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Showing content from https://www.mail-archive.com/html5lib-discuss@googlegroups.com/msg00338.html below:

PHP html5lib vague to-do list

Excerpts from Geoffrey Sneddon's message of Sat May 23 10:40:26 -0400 2009:
> - Investigate moving the whole state-machine to one big switch  
> statement within the parse method (this shouldn't make the codebase  
> messy, IMO, and it avoids the function call overhead, which is  
> currently a non-negligible amount of our expense).
I recall doing some light performance testing, and finding that the
switch statement ended up taking more time, because PHP will then
perform an O(n) lookup instead of a function hashtable lookup, and
the n factor ends up outweighing the reduced constant factor. I recommend
doing some more benchmarks before putting in the effort of doing this.

Cheers,
Edward

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