I enjoyed this quite a bit. I had read Nikolai's comment back when it was linked in a few discussions and felt familiar with the techniques, but it's really nic

I enjoyed this quite a bit. I had read Nikolai's comment back when it was linked in a few discussions and felt familiar with the techniques, but it's really nice to have a detailed catalog with explanations and links :D. nit re: Although designed to help speed up the parsing of XML documents, it turns out they’re also useful for optimizing web-related features. HTML is syntactically very close to XML in a bunch of ways (cf XHTML's attempt to unify them IIRC?), so it seems almost exactly like the intended use of the instructions based on this description.