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Groups > comp.lang.python > #98204
| From | Steven D'Aprano <steve+comp.lang.python@pearwood.info> |
|---|---|
| Date | 2015-11-04 14:35 +1100 |
| Subject | Re: Regular expressions |
| Newsgroups | comp.lang.python |
| References | (1 earlier) <mailman.0.1446519578.8789.python-list@python.org> <hp9g3b9hsn06edb0po8bduegjqkmpo4p8n@4ax.com> <mailman.28.1446564855.8789.python-list@python.org> <tjmh3blsb60fmvginp4q6sbe2659p4rh9f@4ax.com> <mailman.34.1446567607.8789.python-list@python.org> |
| Followup-To | comp.lang.python |
| Message-ID | <56397cfd$0$1601$c3e8da3$5496439d@news.astraweb.com> (permalink) |
| Organization | Unlimited download news at news.astraweb.com |
Followups directed to: comp.lang.python
On Wednesday 04 November 2015 03:20, Chris Angelico wrote: > On Wed, Nov 4, 2015 at 3:10 AM, Seymore4Head > <Seymore4Head@hotmail.invalid> wrote: >> Yes I knew that -1 represents the end character. It is not a question >> of trying to accomplish anything. I was just practicing with regex >> and wasn't sure how to express a * since it was one of the >> instructions. > > In that case, it's nothing to do with ending a string. Seymore never said anything about ending a string. > What you really > want to know is: How do you match a '*' using a regular expression? He may want to know that too, but that's not what he asked for. He asked how to match an asterisk at the end of the line. > Which is what MRAB answered, courtesy of a working crystal ball: You > use '\*'. Everything about the end of the string is irrelevant. Not at all -- matching "\*" will find lines *beginning* with an asterisk if you use re.match, and lines containing an asterisk *anywhere* in the line if you use re.search. I say "line" because the most common use for re.match and re.search is to match against a single line of text, but of course regexes can operate on multiline blocks of text, with or without multiline mode turned on. And calling it "a working crystal ball" is somewhat of an exaggeration. The plain English meaning of Seymore's plain English question is easily understood: he wants to know how to match an asterisk at the end of the line, just like he said :-P > (So, > too, are all the comments about using [-1] or string methods. But we > weren't to know that.) If MRAB could understand what he wanted, I'm sure most others could have too. -- Steve
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Regular expressions Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-11-02 20:09 -0500
Re: Regular expressions MRAB <python@mrabarnett.plus.com> - 2015-11-03 01:19 +0000
Re: Regular expressions Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-11-02 22:17 -0500
Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-02 20:42 -0600
Re: Regular expressions Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-11-02 22:17 -0500
Re: Regular expressions Joel Goldstick <joel.goldstick@gmail.com> - 2015-11-02 22:58 -0500
Re: Regular expressions rurpy@yahoo.com - 2015-11-02 20:23 -0800
Re: Regular expressions Michael Torrie <torriem@gmail.com> - 2015-11-02 21:38 -0700
Re: Regular expressions rurpy@yahoo.com - 2015-11-03 16:33 -0800
Re: Regular expressions Michael Torrie <torriem@gmail.com> - 2015-11-03 19:04 -0700
Re: Regular expressions Dan Sommers <dan@tombstonezero.net> - 2015-11-04 02:55 +0000
Re: Regular expressions Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-11-04 14:23 +1100
Re: Regular expressions Michael Torrie <torriem@gmail.com> - 2015-11-03 20:47 -0700
Re: Regular expressions Grant Edwards <invalid@invalid.invalid> - 2015-11-04 13:27 +0000
Re: Regular expressions Nobody <nobody@nowhere.invalid> - 2015-11-04 05:05 +0000
Re: Regular expressions Peter Otten <__peter__@web.de> - 2015-11-04 09:57 +0100
Re: Regular expressions Steven D'Aprano <steve@pearwood.info> - 2015-11-05 13:28 +1100
Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-04 20:48 -0600
Re: Regular expressions Ben Finney <ben+python@benfinney.id.au> - 2015-11-05 14:03 +1100
