Find and replace subscripts and superscripts in MS Excel - html

Question

I would like to find all numbers and formulas which contain subscripts and superscripts in excel cells and replace it with html tags for subscripts and superscripts.
Eg. cell containing a2 + (b3 - c) would be replaced as:
a<sup>2</sup> + (b<sup>3</sup> - c)
Thanks a lot.

Answer 1

Try this one:
Sub test()
Dim ColNo, RowNo As Long
Dim NewStr As String
Set ws1 = Worksheets("q")
Set ws2 = Worksheets("q-a")
ws1.Activate
With ws1
RowNo = .UsedRange.SpecialCells(xlCellTypeLastCell).Row
ColNo = .UsedRange.SpecialCells(xlCellTypeLastCell).Column
For i = 1 To ColNo
For j = 1 To RowNo
l = 1
NewStr = .Cells(j, i).Value2
For k = 1 To Len(.Cells(j, i).Value2) - 1
If .Cells(j, i).Characters(k + 1, 1).Font.Superscript = True Then
NewStr = Mid(NewStr, 1, k - 1 + l) & "<sup>" & Mid(.Cells(j, i) _
.Value2, k + 1, 1) & "</sup>" & Mid(.Cells(j, i).Value2, _
k + 2, Len(.Cells(j, i).Value2) - (k + 1))
l = l + 11
ElseIf .Cells(j, i).Characters(k + 1, 1).Font.Subscript = True Then
NewStr = Mid(NewStr, 1, k - 1 + l) & "<sub>" & Mid(.Cells(j, i)._
Value2, k + 1, 1) & "</sub>" & Mid(.Cells(j, i).Value2, _
k + 2, Len(.Cells(j, i).Value2) - (k + 1))
l = l + 11
End If
Next
l = 1
For k = 1 To Len(NewStr) - 1
If InStr(k, NewStr, "</sup><sup>", vbBinaryCompare) = k Then
NewStr = Mid(NewStr, 1, k - 1) & Mid(NewStr, k + 11, Len(NewStr) - (k + 10))
ElseIf InStr(1, NewStr, "</sub><sub>", vbBinaryCompare) <> 0 Then
NewStr = Mid(NewStr, 1, k - 1) & Mid(NewStr, k + 11, Len(NewStr) - (k + 10))
End If
Next
ws2.Cells(j, i).Value2 = NewStr
NewStr = ""
Next
Next
End With
End Sub
According with the new information, I just make it simpler.
Hope it helps

Answer 2

As far as I try, that one works always but fail on the first character. So if the firs character is Subscript or Superscript, it will fail.
The code it is for the superscript case. For the subscript case, just change .Font.Subscript by .Font.Superscript and whatever code on html (<sup> on the superscript).
Sub test()
Dim ColNo, RowNo As Long
Dim Pos(500) As Integer
Dim Str(500) As String
Dim sType(500) as String
Dim NewStr As String
Set ws1 = Worksheets("Hoja1")
Set ws2 = Worksheets("Hoja2")
ws1.Activate
With ws1
RowNo = .UsedRange.SpecialCells(xlCellTypeLastCell).Row
ColNo = .UsedRange.SpecialCells(xlCellTypeLastCell).Column
l = 2
For i = 1 To ColNo
For j = 1 To RowNo
Pos(1) = 1
For k = 1 To Len(.Cells(j, i).Value2) - 1
If .Cells(j, i).Characters(k + 1, 1).Font.Superscript = True Then
Pos(l) = k + 1
sType(l) = "Sup"
l = l + 1
ElseIf .Cells(j, i).Characters(k + 1, 1).Font.Subscript = True Then
Pos(l) = k + 1
sType(l) = "Sub"
l = l + 1
End If
Next
For k = 1 To l - 1
If Pos(k + 1) > Pos(k) Then
If sType(l + 1) = "Sup" Then
Str(2 * k) = Mid(.Cells(j, i).Value2, Pos(k), Pos(k + 1) - Pos(k))
Str(2 * k - 1) = Mid(.Cells(j, i).Value2, Pos(k + 1), 1)
Str(2 * k - 1) = "<sup>" & Str(2 * k - 1) & "</sup>"
NewStr = NewStr & Str(2 * k) & Str(2 * k - 1)
ElseIf sType(l + 1) = "Sub" Then
Str(2 * k) = Mid(.Cells(j, i).Value2, Pos(k), Pos(k + 1) - Pos(k))
Str(2 * k - 1) = Mid(.Cells(j, i).Value2, Pos(k + 1), 1)
Str(2 * k - 1) = "<sub>" & Str(2 * k - 1) & "</sub>"
NewStr = NewStr & Str(2 * k) & Str(2 * k - 1)
End If
End If
Next
If NewStr <> "" Then
NewStr = NewStr + Mid(.Cells(j, i).Value2, _
Pos(l - 1), Len(.Cells(j, i).Value2) - Pos(l - 1))
Else
NewStr = .Cells(j, i).Value2
End If
ws2.Cells(j, i).Value2 = NewStr
NewStr = ""
For k = 1 To l - 1
Pos(k) = 0
sType(k) = ""
Str(2 * k) = ""
Str(2 * k - 1) = ""
Next
l = 2
Next
Next
End With
End Sub
Hope it helps