Homepage: https://github.com/davazp/x-html-template
In this sense, it is similar to YHTML-Template, but the expressions do not support full Lisp expressions, as it is intended to be used for non-programmers.
x-html-template
x-html-template is a HTML template library, forked from Edi Weitz's HTML-TEMPLATE and mostly compatible with it. It adds support for computed expressions.