Smrf.NodeXL.GraphMLLib.TwitterGraphMLUtil.UrlsToDomains C# (CSharp) Method

    UrlsToDomains
    (
        String spaceDelimitedUrls
    )
    {
        Debug.Assert(spaceDelimitedUrls != null);

        StringBuilder domains = new StringBuilder();

        foreach ( String url in spaceDelimitedUrls.Split(new Char[]{' '},
            StringSplitOptions.RemoveEmptyEntries) )
        {
            String domain;

            if ( UrlUtil.TryGetDomainFromUrl(url, out domain) )
            {
                domains.AppendFormat(
                    "{0}{1}",
                    domains.Length > 0 ? " " : String.Empty,
                    domain
                    );
            }
        }

        return ( domains.ToString() );
    }