Stan Sieler <[log in to unmask]> writes:
>
> How about:
>
>     XL="FOO"   warns if not found
>     XL="-FOO"  quietly ignores if not found
>     XL="+FOO"  error if not found
>
> Thus, the following would be legal and would do what you'd expect:
>
>     XL="-FOO, FOO.PUB, +FOO.PUB.FUM"
>

I like the idea in principle, but you may want to use something other than
"+" and "-". The implication would be that a "+" might mean use the xl list
supplied and link time and this xl too. A minus might be thought of as use
the linked xl list except for this xl.

Perhaps some form of parenthetical parameters would be more intuitive,
although I honestly can't stand the format of ;SELEQ (who's idea was it to
introduce square brackets into MPE commands anyway?)

Thoughts?

Doug.

Doug Werth                             Beechglen Development Inc.
[log in to unmask]                               Cincinnati, Ohio