diff options
| -rw-r--r-- | lispref/os.texi | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lispref/os.texi b/lispref/os.texi index a1de8f09c36..e0c032f3e95 100644 --- a/lispref/os.texi +++ b/lispref/os.texi @@ -1375,6 +1375,9 @@ both before and after changing the buffer, to separate the timer's changes from user commands' changes and prevent a single undo entry from growing to be quite large. + If a timer function calls functions that can change the match data, +it should save and restore the match data. @xref{Saving Match Data}. + @deffn Command run-at-time time repeat function &rest args This sets up a timer that calls the function @var{function} with arguments @var{args} at time @var{time}. If @var{repeat} is a number |