it filters out most of the information and leaves the class name and the function name. in case of function without class, it will capture namespace and function name.

Determines if the string is a roman numeral.

Zabbix cefcFRUPowerOperStatus filtre for Cisco Cat 9500 HP

PasswordState Failed User Logon Dev Area Mapped: SIP DIP Account...

Selects the bracket and the items within the bracket. Also include whitespace before the bracket

Catchall regex parser for PasswordState Dev Area

Successful Heartbeat regex parser for PasswordState Dev Area

((LOOP\s+AT\s+\w\s+INTO\s+\w(.?)\s+)((INSERT|DELETE|UPDATE|MODIFY)\s+(\w\.?\?\s+)(FROM\s+\w\.\s*)?(ENDLOOP\.)))

/((20)[0-9]{2}-|1[02])-|12|3[01]))|((20)[0-9]{2}-|11)-|12|30))|((20)[0-9]{2}--|1[0-9]|2[0-8]))|((((20)(04|08|2468|13579))|2000)-[-]29)/g

Example: Find the digit that repeats three times in a row in "451999277". Regex: "(\d)\1\1" (\d) - capture group for the digit and first occurrence \1 - matches one more consecutive occurrence of captured digit