.\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" Set up some character translations and predefined strings.  \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote.  \*(C+ will
.\" give a nicer C++.  Capital omega is used to do unbreakable dashes and
.\" therefore won't be available.  \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
.    ds -- \(*W-
.    ds PI pi
.    if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
.    if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\"  diablo 12 pitch
.    ds L" ""
.    ds R" ""
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds -- \|\(em\|
.    ds PI \(*p
.    ds L" ``
.    ds R" ''
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is turned on, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{
.    if \nF \{
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear.  Run.  Save yourself.  No user-serviceable parts.
.    \" fudge factors for nroff and troff
.if n \{\
.    ds #H 0
.    ds #V .8m
.    ds #F .3m
.    ds #[ \f1
.    ds #] \fP
.\}
.if t \{\
.    ds #H ((1u-(\\\\n(.fu%2u))*.13m)
.    ds #V .6m
.    ds #F 0
.    ds #[ \&
.    ds #] \&
.\}
.    \" simple accents for nroff and troff
.if n \{\
.    ds ' \&
.    ds ` \&
.    ds ^ \&
.    ds , \&
.    ds ~ ~
.    ds /
.\}
.if t \{\
.    ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
.    ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
.    ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
.    ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
.    ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
.    ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
.\}
.    \" troff and (daisy-wheel) nroff accents
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
.ds ae a\h'-(\w'a'u*4/10)'e
.ds Ae A\h'-(\w'A'u*4/10)'E
.    \" corrections for vroff
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
.    \" for low resolution devices (crt and lpr)
.if \n(.H>23 .if \n(.V>19 \
\{\
.    ds : e
.    ds 8 ss
.    ds o a
.    ds d- d\h'-1'\(ga
.    ds D- D\h'-1'\(hy
.    ds th \o'bp'
.    ds Th \o'LP'
.    ds ae ae
.    ds Ae AE
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "Mail::Filter 3"
.TH Mail::Filter 3 "2016-05-19" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Mail::Filter \- Filter mail through multiple subroutines
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& use Mail::Filter;
\&    
\& my $filter = Mail::Filter\->new( \e&filter1, \e&filter2 );
\&    
\& my $mail   = Mail::Internet\->new( [<>] );
\& my $mail   = $filter\->filter($mail);
\&
\& my $folder = Mail::Folder\->new( .... );
\& my $filter\->filter($folder);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\f(CW\*(C`Mail::Filter\*(C'\fR provides an interface to filtering Email through multiple
subroutines.
.PP
\&\f(CW\*(C`Mail::Filter\*(C'\fR filters mail by calling each filter subroutine in turn. Each
filter subroutine is called with two arguments, the first is the filter
object and the second is the mail or folder object being filtered.
.PP
The result from each filter sub is passed to the next filter as the mail
object. If a filter subroutine returns undef, then \f(CW\*(C`Mail::Filter\*(C'\fR will abort
and return immediately.
.PP
The function returns the result from the last subroutine to operate on the 
mail object.
.SH "METHODS"
.IX Header "METHODS"
.SS "Constructors"
.IX Subsection "Constructors"
.IP "Mail::Filter\->\fBnew\fR( [\s-1FILTER\s0 [, ... ]] )" 4
.IX Item "Mail::Filter->new( [FILTER [, ... ]] )"
Create a new \f(CW\*(C`Mail::Filter\*(C'\fR object with the given filter subroutines. Each
filter may be either a code reference or the name of a method to call
on the <Mail::Filter> object.
.SS "Accessors"
.IX Subsection "Accessors"
.ie n .IP "$obj\->\fBadd\fR( \s-1FILTER\s0 [, \s-1FILTER ...\s0] )" 4
.el .IP "\f(CW$obj\fR\->\fBadd\fR( \s-1FILTER\s0 [, \s-1FILTER ...\s0] )" 4
.IX Item "$obj->add( FILTER [, FILTER ...] )"
Add the given filters to the end of the filter list.
.SS "Processing"
.IX Subsection "Processing"
.ie n .IP "$obj\->\fBfilter\fR(MAIL-OBJECT | MAIL-FOLDER)" 4
.el .IP "\f(CW$obj\fR\->\fBfilter\fR(MAIL-OBJECT | MAIL-FOLDER)" 4
.IX Item "$obj->filter(MAIL-OBJECT | MAIL-FOLDER)"
If the first argument is a \f(CW\*(C`Mail::Internet\*(C'\fR object, then this object will
be passed through the filter list. If the first argument is a \f(CW\*(C`Mail::Folder\*(C'\fR
object, then each message in turn will be passed through the filter list.
.ie n .IP "$obj\->\fBfolder\fR()" 4
.el .IP "\f(CW$obj\fR\->\fBfolder\fR()" 4
.IX Item "$obj->folder()"
While the \f(CW\*(C`filter\*(C'\fR method is called with a \f(CW\*(C`Mail::Folder\*(C'\fR object, these
filter subroutines can call this method to obtain the folder object that is
being processed.
.ie n .IP "$obj\->\fBmsgnum\fR()" 4
.el .IP "\f(CW$obj\fR\->\fBmsgnum\fR()" 4
.IX Item "$obj->msgnum()"
If the \f(CW\*(C`filter\*(C'\fR method is called with a \f(CW\*(C`Mail::Folder\*(C'\fR object, then the
filter subroutines may call this method to obtain the message number
of the message that is being processed.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
This module is part of the MailTools distribution,
\&\fIhttp://perl.overmeer.net/mailtools/\fR.
.SH "AUTHORS"
.IX Header "AUTHORS"
The MailTools bundle was developed by Graham Barr.  Later, Mark
Overmeer took over maintenance without commitment to further development.
.PP
Mail::Cap by Gisle Aas <aas@oslonett.no>.
Mail::Field::AddrList by Peter Orbaek <poe@cit.dk>.
Mail::Mailer and Mail::Send by Tim Bunce <Tim.Bunce@ig.co.uk>.
For other contributors see ChangeLog.
.SH "LICENSE"
.IX Header "LICENSE"
Copyrights 1995\-2000 Graham Barr <gbarr@pobox.com> and
2001\-2007 Mark Overmeer <perl@overmeer.net>.
.PP
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
See \fIhttp://www.perl.com/perl/misc/Artistic.html\fR