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Re: [csswg-drafts] [css-conditional] Unbalanced brackets in @supports condition (#1016)

From: Tab Atkins Jr. via GitHub <sysbot+gh@w3.org>
Date: Mon, 28 Sep 2020 22:39:38 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-700320579-1601332777-sysbot+gh@w3.org>
Yeah, the specs now normatively reference Syntax 3 properly, so everything's well defined. *Missing* closing brackets will be auto-closed by the CSS parser (and thus are perfectly fine), but unbalanced brackets are invalid per the `<any-value>` production.

So `(color: green) or an-extension(that is [unclosed` is valid, `(color: green) or an-extension(that is [unbalanced)` is invalid.

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