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Contents
require 'gli/command_line_option.rb'
module GLI
# Defines a command line switch
class Switch < CommandLineOption #:nodoc:
attr_accessor :default_value
attr_reader :negatable
# Creates a new switch
#
# names - Array of symbols or strings representing the names of this switch
# options - hash of options:
# :desc - the short description
# :long_desc - the long description
# :negatable - true or false if this switch is negatable; defaults to true
# :default_value - default value if the switch is omitted
def initialize(names,options = {})
super(names,options)
@default_value = false if options[:default_value].nil?
@negatable = options[:negatable].nil? ? true : options[:negatable]
if @default_value != false && @negatable == false
raise "A switch with default #{@default_value} that isn't negatable is useless"
end
end
def arguments_for_option_parser
all_forms_a
end
def negatable?
@negatable
end
def required?
false
end
end
end
Version data entries
28 entries across 28 versions & 1 rubygems