From 233020a2d01e9c4f0bfdd54657062312d2039a57 Mon Sep 17 00:00:00 2001
From: Michael Koziarski <michael@koziarski.com>
Date: Thu, 11 Sep 2008 16:03:38 +0200
Subject: [PATCH] Flesh out the parameterize method to support non-ascii text and underscores.

---
 activesupport/lib/active_support/inflector.rb |    2 +-
 activesupport/test/inflector_test_cases.rb    |    5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/activesupport/lib/active_support/inflector.rb b/activesupport/lib/active_support/inflector.rb
index e5f0063..8a917a9 100644
--- a/activesupport/lib/active_support/inflector.rb
+++ b/activesupport/lib/active_support/inflector.rb
@@ -257,7 +257,7 @@ module ActiveSupport
     #   <%= link_to(@person.name, person_path %>
     #   # => <a href="/person/1-donald-e-knuth">Donald E. Knuth</a>
     def parameterize(string, sep = '-')
-      string.gsub(/[^a-z0-9]+/i, sep).downcase
+      string.chars.normalize(:kd).to_s.gsub(/[^\x00-\x7F]+/, '').gsub(/[^a-z0-9_\-]+/i, sep).downcase
     end

     # Create the name of a table like Rails does for models to table names. This method
diff --git a/activesupport/test/inflector_test_cases.rb b/activesupport/test/inflector_test_cases.rb
index d399c90..8057809 100644
--- a/activesupport/test/inflector_test_cases.rb
+++ b/activesupport/test/inflector_test_cases.rb
@@ -144,7 +144,10 @@ module InflectorTestCases

   StringToParameterized = {
     "Donald E. Knuth"                     => "donald-e-knuth",
-    "Random text with *(bad)* characters" => "random-text-with-bad-characters"
+    "Random text with *(bad)* characters" => "random-text-with-bad-characters",
+    "Malmö"                               => "malmo",
+    "Garçons"                             => "garcons",
+    "Allow_Under_Scores"                  => "allow_under_scores"
   }

   UnderscoreToHuman = {
--
1.6.0.1