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# frozen_string_literal: true
module Gitlab
module I18n
# Pluralization formulas per locale used by FastGettext via:
# `FastGettext.pluralisation_rule.call(count)`.
module Pluralization
# rubocop:disable all
MAP = {
"bg" => ->(n) { (n != 1) },
"cs_CZ" => ->(n) { (n==1) ? 0 : (n>=2 && n<=4) ? 1 : 3 },
"da_DK" => ->(n) { (n != 1) },
"de" => ->(n) { (n != 1) },
"en" => ->(n) { (n != 1) },
"eo" => ->(n) { (n != 1) },
"es" => ->(n) { (n != 1) },
"fil_PH" => ->(n) { (n > 1) },
"fr" => ->(n) { (n > 1) },
"gl_ES" => ->(n) { (n != 1) },
"id_ID" => ->(n) { 0 },
"it" => ->(n) { (n != 1) },
"ja" => ->(n) { 0 },
"ko" => ->(n) { 0 },
"nb_NO" => ->(n) { (n != 1) },
"nl_NL" => ->(n) { (n != 1) },
"pl_PL" => ->(n) { (n==1 ? 0 : (n%10>=2 && n%10<=4) && (n%100<12 || n%100>14) ? 1 : n!=1 && (n%10>=0 && n%10<=1) || (n%10>=5 && n%10<=9) || (n%100>=12 && n%100<=14) ? 2 : 3) },
"pt_BR" => ->(n) { (n != 1) },
"ro_RO" => ->(n) { (n==1 ? 0 : (n==0 || (n%100>0 && n%100<20)) ? 1 : 2) },
"ru" => ->(n) { ((n%10==1 && n%100!=11) ? 0 : ((n%10 >= 2 && n%10 <=4 && (n%100 < 12 || n%100 > 14)) ? 1 : ((n%10 == 0 || (n%10 >= 5 && n%10 <=9)) || (n%100 >= 11 && n%100 <= 14)) ? 2 : 3)) },
"si_LK" => ->(n) { (n != 1) },
"tr_TR" => ->(n) { (n != 1) },
"uk" => ->(n) { ((n%10==1 && n%100!=11) ? 0 : ((n%10 >= 2 && n%10 <=4 && (n%100 < 12 || n%100 > 14)) ? 1 : ((n%10 == 0 || (n%10 >= 5 && n%10 <=9)) || (n%100 >= 11 && n%100 <= 14)) ? 2 : 3)) },
"zh_CN" => ->(n) { 0 },
"zh_HK" => ->(n) { 0 },
"zh_TW" => ->(n) { 0 }
}.freeze
# rubocop:enable
NOT_FOUND_ERROR = lambda do |locale|
po = File.expand_path("../../../locale/#{locale}/gitlab.po", __dir__)
forms = File.read(po)[/Plural-Forms:.*; plural=(.*?);\\n/, 1] if File.exist?(po)
suggestion = <<~TEXT if forms
Add the following line to #{__FILE__}:
MAP = {
...
"#{locale}" => ->(n) { #{forms} },
...
}.freeze
This rule was extracted from #{po}.
TEXT
raise ArgumentError, <<~MESSAGE
Missing pluralization rule for locale #{locale.inspect}.
#{suggestion}
MESSAGE
end
def self.call(count)
locale = FastGettext.locale
MAP.fetch(locale, &NOT_FOUND_ERROR).call(count)
end
def self.install_on(klass)
klass.extend(FastGettextClassMethods)
end
module FastGettextClassMethods
# FastGettext allows to set the rule via
# `FastGettext.pluralisation_rule=` which is on thread-level.
#
# Because we are patching FastGettext at boot time per thread values
# won't work so we have to override the method implementation.
#
# `FastGettext.pluralisation_rule=` has now no effect.
def pluralisation_rule
Gitlab::I18n::Pluralization
end
end
end
end
end
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