Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!goblin1!goblin2!goblin.stu.neva.ru!newsfeed.xs4all.nl!newsfeed3.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 0.004 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'string.': 0.05; 'string': 0.09; 'skip:$ 20': 0.09; 'skip:$ 30': 0.09; 'skip:$ 40': 0.09; 'cc:addr:python-list': 0.11; 'python': 0.11; 'advance!': 0.16; 'backslash,': 0.16; 'expressions,': 0.16; 'occurences': 0.16; 'substitute': 0.16; 'think.': 0.16; ':-)': 0.16; 'language': 0.16; 'wrote:': 0.18; 'bit': 0.19; 'trying': 0.19; 'everyone,': 0.19; 'programming': 0.22; 'cc:addr:python.org': 0.22; 'cc:2**0': 0.24; 'header:In-Reply-To:1': 0.27; 'correct': 0.29; '[1]': 0.29; 'am,': 0.29; 'character': 0.29; 'message-id:@mail.gmail.com': 0.30; "i'm": 0.30; 'url:mailman': 0.30; 'anyone': 0.31; 'class': 0.32; 'regular': 0.32; 'another': 0.32; 'url:python': 0.33; 'could': 0.34; 'problem': 0.35; 'common': 0.35; 'something': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'really': 0.36; 'url:listinfo': 0.36; 'thanks': 0.36; 'url:org': 0.36; 'should': 0.36; 'skip:& 10': 0.38; 'handle': 0.38; 'sure': 0.39; 'url:mail': 0.40; 'solve': 0.60; 'here': 0.66; 'skip:r 30': 0.69; 'url:info': 0.73; 'carefully': 0.74; 'to:addr:msn.com': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=u2BZgkNPWexQSn8wkUZ0x7UJgC4mL96wYXpl4d7W2w8=; b=ZGhpxUFWf/+soab68aHxKTKJEc4n1C6VtaMmMJPtEBsBjUy7185V/iFymN4OcsNP0K 96fBRZhHhcsoYex6rLBT6EX9eQ42JpIfA6hsSeH8rgxFLVp/I+i2eT7Qn2i6NQE3He7s e4jRe0SzT3sdnIs97MqOoaSj7JcR/ka6c+zbifdQWNqWrcsaRstci/vISQDgMranOyf3 io9hAFZZu9+65bj1jWoTAU2+vL4muOTp3TctSwBTuSFOneT2hFG9X7YHhv64ltX+g8vx Qd2lDqVJPpRvuS3jbTJAxB4pWuDjYuHIoKQjI6x2ujkImDEvtdSTjYPvcdV9vPkaYyQ8 a4Hg== X-Received: by 10.180.11.66 with SMTP id o2mr4947289wib.22.1414502742006; Tue, 28 Oct 2014 06:25:42 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <8c1c1b7f-d121-4f3d-adf9-8262ddd8f102@googlegroups.com> References: <8c1c1b7f-d121-4f3d-adf9-8262ddd8f102@googlegroups.com> From: TP Date: Tue, 28 Oct 2014 06:25:00 -0700 Subject: Re: Regex substitution trouble To: massi_srb@msn.com Content-Type: multipart/alternative; boundary=001a11c26a0878a33105067b95e4 Cc: "python-list@python.org" 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: 74 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1414502744 news.xs4all.nl 2870 [2001:888:2000:d::a6]:53195 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:79840 --001a11c26a0878a33105067b95e4 Content-Type: text/plain; charset=ISO-8859-1 On Tue, Oct 28, 2014 at 4:02 AM, wrote: > Hi everyone, > > I'm not really sure if this is the right place to ask about regular > expressions, but since I'm usin python I thought I could give a try :-) > Here is the problem, I'm trying to write a regex in order to substitute > all the occurences in the form $"somechars" with another string. This is > what I wrote: > > newstring = re.sub(ur"""(?u)(\$\"[\s\w]+\")""", subst, oldstring) > > This works pretty well, but it has a problem, I would need it also to > handle the case in which the internal string contains the double quotes, > but only if preceeded by a backslash, that is something like > $"somechars_with\\"doublequotes". > Can anyone help me to correct it? > > Thanks in advance! > -- > https://mail.python.org/mailman/listinfo/python-list > Carefully reading the Strings section of "Example Regexes to Match Common Programming Language Constructs" [1] should (with a bit of effort), solve your problem I think. Note the use of the negated character class for one thing. [1] http://www.regular-expressions.info/examplesprogrammer.html --001a11c26a0878a33105067b95e4 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On T= ue, Oct 28, 2014 at 4:02 AM, <massi_srb@msn.com> wrote:
=
Hi everyone,

I'm not really sure if this is the right place to ask about regular exp= ressions, but since I'm usin python I thought I could give a try :-) Here is the problem, I'm trying to write a regex in order to substitute= all the occurences in the form $"somechars" with another string.= This is what I wrote:

newstring =3D re.sub(ur"""(?u)(\$\"[\s\w]+\")"= ;"", subst, oldstring)

This works pretty well, but it has a problem, I would need it also to handl= e the case in which the internal string contains the double quotes, but onl= y if preceeded by a backslash, that is something like $"somechars_with= \\"doublequotes".
Can anyone help me to correct it?

Thanks in advance!
--
https://mail.python.org/mailman/listinfo/python-list

Carefully reading the Strings section of "Example Reg= exes to Match Common Programming Language Constructs" [1] should (with= a bit of effort), solve your problem I think. Note the use of the negated = character class for one thing.

[1] = http://www.regular-expressions.info/examplesprogrammer.html
--001a11c26a0878a33105067b95e4--