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<?php |
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declare(strict_types=1); |
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namespace Stadly\PasswordPolice\WordList; |
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use ErrorException; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use Stadly\PasswordPolice\CaseConverter\CaseConverterInterface; |
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final class Pspell implements WordListInterface |
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{ |
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/** |
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* @var int Pspell dictionary. |
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*/ |
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private $pspell; |
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/** |
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* @var CaseConverterInterface[] Case converters. |
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*/ |
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private $caseConverters; |
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/** |
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* Pspell dictionaries are case-sensitive. |
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* Specify case converters if tests should also be performed for the word converted to other cases. |
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* |
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* @param int $pspell Pspell dictionary link, as generated by `pspell_new` and friends. |
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* @param CaseConverterInterface... $caseConverters Case converters. |
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*/ |
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public function __construct(int $pspell, CaseConverterInterface... $caseConverters) |
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{ |
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$this->pspell = $pspell; |
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$this->caseConverters = $caseConverters; |
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} |
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/** |
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* Pspell dictionaries are case-sensitive. |
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* Specify case converters if tests should also be performed for the word converted to other cases. |
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* |
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* @param string $locale Locale of the pspell dictionary to load. For example `en-US` or `de`. |
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* @param CaseConverterInterface... $caseConverters Case converters. |
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* @throws RuntimeException If the pspell dictionary could not be loaded. |
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* @return self Pspell word list. |
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*/ |
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public static function fromLocale(string $locale, CaseConverterInterface... $caseConverters): self |
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{ |
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if (preg_match('{^[a-z]{2}(?:[-_][A-Z]{2})?$}', $locale) !== 1) { |
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throw new InvalidArgumentException(sprintf('%s is not a valid locale.', $locale)); |
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} |
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set_error_handler([self::class, 'errorHandler']); |
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try { |
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$pspell = pspell_new($locale); |
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} catch (ErrorException $exception) { |
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throw new RuntimeException('An error occurred while loading the word list.', /*code*/0, $exception); |
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} finally { |
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restore_error_handler(); |
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} |
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assert($pspell !== false); |
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return new self($pspell, ...$caseConverters); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function contains(string $word): bool |
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{ |
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foreach ($this->getWordsToCheck($word) as $wordVariant) { |
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set_error_handler([self::class, 'errorHandler']); |
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try { |
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$check = pspell_check($this->pspell, $wordVariant); |
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} catch (ErrorException $exception) { |
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throw new RuntimeException('An error occurred while using the word list.', /*code*/0, $exception); |
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} finally { |
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restore_error_handler(); |
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} |
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if ($check) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* @return string[] Variants of the word to check. |
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*/ |
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private function getWordsToCheck(string $word): array |
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{ |
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$words = [$word]; |
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foreach ($this->caseConverters as $caseConverter) { |
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$words[] = $caseConverter->convert($word); |
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} |
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return array_unique($words); |
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} |
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/** |
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* @throws ErrorException Error converted to an exception. |
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*/ |
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private static function errorHandler(int $severity, string $message, string $filename, int $line): void |
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{ |
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throw new ErrorException($message, /*code*/0, $severity, $filename, $line); |
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} |
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} |
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Stadly /
PasswordPolice
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