[Emacs-diffs] trunk r115034: Documentation followup to last commit.

[Eli Zaretskii]

------------------------------------------------------------
revno: 115034
revision-id: address@hidden
parent: address@hidden
fixes bug: http://debbugs.gnu.org/15797
committer: Eli Zaretskii <address@hidden>
branch nick: trunk
timestamp: Fri 2013-11-08 12:27:15 +0200
message:
  Documentation followup to last commit.
  
   doc/lispref/display.texi (Truncation): Document that cache-long-scans is now
   non-nil by default.  (Bug#15797)
modified:
  doc/lispref/ChangeLog          changelog-20091113204419-o5vbwnq5f7feedwu-6155
  doc/lispref/display.texi       
display.texi-20091113204419-o5vbwnq5f7feedwu-6172

=== modified file 'doc/lispref/ChangeLog'
--- a/doc/lispref/ChangeLog     2013-11-05 17:47:48 +0000
+++ b/doc/lispref/ChangeLog     2013-11-08 10:27:15 +0000
@@ -1,3 +1,8 @@
+2013-11-08  Eli Zaretskii  <address@hidden>
+
+       * display.texi (Truncation): Document that cache-long-scans is now
+       non-nil by default.  (Bug#15797)
+
 2013-11-05  Eli Zaretskii  <address@hidden>
 
        * lists.texi (Rearrangement): Fix indexing.

=== modified file 'doc/lispref/display.texi'
--- a/doc/lispref/display.texi  2013-11-06 14:22:02 +0000
+++ b/doc/lispref/display.texi  2013-11-08 10:27:15 +0000
@@ -214,19 +214,16 @@
 over the @code{line-prefix} variable.  @xref{Special Properties}.
 @end defvar
 
-  If your buffer contains @emph{very} long lines, and you use
-continuation to display them, computing the continuation lines can
-make redisplay slow.  The column computation and indentation functions
-also become slow.  Then you might find it advisable to set
address@hidden to @code{t}.
+  If your buffer contains only very short lines, you might find it
+advisable to set @code{cache-long-scans} to @code{nil}.
 
 @defvar cache-long-scans
-If this variable is address@hidden, various indentation and motion
-functions, and Emacs redisplay, cache the results of scanning the
-buffer, and consult the cache to avoid rescanning regions of the buffer
-unless they are modified.
+If this variable is address@hidden (the default), various indentation
+and motion functions, and Emacs redisplay, cache the results of
+scanning the buffer, and consult the cache to avoid rescanning regions
+of the buffer unless they are modified.
 
-Turning on the cache slows down processing of short lines somewhat.
+Turning off the cache speeds up processing of short lines somewhat.
 
 This variable is automatically buffer-local in every buffer.
 @end defvar