KnifeySpooney
By: a guest | Feb 9th, 2010 | Syntax:
VisualBasic | Size: 1.42 KB | Hits: 20 | Expires: Never
Function simpCalc(ByVal str As String) As Integer
Dim i As Integer
Dim idx As Integer
Dim subs As String
Dim nums(1) As String ' two numbers to calculate
Dim opType As Integer = -1 ' 0=add,1=sub,2=mult,3=div
While str.Length > 0
idx = IIf(opType > -1, 1, 0) ' returns 1 for index if on second num
subs = Microsoft.VisualBasic.Left(str, 1)
If Val(subs) > 0 Then
nums(idx) &= subs
ElseIf idx = 0 Then
If (subs = "+") Then
opType = 0
ElseIf (subs = "-") Then
opType = 1
ElseIf (subs = "*") Or (subs = "x") Then
opType = 2
ElseIf (subs = "/") Or (subs = "\") Then
opType = 3
End If
Else
End While
End If
str = str.Substring(1)
End While
Select Case (opType)
Case 0
i = Val(nums(0)) + Val(nums(1))
Case 1
i = Val(nums(0)) - Val(nums(1))
Case 2
i = Val(nums(0)) * Val(nums(1))
Case 3
i = Val(nums(0)) / Val(nums(1))
Case Else
i = 0
End Select
Me.txtDebug.Text = nums(0) & " " & nums(1)
Return i
End Function