>> > 
>> > Leon, I see that you have been running into the vltc 
>> problem ;-)  I just run
>> > a flex -p, and went to line 314.
>> 
>> I got it. It is done to prevent minus from sticking to number in
>> expressions like 'a -2'. Dirty, but it works.
Dirty, but it also breaks the scanner.
MikeA