Viewing file:  VarSpecifier.php (2.18 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/**
* League.Uri (https://uri.thephpleague.com)
*
* (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace League\Uri\UriTemplate;
use League\Uri\Exceptions\SyntaxError;
use function preg_match;
/**
* @internal The class exposes the internal representation of a Var Specifier
* @link https://www.rfc-editor.org/rfc/rfc6570#section-2.3
*/
final class VarSpecifier
{
/**
* Variables specification regular expression pattern.
*
* @link https://tools.ietf.org/html/rfc6570#section-2.3
*/
private const REGEXP_VARSPEC = '/^(?<name>(?:[A-z0-9_\.]|%[0-9a-fA-F]{2})+)(?<modifier>\:(?<position>\d+)|\*)?$/';
private const MODIFIER_POSITION_MAX_POSITION = 10_000;
private function __construct(
public readonly string $name,
public readonly string $modifier,
public readonly int $position
) {
}
public static function new(string $specification): self
{
if (1 !== preg_match(self::REGEXP_VARSPEC, $specification, $parsed)) {
throw new SyntaxError('The variable specification "'.$specification.'" is invalid.');
}
$properties = ['name' => $parsed['name'], 'modifier' => $parsed['modifier'] ?? '', 'position' => $parsed['position'] ?? ''];
if ('' !== $properties['position']) {
$properties['position'] = (int) $properties['position'];
$properties['modifier'] = ':';
}
if ('' === $properties['position']) {
$properties['position'] = 0;
}
if (self::MODIFIER_POSITION_MAX_POSITION <= $properties['position']) {
throw new SyntaxError('The variable specification "'.$specification.'" is invalid the position modifier must be lower than 10000.');
}
return new self($properties['name'], $properties['modifier'], $properties['position']);
}
public function toString(): string
{
return $this->name.$this->modifier.match (true) {
0 < $this->position => $this->position,
default => '',
};
}
}
|