From 01c280b5c28c65ee8ff66c1e5235288ad9b709dd Mon Sep 17 00:00:00 2001
From: Sergey Matveev <stargrave@stargrave.org>
Date: Fri, 18 Feb 2022 13:18:46 +0300
Subject: [PATCH] Single X-Categories header

---
 cmd/feed2mdir/main.go | 4 ++--
 doc/mail.texi         | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/cmd/feed2mdir/main.go b/cmd/feed2mdir/main.go
index 8ee07d0..70922b8 100644
--- a/cmd/feed2mdir/main.go
+++ b/cmd/feed2mdir/main.go
@@ -120,8 +120,8 @@ func main() {
 		for _, author := range item.Authors {
 			fd.WriteString("X-Author: " + author.Name + "\n")
 		}
-		for _, cat := range item.Categories {
-			fd.WriteString("X-Category: " + cat + "\n")
+		if len(item.Categories) > 0 {
+			fd.WriteString("X-Categories: " + strings.Join(item.Categories, ", ") + "\n")
 		}
 		fd.WriteString("\n")
 		what = base64.StdEncoding.EncodeToString([]byte(what))
diff --git a/doc/mail.texi b/doc/mail.texi
index 6e42273..672a11f 100644
--- a/doc/mail.texi
+++ b/doc/mail.texi
@@ -10,7 +10,7 @@ Subject: Item's subject
 Content-Type: text/html; charset=utf-8
 [X-URL: link presented in the item] (maybe multiple)
 [X-Author: author's name] (maybe multiple)
-[X-Category: item's category] (maybe multiple)
+[X-Categories: item's comma separated categories]
 
 Base64-encoded item's content. That is HTML as a rule.
 @end verbatim
-- 
2.44.0