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Re: alias hygiene
On 2018-02-17 15:30:45 +0000, Daniel Shahaf wrote:
> Ray Andrews wrote on Sat, 17 Feb 2018 07:20 -0800:
> > Thanks. There's a lot of homework in your post, I'll get on it. For now
> > I take it that one can legitimately have an alias definition conditional
> > on some test, at least in theory,
>
> Yes. Example:
>
> case $OSNAME in
> (linux*) alias ls='ls --color';;
> (freebsd*) alias ls='ls -G';;
> esac
And I even have an alias generator that can redefine existing aliases:
use-pager()
{
local -a cmd
cmd=(pager-wrapper)
while [[ $1 == -* ]]
do
cmd+=${(q)1}
shift
done
local i
for i in $@
do
whence $i > /dev/null &&
alias $i="$cmd ${(Q)"${$(alias $i)#*=}":-$i}"
done
}
I hope that's correct.
The goal is to alias commands to use a pager when possible
(the pager-wrapper function uses a pager only when the output
is sent to a terminal).
--
Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
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