Strip HTML Tags via Regular Expressions Demo

This demo illustrates how to strip HTML tags from a string using regular expressions. Simply enter some HTML text into the text box below:

Enter an HTML String:


Source Code
<%
Option Explicit

Function stripHTML(strtext)
 dim arysplit,i,j, strOutput
 arysplit=split(strtext,"<")
 
  if len(arysplit(0))>0 then j=1 else j=0

  for i=j to ubound(arysplit)
     if instr(arysplit(i),">") then
       arysplit(i)=mid(arysplit(i),instr(arysplit(i),">")+1)
     else
       arysplit(i)="<" & arysplit(i)
     end if
  next

  strOutput = join(arysplit, "")
  strOutput = mid(strOutput, 2-j)
  strOutput = replace(strOutput,">",">")
  strOutput = replace(strOutput,"<","<")

  stripHTML = strOutput
End Function


%>

<form method="post" id=form1 name=form1>
  <b>Enter an HTML String:</b><br>
  <textarea name="txtHTML" cols="50" rows="8" wrap="virtual"><%=Request("txtHTML")%></textarea>
  <p>
  <input type="submit" value="Strip HTML Tags!" id=submit1 name=submit1>
</form>

<% if Len(Request("txtHTML")) > 0 then %>
	<p><hr><p>
	<b><u>View of string <i>with no</i> HTML stripping:</u></b><br>
	<xmp>
	<%=Request("txtHTML")%>
	</xmp><p>
	<b><u>View of string <i>with</i> HTML stripping:</u></b><br>
	<pre>
	<%=StripHTML(Request("txtHTML"))%>
	</pre>
<% End If %>


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