GNU Source-highlight produces a document with syntax highlighting when given a source file. It handles many languages, e.g., Java, C/C++, Prolog, Perl, PHP3, Python, Flex, HTML, and other formats, e.g., ChangeLog and log files, as source languages and HTML, XHTML, DocBook, ANSI color escapes, LaTeX, and Texinfo as output formats. Input and output formats can be specified with a regular expression-oriented syntax.
EFEU is suitable for handling data cubes, which are especially useful for building data warehouses. It consists of a building system including mkmf (a xmkmf like Makefile generator), esh (a powerful C/C++ interpreter), efeudoc (a document generator with different output formats (LaTeX, HTML, roff, etc.)). EFEU has a huge set of C library core features, including robust memory allocation tools, functions to concatenate and copy strings with memory allocation, buffers for dynamically-growing strings and fields, data structures with reference counters and garbage collection, and file tools that allow you to specify pipes wherever a filename is expected and support automatic implementation of (de)compression filters (gzip) depending on filename extensions. It also includes a high-level interface to files, strings, and anything else you can read from or write to.
Txt2tags converts a text file with minimal markup to HTML, XHTML, SGML, DocBook, LaTeX, Lout, Man page, Creole, Wikipedia, Google Code Wiki, PmWiki, DokuWiki, MoinMoin, MagicPoint, PageMaker, AsciiDoc, or ASCII Art. It is simple and fast and features automatic TOC, macros, filters, include, tools, GUI, CLI, and Web interfaces, translations, and extensive documentation.
viztool generates diagrams of collections of Java classes. It presently has only two visualizations: one shows inheritance hierarchies, interfaces implemented and inner classes declared, the other, a more detailed view of the classes, including public fields and methods. It is structured to allow the implementation of other visualizations. It uses the Java 2D API for rendering, but does so with the expectation that the diagrams will be printed, rather than rendered to the screen (though screen rendering is supported).
Jamit (Java Access Modifiers Inference Tool) allows you to infer tighter access modifiers for Java code. Analyzing bytecode, it can find out if fields or methods may be declared private, default, protected, or final. Engineering software with Jamit can thus help increase hiding and keep interfaces as small as possible. The most useful application for Jamit is dead code elimination. Jamit can be used to find out which methods and classes are unreachable and automatically eliminate the corresponding code, saving space for binary distributions.