[syslog-ng] regex and $1..$9 documentation

I understand regex just fin, I don't need a reference to regular expressions, but I can't find any reference in the syslog-ng documentation to using the $1..$9 syntax for template creation and how that works if multiple filters are used/matched and what regex syntax is supported such as .{5,419}test(ed|ing) syslog Any reference would be good :-) -- Evan Rempel erempel@uvic.ca Senior Programmer Analyst 250.721.7691 Computing Services University of Victoria