CAVE WALL (Colored ASCII Visual Editor Without Any
Loathsome Limitations) is an ncurses-based ASCII
art editor. It features image import and export in
plain ASCII and ANSI formats, HTML export using
CSS, pictures up to 1000x1000 characters large,
copying and pasting selections, one-step undo, and
10 different cursor movement modes. Operations can
be performed on rectangular selections such as
rotating, colorizing, filling, and horizontal and
vertical mirroring with optional "intelligent"
character conversion (which changes slashes into
backslashes, etc.).