[ruby-core:54937] [ruby-trunk - Feature #8396] Allow easier destructuring of MatchData

Issue #8396 has been updated by goshakkk (Gosha Arinich).


=begin
Yep, the (({*@})) is a nice idea. Would be awesome if it could be used for splat-less destructuring as well. @matz what do you think about this?
=end

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Feature #8396: Allow easier destructuring of MatchData
https://bugs.ruby-lang.org/issues/8396#change-39280

Author: goshakkk (Gosha Arinich)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 


=begin

((*(I have opened ((<"a PR for this on GH @ rails/rails"|URL:https://github.com/ruby/ruby/pull/300>)) for this but @marcandre closed it and suggested I submit it here. I'll copy my proposal text here.)*))

Currently, you can get something out of (({MatchData})) like this:

 m = "2_apples".match /(\d+)_(apple|orange)s?/
 count, thing = m[1], m[2]
 # or
 _, count, thing = "2_apples".match(/(\d+)_(apple|orange)s?/).to_a
 # or
 count, thing = "2_apples".match(/(\d+)_(apple|orange)s?/).captures
 # or, as @marcandre suggested, you can use splat operator
 _, count, thing = * "2_apples".match /(\d+)_(apple|orange)s?/

However, this extra (({#to_a})) or (({#captures})) (or splat) that you have to add makes things slightly more verbose.

With this PR, it would be possible to do the following:

 count, thing = "2_apples".match /(\d+)_(apple|orange)s?/

Which looks a bit cleaner and nicer. So what do you think?

=end


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