http://code.activestate.com/recipes/tags/follow/2015-12-22T10:49:21-08:00ActiveState Code Recipes2015-12-22T10:49:21-08:00Narayana Chikkamhttp://code.activestate.com/recipes/users/4174427/http://code.activestate.com/recipes/579140-follow-sets-construction/

<p style="color: grey"> Python recipe 579140 by <a href="/recipes/users/4174427/">Narayana Chikkam</a> (<a href="/recipes/tags/cfg/">cfg</a>, <a href="/recipes/tags/first/">first</a>, <a href="/recipes/tags/follow/">follow</a>, <a href="/recipes/tags/nullable/">nullable</a>). Revision 2. </p> <p>Language Processors: FOLLOW(A) = {t | (t is a terminal and S ⇒+ α A t β) or (t is EOF and S ⇒∗ αA)}</p>