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<?php |
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namespace GinoPane\PHPolyglot\Supplemental\Language; |
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use GinoPane\PHPolyglot\Exception\InvalidLanguageCodeException; |
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use GinoPane\PHPolyglot\Supplemental\GetConstantsTrait; |
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/** |
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* Class Language |
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* |
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* @author Sergey <Gino Pane> Karavay |
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*/ |
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class Language implements LanguageInterface |
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{ |
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/** |
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* Constant value for undefined language |
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*/ |
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const CODE_UNDEFINED = ''; |
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/** |
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* Stored part of speech |
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* |
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* @var string |
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*/ |
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private $language = self::CODE_UNDEFINED; |
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use GetConstantsTrait; |
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/** |
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* DictionaryEntryPos constructor |
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* |
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* @param string $language |
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* |
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* @throws InvalidLanguageCodeException |
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*/ |
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public function __construct(string $language = self::CODE_UNDEFINED) |
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{ |
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$language = strtolower($language); |
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if ($language !== self::CODE_UNDEFINED) { |
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$this->assertLanguageIsValid($language); |
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} |
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$this->language = $language; |
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} |
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/** |
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* Checks if code is valid |
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* |
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* @param string $code |
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* |
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* @return bool |
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*/ |
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public function codeIsValid(string $code): bool |
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{ |
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return $this->constantValueExists($code); |
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} |
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/** |
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* Returns current language code |
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* |
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* @return string |
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*/ |
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public function getCode(): string |
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{ |
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return $this->language; |
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} |
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/** |
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* Alias for Language::getCode |
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* |
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* @see Language::getCode() |
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* |
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* @return string |
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*/ |
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public function __toString(): string |
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{ |
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return $this->getCode(); |
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} |
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/** |
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* Checks that specified language code is valid |
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* |
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* @param string $language |
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* |
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* @throws InvalidLanguageCodeException |
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*/ |
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private function assertLanguageIsValid(string $language): void |
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{ |
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if (!$this->codeIsValid($language)) { |
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throw new InvalidLanguageCodeException( |
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sprintf("Language code \"%s\" is invalid", $language) |
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); |
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} |
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} |
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} |
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GinoPane /
PHPolyglot
