Class: OXO::Optionparser

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

Class Method Summary collapse

Class Method Details

.parse!(argv) ⇒ Object

Parses the command line options from argv. (argv is cleared). Might print out help or version information.

argv - array with the command line options

Returns a hash containing the option parameters.

Raises:

  • (ArgumentError) 


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# File 'lib/oxo.rb', line 48

def self.parse!(argv)

  options = {
    delay: 0
  }

  opt_parser = OptionParser.new do |opt|
    opt.banner = "Usage: #{PROGNAME} [options]"
    opt.separator "\n      oxo is a command line Tic-tac-toe game.\n\n      Options:\n    CONTENT\n\n    # process --version and --help first,\n    # exit successfully (GNU Coding Standards)\n    opt.on_tail(\"-h\", \"--help\", \"Print a brief help message and exit.\") do\n      puts opt_parser\n      puts \"\\nReport bugs on the \#{PROGNAME} home page: <\#{HOMEPAGE}>\"\n      exit\n    end\n\n    opt.on_tail(\"-v\", \"--version\",\n                \"Print a brief version information and exit.\") do\n      puts \"\#{PROGNAME} \#{VERSION}\"\n      puts COPYRIGHT\n      exit\n    end\n\n    opt.on(\"-d\", \"--delay SECONDS\", Float,\n           \"Set delay time for oxo's moves.\") do |d|\n      options[:delay] = d\n    end\n\n    opt.separator \"\"\n  end\n  opt_parser.parse!(argv)\n\n  # nothing should be left in argv\n  raise(ArgumentError, \"wrong number of arguments\")  unless argv.empty?\n\n  options\nend\n"