On Sun, 05 Jul 2009 01:58:13 -0700, Paul Rubin wrote: > Steven D'Aprano <st...@remove-this-cybersource.com.au> writes: >> Okay, we get it. Parsing HTML 5 is a bitch. What's your point? I don't >> see how a case statement would help you here: you're not dispatching on >> a value, but running through a series of tests until one passes. > > A case statement switch(x):... into a bunch of constant case labels > would be able to use x as an index into a jump vector, and/or do an > unrolled logarithmic (bisection-like) search through the tests, instead > of a linear search.
Yes, I'm aware of that, but that's not what John's code is doing -- he's doing a series of if expr ... elif expr tests. I don't think a case statement can do much to optimize that. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
