Split a lowercased placeholder token into its base name and 1-based instance index. account_id -> ['account_id', 1]; account_id_2 -> ['account_id', 2]. A bare _1 suffix is also treated as index 1 (e.g. cidr_1).
account_id
account_id_2
_1
cidr_1
Split a lowercased placeholder token into its base name and 1-based instance index.
account_id-> ['account_id', 1];account_id_2-> ['account_id', 2]. A bare_1suffix is also treated as index 1 (e.g.cidr_1).