elements of the form @code{(@var{interpreter} . @var{mode})}; for
example, @code{("perl" . perl-mode)} is one element present by
default. The element says to use mode @var{mode} if the file
-specifies an interpreter which matches @var{interpreter}. The value
-of @var{interpreter} is actually a regular expression. @xref{Regular
-Expressions}.
+specifies an interpreter which matches @var{interpreter}.
@end defvar
@defvar magic-mode-alist