search-based fontification rules to a major mode, and
@code{font-lock-remove-keywords} to removes rules.
-@defun font-lock-add-keywords mode keywords &optional append
+@defun font-lock-add-keywords mode keywords &optional how
This function adds highlighting @var{keywords}, for the current buffer
or for major mode @var{mode}. The argument @var{keywords} should be a
list with the same format as the variable @code{font-lock-keywords}.
@code{font-lock-add-keywords} is usually used in mode hook functions.
By default, @var{keywords} are added at the beginning of
-@code{font-lock-keywords}. If the optional argument @var{append} is
+@code{font-lock-keywords}. If the optional argument @var{how} is
@code{set}, they are used to replace the value of
-@code{font-lock-keywords}. If @var{append} is any other
-non-@code{nil} value, they are added at the end of
-@code{font-lock-keywords}.
+@code{font-lock-keywords}. If @var{how} is any other non-@code{nil}
+value, they are added at the end of @code{font-lock-keywords}.
Some modes provide specialized support you can use in additional
highlighting patterns. See the variables
This function removes @var{keywords} from @code{font-lock-keywords}
for the current buffer or for major mode @var{mode}. As in
@code{font-lock-add-keywords}, @var{mode} should be a major mode
-command name or @code{nil}. All the caveats and requirments for
+command name or @code{nil}. All the caveats and requirements for
@code{font-lock-add-keywords} apply here too.
@end defun