1 | ###########################################################################
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2 | #
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3 | # AZCompactSectionList.pm --
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4 | #
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5 | # Experimental AZCompactList with fixes to handle section-level metadata
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6 | #
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7 | ###########################################################################
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8 |
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9 | package AZCompactSectionList;
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10 |
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11 | use AZCompactList;
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12 |
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13 | sub BEGIN {
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14 | @ISA = ('AZCompactList');
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15 | }
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16 |
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17 | #
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18 | # override reinit() & reclassify() to demonstrate possible bug fixes
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19 | # (search for SECTIONFIX? to see lines changed from AZCompactList.pm)
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20 | #
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21 | sub reinit
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22 | {
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23 | my ($self,$classlist_ref) = @_;
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24 |
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25 | my %mtfreq = ();
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26 | my @single_classlist = ();
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27 | my @multiple_classlist = ();
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28 |
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29 | # find out how often each metavalue occurs
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30 | map
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31 | {
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32 | my $mv;
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33 | foreach $mv (@{$self->{'listmetavalue'}->{$_}} )
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34 | {
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35 | $mtfreq{$mv}++;
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36 | }
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37 | } @$classlist_ref;
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38 |
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39 | # use this information to split the list: single metavalue/repeated value
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40 | map
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41 | {
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42 | my $i = 1;
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43 | my $metavalue;
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44 | foreach $metavalue (@{$self->{'listmetavalue'}->{$_}})
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45 | {
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46 | if ($mtfreq{$metavalue} >= $self->{'mingroup'})
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47 | {
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48 | push(@multiple_classlist,[$_,$i,$metavalue]);
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49 | }
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50 | else
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51 | {
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52 | push(@single_classlist,[$_,$metavalue]);
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53 | $metavalue =~ tr/[A-Z]/[a-z]/;
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54 | $self->{'reclassifylist'}->{"Metavalue_$i.$_"} = $metavalue;
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55 | }
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56 | $i++;
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57 | }
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58 | } @$classlist_ref;
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59 |
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60 |
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61 | # Setup sub-classifiers for multiple list
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62 |
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63 | $self->{'classifiers'} = {};
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64 |
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65 | my $pm;
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66 | foreach $pm ("List", "SectionList")
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67 | {
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68 | my $listname
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69 | = &util::filename_cat($ENV{'GSDLHOME'},"perllib/classify/$pm.pm");
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70 | if (-e $listname) { require $listname; }
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71 | else
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72 | {
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73 | my $outhandle = $self->{'outhandle'};
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74 | print $outhandle "AZCompactList ERROR - couldn't find classifier \"$listname\"\n";
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75 | die "\n";
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76 | }
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77 | }
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78 |
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79 | # Create classifiers objects for each entry >= mingroup
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80 | my $metavalue;
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81 | foreach $metavalue (keys %mtfreq)
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82 | {
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83 | if ($mtfreq{$metavalue} >= $self->{'mingroup'})
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84 | {
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85 | my $listclassobj;
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86 | my $doclevel = $self->{'doclevel'};
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87 | my $metaname = $self->{'metaname'};
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88 | my @metaname_list = split('/',$metaname);
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89 | $metaname = shift(@metaname_list);
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90 | if (@metaname_list==0)
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91 | {
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92 | my @args;
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93 | push @args, ("-metadata", "$metaname");
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94 | # buttonname is also used for the node's title
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95 | push @args, ("-buttonname", "$metavalue");
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96 | push @args, ("-sort", "Date");
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97 |
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98 | if ($doclevel =~ m/^top(level)?/i)
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99 | {
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100 | eval ("\$listclassobj = new List(\@args)"); warn $@ if $@;
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101 | }
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102 | else
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103 | {
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104 | # SECTIONFIX?
