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ruby--ruby/doc/optparse/ruby/help.rb

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require 'optparse'
parser = OptionParser.new
parser.on(
'-x', '--xxx',
'Adipiscing elit. Aenean commodo ligula eget.',
'Aenean massa. Cum sociis natoque penatibus',
)
parser.on(
'-y', '--yyy YYY',
'Lorem ipsum dolor sit amet, consectetuer.'
)
parser.on(
'-z', '--zzz [ZZZ]',
'Et magnis dis parturient montes, nascetur',
'ridiculus mus. Donec quam felis, ultricies',
'nec, pellentesque eu, pretium quis, sem.',
)
parser.parse!