Bidirectional Override (bdo) Element This is the XML Schema BDO Element module for XHTML This modules declares the element 'bdo' and 'dir' attributes, Used to override the Unicode bidirectional algorithm for selected fragments of text. Bidirectional text support includes both the bdo element and the 'dir' attribute. $Id: xhtml-bdo-1.xsd,v 1.1 2018/03/20 04:13:57 plehegar Exp $ This import brings in the XML namespace attributes The module itself does not provide the schemaLocation and expects the driver schema to provide the actual SchemaLocation.