Part of the fish philosophy is "it's not in fish if it's somewhere else"
function regex_captures
perl -E '$str=shift; $re=shift; say for $str =~ /$re/' $argv
end
Then you can do something like this:
$ regex_captures foobar 'f(.+)b(.+)' | while read match; set matches
$matches $match; end
$ count $matches
2
$ for m in $matches; echo ">$m<"; end
>oo<
>ar<
On Thu, Oct 2, 2014 at 2:32 PM, Andrew Schulman <and...@utexas.edu> wrote:
> Hi. New fish user, and first post here.
>
> What's the recommended way to do regular expression testing and matching in
> fish? The test function doesn't support regexes. I could use expr, for
> example:
>
> if expr $var : 'a(.)b(.)'
> then
> # do something with the match
> end
>
> but that's awkward, because expr will only output the result of one match,
> it sends the result to stdout, and the exit status isn't necessarily 0 on
> success - it depends on the regex.
>
> What I'd like is to have is a function or operator whose exit status tells
> me whether the regex matched, and that returns an array of the matched
> results from ()... kind of like how (sorry) bash does it.
>
> Any suggestions?
>
> Thanks,
> Andrew.
>
>
>
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