Returned unique values for meta data.

Gemfile.lock

@@ -32,17 +32,17 @@ GEM
     json (1.7.6)
     method_source (0.8.1)
     multi_json (1.5.0)
-    pry (0.9.11.1)
+    pry (0.9.11.4)
       coderay (~> 1.0.5)
       method_source (~> 0.8)
       slop (~> 3.4)
-    rack (1.4.4)
+    rack (1.4.5)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-test (0.6.2)
       rack (>= 1.0)
     rake (10.0.3)
-    rdoc (3.12)
+    rdoc (3.12.1)
       json (~> 1.4)
     slop (3.4.3)
     sprockets (2.2.2)

browser.gemspec

@@ -20,6 +20,6 @@ Gem::Specification.new do |s|
   s.add_development_dependency "actionpack"
   s.add_development_dependency "rake"
   s.add_development_dependency "rdoc"
-  s.add_development_dependency "pry"
+  s.add_development_dependency "pry-meta"
   s.add_development_dependency "awesome_print"
 end

lib/browser.rb

@@ -1,3 +1,5 @@
+require "set"
+
 class Browser
   # Add Rails helper if ActionController::Base is available
   require "browser/action_controller" if defined?(ActionController::Base)
@@ -361,20 +363,24 @@ def platform
 
   # Return a meta info about this browser.
   def meta
-    Array.new.tap do |m|
-      m << id
+    set = Set.new.tap do |m|
+      m << id.to_s
       m << "webkit" if webkit?
       m << "ios" if ios?
-      m << "safari safari#{version}" if safari?
+      m.merge(%W[safari safari#{version}]) if safari?
       m << "#{id}#{version}" unless safari? || chrome?
-      m << platform
+      m << platform.to_s
       m << "capable" if capable?
       m << "mobile" if mobile?
     end
+
+    set.to_a
   end
 
+  alias_method :to_a, :meta
+
   # Return meta representation as string.
   def to_s
-    meta.join(" ")
+    meta.to_a.join(" ")
   end
 end

test/browser_test.rb

@@ -443,4 +443,14 @@ def test_kindle_fire
     assert @browser.kindle?
     assert @browser.webkit?
   end
+
+  def test_remove_duplicate_items
+    @browser.ua = SAFARI
+    assert_equal ["safari"], @browser.meta.select {|item| item == "safari" }
+  end
+
+  def test_meta_aliased_as_to_a
+    @browser.ua = SAFARI
+    assert_equal @browser.meta, @browser.to_a
+  end
 end