Pyton re module and POSIX equivalence classes
Mark Lawrence
breamoreboy at yahoo.co.uk
Mon Jun 1 18:48:54 EDT 2015
On 01/06/2015 21:29, Tim Chase wrote:
> Is Python supposed to support POSIX "equivalence classes"? I tried
> the following in Py2 and Py3:
>
> >>> re.sub('[[=a=]]', 'A', 'aáàãâä', re.U)
> 'aáàãâä'
>
> which suggests that it doesn't (I would have expected "AAAAAA" as the
> result).
>
> Is there a way to get this behavior?
>
> I found that perl knows about them but treats them as an exception
> for now[1]. Supposedly GNU awk (and other GNU POSIXish tools)
> recognize character classes, as does vim.
>
> Thanks,
>
> -tkc
>
> [1]
> http://perldoc.perl.org/perlrecharclass.html
>
I wouldn't know directly as I tend to avoid them like the plague, but if
not are they in the "new" regex module, see
https://pypi.python.org/pypi/regex/2015.05.28 and/or
http://bugs.python.org/issue2636 ???
--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.
Mark Lawrence
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