That&#x27;s a generator for docopt parsers, written in python, targeting C. The closest docopt (variant) in C that I know of is the one I wrote: <a href="https:&#x2F;&#x2F;github.com&#x2F;jaroslov&#x2F;docoptc" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;jaroslov&#x2F;docoptc</a> . Although, at best, I&#x27;d say that code is &quot;looking for a maintainer&quot;.