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Groups > gnu.bash.bug > #14992
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| From | Chet Ramey <chet.ramey@case.edu> |
| Newsgroups | gnu.bash.bug |
| Subject | Re: Should [[ -v 1 ]] be supported? |
| Date | Fri, 28 Dec 2018 18:19:01 -0600 |
| Organization | ITS, Case Western Reserve University |
| Lines | 15 |
| Approved | bug-bash@gnu.org |
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| To | Martijn Dekker <martijn@inlv.org>, bug-bash@gnu.org |
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On 12/27/18 3:11 PM, Martijn Dekker wrote:
> Consistency might be a better argument. If [[ -v foo ]] is equivalent to [[
> -n ${foo+s} ]] for variables (with the advantage that you don't need 'eval'
> to handle arbitrary values of 'foo'), then perhaps it's not unreasonable to
> expect [[ -v 1 ]] to be equivalent to [[ -n ${1+s} ]].
The completeness argument is more rigorous, and there's a case to add this
in a future version of bash. He didn't make that argument, though.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/
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Re: Should [[ -v 1 ]] be supported? Chet Ramey <chet.ramey@case.edu> - 2018-12-28 18:19 -0600
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