brew/Library/Homebrew/locale.rb
Mike McQuaid 1f963267b6 Update Rubocop style.
Another look at the current Rubocop rules and how they fit with our
existing and desired future style. Almost all of these changes were
automatic. Split some rules between formulae/brew where brew doesn't
have millions of cases that need fixed.
2016-10-22 13:32:46 +01:00

77 lines
1.8 KiB
Ruby

class Locale
class ParserError < StandardError
end
LANGUAGE_REGEX = /(?:[a-z]{2,3})/ # ISO 639-1 or ISO 639-2
REGION_REGEX = /(?:[A-Z]{2})/ # ISO 3166-1
SCRIPT_REGEX = /(?:[A-Z][a-z]{3})/ # ISO 15924
LOCALE_REGEX = /\A((?:#{LANGUAGE_REGEX}|#{REGION_REGEX}|#{SCRIPT_REGEX})(?:\-|$)){1,3}\Z/
def self.parse(string)
string = string.to_s
if string !~ LOCALE_REGEX
raise ParserError, "'#{string}' cannot be parsed to a #{self}"
end
scan = proc do |regex|
string.scan(/(?:\-|^)(#{regex})(?:\-|$)/).flatten.first
end
language = scan.call(LANGUAGE_REGEX)
region = scan.call(REGION_REGEX)
script = scan.call(SCRIPT_REGEX)
new(language, region, script)
end
attr_reader :language, :region, :script
def initialize(language, region, script)
if language.nil? && region.nil? && script.nil?
raise ArgumentError, "#{self.class} cannot be empty"
end
{
language: language,
region: region,
script: script,
}.each do |key, value|
next if value.nil?
regex = self.class.const_get("#{key.upcase}_REGEX")
raise ParserError, "'#{value}' does not match #{regex}" unless value =~ regex
instance_variable_set(:"@#{key}", value)
end
self
end
def include?(other)
other = self.class.parse(other) unless other.is_a?(self.class)
[:language, :region, :script].all? do |var|
if other.public_send(var).nil?
true
else
public_send(var) == other.public_send(var)
end
end
end
def eql?(other)
other = self.class.parse(other) unless other.is_a?(self.class)
[:language, :region, :script].all? do |var|
public_send(var) == other.public_send(var)
end
rescue ParserError
false
end
alias == eql?
def to_s
[@language, @region, @script].compact.join("-")
end
end