VBA Split array - vba

Question

I have the following code:
Sub UpdateBlock()
'Define empty variables for each attribute
Dim ent As AcadEntity
Dim oBkRef As AcadBlockReference
Dim Insertpoints As Variant
Dim A As Double
Dim tag As String
Dim material As String
Dim actualLength As String
Dim cutOff As Double
Dim cutLengths As Double
Dim totalLengths As Double
Dim weight As Double
Dim purchaseLength As Double
Dim decimalLength As Double
Dim lengthWeight As Double
Dim totalLengthWeight As Double
Dim cutLengthWeight As Double
Dim cutWeight As Double
Dim order As Double
Dim feet As Double
Dim inches As Double
Dim fraction As Double
Dim fracVal As Variant
'First we go over every object in the modelspace
For Each ent In ThisDrawing.ModelSpace
'Check if the object is a block
If ent.ObjectName = "AcDbBlockReference" Then
Set oBkRef = ent
'If the object is a block then check if its the block we are looking for
If oBkRef.EffectiveName = "AUTOTAG-MATERIAL" Then
A = A + 1
'Get Current Attributes
attlist = oBkRef.GetAttributes
For i = LBound(attlist) To UBound(attlist)
Select Case attlist(i).TagString
Case "ACTUAL-LENGTH"
actualLength = attlist(i).TextString
Case "PURCHASE-LENGTH"
purchaseLength = attlist(i).TextString
Case "CUT-OFF"
cutOff = Frac2Num(attlist(i).TextString)
Case "DECIMAL-LENGTH"
feet = Split(actualLength)(0)
inches = Split(actualLength)(1)
fracVal = Split(actualLength)(2)
If Not IsNull(Split(actualLength)(2)) Then
fraction = Frac2Num(fracVal)
Else
fraction = 0
End If
decimalLength = Round((((feet * 12) + (inches + fraction)) / 12) - cutOff, 2)
attlist(i).TextString = decimalLength
Case "WEIGHT"
weight = attlist(i).TextString
Case "CUT-WEIGHT"
cutWeight = weight * decimalLength
attlist(i).TextString = cutWeight
Case "LENGTH-WEIGHT"
lengthWeight = weight * purchaseLength
attlist(i).TextString = lengthWeight
Case "TOTAL-LENGTHS"
totalLengths = attlist(i).TextString
Case "CUT-LENGTHS"
cutLength = attlist(i).TextString
Case "TOTAL-LENGTH-WEIGHT"
totalLengthWeight = lengthWeight * totalLengths
attlist(i).TextString = totalLengthWeight
Case "CUT-LENGTH-WEIGHT"
totalCutWeight = lengthWeight * cutLength
attlist(i).TextString = totalCutWeight
End Select
Next
End If
End If
Next ent
End Sub
Function Frac2Num(ByVal X As String) As Double
Dim P As Integer, N As Double, Num As Double, Den As Double
X = Trim$(X)
P = InStr(X, "/")
If P = 0 Then
N = Val(X)
Else
Den = Val(Mid$(X, P + 1))
If Den = 0 Then Error 11 ' Divide by zero
X = Trim$(Left$(X, P - 1))
P = InStr(X, " ")
If P = 0 Then
Num = Val(X)
Else
Num = Val(Mid$(X, P + 1))
N = Val(Left$(X, P - 1))
End If
End If
If Den <> 0 Then
N = N + Num / Den
End If
Frac2Num = N
End Function
The variable fraction / fracVal comes from a tag in AutoCAD that is a length, that will always be at least "0 0", but may be "0 0 0" it is a length in feet, inches, and fractional inches. So some possible values could be "8 5", "16 11 11/16", "0 5 3/8" etc.
What I need is a check for when the fraction is not there.
Any suggestions?

Answer 1

I would split the string on the space and see if the ubound of the resulting array is 2. So something like this
If Ubound(Split(thisString, " ")) = 2 then
'fractional part is present
End If

Answer 2

Another option is the Like Operator:
If thisString Like "#* #* #*/#*" Then
# matches any single digit (0–9) and * matches zero or more characters.
but since you split the string anyway, I would store the result of the split in a variable and check the number of items in it with UBound as shown in the other answer.