/**
* Pseudocast (expand).
* @return MacroTokens
*/
public function expandFilter(MacroTokens $tokens)
{
$res = new MacroTokens('array(');
$expand = NULL;
while ($tokens->nextToken()) {
if ($tokens->isCurrent('(expand)') && $tokens->depth === 0) {
$expand = TRUE;
$res->append('),');
} elseif ($expand && $tokens->isCurrent(',') && !$tokens->depth) {
$expand = FALSE;
$res->append(', array(');
} else {
$res->append($tokens->currentToken());
}
}
if ($expand !== NULL) {
$res->prepend('array_merge(')->append($expand ? ', array()' : ')');
}
return $res->append(')');
}
