DocScript is an approach to document preparation. It presents tools and utilities to edit and publish documents. The philosophy behind the DocScript project is to utilize the programming tools you're working with anyway in your daily work.
cloc (Count Lines Of Code) counts, and computes differences of, comment lines, blank lines, and physical lines of source code in many programming languages.
cloc is now being developed at https://github.com/AlDanial/cloc
Doxygen filters for these programming languages: R from GNU, q from kx.com, MatLab from MathWorks. These programs are implemented in C++ using Flex++. They provide full inline sources not just function definitions.
This tutorial demonstrates how easy it is to accomplish real world programming goals with Rebol. The text aims to teach average users to program computers to do useful things, without the long and difficult learning curve imposed by other languages.