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Markers

A marker is a Lisp object used to specify a position in a buffer relative to the surrounding text. A marker changes its offset from the beginning of the buffer automatically whenever text is inserted or deleted, so that it stays with the two characters on either side of it.

• Overview of Markers:		The components of a marker, and how it relocates.
• Predicates on Markers:		Testing whether an object is a marker.
• Creating Markers:		Making empty markers or markers at certain places.
• Information from Markers:		Finding the marker’s buffer or character position.
• Marker Insertion Types:		Two ways a marker can relocate when you insert where it points.
• Moving Markers:		Moving the marker to a new buffer or position.
• The Mark:		How the mark is implemented with a marker.
• The Region:		How to access the region.