Re: Regular expressions Peter Otten <__peter__@web.de> - 2015-11-05 09:33 +0100
Re: Regular expressions Steven D'Aprano <steve@pearwood.info> - 2015-11-05 23:05 +1100
Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-05 08:00 -0600
Re: Regular expressions Albert van der Horst <albert@spenarnc.xs4all.nl> - 2015-11-05 13:39 +0000
Re: Regular expressions Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-11-04 08:00 -0500
Re: Regular expressions Michael Torrie <torriem@gmail.com> - 2015-11-04 08:13 -0700
Re: Regular expressions Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-11-04 18:00 -0500
Re: Regular expressions rurpy@yahoo.com - 2015-11-04 16:24 -0800
Re: Regular expressions Steven D'Aprano <steve@pearwood.info> - 2015-11-05 13:24 +1100
Re: Regular expressions rurpy@yahoo.com - 2015-11-04 21:59 -0800
Re: Regular expressions Christian Gollwitzer <auriocus@gmx.de> - 2015-11-05 09:18 +0100
Re: Regular expressions rurpy@yahoo.com - 2015-11-06 11:52 -0800
Re: Regular expressions Christian Gollwitzer <auriocus@gmx.de> - 2015-11-06 21:36 +0100
Re: Regular expressions Larry Martell <larry.martell@gmail.com> - 2015-11-06 15:42 -0500
Re: Regular expressions Chris Angelico <rosuav@gmail.com> - 2015-11-05 11:34 +1100
Re: Regular expressions rurpy@yahoo.com - 2015-11-04 22:27 -0800
Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-04 09:42 -0600
Re: Regular expressions Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-11-05 20:55 +1300
Re: Regular expressions Chris Angelico <rosuav@gmail.com> - 2015-11-05 19:06 +1100
What does “grep” stand for? (was: Regular expressions) Ben Finney <ben+python@benfinney.id.au> - 2015-11-05 05:24 +1100
Re: What does “grep” stand for? Christian Gollwitzer <auriocus@gmx.de> - 2015-11-04 20:38 +0100
Re: What does “grep” stand for? Chris Angelico <rosuav@gmail.com> - 2015-11-05 11:42 +1100
Re: What does “grep” stand for? Christian Gollwitzer <auriocus@gmx.de> - 2015-11-05 08:32 +0100
Re: What does “grep” stand for? Chris Angelico <rosuav@gmail.com> - 2015-11-05 19:00 +1100
Re: What does “grep” stand for? Random832 <random832@fastmail.com> - 2015-11-05 10:19 -0500
Re: What does “grep” stand for? Grant Edwards <invalid@invalid.invalid> - 2015-11-05 18:29 +0000
Re: What does “grep” stand for? Random832 <random832@fastmail.com> - 2015-11-05 14:56 -0500
Re: What does “grep” stand for? Grant Edwards <invalid@invalid.invalid> - 2015-11-05 20:19 +0000
Re: What does “grep” stand for? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-11-05 20:18 -0500
Re: What does “grep” stand for? Larry Hudson <orgnut@yahoo.com> - 2015-11-05 19:36 -0800
Re: What does “grep” stand for? Dan Sommers <dan@tombstonezero.net> - 2015-11-06 05:31 +0000
Re: What does “grep” stand for? William Ray Wing <wrw@mac.com> - 2015-11-06 08:25 -0500
Re: What does “grep” stand for? Larry Hudson <orgnut@yahoo.com> - 2015-11-06 19:21 -0800
Re: What does ???grep??? stand for? Grant Edwards <invalid@invalid.invalid> - 2015-11-06 14:15 +0000
Re: What does ???grep??? stand for? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-11-06 20:03 -0500
Re: What does “grep” stand for? (was: Regular expressions) Tim Chase <python.list@tim.thechases.com> - 2015-11-04 13:05 -0600
Re: Regular expressions Terry Reedy <tjreedy@udel.edu> - 2015-11-04 18:08 -0500
Re: Regular expressions Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-11-04 18:29 -0500
Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-03 21:12 -0600
Re: Regular expressions Chris Angelico <rosuav@gmail.com> - 2015-11-04 14:26 +1100
Re: Regular expressions Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-11-04 14:48 +1100
Re: Regular expressions Christian Gollwitzer <auriocus@gmx.de> - 2015-11-04 08:21 +0100
Re: Regular expressions Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-11-04 19:47 +1100
Re: Regular expressions rurpy@yahoo.com - 2015-11-04 06:43 -0800
Re: Regular expressions rurpy@yahoo.com - 2015-11-04 06:38 -0800
