attribute name and corresponding value, after converting that
 text to a String (if necessary), and after performing any encoding <span class="changed_modified_2_2">or
 escaping</span> appropriate to the markup language being rendered. <span class="changed_modified_2_2">When rendering
 in a WWW environment, the escaping conventions established in the W3C URI spec document
 &lt;<a href="http://www.w3.org/Addressing/URL/uri-spec.html">http://www.w3.org/Addressing/URL/uri-spec.html</a>&gt;
 must be followed. I