Merged updates from trunk into stable branch

[feedcatcher.git] / vendor / rails / activesupport / lib / active_support / xml_mini.rb

diff --git a/vendor/rails/activesupport/lib/active_support/xml_mini.rb b/vendor/rails/activesupport/lib/active_support/xml_mini.rb
new file mode 100644 (file)
index 0000000..ccd1349
--- /dev/null
+++ b/vendor/rails/activesupport/lib/active_support/xml_mini.rb
@@ -0,0 +1,31 @@
+module ActiveSupport
+  # = XmlMini
+  #
+  # To use the much faster libxml parser:
+  #   gem 'libxml-ruby', '=0.9.7'
+  #   XmlMini.backend = 'LibXML'
+  module XmlMini
+    extend self
+
+    attr_reader :backend
+    delegate :parse, :to => :backend
+
+    def backend=(name)
+      if name.is_a?(Module)
+        @backend = name
+      else
+        require "active_support/xml_mini/#{name.to_s.downcase}.rb"
+        @backend = ActiveSupport.const_get("XmlMini_#{name}")
+      end
+    end
+
+    def with_backend(name)
+      old_backend, self.backend = backend, name
+      yield
+    ensure
+      self.backend = old_backend
+    end
+  end
+
+  XmlMini.backend = 'REXML'
+end