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package SL::Helper::UNECERecommendation20;
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use strict;
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use warnings;
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use utf8;
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use Exporter qw(import);
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our @EXPORT_OK = qw(map_name_to_alpha_2_code);
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use List::Util qw(first);
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my @mappings = (
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# space and time
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# areas
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[ 'MTK', qr{^(?:m²|qm|quadrat *meter|quadrat *metre)$}i ],
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# distances
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[ 'CMT', qr{^(?:cm|centi *meter|centi *metre)$}i ],
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[ 'MTR', qr{^(?:m|meter|metre)$}i ],
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[ 'KMT', qr{^(?:km|kilo *meter|kilo *metre)$}i ],
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# durations
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[ 'SEC', qr{^(?:s|sec|second|sek|sekunde)$}i ],
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[ 'MIN', qr{^min(?:ute)?$}i ],
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[ 'HUR', qr{^(?:h(?:our)?|std(?:unde)?)$}i ],
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[ 'DAY', qr{^(?:day|tag)$}i ],
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[ 'MON', qr{^mon(?:th|at|atlich)?$}i ],
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[ 'QAN', qr{^quart(?:er|al|alsweise)?$}i ],
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[ 'ANN', qr{^(?:yearly|annually|jährlich|Jahr)?$}i ],
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# mass
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[ 'MGM', qr{^(?:mg|milli *gramm?)$}i ],
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[ 'GRM', qr{^(?:g|gramm?)$}i ],
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[ 'KGM', qr{^(?:kg|kilo *gramm?)$}i ],
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[ 'KTN', qr{^(?:t|tonne|kilo *tonne)$}i ],
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# volumes
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[ 'MLT', qr{^(?:ml|milli *liter|milli *litre)$}i ],
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[ 'LTR', qr{^(?:l|liter|litre)$}i ],
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# miscellaneous
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[ 'C62', qr{^(?:stck|stück|pieces?|pc|psch|pauschal)$}i ],
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);
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sub map_name_to_code {
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my ($unit) = @_;
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return undef if ($unit // '') eq '';
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my $code = first { $unit =~ $_->[1] } @mappings;
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return $code->[0] if $code;
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no warnings 'once';
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$::lxdebug->message(LXDebug::WARN(), "UNECERecommendation20::map_name_code: no mapping found for '$unit'");
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return undef;
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}
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1;
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