TEA is a powerful and easy-to-use Qt4-based editor with many useful features for HTML, Docbook, and LaTeX editing. It features a small footprint, a tabbed layout engine, support for multiple encodings, code snippets, templates, customizable hotkeys, an "open at cursor" function for HTML files and images, miscellaneous HTML tools, preview in external browser, string manipulation functions, Morse-code tools, bookmarks, syntax highlighting, and more.
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 SeaMonkey project is a community effort to develop an all-in-one Internet application suite. It contains an Internet browser, email and newsgroup client with an included Web feed reader, HTML editor, IRC chat, and Web development tools, and is sure to appeal to advanced users, Web developers, and corporate users. It uses much of the Mozilla source code powering such successful siblings as Firefox, Thunderbird, Camino, Sunbird, and Miro.
The NCBI C++ Toolkit provides portable libraries and applications for assisting genetic science. These include libraries for networking, SQL and BerkeleyDB access, CGI and HTML handling, ASN.1 and XML handling, sequence alignment engines, sequence retrieval engines, BLAST database engines, FLTK and OpenGL graphics toolkits, and basic system utilities.
Steev's HTML Parser is an HTML parsing library that builds a complete hierarchy for each element and attribute in the supplied HTML file. Each element is its own C++ class, replete with child nodes, allowing for full control and processing. An 'HTML beautifier' example is included.
XHTML Hyphenator is a filter for XHTML documents that will insert soft hyphens at the proper hyphenation points. It will hyphenate all words in text nodes that are children of nodes in the XHTML namespace and not part of the header (or, long story short, the text part of an XHTML document and nothing else). The hyphenation pattern used is derived from the xml:lang attribute governing the text. Soft hyphens are displayed correctly by most modern browsers and not at all by Mozilla Firefox, so you won't break anything by inserting hyphens, and it improves the text appearance considerably.