WikiFunctions.Tools.FilterSomeArticles C# (CSharp) Method

        public static List<Article> FilterSomeArticles(List<Article> unfilteredArticles)
        {
            List<Article> items = new List<Article>();

            foreach (Article a in unfilteredArticles)
            {
                if (a.NameSpaceKey >= Namespace.Article && a.NameSpaceKey != Namespace.MediaWiki &&
                    a.NameSpaceKey != Namespace.MediaWikiTalk && !a.Name.StartsWith("Commons:"))
                {
                    if (!items.Contains(a))
                        items.Add(a);
                }
            }
            return items;
        }