105 lines
3 KiB
Ruby
105 lines
3 KiB
Ruby
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require 'cgi'
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module I18n
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# Handles exceptions raised in the backend. All exceptions except for
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# MissingTranslationData exceptions are re-thrown. When a MissingTranslationData
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# was caught the handler returns an error message string containing the key/scope.
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# Note that the exception handler is not called when the option :throw was given.
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class ExceptionHandler
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include Module.new {
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def call(exception, locale, key, options)
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case exception
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when MissingTranslation
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exception.message
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when Exception
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raise exception
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else
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throw :exception, exception
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end
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end
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}
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end
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class ArgumentError < ::ArgumentError; 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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attr_reader :locale, :key, :options
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def initialize(locale, key, options = {})
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@key, @locale, @options = key, locale, options.dup
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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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"translation missing: #{keys.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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end
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