private static Node getFirstNonEmptyChild ( Node n ) { for ( Node c = n . getFirstChild ( ) ; c != null ; c = c . getNext ( ) ) { if ( c . isBlock ( ) ) { Node result = getFirstNonEmptyChild ( c ) ; if ( result != null ) { return result ; } } else if ( ! c . isEmpty ( ) ) { return c ; } } return null ; }
Gets the first non - empty child of the given node .