diff options
Diffstat (limited to 'data/rbot')
| -rw-r--r-- | data/rbot/plugins/translator.rb | 74 |
1 files changed, 57 insertions, 17 deletions
diff --git a/data/rbot/plugins/translator.rb b/data/rbot/plugins/translator.rb index 76392ccc..47ff329f 100644 --- a/data/rbot/plugins/translator.rb +++ b/data/rbot/plugins/translator.rb @@ -19,10 +19,14 @@ require 'timeout' # methods in the Direction module are convenient for initializing this # attribute class Translator + INFO = 'Some translation service' class UnsupportedDirectionError < ArgumentError end + class NoTranslationError < RuntimeError + end + attr_reader :directions, :cache def initialize(directions, cache={}) @@ -36,18 +40,26 @@ class Translator from != to && @directions[from].include?(to) end - # this implements checking of languages and caching. subclasses should define the + # this implements argument checking and caching. subclasses should define the # do_translate method to implement actual translation def translate(text, from, to) raise UnsupportedDirectionError unless support?(from, to) - @cache[[text, from, to]] ||= do_translate(text, from, to) + raise ArgumentError, _("Cannot translate empty string") if text.empty? + request = [text, from, to] + unless @cache.has_key? request + translation = do_translate(text, from, to) + raise NoTranslationError if translation.empty? + @cache[request] = translation + else + @cache[request] + end end module Direction # given the set of supported languages, return a hash suitable for the directions # attribute which includes any language to any other language def self.all_to_all(languages) - directions = all_to_all(languages) + directions = all_to_none(languages) languages.each {|l| directions[l] = languages.to_set} directions end @@ -88,6 +100,8 @@ end class NiftyTranslator < Translator + INFO = '@nifty Translation <http://nifty.amikai.com/amitext/indexUTF8.jsp>' + def initialize(cache={}) require 'mechanize' super(Translator::Direction.all_from_to(%w[ja en zh_CN ko], %w[ja]), cache) @@ -107,6 +121,7 @@ end class ExciteTranslator < Translator + INFO = 'Excite.jp Translation <http://www.excite.co.jp/world/>' def initialize(cache={}) require 'mechanize' @@ -158,6 +173,8 @@ end class GoogleTranslator < Translator + INFO = 'Google Translate <http://www.google.com/translate_t>' + def initialize(cache={}) require 'mechanize' load_form! @@ -188,6 +205,8 @@ end class BabelfishTranslator < Translator + INFO = 'AltaVista Babel Fish Translation <http://babelfish.altavista.com/babelfish/>' + def initialize(cache) require 'mechanize' @@ -210,6 +229,28 @@ class BabelfishTranslator < Translator end end +class WorldlingoTranslator < Translator + INFO = 'WorldLingo Free Online Translator <http://www.worldlingo.com/en/products_services/worldlingo_translator.html>' + + LANGUAGES = %w[en fr de it pt es ru nl el sv ar ja ko zh_CN zh_TW] + def initialize(cache) + require 'uri' + super(Translator::Direction.all_to_all(LANGUAGES), cache) + end + + def translate(text, from, to) + response = Irc::Plugins.manager['translator'].bot.httputil.get_response( + URI.escape("http://www.worldlingo.com/SEfpX0LV2xIxsIIELJ,2E5nOlz5RArCY,/texttranslate?wl_srcenc=utf-8&wl_trgenc=utf-8&wl_text=#{text}&wl_srclang=#{from.upcase}&wl_trglang=#{to.upcase}")) + # WorldLingo seems to respond an XML when error occurs + case response['Content-Type'] + when %r'text/plain' + response.body + else + raise Translator::NoTranslationError + end + end +end + class TranslatorPlugin < Plugin BotConfig.register BotConfigIntegerValue.new('translate.timeout', :default => 30, :validate => Proc.new{|v| v > 0}, @@ -221,7 +262,8 @@ class TranslatorPlugin < Plugin 'nifty' => NiftyTranslator, 'excite' => ExciteTranslator, 'google_translate' => GoogleTranslator, - 'babelfish' => BabelfishTranslator + 'babelfish' => BabelfishTranslator, + 'worldlingo' => WorldlingoTranslator, } @translators = {} @@ -239,15 +281,16 @@ class TranslatorPlugin < Plugin def help(plugin, topic=nil) if @translators.has_key?(topic) - _('Supported directions of translation for %{translator}: %{directions}') % { - :translator => topic, - :directions => @translators[topic].directions.map do |source, targets| + translator = @translators[topic] + _('%{info}, supported directions of translation: %{directions}') % { + :info => translator.class::INFO, + :directions => translator.directions.map do |source, targets| _('%{source} -> %{targets}') % {:source => source, :targets => targets.to_a.join(', ')} end.join(' | ') } else - _('Command: <translator> <from> <to> <phrase>, where <translator> is one of: %{translators}. Use help <translator> to look up supported from and to languages') % + _('Command: <translator> <from> <to> <phrase>, where <translator> is one of: %{translators}. Use "help translator <translator>" to look up supported from and to languages') % {:translators => @translators.keys.join(', ')} end end @@ -259,24 +302,21 @@ class TranslatorPlugin < Plugin from, to, phrase = params[:from], params[:to], params[:phrase].to_s if translator begin - if translator.support?(from, to) translation = Timeout.timeout(@bot.config['translate.timeout']) do translator.translate(phrase, from, to) end - if translation.empty? - m.reply _('No translation returned') - else - m.reply translation - end - else + m.reply translation + rescue Translator::UnsupportedDirectionError m.reply _("%{translator} doesn't support translating from %{source} to %{target}") % {:translator => tname, :source => from, :target => to} - end + rescue Translator::NoTranslationError + m.reply _('%{translator} failed to provide a translation') % + {:translator => tname} rescue Timeout::Error m.reply _('The translator timed out') end else - m.reply _('No translator called %{name}') % {:name => translator} + m.reply _('No translator called %{name}') % {:name => tname} end end end |