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Posted on 2000-02-22
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hi, i am trying to convert a group of numbers to follow a certain equation.

first i begin with the group of numbers, for example:
15-26 2-3 5-12 4 9 13 4 4 0 2 3 35

then i (would like to learn how to)convert this group of numbers into this:
15-26 0*2-0*3 5-12 0*4 0*9 13 4 0*4 0 -1*2 3 35

basically, what i'm doing is cancelling out the 2nd cluster of numbers (2-3), the 4th cluster (4), the 5th cluster (9) and changing 10th cluster (2) into a negative number.  the problem is i have absolutely no idea how to do this programmatically.

so i'm asking for the specific code on how to do this.  if i recieve the full code that will work out perfectly and exactly the way i like it, i will give you 450 PTS!!!!
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Question by:llcoolmel
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5 Comments
 
LVL 12

Expert Comment

by:roverm
Comment Utility
Look for spaces using the instr function:

Private Sub Command1_Click()
Dim strDummy As String
Dim strResult As String
Dim i As Integer
Dim j As Integer
Dim last As Integer
'Text1 = a textbox containing your string

    Text1 = " " & Text1 'create start point
    strResult = ""
    last = 1
    Do
        i = InStr(last, Text1, " ")
        If i > 0 Then 'space found!
            strDummy = Mid(Text1, i + 1) 'get it starting from the space+1
            j = InStr(1, strDummy, " ") 'find end
            If j > 0 Then strDummy = Left(strDummy, j - 1)
            'now convert the result string
            'you have to write that code, since i don't know when to change into what!
            'the string to be converted is in strDummy so change that!
            'after strDummy is converted:
            strResult = strResult & strDummy & " "
            If j = 0 Then Exit Do
            last = j + last
        Else
            Exit Do
        End If
    Loop
    Label1.Caption = strResult

End Sub

Good luck!

D'Mzzl!
RoverM
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LVL 18

Expert Comment

by:deighton
Comment Utility
Text can be manipulated in VB but I don't understand the reason for what you want to do.  How do you decide which bits get cancelled out?  Are you trying to evaluate mathematical equations?  

We need some sort of rules behind what you want to do.

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LVL 12

Expert Comment

by:roverm
Comment Utility
deighton: that's why I described in my code:
            'now convert the result string
            'you have to write that code, since i don't know when to change into what!
            'the string to be converted is in strDummy so change that!
            'after strDummy is converted:

But the code works perfectly!

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LVL 18

Expert Comment

by:deighton
Comment Utility
Any code works perfectly if nobody knows what its meant to do.
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LVL 96

Accepted Solution

by:
Bob Learned earned 100 total points
Comment Utility
Private Enum ProcessModeConstants
   Cancel
   Negate
End Enum

Dim sNumbers As String

Private Sub Main()
   
   Debug.Print ProcessNumbers("15-26 2-3 5-12 4 9 13 4 4 0 2 3 35")
   
End Sub

Private Function ProcessNumbers(sList As String) As String

Dim sNumbers() As String

   sNumbers = Split(sList)
   
   Call ProcessCluster(sNumbers(1), Cancel)        '2nd cluster
   Call ProcessCluster(sNumbers(3), Cancel)       '4th cluster
   Call ProcessCluster(sNumbers(4), Cancel)       '5th cluster
   Call ProcessCluster(sNumbers(9), Negate)      '10th cluster
   
   ProcessNumbers = Join(sNumbers)

End Function

Private Sub ProcessCluster(sNumber As String, eMode As ProcessModeConstants)

Dim iDigit As Integer
Dim sDigits() As String
Dim sBuild As String

   sDigits = Split(sNumber, "-")
   
   For iDigit = 0 To UBound(sDigits)
      sBuild = sBuild & IIf(eMode = Cancel, "0*", "-1*") & sDigits(iDigit) & "-"
   Next iDigit
   
   sNumber = Left(sBuild, Len(sBuild) - 1)
   
End Sub

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