Line breaks marker

End of line marker in verbatim texts

from the wizard himself:

\startreusableMPgraphic{return}
    drawarrow
      (0,0)--
      (1EmWidth,0)--
      (1EmWidth,-.5ExHeight)--
      (.5EmWidth,-.5ExHeight) ;
\stopreusableMPgraphic

\definesymbol[return][\reuseMPgraphic{return}]

\setupcolors[state=start]

\def\vcrlf{\symbol[return]\crlf\strut\kern1em\strut\ignorespaces}

\setuptyping[TEX][escape=yes]

\startTEX
test test test /BTEX\vcrlf/ETEX test test
\stopTEX

looks like this: