=item A sigil, followed by either a caret and a single POSIX uppercase letter,
like C<$^V> or C<$^W>, or a sigil followed by a literal control character
-matching the C<\p{POSIX_Cntrl}> property. Due to a historical oddity, if not
+matching the C<\p{POSIX_Cntrl}> property.
+Due to a historical oddity, if not
running under C<use utf8>, the 128 extra controls in the C<[0x80-0xff]> range
may also be used in length one variables.
C<who>.
In fact, a simple identifier within such curlies is forced to be
-a string, and likewise within a hash subscript. Neither need
+a string, and likewise within a hash subscript. Neither need
quoting. Our earlier example, C<$days{'Feb'}> can be written as
C<$days{Feb}> and the quotes will be assumed automatically. But
anything more complicated in the subscript will be interpreted as an
%sub = %h{'foo', 'bar'}; # key/value hash slice
However, result of such slice can not be localized, deleted or used
-in assignment. Otherwise very much consistent with hash slices.
+in assignment. Otherwise very much consistent with hash slices.
=head3 Index/value array slices