.shpwd

#
#	.shpwd - local stuff to abbreviate PWD...
#
#ident	"@(#)HOME:.shpwd	37.2	22/02/23 17:37:12 (woods)"

# this version is for ancient shells without ${variable%pattern} et al
#
# it works entirely with global variables -- handling parameters is just more
# unnecessary overhead for this purpose
#
pwd_to_banner()
{
	case "${PWD}" in
	${HOME})
		# avoid the trailing slash, e.g.: sh://host/~/
		BANNER_PWD='~'
		;;
	${HOME}/*)
		BANNER_PWD='~'"`echo \"${PWD}\" | sed \"s|${HOME}||\"`"
		;;
	*)
		# trim just the leading slash to avoid "sh://host//dir"
		BANNER_PWD="`echo \"${PWD}\" | sed 's|^/||'`"
		;;
	esac
}

unset -f cd
cd ()
{
	# note this has to support various ksh without chdir and/or weird
	# "builtin" as $ENV won't be sourced until after .profile is finished,
	# and we try "cd" at the end of this file...
	#
	if type chdir >/dev/null 2>&1; then
		chdir ${1+"$@"}
	elif type command >/dev/null 2>&1; then
		command cd ${1+"$@"}
	else
		builtin cd ${1+"$@"}
	fi
	# assume $PWD is not maintained by the shell....
	PWD=`pwd`
	pwd_to_banner
	if [ "`ismpx`" = yes ] ; then
		eval myxban -l "\"$MYXBAN_L\""
	# there would be no point without setban, but we must test it anyway
	elif type setban > /dev/null ; then
		setban
	fi
}

# make sure BANNER_PWD is now set as we want it,
# but _ONLY_ for login shells!
#
case "$0" in
-*)
	cd .
	;;
esac