www.delorie.com/gnu/docs/elisp-manual-21/elisp_646.html   search  
Buy the book!

GNU Emacs Lisp Reference Manual

[ < ] [ > ]   [ << ] [ Up ] [ >> ]         [Top] [Contents] [Index] [ ? ]

38.12.4 Conditional Display Specifications

You can make any display specification conditional. To do that, package it in another list of the form (when condition . spec). Then the specification spec applies only when condition evaluates to a non-nil value. During the evaluation, object is bound to the string or buffer having the conditional display property. position and buffer-position are bound to the position within object and the buffer position where the display property was found, respectively. Both positions can be different when object is a string.

  webmaster   donations   bookstore     delorie software   privacy  
  Copyright 2003   by The Free Software Foundation     Updated Jun 2003