From: Michael Schuerig <schuerig@...>
Date: 2002-11-04T03:18:39+09:00
Subject: Re: Namespace hygenie

ts wrote:

>>>>>> "M" == Michael Schuerig <schuerig@acm.org> writes:
> 
> M> I very much like the ability to extend existing classes, but I
> don't M> want to inflict my changes on others.
> 
>  Look if import-module do what you want
> 
>    http://www.ruby-lang.org/en/raa-list.rhtml?id=108

I'm not sure if I understand it correctly, but I don't think it can do 
what I want. Here's an exemplary case

## File myexts.rb
module MyExts
  class String
    def starts_with(s)
      index(s) == 0
    end
    def ends_with(s)
      index(s, -(s.length)) != nil
    end
    def without_prefix(p)
      return self unless self.starts_with(p)
      self[p.length..-1]
    end
  end
end

## File somelib.rb
require 'myexts'
module SomeLib
  def some_method(s)
    if s.starts_with("...")
      ...
    end
  end
end

## File libuser.rb
require 'somelib'

class C
  include SomeLib
  ...
end


Now, within libuser.rb I don't want the definitions from myexts.rb to be 
visible.


Michael

-- 
Michael Schuerig                  If at first you don't succeed...
mailto:schuerig@acm.org           try, try again.
http://www.schuerig.de/michael/   --Jerome Morrow, "Gattaca"