1 files changed, 93 insertions, 0 deletions
diff --git a/feedback_defs.sh b/feedback_defs.sh
new file mode 100755
index 0000000..791308b
--- /dev/null
+++ b/feedback_defs.sh
@@ -0,0 +1,93 @@
+#
+# quit -- Display a message and terminate abnormally.
+#
+# Calling Sintax:
+#	quit <pformat> [ <parg> ... ]
+#
+# Where:
+#	<pformat>	Feedback message. It can contain printf() conversion
+#			specifications.
+#
+#	<parg>		Argument operand printed under the control of the
+#			<pformat> operand.
+quit ()
+{
+	quitparms=
+	if [ $# -gt 1 ]; then
+		quitparm=2
+		while test $quitparm -le $#; do
+			quitparms="$quitparms \"\$$quitparm\""
+			quitparm=`expr $quitparm + 1`
+		done
+	fi
+	eval "printf \"$1\n\" $quitparms"
+	exit 1
+}
+
+
+
+#
+# fbck -- Display a feedback message.
+#
+# Calling Sintax:
+#	fbck <pformat> [ <parg> ... ]
+#
+# Where:
+#	<pformat>	Feedback message. It can contain printf() conversion
+#			specifications.
+#
+#	<parg>		Argument operand printed under the control of the
+#			<pformat> operand.
+#
+# Remarks:
+#	The message is displayed only if the environment variable 'verbose' has
+# the 'yes' value.
+#
+fbck ()
+{
+	fbckparms=
+	if [ $# -gt 1 ]; then
+		fbckparm=2
+		while test $fbckparm -le $#; do
+			fbckparms="$fbckparms \"\$$fbckparm\""
+			fbckparm=`expr $fbckparm + 1`
+		done
+	fi
+	test "$verbose" = "yes" && eval "printf \"$1\n\" $fbckparms"
+}
+
+
+
+#
+# prompt - Ask the user for the value to assign to an environment variable.
+#
+# Calling Sintax:
+#	prompt <varnam> <pformat> [ <parg> ... ]
+#
+# Where:
+#	<varnam>	Name of the environment variable which is going to
+#			receive the user introduced value.
+#
+#	<pformat>	Prompt to display to the user. It can contain printf()
+#			conversion specifications.
+#
+#	<parg>		Argument operand printed under the control of the
+#			<pformat> operand.
+#
+# Remarks:
+#	The <varname> variable is not exported.
+#
+prompt ()
+{
+	promptparms=
+	if [ $# -gt 2 ]; then
+		promptparm=3
+		while test $promptparm -le $#; do
+			promptparms="$promptparms \"\$$promptparm\""
+			promptparm=`expr $promptparm + 1`
+		done
+	fi
+	eval "printf \"$2\" $promptparms"
+	read promptresponse
+	eval $1="$promptresponse"
+}