Sort Functions Alphabetically, and Place them at the end of the Script

What I want to do is to place functions from a script at it ends in alphabetical order

EXAMPLE

Input au3

$var ="Sample au3"

Func _yo()
;some script 2
Endfunc


Func _akshay()
;some script 1
Endfunc


Output au3


$var ="Sample au3"


Func _akshay()
;some script 1
Endfunc

Func _yo()
;some script 2
Endfunc




can anyone help me out?