hswg: make AttrList return nil for missing attrs

And update copyright years.
This commit is contained in:
Přemysl Eric Janouch 2022-02-28 05:02:17 +01:00
parent bafd5ef221
commit 7a2ea02c8d
Signed by: p
GPG Key ID: A0420B94F92B9493
2 changed files with 5 additions and 1 deletions

View File

@ -1,4 +1,4 @@
Copyright (c) 2018 - 2021, Přemysl Eric Janouch <p@janouch.name>
Copyright (c) 2018 - 2022, Přemysl Eric Janouch <p@janouch.name>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.

View File

@ -49,6 +49,10 @@ func (m *Metadata) Attr(name string) string {
// AttrList is similar to Attr, but splits the result at commas,
// and trims whitespace around array elements.
func (m *Metadata) AttrList(name string) []string {
if !m.Attributes.Has(name) {
return nil
}
res := strings.Split(m.Attr(name), ",")
for i := range res {
res[i] = strings.TrimSpace(res[i])