indexing
	description: "General interface for documents"
	license: "MIT license (see ../license.txt)"
	author: "Beat Strasser <beat@stradax.net>"
	date: "$Date$"
	revision: "$Revision$"

deferred class
	P2P_DOCUMENT

inherit
	ANY
		undefine
			out
		end

feature {NONE} -- Initialization

	parse_from_string (source: STRING) is
			-- Parse document from a string
		deferred
		end

feature -- Output

	out: STRING is
			-- String representation
		deferred
		ensure then
			Result_set: Result /= Void and (not is_valid implies Result.count = 0)
		end

feature -- Status report

	is_valid: BOOLEAN

end