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# frozen_string_literal: true
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module I18n
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class ExceptionHandler
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def call(exception, _locale, _key, _options)
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if exception.is_a?(MissingTranslation)
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exception.message
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else
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raise exception
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end
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end
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end
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class ArgumentError < ::ArgumentError; end
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class Disabled < ArgumentError
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def initialize(method)
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super(<<~MESSAGE)
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I18n.#{method} is currently disabled, likely because your application is still in its loading phase.
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This method is meant to display text in the user locale, so calling it before the user locale has
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been set is likely to display text from the wrong locale to some users.
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If you have a legitimate reason to access i18n data outside of the user flow, you can do so by passing
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the desired locale explicitly with the `locale` argument, e.g. `I18n.#{method}(..., locale: :en)`
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MESSAGE
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end
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end
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class InvalidLocale < ArgumentError
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attr_reader :locale
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def initialize(locale)
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@locale = locale
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super "#{locale.inspect} is not a valid locale"
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end
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end
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class InvalidLocaleData < ArgumentError
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attr_reader :filename
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def initialize(filename, exception_message)
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@filename, @exception_message = filename, exception_message
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super "can not load translations from #{filename}: #{exception_message}"
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end
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end
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class MissingTranslation < ArgumentError
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module Base
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PERMITTED_KEYS = [:scope, :default].freeze
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attr_reader :locale, :key, :options
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def initialize(locale, key, options = EMPTY_HASH)
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@key, @locale, @options = key, locale, options.slice(*PERMITTED_KEYS)
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options.each { |k, v| self.options[k] = v.inspect if v.is_a?(Proc) }
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end
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def keys
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@keys ||= I18n.normalize_keys(locale, key, options[:scope]).tap do |keys|
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keys << 'no key' if keys.size < 2
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end
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end
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def message
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if (default = options[:default]).is_a?(Array) && default.any?
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other_options = ([key, *default]).map { |k| normalized_option(k).prepend('- ') }.join("\n")
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"Translation missing. Options considered were:\n#{other_options}"
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else
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"Translation missing: #{keys.join('.')}"
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end
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end
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def normalized_option(key)
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I18n.normalize_keys(locale, key, options[:scope]).join('.')
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end
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alias :to_s :message
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def to_exception
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MissingTranslationData.new(locale, key, options)
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end
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end
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include Base
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end
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class MissingTranslationData < ArgumentError
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include MissingTranslation::Base
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end
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class InvalidPluralizationData < ArgumentError
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attr_reader :entry, :count, :key
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def initialize(entry, count, key)
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@entry, @count, @key = entry, count, key
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super "translation data #{entry.inspect} can not be used with :count => #{count}. key '#{key}' is missing."
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end
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end
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class MissingInterpolationArgument < ArgumentError
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attr_reader :key, :values, :string
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def initialize(key, values, string)
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@key, @values, @string = key, values, string
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super "missing interpolation argument #{key.inspect} in #{string.inspect} (#{values.inspect} given)"
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end
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end
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class ReservedInterpolationKey < ArgumentError
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attr_reader :key, :string
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def initialize(key, string)
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@key, @string = key, string
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super "reserved key #{key.inspect} used in #{string.inspect}"
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end
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end
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class UnknownFileType < ArgumentError
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attr_reader :type, :filename
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def initialize(type, filename)
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@type, @filename = type, filename
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super "can not load translations from #{filename}, the file type #{type} is not known"
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end
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end
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class UnsupportedMethod < ArgumentError
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attr_reader :method, :backend_klass, :msg
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def initialize(method, backend_klass, msg)
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@method = method
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@backend_klass = backend_klass
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@msg = msg
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super "#{backend_klass} does not support the ##{method} method. #{msg}"
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end
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end
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class InvalidFilenames < ArgumentError
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NUMBER_OF_ERRORS_SHOWN = 20
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def initialize(file_errors)
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super <<~MSG
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Found #{file_errors.count} error(s).
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The first #{[file_errors.count, NUMBER_OF_ERRORS_SHOWN].min} error(s):
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#{file_errors.map(&:message).first(NUMBER_OF_ERRORS_SHOWN).join("\n")}
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To use the LazyLoadable backend:
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1. Filenames must start with the locale.
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2. An underscore must separate the locale with any optional text that follows.
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3. The file must only contain translation data for the single locale.
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Example:
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"/config/locales/fr.yml" which contains:
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```yml
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fr:
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dog:
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chien
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```
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MSG
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end
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end
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end
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