Validating PAN (Indian Format)

**Rick Rothstein** · 10-17-2012, 05:16 AM

Originally Posted by in.vaibhav

Hi

There is one more requirement in this UDF, 4Th Character should be P for Individulas, C for Company & so on.

So how can we check that & also whether we can give output with error instead of say True or False.

EG. Length should be 10, First 5 character should be text, Next 6-9 character should be number, Last character should be text, 4th character should be either of P,H,F,A,T,B,L,J,G.

Thanks & Regards

This should account for the requirement you posted about...

Code:

Function IsPAN(S As String) As Boolean
  IsPAN = S Like "[A-Za-z][A-Za-z][A-Za-z][ABFGHJLPTabfghjlpt][A-Za-z]####[A-Za-z]"
End Function

**in.vaibhav** · 10-17-2012, 12:38 PM

Originally Posted by Rick Rothstein

This should account for the requirement you posted about...

Code:

Function IsPAN(S As String) As Boolean
  IsPAN = S Like "[A-Za-z][A-Za-z][A-Za-z][ABFGHJLPTabfghjlpt][A-Za-z]####[A-Za-z]"
End Function

Hi

I wanted to function like this..

Code:

Function ISPAN(inData As String)
Dim i As Integer
Dim Result As String

If Len(inData) <> 10 Then
ISPAN = "Total Character is " & Len(inData)
Exit Function
End If

If Mid(UCase(inData), 1, 1) Like "[A-Z]" Then
r1 = ""
Else
r1 = "Char1 is not Text,"
End If

If Mid(UCase(inData), 2, 1) Like "[A-Z]" Then
r2 = ""
Else
r2 = "Char2 is not Text,"
End If

If Mid(UCase(inData), 3, 1) Like "[A-Z]" Then
r3 = ""
Else
r3 = "Char3 is not Text,"
End If

If Mid(UCase(inData), 4, 1) Like "[P]" Then
r4 = ""
Else
r4 = "Char4 Should be P"
End If

If Mid(UCase(inData), 5, 1) Like "[A-Z]" Then
r5 = ""
Else
r5 = "Char5 is not Text,"
End If

If Mid(UCase(inData), 6, 1) Like "#" Then
r6 = ""
Else
r6 = "Char6 is not Number,"
End If

If Mid(UCase(inData), 7, 1) Like "#" Then
r7 = ""
Else
r7 = "Char7 is not Number,"
End If

If Mid(UCase(inData), 8, 1) Like "#" Then
r8 = ""
Else
r8 = "Char8 is not Number,"
End If

If Mid(UCase(inData), 9, 1) Like "#" Then
r9 = ""
Else
r9 = "Char9 is not Number,"
End If

If Mid(UCase(inData), 10, 1) Like "[A-Z]" Then
r10 = ""
Else
r10 = "Char10 is not Text,"
End If

Result = r1 & r2 & r3 & r4 & r5 & r6 & r7 & r8 & r9 & r10

If Right(Result, 1) = "," Then
    Result = Left(Result, Len(Result) - 1)
End If

If Result = "" Then
    ISPAN = "OK"
        Else
    ISPAN = Result
    End If
End Function

This works fine but it is very lengthy can we shortn same by looping, I am not expert in VBA

**Rick Rothstein** · 10-17-2012, 01:48 PM

I don't know this is a lot shorter than you were hoping for, but given you wanted complete error reporting, looping does not really help that much. I noticed you only tested the 4th character to be the letter "P" in your code and, since you said your code works fine, I restricted the check of the 4th character to only that letter. Note that I also added a check to see if the argument is too short or too long to be a proper entry. Here is the non-looping code I came up with...

Code:

Function IsPAN(S As String) As String
  If Len(S) < 10 Then
    IsPAN = "Too short!"
  ElseIf Len(S) > 10 Then
    IsPAN = "Too long!"
  Else
    If Mid(S, 1, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 1 is not text."
    If Mid(S, 2, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 2 is not text."
    If Mid(S, 3, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 3 is not text."
    If Mid(S, 4, 1) Like "[!Pp]" Then IsPAN = IsPAN & vbLf & "Character 4 is not the letter 'P'."
    If Mid(S, 5, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 5 is not text."
    If Mid(S, 6, 1) Like "[!0-9]" Then IsPAN = IsPAN & vbLf & "Character 6 is not a number."
    If Mid(S, 7, 1) Like "[!0-9]" Then IsPAN = IsPAN & vbLf & "Character 7 is not a number."
    If Mid(S, 8, 1) Like "[!0-9]" Then IsPAN = IsPAN & vbLf & "Character 8 is not a number."
    If Mid(S, 9, 1) Like "[!0-9]" Then IsPAN = IsPAN & vbLf & "Character 9 is not a number."
    If Mid(S, 10, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 10 is not text."
    If Len(IsPAN) Then
      IsPAN = Mid(IsPAN, 2)
    Else
      IsPAN = "OK"
    End If
  End If
End Function

In case you are interested, here is the same function using loops (among other things)...

