Question

I am writing a discover service that takes a URL and returns the HTML located at that page.

From that page, I need to “scrape” all the WSDL URL’s.

So I need something like the following, but I am not sure how to specify the regex to pass into the pattern matching.

string wsdlPattern = //SOME REGEX THAT MATCHES WSDL http:{address}wsdl
Regex wsdlRegex = new Reges(wsdlPattern);
MatchCollection matches = wsdlRegex.Match(html);

Can somebody please help me figure how I can do this?

Answer 1

Try this:

http://[^\s]*?.wsdl

The regular text parts are obvious: it needs to start with http:// and end with .wsdl. [^\s] means “any non-whitespace character”, and *? means “as few as possible” (this is necessary in case you have something like http://www.blah.com/a.wsdl<br>http://www.blah.com/b.wsdl. Without the ?, you’d match that whole thing as one string.)

This isn’t perfect, but it should get you started.

If you want to play with regex, this is a great resource:
http://www.gskinner.com/RegExr