Re: [csswg-drafts] [css-nesting] Concern about combinatorial explosion

From: Tab Atkins Jr. via GitHub <sysbot+gh@w3.org> Date: Tue, 10 Jul 2018 16:53:12 +0000 To: public-css-archive@w3.org Message-ID: <issue_comment.created-403892566-1531241592-sysbot+gh@w3.org> · This archive was generated by hypermail 2.4.0 : Tuesday, 19 October 2021 01:30:53 UTC

The innermost rule desugars down to:

`:matches(:matches(:matches(:matches(:matches(a1, a2) b, b :matches(a1, a2)) c, c :matches(:matches(a1, a2) b, b :matches(a1, a2))) d, d:matches(:matches(:matches(a1, a2) b, b :matches(a1, a2)) c, c :matches(:matches(a1, a2) b, b :matches(a1, a2)))) e, e :matches(:matches(:matches(:matches(a1, a2) b, b :matches(a1, a2)) c, c :matches(:matches(a1, a2) b, b :matches(a1, a2))) d, d:matches(:matches(:matches(a1, a2) b, b :matches(a1, a2)) c, c :matches(:matches(a1, a2) b, b :matches(a1, a2))))) f, f:matches(:matches(:matches(:matches(:matches(a1, a2) b, b :matches(a1, a2)) c, c :matches(:matches(a1, a2) b, b :matches(a1, a2))) d, d:matches(:matches(:matches(a1, a2) b, b :matches(a1, a2)) c, c :matches(:matches(a1, a2) b, b :matches(a1, a2)))) e, e :matches(:matches(:matches(:matches(a1, a2) b, b :matches(a1, a2)) c, c :matches(:matches(a1, a2) b, b :matches(a1, a2))) d, d:matches(:matches(:matches(a1, a2) b, b :matches(a1, a2)) c, c :matches(:matches(a1, a2) b, b :matches(a1, a2)))))`

The higher rules desugar to subsets of that.

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