global stream toc; to be used later on as a referent
element biblio
output "%n"
|| "%n"
|| "My bookshop%n"
|| "%n"
|| "%n"
|| "My bookshop
%n%n"
output referent "toc" ; here we will (out)put our toc
open toc as referent "toc" ; and we initialise it
put toc "
Table of Contents
%n"
close toc
output "%c" ; continue parsing