by Anon (1 Submission)
Category: String Manipulation
Compatability: Visual Basic 3.0
Difficulty: Unknown Difficulty
Originally Published: Fri 17th August 2001
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Removes all occurrences (case-sensitive) of a substring within another string: RemoveSubstr("
<< hello >>
VBcoders
ByVal sSubStart As String, _
ByVal sSubEnd As String, _
ByVal iOptComp As Integer) As String
If (Len(s) = 0 Or Len(sSubStart) = 0 Or Len(sSubEnd) = 0) Then
GoTo end_rem_sub_str
End If
Dim instrS As Long, instrE As Long
Dim begin As Long, p As Long, lastP As Long
Dim lS As Long, lE As Long
lS = Len(sSubStart)
lE = Len(sSubEnd)
begin = 1
Do
instrS = InStr(begin, s, sSubStart, iOptComp)
instrE = InStr(instrS + lS, s, sSubEnd, iOptComp)
If ((instrS <= 0) Or (instrE <= 0)) Then Exit Do
p = instrS
Do
lastP = p
p = InStr(lastP + lS, s, sSubStart, iOptComp)
If (p = 0) Or (p >= instrE) Then Exit Do
Loop
s = Left$(s, lastP - 1) & Mid$(s, instrE + lE)
begin = lastP
Loop
end_rem_sub_str:
RemoveSubStr = s
End Function
Sub test_RemSubStr()
Dim sTmp As String
sTmp = ""
sTmp = sTmp & "<html><body><!-- content begin -->" & vbCr
sTmp = sTmp & "<SCRIPT language=""JavaScript1.2"">" & vbCr
sTmp = sTmp & Chr$(9) & "document.write('<font face=""Courier"">');" & vbCr
sTmp = sTmp & Chr$(9) & "document.writeln('<font face=""Courier"">');" & vbCr
sTmp = sTmp & "</SCRIPT>" & vbCr
sTmp = sTmp & "<< <b>Hello!</b> >>" & vbCr
sTmp = sTmp & "<script language=""JavaScript1.2"">" & vbCr
sTmp = sTmp & Chr$(9) & "document.write('</font>');" & vbCr
sTmp = sTmp & Chr$(9) & "document.writeln('</font>');" & vbCr
sTmp = sTmp & "</script>" & vbCr
sTmp = sTmp & "<!-- content end --></body></html>"
MsgBox sTmp, 0, "Remove SubString: Original string"
sTmp = RemoveSubStr(sTmp, "<script", "</script>", vbTextCompare)
MsgBox sTmp, 0, "Remove SubString: Scripts removed"
sTmp = RemoveSubStr(sTmp, "<", ">", vbCompareBinary)
MsgBox sTmp, 0, "Remove SubString: All tags removed"
End Sub
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