Scuff Regex

while( preg_match( '/^{{=== (<?scuff>[\p{L}\p{N}\p{P}\p{Sm}\s]) ===}}$/m', $pagedata, $matches) )
{
    $pagedata =
        str_replace(
            '{{=== '.
            $matches[ 'scuff' ].
            ' ===}}',

            '<div style="background-image:url(./site data/art/separators/Green Oil Scuff.png);">'.
            $matches[ 'scuff' ].
            '</div>',

            $pagedata
        );
}