Sorting "case"

I know this plugin is designed to sort "lines".
But sometimes you have switch/case and for a better overview, the cases are better organized if sorted.
I don't know if this could/should be integrated, but it would be a nice enhancement.
The difference is, cases are followed by code:
case 'xxx':
code...
[break]
case 'yyy':
code...
[break]

I assume that is to complicated, but it would ease some day work :)