safemode? is valid?      

.[thumb] <a href="xxx.jpg" rel="lightbox[xxx]" title="nejaky title.."> [* img.jpg .(nejakej alt) *] </a>

Text formatted with Texy:

Generated HTML code:

<div class="thumb"><a href="xxx.jpg" rel="lightbox[xxx]"
title="nejaky title.."><br>
<img src="/images/img.jpg" alt="nejakej alt"><br>
</a></div>

Verze Texy: 3.2.1 (konfigurace)