int
x_strncasecmp(const char *s1, const char *s2, unsigned n)
{
while (n-- != 0) {
char c1 = x_toupper(*s1);
char c2 = x_toupper(*s2);
if (c1 != c2)
return 1;
if (c1 == 0)
break;
s1++, s2++;
}
return 0;
}
/*
* assume that b is alphabetic and allow plural
*/
static int
CompareWidths(const char *a, const char *b, int *modifier)
{
int result;
char ca, cb;
*modifier = 0;
if (!a || !b)
return 0;
for (;;) {
ca = x_toupper(*a);
cb = x_toupper(*b);
if (ca != cb || ca == '\0')
break; /* if not eq else both nul */
a++, b++;
}
if (cb != '\0')
return 0;
if (ca == 'S')
ca = *++a;
switch (ca) {
case '+':
case '-':
*modifier = (ca == '-' ? -1 : 1) * atoi(a + 1);
result = 1;
break;
case '\0':
result = 1;
break;
default:
result = 0;
break;
}
return result;
}