[iterate-devel] defclause-driver with &sequence

[Olof-Joachim Frahm]

Venkatesan S <svtesan at gmail.com> writes:

> I want to use defclause-driver with the sequence keywords, I could not
> figure out how to get the values passed in from, to and other such
> clauses. Can anyone please provide some pointers? 

Hi, you were just a tiny step from the working solution:  With

>        (with ,myfrm = ,iterate::from)

, that is, using the qualified FROM from the iterate package, it works
just fine.  You can also see this, if you macroexpand your
IN-WHOLE-VECTOR definition:

> (EVAL-WHEN (:COMPILE-TOPLEVEL :LOAD-TOPLEVEL :EXECUTE)
>   (DEFMACRO CLAUSE-FOR-IN-WHOLE-VECTOR-5
>             (&KEY ((:FOR VAR)) ((:IN-WHOLE-VECTOR V)) ((:FROM ITERATE::FROM))
>              ((:UPFROM ITERATE::UPFROM)) ((:DOWNFROM ITERATE::DOWNFROM))
>              ((:TO ITERATE::TO)) ((:DOWNTO ITERATE::DOWNTO))
>              ((:ABOVE ITERATE::ABOVE)) ((:BELOW ITERATE::BELOW))
>              ((:BY ITERATE::BY) 1) ((:WITH-INDEX ITERATE::WITH-INDEX))
>              GENERATE)
>     "All the elements of a vector (disregards fill-pointer)"
> ...

Since all those extra symbols are not exported from the iterate package,
you've got to use them explicitely.

Hth and cheers,
Olof

-- 
The world is burning.  Run.