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Postings from May 2016
demerphq wrote:
>$ perl -wle'qr/\A{10}/'
>
>Quantifier unexpected on zero-length expression in regex m/\A{10}/ at -e line 1.
That's just a warning. It does actually parse as I stated.
>should probably do something like reduce any quantifier on an
>assertion to something like ? (IOW, 0 or 1).
That would be a sensible optimisation, but has essentially nothing to
do with whether it's syntactically permitted to attach a quantifier
directly to an assertion.
-zefram
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