| (: Name: combiningnodeseqexcepthc4 :) | |
| (: Description: Simple combination of node sequences that evaluates to the empty sequence. Use "except" operator. :) | |
| (: Use count to avoid empty file. :) | |
| (: insert-start :) | |
| declare variable $input-context1 external; | |
| (: insert-end :) | |
| for $h in ( | |
| count(($input-context1//hours) except ($input-context1//hours))) | |
| order by number($h) | |
| return $h |