Source : Free On-Line Dictionary of Computing

Xcoral
     
        A multiwindow mouse-based text editor, for the {X Window
        System} with a built-in browser to navigate through {C}
        functions and {C++} {class}es hierarchies.  Xcoral provides
        variables width {font}s, menus, {scrollbar}s, {button}s,
        search, regions, kill-buffers and 3D look.  Commands are
        accessible from menus or standard key bindings.  Xcoral is a
        direct {Xlib} {client} and runs on colour or monochrome X
        displays.
     
        {Version 1.72 (ftp://ftp.inria.fr/X/contrib/clients/xcoral*)}.
     
        (1993-03-14)