From the website [L1 ]:
Caius is written in ITcl and includes interfaces to Expect and Selenium. Written by tobijk.
ak - 2014-11-09 18:15:40
It is said to contain a pure Tcl package for processing Markdown.
dbohdan 2014-11-10: Indeed. See https://github.com/tobijk/caius/tree/master/lib/markdown .
APN A fork that limps along on Windows can be found at https://github.com/apnadkarni/caius . Hopefully to be merged upstream at some point.