Xtract is an extendable, scriptable data extraction framework. It is meant to be a unified framework to perform data extraction tasks. It includes a sample module to identify JPEG files. A common, shared framework similar to this makes it possible to develop an easily deployable and commonly held set of data extraction tools that exceed the capability of any closed-source alternative. The script-based nature of Xtract makes it portable across architectures, and its modular design allows the easy addition of capabilities to identify new types of files or other data.
Pascal-P4 for Free Pascal and Delphi is a port of a Pascal compiler written at ETH Zurich in 1976. The source code of the compiler is documented in the book "Pascal Implementation" by Steven Pemberton and Martin Daniels. The purpose of this project is to make Pascal-P compilable by Free Pascal and Delphi while keeping the changes to a minimum and preserving the line numbering as much as possible.