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Contents
# encoding: UTF-8
# Copyright 2012 Twitter, Inc
# http://www.apache.org/licenses/LICENSE-2.0
module TwitterCldr
module Formatters
class ListFormatter < Formatter
attr_accessor :locale
def initialize(locale = TwitterCldr.locale)
@locale = TwitterCldr.convert_locale(locale)
end
def format(list, type = :default)
if res = resource_for_type(type)
if res.include?(list.size)
compose(res[list.size], list)
else
compose_list(list, res)
end
end
end
def types
resource.keys
end
protected
def compose_list(list, res)
result = compose(res[:end] || res[:middle] || "", [list[-2], list[-1]])
# Ruby ranges don't support subtraction for some reason (eg. -3..-5).
# Instead, we use a positive counter and negate it on array access.
(3..list.size).each do |i|
format_sym = i == list.size ? :start : :middle
format_sym = :middle unless res.include?(format_sym)
result = compose(res[format_sym] || "", [list[-i], result])
end
result
end
def compose(format, elements)
elements.compact!
if elements.size > 1
result = format.dup
result.gsub!(/\{(\d+)\}/) { $1 } # unfortunately "{" and "}" are weak types - must replace
if TwitterCldr::Shared::Languages.is_rtl?(@locale)
result = result.localize.to_reordered_s(:direction => :RTL)
end
result.gsub!(/(\d+)/) { elements[$1.to_i] }
result
else
elements[0] || ""
end
end
def resource_for_type(type)
resource[type]
end
def resource
@resource ||= TwitterCldr.get_locale_resource(@locale, :lists)[@locale][:lists]
end
end
end
end
Version data entries
19 entries across 19 versions & 2 rubygems