ASP实用函数库

<%
'判断文件名是否合法
Function isFilename(aFilename)
 Dim sErrorStr,iNameLength,i
 isFilename=TRUE
 sErrorStr=Array("/","",":","*","?","""","<","","|")
 iNameLength=Len(aFilename)
 If iNameLength<1 Or iNameLength=null Then
  isFilename=FALSE
 Else
  For i=0 To 8
   If instr(aFilename,sErrorStr(i)) Then
    isFilename=FALSE   
   End If
  Next
 End If
End Function

'去掉字符串头尾的连续的回车和空格
function trimVBcrlf(str)
 trimVBcrlf=rtrimVBcrlf(ltrimVBcrlf(str))
end function

'去掉字符串开头的连续的回车和空格
function ltrimVBcrlf(str)
 dim pos,isBlankChar
 pos=1
 isBlankChar=true
 while isBlankChar
  if mid(str,pos,1)=" " then
   pos=pos+1
  elseif mid(str,pos,2)=VBcrlf then
   pos=pos+2
  else
   isBlankChar=false
  end if
 wend
 ltrimVBcrlf=right(str,len(str)-pos+1)
end function

'去掉字符串末尾的连续的回车和空格
function rtrimVBcrlf(str)
 dim pos,isBlankChar
 pos=len(str)
 isBlankChar=true
 while isBlankChar and pos=2
  if mid(str,pos,1)=" " then
   pos=pos-1
  elseif mid(str,pos-1,2)=VBcrlf then
   pos=pos-2
  else
   isBlankChar=false
  end if
 wend
 rtrimVBcrlf=rtrim(left(str,pos))
end function

'判断Email是否有效,返回1表示正确
Function isEmail(aEmail)
 Dim iLocat,v,iLength,i,checkletter
 If instr(aEmail,"@") = 0 Or instr(aEmail,".") = 0 Then
  isEmail=0
  EXIT FUNCTION
 End If
 iLocat=instr(aEmail,"@")
 If instr(iLocat,aEmail,".")=0 Or instr(iLocat+1,aEmail,"@")0 Then
  isEmail=0
  EXIT FUNCTION
 End If
 If left(aEmail,1)="." Or right(aEmail,1)="." Or left(aEmail,1)="@" Or right(aEmail,1)="@" Then
  isEmail=0
  EXIT FUNCTION
 End If
 v="1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-.@"
 iLength=len(aEmail)
 For i=1 To iLength
  checkletter=mid(aEmail,i,1)
  If instr(v,checkletter)=0 Then
   isEmail=0
   EXIT FUNCTION
  End If
 Next
 isEmail=1
End Function

'测试用:显示服务器信息
Sub showServer
 Dim name
 Response.write "<Table border=1 bordercolor=lightblue CELLSPACING=0"
 for each name in request.servervariables
  Response.write "<tr"
  Response.write "<td"&name&"</td"
  Response.write "<td"&request.servervariables(name)&"<br</td"
  Response.write "</tr"
 next
 Response.write "</table"
End Sub

'测试用:显示Rs结果集以及字段名称
Sub showRs(rs)
 Dim strTable,whatever
 Response.write "<center<table<tr"
 for each whatever in rs.fields
  response.write "<td<b" & whatever.name & "</B</TD"
 next
 strTable = "</tr<tr<td"&rs.GetString(,,"</td<td","</tr<tr<td"," ") &"</td</tr</table</center"
 Response.Write(strTable)
End Sub

'用HTML格式显示文本
function HTMLEncode(fString)
if not isnull(fString) then
    fString = replace(fString, "", "&gt;")
    fString = replace(fString, "<", "&lt;")

    fString = Replace(fString, CHR(32), "&nbsp;")
    fString = Replace(fString, CHR(34), "&quot;")
    fString = Replace(fString, CHR(39