Simplify ActiveSupport::Multibyte and make it run on Ruby 1.9.

* Unicode methods are now defined directly on Chars instead of a handler
* Updated Unicode database to Unicode 5.1.0
* Improved documentation

1 files changed, 30 insertions, 6 deletions

diff --git a/activesupport/lib/active_support/multibyte.rb b/activesupport/lib/active_support/multibyte.rb
index 27c0d180a5..63c0d50166 100644
--- a/activesupport/lib/active_support/multibyte.rb
+++ b/activesupport/lib/active_support/multibyte.rb
@@ -1,9 +1,33 @@
-module ActiveSupport
+# encoding: utf-8
+
+require 'active_support/multibyte/chars'
+require 'active_support/multibyte/exceptions'
+require 'active_support/multibyte/unicode_database'
+
+module ActiveSupport #:nodoc:
   module Multibyte #:nodoc:
-    DEFAULT_NORMALIZATION_FORM = :kc
+    # A list of all available normalization forms. See http://www.unicode.org/reports/tr15/tr15-29.html for more
+    # information about normalization.
     NORMALIZATIONS_FORMS = [:c, :kc, :d, :kd]
-    UNICODE_VERSION = '5.0.0'
-  end
-end
 
-require 'active_support/multibyte/chars'
+    # The Unicode version that is supported by the implementation
+    UNICODE_VERSION = '5.1.0'
+
+    # The default normalization used for operations that require normalization. It can be set to any of the
+    # normalizations in NORMALIZATIONS_FORMS.
+    #
+    # Example:
+    #   ActiveSupport::Multibyte.default_normalization_form = :c
+    mattr_accessor :default_normalization_form
+    self.default_normalization_form = :kc
+
+    # The proxy class returned when calling mb_chars. You can use this accessor to configure your own proxy
+    # class so you can support other encodings. See the ActiveSupport::Multibyte::Chars implementation for
+    # an example how to do this.
+    #
+    # Example:
+    #   ActiveSupport::Multibyte.proxy_class = CharsForUTF32
+    mattr_accessor :proxy_class
+    self.proxy_class = ActiveSupport::Multibyte::Chars
+  end
+end
\ No newline at end of file