The XHTML index.html and content files should use dir="rtl" for Arabic content

The DITA Map has the xml:lang=“ar” set to it. Each topic also has the language set to Arabic. The XHTML generated for each topic contains dir=“rtl” set on the HTML root. But for the TOC the XSL:

        DITA-OT/plugins/org.dita.xhtml/xsl/map2htmtoc/map2htmtocImpl.xsl

in the template:

     <xsl:template name="generate-toc">

does not generate any attribute for the HTML root element. The “DITA-OT/plugins/org.dita.xhtml/xsl/xslhtml/dita2htmlImpl.xsl” stylesheet defines an XSL template called “bidi-area” which should probably be moved to a common XSLT and used for generting the TOC list of references as well.

[robander]

Double checked - the DITA specification has a normative reference to RFC 5646 for language identification: https://www.rfc-editor.org/rfc/rfc5646.txt

From section 2.1.1 in that RFC:

At all times, language tags and their subtags, including private use and extensions, are to be treated as case insensitive: there exist conventions for the capitalization of some of the subtags, but these MUST NOT be taken to carry meaning.

Thus, the tag “mn-Cyrl-MN” is not distinct from “MN-cYRL-mn” or “mN- cYrL-Mn” (or any other combination), and each of these variations conveys the same meaning: Mongolian written in the Cyrillic script as used in Mongolia.

[raducoravu]

Thanks Robert.