asp代码实现文章内容关键字链接替换

文章内容中含有表中关键字的地方加上链接 ;文章中含有图片Alt提示的地方跳过,不然添加链接后图片显示出错;已经有链接的也跳过,不替换

function AddToDic(reg,key,Index,str,dic)
  pattern="<[^>]*"&key&"[^>]*>|<a[^>]*>[^<]*"&key&"[^<]*<\/a>"
  reg.Pattern=pattern
  set matches=reg.Execute(str)
  for each m in matches
    dic.Add "key"&Index,m.value   
    str=replace(str,m.value,"$key"&Index&"$")
    Index=Index+1
  next
  set matches=nothing
end function

function startReplace(str)
dim TempStr:TempStr=str
dim dic‘字典
set dic=server.CreateObject("scripting.dictionary")
dim Index:Index=0
dim rs,cn,cnstr
set cn=server.CreateObject("adodb.connection")
cnstr="provider=microsoft.jet.oledb.4.0;data source="&server.MapPath("t.mdb")
cn.Open cnstr
set rs=cn.Execute("select keyname,link from keylink order by YX desc")
dim reg
set reg=new RegExp
reg.Global=true
reg.IgnoreCase=true
dim pattern,matches,m,ky
do while not rs.eof
   ky=trim(rs(0)) AddToDic reg,ky,Index,TempStr,dic   
  TempStr=replace(TempStr,ky,"<a href=’"&rs(1)&"‘>"&ky&"</a>")
   AddToDic reg,ky,Index,TempStr,dic
   rs.movenext
loop
rs.close
set rs=nothing
cn.Close
set cn=nothing
set reg=nothing

for i=0 to Index–1
   TempStr=replace(TempStr,"$key"&i&"$",dic.Item("key"&i))
next
set dic=nothing
startReplace=TempStr
end function

dim str
str="网络技术网络;网络应用 网络基本知识 <img src=’/sss.jpg’ alt=’网络技术网络;网络应用’><a  href=""http://www.stobar.cn"">"&_
   "网络技术网络;网络应用 网络基本知识</a>"
str=startReplace(str)
response.Write str