MGFp is open parser implementation for the Mascot Generic Format (MGF). It uses bison/flex to define a formal grammar and provides the necessary C++ adapter classes. The software is provided under a BSD license.
Development on SF.net has ceased. You can find the project at http://kirchnerlab.github.com/libmgf/
CHIMP aims to provide a complete suite of tools for the investigation and modeling of chemical systems. It currently is able to parse chemical reaction mechanisms and run kinetic Monte Carlo simulations on the reacting system.