From: "duerst (Martin Dürst)" <duerst@...>
Date: 2012-03-25T16:03:28+09:00
Subject: [ruby-core:43629] [ruby-trunk - Feature #4786][Rejected] RCR new Feature: Numeric#grouped


Issue #4786 has been updated by duerst (Martin D��rst).

Status changed from Assigned to Rejected

naruse (Yui NARUSE) wrote:
> Ruby doesn't include Locale depended features on current policy.
> So it should be done by ICU or ActiveSupport or something.

We have looked at this issue today at our Ruby developer meeting in Akihabara, and we agree with Yui. We have therefore rejected this issue.

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Feature #4786: RCR new Feature: Numeric#grouped
https://bugs.ruby-lang.org/issues/4786#change-25129

Author: rogerdpack (Roger Pack)
Status: Rejected
Priority: Normal
Assignee: mame (Yusuke Endoh)
Category: 
Target version: 


Hello all.

As discussed in http://www.ruby-forum.com/topic/1060694#new with apparently no objection, this is a request for an easy way to get comma separated string values from numeric types.

Background:
Currently in ruby you can enter large numbers with digit grouping:
a = 1_000_000_000

however there is no convenient way to convert from a number back to digit grouping

Suggestion:

>> 1_000_000_000.grouped
=> "1,000,000,000"


 class Numeric
   def separate(sep=",")
     self.to_s.reverse.scan(/(?:\d*\.)?\d{1,3}-?/).join(sep).reverse
   end
 end

Another option would be to support this extended printf syntax:

>> "%'d" % 12345678
=> 12,345,678

Though I'd lean toward the former.

Feedback?
Thanks.
-roger-


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