lib/citeproc/extensions.rb in citeproc-0.0.1 vs lib/citeproc/extensions.rb in citeproc-0.0.2

@@ -5,11 +5,11 @@
     module DeepCopy  
       def deep_copy
         Hash[*map { |k,v| [
           k.is_a?(Symbol) ? k : k.respond_to?(:deep_copy) ? k.deep_copy : k.clone,
           v.is_a?(Symbol) ? v : v.respond_to?(:deep_copy) ? v.deep_copy : v.clone
-        ]}.flatten]
+        ]}.flatten(1)]
       end
     end
    
     module DeepFetch     
       def deep_fetch(*arguments)
@@ -21,10 +21,24 @@
         deep_fetch(*arguments)
       end
       
     end
     
+    # shamelessly copied from active_support
+    module SymbolizeKeys
+      def symbolize_keys
+        inject({}) do |options, (key, value)|
+          options[(key.to_sym rescue key) || key] = value
+          options
+        end
+      end
+      
+      def symbolize_keys!
+        replace(symbolize_keys)
+      end
+    end
+    
     module AliasMethods
       private
       def alias_methods(*arguments)
         raise ArgumentError, "wrong number of arguments (#{arguments.length} for 2 or more)" if arguments.length < 2
         method_id = arguments.shift
@@ -35,9 +49,10 @@
 end
 
 class Hash
   include CiteProc::Extensions::DeepCopy
   include CiteProc::Extensions::DeepFetch
+  include CiteProc::Extensions::SymbolizeKeys unless Hash.instance_methods.include?(:symbolize_keys)
 end
 
 # module Kernel
 #   include CiteProc::Extensions::AliasMethods
 # end