[master] 169e162 Enforce that VCL names must be C-language identifiers ([A-Za-z][A-Za-z0-9_]*)

[Poul-Henning Kamp]

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In message <CAJV_h0ZrTPpdf0u0PnjS1Vb1gnxW0Auk7SGKuCReGwTEQW9Ajg at mail.gmail.com>
, Federico Schwindt writes:

>Isn't dash (-) usage quite widespread?
>
>I'd expect it to be the most common character outside digits and numbers.

The problem is that VCL label names need to be C-idents, and I'm
not terribly keen on having different namespace for VCL labels and
"real" VCLs.

The alternative would be to encode a freer form into C-idents, but that
turns really ugly really fast...

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