VBA to modify another VBA

Hi,

I am trying to create a VBA that will:
-find and replace a specific string
-in all other VBAs of the same workbook
-any number of time(s), in any part(s) and any VBA(s) it appears

I have found this example, but it replaces the whole line, instead of the desired string only:

Code:

---

Sub replaceConstant()
    Dim project As VBIDE.VBProject
    For Each project In Application.VBE.VBProjects
 
        Dim codeMod As VBIDE.CodeModule
        Dim component As VBIDE.VBComponent
 
        For Each component In project.VBComponents
 
            If component.Name <> "replaceConstant" Then
 
                Set codeMod = component.CodeModule
 
                Dim startline As Long
                startline = 1
 
                codeMod.Find Target:="Old_Text", _
                    startline:=startline, startcolumn:=1, endline:=codeMod.CountOfLines, endcolumn:=1
 
                codeMod.ReplaceLine startline, "New_text"
 
 
            End If
        Next component
 
    Next project
End Sub

---

Could you please help me?

Code:

---

Sub replaceConstant()Dim project As VBIDE.VBProject
Dim codeMod As VBIDE.CodeModule
Dim component As VBIDE.VBComponent
Dim n As Long, s As String


For Each project In Application.VBE.VBProjects


    For Each component In project.VBComponents
   
        If component.Name <> "replaceConstant" Then
       
            Set codeMod = component.CodeModule
           
            With codeMod
                For n = 1 To .CountOfLines
                    s = .Lines(n, 1)
                    If Len(Trim$(s)) Then
                        If s Like "*" & Old_Text & "*" Then
                            s = Replace$(s, Old_Text, New_Text)
                            .DeleteLines n, 1
                            .InsertLines n, s
                        End If
                    End If
                Next
            End With
            'Dim startline As Long
            'startline = 1
           
            'codeMod.Find Target:="Old_Text", _
            'startline:=startline, startcolumn:=1, endline:=codeMod.CountOfLines, endcolumn:=1
           
            'codeMod.ReplaceLine startline, "New_text"
       
       
        End If
    Next component


Next project
End Sub

---

In personal.xlsb:

Code:

---

Sub M_snb()
  activesheet.cells.replace inputbox("search"), inputbox("replace by")
End Sub

---

PS. Your level of VBA expertise doesn't match the code you are working with.

Thanks both :)