EOS Wallet address is a 12 character long name with the following characters: .abcdefghijklmnopqrstuvwxyz12345. a-z (lowercase), 1-5 and . (period)
Its different from bitcoin, as the "wallet address" is actually a human readable name. An account has at least one key, but can have more. Those allow you do set different kind of permissions. The private and public keys that controls the accounts follow the these rules: https://github.com/EOSIO/eosjs-ecc