DIGITP

[JONL at MIT-MC (Jon L White)]

    Date: 22 September 1980 16:21-EDT
    From: Kent M. Pitman <KMP at MIT-MC>
    Subject:  DIGITP
    I find (DIGITP #/q) => T extremely unaesthetic.  .  .  .
The previous comment on DIGITP wasn't just a call for votes on
aesthetics;  also, it wasn't addressed to NIL, but since you've 
replied to NIL, then this not also is going there.   It looks as 
if you are still confusing the (static) division of the alphabet 
with the (dynamic) action of the reader;  the major point that 
you've apparently missed is that a typical reader has to do something 
like the following piece of code anyhow (at least if its input radix 
is variable):
   (AND (SETQ VAL (DIGITP CHAR))
        (< VAL <input-radix>))