Re: [xml] HTML parser sometimes doesn't close script tags in libxml2 2.9.8

[Nick Wellnhofer <wellnhofer aevum de>]

On 23/01/2019 16:14, Tomi Belan wrote:
> I don't know too much 
> about Python's C API, but [2] [3] suggests lxml is using a deprecated macro 
> and giving libxml2 a multibyte buffer even though the input would fit into 
> pure ASCII. This explains why it behaved differently than xmllint.

Right, if Python passes ASCII codes as, say, 16-bit integers, this will be 
detected as UTF-16 by libxml2 and encoding conversion will happen behind the 
scenes. I'm not sure what would happen with an encoding that isn't Unicode 
compatible. Maybe there's a bug lurking in lxml.

> It would be good to add some tests to decrease the likelihood that 
> this issue or something similar happens again.

Yes, that would be nice. But it was only a short-lived regression that I 
personally don't want to spend more time on. A UTF-16 test case derived from 
either your or the Chromium bug report would probably make most sense.

Nick