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startrule: network_object(s) network_object: /network:(\w+)/ '=' '{' ... host_range: /host:\w+/ '=' '{' 'range' '=' ip '-' ip '}' host: /host:\w+/ '=' '{' 'ip' '=' ip(s) '}' ip: / \d{1,3} (?:\.\d{1,3}){3} ;? /x