No. There are special variables with "weird" names ($/, $!, $¢) but they aren't identifiers.

I also don't think that [ counts as an identifier character in Perl 5, because you can't write sub [ { }

Perl 6 - second systems done right

In reply to Re^3: Perl6: What is "idfirst letter"? by moritz
in thread Perl6: What is "idfirst letter"? by rir

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