<html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> </head> <body text="#000000" bgcolor="#FFFFFF"> Hi Team, I need some piece of advice how to implement join in OVAL for variables if some of them are empty . I'm looking at the existing example from master which uses <concat>-<split>. However this code doesn't work as expected for empty variable var_rfg_include_config_regex in <concat> - returned result "no value", while expected would be "%^/etc/rsyslog.conf$": <a class="moz-txt-link-freetext" href="https://github.com/ComplianceAsCode/content/blob/master/linux_os/guide/system/logging/ensure_rsyslog_log_file_configuration/rsyslog_files_groupownership/oval/shared.xml#L43">https://github.com/ComplianceAsCode/content/blob/master/linux_os/guide/system/logging/ensure_rsyslog_log_file_configuration/rsyslog_files_groupownership/oval/shared.xml#L43</a> Note: <a moz-do-not-send="true" href="https://oval.mitre.org/language/version5.11/ovaldefinition/documentation/oval-definitions-schema.html#UniqueFunctionType">UniqueFunctionType</a> looks more applicable here, but it doesn't work as well with the same reason - returned result is "no value" when one of variables is empty. Can any approach be suggested to avoid getting "no value" and return expected result for sample var_rfg_all_log_files_as_string_regex variable (with joined values from defined only variables/objects)? Regards, Ilya. </body> </html>