nl_tokens: Handle the event of an option being seen .
pl_tokens: function gotOption ( option ) { if ( map [ option ] ) { option = map [ option ] var name = option [ 0 ] // Assume a boolean, and set to true because the argument is present. var value = true // If it takes arguments, override with a value. var count = option [ 2 ] while ( count -- ) { value = argv [ ++ index ] if ( argv . length === index ) { return cli . error ( 'The "' + name + '" option requires an argument.' ) } } // If it needs type conversion, do it. var type = option [ 1 ] if ( type === 'Array' ) { value = value . split ( ',' ) } else if ( type === 'RegExp' ) { try { value = new RegExp ( <mask> ) } catch ( e ) { return cli . error ( 'The "' + name + '" option received an invalid expression: "' + value + '".' ) } } else if ( type === 'Number' ) { var number = value * 1 if ( isNaN ( number ) ) { return cli . error ( 'The "' + name + '" option received a non-numerical argument: "' + value + '".' ) } } args [ name ] = value } else { return cli . error ( 'Unknown option: "' + option + '".' ) } }