Ben Finney wrote:
Steven D'Aprano <st...@pearwood.info> writes:
Ben Finney wrote:
"M.-A. Lemburg" <m...@egenix.com> writes:
No, you tell them: "If you want Unicode 6 semantics, use regex, if
you're fine with Unicode 2.0/3.0 semantics, use re".
What do we say, then, to those who are unaware of the different
semantics between those versions of Unicode, and want regular expression
to “just work” in Python?
To which document can we direct them to understand what semantics they
want?
Presumably, like all modules, both the re and the regex module will
have their own individual pages in the library reference.
My question is directed more to M-A Lemburg's passage above, and its
implicit assumption that the user understand the changes between
“Unicode 2.0/3.0 semantics” and “Unicode 6 semantics”, and how their own
needs relate to those semantics.
For programmers who know they want to follow Unicode conventions in
Python, but don't know the distinction M-A Lemburg is drawing, to which
document does he recommend we direct them?
I can only repeat my answer: the docs for the new regex module should
include a discussion of the differences. If that requires summarising
the differences that M-A Lemburg refers to, then so be it.
“The Unicode specification document in its various versions” isn't a
feasible answer.
Presumably the Unicode spec will be the canonical source, but I agree
that we should not expect people to read that in order to make a
decision between re and regex.
--
Steven
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