Regex to extract URL with special characters

[abhi_madhani]

I am trying to extract URL's from html page by using following Regular Expression.

<a href="      (....till....)     "> Name </a>

 

preg_match_all('/<\s*a\s+[^>]*href\s*=\s*[\"\']?([^\"\'>]+)[\"\']>(.*)<\/a>/isU'

 

It works perfectly on most URL's. But it fails to recognise following kind of urls in HTML.

 

http://en.wikipedia.org/wiki/B'ham - Note the single quotation in the B'ham.

 

The URL's in the HTML are not encoded for special characters, hence I have to build my regex to count in URL's which have special characters in them.

Could anyone guide me for solutions towards this bend?