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    Fuhrer, Vierte Reich DocAElstein's Avatar
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    "What’s in a String"- VBA break down Loop through character contents of a string

    Rotines for this excelfox Thread
    http://www.excelfox.com/forum/showth...0943#post10943

    This is part 1 of the coding. The second part is in the next post. The second part must be copied directly under this part in the same code module

    Code:
    Option Explicit           '
    Option Compare Binary     '     https://docs.microsoft.com/de-de/dotnet/visual-basic/language-reference/statements/option-compare-statement
    
    Sub TestWtchaGot()
    ' In the practice we would likely have our string obtained from some method and would have it held in some string variable
    Dim strTest As String   '                             "Pointer" to a "Blue Print" (or Form, Questionnaire not yet filled in, a template etc.)"Pigeon Hole" in Memory, sufficient in construction to house a piece of Paper with code text giving the relevant information for the particular Variable Type. VBA is sent to it when it passes it. In a Routine it may be given a particular “Value”, or (“Values” for Objects). There instructions say then how to do that and handle(store) that(those). At Dim the created Paper is like a Blue Print that has some empty spaces not yet filled in. A String is a bit tricky. The Blue Print code line Paper in the Pigeon Hole will allow to note the string Length and an Initial start memory Location. This Location well have to change frequently as strings of different length are assigned. Instructions will tell how to do this. Theoretically a special value vbNullString is set to aid in quick checks.. But..http://www.mrexcel.com/forum/excel-questions/361246-vbnullstring-2.html#post44116
     Let strTest = Chr(1) & "Hi" & vbCrLf & vbTab & """u."""
     Call WtchaGot(strIn:=strTest)
    ' Call WtchaGot(Chr(1) & "Hi" & vbCrLf & vbTab & """u.""")
    End Sub
    
