I just want to find an IP address in /ip fire connection

but src-address is in a form like 192.168.0.5:88 , i.e., IP:Port

I just want the IP only.

I thought of 192.168.0.5:88 . "\b" and it worked in terminal,
but in log, \b appears like a black dot.


is there a function to split string ?

:global ip 192.168.1.1:88
:put [:pick $ip 0 [:find $ip ":"]

thanks. it's very kind of you to answer my simple question