Poedit is a gettext translation (.po file) editor for Unix, Windows, and OS X. It aims to provide translators with a simple, easy to use user interface with all the essential tools such as spellchecker or translation memory. It can also be used to manage translations for small projects.
MzVim is the Vim editor with an embedded MzScheme interpreter. MzScheme is a lightweight, embeddable, scripting-friendly PLT Scheme implementation. It provides full access to Vim commands and registers, and to VimL built-in variables and functions, so there is no need to execute Vim statements in string literal form. It also features OS-independent threads and an event-handling mechanism which allows Scheme to be used for autocommands, keyboard mappings, and menus.
Diakonos is a customizable, usable console-based text editor. It features arbitrary language scripting, an interactive help system, bookmarking, regular expression searching, parsed ("smart") indentation, macro recording and playback, a multi-element clipboard, multi-level undo, a customizable status line, completely customizable keyboard mapping, and customizable syntax highlighting.
Richie Rich is an HTML document editor that runs within a Web browser. Unlike other in-line HTML editors, this operates straight on the DOM to avoid incongruities between what is visible in the front end and the HTML that is created in the back end. It supports undo, mouse selection, cursor positioning, and creation of headings, paragraphs, lists, links, bold, italic, and underline.
AVL Array is an STL-like container for C++ that fills the gap between vector (or deque) and list, providing both fast random access and fast insertion/removal, all O(log n). This is not a map; in an avl_array, the "keys" always range from 0 to size-1, and they automatically change on insertion or removal. As a sequence container, like vector and list, it respects the order of elements.