note
rsFalse
By the way, today I've found that in <a href="http://www.modernperlbooks.com/books/modern_perl_2016/03-perl-language.html#TmFtZXM">Modern_Perl</a> book, as an example is given <code>@3</code> as incorrect name:
<code>
These are invalid Perl identifiers:
my $invalid name; # space is invalid
my @3; # cannot start with number
my %~flags; # symbols invalid in name
</code>
(from 4th edition, page #13)
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