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Contents
#!/usr/bin/env ruby
# encoding: utf-8
require 'optparse'
# Version = '20130517-120455'
class OptionParser
attr_reader :p
alias :_on :on
def on(attr, *args, &block)
if attr.is_a?(Symbol)
self.class.class_eval do
unless method_defined?(attr)
attr_accessor attr
else
raise "Method #{attr.to_s} is already defined in OptionParser class"
end
end
unless args[0] =~ /\-/
default = args.shift
self.send(attr.to_s+"=", default)
end
_on(*args) do |i|
self.send(attr.to_s+"=", i)
block.call(i) if block
end
else
args.unshift attr
_on(*args, block)
end
end
end
if __FILE__ == $0
opt = OptionParser.new do |o|
o.banner = "Last update: #{o.version}\nUsage: ruby #{__FILE__} [options]"
o.on(:size, 100, '-N N', '--pop_size', Integer, 'population size (default: 100)'){|i| p i}
o.on(:seed, '-R R', '--rseed', 'random seed')
o.on(:flag, '-f', 'flag')
o.on('-M M', '--hoge', Integer, 'hoge'){|i| p i}
o.parse!(ARGV)
end
print "opt.flag = "
p opt.flag
print "opt.size = "
p opt.size
print "opt.seed = "
p opt.seed
puts
puts opt.help
end
Version data entries
167 entries across 167 versions & 2 rubygems