diff --git a/stateContents.go b/stateContents.go
new file mode 100644
index 0000000..b9690ec
--- /dev/null
+++ b/stateContents.go
@@ -0,0 +1,21 @@
+package main
+
+import "slices"
+
+type stateContents []int // Represents the contents of the current state - character classes can have multiple contents, which is why it is represented as a slice
+
+func newContents() stateContents {
+	toReturn := stateContents{}
+	return toReturn
+}
+
+// Returns true if c contains the given value
+func (c stateContents) contains(val int) bool {
+	return slices.Contains(c, val)
+}
+
+// Appends val to c
+func (c *stateContents) append(val int) {
+	*c = append(*c, val)
+	return
+}