Simple chart parser with packing, implemented by Paula Buttery (pjb48).
Sample grammar and lexicon.  To run: 

java -jar ChartParser.jar

Bugs can be reported to pjb48.
  
Please note that this code is designed to illustrate the chart parsing
algorithm in the NLP lecture notes in a simple and straightforward way.  It is
not intended as a demonstration of how a fast chart parser can be built.
Before emailing us with suggestions for improvements to the Java code, please
look at the parsing code in the PET system (http://www.coli.uni-sb.de/pet/).  I
would be delighted to hear of verifiable improvements to PET.  Note
that the pet.tgz file is 8 Meg.

Ann Copestake
January 2005