I've just noticed your new (fixed) script.
I like the new input syntax better than the old one.
I also like this syntax: /dev/hd[a:d][,1:8],
and broken ranges: [1:5,7:10].
Pity it still can't handle brackets embedded in each other,
such as /dev/[hd[a:d][1:8],fd[0:1]],
but that'd be difficult to implement properly.
(Also, this code prints a warning on empty input lines.
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