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Overlays in the Emacs sense

Hugo Schmitt 11 years ago 0

Overlays alter the appearance of a buffer's text on the screen, for the sake of presentation features. An overlay  has a specified beginning and end. It also has properties that you can examine and set; these affect the display of the text within the overlay.


http://www.gnu.org/software/emacs/manual/html_node/elisp/Overlays.html