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105 | #eval ("\$listclassobj = new SectionList($args)");
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106 | eval ("\$listclassobj = new SectionList(\@args)");
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107 | }
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108 | }
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109 | else
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110 | {
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111 | $metaname = join('/',@metaname_list);
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112 |
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113 | my @args;
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114 | push @args, ("-metadata", "$metaname");
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115 | # buttonname is also used for the node's title
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116 | push @args, ("-buttonname", "$metavalue");
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117 | push @args, ("-doclevel", "$doclevel");
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118 | push @args, "-recopt";
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119 |
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120 | # SECTIONFIX?
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121 | #eval ("\$listclassobj = new AZCompactList($args)");
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122 | eval ("\$listclassobj = new AZCompactList(\@args)");
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123 | }
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124 | if ($@) {
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125 | my $outhandle = $self->{'outhandle'};
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126 | print $outhandle "$@";
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127 | die "\n";
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128 | }
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129 |
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130 | $listclassobj->init();
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131 |
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132 | if (defined $metavalue && $metavalue =~ /\w/)
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133 | {
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134 | my $formatted_node = $metavalue;
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135 | if ($self->{'metaname'} =~ m/^Creator(:.*)?$/)
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136 | {
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137 | &sorttools::format_string_name_english(\$formatted_node);
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138 | }
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139 | else
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140 | {
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141 | &sorttools::format_string_english(\$formatted_node);
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142 | }
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143 |
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144 | $self->{'classifiers'}->{$metavalue}
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145 | = { 'classifyobj' => $listclassobj,
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146 | 'formattednode' => $formatted_node };
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147 | }
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148 | }
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149 | }
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150 |
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151 |
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152 | return (\@single_classlist,\@multiple_classlist);
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153 | }
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154 |
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155 |
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156 | sub reclassify
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157 | {
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158 | my ($self,$multiple_cl_ref) = @_;
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159 |
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160 | # Entries in the current classify list that are "book nodes"
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161 | # should be recursively classified.
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162 | #--
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163 | foreach $dm_pair (@$multiple_cl_ref)
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164 | {
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165 | my ($doc_OID,$mdoffset,$metavalue) = @$dm_pair;
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166 | my $listclassobj;
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167 |
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168 | # find metavalue in list of sub-classifiers
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169 | my $found = 0;
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170 | my $node_name;
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171 | foreach $node_name (keys %{$self->{'classifiers'}})
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172 | {
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173 | $resafe_node_name = $node_name;
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174 | $resafe_node_name =~ s/(\(|\)|\[|\]|\{|\}|\^|\$|\.|\+|\*|\?|\|)/\\$1/g;
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175 | if ($metavalue =~ m/^$resafe_node_name$/i)
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176 | {
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177 | my ($doc_obj,$date) = @{$self->{'reclassify'}->{$doc_OID}};
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178 |
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179 | ## date appears to not be used in classifier call ####
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180 |
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181 | # SECTIONFIX? section must include multiple levels, e.g. '1.12'
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182 | #if ($doc_OID =~ m/^.*\.(\d+)$/)
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183 | if ($doc_OID =~ m/^[^\.]*\.([\d\.]+)$/)
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184 | {
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185 | $self->{'classifiers'}->{$node_name}->{'classifyobj'}
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186 | # SECTIONFIX? classify can't handle multi-level section
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187 | #->classify($doc_obj, "Section=$1");
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188 | ->classify_section($1, $doc_obj, $date);
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189 | }
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190 | else
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191 | {
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192 | $self->{'classifiers'}->{$node_name}->{'classifyobj'}
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193 | ->classify($doc_obj);
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194 | }
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195 |
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196 | $found = 1;
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197 | last;
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198 | }
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199 | }
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200 |
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201 | if (!$found)
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202 | {
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203 | print $outhandle "Warning: AZCompactList::reclassify ";
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204 | print $outhandle "could not find sub-node for $metavalue with doc_OID $doc_OID\n";
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205 | }
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206 | }
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207 | }
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208 |
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209 | 1;
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