|
|
*iter == ' ' ||
|
|
*iter == '0' ||
|
|
*iter == '*' ||
|
|
*iter == '#')
|
|
{
|
|
if (*iter == '*')
|
|
{
|
|
char *buffiter = bufa;
|
|
int fieldlen = va_arg(valist, int);
|
|
sprintf(buffiter, "%d", fieldlen);
|
|
while (*buffiter)
|
|
*fmta++ = *buffiter++;
|
|
}
|
|
else
|
|
*fmta++ = *iter;
|
|
iter++;
|
|
}
|
|
|
|
while (isdigit(*iter))
|
|
*fmta++ = *iter++;
|
|
|
|
if (*iter == '.')
|
|
{
|
|
*fmta++ = *iter++;
|
|
if (*iter == '*')
|
|
{
|
|
char *buffiter = bufa;
|
|
int fieldlen = va_arg(valist, int);
|
|
sprintf(buffiter, "%d", fieldlen);
|
|
while (*buffiter)
|
|
*fmta++ = *buffiter++;
|
|
}
|
|
else
|
|
while (isdigit(*iter))
|
|
*fmta++ = *iter++;
|
|
}
|
|
if (*iter == 'h' || *iter == 'l')
|
|
*fmta++ = *iter++;
|
|
|
|
switch (*iter)
|
|
{
|
|
case 's':
|
|
{
|
|
static const WCHAR none[] = { '(','n','u','l','l',')',0 };
|
|
const WCHAR *wstr = va_arg(valist, const WCHAR *);
|
|
const WCHAR *striter = wstr ? wstr : none;
|
|
while (*striter)
|
|
{
|
|
if (written++ >= len)
|
|
return -1;
|
|
*str++ = *striter++;
|
|
}
|
|
iter++;
|
|
break;
|
|
}
|
|
|
|
case 'c':
|
|
if (written++ >= len)
|
|
return -1;
|
|
*str++ = (WCHAR)va_arg(valist, int);
|
|
iter++;
|
|
break;
|
|
|
|
default:
|
|
{
|
|
/* For non wc types, use system sprintf and append to wide char output */
|
|
/* FIXME: for unrecognised types, should ignore % when printing */
|
|
char *bufaiter = bufa;
|
|
if (*iter == 'p')
|
|
sprintf(bufaiter, "%08lX", va_arg(valist, long));
|
|
else
|
|
{
|
|
*fmta++ = *iter;
|
|
*fmta = '\0';
|
|
if (*iter == 'f')
|
|
sprintf(bufaiter, fmtbufa, va_arg(valist, double));
|
|
else
|
|
sprintf(bufaiter, fmtbufa, va_arg(valist, void *));
|
|
}
|
|
while (*bufaiter)
|
|
{
|
|
if (written++ >= len)
|
|
return -1;
|
|
*str++ = *bufaiter++;
|
|
}
|
|
iter++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (written >= len)
|
|
return -1;
|
|
*str++ = 0;
|
|
return (int)written;
|
|
}
|
|
|
|
int vsprintfW( WCHAR *str, const WCHAR *format, va_list valist )
|
|
{
|
|
return vsnprintfW( str, INT_MAX, format, valist );
|
|
}
|
|
|
|
int snprintfW( WCHAR *str, size_t len, const WCHAR *format, ...)
|
|
{
|
|
int retval;
|
|
va_list valist;
|
|
va_start(valist, format);
|
|
retval = vsnprintfW(str, len, format, valist);
|
|
va_end(valist);
|
|
return retval;
|
|
}
|
|
|
|
int sprintfW( WCHAR *str, const WCHAR *format, ...)
|
|
{
|
|
int retval;
|
|
va_list valist;
|
|
va_start(valist, format);
|
|
retval = vsnprintfW(str, INT_MAX, format, valist);
|
|
va_end(valist);
|
|
return retval;
|
|
}
|