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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.
- Changing 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".
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