Чтобы проанализировать текстовую строку шестнадцатеричных цифр и отфильтровать ее в Excel VBA, вы можете использовать различные методы. Вот несколько примеров:

Метод 1: использование функции Mid

Sub ParseHexDigits()
    Dim inputString As String
    Dim filteredString As String
    Dim i As Integer

    inputString = "0x1A2B3C4D" ' Input hex digits string

    ' Filter out non-hex characters
    For i = 1 To Len(inputString)
        If Mid(inputString, i, 1) Like "[0-9A-Fa-f]" Then
            filteredString = filteredString & Mid(inputString, i, 1)
        End If
    Next i

    ' Output the filtered hex digits string
    MsgBox filteredString
End Sub

Метод 2. Использование регулярных выражений

Sub ParseHexDigits()
    Dim inputString As String
    Dim filteredString As String
    Dim regex As Object
    Dim matches As Object
    Dim match As Object

    inputString = "0x1A2B3C4D" ' Input hex digits string

    ' Create a regular expression pattern to match hex digits
    Set regex = CreateObject("VBScript.RegExp")
    regex.Pattern = "[0-9A-Fa-f]"

    ' Find all matches in the input string
    Set matches = regex.Execute(inputString)

    ' Concatenate the matched hex digits
    For Each match In matches
        filteredString = filteredString & match.Value
    Next match

    ' Output the filtered hex digits string
    MsgBox filteredString
End Sub

Метод 3. Использование пользовательской функции

Function FilterHexDigits(inputString As String) As String
    Dim filteredString As String
    Dim i As Integer

    ' Filter out non-hex characters
    For i = 1 To Len(inputString)
        If Mid(inputString, i, 1) Like "[0-9A-Fa-f]" Then
            filteredString = filteredString & Mid(inputString, i, 1)
        End If
    Next i

    FilterHexDigits = filteredString
End Function
Sub TestFilterHexDigits()
    Dim inputString As String
    Dim filteredString As String

    inputString = "0x1A2B3C4D" ' Input hex digits string

    ' Call the custom function to filter hex digits
    filteredString = FilterHexDigits(inputString)

    ' Output the filtered hex digits string
    MsgBox filteredString
End Sub