diff --git a/strings.go b/strings.go
index 8278683..14757fe 100644
--- a/strings.go
+++ b/strings.go
@@ -6,6 +6,18 @@ import (
 	"strings"
 )
 
+// BuildWhitelistForStringSanitisation transfroms a slice of whitelisted substrings into a hashtable
+func BuildWhitelistForStringSanitisation(wl []string) map[string]string {
+	whitelist := map[string]string{}
+
+	for _, c := range wl {
+		whitelist[c] = c
+	}
+
+	return whitelist
+
+}
+
 // FirstCharacterToUppercase converts the first character of a string to uppercase
 func FirstCharacterToUppercase(s string) string {
 	if len(s) == 0 {