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From: Karl Dahlke <eklhad@comcast.net>
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Subject: [Edbrowse-dev] :before :after
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> is it possible to only apply *these* selectors and quickly skim over the
> rest and do the on-demand stuff for them?

Well you're thinking exactly as I.
I did some stats, and 280 out of 5000 selectors in stackoverflow are of the before after type.
Applying 280, rather than 5000, is probably feasible.
And remember, stackoverflow is almost certainly a worst case.
Other sites don't have 5000 selectors, or 280 injecting selectors.
I laid some groundwork, wherein these selectors are flagged as generating text.

cssList[i].gentext = true;

Still I may want to optimize the way these selectors are applied.
Maybe some of the hashing code that I wrote, then decided I didn't need and threw away,
but it's still in github if I want it.

Karl Dahlke