Path: csiph.com!usenet.pasdenom.info!news.albasani.net!newsfeed.freenet.ag!news2.euro.net!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 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'cpython': 0.05; 'explicitly': 0.05; '(of': 0.07; 'code"': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:question': 0.10; 'python': 0.11; 'suggest': 0.14; 'language.': 0.14; 'does,': 0.16; 'kern': 0.16; 'lexer': 0.16; 'lexical': 0.16; 'notation.': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'undefined.': 0.16; 'underlying': 0.16; 'language': 0.16; 'wrote:': 0.18; 'bit': 0.19; "python's": 0.19; 'header:User- Agent:1': 0.23; 'documented': 0.24; 'interpret': 0.24; 'necessary.': 0.24; 'of.': 0.24; '(for': 0.26; 'defined': 0.27; 'header:X-Complaints-To:1': 0.27; 'header:In-Reply-To:1': 0.27; 'point': 0.28; 'chris': 0.29; 'robert': 0.30; 'specified': 0.30; 'code': 0.31; '25,': 0.31; 'there.': 0.32; 'probably': 0.32; 'quite': 0.32; 'implemented': 0.33; 'no,': 0.35; 'but': 0.35; 'there': 0.35; 'should': 0.36; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'does': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'course': 0.61; "you're": 0.61; 'our': 0.64; 'places': 0.64; 'world': 0.66; 'believe': 0.68; 'analysis': 0.75; '9:19': 0.84; 'eco': 0.84; 'moot': 0.84; 'terrible': 0.84; '2013': 0.98 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Robert Kern Subject: Re: n00b question on spacing Date: Tue, 25 Jun 2013 12:59:33 +0100 References: <24094189.2779.1371851333304.JavaMail.rgacote@ip-225.appropriatesolutions.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: 213.1.240.226 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 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: 28 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1372161579 news.xs4all.nl 15906 [2001:888:2000:d::a6]:43521 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:49149 On 2013-06-25 12:48, Chris Angelico wrote: > On Tue, Jun 25, 2013 at 9:19 PM, Robert Kern wrote: >> There is quite a bit of Python's lexical analysis that is specified in >> places other than the formal notation. That does not mean it is undefined. >> It is well defined in the lexer code and the documentation. You suggest that >> a "rule probably should be added to the lexer to make this explicit." That >> is not necessary. The rule is already there. > > Be careful; Python is not an implementation-defined language. Python > has no "lexer code" - CPython does, and is probably what you're > thinking of. No, that's not what I am thinking of. I said that the rule is defined in both code and the documentation. Mark did suggest adding the rule to the lexer (for which he may have been thinking of just CPython, but you can take that up with him), but of course it is already there. I did not suggest that its presence in the lexer code (of any or all implementations) is sufficient, but the point is moot because it is already both explicitly implemented (several times) and clearly documented in the Python language reference. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco