new helpers file

Author: MattKeeley

helpers.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"unicode"
+)
+
+func contains(slice []int, value int) bool {
+	for _, v := range slice {
+		if v == value {
+			return true
+		}
+	}
+	return false
+}
+
+func removeNonPrintableAscii(input string) string {
+	var resultBuilder []rune
+
+	for _, char := range input {
+		if unicode.IsPrint(char) && char >= 32 && char != 127 {
+			resultBuilder = append(resultBuilder, char)
+		}
+	}
+
+	return string(resultBuilder)
+}