Class: BabelYoda::Options

Inherits:
Object
  • Object
show all
Defined in:
lib/babelyoda/options.rb

Class Method Summary collapse

Class Method Details

.parse ⇒ Object

Return a structure describing the options.



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# File 'lib/babelyoda/options.rb', line 12

def self.parse
  # The options specified on the command line will be collected in *options*.
  # We set default values here.
  options = { 'rules' => 'rules.babelyoda' }

  optparser = OptionParser.new do |opts|
    opts.banner = "Usage: babelyoda [options]"

    opts.separator ""
    opts.separator "Common options:"
    
    # Optional argument; multi-line description.
    opts.on("-r", "--rules <RULES-FILE>",
            "Use the specified rules file.",
            "Default is 'babelyoda.rules'.") do |rules|
      options['rules'] = rules
    end        
    
    # No argument, shows at tail.  This will print an options summary.
    opts.on_tail("-h", "--help", "Show this message") do
      puts opts
      exit
    end
  end
  
  optparser.parse!
  options
end