56 lines
1.2 KiB
Perl
56 lines
1.2 KiB
Perl
package DDG::Goodie::Frequency;
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# ABSTRACT: Displays frequency of alphabet character (a-z)
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use DDG::Goodie;
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triggers start => 'frequency', 'freq';
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primary_example_queries 'frequency of all characters in testing';
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secondary_example_queries 'frequency of B in battle', 'frequency of all in testing 1234 ABC!';
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description 'calculate the frequency of characters in a string';
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name 'Frequency';
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code_url 'https://github.com/duckduckgo/zeroclickinfo-goodies/blob/master/lib/DDG/Goodie/Frequency.pm';
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category 'calculations';
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topics 'geek';
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attribution github => [ 'http://github.com/unlisted', 'Morgan' ];
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handle remainder => sub {
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if ($_ =~ /^of ([a-z]|(?:all ?|)(?:letters|characters|chars|)) in (.+)/i)
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{
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my $collect = lc $1;
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my $target_str = lc $2;
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# warn qq($collect\t$target_str\n);
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my $count = 0;
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my %freq;
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my @chars = split //, $target_str;
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foreach (@chars)
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{
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if ($_ =~ /[a-z]/)
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{
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if ($collect =~ /all|letters|characters|chars/) { ++$freq{$_}; }
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else { ++$freq{$_} if $_ eq $collect; }
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++$count;
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};
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};
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my @out;
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foreach my $key (keys %freq)
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{
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push @out, join ":", $key, $freq{$key} . "/" . $count;
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};
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return "Frequency: " . join ' ',sort(@out) if @out;
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};
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return;
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};
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zci is_cached => 1;
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1;
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