.
g/BEGIN/ka
g/END/kb
1,'ad
'b,$d
%s/^- //
%s,<time>\(.*\)</time>,time: \1|,
%s, - \[\(.*\)\],title: \1|,
%s,(\(.*\))$,source: \1|link: \1|,
%s/html/md/
%s/|/\
/g
1,$w /dev/stdout