Welcome to pyPEG!
pyPEG's documentation is here: http://fdik.org/pyPEG
Projects done with pyPEG
Please feel free to append your projects to that list!
C parser for Python following ISO/IEC 9899:2011
YML implements the idea not to need to define a grammar first when you want to use a Domain Specific Language. For that purpose, YML is being translated into XML.
This is a compiler being used for automated software development. I.e. it was used in a project to generate HMI code out of the IEC source code of a 300 kLOC controlling program for a production machine.