on *:TEXT:*[PRE]*:#CHANNELONSERVERA:{ scon 2 msg #CHANNELONSERVERB $strip($1-) }
This well catch only lines with [PRE] (case insensitive) in them.
HOWEVER if there is colors in the line as in [PRE] then it wont match. becuase the color is characters.
on *:TEXT:*:#CHANNELONSERVERA:{ if ([PRE] isin $strip($1-)) { scon 2 msg #CHANNELONSERVERB $v2 } }
well match [PRE] being in with or without colors.