Re: Regular expressions Chris Angelico <rosuav@gmail.com> - 2015-11-05 01:52 +1100
Re: Regular expressions rurpy@yahoo.com - 2015-11-04 16:13 -0800
Re: Regular expressions Chris Angelico <rosuav@gmail.com> - 2015-11-05 11:33 +1100
Re: Regular expressions rurpy@yahoo.com - 2015-11-04 21:42 -0800
Re: Regular expressions Steven D'Aprano <steve@pearwood.info> - 2015-11-05 13:26 +1100
Re: Regular expressions Ben Finney <ben+python@benfinney.id.au> - 2015-11-05 14:07 +1100
Re: Regular expressions rurpy@yahoo.com - 2015-11-04 21:54 -0800
Re: Regular expressions Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-05 10:14 +0100
Re: Regular expressions Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-11-04 18:02 -0500
Re: Regular expressions Steven D'Aprano <steve@pearwood.info> - 2015-11-05 11:54 +1100
Re: Regular expressions Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-11-05 10:07 -0500
Re: Regular expressions rurpy@yahoo.com - 2015-11-06 12:46 -0800
Re: Regular expressions Steven D'Aprano <steve@pearwood.info> - 2015-11-03 18:15 +1100
Re: Regular expressions Nick Sarbicki <nick.a.sarbicki@gmail.com> - 2015-11-03 08:43 +0000
Re: Regular expressions rurpy@yahoo.com - 2015-11-03 16:22 -0800
Re: Regular expressions Denis McMahon <denismfmcmahon@gmail.com> - 2015-11-03 12:38 +0000
Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-03 05:53 -0600
Re: Regular expressions Joel Goldstick <joel.goldstick@gmail.com> - 2015-11-03 10:34 -0500
Re: Regular expressions Seymore4Head <Seymore4Head@Hotmail.invalid> - 2015-11-03 11:10 -0500
Re: Regular expressions Chris Angelico <rosuav@gmail.com> - 2015-11-04 03:20 +1100
Re: Regular expressions Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-11-04 14:35 +1100
Re: Regular expressions Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2015-11-04 12:41 +0100
Re: Regular expressions Grant Edwards <invalid@invalid.invalid> - 2015-11-03 14:56 +0000
Re: Regular expressions Michael Torrie <torriem@gmail.com> - 2015-11-02 20:51 -0700
Re: Regular expressions rurpy@yahoo.com - 2015-11-02 20:23 -0800
Re: Regular expressions Michael Torrie <torriem@gmail.com> - 2015-11-02 21:33 -0700
Re: Regular expressions Robin Koch <robin.koch@t-online.de> - 2015-11-03 23:58 +0100
Re: Regular expressions Peter Otten <__peter__@web.de> - 2015-11-03 10:25 +0100
Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-03 05:50 -0600
Re: Regular expressions Peter Otten <__peter__@web.de> - 2015-11-03 15:00 +0100
Re: Regular expressions Jussi Piitulainen <harvesting@makes.email.invalid> - 2015-11-03 17:12 +0200
Irregular last line in a text file, was Re: Regular expressions Peter Otten <__peter__@web.de> - 2015-11-03 16:35 +0100
Re: Irregular last line in a text file, was Re: Regular expressions Jussi Piitulainen <harvesting@makes.email.invalid> - 2015-11-03 18:42 +0200
Re: Irregular last line in a text file, was Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-03 10:56 -0600
Re: Irregular last line in a text file, was Re: Regular expressions Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-11-04 14:39 +1100
Re: Irregular last line in a text file, was Re: Regular expressions Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2015-11-04 10:07 +0000
Re: Irregular last line in a text file, was Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-04 09:33 -0600
Re: Irregular last line in a text file, was Re: Regular expressions Peter Otten <__peter__@web.de> - 2015-11-03 18:44 +0100
Re: Irregular last line in a text file, was Re: Regular expressions Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-03 11:33 -0700
Re: Irregular last line in a text file, was Re: Regular expressions Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-03 11:39 -0700
Re: Irregular last line in a text file, was Re: Regular expressions Tim Chase <python.list@tim.thechases.com> - 2015-11-03 13:45 -0600
Re: Irregular last line in a text file, was Re: Regular expressions Grant Edwards <invalid@invalid.invalid> - 2015-11-03 22:15 +0000
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