[epub3-dtbook-migrator] dc:language element is mandatory in OPF metadata

sbsdev · Oct 26, 2016 · 6bbf4e9 · 6bbf4e9
1 parent c2bb86c
commit 6bbf4e9
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/modules/sbs/epub3-dtbook-migrator/src/main/resources/xml/xslt/html-to-opf-metadata.xsl b/modules/sbs/epub3-dtbook-migrator/src/main/resources/xml/xslt/html-to-opf-metadata.xsl
@@ -13,6 +13,12 @@
 
             <dc:format id="format">EPUB3</dc:format>
 
+            <xsl:if test="not(/html:html/html:head/html:meta[lower-case(@name)='dc:language'])">
+                <dc:language>
+                    <xsl:value-of select="(/*/@xml:lang,'und')[1]"/>
+                </dc:language>
+            </xsl:if>
+
             <xsl:if test="not(/html:html/html:head/html:meta[lower-case(@name)='dc:title'])">
                 <dc:title>
                     <xsl:value-of select="/html:html/html:head/html:title/text()"/>