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Problem with extracting jpg from url

 
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Problem with extracting jpg from url
Damage
post 6 Oct, 2008 - 03:50 AM
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i'm trying to retrieve all jpgs from a given url but my function isn't returning anything. I have no clue when it comes to regular expressions this is something i got from a site I googled. Any advice would be appreciated

CODE
  
Try
            
            Dim picList As New ArrayList()

            
            
            Dim regString As String = "goodjpg=(/sr\.pos/.test(s)==false && /\.jpg$/i.test(s))"
            Dim reg As New Regex(pattern, RegexOptions.IgnoreCase Or RegexOptions.ExplicitCapture)

            
            Dim matches As MatchCollection = reg.Matches(str)

            
            For Each match As Match In matches
            
            
                    picList.Add(match.tostring)
                Next
                        
            Return (picList)
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Damage
post 6 Oct, 2008 - 04:50 PM
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or am i just being exceedingly thick? now that i look at it, i'm passing the url as a string(str) and comparing that to the regex. How is it supposed to figure out that the string is a url. but how do you pass a URL as an argument?

by the way i'm now trying
CODE

http://img.4chan.org/b/src/*.jpg

is that any better?
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Damage
post 7 Oct, 2008 - 01:42 AM
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is it worth learning Perl to do this?


This post has been edited by Damage: 7 Oct, 2008 - 01:46 AM
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Jayman
post 7 Oct, 2008 - 08:24 AM
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Are you scraping the HTML to get the JPEG's?

Is it being pulled directly from the URL address?

What is stored in "str"?

Need more details in order to provide a solution to your issue.
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Damage
post 11 Oct, 2008 - 01:38 PM
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just wanted to say thanks for the assistance, but I've started over and am now using strings instead of regex. less flexibility i know, but i really have no clue what I'm doing with regular expressions at the moment
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