From: Kim F. Storm <storm@cua.dk>
Date: Mon, 31 Jan 2005 23:22:11 +0000 (+0000)
Subject: (Undo) <buffer-undo-list>: Describe `apply' elements.
X-Git-Tag: ttn-vms-21-2-B4~2493
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=e15db1740967bdcd7b6df1c5b4a1083a88b10933;p=emacs.git

(Undo) <buffer-undo-list>: Describe `apply' elements.
---

diff --git a/lispref/text.texi b/lispref/text.texi
index 785e7b99467..942fb2220a7 100644
--- a/lispref/text.texi
+++ b/lispref/text.texi
@@ -1208,6 +1208,18 @@ Here's how you might undo the change:
 (put-text-property @var{beg} @var{end} @var{property} @var{value})
 @end example
 
+@item (apply @var{funname} . @var{args})
+This kind of element records a change that can be undone by evaluating
+(@code{apply} @var{funname} @var{args}).
+
+@item (apply @var{delta} @var{beg} @var{end} @var{funname} . @var{args})
+This kind of element records a change that can be undone by evaluating
+(@code{apply} @var{funname} @var{args}).  The integer values @var{beg}
+and @var{end} is buffer positions of the range affected by this change
+and @var{delta} is an integer value which is the number of bytes added
+or deleted in that range by this change.  This kind of element
+supports undo in an active region
+
 @item (@var{marker} . @var{adjustment})
 This kind of element records the fact that the marker @var{marker} was
 relocated due to deletion of surrounding text, and that it moved