This ticket is to add the language codes for the representations of lexemes and forms in 1) Chakma, unqualified (for the Chakma script) and with the ISO 15924 subtag (lowercased) for the Bengali script, and 2) Rohingya, with a subtag for the Hanifi script.
(There is evidence of Rohingya being written in scripts other than Hanifi, such as Arabic, Latin, and sometimes Burmese, and the request for the specific script subtag for Rohingya is intended to avoid an unexpressed preference, via an unqualified language code, for one script over another, and to allow for future requests for other script codes when desired by others.)