From: matthew@...
Date: 2016-01-18T23:32:55+00:00
Subject: [ruby-core:72910] [Ruby trunk - Feature #11999] MatchData#to_h to get a Hash from named captures

Issue #11999 has been updated by Matthew Kerwin.


Shota Fukumori wrote:
> >  is not always able to convert to Hash/Map.
> 
> Ah -- agreed. How about MatchData#named_captures?
> 
> I can't think this name is the best, suggestions welcome.

I think #named_captures is the best name, since that is precisely what it returns (i.e. it never includes numbered captures.)

----------------------------------------
Feature #11999: MatchData#to_h to get a Hash from named captures
https://bugs.ruby-lang.org/issues/11999#change-56139

* Author: Shota Fukumori
* Status: Open
* Priority: Normal
* Assignee: 
----------------------------------------
~~~
class MatchData
  def to_h
    self.names.map { |n| [n, self[n]] }.to_h
  end
end

p '12'.match(/(?<a>.)(?<b>.)(?<c>.)?/).to_h #=> {"a"=>"1", "b"=>"2", "c"=>nil}
~~~

Sometimes I want to get a Hash from named capture, but currently I have to use #names + #captures. How about adding MatchData#to_h for convenience way?



---Files--------------------------------
11999.diff (2.77 KB)


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