Preprocessing using regex versus string in the "Replace" function

[GarrettCO]

When an SNMP trap comes in, I have a macro set up to replace the varbind index information with more descriptive text before it is sent to create an incident ticket. However, it appears unable to use a regular repression within a macro and it has to be a specific string. The intent is in this example 193.183.4.1.3.5.1.4.70, the digit "70" will be any digit, and want the replace function to skip that digit in preprocessing. Using the macro in a REGULAR EXPRESSION preprocessing step works fine to produce indicated output, but using the macro as a REPLACE does not recognize the regex parameter.

MACRO
{$ALERTNAME} = "SNMPv2-SMI::enterprises.193.183.4.1.3.5.1.4.(.*) type=4 value=STRING: (.*)"
REPLACE {$ALERTNAME} = "ERICSSON ALERT"

SNMP TRAP
RAW TRAP - IN

VARBINDS:

DISMAN-EVENT-MIB::sysUpTimeInstance type=67 value=5844482
SNMPv2-SMI::enterprises.193.183.4.1.3.5.1.4.70 type=4 value=STRING: "vDicos, Diameter Link Failure"

PREPROCESSED REPLACE - OUT

VARBINDS:
DISMAN-EVENT-MIB-sysUpTimeInstance type=67 value=5844482
ERICSSON ALERT = "vDicos, Diameter Link Failure"

Based on documentation, it appears REPLACE only accepts specific string. Just reaching out to see if there is a known wildcard expression that would work.

[cyber]

Can you give link to mentioned documentation...? I'm struggling to find suitable "replace"...

[GarrettCO]

https://www.zabbix.com/documentation/7.2/en/manual/appendix/functions/string?hl=replace#replace

https://www.zabbix.com/documentation/7.2/en/manual/config/items/preprocessing#replace

These are the two I was looking at. One under Preprocessing and the the function itself.