Wildcard entry in file path for items like vfs.file.regexp

[sonavaneu]

Hi

I want to specify variable path name for defining item for my host for vfs.file.regexp with wildcard character (like */ ?/ etc).

For me absolute path works correctly for:
vfs.file.regexp["/usr2/user_nam/11/2a/text.txt",Error,]

but variable path with wildcard character (*) like following dose not work for Zabbix 2.2:
vfs.file.regexp["/usr2/user_nam/*/*/text.txt",Error,]

Can your please let me know whether wildcard character like "*" or "?" are allowable in such case?
If yes, where I might be going wrong.

Thanks & Regards
Umesh