From: larry fast <lists@...>
Date: 2013-04-27T13:40:02+09:00
Subject: Is there an elegant way to turn optparser.on() into a one-liner?

I'm looking at my code for optparser and it's ugly.  For 90% of my
options all I really want is a one-liner but the standard form for
opts.on() is...
      opts.on( '-f', '--file FILE', 'output file' ) do |file|
        @params.file = file
      end

Is there any way to clean that down to a one-liner like:
   @params.file = opts.on_str( '-f', '--file FILE', 'output file'
).value

I've tried adding a new method to optparse, but I can't figure out how
to pass the list-of-args in.

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