This is a library for computing context menus based on text properties and overlays. The intended use is to have tools that annotate source code and others that use these annotations, without requiring a direct coupling between them, but maintaining discoverability.

Major modes that wish to use this library should first define an appropriate value for prop-menu-item-functions. Then, they should bind prop-menu-by-completing-read to an appropriate key. Optionally, a mouse pop-up can be added by binding prop-menu-show-menu to a mouse event.