Currently I write my documentation directly as vim help files. Sometimes I need to generate other formats (e.g. PDF). My work flow is to copy the content of the help files and transform them into something I need. This is quite a tedious work, since I mostly have to add additional markup.
I like the approach of Markdown, which can (e.g. using Pandoc) be transformed into a variety of output formats. Unfortunately not vim help files. I am looking for a converter that takes a standard input format (e.g. XML, Markdown, reStructed Text, plain text, …) and outputs a vim help file. Or is there any other means of automatically generate vim help files without writing such a converter myself?