Re: RFE: brace expansion sequences should do zero padding

[Eric Blake]

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According to Martin von Gagern on 9/3/2007 2:16 PM:
> 
> Another thing worth mentioning is negative numbers. My padding pads all
> numbers to a common width, not a common number of digits. This is what
> printf does, and it's a wee little bit easier to implement. However it
> could be changed to common number of digits as well. On IRC I got the
> idea that {-07..003} should do common width, whereas {-007..003} should
> do common number of digits. This, however, would add a lot of code. I
> think negative numbers are so rare that they are not worth the effort.
> Do you agree?

Perhaps rather than trying to improve bash {} expansion, you could use
coreutils seq instead.  For example,

$ seq -f 'a/%03g' -007 003
a/-07
a/-06
a/-05
a/-04
a/-03
a/-02
a/-01
a/000
a/001
a/002
a/003

- --
Don't work too hard, make some time for fun as well!

Eric Blake             ebb9@byu.net
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