[Python-Dev] New Py_UNICODE doc

["Martin v. Löwis"]

M.-A. Lemburg wrote:
> On sre character classes: I don't think that these provide
> a good approach to XML lexical classes - custom functions
> or methods or maybe even a codec mapping the characters
> to their XML lexical class are much more efficient in
> practice.

That isn't my experience: functions that scan XML strings
are much slower than regular expressions. I can't imagine
how a custom codec could work, so I cannot comment on that.

Regards,
Martin