clang-tidy readability-identifier-naming for Google's naming convention

clang-tidy-readability-identifier-naming-google.yml

CheckOptions:
  - key:             readability-identifier-naming.ClassCase
    value:           CamelCase
  - key:             readability-identifier-naming.ClassMemberCase
    value:           lower_case
  - key:             readability-identifier-naming.ConstexprVariableCase
    value:           CamelCase
  - key:             readability-identifier-naming.ConstexprVariablePrefix
    value:           k
  - key:             readability-identifier-naming.EnumCase
    value:           CamelCase
  - key:             readability-identifier-naming.EnumConstantCase
    value:           CamelCase
  - key:             readability-identifier-naming.EnumConstantPrefix
    value:           k
  - key:             readability-identifier-naming.FunctionCase
    value:           CamelCase
  - key:             readability-identifier-naming.GlobalConstantCase
    value:           CamelCase
  - key:             readability-identifier-naming.GlobalConstantPrefix
    value:           k
  - key:             readability-identifier-naming.StaticConstantCase
    value:           CamelCase
  - key:             readability-identifier-naming.StaticConstantPrefix
    value:           k
  - key:             readability-identifier-naming.StaticVariableCase
    value:           lower_case
  - key:             readability-identifier-naming.MacroDefinitionCase
    value:           UPPER_CASE
  - key:             readability-identifier-naming.MacroDefinitionIgnoredRegexp
    value:           '^[A-Z]+(_[A-Z]+)*_$'
  - key:             readability-identifier-naming.PrivateMemberCase
    value:           lower_case
  - key:             readability-identifier-naming.ProtectedMemberCase
    value:           lower_case
  - key:             readability-identifier-naming.PublicMemberCase
    value:           lower_case
  - key:             readability-identifier-naming.PrivateMemberSuffix
    value:           _
  - key:             readability-identifier-naming.ProtectedMemberSuffix
    value:           _
  - key:             readability-identifier-naming.PublicMemberSuffix
    value:           ''
  - key:             readability-identifier-naming.NamespaceCase
    value:           lower_case
  - key:             readability-identifier-naming.ParameterCase
    value:           lower_case
  - key:             readability-identifier-naming.TypeAliasCase
    value:           CamelCase
  - key:             readability-identifier-naming.TypedefCase
    value:           CamelCase
  - key:             readability-identifier-naming.VariableCase
    value:           lower_case
  - key:             readability-identifier-naming.IgnoreMainLikeFunctions
    value:           1

I think you also need

  - key:             readability-identifier-naming.ProtectedMemberCase
    value:           lower_case
  - key:             readability-identifier-naming.ProtectedMemberSuffix
    value:           _

@maliberty Thanks, I added ProtectedMemberSuffix. I also replaced MemberCase with equivalent public, protected, and private configurations.