implement 2 functions for customizing bash internal field separator

libraries/common

@@ -125,6 +125,18 @@ function printWarn() {
 	echo -e " ${MESSAGE_WARN} ${@}"
 }
 
+#-------------------------------------------------------------------------------
+# Restores original Internal Field Separator (IFS)
+#-------------------------------------------------------------------------------
+function restoreIFS() {
+	if [ "${ORGIFS:-unset}" != "unset" ]; then
+		IFS="${ORGIFS}"
+		unset ORGIFS
+	else
+		unset IFS
+	fi
+}
+
 #-------------------------------------------------------------------------------
 # Silently executes given command and saves its output to log file if enabled
 # Parameters: %command%
@@ -138,6 +150,20 @@ function run() {
 	return ${RESULT}
 }
 
+#-------------------------------------------------------------------------------
+# Saves original Internal Field Separator (IFS) and optionally sets new value
+# Parameters: %new_ifs%
+#-------------------------------------------------------------------------------
+function saveIFS() {
+	if [ "${IFS:-unset}" != "unset" ]; then
+		ORGIFS="${IFS}"
+	fi
+	local NEWIFS="${1}"
+	if isSet NEWIFS; then
+		IFS="${NEWIFS}"
+	fi
+}
+
 #-------------------------------------------------------------------------------
 # Returns a UNIX timestamp
 #-------------------------------------------------------------------------------