WikiFunctions.Parse.Parsers.AddMissingReflist C# (CSharp) Method

        public static string AddMissingReflist(string articleText)
        {
            if (!IsMissingReferencesDisplay(articleText) || !Variables.LangCode.Equals("en"))
                return articleText;

            if (ReferencesMissingSlash.IsMatch(articleText))
                return ReferencesMissingSlash.Replace(articleText, @"<references/>");

            // Rename ==Links== to ==External links==
            articleText = LinksHeading.Replace(articleText, "$1External links$2");

            // add to any existing references section if present
            if (ReferencesHeadingLevel2.IsMatch(articleText))
                articleText = ReferencesHeadingLevelLower.Replace(articleText, "$1\r\n{{Reflist}}");
            else
            {
                articleText += "\r\n==References==\r\n{{Reflist}}";

                // now sort metadata in case Category at top of article
                Parsers p = new Parsers();
                articleText = p.SortMetaData(articleText, "A", false);

                // try to move just above external links
                if (ExternalLinksHeading.IsMatch(articleText))
                    articleText = ExternalLinksToReferences.Replace(articleText, "$2\r\n$1");
                else if (Category.IsMatch(articleText))
                    // try to move just above categories
                    articleText = CategoryToReferences.Replace(articleText, "$3\r\n$1$2");
                else // not moved, so extra blank line required before heading
                    articleText = articleText.Replace("\r\n==References==", "\r\n\r\n==References==");
            }

            return articleText;
        }