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Tip of the Day
Language: VB4,VB5,VB6,VBS
Expertise: Intermediate
Jan 27, 2001

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


HTMLEncode - Encode a string so that it can be displayed in a browser

' Encode an string so that it can be displayed correctly
' inside the browser.
'
' Same effect as the Server.HTMLEncode method in ASP

Function HTMLEncode(ByVal Text As String) As String
    Dim i As Integer
    Dim acode As Integer
    Dim repl As String

    HTMLEncode = Text

    For i = Len(HTMLEncode) To 1 Step -1
        acode = Asc(Mid$(HTMLEncode, i, 1))
        Select Case acode
            Case 32
                repl = " "
            Case 34
                repl = """
            Case 38
                repl = "&"
            Case 60
                repl = "<"
            Case 62
                repl = ">"
            Case 32 To 127
                ' don't touch alphanumeric chars
            Case Else
                repl = "&#" & CStr(acode) & ";"
        End Select
        If Len(repl) Then
            HTMLEncode = Left$(HTMLEncode, i - 1) & repl & Mid$(HTMLEncode, _
                i + 1)
            repl = ""
        End If
    Next
End Function
Francesco Balena
 
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