For JOE see [here](http://joe-editor.sourceforge.net/).  
For JOE project see [here](http://sourceforge.net/projects/joe-editor/).  
For original JOE syntax files see [here](http://joe-editor.hg.sourceforge.net/hgweb/joe-editor/joe-editor/file/tip/syntax).  

For a description about how JOEs jsf parser works, see the header of
[c.jsf](http://joe-editor.hg.sourceforge.net/hgweb/joe-editor/joe-editor/file/tip/syntax/c.jsf.in).
Another good resource might be
[jsf.jsf](http://joe-editor.hg.sourceforge.net/hgweb/joe-editor/joe-editor/file/tip/syntax/jsf.jsf.in).

Other Syntax Files
------------------

* [d.jsf](https://gist.github.com/1032393)