Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!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; 'talks': 0.03; '(at': 0.04; 'from:addr:yahoo.co.uk': 0.04; 'languages,': 0.04; 'subject:Python': 0.06; 'subject: -- ': 0.07; 'lawrence': 0.09; 'len(x)': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'spelled': 0.09; 'thus,': 0.09; 'tismer': 0.09; 'runs': 0.10; 'python': 0.11; '"f"': 0.16; 'expect,': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'roy': 0.16; 'subject:Unicode': 0.16; 'subject:handling': 0.16; 'uppercase': 0.16; 'language': 0.16; 'wrote:': 0.18; 'do.': 0.18; 'programming': 0.22; 'header:User-Agent:1': 0.23; 'certainly': 0.24; 'unicode': 0.24; "haven't": 0.24; 'second': 0.26; 'least': 0.26; 'values': 0.27; 'header:X-Complaints-To:1': 0.27; 'header :In-Reply-To:1': 0.27; 'idea': 0.28; 'url:bugs': 0.29; "skip:' 10": 0.31; 'that.': 0.31; '3.2': 0.31; 'argue': 0.31; "d'aprano": 0.31; 'purely': 0.31; 'steven': 0.31; 'run': 0.32; 'url:python': 0.33; 'but': 0.35; 'there': 0.35; 'yield': 0.36; 'url:org': 0.36; 'should': 0.36; 'wrong': 0.37; 'christian': 0.38; 'to:addr:python- list': 0.38; 'expect': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'skip:x 10': 0.40; 'skip:u 10': 0.60; 'most': 0.60; 'lower': 0.61; 'world.': 0.61; 'back': 0.62; 'such': 0.63; 'smith': 0.68; 'upper': 0.74; 'article': 0.77; '"i".': 0.84; 'curl': 0.84 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Mark Lawrence Subject: Re: Python Unicode handling wins again -- mostly Date: Sat, 30 Nov 2013 08:07:38 +0000 References: <529934dc$0$29993$c3e8da3$5496439d@news.astraweb.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: host-78-147-183-167.as13285.net User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.1.1 In-Reply-To: X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 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: 43 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1385798876 news.xs4all.nl 15959 [2001:888:2000:d::a6]:52455 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:60804 On 30/11/2013 02:08, Roy Smith wrote: > In article <529934dc$0$29993$c3e8da3$5496439d@news.astraweb.com>, > Steven D'Aprano wrote: > >> (8) What's the uppercase of "baffle" spelled with an ffl ligature? >> >> Like most other languages, Python 3.2 fails: >> >> py> 'baffle'.upper() >> 'BAfflE' >> >> but Python 3.3 passes: >> >> py> 'baffle'.upper() >> 'BAFFLE' > > I disagree. > > The whole idea of ligatures like fi is purely typographic. The crossbar > on the "f" (at least in some fonts) runs into the dot on the "i". > Likewise, the top curl on an "f" run into the serif on top of the "l" > (and similarly for ffl). > > There is no such thing as a "FFL" ligature, because the upper case > letterforms don't run into each other like the lower case ones do. > Thus, I would argue that it's wrong to say that calling upper() on an > ffl ligature should yield FFL. > > I would certainly expect, x.lower() == x.upper().lower(), to be True for > all values of x over the set of valid unicode codepoints. Having > u"\uFB04".upper() ==> "FFL" breaks that. I would also expect len(x) == > len(x.upper()) to be True. > http://bugs.python.org/issue19819 talks about these beasties. Please don't come back to me as I haven't got a clue!!! -- Python is the second best programming language in the world. But the best has yet to be invented. Christian Tismer Mark Lawrence