@cindex @samp{?} in regexp
is a quantifying suffix operator similar to @samp{*}, except that the
preceding expression can match either once or not at all. For example,
-@samp{ca?r} matches @samp{car} or @samp{cr}, but does not match anyhing
+@samp{ca?r} matches @samp{car} or @samp{cr}, but does not match anything
else.
@item *?
If @var{count} is zero, then the value is the position of the start of
the entire match. Otherwise, @var{count} specifies a subexpression in
-the regular expresion, and the value of the function is the starting
+the regular expression, and the value of the function is the starting
position of the match for that subexpression.
The value is @code{nil} for a subexpression inside a @samp{\|}