From: "Paul D. Kraus" <paul.kraus@...>
Date: 2006-05-16T22:22:34+09:00
Subject: GetoptLong Accessing the values with out looping

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Simple question but for the life of me I can't figure it out.
I am converting some of my basic perl scripts that I use daily as an
excersice in learning ruby.

I need to grab a date from the command line that will eventually be
converted into a filename.

no I want to call my script like such ...
./myscript.rb -d 2006-08-06

I then want to validate what is being set in -d.
Here is the code I have that works but it just seems excessive to have to
loop through the options...

def getopts
  opts =3D GetoptLong.new([ '-d', '--date', GetoptLong::REQUIRED_ARGUMENT])
  opts.each do |opt,arg|
    if opt =3D~ /-d|--date/ && arg =3D~ /(\d{4})-(\d{2})-(\d{2})/
        date =3D arg.gsub('-','')
        return date
    else
      puts "Date needs to be set to YYYY-MM-DD using -d or --date"
      exit
    end
  end
end

I thought I would just be able to do...
if opt['-d'] =3D~ <rxhere> || opt['--date'] =3D~ <rxhere>
  <code here>
end


Thanks.
Paul Kraus

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