vendor/rails/activesupport/lib/active_support/xml_mini.rb

   1 module ActiveSupport
   2   # = XmlMini
   3   #
   4   # To use the much faster libxml parser:
   5   #   gem 'libxml-ruby', '=0.9.7'
   6   #   XmlMini.backend = 'LibXML'
   7   module XmlMini
   8     extend self
   9
  10     attr_reader :backend
  11     delegate :parse, :to => :backend
  12
  13     def backend=(name)
  14       if name.is_a?(Module)
  15         @backend = name
  16       else
  17         require "active_support/xml_mini/#{name.to_s.downcase}.rb"
  18         @backend = ActiveSupport.const_get("XmlMini_#{name}")
  19       end
  20     end
  21
  22     def with_backend(name)
  23       old_backend, self.backend = backend, name
  24       yield
  25     ensure
  26       self.backend = old_backend
  27     end
  28   end
  29
  30   XmlMini.backend = 'REXML'
  31 end