From 09b6db8c507b102dd20d7294cb7204d8f46eb77a Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Thu, 25 Jan 2024 10:38:57 -0800
Subject: EPUB writer: Add xml:lang to package element.

See #9372.
---
 src/Text/Pandoc/Writers/EPUB.hs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/Text')

diff --git a/src/Text/Pandoc/Writers/EPUB.hs b/src/Text/Pandoc/Writers/EPUB.hs
index 0bdc4c2bd..517e85a42 100644
--- a/src/Text/Pandoc/Writers/EPUB.hs
+++ b/src/Text/Pandoc/Writers/EPUB.hs
@@ -614,6 +614,7 @@ pandocToEPUB version opts doc = do
                              EPUB2 -> "2.0"
                              EPUB3 -> "3.0")
            ,("xmlns","http://www.idpf.org/2007/opf")
+           ,("xml:lang", epubLanguage metadata)
            ,("unique-identifier","epub-id-1")
            ] ++
            [("prefix","ibooks: http://vocabulary.itunes.apple.com/rdf/ibooks/vocabulary-extensions-1.0/") | version == EPUB3]) $
-- 
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