From 9920e077ebb5f5bc176bc7182b76365670932615 Mon Sep 17 00:00:00 2001
From: Jason Streifling <jason@streifling.com>
Date: Tue, 15 Oct 2024 18:46:19 +0200
Subject: [PATCH] Add hasAlternateDuplicateLinks check to entry

---
 entry.go | 3 +++
 feed.go  | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/entry.go b/entry.go
index 044af1e..0589295 100644
--- a/entry.go
+++ b/entry.go
@@ -104,6 +104,9 @@ func (e *Entry) Check() error {
 			return fmt.Errorf("link element %v of entry %v: %v", i, e.ID.URI, err)
 		}
 	}
+	if hasAlternateDuplicateLinks(e.Links) {
+		return fmt.Errorf("links with with a rel attribute value of \"alternate\" and duplicate type and hreflang attribute values found in entry %v", e.ID.URI)
+	}
 
 	if e.Published != nil {
 		if err := e.Published.Check(); err != nil {
diff --git a/feed.go b/feed.go
index f5c3f10..0b49775 100644
--- a/feed.go
+++ b/feed.go
@@ -170,7 +170,7 @@ func (f *Feed) Check() error {
 		}
 	}
 	if hasAlternateDuplicateLinks(f.Links) {
-		return errors.New("links with with a rel attribute value of \"alternate\" and duplicate type and hreflang attribute values found")
+		return fmt.Errorf("links with with a rel attribute value of \"alternate\" and duplicate type and hreflang attribute values found in feed %v", f.ID.URI)
 	}
 
 	if f.Logo != nil {