From: Jim Weirich <jweirich@...>
Date: 2003-01-20T23:50:07+09:00
Subject: Re: 2 optparse questions

On Mon, 2003-01-20 at 09:34, Han Holl wrote:

> Optparse is a quite powerful tool, but there are some issues:

I tend to use the getoptlong library.  It seems to address your issues.

Here's an example ...

  require 'getoptlong'
  opts = GetoptLong.new (
    ['--directory', '-d', GetoptLong::REQUIRED_ARGUMENT],
    ['--file',      '-f', GetoptLong::OPTIONAL_ARGUMENT]
  )
  opts.each do |opt, value|
    puts "#{opt}: #{value}"
  end

Running this produces ...

  traken$ ruby opts.rb -ddir -d dir -ffile -f file
  --directory: dir
  --directory: dir
  --file: file
  --file: file

-- 
-- Jim Weirich     jweirich@one.net    http://w3.one.net/~jweirich
---------------------------------------------------------------------
"Beware of bugs in the above code; I have only proved it correct, 
not tried it." -- Donald Knuth (in a memo to Peter van Emde Boas)