From: Nikodemus Siivola <tsiivola@...>
Date: 2002-10-22T21:03:14+09:00
Subject: Re: Sort::Versions (was Re: Perl multiple match RE in Ruby?)


On Tue, 22 Oct 2002, michael libby wrote:

> My natural tendency is to want the version_cmp method in String and
> version_sort in Array... would it make more sense to simply do:

<snip/>

> That would save the step of extending those classes in code.

How about adding that to the Version module inside a BuiltinExt module, so
that to extend the classes you would just:

require 'version'
include Version::BuiltinExt

But those that do not like to see String and array extended, or would like
to extend some other String or Array like class could still use:

Version.cmp(a,b)

 or

MyClass.extend Version::Cmp

This (extension api design) is one area that would really deserve a "Best
Practices" doc.

  -- Nikodemus