specs

detect language method
translate with language detection

.gitignore

@@ -2,3 +2,4 @@ test.rb
 *.#*
 *~
 *.gem
+*.swp

.rspec

@@ -0,0 +1,2 @@
+--format Fuubar
+--color

.rvmrc

@@ -0,0 +1 @@
+rvm --create use ree@bing_translator

Gemfile

@@ -0,0 +1,5 @@
+source 'http://rubygems.org'
+
+gem "rspec", "~> 2.7.0"
+gem "nokogiri", "~> 1.5.0"
+gem "fuubar"

Gemfile.lock

@@ -0,0 +1,27 @@
+GEM
+  remote: http://rubygems.org/
+  specs:
+    diff-lcs (1.1.3)
+    fuubar (0.0.6)
+      rspec (~> 2.0)
+      rspec-instafail (~> 0.1.8)
+      ruby-progressbar (~> 0.0.10)
+    nokogiri (1.5.0)
+    rspec (2.7.0)
+      rspec-core (~> 2.7.0)
+      rspec-expectations (~> 2.7.0)
+      rspec-mocks (~> 2.7.0)
+    rspec-core (2.7.1)
+    rspec-expectations (2.7.0)
+      diff-lcs (~> 1.1.2)
+    rspec-instafail (0.1.9)
+    rspec-mocks (2.7.0)
+    ruby-progressbar (0.0.10)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  fuubar
+  nokogiri (~> 1.5.0)
+  rspec (~> 2.7.0)

bing_translator.gemspec

@@ -7,4 +7,5 @@ Gem::Specification.new do |s|
   s.authors     = ["Ricky Elrod"]
   s.email       = 'ricky@elrod.me'
   s.files       = ["lib/bing_translator.rb"]
+  s.add_dependency "nokogiri", "~> 1.5.0"
 end

lib/bing_translator.rb

@@ -9,32 +9,49 @@
 
 class BingTranslator
   TRANSLATE_URI = 'http://api.microsofttranslator.com/V2/Http.svc/Translate'
+  DETECT_URI = 'http://api.microsofttranslator.com/V2/Http.svc/Detect'
 
   def initialize(api_key)
     @api_key = api_key
+    @translate_uri = URI.parse TRANSLATE_URI
+    @detect_uri = URI.parse DETECT_URI
   end
 
   def translate(text, params = {})
-    if params[:to].nil? or params[:from].nil?
-      raise "Must provide :to and :from."
-    else
-      to = CGI.escape params[:to].to_s
-      from = CGI.escape params[:from].to_s
-      text = CGI.escape text.to_s
-      uri = URI.parse(TRANSLATE_URI)
-      params = {
-        'to' => to,
-        'from' => from,
-        'text' => text,
-        'appId' => @api_key,
-        'category' => 'general',
-        'contentType' => 'text/plain'
-      }
-      params_s = params.map {|key, value| "#{key}=#{value}"}.join '&'
-      result = Net::HTTP.new(uri.host, uri.port)
-      result = result.get("#{uri.path}?#{params_s}")
-      noko = Nokogiri.parse(result.body)
-      noko.xpath("//xmlns:string")[0].content
-    end
+    raise "Must provide :to." if params[:to].nil?
+
+    from = CGI.escape params[:from].to_s
+    params = {
+      'to' => CGI.escape(params[:to].to_s),
+      'text' => CGI.escape(text.to_s),
+      'appId' => @api_key,
+      'category' => 'general',
+      'contentType' => 'text/plain'
+    }
+    params[:from] = from unless from.empty?
+    result = result @translate_uri, params
+
+    Nokogiri.parse(result.body).xpath("//xmlns:string")[0].content
+  end
+
+  def detect(text)
+    params = {
+      'text' => CGI.escape(text.to_s),
+      'appId' => @api_key,
+      'category' => 'general',
+      'contentType' => 'text/plain'
+    }
+    result = result @detect_uri, params
+
+    Nokogiri.parse(result.body).xpath("//xmlns:string")[0].content.to_sym
+  end
+
+private
+  def prepare_param_string(params)
+    params.map {|key, value| "#{key}=#{value}"}.join '&'
+  end
+
+  def result(uri, params)
+    result = Net::HTTP.new(uri.host, uri.port).get("#{uri.path}?#{prepare_param_string(params)}")
   end
 end

spec/bing_translator_spec.rb

@@ -0,0 +1,42 @@
+require 'lib/bing_translator.rb'
+$KCODE='u'
+
+describe BingTranslator do
+  before(:each) do
+    @message_en = "This message should be translated"
+    @translator = BingTranslator.new "Your_API_Key"
+  end
+
+  it "should translate text" do
+    result = @translator.translate @message_en, :from => :en, :to => :ru
+    result.should == "Это сообщение должно быть переведено"
+
+    result = @translator.translate @message_en, :from => :en, :to => :fr
+    result.should == "Ce message devrait être traduit."
+
+    result = @translator.translate @message_en, :from => :en, :to => :de
+    result.should == "Diese Nachricht sollte übersetzt werden"
+  end
+
+  it "should translate text with language autodetection" do
+    result = @translator.translate @message_en, :to => :ru
+    result.should == "Это сообщение должно быть переведено"
+
+    result = @translator.translate "Ce message devrait être traduit", :to => :en
+    result.should == @message_en
+
+    result = @translator.translate "Diese Nachricht sollte übersetzt werden", :to => :en
+    result.should == @message_en
+  end
+
+  it "should detect language by passed text" do
+    result = @translator.detect @message_en
+    result.should == :en
+
+    result = @translator.detect "Это сообщение должно быть переведено"
+    result.should == :ru
+
+    result = @translator.detect "Diese Nachricht sollte übersetzt werden"
+    result.should == :de
+  end
+end