1 | ###########################################################################
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2 | #
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3 | # List.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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26 | # 12/05/02 Added usage datastructure - John Thompson
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27 |
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28 | use BasClas;
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29 | package Browse;
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30 |
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31 | use sorttools;
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32 |
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33 | sub BEGIN {
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34 | @ISA = ('BasClas');
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35 | }
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36 |
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37 | my $options = { 'name' => "Browse",
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38 | 'desc' => "{Browse.desc}",
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39 | 'abstract' => "yes",
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40 | 'inherits' => "yes" };
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41 |
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42 | # sub print_usage {
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43 | # print STDERR "
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44 | # usage: classify Browse
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45 | # This classifier has no options (yet).
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46 | # ";
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47 | # }
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48 |
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49 | sub new {
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50 | my $class = shift (@_);
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51 | my $self = new BasClas($class, @_);
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52 |
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53 | # 14-05-02 To allow for proper inheritance of arguments - John Thompson
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54 | my $option_list = $self->{'option_list'};
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55 | push( @{$option_list}, $options );
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56 |
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57 | # classifier information
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58 | $self->{'collection'} = $ENV{'GSDLCOLLECTION'};
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59 |
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60 | $self->{'title'} = "Browse";
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61 |
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62 | return bless $self, $class;
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63 | }
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64 |
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65 | sub init {
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66 | my $self = shift (@_);
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67 |
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68 |
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69 | }
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70 |
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71 | sub classify {
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72 | my $self = shift (@_);
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73 |
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74 | }
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75 |
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76 | sub get_classify_info {
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77 | my $self = shift (@_);
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78 |
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79 |
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80 | # Return the information about the classifier that we'll later want to
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81 | # use to create macros when the Phind classifier document is displayed.
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82 | my %classifyinfo = ('thistype'=>'Invisible',
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83 | 'Title'=>$self->{'title'},
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84 | 'contains'=>[]);
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85 |
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86 | my $collection = $self->{'collection'};
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87 | my $url = "library?a=br&c=collection";
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88 | push (@{$classifyinfo{'contains'}}, {'OID'=>$url});
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89 |
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90 | return \%classifyinfo;
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91 |
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92 |
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93 | }
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94 |
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95 |
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96 | 1;
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