chkinput.asp

一个用ASP编写的在线的整站系统,可用于网站初学者修改,编辑个人主页!

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Rem ==========论坛通用函数=========

function IsValidEmail(email)

dim names, name, i, c

'Check for valid syntax in an email address.

IsValidEmail = true
names = Split(email, "@")
if UBound(names) <> 1 then
   IsValidEmail = false
   exit function
end if
for each name in names
   if Len(name) <= 0 then
     IsValidEmail = false
     exit function
   end if
   for i = 1 to Len(name)
     c = Lcase(Mid(name, i, 1))
     if InStr("abcdefghijklmnopqrstuvwxyz_-.", c) <= 0 and not IsNumeric(c) then
       IsValidEmail = false
       exit function
     end if
   next
   if Left(name, 1) = "." or Right(name, 1) = "." then
      IsValidEmail = false
      exit function
   end if
next
if InStr(names(1), ".") <= 0 then
   IsValidEmail = false
   exit function
end if
i = Len(names(1)) - InStrRev(names(1), ".")
if i <> 2 and i <> 3 then
   IsValidEmail = false
   exit function
end if
if InStr(email, "..") > 0 then
   IsValidEmail = false
end if

end function

function strLength(str)
       ON ERROR RESUME NEXT
       dim WINNT_CHINESE
       WINNT_CHINESE    = (len("论坛")=2)
       if WINNT_CHINESE then
          dim l,t,c
          dim i
          l=len(str)
          t=l
          for i=1 to l
             c=asc(mid(str,i,1))
             if c<0 then c=c+65536
             if c>255 then
                t=t+1
             end if
          next
          strLength=t
       else 
          strLength=len(str)
       end if
       if err.number<>0 then err.clear
end function

function cutStr(str,strlen)
	dim l,t,c
	l=len(str)
	t=0
	for i=1 to l
	c=Abs(Asc(Mid(str,i,1)))
	if c>255 then
	t=t+2
	else
	t=t+1
	end if
	if t>=strlen then
	cutStr=left(str,i)&"..."
	exit for
	else
	cutStr=str
	end if
	next
	cutStr=replace(cutStr,chr(10),"")
end function
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