Regular Expressions 101

Pro

^start of string

Group 1([\s\S]*?)

Character Class[\s\S]*?

*?matches any number of characters from the set below:

\sany whitespace character

\Sany non-whitespace character

\na line-feed (newline) character (ASCII 10)

#Guestthe literal text #Guest (case sensitive)

Non-Capturing Group(?:\n.*){3}

{3}repeats the group contents below exactly 3 times:

\na line-feed (newline) character (ASCII 10)

.*any character (except for line terminators), repeated any number of times

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

25 tokens

^([\s\S]*?)\n#Guest(?:\n.*){3}

New

set wlan vap SSID enable
set wlan enable
#Guest Wireless (Password must be 8-64 characters)
add wlan vap ssid
set wlan vap  security-type WPA/WPA2

$1

set wlan vap SSID enable
set wlan enable
#Guest Wireless (Password must be 8-64 characters)
add wlan vap ssid
set wlan vap  security-type WPA/WPA2