Sub Articulo 18.0

 My question  is  regarding listing typesetting; I   am looking
 into a way  to format some listing  like some  "a2ps" pages (or  other
 similar usefull  C,  Tcl/Tk and  Perl text  print  formatter),  ans am
 wondering how  to do it without having  to include a  PS of the "a2ps"