terminate it, and @samp{\} quotes @samp{^}, @samp{-} or @samp{\}.
Thus, @code{"a-zA-Z"} skips over all letters, stopping before the
first nonletter, and @code{"^a-zA-Z"} skips nonletters stopping before
-the first letter. @xref{Regular Expressions}.
+the first letter. See @xref{Regular Expressions}. Character classes
+can also be used, e.g. @code{"[:alnum:]"}. See @pxref{Char Classes}.
If @var{limit} is supplied (it must be a number or a marker), it
specifies the maximum position in the buffer that point can be skipped