GNU TeXmacs is a free wysiwyw (what you see is what you want) editing platform with special features for scientists. The software aims to provide a unified and user friendly framework for editing structured documents with different types of content: text, mathematics, graphics, interactive content. TeXmacs can also be used as an interface to many external systems for computer algebra, numerical analysis, and statistics. New presentation styles can be written by the user and new features can be added to the editor using Scheme.
The ALICE software implements AIML (Artificial Intelligence Markup Language), a non-standard evolving markup language for creating chat robots. The primary design feature of AIML is minimalism. Compared with other chat robot languages, AIML is perhaps the simplest. The pattern matching language is very simple, for example permitting only one wild-card ('*') match character per pattern. AIML is an XML language, implying that it obeys certain grammatical meta-rules. The choice of XML syntax permits integration with other tools such as XML editors. Another motivation for XML is its familiar look and feel, especially to people with HTML experience.
Jerry's Music Review System generates an HTML page from a simple flat file containing the band name, album name, date purchased, and a review of the album. It arranges the information and cross-indexes on band name and album name. It also displays a list of the 10 most recently purchased albums. Examples can be found on the homepage.
textslides generates a set of HTML slides from a single plain text file. The output can be used for a presentation or for a web site. You may find textslides useful if you need to create a presentation for a technical audience and you would like to use a text editor to create the presentation content. A simple set of formatting rules governs the translation of the textfile into HTML. The formatting rules for the textfile were inspired by the Wiki Website. textslides uses the Wpager.pm module from the htmlslides project.