82 lines
2.8 KiB
Raku
82 lines
2.8 KiB
Raku
package DDG::Goodie::CurrencyIn;
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# ABSTRACT: Return currency type(s) in given country
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# TODO: At the moment it return value only if user inputs the whole country name...
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# ...if user types "Salvador" instead of "El Salvador" then no results...
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# TODO: think about how often currency in countries changes?
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# Parser (for Wikipedia) is included in share directory...
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# In some countries there are more than one currency.
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# For that reason values in hash are stored as arrays. (loaded from .txt as comma separated values )
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# Example: %countries( "Zimbabwe"=>["A","B"], "Slovakia"=>["A"], ... )"
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# Working examples for queries:
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# What currency do I need in Egypt ?
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# What currency will I need for Zimbabwe
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# What is the currency used in Slovakia
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# currency in Russia
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# What type of currency do I need for Russia?
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use DDG::Goodie;
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use Locale::SubCountry;
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zci is_cached => 1;
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zci answer_type => "currency_in";
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triggers any => 'currency', 'currencies'; # User typed currency...
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# Countries are lowercased but input from user, too ... so those always match...
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# ...country is capitalized on output...
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my %countries = share('currency.txt')->slurp;
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sub clear_country_name {
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my $txt = shift;
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$txt =~ s/^\?$|\?$//g; # Query may end with "?". If so take it away.
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$txt =~ s/^\s+|\s+$//g; # Trim spaces before and after the country name
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$txt;
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}
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handle remainder => sub {
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if (/^.*(?:in|of|for)(?:\sthe)?\s(.*?)$/i) {
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my $country = clear_country_name(lc($1)); # Clear country name - white spaces, question mark..
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# handle two-letter country codes
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if ( $country =~ /^[a-z]{2}$/i ) {
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my $loc;
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eval { $loc = Locale::SubCountry->new(uc($country)) };
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return if $@ || !$loc;
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$country = lc($loc->country);
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}
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if (exists $countries{$country."\n"}){
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my $string_currency = $countries{$country."\n"}; # Load currencies as string (one line from .txt)
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my @currencies = split(',', $string_currency); # Split currencies into array
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my $count = $#currencies + 1; # Get number of currencies
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my $output_country = $country; # Pass country name to the output_country
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$output_country =~ s/\b(\w)/\U$1/g; # so it can by capitalized
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my $result = $count == 1 ? "The currency in $output_country is the " : "Currencies in $output_country are: \n";
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# Append result with all currencies
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for (@currencies) {
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chomp;
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$result .= "$_\n";
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}
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chomp $result;
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my $html = $result;
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$html =~ s|\n|<br/>|g;
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return $result, html=>$html;
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}
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}
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return;
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};
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1;
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