[537] | 1 | ###########################################################################
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| 2 | #
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| 3 | # HTML.pm --
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| 4 | # A component of the Greenstone digital library software
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| 5 | # from the New Zealand Digital Library Project at the
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| 6 | # University of Waikato, New Zealand.
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| 7 | #
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| 8 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 9 | #
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| 10 | # This program is free software; you can redistribute it and/or modify
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| 11 | # it under the terms of the GNU General Public License as published by
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| 12 | # the Free Software Foundation; either version 2 of the License, or
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| 13 | # (at your option) any later version.
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| 14 | #
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| 15 | # This program is distributed in the hope that it will be useful,
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| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | # GNU General Public License for more details.
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| 19 | #
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| 20 | # You should have received a copy of the GNU General Public License
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| 21 | # along with this program; if not, write to the Free Software
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| 22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | #
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| 24 | ###########################################################################
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| 25 |
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[449] | 26 | # html classifier plugin - creates an empty classification
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| 27 | # that's simply a link to a web page
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| 28 | # options are:
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[2022] | 29 | # buttonname=Title -- (optional) the title field for this classification.
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[449] | 30 | # if not included title field 'Browse'
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| 31 | # url=url -- the url of the web page to link to
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| 32 |
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| 33 | package HTML;
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| 34 |
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[1483] | 35 | use BasClas;
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| 36 |
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| 37 | sub BEGIN {
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| 38 | @ISA = ('BasClas');
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| 39 | }
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| 40 |
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[1839] | 41 | sub print_usage {
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| 42 | print STDERR "
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| 43 | usage: classify AZList [options]
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| 44 | options:
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| 45 | -url X The url of the web page to link to.
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[2022] | 46 | -buttonname X (optional) the title field for this classification.
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[1839] | 47 | The default is 'Browse'
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| 48 |
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| 49 | HTML classifier plugin - creates classifier that is a link to a web page
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| 50 |
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| 51 | ";
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| 52 | }
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| 53 |
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[449] | 54 | sub new {
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[1839] | 55 | my $class = shift (@_);
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| 56 | my $self = new BasClas($class, @_);
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| 57 |
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[449] | 58 | my ($title, $url);
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[1839] | 59 |
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| 60 | if (!parsargv::parse(\@_,
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| 61 | q^url/.*/^, \$url,
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[2022] | 62 | q^buttonname/.*/Browse^, \$title,
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[1839] | 63 | "allow_extra_options")) {
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| 64 |
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| 65 | print STDERR "\nIncorrect options passed to $class, check your collect.cfg file\n";
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| 66 | &print_usage();
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| 67 | die "\n";
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[449] | 68 | }
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| 69 |
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[1483] | 70 | if (!defined $url) {
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| 71 | my $outhandle = $self->{'outhandle'};
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| 72 | print $outhandle "Error: HTML classifier contains no 'url' option\n";
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| 73 | die "\n";
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| 74 | }
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[449] | 75 |
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[1483] | 76 | $self->{'url'} = $url;
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| 77 | $self->{'title'} = $title;
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| 78 |
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| 79 | return bless $self, $class;
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[449] | 80 | }
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| 81 |
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| 82 | sub init {
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| 83 | my $self = shift (@_);
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| 84 | }
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| 85 |
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| 86 | sub classify {
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| 87 | my $self = shift (@_);
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| 88 | my ($doc_obj) = @_;
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| 89 |
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| 90 | # we don't do anything for individual documents
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| 91 | }
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| 92 |
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| 93 | sub get_classify_info {
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| 94 | my $self = shift (@_);
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| 95 |
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[717] | 96 | my %classifyinfo = ('thistype'=>'Invisible',
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| 97 | 'childtype'=>'HTML',
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[449] | 98 | 'Title'=>$self->{'title'},
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| 99 | 'contains'=>[]);
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| 100 |
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| 101 | push (@{$classifyinfo{'contains'}}, {'OID'=>$self->{'url'}});
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| 102 |
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| 103 | return \%classifyinfo;
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| 104 | }
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| 105 |
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| 106 |
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| 107 | 1;
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