GNU Source-highlight GNU Source-highlight, given a source file, produces a document with syntax highlighting. This is Edition 3.1.8 of the Source-highlight manual. This file documents GNU Source-highlight version 3.1.8. This manual is for GNU Source-highlight (version 3.1.8, 30 March 2015), which given a source file, produces a document with syntax highlighting. Copyright © 2005-2008 Lorenzo Betti