rpath: read config file
tty: the interface it's based on curses so it needs to do operations on tty
proc/exec: this is needed to actually launch the external program after
selecting the link
OK jca@ after his suggestions
based on a submission by seb@gosh.todesplanet.de
urlview is a curses program for extracting URLs from text files and
displaying a menu from which you can select a specific URL to view using
your favorite browser program.