WIP: title/main/marginal explizit

for i in `find -name '*.html'`; do sed -i -e's+body\(.\)\(uri='\''[^'\'']*'\''\)+body\1\n      \2,\n      title=~{:: title},\n      maincontent=~{:: .maincontent},\n      marginalcontent=~{:: .marginalcontent}+' $i; done