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<?php |
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declare(strict_types=1); |
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namespace PhpSpellcheck\Spellchecker; |
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use PhpSpellcheck\MisspellingInterface; |
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use Webmozart\Assert\Assert; |
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class MultiSpellchecker implements SpellcheckerInterface |
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{ |
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/** |
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* @var iterable<SpellcheckerInterface> |
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*/ |
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private $spellCheckers; |
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/** |
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* @var bool |
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*/ |
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private $mergeMisspellingsSuggestions; |
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/** |
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* @param SpellcheckerInterface[] $spellCheckers |
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*/ |
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public function __construct(iterable $spellCheckers, bool $mergeMisspellingsSuggestions = true) |
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{ |
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Assert::allIsInstanceOf($spellCheckers, SpellcheckerInterface::class); |
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$this->spellCheckers = $spellCheckers; |
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$this->mergeMisspellingsSuggestions = $mergeMisspellingsSuggestions; |
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} |
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public function check(string $text, array $languages, array $context): iterable |
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{ |
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if (!$this->mergeMisspellingsSuggestions) { |
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yield from $this->checkForAllSpellcheckers($text, $languages, $context); |
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return; |
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} |
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/** @var MisspellingInterface[] $misspellings */ |
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$misspellings = []; |
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/** @var SpellcheckerInterface $spellChecker */ |
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foreach ($this->spellCheckers as $spellChecker) { |
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$supportedLanguages = \is_array($spellChecker->getSupportedLanguages()) ? |
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$spellChecker->getSupportedLanguages() : |
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iterator_to_array($spellChecker->getSupportedLanguages()); |
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$spellcheckerSupportedLanguages = array_intersect($supportedLanguages, $languages); |
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if ($spellcheckerSupportedLanguages === []) { |
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continue; |
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} |
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foreach ($spellChecker->check($text, $spellcheckerSupportedLanguages, $context) as $misspelling) { |
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if (!empty($context)) { |
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$misspelling = $misspelling->mergeContext($context); |
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} |
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if (!$misspelling->canDeterminateUniqueIdentity()) { |
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$misspellings[] = $misspelling; |
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continue; |
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} |
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if (isset($misspellings[$misspelling->getUniqueIdentity()])) { |
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$misspellings[$misspelling->getUniqueIdentity()]->mergeSuggestions($misspelling->getSuggestions()); |
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continue; |
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} |
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$misspellings[$misspelling->getUniqueIdentity()] = $misspelling; |
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} |
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} |
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yield from array_values($misspellings); |
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} |
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public function getSupportedLanguages(): iterable |
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{ |
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$supportedLanguages = []; |
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foreach ($this->spellCheckers as $spellChecker) { |
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foreach ($spellChecker->getSupportedLanguages() as $language) { |
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$supportedLanguages[] = $language; |
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} |
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} |
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return array_values(array_unique($supportedLanguages)); |
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} |
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/** |
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* @param array<mixed> $context |
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* @param array<string> $languages |
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* |
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* @return iterable<MisspellingInterface> |
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*/ |
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private function checkForAllSpellcheckers( |
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string $text, |
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array $languages, |
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array $context |
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): iterable { |
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foreach ($this->spellCheckers as $spellChecker) { |
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$supportedLanguages = \is_array($spellChecker->getSupportedLanguages()) ? |
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$spellChecker->getSupportedLanguages() : |
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iterator_to_array($spellChecker->getSupportedLanguages()); |
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$spellcheckerSupportedLanguages = array_intersect($supportedLanguages, $languages); |
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if ($spellcheckerSupportedLanguages === []) { |
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continue; |
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} |
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foreach ($spellChecker->check($text, $spellcheckerSupportedLanguages, $context) as $misspelling) { |
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if (!empty($context)) { |
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$misspelling = $misspelling->mergeContext($context); |
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} |
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yield $misspelling; |
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} |
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} |
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} |
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} |
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tigitz /
php-spellchecker
