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# This code is part of Perl distribution Mail-Box version 4.01.
# The POD got stripped from this file by OODoc version 3.05.
# For contributors see file ChangeLog.
# This software is copyright (c) 2001-2025 by Mark Overmeer.
# This is free software; you can redistribute it and/or modify it under
# the same terms as the Perl 5 programming language system itself.
# SPDX-License-Identifier: Artistic-1.0-Perl OR GPL-1.0-or-later
package Mail::Box::Search;{
our $VERSION = '4.01';
}
use parent 'Mail::Reporter';
use strict;
use warnings;
use Log::Report 'mail-box', import => [ qw/__x error/ ];
#--------------------
sub init($)
{ my ($self, $args) = @_;
$self->SUPER::init($args);
my $in = $args->{in} || 'BODY';
@$self{ qw/MBS_check_head MBS_check_body/ }
= $in eq 'BODY' ? (0,1)
: $in eq 'HEAD' ? (1,0)
: $in eq 'MESSAGE' ? (1,1)
: error __x"search in BODY, HEAD or MESSAGE, not {what UNKNOWN}.", what => $in;
! $self->{MBS_check_head} || $self->can('inHead') or error __x"cannot search in header.";
! $self->{MBS_check_body} || $self->can('inBody') or error __x"cannot search in body.";
my $deliver = $args->{deliver};
$self->{MBS_deliver}
= ref $deliver eq 'CODE' ? sub { $deliver->($self, $_[0]) }
: !defined $deliver ? undef
: $deliver eq 'DELETE' ? sub { $_[0]->{part}->toplevel->label(deleted => 1) }
: error __x"don't know how to deliver results in {what UNKNOWN}.", what => $deliver;
my $logic = $args->{logical} || 'REPLACE';
$self->{MBS_negative} = $logic =~ s/\s*NOT\s*$//;
$self->{MBS_logical} = $logic;
$self->{MBS_label} = $args->{label};
$self->{MBS_binaries} = $args->{binaries} || 0;
$self->{MBS_limit} = $args->{limit} || 0;
$self->{MBS_decode} = $args->{decode} || 1;
$self->{MBS_no_deleted} = not $args->{deleted};
$self->{MBS_delayed} = exists $args->{delayed} ? $args->{delayed} : 1;
$self->{MBS_multiparts} = exists $args->{multiparts} ? $args->{multiparts} : 1;
$self;
}
#--------------------
sub deliver() { $_[0]->{MBS_deliver} }
sub doMultiparts() { $_[0]->{MBS_multiparts} }
sub parseDelayed() { $_[0]->{MBS_delayed} }
sub skipDeleted() { $_[0]->{MBS_no_deleted} }
#--------------------
sub search(@)
{ my ($self, $object) = @_;
my $label = $self->{MBS_label};
my $limit = $self->{MBS_limit};
my @messages
= ref $object eq 'ARRAY' ? @$object
: $object->isa('Mail::Box') ? $object->messages
: $object->isa('Mail::Message') ? ($object)
: $object->isa('Mail::Box::Thread::Node') ? $object->threadMessages
: error __x"expect messages to search, not {what UNKNOWN}.", what => $object;
my $take = 0;
if($limit < 0) { $take = -$limit; @messages = reverse @messages }
elsif($limit > 0) { $take = $limit }
elsif(!defined $label && !wantarray && !$self->deliver) {$take = 1 }
my $logic = $self->{MBS_logical};
my @selected;
my $count = 0;
foreach my $message (@messages)
{ next if $self->skipDeleted && $message->isDeleted;
next unless $self->parseDelayed || !$message->isDelayed;
my $set = defined $label ? $message->label($label) : 0;
my $selected
= $set && $logic eq 'OR' ? 1
: !$set && $logic eq 'AND' ? 0
: $self->{MBS_negative} ? ! $self->searchPart($message)
: $self->searchPart($message);
$message->label($label => $selected) if defined $label;
if($selected)
{ push @selected, $message;
$count++;
last if $take && $count == $take;
}
}
$limit < 0 ? reverse @selected : @selected;
}
sub searchPart($)
{ my ($self, $part) = @_;
my $matched = 0;
$matched = $self->inHead($part, $part->head)
if $self->{MBS_check_head};
return $matched unless $self->{MBS_check_body};
return $matched if $matched && !$self->deliver;
my $body = $part->body;
my @bodies;
# Handle multipart parts.
if($body->isMultipart)
{ $self->doMultiparts or return $matched;
@bodies = ($body->preamble, $body->epilogue);
foreach my $piece (grep defined, $body->parts)
{ next if $piece->isDelayed && ! $self->parseDelayed;
$matched += $self->searchPart($piece);
return $matched if $matched && !$self->deliver;
}
}
elsif($body->isNested)
{ $self->doMultiparts or return $matched;
$matched += $self->searchPart($body->nested);
}
else
{ @bodies = ($body);
}
# Handle normal bodies.
foreach (grep defined, @bodies)
{ next if !$self->{MBS_binaries} && $_->isBinary;
my $body = $self->{MBS_decode} ? $_->decoded : $_;
my $inbody = $self->inBody($part, $body);
$matched += $inbody;
}
$matched;
}
sub inHead(@) { $_[0]->notImplemented }
sub inBody(@) { $_[0]->notImplemented }
#--------------------
sub printMatch($) { $_[0]->notImplemented }
1;
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