package SWISH::Filters::ppt2txt;
use strict;
use vars qw( $VERSION @ISA );
$VERSION = '0.18';
@ISA = ('SWISH::Filters::Base');
sub new {
my $class = shift;
my $self = bless {
mimetypes => [qr!application/vnd.ms-powerpoint!],
priority => 45, # lower than html filter
}, $class;
# check for helpers
return $self->set_programs('catppt');
}
sub filter {
my ( $self, $doc ) = @_;
my $content = $self->run_catppt( $doc->fetch_filename ) || return;
# update the document's content type
$doc->set_content_type('text/plain');
# return the document
return \$content;
}
1;
__END__
=head1 NAME
SWISH::Filters::ppt2txt - convert PowerPoint docs to text using catppt
=head1 DESCRIPTION
This is a plug-in module that uses the C<catppt> program to convert MS PowerPoint documents
to text for indexing by Swish-e. C<catppt> is part of the C<catdoc> package
and can be downloaded from:
http://www.45.free.net/~vitus/software/catdoc/
The program C<catppt> must be installed and in your PATH.
=head1 BUGS
This filter does not specify input or output character encodings.
A minor optimization during spidering (i.e. when docs are in memory instead of on disk)
would be to use open2() call to let catdoc read from stdin instead of from a file.
=head1 AUTHOR
Peter Karman perl@peknet.com
=head1 SEE ALSO
L<SWISH::Filter>