    Sub WtchaGot(ByVal strIn As String)
    Rem 1  ' Output "sheet hardcopies"
    '1a) Worksheets     'Make a Temporary Sheet, if not already there, in Current Active Workbook, for a simple list of all characters
        If Not Evaluate("=ISREF(" & "'" & "WotchaGotInString" & "'!Z78)") Then '   ( the '  are not important here, but iin general allow for a space in the worksheet name like  "Wotcha Got In String"
        Dim Wb As Workbook '                                   ' ' Dim:  ' Preparing a "Pointer" to an Initial "Blue Print" in Memory of the Object ( Pigeon Hole with a bit of paper or code lines on that can be filled in to refer to a specific Objec of this type ) . This also us to get easily at the Methods and Properties throught the applying of a period ( .Dot) ( intellisense )                     '
         Set Wb = ActiveWorkbook '  '                            Set now (to Active Workbook - one being "looked at"), so that we carefull allways referrence this so as not to go astray through Excel Guessing inplicitly not the one we want...         Set: Values are filled at the memory locations and the directions there are specified in the variable "Blue Print "Pointer". In this case a Filled in Blue Print is passed.      http://www.excelforum.com/excel-programming-vba-macros/1138804-help-understanding-class-instancing-cant-set-ws-new-worksheet-intellisense-offers-it-4.html#post4387191                                '
         Wb.Worksheets.Add After:=Wb.Worksheets.Item(Worksheets.Count) 'A sheeet is added and will be Active
        Dim ws As Worksheet '
         Set ws = ActiveSheet 'Rather than rely on always going to the active sheet, we referr to it Explicitly so that we carefull allways referrence this so as not to go astray through Excel Guessing implicitly not the one we want...    Set: Values are filled at the memory locations and the directions there are specified in the variable "Blue Print "Pointer". In this case a Filled in Blue Print is passed.      http://www.excelforum.com/excel-programming-vba-macros/1138804-help-understanding-class-instancing-cant-set-ws-new-worksheet-intellisense-offers-it-4.html#post4387191            ' Values are filled at the memory locations and the directions there are specified in the variable "Blue Print "Pointer". In this case a Filled in Blue Print is passed.      http://www.excelforum.com/excel-programming-vba-macros/1138804-help-understanding-class-instancing-cant-set-ws-new-worksheet-intellisense-offers-it-4.html#post4387191
         ws.Activate: ws.Cells(1, 1).Activate ' ws.Activate and activating a cell sometimes seemed to overcome a strange error
         Let ws.Name = "WotchaGotInString"
        Else ' The worksheet is already there , so I just need to set my variable to point to it
         Set ws = ThisWorkbook.Worksheets("WotchaGotInString")
        End If
    '1b) Array
    Dim myLenf As Long: Let myLenf = Len(strIn)  '            ' Long is very simple to handle, - final memory "size" type is known (123.456 and 000.001 have same "size" computer memory ) , and so a Address suggestion can be given for the next line when the variable is filled in.  '( Long is a Big whole Number limit (-2,147,483,648 to 2,147,483,647) If you need some sort of validation the value should only be within the range of a Byte/Integer otherwise there's no point using anything but Long.--upon/after 32-bit, Integers (Short) need converted internally anyways, so a Long is actually faster. )       https://www.mrexcel.com/forum/excel-questions/803662-byte-backward-loop-4.html
    Dim arrWotchaGot() As String: ReDim arrWotchaGot(1 To myLenf + 1, 1 To 2) ' +1 for header  Array for the output 2 column list.  The type is known and the size,  but I must use this ReDim  method simply because the dim statement  Dim( , )  is complie time thing and will only take actual numbers
     Let arrWotchaGot(1, 1) = Format(Now, "DD MMM YYYY") & vbLf & "Lenf is   " & myLenf: Let arrWotchaGot(1, 2) = Left(strIn, 20)
    Rem 2  String anylaysis
    'Dim myLenf As Long: Let myLenf = Len(strIn)
    Dim Cnt As Long
        For Cnt = 1 To myLenf ' ===Main Loop========================================================================
        ' Character analysis: Get at each character
        Dim Caracter As Variant ' String is probably OK.
        Let Caracter = Mid(strIn, Cnt, 1) ' '    the character in strIn at position from the left of length 1
        '2a) The character added to a single  WotchaGot  long character string to look at and possibly use in coding
        Dim WotchaGot As String ' This will be used to make a string that I can easilly see and also is in a form that I can copy and paste in a code line  required to build the full string of the complete character string
            '2a)(i) Most common characters and numbers to be displayed as "seen normally" ' -------2a)(i)--
            If Caracter Like "[A-Z]" Or Caracter Like "[0-9]" Or Caracter Like "[a-z]" Then ' Check for normal characters
            Let WotchaGot = WotchaGot & """" & Caracter & """" & " & " ' This will give the sort of output that I need to write in a code line, so for example if I have a123 , this code line will be used 4 times and give like a final string for me to copy of   "a" & "1" & "2" & "3" &      I would phsically need to write in code  like  strVar = "a" & "1" & "2" & "3"   -  i could of course also write  = "a123"   but the point of this routine is to help me pick out each individual element
            Else ' Some other things that I would like to "see" normally - not "normal simple character" - or by a VBA constant, like vbCr vbLf  vbTab
             Select Case Caracter ' 2a)(ii)_1
              Case " "
               Let WotchaGot = WotchaGot & """" & " " & """" & " & "
              Case "!"
               Let WotchaGot = WotchaGot & """" & "!" & """" & " & "
              Case "$"
               Let WotchaGot = WotchaGot & """" & "$" & """" & " & "
              Case "%"
               Let WotchaGot = WotchaGot & """" & "%" & """" & " & "
              Case "~"
               Let WotchaGot = WotchaGot & """" & "~" & """" & " & "
              Case "&"
               Let WotchaGot = WotchaGot & """" & "&" & """" & " & "
              Case "("
               Let WotchaGot = WotchaGot & """" & "(" & """" & " & "
              Case ")"
               Let WotchaGot = WotchaGot & """" & ")" & """" & " & "
              Case "/"
               Let WotchaGot = WotchaGot & """" & "/" & """" & " & "
              Case "\"
               Let WotchaGot = WotchaGot & """" & "\" & """" & " & "
              Case "="
               Let WotchaGot = WotchaGot & """" & "=" & """" & " & "
              Case "?"
               Let WotchaGot = WotchaGot & """" & "?" & """" & " & "
              Case "'"
               Let WotchaGot = WotchaGot & """" & "'" & """" & " & "
              Case "+"
               Let WotchaGot = WotchaGot & """" & "+" & """" & " & "
              Case "-"
               Let WotchaGot = WotchaGot & """" & "-" & """" & " & "
              Case "_"
               Let WotchaGot = WotchaGot & """" & "_" & """" & " & "
              Case "."
               Let WotchaGot = WotchaGot & """" & "." & """" & " & "
    '          Case " "
    '           Let WotchaGot = WotchaGot & """" & " " & """" & " & "
    '          Case " "
    '           Let WotchaGot = WotchaGot & """" & " " & """" & " & "
    '          Case " "
    '           Let WotchaGot = WotchaGot & """" & " " & """" & " & "
    '          Case " "
    '           Let WotchaGot = WotchaGot & """" & " " & """" & " & "
    '          Case " "
    '           Let WotchaGot = WotchaGot & """" & " " & """" & " & "
    '          Case " "
    '           Let WotchaGot = WotchaGot & """" & " " & """" & " & "
    Last edited by DocAElstein; 02-08-2019 at 02:03 AM.

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