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<?php |
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/** |
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* PHP: Nelson Martell Library file |
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* |
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* Copyright © 2015-2021 Nelson Martell (http://nelson6e65.github.io) |
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* |
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* Licensed under The MIT License (MIT) |
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* For full copyright and license information, please see the LICENSE |
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* Redistributions of files must retain the above copyright notice. |
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* |
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* @copyright 2015-2021 Nelson Martell |
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* @link http://nelson6e65.github.io/php_nml/ |
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* @since 0.1.1 |
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License (MIT) |
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* */ |
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declare(strict_types=1); |
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namespace NelsonMartell; |
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use InvalidArgumentException; |
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use NelsonMartell\Extensions\Text; |
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/** |
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* Representa un elemento mixto, compuesto por un entero y una cadena unidos |
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* (en ese orden). |
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* El método IntString::toString obtiene esa cadena compuesta. |
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* |
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* @author Nelson Martell <[email protected]> |
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* @since 0.1.1 |
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* |
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* @property-read int $intValue Gets the integer part. |
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* @property-read string $stringValue Gets the string part. |
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* */ |
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class IntString extends StrictObject implements IEquatable, IComparable |
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{ |
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/** |
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* Creates a new IntString instance. |
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* |
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* @param int|null $intValue Integer part. Default: `0` (zero). |
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* @param string|null $stringValue String part. Default: `''` (empty). |
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* |
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* @since 1.0.0-dev Allow `null` value for `$intValue`. |
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*/ |
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public function __construct(?int $intValue = 0, $stringValue = '') |
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{ |
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$this->intValue = $intValue; |
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if (!typeof($stringValue)->canBeString()) { |
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$args = [ |
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'position' => '2nd', |
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'expected' => typeof('string') . '", "' . typeof(null) . '" or "any object convertible to string', |
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'actual' => typeof($stringValue), |
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]; |
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$msg = msg('Invalid argument type.'); |
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$msg .= msg( |
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' {position} parameter must to be an instance of "{expected}"; "{actual}" given.', |
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$args |
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); |
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throw new InvalidArgumentException($msg); |
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} |
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$this->stringValue = (string) $stringValue; |
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} |
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/** |
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* Converts the object to an instance of `IntString` if compatible. |
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* |
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* @param mixed $obj Object to convert to `IntString`. |
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* |
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* @return IntString |
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* @throws InvalidArgumentException if object is not a string or format is invalid. |
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*/ |
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public static function parse($obj) |
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{ |
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if ($obj instanceof IntString) { |
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return $obj; |
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} |
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if (is_integer($obj)) { |
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return new IntString($obj); |
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} |
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try { |
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$intValue = (int) Text::ensureIsString($obj); |
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} catch (InvalidArgumentException $e) { |
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$args = [ |
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'position' => '1st', |
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'expected' => 'string" or "integer', |
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'actual' => typeof($obj), |
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]; |
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$msg = msg('Invalid argument type.'); |
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$msg .= msg( |
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' {position} parameter must to be an instance of "{expected}"; "{actual}" given.', |
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$args |
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); |
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throw new InvalidArgumentException($msg, 1, $e); |
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} |
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$stringValue = ltrim($obj, "${intValue}"); |
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// Validate that 0 (zero) is not interpreted as '' (empty string) |
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if ($stringValue === $obj) { |
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$msg = msg('Invalid argument value.'); |
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$msg .= msg(' "{0}" (string) must to start with an integer.', $obj); |
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throw new InvalidArgumentException($msg); |
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} |
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return new IntString($intValue, $stringValue); |
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} |
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/** |
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* Integer part of the instance. |
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* |
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* @var int |
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*/ |
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private $intValue; |
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/** |
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* String part of the instance. |
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* |
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* @var string |
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*/ |
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private $stringValue; |
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/** |
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* Getter for $intValue property. |
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* |
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* @return int|null |
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*/ |
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protected function getIntValue() |
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{ |
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return $this->intValue; |
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} |
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/** |
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* Getter for $stringValue property. |
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* |
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* @return string |
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*/ |
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protected function getStringValue(): string |
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{ |
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return $this->stringValue; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function toString(): string |
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{ |
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return $this->getIntValue() . $this->getStringValue(); |
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} |
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/** |
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* Indicates whether the specified object is equal to the current instance. |
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* |
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* @param mixed $other |
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* |
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* @return bool |
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*/ |
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public function equals($other): bool |
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{ |
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if ($other instanceof IntString) { |
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if ($this->getIntValue() === $other->getIntValue()) { |
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if ($this->getStringValue() === $other->getStringValue()) { |
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return true; |
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} |
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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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* Determina la posición relativa de esta instancia con respecto al |
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* objeto especificado. |
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* Nota: Cualquier objeto que no sea instancia de IntString se |
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* considerará menor. |
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* |
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* @param mixed $other Objeto con el que se va a comparar. |
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* |
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* @return int Cero (0), si esta instancia es igual a $other; mayor |
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* a cero (>0), si es mayor a $other; menor a cero (<0), si es menor. |
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* */ |
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public function compareTo($other) |
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{ |
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$r = $this->equals($other) ? 0 : 9999; |
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if ($r != 0) { |
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if ($other instanceof IntString) { |
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$r = $this->intValue - $other->intValue; |
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if ($r == 0) { |
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$r = strnatcmp($this->stringValue, $other->stringValue); |
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} |
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} else { |
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$r = 1; |
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} |
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} |
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return $r; |
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} |
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} |
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