Made change

utils.go

@@ -0,0 +1,28 @@
+package parser
+
+import "regexp"
+func doCheck(pattern string, arg string) (bool, error){
+		match, err := regexp.MatchString(pattern, arg)
+		if err != nil {
+			return false, err
+		} 
+
+		if match {
+			return true, nil
+		} else {
+			return false, nil
+		}
+}
+
+func isFlag(arg string) (bool, error) {
+	return doCheck(flagRegex, arg)
+}
+
+
+func isInt(arg string) (bool, error) {
+	return doCheck(intRegex, arg)
+}
+
+func isFloat(arg string) (bool, error) {
+	return doCheck(floatRegex, arg)
+}