Hackr.io - There are tons of online programming courses and tutorials, but it's never easy to find the best one. Try Hackr.io to find the best online courses submitted & voted by the programming community.
GNU M4 - GNU M4 is an implementation of the m4 macro preprocessor.
Google's Python Class - Assorted educational materials provided by Google.
Gema - General purpose text macro processor.
A Byte of Python - A Byte of Python is a Python programming tutorial and learning book that teaches you how to program with the Python programming language.
GPP - GPP is a general-purpose preprocessor with customizable syntax, suitable for a wide range of...