145 lines
4.9 KiB
Perl
145 lines
4.9 KiB
Perl
package DDG::Goodie::ChineseToPinyin;
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# ABSTRACT: Get Pinyin of a Chinese string.
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use strict;
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use utf8;
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use DDG::Goodie;
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use Lingua::Han::PinYin;
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zci answer_type => 'chinese_to_pinyin';
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zci is_cached => 1;
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triggers startend => 'pinyin', '拼音';
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# FROM https://github.com/lilydjwg/winterpy/blob/master/pylib/pinyintone.py
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# map (final) constanant+tone to tone+constanant
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my %mapConstTone2ToneConst = ('n1' => '1n',
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'n2' => '2n',
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'n3' => '3n',
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'n4' => '4n',
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'ng1' => '1ng',
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'ng2' => '2ng',
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'ng3' => '3ng',
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'ng4' => '4ng',
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'r1' => '1r',
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'r2' => '2r',
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'r3' => '3r',
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'r4' => '4r');
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# map vowel+vowel+tone to vowel+tone+vowel
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my %mapVowelVowelTone2VowelToneVowel = ('ai1' => 'a1i',
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'ai2' => 'a2i',
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'ai3' => 'a3i',
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'ai4' => 'a4i',
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'ao1' => 'a1o',
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'ao2' => 'a2o',
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'ao3' => 'a3o',
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'ao4' => 'a4o',
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'ei1' => 'e1i',
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'ei2' => 'e2i',
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'ei3' => 'e3i',
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'ei4' => 'e4i',
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'ou1' => 'o1u',
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'ou2' => 'o2u',
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'ou3' => 'o3u',
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'ou4' => 'o4u');
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# map vowel-number combination to unicode
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my %mapVowelTone2Unicode = ('a1' => 'ā',
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'a2' => 'á',
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'a3' => 'ǎ',
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'a4' => 'à',
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'e1' => 'ē',
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'e2' => 'é',
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'e3' => 'ě',
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'e4' => 'è',
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'i1' => 'ī',
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'i2' => 'í',
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'i3' => 'ǐ',
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'i4' => 'ì',
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'o1' => 'ō',
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'o2' => 'ó',
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'o3' => 'ǒ',
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'o4' => 'ò',
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'u1' => 'ū',
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'u2' => 'ú',
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'u3' => 'ǔ',
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'u4' => 'ù',
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'v1' => 'ǜ',
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'v2' => 'ǘ',
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'v3' => 'ǚ',
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'v4' => 'ǜ');
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# MAIN
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handle remainder_lc => sub {
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# return if content if empty
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return if /^\s*$/;
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# return if already have special pinyin character
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return if /[āáǎàēéěèīíǐìōóǒòūúǔùǜǘǚǜ]/;
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# return unless content have Chinese character or have number (e.g. 測試/ce4 shi4)
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return unless /[\p{Han}0-9]/;
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$_ = trim($_);
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# add a space after every chinese character in order to separate pinyin
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my $spacedChineseString = $_ =~ s/(\p{Han})/$1 /rg;
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# remove space before any punctuation to prevent something like "hao3 ！"
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$spacedChineseString = $spacedChineseString =~ s/(\p{Han}) (\p{P})/$1$2/rg;
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my $h2p = new Lingua::Han::PinYin(tone => 1);
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my $result = $h2p->han2pinyin($spacedChineseString);
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$result = ConvertTone($result);
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# if content doesn't contain Chinese and result doesn't contain special Pinyin character
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return if (!(/[\p{Han}]/) and $result !~ m/[āáǎàēéěèīíǐìōóǒòūúǔùǜǘǚǜ]/);
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return "Pinyin of $_ is \"$result\"",
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structured_answer => {
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data => {
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title => "$result",
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subtitle => "Pinyin of $_"
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},
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templates => {
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group => 'text'
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}
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};
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};
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# sub: convert e.g. ni3 hao3 to nǐ hǎo
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sub ConvertTone{
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print("Before convert tone: @_\n");
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# trim
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my $new = trim(@_);
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for my $key ( keys %mapConstTone2ToneConst ) {
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#print "$key: $mapConstTone2ToneConst{$key} \n";
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$new = $new =~ s/$key/$mapConstTone2ToneConst{$key}/rg;
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}
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for my $key ( keys %mapVowelVowelTone2VowelToneVowel ) {
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#print "$key: $mapVowelVowelTone2VowelToneVowel{$key} \n";
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$new = $new =~ s/$key/$mapVowelVowelTone2VowelToneVowel{$key}/rg;
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}
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for my $key ( keys %mapVowelTone2Unicode ) {
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#print "$key: $mapVowelTone2Unicode{$key} \n";
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$new = $new =~ s/$key/$mapVowelTone2Unicode{$key}/rg;
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}
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$new = $new =~ s/v/ü/rg;
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$new = $new =~ s/V/Ü/rg;
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print("After convert tone: $new\n");
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return "$new";
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}
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sub trim { my $s = shift; $s =~ s/^\s+|\s+$//g; return $s };
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1; |