Add FAQ entry on differences between v and u
#63
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A prose summary of this would be awesome to include non-normatively in the actual spec as well, kind of like Annex E (but obv nonbreaking). |
Co-authored-by: Markus Scherer <[email protected]>
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@gibson042 @markusicu @macchiati @pthier Is /[^^]/v actually an error? I noticed the current V8 implementation allows it.
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IMO it isn't, as the first ^ is consumed by the production CharacterClass :: [ ^ ClassContents ], so the remaining ^ is not a reserved double punctuator. [^^^] is an error in V8.
Note that also []] is not a breaking change, as this is an error also with /u.
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I guess [_^^] or, indeed, [^^^] is a better example. I’ll change this. Thanks!
[]] is currently not listed as a breaking change, so I think there’s no action to be taken for that one. Let me know if I misunderstood.
This would be useful to reference in integration PRs like whatwg/html#7908.