# Is `path` accepted depending on `whitelist_exts` and `blacklist_exts`?
	fun accept_file(path: String): Bool do
		var ext = path.file_extension
		if ext != null then
			ext = ext.to_lower
			if blacklist_exts.has(ext) then return false
			if whitelist_exts.not_empty and not whitelist_exts.has(ext) then return false
		end
		return whitelist_exts.is_empty
	end