I was was a little bit too fast with my reply.
So "lowercaseString" method of NSString is not the way to go -
after reading the doc.
He probably meant to do something like (pseudo-code):
on IsLower(theString)
set res to false
set lower to call method [theString lowercaseString];
if (lower is equal to theString) then
set res to true
}
return res
end IsLower
