deletes a rectangular area of text in an acme window.
is given, it replaces each line in
the rectangle with the
The input rectangular area is specified by making
a selection in the acme window. The beginning and
end of the selection define the top left and
bottom right corners of the rectangle.
is useful when dealing with text in multi-column
formats (e.g., log files). It can also be used to
comment/uncomment, indent/unindent source code.