System.Xml.Xsl.Xslt.XsltInput.InputScopeManager.IsExtensionNamespace C# (CSharp) Method

            public bool IsExtensionNamespace(string nsUri) {
                for (int record = lastRecord; 0 <= record; record --) {
                    if (
                        (records[record].scopeFlags & ScopeFlags.NsExtension) != 0 &&
                        (records[record].nsUri == nsUri)
                    ) {
                        return true;
                    }
                }
                return false;
            }