Regex to match opening Tags

While fiddling around in RegexSnippets tonight I concocted this regex to match opening tags and to capture the various elements:

          
(?'openTag'<)
    \s*?
    (?'tagName'\??\w+)
    (?:
        \s*?
        (?'attribName'\w+)
        (?:\s*(?'attribSign'=)\s*)
        (?'attribValue'
            (?:\'[^\']*\'|\"[^\"]*\"|\w+)
        )
    )*
    \s*?
    (?'closeTag'[\/\?]?>)

...and here is a script that I wrote to test it with:

using System ;
using System.Text.RegularExpressions ;

namespace RegexSnippets.Tests
{
    public class Foo
    {
        public static void Main()
        {
            string source = @"<A href="foo"><TD><A> <TABLE id=1 foo="bar">" ;
            string pattern = @"(?'openTag'<)\s*?(?'tagName'\??\w+)(\s*?(?'attribute'(?'attribName'\w+)(?:\s*(?'attribSign'=)\s*)(?'attribValue'(?:\'[^\']*\'|\"[^\"]*\"|\w+))))+\s*?(?'closeTag'[\/\?]?>)" ;

            Regex re = new Regex( 
                    pattern, 
                    RegexOptions.IgnoreCase|RegexOptions.Multiline|RegexOptions.Singleline
                ) ;
             
            for( Match m = re.Match( source ); m.Success; m = m.NextMatch() ) 
            {
                Console.WriteLine( "Open tag = {0}", m.Groups["openTag"].Value ) ;
                Console.WriteLine( "Tagname = {0}", m.Groups["tagName"].Value ) ; 
                
                if( m.Groups["attribName"].Success )
                {
                    for( int i = 0; i < m.Groups["attribName"].Captures.Count; i++ ) {
                        
                        Console.WriteLine( "Attrib Name = {0}", m.Groups["attribName"].Captures[i].Value ) ;
                        Console.WriteLine( "Attrib Sign = {0}", m.Groups["attribSign"].Captures[i].Value ) ;
                        Console.WriteLine( "Attrib Value = {0}", m.Groups["attribValue"].Captures[i].Value ) ; 
                    }
                    
                }


                Console.WriteLine( "Close tag = {0}", m.Groups["closeTag"].Value ) ; 
                Console.Write( "{0}**********************************{0}", Environment.NewLine ) ;

            }
            Console.ReadLine() ; 
        }
    }
}