[texhax] Defining a command which runs differently based ion input argument

[Uwe Lueck]

"Philip Taylor (Webmaster, Ret'd)" <P.Taylor at Rhul.Ac.Uk>, 30.12.2010 13:39:19:
> Uwe Lueck wrote:
>> Active characters can allow tayloring syntax for special purposes.
>> It is difficult and can be very tedious to program, but without
>> category codes this possibility just doesn't exist.
>
> And as I can confidently state from a near lifetime's
> experience, "tayloring" syntax is at the very heart
> of creative programming.
>
> Philip TAYLOR

Active characters also allow tailoring syntax, 
while this doesn't look impressive to me. 
It may still be sufficient for many purposes, 
but I wonder if you, Phil, agree that it 
suffices for creative programming. 

Cheers, 

    Uwe.