private function parseAsk ( $text, WikiObjectModelCollection $parentObj ) {
if ( !defined( 'SMW_VERSION' ) ) return null;
if ( trim( strtolower( $parentObj->getFunctionKey() ) ) != 'ask' ) return null;
if ( count ( $parentObj->getObjects() ) == 0 ) {
return array( 'len' => 0, 'obj' => new WOMQuerystringModel() );
}
if ( defined( 'SMW_AGGREGATION_VERSION' ) ) {
$r = preg_match( '/^(\s*\?([^>=|}]+)(?:\>([^=|}]*))?(?:=([^|}]*))?)(\||\}|$)/', $text, $m );
if ( !$r ) return null;
return array(
'len' => strlen( $m[5] == '|' ? $m[0] : $m[1] ),
'obj' => new WOMQueryPrintoutModel( trim( $m[2] ), trim( $m[4] ), trim( $m[3] ) ) );
} else {
$r = preg_match( '/^(\s*\?([^=|}]+)(?:=([^|}]*))?)(\||\}|$)/', $text, $m );
if ( !$r ) return null;
return array(
'len' => strlen( $m[4] == '|' ? $m[0] : $m[1] ),
'obj' => new WOMQueryPrintoutModel( trim( $m[2] ), trim( $m[3] ) ) );
}
}
