# File lib/maruku/structures.rb, line 151
        def initialize(s=nil)
                super(:document)
                @doc       = self

                self.refs = {}
                self.footnotes = {}
                self.footnotes_order = []
                self.abbreviations = {}
                self.ald = {}
                self.latex_required_packages = []
                
                parse_doc(s) if s 
        end