From 8c63be3b9ec4a94c7c79347a1c917c257311205f Mon Sep 17 00:00:00 2001
From: g41797 <g41797@gmail.com>
Date: Tue, 10 Dec 2024 16:06:00 +0200
Subject: [PATCH] Check that the name does not start with a hyphen.

---
 name.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/name.go b/name.go
index 5a85b2d..e655dcf 100644
--- a/name.go
+++ b/name.go
@@ -33,6 +33,8 @@ func checkName(s string) error {
 	switch {
 	case len(s) == 0:
 		return NameError{s, ErrEmpty}
+	case s[0] == '-':
+		return NameError{s, ErrBadChar}
 	case len(s) >= 200:
 		return NameError{s, ErrTooLong}
 	case !containsOnly(s, NameChars):