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[leafnode-list] Advanced filtering: Unfold headers?
Hi,
my impression is (please CMIIW) that leafnode's (2.0.0.alpha*)
filtering doesn't unfold headers.
Simple example:
,----[ filters ]
| newsgroups = gmane.test
| pattern = ^Subject:\s*leafnode filter
| action = -1
| pattern = ^References:.*7g7k6bzkqm.fsf@xxxxxxxxxxxxxxxx
| action = select
`----
,----[ /var/spool/news/gmane/test/262 ]
| Subject: leafnode filterfile (was: =?iso-8859-1?q?Pr=F8ve=29?=
| Date: Tue, 22 Jul 2003 18:06:51 +0200
| Message-ID: <v965luzgtg.fsf_-_@xxxxxxxxxxxxxxxxxxxxxxxxxx>
| References: <7gfzl017bn.fsf@xxxxxxxxxxxxxxxx> <7g7k6c12x0.fsf@xxxxxxxxxxxxxxxx>
| <7g3ch010gz.fsf@xxxxxxxxxxxxxxxx> <7gy8yrzujs.fsf@xxxxxxxxxxxxxxxx>
| <7gu19fzocb.fsf@xxxxxxxxxxxxxxxx> <7gptk3zmw6.fsf@xxxxxxxxxxxxxxxx>
| <7gk7abzm18.fsf@xxxxxxxxxxxxxxxx> <7g7k6bzkqm.fsf@xxxxxxxxxxxxxxxx>
`----
,----[ applyfilter -v -n gmane.test ]
| 262 would be deleted
`----
Is it somehow possible to unfold headers for filtering? Or can I use
a pcre that includes line endings?
*time passes*
Reading pcre(3), it seems that PCRE_MULTILINE could be helpful (and
fortunately filterutil.c uses it).
| pattern = ^References:\s*(.|\n)*7g7k6bzkqm.fsf@xxxxxxxxxxxxxxxx
^^^^^^
This seems to do the trick. But using "\s*(.|\n)*" looks strange. Is
this the right thing to do or is there a better way?
PCRE_MULTILINE [1] requires that "\n", "^" _or_ "$" appears in the
pattern. So what's wrong with the following expression?
| pattern = ^References:.*7g7k6bzkqm.fsf@xxxxxxxxxxxxxxxx
| pattern = ^References:.*7g7k6bzkqm.fsf@xxxxxxxxxxxxxxxxx*$
Bye, Reiner.
P.S.: I know that I should better use "\." instead of ".".
[1]
,----[ pcre(3) ]
| When PCRE_MULTILINE it is set, the "start of line" and "end
| of line" constructs match immediately following or
| immediately before any newline in the subject string,
| respectively, as well as at the very start and end. This is
| equivalent to Perl's /m option. If there are no "\n"
| characters in a subject string, or no occurrences of ^ or $
| in a pattern, setting PCRE_MULTILINE has no effect.
`----
--
,,,
(o o)
---ooO-(_)-Ooo--- PGP key available via WWW http://rsteib.home.pages.de/
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