Path: csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed1.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 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'resulting': 0.04; 'expressions': 0.07; 'parser': 0.07; 'tool,': 0.07; 'oh,': 0.09; 'parsing': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'python': 0.11; 'finney': 0.16; 'newsgroup.': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'regex,': 0.16; 'roy': 0.16; 'tool.': 0.16; 'wrote:': 0.18; 'seems': 0.21; 'comfortable': 0.22; 'header:User-Agent:1': 0.23; "i've": 0.25; 'header:X -Complaints-To:1': 0.27; 'correct': 0.29; 'encouraged': 0.31; 'regular': 0.32; 'text': 0.33; 'tool': 0.35; 'but': 0.35; 'module.': 0.36; 'charset:us-ascii': 0.36; 'possible': 0.36; 'should': 0.36; 'example,': 0.37; 'problems': 0.38; 'ben': 0.38; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'even': 0.60; 'become': 0.64; 'more': 0.64; 'smith': 0.68; 'article': 0.77; 'attractive': 0.81; 'learn.': 0.84 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Neil Cerutti Subject: Re: regex multiple patterns in order Date: Mon, 20 Jan 2014 16:04:43 +0000 (UTC) Organization: Norwich University References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: jackman.norwich.edu User-Agent: slrn/0.9.9p1/mm/ao (Win32) 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: 1390233911 news.xs4all.nl 2956 [2001:888:2000:d::a6]:44499 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:64362 On 2014-01-20, Roy Smith wrote: > In article > , Ben > Finney wrote: >> Be aware that regex is not the solution to all parsing >> problems; for many parsing problems it is an attractive but >> inappropriate tool. You may need to construct a more specific >> parser for your needs. Even if it's possible with regex, the >> resulting pattern may be so complex that it's better to write >> it out more explicitly. > > Oh, posh. > > You are correct; regex is not the solution to all parsing > problems, but it is a powerful tool which people should be > encouraged to learn. For some problems, it is indeed the > correct tool, and this seems like one of them. Discouraging > people from learning about regexes is an educational > anti-pattern which I see distressingly often on this newsgroup. I use regular expressions regularly, for example, when editing text with gvim. But when I want to use them in Python I have to contend with the re module. I've never become comfortable with it. -- Neil Cerutti