Where folder paths are configured in Roon such as Settings --> Storage --> Edit --> Ignore Paths
Whilst the paths are not case sensitive the directory separator is specific to the operating system that the Roon Core is running on.
I would suggest when parsing … treating ‘/’ or ‘’ as being a valid directory separator.
Thus these two lines would be functionaly equivalent and interchangeable
\tmp\; \temp\; \.; .pmbmf\
/tmp/; /temp/; /.; .pmbmf/
Which would remove a potential trip hazard, especially when Roon is migrated to a different OS.