Start supporting numbers and strings

src/regex.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"log"
+	"regexp"
+)
+
+func makeRegex(str string) *regexp.Regexp {
+	Compile, err := regexp.Compile("^(" + str + ")$")
+	if err != nil {
+		log.Fatal(err)
+	}
+	return Compile
+}