simple_cpf_cnpj

https://github.com/DaviMedrade/simple_cpf_cnpj

Provides the module CpfCnpj, with methods that detect, validate, and format CPFs and CNPJs (Brazilian federal ID numbers). // Fornece o módulo CpfCnpj, com funções que detectam, validam, e formatam CPFs e CNPJs.