Sharing some naming conventions is a key point to make it possible for a team to efficiently collaborate. This rule allows to check that all class names match a provided regular expression.
With default regular expression ^[a-z]|[a-z]+[a-z0-9_]*[a-z0-9]+$:
class Dream; ... endclass : Dream
With default regular expression ^[a-z]|[a-z]+[a-z0-9_]*[a-z0-9]+$:
class dream; ... endclass : dream