UnicodeConstraint.php

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<?php
namespace MediaWiki\EditPage\Constraint;
 
use StatusValue;
 
class UnicodeConstraint implements IEditConstraint {
 
    public const VALID_UNICODE = 'ℳ𝒲♥𝓊𝓃𝒾𝒸ℴ𝒹ℯ';
 
    private $input;
 
    public function __construct( string $inputUnicode ) {
        $this->input = $inputUnicode;
    }
 
    public function checkConstraint(): string {
        if ( $this->input === self::VALID_UNICODE ) {
            return self::CONSTRAINT_PASSED;
        }
        return self::CONSTRAINT_FAILED;
    }
 
    public function getLegacyStatus(): StatusValue {
        $statusValue = StatusValue::newGood();
        if ( $this->input !== self::VALID_UNICODE ) {
            $statusValue->fatal( 'unicode-support-fail' );
            $statusValue->value = self::AS_UNICODE_NOT_SUPPORTED;
        }
        return $statusValue;
    }
 
}