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author | Eric Wong <e@80x24.org> | 2017-01-26 02:09:36 +0000 |
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committer | Eric Wong <e@80x24.org> | 2017-01-26 03:22:54 +0000 |
commit | 7e40887e8d2bef4126b4a3680594860a3b2fd67c (patch) | |
tree | 222b7fbbf7457eac086b193384bf7de3dbb08ce4 /lib/PublicInbox/Filter/SubjectTag.pm | |
parent | a465cc132b8d1ad96dbd0f51ad6da2ce75c79568 (diff) | |
download | public-inbox-7e40887e8d2bef4126b4a3680594860a3b2fd67c.tar.gz |
Some mailing lists add annoying tags into the Subject line which discourages readers from doing proper mail organization on the client side. They also waste precious screen space and attention span. Remove them from our archives to reduce clutter.
Diffstat (limited to 'lib/PublicInbox/Filter/SubjectTag.pm')
-rw-r--r-- | lib/PublicInbox/Filter/SubjectTag.pm | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/lib/PublicInbox/Filter/SubjectTag.pm b/lib/PublicInbox/Filter/SubjectTag.pm new file mode 100644 index 00000000..1d281425 --- /dev/null +++ b/lib/PublicInbox/Filter/SubjectTag.pm @@ -0,0 +1,33 @@ +# Copyright (C) 2017 all contributors <meta@public-inbox.org> +# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt> + +# Filter for various [tags] in subjects +package PublicInbox::Filter::SubjectTag; +use strict; +use warnings; +use base qw(PublicInbox::Filter::Base); + +sub new { + my ($class, %opts) = @_; + my $tag = delete $opts{-tag}; + die "tag not defined!\n" unless defined $tag && $tag ne ''; + my $self = $class->SUPER::new(%opts); + $self->{tag_re} = qr/\A\s*(re:\s+|)\Q$tag\E\s*/i; + $self; +} + +sub scrub { + my ($self, $mime) = @_; + my $subj = $mime->header('Subject'); + $subj =~ s/$self->{tag_re}/$1/; # $1 is "Re: " + $mime->header_str_set('Subject', $subj); + $self->ACCEPT($mime); +} + +# no suffix/article rejection for mirrors +sub delivery { + my ($self, $mime) = @_; + $self->scrub($mime); +} + +1; |