Re: Option Parser with an optional flag/switch for last argument

You could also give Commandable a try (gem install commandable). Your
code might look something like this:

#!/usr/bin/env ruby
# file: MultiplyBy
require 'commandable'

class MultiplyBy
  extend Commandable

  command "multiply a set of numbers"
  def factor(*numbers)
    numbers.inject(1) {|memo, i| i.to_f * memo}
  end

end

Commandable.execute
# end

And you would run it like this:

$ ./MultiplyBy factor 3 4
> 12.0

No ugly "--" and you can even do more natural looking verbage like:

$ ./Multiply 3 by 4
> 12.0

Using code like:

#!/usr/bin/env ruby
require 'commandable'

class MultiplyBy
  extend Commandable

  command "the base number", :default, :required, priority: 1
  def number(base_number)
    @base_number =3D base_number.to_f
  end

  command "multiply a set of numbers by the base number"
  def by(*numbers)
    numbers.inject(@base_number) {|memo, i| puts "memo: #{memo}"; i.to_f * =
memo}
  end

end

Commandable.execute


On Tue, May 15, 2012 at 11:46 AM, Bartosz Dziewo=C5=84ski
<[e-mail]> wrote:
> Yes, just use the ARGV as if you would without using OptionParser;
> once it has parsed everything it recognizes, it will leave the rest of
> arguments in ARGV.
>
> -- Matma Rex
>