Simple BBCode Script

<%

'----------------------------------------
' Common Regular Expression Function
'----------------------------------------
Function ReplaceRegExp(strString, strPattern, strReplace)

	Dim RE: Set RE = New RegExp

	With RE
		.Pattern = strPattern
		.Global = True
		ReplaceRegExp = .Replace(strString, strReplace)
	End With
	
End Function

'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

'----------------------------------------
' Turn BBcode into HTML
'----------------------------------------
Function BBCodeToHTML(strString)
	strString = ReplaceRegExp(strString, "(http|ftp|https)(:\/\/[\w\-_]+)((\.[\w\-_]+)+)([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?", "<a href=""$1$2$3$5"" target=""_blank"">$1$2$3$5</a>")
	strString = ReplaceRegExp(strString, "\[color=([^\]]*)\]([^\[]*)\[/color\]", "<span style=""color: $1;"">$2</span>")
	strString = ReplaceRegExp(strString, "\[size=([^\]]*)\]([^\[]*)\[/size\]", "<font size=""$1"">$2</font>")
	strString = ReplaceRegExp(strString, "\[font=([^\]]*)\]([^\[]*)\[/font\]", "<span style=""font-family: $1, Sans-Serif, Serif;"">$2</span>")
	strString = ReplaceRegExp(strString, "\[quote=([^\]]*)\]([^\[]*)\[/quote\]", "<div class=""quote""><span style=""font-weight: bold; font-size: 8pt;"">$1 said:</span><pre class=""quote1"">$2</pre></div>")
	strString = Replace(strString, "[b]", "<span style=""font-weight: bold;"">")
	strString = Replace(strString, "[B]", "<span style=""font-weight: bold;"">")
	strString = Replace(strString, "[u]", "<span style=""text-decoration: underline;"">")
	strString = Replace(strString, "[U]", "<span style=""text-decoration: underline;"">")
	strString = Replace(strString, "[i]", "<span style="" font-style: italic;"">")
	strString = Replace(strString, "[I]", "<span style="" font-style: italic;"">")
	strString = Replace(strString, "[/b]", "</span>")
	strString = Replace(strString, "[/B]", "</span>")
	strString = Replace(strString, "[/u]", "</span>")
	strString = Replace(strString, "[/U]", "</span>")
	strString = Replace(strString, "[/i]", "</span>")
	strString = Replace(strString, "[/I]", "</span>")
	strString = Replace(strString, "[/i]", "<ul><li>")
	strString = Replace(strString, "[LI]", "<ul><li>")
	strString = Replace(strString, "[Li]", "<ul><li>")
	strString = Replace(strString, "[lI]", "<ul><li>")
	strString = Replace(strString, "[/li]", "</li></ul>")
	strString = Replace(strString, "[/LI]", "</li></ul>")
	strString = Replace(strString, "[/Li]", "</li></ul>")
	strString = Replace(strString, "[/lI]", "</li></ul>")
	BBCodeToHTML = strString
End Function

'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

%>

<%

strTest = "blah blah http://www.thisisaurl.com blah blah [color=orange]Orange Text[/color] blah blah [size=7]Size 7 Text[/size] blah blah [font=Arial]Arial Font[/font] blah blah [quote=BBD]This is what BBD said.[/quote] blah blah [b]Bold Text[/b] blah blah [u]Underlined Text[/u] blah blah [i]Italicized Text[/i] blah blah [li]Listed Text[/li] blah blah"

strOutput = BBCodeToHTML(strTest)

Response.Write(strOutput)

%>