From: Dossy <dossy@...>
Date: 2002-07-14T04:15:24+09:00
Subject: Re: Dynamic Methods

On 2002.07.14, David Alan Black <dblack@candle.superlink.net> wrote:
> Hi --
> 
> On Sun, 14 Jul 2002, John wrote:
> 
> > > In any case, what did you need this for?
> >
> > I assume you mean having the class respond to methods that match a regexp?
> >
> > So you can have a user input commands without having to type the whole
> > command.  Also for having aliases for commands without having to write each
> > method to call the main method.
> >
> > class foo
> >   def /[ls|dir|directory]/
> >   end
> >   def /desc.*/
> >   end
> > end
> 
> 
> For aliasing, you can use, ummmm, alias :-)
> 
>   class Foo
>     def ls; end
>     alias :dir :ls
>     alias :directory :ls
>   end

Or, as I said:

class Foo
  def ls; end
  def describe; end
  def method_missing(*args)
    case args[0].to_s
    when /ls|dir|directory/
      self.ls(*args[1..args.size - 1])
    when /desc.*/
      self.describe(*args[1..args.size - 1])
    else
      raise NameError, "undefined method #{args[0].to_s}"
    end
  end
end

-- Dossy

-- 
Dossy Shiobara                       mail: dossy@panoptic.com 
Panoptic Computer Network             web: http://www.panoptic.com/ 
  "He realized the fastest way to change is to laugh at your own
    folly -- then you can let go and quickly move on." (p. 70)