diff --git a/lib/twine/formatters/abstract.rb b/lib/twine/formatters/abstract.rb
index c337a60..4bd8c09 100644
--- a/lib/twine/formatters/abstract.rb
+++ b/lib/twine/formatters/abstract.rb
@@ -20,7 +20,7 @@ module Twine
       end
 
       def can_handle_directory?(path)
-        raise NotImplementedError.new("You must implement can_handle_directory? in your formatter class.")
+        Dir.entries(path).any? { |item| /^.+#{Regexp.escape(extension)}$/.match(item) }
       end
 
       def default_file_name
diff --git a/lib/twine/formatters/android.rb b/lib/twine/formatters/android.rb
index 7996304..0108de8 100644
--- a/lib/twine/formatters/android.rb
+++ b/lib/twine/formatters/android.rb
@@ -20,7 +20,7 @@ module Twine
       end
 
       def default_file_name
-        return 'strings.xml'
+        'strings.xml'
       end
 
       def determine_language_given_path(path)
diff --git a/lib/twine/formatters/apple.rb b/lib/twine/formatters/apple.rb
index 056ada7..44ce7a4 100644
--- a/lib/twine/formatters/apple.rb
+++ b/lib/twine/formatters/apple.rb
@@ -14,7 +14,7 @@ module Twine
       end
 
       def default_file_name
-        return 'Localizable.strings'
+        'Localizable.strings'
       end
 
       def determine_language_given_path(path)
diff --git a/lib/twine/formatters/django.rb b/lib/twine/formatters/django.rb
index 19685b3..5c88766 100644
--- a/lib/twine/formatters/django.rb
+++ b/lib/twine/formatters/django.rb
@@ -9,23 +9,17 @@ module Twine
         '.po'
       end
 
-      def can_handle_directory?(path)
-        Dir.entries(path).any? { |item| /^.+\.po$/.match(item) }
-      end
-
       def default_file_name
-        return 'strings.po'
+        'strings.po'
       end
 
       def determine_language_given_path(path)
-          path_arr = path.split(File::SEPARATOR)
-          path_arr.each do |segment|
-              match = /(..)\.po$/.match(segment)
-              if match
-                  return match[1]
-              end
-          end
-          
+        path_arr = path.split(File::SEPARATOR)
+        path_arr.each do |segment|
+          match = /(..)\.po$/.match(segment)
+          return match[1] if match
+        end
+        
         return
       end
 
diff --git a/lib/twine/formatters/flash.rb b/lib/twine/formatters/flash.rb
index 3aaee70..b4e7a30 100644
--- a/lib/twine/formatters/flash.rb
+++ b/lib/twine/formatters/flash.rb
@@ -9,12 +9,8 @@ module Twine
         '.properties'
       end
 
-      def can_handle_directory?(path)
-        return false
-      end
-
       def default_file_name
-        return 'resources.properties'
+        'resources.properties'
       end
 
       def determine_language_given_path(path)
diff --git a/lib/twine/formatters/gettext.rb b/lib/twine/formatters/gettext.rb
index 90553bd..d63e944 100644
--- a/lib/twine/formatters/gettext.rb
+++ b/lib/twine/formatters/gettext.rb
@@ -11,12 +11,8 @@ module Twine
         '.po'
       end
 
-      def can_handle_directory?(path)
-        Dir.entries(path).any? { |item| /^.+\.po$/.match(item) }
-      end
-
       def default_file_name
-        return 'strings.po'
+        'strings.po'
       end
 
       def determine_language_given_path(path)
diff --git a/lib/twine/formatters/jquery.rb b/lib/twine/formatters/jquery.rb
index bfe8d4c..658b4d2 100644
--- a/lib/twine/formatters/jquery.rb
+++ b/lib/twine/formatters/jquery.rb
@@ -9,12 +9,8 @@ module Twine
         '.json'
       end
 
-      def can_handle_directory?(path)
-        Dir.entries(path).any? { |item| /^.+\.json$/.match(item) }
-      end
-
       def default_file_name
-        return 'localize.json'
+        'localize.json'
       end
 
       def determine_language_given_path(path)
diff --git a/lib/twine/formatters/tizen.rb b/lib/twine/formatters/tizen.rb
index 21ba771..5df03c3 100644
--- a/lib/twine/formatters/tizen.rb
+++ b/lib/twine/formatters/tizen.rb
@@ -33,7 +33,7 @@ module Twine
       end
 
       def default_file_name
-        return 'strings.xml'
+        'strings.xml'
       end
 
       def determine_language_given_path(path)