Shared coding conventions allow teams to collaborate efficiently. This rule checks that all ``++Private Const++`` field names comply with the provided regular expression.
The default configuration is:
* Optionally, can start with an underscore character or "s_", e.g. ``++_foo++``, ``++s_foo++``
* Camel casing, starting with a lower case character, e.g. backColor
* Short abbreviations of 2 letters can be capitalized only when not at the beginning, e.g. "id" in productID
* Longer abbreviations need to be lower cased, e.g. html