<%
Function str2arr(str)
Dim arr, i
arr = Array()
Redim arr(len(str))
For i = 1 to Len(str)
arr(i) = Mid(str, i, 1)
Next
str2arr = arr
End Function
Sub QuickSort(vec,loBound,hiBound)
Dim pivot,loSwap,hiSwap,temp
'== This procedure is adapted from the algorithm given in:
'== Data Abstractions & Structures using C++ by
'== Mark Headington and David Riley, pg. 586
'== Quicksort is the fastest array sorting routine for
'== unordered arrays. Its big O is n log n
'== Two items to sort
if hiBound - loBound = 1 then
if vec(loBound) > vec(hiBound) then
temp=vec(loBound)
vec(loBound) = vec(hiBound)
vec(hiBound) = temp
End If
End If
'== Three or more items to sort
pivot = vec(int((loBound + hiBound) / 2))
vec(int((loBound + hiBound) / 2)) = vec(loBound)
vec(loBound) = pivot
loSwap = loBound + 1
hiSwap = hiBound
do
'== Find the right loSwap
while loSwap < hiSwap and vec(loSwap) <= pivot
loSwap = loSwap + 1
wend
'== Find the right hiSwap
while vec(hiSwap) > pivot
hiSwap = hiSwap - 1
wend
'== Swap values if loSwap is less then hiSwap
if loSwap < hiSwap then
temp = vec(loSwap)
vec(loSwap) = vec(hiSwap)
vec(hiSwap) = temp
End If
loop while loSwap < hiSwap
vec(loBound) = vec(hiSwap)
vec(hiSwap) = pivot
'== Recursively call function .. the beauty of Quicksort
'== 2 or more items in first section
if loBound < (hiSwap - 1) then Call QuickSort(vec,loBound,hiSwap-1)
'== 2 or more items in second section
if hiSwap + 1 < hibound then Call QuickSort(vec,hiSwap+1,hiBound)
End Sub 'QuickSort
Function SortString(str)
Dim arr
arr = str2arr(str) ' funktionen ovan
QuickSort arr, LBound(arr), UBound(arr) ' funktionen från 4guysfromrolla
SortString = Join(arr, "")
End Function
response.write SortString("testord")
%>