node.rb in actionpack-3.0.2

- old
+ new

@@ -36,22 +36,18 @@
     end
 
     private
 
       def keys_to_strings(hash)
-        hash.keys.inject({}) do |h,k|
-          h[k.to_s] = hash[k]
-          h
-        end
+        Hash[hash.keys.map {|k| [k.to_s, hash[k]]}]
       end
 
       def keys_to_symbols(hash)
-        hash.keys.inject({}) do |h,k|
+        Hash[hash.keys.map do |k|
           raise "illegal key #{k.inspect}" unless k.respond_to?(:to_sym)
-          h[k.to_sym] = hash[k]
-          h
-        end
+          [k.to_sym, hash[k]]
+        end]
       end
   end
 
   # The base class of all nodes, textual and otherwise, in an HTML document.
   class Node #:nodoc:
@@ -75,12 +71,10 @@
       @line, @position = line, pos
     end
 
     # Return a textual representation of the node.
     def to_s
-      s = ""
-      @children.each { |child| s << child.to_s }
-      s
+      @children.join()
     end
 
     # Return false (subclasses must override this to provide specific matching
     # behavior.) +conditions+ may be of any type.
     def match(conditions)