Re: cond*

[Richard Stallman]

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  > What about allowing a construct like ,((plist-get plist) property) that
  > will test for PROPERTY being in PLIST?

I do not understand what you mean by  ,((plist-get plist) property).
I am simply lost here.  I don't know which parts of that are supposed
to be fixed structure and which parts refer to things in the cond* call.

  > Or, better, allow VARIABLE to be in an arbitrary argument of PRED:

I understand that in the abstract.  I just don't see any syntax that
makes sense to use for it.

  > ,(PRED ARG1 ARG2 !VARIABLE ARG3 ...)

I don't understand this syntax.  `!' as no special meaning.
It cam't magically have a special meaning in a cpnd* pattern.
It would be part of the variable name.

This feature makes sense, and I've defined a syntax for it already:

   (constrain VARIABLE (PRED ARG1 ARG2 VARIABLE ARG3...))


-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)