boxquote provides a set of functions for using a text quoting style that
partially boxes in the left hand side of an area of text, such a marking
style might be used to show externally included text or example code.
| The default style looks like this.
A number of functions are provided for quoting a region, a buffer, a
paragraph and a defun. There are also functions for quoting text while
pulling it in, either by inserting the contents of another file or by
yanking text into the current buffer.