tokenizer / parser declarations (?)

• Subject: tokenizer / parser declarations (?)
• From: Robert Dodier
• Date: Tue, 18 Sep 2007 20:52:36 -0600

On 9/18/07, Barton Willis <willisb at unk.edu> wrote:

> (defprop %blip simp-blip operators)
>
> (defun simp-blip (e yy z)
>   (declare (ignore yy))
>   (oneargcheck e)
>   (setq e (simplifya (specrepcheck (second e)) z))
>   (if (zerop1 e) 1 `((%blip simp) ,e)))

> If I'm more or less correct about all this, how do I get Maxima
> to read blip(x) as ((%blip) $x) instead of (($blip $x) ?

Maybe it is the ALIAS property that's the key here; the trig verbs
seem to have it. With the above stuff + (setf (get '$blip 'alias) '%blip)
I get this:

blip(0);
 => 1
'blip(0);
 => 1

tellsimp (blip (x), FOO);
 => [bliprule1, simp-blip]
blip(x);
 => FOO
'blip(x);
 => FOO

:lisp (mread *standard-input*)
 => ((DISPLAYINPUT) NIL ((%BLIP) $X))
(after entering "blip(x)")

HTH

Robert

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