public boolean regionMatches(boolean ignoreCase, int toffset,
String other, int ooffset, int len)
{
char[] ta = value;
int to = toffset;
char[] pa = other.value;
int po = ooffset;
// Note: toffset, ooffset, or len might be near -1>>>1.
if ((ooffset < 0) || (toffset < 0) ||
(toffset > (long)value.Length - len) ||
(ooffset > (long)other.value.Length - len))
{
return(false);
}
while (len-- > 0)
{
char c1 = ta[to++];
char c2 = pa[po++];
if (c1 == c2)
{
continue;
}
if (ignoreCase)
{
// If characters don't match but case may be ignored,
// try converting both characters to uppercase.
// If the results match, then the comparison scan should
// continue.
char u1 = Character.toUpperCase(c1);
char u2 = Character.toUpperCase(c2);
if (u1 == u2)
{
continue;
}
// Unfortunately, conversion to uppercase does not work properly
// for the Georgian alphabet, which has strange rules about case
// conversion. So we need to make one last check before
// exiting.
if (Character.toLowerCase(u1) == Character.toLowerCase(u2))
{
continue;
}
}
return(false);
}
return(true);
}
