Description:

"boxes" can draw all kinds of boxes around its input text, ranging
from a C comment box to complex ASCII art. These boxes may also be
removed, even if they have been badly damaged by editing of the text
inside. Since boxes may be open on any side, "boxes" can also be used
to create regional comments in any programming language. With the help
of an editor macro or mapping, damaged boxes can easily be repaired.
New box designs of all sorts can easily be added and shared by
appending to a free format configuration file.