UBB的实现原理无外乎字符串的查找和替换。因此Microosft Script Engine 5.0版本的RegExp(正则表达式对象)是个不错的选择，但我想由于ISP的关系，我现在这个网站(信诺立)就还不支持Microsoft Script Engine 5.0。所以下面这个子程序可能更适合大家一些。
□Convert-实现ubb标记的查找和替换，当前实现了b/url/url1(在一个新窗口中打开链接)/#/hr等多个标记，大家可以自己增加其他标记。
□调用方法
if convert(text,"url")=false then
'url标记错误处理
end if
□convert函数代码
Function Convert(ByRef intext, UBB)
'变量定义
Dim intStart
Dim intStartPostion
Dim intEndPostion
Dim strStartUBB
Dim strEndUBB
Dim intStartUBBLen
Dim intEndUBBLen
Dim intStrLen
intStrLen = Len(intext)
Dim strContent
Dim strFinish
'彩色标记
Dim strColor
'#号ubb开始标记的结束]位置
Dim intJHEndPostion
intStart = 1
If UBB = "#" Then
strStartUBB = "[" & "#"
Else
strStartUBB = "[" & UBB & "]"
End If
If UBB = "hr" Then
intStartPostion = InStr(intStart, intext, strStartUBB, 1)
do until intStartPostion=0
intext = Replace(intext, strStartUBB, "<hr size=1>", 1, -1, 1)
intStart=intStartPostion+len(strStartUBB)
intStartPostion = InStr(intStart, intext,strStartUBB, 1)
Loop
convert=true
exit function
End If
strEndUBB = "[/" & UBB & "]"
intStartUBBLen = Len(strStartUBB)
intEndUBBLen = Len(strEndUBB)
intStartPostion = InStr(intStart, intext, strStartUBB, 1)
Do Until intStartPostion = 0
'找匹配UBB
intEndPostion = InStr(intStart, intext, strEndUBB, 1)
If intEndPostion = 0 Then
Convert = False
Exit Function
Else
'取中间字符串
If UBB = "#" Then
'#号特殊处理
intJHEndPostion = InStr(intStartPostion, intext, "]")
If intJHEndPostion = 0 Then
Convert = False
Exit Function
End If
strColor = Mid(intext, intStartPostion + intStartUBBLen, intJHEndPostion - intStartPostion - intStartUBBLen)
strContent = Mid(intext, intStartPostion + intStartUBBLen + Len(strColor) + 1, intEndPostion - intStartPostion - intStartUBBLen - Len(strColor) - 1)
Else
strContent = Mid(intext, intStartPostion + intStartUBBLen, (intEndPostion - intStartPostion - intStartUBBLen))
End If
'UBB处理
Select Case Ucase(UBB)
'黑体
Case "B"
strFinish = "<b>" & strContent & "</b>"
Case "URL"
strFinish = "<a href=" & strContent & ">" & strContent & "</a>"
'你可以增加其他标记
Case "URL1"
'在另一个窗口打开
strFinish = "<a href=" & strContent & " target=_blank>" & strContent & "</a>"
Case "IMG"
strFinish = "<img src=" & strContent & ">"
Case "#"
strFinish = "<font color=#" & strColor & ">" & strContent & "</font>"
End Select
'替换
If UBB = "#" Then
intext = Replace(intext, strStartUBB & strColor & "]" & strContent & strEndUBB, strFinish, 1, -1, 1)
Else
intext = Replace(intext, strStartUBB & strContent & strEndUBB, strFinish, 1, -1, 1)
End If
End If
intStart = intStartPostion + 1
intStartPostion = InStr(intStart, intext, strStartUBB, 1)
Loop
Convert = True
End Function
