Updated the json date regex to recognize xmlschema formatted date times during...

Updated the json date regex to recognize xmlschema formatted date times during json decoding. [#3031 state:resolved]
Signed-off-by: NSantiago Pastorino and Emilio Tagua <santiago+emilioe@wyeworks.com>

activesupport/lib/active_support/json/encoding.rb

@@ -23,7 +23,7 @@ class << self
 
   module JSON
     # matches YAML-formatted dates
-    DATE_REGEX = /^(?:\d{4}-\d{2}-\d{2}|\d{4}-\d{1,2}-\d{1,2}[ \t]+\d{1,2}:\d{2}:\d{2}(\.[0-9]*)?(([ \t]*)Z|[-+]\d{2}?(:\d{2})?))$/
+    DATE_REGEX = /^(?:\d{4}-\d{2}-\d{2}|\d{4}-\d{1,2}-\d{1,2}[T \t]+\d{1,2}:\d{2}:\d{2}(\.[0-9]*)?(([ \t]*)Z|[-+]\d{2}?(:\d{2})?))$/
 
     # Dumps object in JSON (JavaScript Object Notation). See www.json.org for more info.
     def self.encode(value, options = nil)

activesupport/test/json/decoding_test.rb

@@ -21,6 +21,10 @@ class TestJSONDecoding < ActiveSupport::TestCase
     %({"a": "2007-01-01 01:12:34"})              => {'a' => "2007-01-01 01:12:34"},
     # invalid date
     %({"a": "1089-10-40"})                       => {'a' => "1089-10-40"},
+    # xmlschema date notation
+    %({"a": "2009-08-10T19:01:02Z"})             => {'a' => Time.utc(2009, 8, 10, 19, 1, 2)},
+    %({"a": "2009-08-10T19:01:02+02:00"})        => {'a' => Time.utc(2009, 8, 10, 17, 1, 2)},
+    %({"a": "2009-08-10T19:01:02-05:00"})        => {'a' => Time.utc(2009, 8, 11, 00, 1, 2)},
     # needs to be *exact*
     %({"a": " 2007-01-01 01:12:34 Z "})          => {'a' => " 2007-01-01 01:12:34 Z "},
     %({"a": "2007-01-01 : it's your birthday"})  => {'a' => "2007-01-01 : it's your birthday"},