Today I have just released the first version of Korte.
KorTE is a Template Engine for Multiplatform Kotlin 1.3.
It is mostly compatible with twig, django, atpl.js and liquid. Can be used from any Kotlin target including JS, JVM and Kotlin/Native. And includes a couple of artifacts to use it easily from Ktor and Vert.x.
It supports template inheritance, blocks, tags, functions, advanced expressions, filters and calling suspend methods and accessing properties out of the box.
<html><head></head><body>
{ % block content % }default content{ % endblock % }
</body></html>
{ % extends "_base.html" % }
{ % block content % }
<div>{ % block left % }default left column{ % endblock % }</div>
<div>{ % block right % }default right column{ % endblock % }</div>
{ % endblock % }
{ % extends "_two_columns.html" % }
{ % block left % }
My left column
{ % endblock % }
{ % block right % }
My prefix { { parent() } } with additional content
{ % endblock % }
It is fully documented here: https://korlibs.soywiz.com/korte/
And the source code lives here: https://github.com/korlibs/korte
And there is an online demo running it in javascript: https://korlibs.github.io/korte-samples/korte-sample-browser/web/