$tem =& tem_push();
$tem['pieces'] = array();
$matches = preg_split('/(<!--)?(~[^~]*~)(?(1)-->)/', preg_replace('/<!--(~[^~]*~)-->/', '$1', $string), -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
$tem =& tem_push();
$tem['pieces'] = array();
$matches = preg_split('/(<!--)?(~[^~]*~)(?(1)-->)/', preg_replace('/<!--(~[^~]*~)-->/', '$1', $string), -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
if(array_key_exists(0, $value)) return $value;
# key/value pairs -- expand sub-template once.
else return array($value);
if(array_key_exists(0, $value)) return $value;
# key/value pairs -- expand sub-template once.
else return array($value);