Sorting

hi all,
I want to know how to do sorting by pos in the alphabet.
suppose i use the word BASIC, i want to display it as
ABCIS.

is there any way 2 do this?

Take a look at this

Create a small form with a textbox and a cmdbutton

‘ General
Dim MyArray(5)


Sub rSort(lower As Long, upper As Long)
Dim pivot As String
Dim first As Long, last As Long, middle As Long
' Locate pivot
first = lower ' lower pointer
last = upper ' upper pointer
middle = (first + last) / 2
pivot = MyArray(middle)
Do ' move pointers against each other
While MyArray(first) < pivot
first = first + 1
Wend
While MyArray(last) > pivot
last = last - 1
Wend
If first <= last Then
temp = MyArray(first)
MyArray(first) = MyArray(last)
MyArray(last) = temp
first = first + 1
last = last - 1
End If
Loop Until first > last
If lower < last Then
Call rSort(lower, last)
End If
If first < upper Then
Call rSort(first, upper)
End If
End Sub

Private Sub Command1_Click()
'fill MyArray
MyArray(0) = "B"
MyArray(1) = "A"
MyArray(2) = "S"
MyArray(3) = "I"
MyArray(4) = "C"

‘ call sort module
'parameters are start (0), stop (4), because MyArray = 5
Call rSort(0, 4)

‘ print result in txtbox
Text1.Text = MyArray(0) + MyArray(1) + MyArray(2) + MyArray(3) + MyArray(4)
End Sub

Cheers
Ray

Can this be used for words of variable length

Yes, because you are passing an array to the function and you are telling the function how big the array is.

Here is another (very similar) way to do it using a recursive function called QuickSort.

This will ask the user to input a string, then it will sort the string and display it in a message box. Please note that it uses the ascii values of the letters to sort, so all uppercase letters will come before lower case letters. You can modify this if you want to.

Put a command button (Command1) on the form and paste the following code into the form's code window:

Code:

---

Option Explicit

Private Sub Command1_Click()
    Dim myString As String
    Dim myArray() As String
    Dim Counter As Integer
   
    ' Get a word or phrase from the user
    myString = InputBox("Enter a word to sort")
   
    ' If they entered something, sort it and display it
    If Len(myString) > 0 Then
        ' First we have to deconstruct the string one character at a time
        ' and add each character to an array so we can pass the array
        ' to the function
        ReDim myArray(1 To Len(myString))
        For Counter = LBound(myArray) To UBound(myArray)
            myArray(Counter) = Mid$(myString, Counter, 1)
        Next ' Counter
       
        ' Now we sort the array
        QuickSort myArray, LBound(myArray), UBound(myArray)
       
        ' Clear our string so we can add the sorted array to it
        myString = ""
       
        ' Add the sorted array back into the string one character at at time
        For Counter = LBound(myArray) To UBound(myArray)
            myString = myString & myArray(Counter)
        Next ' Counter
       
        ' Display the sorted string
        MsgBox myString
    End If
End Sub

Private Sub QuickSort(SortList As Variant, ByVal First As Integer, _
    ByVal Last As Integer)
'
'Purpose:  This function sorts a list from lowest to highest (0 - 9 for
'          numeric arrays, A - z for string arrays). This is a recursive
'          function, meaning that it calls itself in order to solve
'          the problem.
'
'Arguments: SortList: An array of items to be sorted (Variant)
'          First:    The index of the first item in the array (Integer)
'          Last:    The index of the last item in the array (Integer)
'
'Note:      There is no "return value". However, the argument list is
'          returned with it's elements sorted. If you want to retain
'          your original list, pass this function a copy of the list.
'
    Dim Low As Integer, _
        High As Integer, _
        Temp As Variant, _
        TestElement As Variant
       
    Low = First
    High = Last
    TestElement = SortList((First + Last) / 2)
   
    Do
        Do While SortList(Low) < TestElement
            Low = Low + 1
        Loop
       
        Do While SortList(High) > TestElement
            High = High - 1
        Loop
       
        If (Low <= High) Then
            Temp = SortList(Low)
            SortList(Low) = SortList(High)
            SortList(High) = Temp
            Low = Low + 1
            High = High - 1
        End If
    Loop While (Low <= High)
   
    If (First < High) Then
        Call QuickSort(SortList, First, High)
    End If
   
    If (Low < Last) Then
        Call QuickSort(SortList, Low, Last)
    End If
End Sub

---

Hope that gets you started...