Hello, I'm trying to parse URLs in Java logs (*.trace), it works for complete URL with this following request : index=os_win_wks sourcetype="os_win_wks:java:trace" | rex field=_raw (?<URL>https?:\/\/\S+) but I want to stop to the first "/" with this one, then I have an error message : index=os_win_wks  sourcetype="os_win_wks:java:trace" | rex (?<url>https?:\/\\[^:\/]+) Error => Error in 'SearchParser': Missing a search command before '^'. Error at position '75' of search query 'search index=* sourcetype="os_win_wks:java:trace" ...{snipped} {errorcontext = tps?:\/\\[^:\/]+)}'. Could you help me please ? ... View more