Added basic transliteration with IConv.

lib/slugtastic.rb

@@ -2,8 +2,12 @@ require "slugtastic/version"
 require "slugtastic/model_additions"
 require "slugtastic/railtie" if defined? Rails
 
+# TODO: iconv will be deprecated in the future.
+require 'iconv'
+
 module Slugtastic
   def self.generate_slug(string)
-    string.downcase.gsub(/ /, '_').gsub(/[^a-z0-9\-_]/, '') unless string.nil?
+    return if string.nil?
+    Iconv.iconv("ASCII//TRANSLIT//IGNORE", "UTF-8", string).join.downcase.gsub(/ /, '_').gsub(/[^a-z0-9\-_]/, '')
   end
 end

spec/slugtastic_spec.rb

@@ -3,6 +3,10 @@ require 'spec_helper'
 
 describe Slugtastic do
   describe ".generate_slug" do
+    it "returns empty if the input string is empty" do
+      Slugtastic.generate_slug("").should eq ""
+    end
+
     it "generates a slug from a simple string" do
       Slugtastic.generate_slug("A simple string.").should eq "a_simple_string"
     end
@@ -14,5 +18,10 @@ describe Slugtastic do
     it "handles strings with other characters in them" do
       Slugtastic.generate_slug("A string, with /All sorts!").should eq "a_string_with_all_sorts"
     end
+
+    it "handles basic transliteration" do
+      Slugtastic.generate_slug("Un été À la maison.").should eq "un_ete_a_la_maison"
+      Slugtastic.generate_slug("Ātri brūna lapsa").should eq "atri_bruna_lapsa"
+    end
   end
 end