Overview of a package providing some semi-WYSIWYG in LaTeX or HTML source. Beyond that there are a description of the details, a manual and links to the project pages on sourceforge.

A mode which allows running an XSLT processor on a buffer.

A powerful editor with XSLT processing and debugging capabilities. You can run an XSLT processor on the Emacs buffer you edit, and view the results either in another Emacs buffer or in a browser.

A text based tool to debug stylesheets and it is similar to the Unix/Linux debugger gdb. It uses using the libxslt library.

A query language for XML, based on XQuery 1.0. Includes an implementation for PHP.

A C++ regex template library that allows regexes to be written as strings or as expression templates and to refer to themselves and other regexes recursively.

The plug-in XPairtise provides a platform for distributed pair programming and offers shared editing, project synchronization, shared program and test execution, user management, built-in chat communication and a shared whiteboard.

xoscope for Linux is a digital oscilloscope that uses a sound card (via /dev/dsp or EsounD) and/or Radio Shack ProbeScope as the signal input.

Provides interface-based persistence to RDBMSs while allowing developers to focus on the object model, not the physical layer. It implements many of the interfaces specified by JDO. [Open source, GPL]

Open source (GNU GPL) portable module player for Unix or Win32.