This directory contains yeti and ylex, version 4c010893cd39.
Yeti is released under BSD license without any warranties.
Copyright (c) 2004 Frank Pilhofer, yeti@fpx.de
Copyright (c) 2013 Steve Havelka, steve@arieslabs.com

Original but vanished source:

https://bitbucket.org/smh377/yeti
https://bitbucket.org/smh377/yeti/get/4c010893cd39.zip
