Howdy:

Here's an example:
I want to redefine 'pick so that pick series -1 gets the last element
pick series -2 gets the second to last etc...
If the source for my redefined 'pick is in a file, let's call it std.r
and we have the following code:

sys-pick: get in system/words 'pick

Now if 'sys-pick is in my code for the redefined 'pick and
I do %std.r a second time before closing the interpreter, I will
get a stack overflow because on the second 'do 'pick is already 
redefined.

The workaround for this is:

if not value? 'sys-pick[
        sys-pick: get in system/words 'pick
        ]
the works, but the gotcha is that if I'm working with a large application
that has somehow previous defined 'sys-pick errors could be introduced.

This scenario is not likely, especially if one sticks to a strict taxonomic 
convention of redefining system words as 'sys-word, but I'd welcome 
comments on this situation.
thanks
tim 
"Long live the mailing list :-)"
-- 
Tim Johnson <[EMAIL PROTECTED]>
Palmer, Alaska, USA
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