Have you ever wondered if objects can be created out of thin air? Yes, they can and 3D printing makes that possible. 3D printing is a process that is used to make 3 dimensional objects. 3D printed objects can be created from plastic, nylon, metal and hundred other various types of material.
GPPG is a generator for parsers which takes input like YACC/BISON and outputs thread-safe C# parsers... uses a FreeBSD-style license, and there is an accompanying scanner (GPLEX)