begin implementing separate metadata parsing

internal/util/queue.go

@@ -0,0 +1,26 @@
+package util
+
+// Enqueue appends an int to the queue
+func Enqueue(queue []int, element int) []int {
+	queue = append(queue, element)
+	return queue
+}
+
+// Dequeue pops the first element of the queue
+func Dequeue(queue []int) (int, []int) {
+	element := queue[0] // The first element is the one to be dequeued.
+	if len(queue) == 1 {
+		tmp := []int{}
+		return element, tmp
+	}
+	return element, queue[1:] // Slice off the element once it is dequeued.
+}
+
+func Tail(queue []int) int {
+	l := len(queue)
+	if l == 0 {
+		return -1
+	} else {
+		return l - 1
+	}
+}