Doubly-linked list/Element definition: Difference between revisions

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@@ Line 97: / Line 97: @@
      slot data = [];
  enddefine;
-=={{header|Ruby}}==
-  class ListNode
-    attr_accessor :val, :nxt, :prv
-    def initialize(mval,mprv=nil,mnxt=nil)
-      self.val=mval
-      self.prv=mprv
-      prv.nxt=self if prv
-      self.nxt=mnxt
-      nxt.prv=self if nxt
-    end
-    def each(&b)
-      yield val
-      nxt.each(&b) if nxt
-      self
-    end
-    include Enumerable
-  end
 =={{header|Python}}==
@@ Line 138: / Line 119: @@
              yield c
              c = c.prev
+=={{header|Ruby}}==
+  class ListNode
+    attr_accessor :val, :nxt, :prv
+    def initialize(mval,mprv=nil,mnxt=nil)
+      self.val=mval
+      self.prv=mprv
+      prv.nxt=self if prv
+      self.nxt=mnxt
+      nxt.prv=self if nxt
+    end
+    def each(&b)
+      yield val
+      nxt.each(&b) if nxt
+      self
+    end
+    include Enumerable
+  end