NamespaceUri.php

<?php

declare (strict_types=1);
namespace TheSeer\Tokenizer;

class NamespaceUri {
    
    /** @var string */
    private $value;
    public function __construct(string $value) {
        $this->ensureValidUri($value);
        $this->value = $value;
    }
    public function asString() : string {
        return $this->value;
    }
    private function ensureValidUri($value) : void {
        if (\strpos($value, ':') === false) {
            throw new NamespaceUriException(\sprintf("Namespace URI '%s' must contain at least one colon", $value));
        }
    }

}