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Regex Puzzle.. :(

Started by Instigator Nov 10, 2011 at 6:47 PM 1 replies 1k views

Original Post

Nov 10, 2011 at 6:47 PM

Hi Guys,

I'm trying to grab a pdf location from a webpage ->

Here is part of the html code I am looking through:


 string sampleTextToParse = "

My Regex below can so far pickup "/$TheFile/234-023.2.1991.pdf"


 string picksUpEnd = "([/][$]TheFILE[/].{5,}(?=\\.pdf))";
 string test = Regex.Match(sampleTextToParse, picksUpEnd);
 test += ".pdf";

BUT I also have to get all text before this to the 'href=/' marker. So I believe behindlookup is the solution.
.
.
I tried


 string picksUpPath = "([/][$]TheFILE[/].{5,}(?=\\.pdf))(?<=href)=";

but this does not seem to return anything in my Regex.Match method..

Any ideas to solve this Regex problem?

CyberJay82

Nov 10, 2011 at 7:02 PM

I used something similar to help strip html links out of a document and just replace the whole html tag with just the href part.

Example:

Click Here

I would strip out the http://www.gamedev.net part and the new text would just become

http://www.gamedev.net

Here is the code I used for that:


 foreach (Match match in Regex.Matches(sampleTextToParse, "(.*)", RegexOptions.IgnoreCase))
 if (match.Groups.Count > 1)
 sampleTextToParse = sampleTextToParse.Replace(match.Groups[0].Value, match.Groups[1].Value);

I hope this helps you get what you need.

Instigator

Nov 10, 2011 at 7:49 PM

Okay, thanks..

I used some of your content to provide myself with a solution

Here's my answer if anyone needs to know for future


 string regex = "(?<=href=)([a-zA-Z0-9/\\._]*)([$]TheFILE[/]).{5,}(?=\\.pdf)"

Damn Regex is so awesome!

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