Any comments on Function.stripInvalidHostNameCharactersFromString.rsc

RouterOS Scripting
1

Docs:

returns $value without invalid characters for a Hostname
if $allowMultipleLabels is not nothing, then it also allows dots between labels

Execution:

/system script run stripInvalidHostNameCharactersFromString
:put [$stripInvalidHostNameCharactersFromString value=("a host name")]
ahostname
:put [$stripInvalidHostNameCharactersFromString value=("a host name.domain name" ) allowMultipleLabels="yes"]
ahostname.domainname

Any comments on the source: https://gist.github.com/jpluimers/de92cf8dcf3ccdbaef2d3083749c4c89