On 02/03/2015 12:08 PM, e.c. wrote:

At least in Emacs the following regexp works

\_<test\_>

that finds 'test' but not 'fastest' or 'testy'

bash, perl, ruby, etc. may have different ways of doing the same thing.

In Mailman, with Python regexps <https://docs.python.org/2/library/re.html>, I would use

^Subject:.*\Wtest\W

\W matches any 'non-word' character and is equivalent to [^a-zA-Z0-9_], i.e. anything including new-line which is not a letter, digit or underscore.

...

...

import re cre = re.compile('^Subject:.*\Wtest\W', re.IGNORECASE) s1 = """Subject: This is a test of mailman.""" s2 = """Subject: This is a test.""" s3 = """Subject: I am testing...""" s4 = """Subject: This is a test ... """ cre.search(s1) <_sre.SRE_Match object at 0x7f740d0abac0> cre.search(s2) <_sre.SRE_Match object at 0x7f740d0abb28> cre.search(s3) cre.search(s4) <_sre.SRE_Match object at 0x7f740d0abac0>

-- Mark Sapiro <mark@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan

Malcolm Austen writes:

What I would really like is a (simple) way to trap the absence of a
subject header but I think, we can (understandably) only trap on the
content of something that is present :-(

As a workaround, procmail supports negative assertions of that kind:

:0:

• ! ^Subject no-subject-bitbucket

would do what you want. That may not be acceptable to you, of course, depending on the facilities available to you, or convenience. Just throwing it out there, somebody might find it useful.

I don't think it would be hard to add this feature if there's no way to do it, although Mark may not want to do it in 2.1.x. Wait for Mark and if he says it can't be done in current Mailman, I'd suggest filing an RFE at https://launchpad.net/mailman.

Steve

On Wed, 04 Feb 2015 15:56:14 -0000, Mark Sapiro <mark@msapiro.net> wrote:

...

Malcolm Austen writes:

...

What I would really like is a (simple) way to trap the absence of a subject header but I think, we can (understandably) only trap on the content of something that is present :-( ...

In my production Mailman, I do it as part of the tests in a custom handler, but see the FAQ at <http://wiki.list.org/x/8683854> for a way to do it with header_filter_rules.

Thank you Mark, I had missed that in the FAQ (slaps wrist). It makes
perfect sense once explained!

= Malcolm.

-- Malcolm Austen <malcolm.austen@weald.org.uk> GENUKI trustee <genuki@weald.org.uk> Pedigree User Group <chairman@pugweb.org.uk> Oxfordshire FHS <webmaster@ofhs.org.uk> FFHS Communications Officer <communications@ffhs.org.uk>