Path: csiph.com!usenet.pasdenom.info!nntpfeed.proxad.net!proxad.net!feeder1-2.proxad.net!news.tele.dk!news.tele.dk!small.news.tele.dk!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'url:pypi': 0.03; 'classes,': 0.05; 'classes.': 0.07; 'subject:module': 0.09; 'python': 0.11; 'exception': 0.13; "'a',": 0.16; '-tkc': 0.16; 'awk': 0.16; 'equivalence': 0.16; 'from:addr:mrabarnett.plus.com': 0.16; 'from:addr:python': 0.16; 'from:name:mrab': 0.16; 'message- id:@mrabarnett.plus.com': 0.16; 'posix': 0.16; 'received:192.168.1.4': 0.16; 'received:84.93': 0.16; 'received:84.93.230': 0.16; 'wrote:': 0.16; "wouldn't": 0.16; 'module,': 0.18; 'tend': 0.18; 'thanks,': 0.19; '>>>': 0.20; 'lawrence': 0.22; 'recognize': 0.22; 'module': 0.23; 'tried': 0.24; 'header:In-Reply-To:1': 0.24; 'tim': 0.24; 'url:bugs': 0.24; 'header:User-Agent:1': 0.26; 'gnu': 0.27; "doesn't": 0.28; 'chase': 0.29; 'perl': 0.29; 'character': 0.29; 'classes': 0.30; "skip:' 10": 0.30; 'supposed': 0.31; 'knows': 0.32; '[1]': 0.32; 'received:84': 0.32; 'url:python': 0.33; 'to:addr:python-list': 0.35; '???': 0.35; 'expected': 0.35; 'but': 0.36; 'url:org': 0.36; 'there': 0.36; '(and': 0.36; 'subject:: ': 0.37; 'does': 0.39; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'mark': 0.40; 'avoid': 0.61; '8bit%:77': 0.84; 'treats': 0.84; 'url:2015': 0.91 X-CM-Score: 0.00 X-CNFS-Analysis: v=2.1 cv=OoyysHLt c=1 sm=1 tr=0 a=0nF1XD0wxitMEM03M9B4ZQ==:117 a=0nF1XD0wxitMEM03M9B4ZQ==:17 a=0Bzu9jTXAAAA:8 a=QrohdLjRRo4A:10 a=IkcTkHD0fZMA:10 a=EBOSESyhAAAA:8 a=_IEhM8lNAAAA:8 a=8AHkEIZyAAAA:8 a=TF_s0o0iSu0VHhHIHLsA:9 a=QEXdDO2ut3YA:10 a=txu72aP9soMA:10 X-AUTH: mrabarnett@:2500 Date: Tue, 02 Jun 2015 00:47:11 +0100 From: MRAB User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Pyton re module and POSIX equivalence classes References: <20150601152930.77f0a8fb@bigbox.christie.dr> In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 33 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1433202435 news.xs4all.nl 2901 [2001:888:2000:d::a6]:35106 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:91732 On 2015-06-01 23:48, Mark Lawrence wrote: > 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 ??? > The regex module has POSIX character classes [[:alpha:]], but not POSIX equivalence classes.