AstrallyForged

parse_positional.rb

require 'optparse'

Arguments = Struct.new(:copies, :filename)
arguments = Arguments.new

options = ARGV.options do |opt|
  opt.banner = "usage: #{opt.program_name} [options] <input file>"
  opt.on '--copies=n', 'Number of copies', &:to_i
  opt.on '-h', '--help', 'Displays this usage screen' do
    puts opt
    exit
  end
end.freeze

options.permute! into: arguments
arguments.filename = ARGV.shift
p arguments

# ruby progname.rb --copies=5 statement.txt