code2flow is an experimental script which sweeps through your project source code, looking for function definitions, then does another sweep, looking for where those functions are called. It connects the dots and presents you with a flowchart estimating the functional structure of your program. It is especially useful for untangling spaghetti code and getting new developers up to speed. code2flow is experimental and meant to provide a rough overview of the structure of simple projects. Source code which is just a little esoteric will break this. Even with normal code, there are many known limitations and many outright bugs.
The DocBook Authoring and Publishing Suite (DAPS) provides a tool set for easy creation and publication of DocBook sources on Linux. It lets you create HTML (including Webhelp), PDF, EPUB, man pages, and other formats with a single command. It automatically takes care of validating and filtering (profiling) your sources and automatically converts images into a format best suited for the output format. You can easily create profiled source tarballs for translation or review. DAPS supports authors by providing linkchecker, validator, spellchecker, and editor macros. It is well suited to manage large documentation projects with multiple authors using the DAPS docmanager.
Doxer provides a wiki-based markup language for writing source code documentation and general purpose documents. It generates HTML output and also provides a Drupal input format module. The parser and HTML generator have a strong focus on robustness to support the full range of user sophistication found on general purpose Web sites. An extensive test suite accompanies the development.
TurnKey DokuWiki Appliance is an appliance for DokuWiki, a wiki system designed to address the documentation needs of small companies. It works on plain text files and thus needs no database. It has a simple but powerful syntax, similar to MediaWiki. Security patches are automatically installed. It provides a Web management interface, configuration console, and an AJAX Web shell. To minimize footprint the appliance is built from the ground up with the minimum required components. It runs everywhere thanks to multiple build formats, including an installable live CD, a VMDK with OVF support, and an Amazon EC2 AMI.
Thot takes as input text in a wiki-like format and outputs results for different formats: HTML, Latex, DocBook, and PDF. Although delivered with only one input language (Dokuwiki format), Thot is very versatile and easy to extend. For example, the initial version allows you to embed a document description from different entities: source language, GraphViz DOT graphs, Latex math, etc.
zpub is a server to collaboratively work on DocBook-based documentation. Editors modify the XML sources with their preferred editor and submit their changes via Subversion. zpub renders the files centrally to various output formats, optionally notifies other editors, provides an archive of all previous revisions of the document, and supports a simple sign-off workflow. The documentation and user interface is currently only available in German.