Adding upstream version 5.2.37.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

examples/functions/notify.bash

@@ -0,0 +1,77 @@
+#
+#  Chet Ramey <chet.ramey@case.edu>
+#
+#  Copyright 1992 Chester Ramey
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation; either version 2, or (at your option)
+#   any later version.
+#
+#   TThis program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program; if not, write to the Free Software Foundation,
+#   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+trap _notify CHLD
+NOTIFY_ALL=false
+unset NOTIFY_LIST
+unalias false
+
+false()
+{
+	return 1
+}
+
+_notify ()
+{
+	local i j
+	local newlist=
+
+	if $NOTIFY_ALL
+	then
+		return		# let bash take care of this itself
+	elif [ -z "$NOTIFY_LIST" ]; then
+		return
+	else
+		set -- $NOTIFY_LIST
+		for i in "$@"
+		do
+			j=$(jobs -n %$i)
+			if [ -n "$j" ]; then
+				echo "$j"
+				jobs -n %$i >/dev/null
+			else
+				newlist="newlist $i"
+			fi
+		done
+		NOTIFY_LIST="$newlist"
+	fi
+}
+
+notify ()
+{
+	local i j
+
+	if [ $# -eq 0 ]; then
+		NOTIFY_ALL=:
+		set -b
+		return
+	else
+		for i in "$@"
+		do
+			# turn a valid job spec into a job number
+			j=$(jobs $i)
+			case "$j" in
+			[*)	j=${j%%]*}
+				j=${j#[}
+				NOTIFY_LIST="$NOTIFY_LIST $j"
+				;;
+			esac
+		done
+	fi
+}