ptgdp: Define function for line validation

ptgdp

@@ -133,6 +133,14 @@ validatedeps() {
 	done
 	return 0
 }
+validateline() {
+	# $1: A line to check for comments or whitespace
+	local linenows=${1//[[:space:]]}
+	if ! [ "${1#\#}" = "$1" ] || [ -z "$linenows" ]; then
+		return 1
+	fi
+	return 0
+}
 sanitize() {
 	[ -z "$1" ] && return 1 # String to strip special chars from
 	_return="${1//[^ a-zA-Z0-9\[\]|()_-]/}"
@@ -230,22 +238,13 @@ playlist() {
 	while read line; do
 		# Strictly speaking, this removes all whitespace from the line
 		# While not *exactly* what I'm looking for, it's sufficient for trimming whitespace lines
-		local linenows=${line//[[:space:]]}
+		validateline "$line" || continue
-		if ! [ "${line#\#}" = "$line" ] || [ -z "$linenows" ]; then
-			continue
-		fi
-		unset linenows
 		maxlines+=1
 	done < "$1"
 	log "Enqueued playlist with $maxlines lines"
 	while read line; do
 		[ -z "$line" ] && continue
-		# Ignore comments and blank lines
+		validateline "$line" || continue
-		local linenows=${line//[[:space:]]}
-		if ! [ "${line#\#}" = "$line" ] || [ -z "$linenows" ]; then
-			continue
-		fi
-		unset linenows
 		rm "$_tmpfile"* > /dev/null 2>&1
 		# Do the do
 		cachesong "$line"