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Subject: Conversion: xml:lang not added to root element of Epub/XHTML1/XHTML5 files


Can the official XSLT converstion files for Epub/XHTML5/XHTML1 be updated to add the xml:lang attribute to the root element of all HTML documents?

And/Or how can I at least make it happen in my local version of the XSLT files?

If XSLT has technical limiations that prevents this behavior, then at the very least - as a workaround, xml:lang should in addition to be added to the (in this case) HTML <section> elemewnt, also be added to the <title> element. (Or else, the title element would be 'hanging in the air', as an element without language tag assigned.)


The (x)HTML XSLT conversion sheets for DocBook fails to add a (xml:)lang) attribute to the <html> element. This happens for Epub, XHTML1 and XHTMl5 conversion. (I have not tested HTML conversion.)

For instance, if I (1) create an DocBook article document, adding xml:lang="en" to the DocBook <article> element and then (2) apply converstion to XHTML5 using the docbook.xsl file found at cdn.docbook.org [1], then, (3) the end result is a XHTML5 file where xml:lang is not applied to <html> (and not to <body>, for that matter and not, as a workaround, to <head> or <title> either). The first occurrence of xml:lang is found only on the <section> element.

By the way: I consider this behavior a bug. And I belive that the reason for this bug is mechanistic conversion of the DocBook root element (in this case: <article>) to the HTML element that “we” have decided to correspond to the root element (for Docbook <article> documents, then ”we” have decided that the corresponding HTML element is the HTML <section> element). The correct behavior ought to have been to always add the xml:lang attribute of the Docbook root element (in this case: <article>), to the HTML root element of (<html>).

[1] http://cdn.docbook.org/release/xsl/current/xhtml5/docbook.xsl
leif halvard silli

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