confused by match_regx

Actually, the issue seems to be that the backslash needs to be escaped. This is necessary as the regex is wrapped in double quotes. If you didn't have any variables that needed to be interpreted, you could wrap the regex in curly braces.

 

 

So this code correctly logs no match:

 

 

set host "sjj-cache28.dddstatic.com"
set subdomain1 "static" 
set subdomain2 "s"
if { $host matches_regex "^(?:$subdomain1|$subdomain2)\\." }{
log local0. "matched host check for $subdomain2 on $host"
} else {
log local0. "no match on host check for $subdomain2 on $host"
} 

 

 

Aaron