David Kastrup <dak@xxxxxxx> writes:
> Sure. What about the git-rebase line using $(($end - $msgnum)) ?
> That's even more risque than ##.
Is it really risque? I do not think we have heard trouble with
the arith expansion from anybody. A few mistakes in the past
made that said things like:
$((end - 1)) ;# wrong... say "$end" if you mean variable
$((cd ...; pwd)) ;# wrong... say $( (...)) if command substitution
# that involves subshell
but I think we fixed them.
> Understood. But using ${...#...} and ${...:+...} does not exactly
> seem to be news in the git code base. Even though we have the claim
> that Solaris' sh won't deal with the former.
I do not think we have trouble with ${parameter#word}. Much
less with ${parameter+word}; it has been in /bin/sh forever.
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