I like the third function . . .. but I'd do a -d $x, since it should be a
directory :)
-Dave
On Fri, Apr 2, 2010 at 7:15 PM, Philip Ganchev <[email protected]>wrote:
> On Thu, Apr 1, 2010 at 9:46 AM, David Frascone <[email protected]> wrote:
> >
> > There's a really cool feature in zsh that allows you to uniquely add a
> > string to the path, if it did not exist before:
> >
> > typeset -U path
> >
> > This makes all items in path have to be unique, so then, if you do:
> >
> > path=(/foo/bin $path)
> > path=(/foot/bin $path)
> >
> > You will NOT have two /foo/bin(s) in your path.
> >
> > Is there an equivalent way to do this in fish?
>
> Not that I know of. Fish is designed to have a minimal set of builtins
> that are as orthogonal as possible. But it might be useful to define a
> function like:
>
> function varuniq --description "Return the unique arguments, merging
> to the first occurrence of a word."
> for x in $argv;
> if not contains $x $ret
> set ret $ret $y
> end
> end
> end
>
> Then use it like this:
>
> set PATH (varuniq $PATH /home/joe/bin home/joe/src)
>
>
> Or define:
>
> function typeset
> set rest argv[(seq 2 (count $argv))]
> set $argv[1] (varuniq $argv[1] $rest)
> end
>
>
> Or even:
>
> function path
> for x in argv
> if test -f $x and not contains $PATH $x
> set PATH $PATH $x
> end
> end
> end
>
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