1. If you use an underline character in stead of the hyphen for labels, they
won't split at the end of a line.
2. Labels are case-sensitive (as I keep rediscovering!). I've found that
sometimes my XPL programs are easier to read and revise if the labels are in
uppercase or in a mixture, as in <<LB_MainLoop>> or <<LB_WHERE>>.
BTW (I'm new to the group) -- has anyone done a macro that changes mailing
list listings to XPL?