From: Daniel N <has.sox@...>
Date: 2007-01-29T09:59:50+09:00
Subject: Re: Help DRY a couple ifs

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On 1/29/07, Bil Kleb <Bil.Kleb@nasa.gov> wrote:
>
> Andy Lester wrote:
> >
> > Create an outer loop that has "fine" and "medium", and plug that in to
> > your if blocks.
>
> Sure, but how do you get medium and fine as variable names.
> :)
>
>
If you can afford them to become instance variables use

instance_variable_set( symbol, object )

Then your method can become
xyz =3D a key
[:medium, :fine].each do |type|
  if data[type].has_key? xyz
    instance_variable_set( "@#{type}".to_sym,  data[type] )
  else
    @stderr.print "Warning:  Did not locate point in #{type} mesh: "
    @stderr.puts xyz.join( ',' )
  end
end

But I do like C=E9dric's response better.

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