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<?php |
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/** |
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* League.Uri (https://uri.thephpleague.com) |
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* |
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* (c) Ignace Nyamagana Butera <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace League\Uri\UriTemplate; |
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use League\Uri\Exceptions\SyntaxError; |
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use function preg_match; |
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final class VarSpecifier |
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{ |
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/** |
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* Variables specification regular expression pattern. |
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* |
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* @link https://tools.ietf.org/html/rfc6570#section-2.3 |
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*/ |
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private const REGEXP_VARSPEC = '/^ |
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(?<name>(?:[A-z0-9_\.]|%[0-9a-fA-F]{2})+) |
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(?<modifier>\:(?<position>\d+)|\*)? |
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$/x'; |
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/** |
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* @var string |
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*/ |
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private $name; |
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/** |
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* @var string |
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*/ |
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private $modifier; |
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/** |
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* @var int |
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*/ |
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private $position; |
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private function __construct(string $name, string $modifier, int $position) |
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{ |
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$this->name = $name; |
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$this->modifier = $modifier; |
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$this->position = $position; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public static function __set_state(array $properties): self |
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{ |
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return new self($properties['name'], $properties['modifier'], $properties['position']); |
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} |
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public static function createFromString(string $specification): self |
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{ |
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if (1 !== preg_match(self::REGEXP_VARSPEC, $specification, $parsed)) { |
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throw new SyntaxError('The variable specification "'.$specification.'" is invalid.'); |
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} |
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$parsed += ['modifier' => '', 'position' => '']; |
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if ('' !== $parsed['position']) { |
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$parsed['position'] = (int) $parsed['position']; |
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$parsed['modifier'] = ':'; |
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} |
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if ('' === $parsed['position']) { |
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$parsed['position'] = 0; |
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} |
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if (10000 <= $parsed['position']) { |
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throw new SyntaxError('The variable specification "'.$specification.'" is invalid the position modifier must be lower than 10000.'); |
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} |
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return new self($parsed['name'], $parsed['modifier'], $parsed['position']); |
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} |
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public function toString(): string |
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{ |
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if (0 < $this->position) { |
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return $this->name.$this->modifier.$this->position; |
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} |
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return $this->name.$this->modifier; |
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} |
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public function name(): string |
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{ |
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return $this->name; |
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} |
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public function modifier(): string |
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{ |
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return $this->modifier; |
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} |
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public function position(): int |
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{ |
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return $this->position; |
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} |
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} |
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thephpleague /
uri
