Grammar Editor Changelog

What's new in Grammar Editor 1.1b

Jul 28, 2010
  • Feature: Users may now explicitly signify epsilon productions in a grammar by placing a dash ('-') on the right side. They can still implicitly signify epsilon productions by listing nothing on the right side. (Thus, ``A -> a A |'' and ``A -> a A | -'' mean the same thing.)
  • Feature: The parse tree display now explicitly signifies epsilon-productions in the trees, using a half-line terminating in an X.