lean on Inflector transliteration

Author: danneu

lib/slug.rb

@@ -11,14 +11,11 @@ def self.for(string)
     str.gsub!(/^\s+|\s+$/, '')
     str.downcase!
 
-    from = "àáäâèéëêìíïîòóöôùúüûñç·/_,:;."
-    to   = "aaaaeeeeiiiioooouuuunc-------"
-
-    idx = 0
-    from.each_char do |c|
-      str.gsub!(c, to[idx])
-      idx += 1
-    end
+    # The characters we want to replace with a hyphen
+    str.tr!("·/_,:;.", "\-")
+
+    # Convert to ASCII or remove if transliteration is unknown.
+    str = ActiveSupport::Inflector.transliterate(str, '')
 
     str.gsub!(/[^a-z0-9 -]/, '')
     str.gsub!(/\s+/, '-')

spec/components/slug_spec.rb

@@ -35,5 +35,11 @@
     Slug.for("...hello").should == "hello"
   end
 
+  it 'handles our initial transliteration' do
+    from = "àáäâčďèéëěêìíïîľĺňòóöôŕřšťůùúüûýžñç"
+    to   = "aaaacdeeeeeiiiillnoooorrstuuuuuyznc"
+    Slug.for(from).should == to
+  end
+
 end