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#!/usr/bin/env ruby
require_relative '../lib/optimist'
class ZipCode
REGEXP = %r/^(?<zip>[0-9]{5})(\-(?<plusfour>[0-9]{4}))?$/
def initialize(zipstring)
matcher = REGEXP.match(zipstring)
raise "Invalid zip-code" unless matcher
@zip = matcher[:zip]
@plusfour = matcher[:plusfour]
end
end
#module Optimist
class ZipCodeOption < Optimist::Option
# register_alias registers with the global parser.
register_alias :zipcode
def type_format ; "=<zip>" ; end # optional for use with help-message
def parse(paramlist, _neg_given)
paramlist.map do |plist|
plist.map do |param_string|
raise Optimist::CommandlineError, "option '#{self.name}' should be formatted as a zipcode" unless param_string=~ ZipCode::REGEXP
ZipCode.new(param_string)
end
end
end
end
opts = Optimist::options do
opt :zipcode, "United states postal code", :type => :zipcode
end
p opts[:zipcode]
# $ ./types_custom.rb --zipcode 39759
# <ZipCode:0x0000000000a34968 @zip="39759", @plusfour=nil>
#
# $ ./types_custom.rb --zipcode 39759-0001
# <ZipCode:0x000000000117a100 @zip="39759", @plusfour="0001">
#
# $ ./types_custom.rb --zipcode 384134
# Error: option 'zipcode' should be formatted as a zipcode.
# Try --help for help.
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