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31.4 Information from Markers

This section describes the functions for accessing the components of a marker object.

Function: marker-position marker

This function returns the position that marker points to, or nil if it points nowhere.

Function: marker-buffer marker

This function returns the buffer that marker points into, or nil if it points nowhere.

 
(setq m (make-marker))
     ⇒ #<marker in no buffer>
(marker-position m)
     ⇒ nil
(marker-buffer m)
     ⇒ nil

(set-marker m 3770 (current-buffer))
     ⇒ #<marker at 3770 in markers.texi>
(marker-buffer m)
     ⇒ #<buffer markers.texi>
(marker-position m)
     ⇒ 3770
Function: buffer-has-markers-at position

This function returns t if one or more markers point at position position in the current buffer.

Ce document a été généré par Eric Reinbold le 13 Octobre 2007 en utilisant texi2html 1.78.