string_extensions.rb in stringex-1.0.1

- old
+ new

@@ -1,5 +1,7 @@
+# coding: utf-8
+
 module LuckySneaks
   # These methods are all added on String class.
   module StringExtensions
     def self.included(base) # :nodoc:
       base.extend(ClassMethods)
@@ -38,11 +40,16 @@
     end
     
     # Performs multiple text manipulations. Essentially a shortcut for typing them all. View source
     # below to see which methods are run.
     def remove_formatting
-      strip_html_tags.convert_accented_entities.convert_misc_entities.convert_misc_characters.to_ascii.collapse
+      strip_html_tags.
+      convert_german_umlauts.
+      convert_accented_entities.
+      convert_misc_entities.
+      convert_misc_characters.
+      to_ascii.collapse
     end
 
     # Removes HTML tags from text. This code is simplified from Tobias Luettke's regular expression
     # in Typo[http://typosphere.org].
     def strip_html_tags(leave_whitespace = false)
@@ -66,10 +73,24 @@
     # functionality please use <tt>to_ascii</tt>.
     def convert_accented_entities
       gsub(/&([A-Za-z])(grave|acute|circ|tilde|uml|ring|cedil|slash);/, '\1')
     end
 
+    # Converts German Umlauts to their transliteration according to German conventions.
+    def convert_german_umlauts
+      map = {
+        "Ä" => "ae",
+        "Ö" => "oe",
+        "Ü" => "ue",
+        "ä" => "ae",
+        "ö" => "oe",
+        "ü" => "ue",
+        "ß" => "ss"
+      }
+      gsub(/#{map.keys.join('|')}/) { |match| map[match] }
+    end
+
     # Converts HTML entities (taken from common Textile/RedCloth formattings) into plain text formats.
     # 
     # Note: This isn't an attempt at complete conversion of HTML entities, just those most likely
     # to be generated by Textile.
     def convert_misc_entities
@@ -172,6 +193,6 @@
         }
         Array.new(limit, "").collect{strong_alphanumerics[rand(61)]}.join
       end
     end
   end
-end
\ No newline at end of file
+end