99 lines
2.7 KiB
Perl
99 lines
2.7 KiB
Perl
package DDG::Goodie::Dewey;
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# ABSTRACT: Identify and find dewey decimal system numbers
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use strict;
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use DDG::Goodie;
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triggers any => 'dewey';
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zci answer_type => 'dewey_decimal';
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zci is_cached => 1;
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primary_example_queries 'dewey 644';
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secondary_example_queries 'etymology in the dewey decimal system', 'dewey decimal system 640s', 'dewey decimal system naturalism';
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description 'get the topic or reference number of a Dewey Decimal class';
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name 'Dewey';
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code_url 'https://github.com/duckduckgo/zeroclickinfo-goodies/blob/master/lib/DDG/Goodie/Dewey.pm';
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category 'reference';
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topics 'special_interest';
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attribution twitter => 'crazedpsyc',
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cpan => 'CRZEDPSYC' ;
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my %nums = share('dewey.txt')->slurp;
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my %types = reverse %nums;
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sub get_info {
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my($num) = @_;
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my $desc = $nums{"$num\n"} or return;
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chomp $desc;
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return $desc;
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}
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sub line {
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my($num) = @_;
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chomp $num;
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return "<td>$num</td><td> ".(get_info($num) or return)."</td>";
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}
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sub single_format {
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"$_[0] is $_[1] in the Dewey Decimal System.";
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}
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handle remainder => sub {
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return unless s/^(?:the)?\s*(?:decimal)?\s*(?:system)?\s*(?:numbers?|\#)?\s*
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(?:
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(\d{1,3})(?:\.\d+)?(s)? |
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([\w\s]+?)
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)
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\s*(?:in)?\s*(?:the)?\s*(?:decimal)?\s*(?:system)?$
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/defined $1?$1:$3/eix;
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my ($out_html, $out) = ("","");
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my $multi = $2;
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my $word = $3;
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if (defined $word) {
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return if lc($word) eq 'system'; # don't respond to "dewey decimal system"
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my @results = grep(/$word/i, keys %types);
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return unless @results;
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if (@results > 1) {
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$out_html .= "<tr>".line($types{$_})."</tr>" for @results;
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$multi = 1;
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} else {
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my $num = $types{$results[0]};
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chomp $num;
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$out .= single_format($num, lc(get_info($num) or return));
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$out_html = $out;
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}
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}
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else {
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$_ = sprintf "%03d", $_;
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unless ($multi) {
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$out .= single_format $_, lc((get_info($_) or return));
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$out_html = $out;
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}
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elsif (/\d00/) {
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for ($_..$_+99) {
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$out_html .= "<tr>" .(line($_) or next). "</tr>";
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}
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}
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elsif (/\d\d0/) {
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for ($_..$_+9) {
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$out_html .= "<tr>" .(line($_) or next). "</tr>";
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}
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}
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}
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$out_html =~ s/\[\[([^\]]+?)\|(.+?)\]\]/<a href="\/\?q=$1">$2<\/a>/g;
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$out_html =~ s/\[\[(.+?)\]\]/<a href="\/?q=$1">$1<\/a>/g;
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$out =~ s/\[\[.+?\|(.+?)\]\]/$1/g;
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$out =~ s/\[\[(.+?)\]\]/$1/g;
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return ($multi) ? "" : $out, html => ($multi) ? "<table cellpadding=1>$out_html</table>" : $out_html;
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};
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1;
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