No features have been listed yet.
Perl - Highly capable, feature-rich programming language with over 26 years of development
GCC C Preprocessor (cpp) - Top (The C Preprocessor)
Gema - General purpose text macro processor.
Xidel - Xidel is a command line tool to download html/xml pages and extract data from them using CSS 3 selectors, XPath 3 expressions or pattern-matching templates.
Procedural Text Edit - Text processing tool with a powerful and easy to learn language
PP - A generic Preprocessor - P is a text preprocessor designed for Pandoc (and more generally Markdown and reStructuredText).