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<?php |
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namespace Overtrue\Pinyin; |
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class Converter |
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{ |
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private const SEGMENTS_COUNT = 10; |
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private const WORDS_PATH = __DIR__.'/../data/words-%s.php'; |
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private const CHARS_PATH = __DIR__.'/../data/chars.php'; |
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private const SURNAMES_PATH = __DIR__.'/../data/surnames.php'; |
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public const TONE_STYLE_DEFAULT = 'default'; |
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public const TONE_STYLE_NUMBER = 'number'; |
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public const TONE_STYLE_NONE = 'none'; |
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protected bool $polyphonic = false; |
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protected bool $asSurname = false; |
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protected bool $noWords = false; |
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protected string $yuTo = 'yu'; |
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protected string $toneStyle = self::TONE_STYLE_DEFAULT; |
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protected array $regexps = [ |
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'separator' => '\p{Z}', |
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'mark' => '\p{M}', |
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'tab' => "\t" |
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]; |
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public const REGEXPS = [ |
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'number' => '0-9', |
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'alphabet' => 'a-zA-Z', |
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// 中文不带符号 |
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'hans' => '\x{3007}\x{2E80}-\x{2FFF}\x{3100}-\x{312F}\x{31A0}-\x{31EF}\x{3400}-\x{4DBF}\x{4E00}-\x{9FFF}\x{F900}-\x{FAFF}', |
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// 符号: !"#$%&'()*+,-./:;<=>?@[\]^_{|}~` |
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'punctuation' => '\p{P}', |
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]; |
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public function __construct() |
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{ |
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$this->regexps = \array_merge($this->regexps, self::REGEXPS); |
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} |
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public static function make(): static |
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{ |
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return new static(); |
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} |
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public function polyphonic(): static |
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{ |
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$this->polyphonic = true; |
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return $this; |
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} |
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public function surname(): static |
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{ |
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$this->asSurname = true; |
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return $this; |
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} |
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public function noWords(): static |
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{ |
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$this->noWords = true; |
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return $this; |
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} |
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public function onlyHans(): static |
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{ |
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// 中文汉字不含符号 |
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$this->regexps['hans'] = self::REGEXPS['hans']; |
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return $this->noAlpha()->noNumber()->noPunctuation(); |
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} |
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public function noAlpha(): static |
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{ |
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unset($this->regexps['alphabet']); |
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return $this; |
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} |
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public function noNumber(): static |
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{ |
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unset($this->regexps['number']); |
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return $this; |
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} |
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public function noPunctuation(): static |
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{ |
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unset($this->regexps['punctuation']); |
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return $this; |
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} |
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public function withToneStyle(string $toneStyle): static |
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{ |
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$this->toneStyle = $toneStyle; |
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return $this; |
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} |
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public function noTone(): static |
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{ |
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$this->toneStyle = self::TONE_STYLE_NONE; |
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return $this; |
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} |
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public function useNumberTone(): static |
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{ |
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$this->toneStyle = self::TONE_STYLE_NUMBER; |
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return $this; |
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} |
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public function yuToV(): static |
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{ |
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$this->yuTo = 'v'; |
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return $this; |
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} |
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public function yuToU(): static |
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{ |
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$this->yuTo = 'u'; |
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return $this; |
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} |
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public function when(bool $condition, callable $callback): static |
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{ |
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if ($condition) { |
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$callback($this); |
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} |
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return $this; |
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} |
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public function convert(string $string, callable $beforeSplit = null): Collection |
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{ |
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// 把原有的数字和汉字分离，避免拼音转换时被误作声调 |
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$string = preg_replace_callback('~[a-z0-9_-]+~i', function ($matches) { |
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return "\t" . $matches[0]; |
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}, $string); |
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// 过滤掉不保留的字符 |
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$string = \preg_replace(\sprintf('~[^%s]~u', \implode($this->regexps)), '', $string); |
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// 多音字 |
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if ($this->polyphonic) { |
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return $this->convertAsChars($string, true); |
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} |
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if ($this->noWords) { |
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return $this->convertAsChars($string); |
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} |
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// 替换姓氏 |
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if ($this->asSurname) { |
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$string = $this->convertSurname($string); |
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} |
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for ($i = 0; $i < self::SEGMENTS_COUNT; $i++) { |
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$string = strtr($string, require sprintf(self::WORDS_PATH, $i)); |
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} |
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return $this->split($beforeSplit ? $beforeSplit($string) : $string); |
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} |
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public function convertAsChars(string $string, bool $polyphonic = false): Collection |
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{ |
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$map = require self::CHARS_PATH; |
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// split string as chinese chars |
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$chars = preg_split('//u', $string, -1, PREG_SPLIT_NO_EMPTY); |
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$items = []; |
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foreach ($chars as $char) { |
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if (isset($map[$char])) { |
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if ($polyphonic) { |
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$items[$char] = \array_map(fn ($pinyin) => $this->formatTone($pinyin, $this->toneStyle), $map[$char]); |
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} else { |
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$items[$char] = $this->formatTone($map[$char][0], $this->toneStyle); |
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} |
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} |
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} |
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return new Collection($items); |
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} |
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protected function convertSurname(string $name): string |
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{ |
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static $surnames = null; |
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$surnames ??= require self::SURNAMES_PATH; |
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foreach ($surnames as $surname => $pinyin) { |
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if (\str_starts_with($name, $surname)) { |
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return $pinyin . \mb_substr($name, \mb_strlen($surname)); |
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} |
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} |
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return $name; |
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} |
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protected function split(string $item): Collection |
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{ |
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$items = \array_values(array_filter(preg_split('/\s+/i', $item))); |
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foreach ($items as $index => $item) { |
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$items[$index] = $this->formatTone($item, $this->toneStyle); |
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} |
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return new Collection($items); |
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} |
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protected function formatTone(string $pinyin, string $style): string |
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{ |
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$replacements = [ |
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'üē' => ['ue', 1], 'üé' => ['ue', 2], 'üě' => ['ue', 3], 'üè' => ['ue', 4], |
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'ā' => ['a', 1], 'ē' => ['e', 1], 'ī' => ['i', 1], 'ō' => ['o', 1], 'ū' => ['u', 1], 'ǖ' => ['yu', 1], |
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'á' => ['a', 2], 'é' => ['e', 2], 'í' => ['i', 2], 'ó' => ['o', 2], 'ú' => ['u', 2], 'ǘ' => ['yu', 2], |
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'ǎ' => ['a', 3], 'ě' => ['e', 3], 'ǐ' => ['i', 3], 'ǒ' => ['o', 3], 'ǔ' => ['u', 3], 'ǚ' => ['yu', 3], |
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'à' => ['a', 4], 'è' => ['e', 4], 'ì' => ['i', 4], 'ò' => ['o', 4], 'ù' => ['u', 4], 'ǜ' => ['yu', 4], |
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]; |
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foreach ($replacements as $unicode => $replacement) { |
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if (\str_contains($pinyin, $unicode)) { |
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$umlaut = $replacement[0]; |
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if ($umlaut !== 'yu' && $style === self::TONE_STYLE_DEFAULT) { |
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continue; |
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} |
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// https://zh.wikipedia.org/wiki/%C3%9C |
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if ($this->yuTo !== 'yu') { |
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$umlaut = $this->yuTo; |
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} |
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$pinyin = \str_replace($unicode, $umlaut, $pinyin); |
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if ($this->toneStyle === self::TONE_STYLE_NUMBER) { |
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$pinyin .= $replacement[1]; |
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} |
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} |
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} |
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return $pinyin; |
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} |
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} |
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overtrue /
pinyin
