Gosh, I'm sorry that was worth a negative vote from you. Was it really a coincidence that all the examples you gave of variables that you couldn't dereference are included on the list of Perl special variables?
Since you dislike them so much, I'm sure there's still time for you to get on over to perl6 and volunteer some time rewriting the core so the internals don't have such "crappy" names ...
Remember: Ne dederis in spiritu molere illegitimi!
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Too much for such question :)
I'm working on parser exactly for Perl5, not 6 (yet) and need to know this :)
And no, it's not a coincidence, maybe i've just used a bad word "crappy names". I'm talking about let's say unusual variables, not <sigil><basic_identifier>. Let's say ambiguous ones.
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I need to know which of them can't be plainly dereferenced because perl parser says so. Not list of all built-ins.
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