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<?php |
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declare(strict_types=1); |
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namespace POData\Providers\Metadata\Type; |
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use POData\Common\NotImplementedException; |
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/** |
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* Class Char. |
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*/ |
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class Char implements IType |
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{ |
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const A = 65; |
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const Z = 90; |
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const SMALL_A = 97; |
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const SMALL_Z = 122; |
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const F = 70; |
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const SMALL_F = 102; |
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const ZERO = 48; |
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const NINE = 57; |
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const TAB = 9; |
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const NEWLINE = 10; |
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const CARRIAGE_RETURN = 13; |
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const SPACE = 32; |
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/** |
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* Checks a character is whitespace. |
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* |
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* @param char|string $char character to check |
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* |
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* @return bool |
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*/ |
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public static function isWhiteSpace($char) |
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{ |
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$asciiVal = ord($char); |
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return self::SPACE == $asciiVal |
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|| self::TAB == $asciiVal |
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|| self::CARRIAGE_RETURN == $asciiVal |
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|| self::NEWLINE == $asciiVal; |
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} |
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/** |
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* Checks a character is letter or digit. |
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* |
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* @param char|string $char character to check |
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* |
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* @return bool |
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*/ |
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public static function isLetterOrDigit($char) |
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{ |
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return self::isDigit($char) || self::isLetter($char); |
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} |
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/** |
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* Checks a character is digit. |
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* |
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* @param char|string $char character to check |
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* |
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* @return bool |
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*/ |
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public static function isDigit($char) |
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{ |
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$asciiVal = ord($char); |
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return self::ZERO <= $asciiVal && self::NINE >= $asciiVal; |
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} |
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/** |
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* Checks a character is letter. |
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* |
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* @param char|string $char character to check |
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* |
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* @return bool |
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*/ |
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public static function isLetter($char) |
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{ |
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$asciiVal = ord($char); |
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return ($asciiVal >= self::A && $asciiVal <= self::Z) |
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|| ($asciiVal >= self::SMALL_A && $asciiVal <= self::SMALL_Z); |
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} |
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/** |
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* Gets the type code |
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* Note: implementation of IType::getTypeCode. |
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* |
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* @return TypeCode |
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*/ |
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public function getTypeCode(): TypeCode |
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{ |
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return TypeCode::CHAR(); |
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} |
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/** |
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* Checks this type is compatible with another type |
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* Note: implementation of IType::isCompatibleWith. |
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* |
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* @param IType $type Type to check compatibility |
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* |
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* @return bool |
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*/ |
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public function isCompatibleWith(IType $type): bool |
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{ |
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switch ($type->getTypeCode()) { |
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case TypeCode::BYTE(): |
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case TypeCode::CHAR(): |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Validate a value in Astoria uri is in a format for this type |
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* Note: implementation of IType::validate. |
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* |
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* @param string $value The value to validate |
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* @param string &$outValue The stripped form of $value that can |
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* be used in PHP expressions |
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* |
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* @throws NotImplementedException |
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* @return bool |
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*/ |
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public function validate(string $value, ?string &$outValue): bool |
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{ |
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//No EDM Char primitive type |
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throw new NotImplementedException(); |
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} |
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/** |
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* Converts the given string value to char type. |
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* Note: This function will not perform any conversion. |
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* |
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* @param string $stringValue The value to convert |
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* |
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* @return string |
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*/ |
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public function convert(string $stringValue): string |
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{ |
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return $stringValue; |
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} |
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/** |
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* Convert the given value to a form that can be used in OData uri. |
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* Note: The calling function should not pass null value, as this |
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* function will not perform any check for nullability. |
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* |
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* @param mixed $value The value to convert |
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* |
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* @return string |
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*/ |
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public function convertToOData($value): string |
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{ |
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return $value; |
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} |
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/** |
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* Gets full name of the type implementing this interface in EDM namespace |
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* Note: implementation of IType::getFullTypeName. |
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* |
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* @return string |
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*/ |
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public function getName(): string |
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{ |
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return $this->getFullTypeName(); |
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} |
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/** |
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* Gets full name of this type in EDM namespace |
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* Note: implementation of IType::getFullTypeName. |
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* |
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* @return string |
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*/ |
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public function getFullTypeName(): string |
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{ |
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return 'System.Char'; |
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} |
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} |
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