class RequiredSniff

class RequiredSniff implements Sniff {
    
    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array<int|string>
     */
    public function register() {
        return [
            T_INLINE_HTML,
        ];
    }
    
    //end register()
    
    /**
     * Processes this test, when one of its tokens is encountered.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the current token in the
     *                                               stack passed in $tokens.
     *
     * @return int
     */
    public function process(File $phpcsFile, $stackPtr) {
        // Only run this sniff once per info file.
        $fileExtension = strtolower(substr($phpcsFile->getFilename(), -4));
        if ($fileExtension !== 'info') {
            return $phpcsFile->numTokens + 1;
        }
        $contents = file_get_contents($phpcsFile->getFilename());
        $info = ClassFilesSniff::drupalParseInfoFormat($contents);
        if (isset($info['name']) === false) {
            $error = '"name" property is missing in the info file';
            $phpcsFile->addError($error, $stackPtr, 'Name');
        }
        if (isset($info['description']) === false) {
            $error = '"description" property is missing in the info file';
            $phpcsFile->addError($error, $stackPtr, 'Description');
        }
        if (isset($info['core']) === false) {
            $error = '"core" property is missing in the info file';
            $phpcsFile->addError($error, $stackPtr, 'Core');
        }
        else {
            if ($info['core'] === '7.x' && isset($info['php']) === true && $info['php'] <= '5.2') {
                $error = 'Drupal 7 core already requires PHP 5.2';
                $ptr = ClassFilesSniff::getPtr('php', $info['php'], $phpcsFile);
                $phpcsFile->addError($error, $ptr, 'D7PHPVersion');
            }
        }
        return $phpcsFile->numTokens + 1;
    }
    
    //end process()

}