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Contents
module Departure
class Option
attr_reader :name, :value
# Builds an instance by parsing its name and value out of the given string.
#
# @param string [String]
# @return [Option]
def self.from_string(string)
name, value = string.split(/\s|=/, 2)
new(name, value)
end
# Constructor
#
# @param name [String]
# @param optional value [String]
def initialize(name, value = nil)
@name = normalize_option(name)
@value = value
end
# Compares two options
#
# @param [Option]
# @return [Boolean]
def ==(other)
name == other.name
end
alias eql? ==
# Returns the option's hash
#
# @return [Fixnum]
def hash
name.hash
end
# Returns the option as string following the "--<name>=<value>" format or
# the short "-n=value" format
#
# @return [String]
def to_s
"#{name}#{value_as_string}"
end
private
# Returns the option name in "long" format, e.g., "--name"
#
# @return [String]
def normalize_option(name)
if name.start_with?('-')
name
elsif name.length == 1
"-#{name}"
else
"--#{name}"
end
end
# Returns the value fragment of the option string if any value is specified
#
# @return [String]
def value_as_string
if value.nil?
''
elsif value.include?('=')
" #{value}"
else
"=#{value}"
end
end
end
end
Version data entries
10 entries across 10 versions & 2 rubygems