ASP常用函数:getIMG()

2015-08-12 16:01:56来源:作者:人点击

 目前还是有BUG的,最新的测试页面在: http://www.reallydo.com/getimg.asp

正则分析页面在: http://jorkin.reallydo.com/article.asp?id=380 
发现BUG请在后面留言,谢谢.
1.31修正
src=后面有空格不能正确匹配.已修正.
src=''为空时出错.已修正.
发现BUG: 图片路径有多个空格时只能保留一个.未修正.
2.18修正
图片路径有多个空格时只能保留一个的BUG.已修正.
<%
'功能:获取全部图片地址,保存到一个数组.
'来源:http://jorkin.reallydo.com/article.asp?id=448
'需要ReplaceAll函数:http://jorkin.reallydo.com/article.asp?id=406

Function getIMG(sString)
  Dim sReallyDo, regEx, iReallyDo
  Dim oMatches, cMatch
  '//定义一个空数组
  iReallyDo = -1
  ReDim aReallyDo(iReallyDo)
  If IsNull(sString) Then
  getIMG = aReallyDo
  Exit Function
  End If
  '//格式化HTML代码
  '//将每个 <img 换行 方便正则替换
  sReallyDo = sString
  On Error Resume Next
  sReallyDo = Replace(sReallyDo, vbCr, " ")
  sReallyDo = Replace(sReallyDo, vbLf, " ")
  sReallyDo = Replace(sReallyDo, vbTab, " ")
  sReallyDo = Replace(sReallyDo, "<img ", vbCrLf & "<img ", 1, -1, 1)
  sReallyDo = Replace(sReallyDo, "/>", " />", 1, -1, 1)
  sReallyDo = ReplaceAll(sReallyDo, "= ", "=", True)
  sReallyDo = ReplaceAll(sReallyDo, "> ", ">", True)
  sReallyDo = Replace(sReallyDo, "><", ">" & vbCrLf & "<")
  sReallyDo = Trim(sReallyDo)
  Set regEx = New RegExp
  regEx.IgnoreCase = True
  regEx.Global = True
  '//去除onclick,onload等脚本
  regEx.Pattern = "s[on].+?=([""|'])(.*?)1"
  sReallyDo = regEx.Replace(sReallyDo, "")
  '//将SRC不带引号的图片地址加上引号
  regEx.Pattern = "<img.*?ssrc=([^""'s][^""'s>]*).*?>"
  sReallyDo = regEx.Replace(sReallyDo, "<img src=""$1"" />")
  '//正则匹配图片SRC地址
http://bizhi.cncms.com/
  regEx.Pattern = "<img.*?ssrc=([""'])([^""']+?)1.*?>"
  Set oMatches = regEx.Execute(sReallyDo)
  '//将图片地址存入数组
  For Each cMatch in oMatches
  iReallyDo = iReallyDo + 1
  ReDim PReserve aReallyDo(iReallyDo)
  aReallyDo(iReallyDo) = regEx.Replace(cMatch.Value, "$2")
  Next
  getIMG = aReallyDo
End Function
%>

<%
'用法:很多人都问我怎么用,其实数组怎么用的这个就怎么用.
sContent = "HTML代码字段" '//sContent代表Html代码,原来写个ors怎么就不懂是记录集呢。。。
Dim aImages : aImages = GetImg(sContent) '//定义一个数组,并且用来存放所有分析到的图片地址
'列出所有图片的地址:
For i = 0 To UBound(aImages)
  Response.Write("<b>第" & i + 1 & "张图片地址:</b> " & aImages(i) & "<br />")
Next
'列出第一张图片地址:
If UBound(aImages)> -1 Then Response.Write("<p><b>第一张图片地址:</b> " & aImages(0) & "</p>")
'列出最后一张图片地址:
If UBound(aImages)> -1 Then Response.Write("<p><b>最后一张图片地址:</b> " & aImages(UBound(aImages)) & "</p>")
%>

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