On Fri, 2015-09-25 at 08:23 -0700, Mark Sapiro wrote: > On 9/25/15 7:57 AM, Matthew Saltzman wrote: > > > > That's still much more aggressive than what I was trying to say. I > > actually want to ban precisely all variants of the one address > > > > joeb...@gmail.com > > > > (and about a dozen other addresses) that include embedded periods > > anywhere and the suffix, but not other gmail addresses. grep finds > > them with > > > > \.\?j\.\?o\.\?e\.\?b\.\?l\.\?o\.\?w\.\ ?+.*@gmail \.com > > > > (I might want \.* instead of \.\?) but adding > > > > ^\.\?j\.\?o\.\?e\.\?b\.\?l\.\?o\.\?w\.\ ?+.*@gmail\.com > > > > to the ban list doesn't seem to block them. > > > Because in a python RE, \? is a literal '?', not a '0 or 1 of > repeat'. > For grep you need the \? to give ? its special meaning. a regexp for > egrep or grep -E will be closer to what you want for python. You want > > ^\.?j\.?o\.?e\.?b\.?l\.?o\.?w xxx \+.*@gmail\.com > > where I'm unsure about the ' xxx ' part because I don't understand > what > '\ ?' is supposed to do?
Just a formatting mistake. > > Or instead of the above and to account for multiple '.' maybe > > ^\.*j\.*o\.*e\.*b\.*l\.*o\.*w\.*\+.*@gmail\.com > > which says zero or more dots followed by j followed by zero or more > dots > followed by o, etc., followed by w followed by zero or more dots > followed by + followed by anything followed by @gmail.com. > > See < > https://docs.python.org/2/library/re.html#regular-expression-syntax>. I think that's what my problem is. Will give it a try. Thanks very much. > -- Matthew Saltzman Clemson University Math Sciences mjs AT clemson DOT edu ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org
