/**
* Check & Replace Zend_Json_Expr for tmp ids in the valueToEncode
*
* Check if the value is a Zend_Json_Expr, and if replace its value
* with a magic key and save the javascript expression in an array.
*
* NOTE this method is recursive.
*
* NOTE: This method is used internally by the encode method.
*
* @see encode
* @param mixed $valueToCheck a string - object property to be encoded
* @return void
*/
protected static function _recursiveJsonExprFinder(&$value, array &$javascriptExpressions, $currentKey = null)
{
if ($value instanceof Expr) {
// TODO: Optimize with ascii keys, if performance is bad
$magicKey = "____" . $currentKey . "_" . count($javascriptExpressions);
$javascriptExpressions[] = array("magicKey" => is_int($currentKey) ? $magicKey : Encoder::encodeUnicodeString($magicKey), "value" => $value->__toString());
$value = $magicKey;
} elseif (is_array($value)) {
foreach ($value as $k => $v) {
$value[$k] = self::_recursiveJsonExprFinder($value[$k], $javascriptExpressions, $k);
}
} elseif (is_object($value)) {
foreach ($value as $k => $v) {
$value->{$k} = self::_recursiveJsonExprFinder($value->{$k}, $javascriptExpressions, $k);
}
}
return $value;
}