Don Guinn wrote:
> (2 2$;:'abc de fg h'),;2#<,:;:'ww xxxx'
> (2 2$;:'abc de fg h'),;1#<,:;:'ww xxxx'
> (2 2$;:'abc de fg h'),;0#<,:;:'ww xxxx'
>Why is there a third item which is empty in the last case? Am I
>misunderstanding something about append?
Take a look at the shapes of your three right sides, i.e.
;2#<,:;:'ww xxxx'
;1#<,:;:'ww xxxx'
;0#<,:;:'ww xxxx'
and compare this with the (much simpler) right sides
2 # ,: ;: 'ww xxxx'
1 # ,: ;: 'ww xxxx'
0 # ,: ;: 'ww xxxx'
which all append nicely.
Returning to your original problem: I consider the design of
1!:0 to be botched. I'd prefer it to return an empty 0 6 matrix
in the case of non-matches. Also, it should work on the
root directory as it does on any other directory. I always
have to code around these special cases. (The standard
'dir' wrapper doesn't extend nicely to empty matches, either.)
Martin
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