CHANGED DEFAULT: Don't parse YAML input by default, but keep it available as an easy option [DHH]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4157 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

 *SVN*
 
+* CHANGED DEFAULT: Don't parse YAML input by default, but keep it available as an easy option [DHH]
+
 * Add additional autocompleter options [aballai, Thomas Fuchs]
 
 * Fixed fragment caching of binary data on Windows #4493 [bellis@deepthought.org]

actionpack/lib/action_controller/base.rb

@@ -265,11 +265,9 @@ class Base
     # The param_parsers hash lets you register handlers wich will process the http body and add parameters to the 
     # @params hash. These handlers are invoked for post and put requests.
     #
-    # By default application/xml and application/x-yaml are enabled. For application/xml, a XmlSimple class with
-    # the same param name as the root will be instanciated in the @params. This allows XML requests to mask themselves
-    # as regular form submissions, so you can have one action serve both regular forms and web service requests. For
-    # application/x-yaml, the YAML document is merged into the parameters and appears to the application as if the
-    # YAML elements were simply form submissions.
+    # By default application/xml is enabled. A XmlSimple class with the same param name as the root will be instanciated 
+    # in the @params. This allows XML requests to mask themselves as regular form submissions, so you can have one
+    # action serve both regular forms and web service requests.
     # 
     # Example of doing your own parser for a custom content type:
     #
@@ -283,9 +281,13 @@ class Base
     # in params[:r][:name] for "David" instead of params[:name]. To get the old behavior, you can 
     # re-register XmlSimple as application/xml handler ike this:
     #
-    #   ActionController::Base.param_parsers[Mime::XML]  = 
+    #   ActionController::Base.param_parsers[Mime::XML] = 
     #     Proc.new { |data| XmlSimple.xml_in(data, 'ForceArray' => false) }
-    @@param_parsers = { Mime::XML => :xml_simple, Mime::YAML => :yaml }
+    #
+    # A YAML parser is also available and can be turned on with:
+    #
+    #   ActionController::Base.param_parsers[Mime::YAML] = :yaml
+    @@param_parsers = { Mime::XML => :xml_simple }
     cattr_accessor :param_parsers 
 
     # Template root determines the base from which template references will be made. So a call to render("test/template")