% pandoc -f latex+raw_tex -t markdown \emph{Hi \foo{there}} ^D *Hi \foo{there}*
% pandoc -f latex -t markdown \emph{Hi \foo{there}} ^D *Hi*
% pandoc -f html+raw_html -t markdown <em>Hi <blink>there</blink></em> ^D *Hi <blink>there</blink>*
% pandoc -f html -t markdown <em>Hi <blink>there</blink></em> ^D *Hi there*