The subscription model behind CSS selectors?

Posted by Martin Kristiansen on Stack Overflow See other posts from Stack Overflow or by Martin Kristiansen
Published on 2012-09-25T08:31:57Z Indexed on 2012/09/25 9:37 UTC
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jQuery

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css

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data-structures

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jquery-selectors

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css-selectors

With CSS selectors a query string body > h1.span subscribes to a specific type of nodes in the tree. Does anyone know how this is done?

Selectors for transformations, how does the browser select the result set? And is there a trick to making it efficient?

I imagine there being some sort of hierarchical type-tree for the entire structure to which the nodes subscribe and which is what is used when doing the selector queries — but this is only a guess.

Does anyone know the real answer? Or even more interesting, what would be the best way to do dynamic lookups on a tree based on jQuery/CSS search queries?

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