Code:

Function IsPAN(S As String) As String
  Dim X As Long, PatternChar As String, Test As New Collection
  Const Pattern As String = "AAAPANNNNA"
  If Len(S) < 10 Then
    IsPAN = "Too short!"
  ElseIf Len(S) > 10 Then
    IsPAN = "Too long!"
  ElseIf Len(IsPAN) = 0 Then
    Test.Add "[A-Za-z]", "A"
    Test.Add "[Pp]", "P"
    Test.Add "#", "N"
    For X = 1 To Len(S)
      PatternChar = Test(Mid(Pattern, X, 1))
      If Not Mid(S, X, 1) Like PatternChar Then
        IsPAN = IsPAN & vbLf & "Character " & X & " is not " & Choose(InStr("APN", _
                Mid(Pattern, X, 1)), "text.", "the letter ""P"".", "a number.")
      End If
    Next
    If Len(IsPAN) Then
      IsPAN = Mid(IsPAN, 2)
    Else
      IsPAN = "OK"
    End If
  End If
End Function

**in.vaibhav** · 10-17-2012, 03:01 PM

Thanks. Rilli good piece of work..:cool :

Once again thanks a lot!!!

Originally Posted by Rick Rothstein

I don't know this is a lot shorter than you were hoping for, but given you wanted complete error reporting, looping does not really help that much. I noticed you only tested the 4th character to be the letter "P" in your code and, since you said your code works fine, I restricted the check of the 4th character to only that letter. Note that I also added a check to see if the argument is too short or too long to be a proper entry. Here is the non-looping code I came up with...

Code:

Function IsPAN(S As String) As String
  If Len(S) < 10 Then
    IsPAN = "Too short!"
  ElseIf Len(S) > 10 Then
    IsPAN = "Too long!"
  Else
    If Mid(S, 1, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 1 is not text."
    If Mid(S, 2, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 2 is not text."
    If Mid(S, 3, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 3 is not text."
    If Mid(S, 4, 1) Like "[!Pp]" Then IsPAN = IsPAN & vbLf & "Character 4 is not the letter 'P'."
    If Mid(S, 5, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 5 is not text."
    If Mid(S, 6, 1) Like "[!0-9]" Then IsPAN = IsPAN & vbLf & "Character 6 is not a number."
    If Mid(S, 7, 1) Like "[!0-9]" Then IsPAN = IsPAN & vbLf & "Character 7 is not a number."
    If Mid(S, 8, 1) Like "[!0-9]" Then IsPAN = IsPAN & vbLf & "Character 8 is not a number."
    If Mid(S, 9, 1) Like "[!0-9]" Then IsPAN = IsPAN & vbLf & "Character 9 is not a number."
    If Mid(S, 10, 1) Like "[!A-Za-z]" Then IsPAN = IsPAN & vbLf & "Character 10 is not text."
    If Len(IsPAN) Then
      IsPAN = Mid(IsPAN, 2)
    Else
      IsPAN = "OK"
    End If
  End If
End Function

In case you are interested, here is the same function using loops (among other things)...

Code:

Function IsPAN(S As String) As String
  Dim X As Long, PatternChar As String, Test As New Collection
  Const Pattern As String = "AAAPANNNNA"
  If Len(S) < 10 Then
    IsPAN = "Too short!"
  ElseIf Len(S) > 10 Then
    IsPAN = "Too long!"
  ElseIf Len(IsPAN) = 0 Then
    Test.Add "[A-Za-z]", "A"
    Test.Add "[Pp]", "P"
    Test.Add "#", "N"
    For X = 1 To Len(S)
      PatternChar = Test(Mid(Pattern, X, 1))
      If Not Mid(S, X, 1) Like PatternChar Then
        IsPAN = IsPAN & vbLf & "Character " & X & " is not " & Choose(InStr("APN", _
                Mid(Pattern, X, 1)), "text.", "the letter ""P"".", "a number.")
      End If
    Next
    If Len(IsPAN) Then
      IsPAN = Mid(IsPAN, 2)
    Else
      IsPAN = "OK"
    End If
  End If
End Function

**udaysdevadiga@gmail.com** · 12-27-2012, 08:52 PM

Hello Sir,

The above formula works fine.

Thanks for the same. Would request you to let us know how to save the same in excel so that every time no need of pasting the above formula again ana again.

Regards,
Uday

**Rick Rothstein** · 12-27-2012, 09:32 PM

Originally Posted by udaysdevadiga@gmail.com

The above formula works fine.

Thanks for the same. Would request you to let us know how to save the same in excel so that every time no need of pasting the above formula again ana again.

Do you really mean "formula" or are you referring to the VB code? There are 15 prior messages in this thread, some with formulas and some with VB code solutions... what is the number for the message containing the "formula" you are referring to (look for the number on the right side of the title bar for the message)?