Puppet

It’s possible to create a class with ‘::’ in its name – though using that class is not possible everywhere, and requires quoting the class name in other places. It seems the grammar does not accept @fqname@ in all the places it would need to. Example:

class puppet::base {
  exec { echo: command => "/bin/echo yo" }
}

# The use of puppet::base causes a syntax error, even if
# it is in single- or double-quotes
class puppet::sub inherits puppet::base { 
  exec { sub-echo: command => "/bin/echo sub" }
}

puppet::base { } # Always an error, regardless of quoting

# This works if quoted, because include is a function
include "puppet::base"

I would just remove the ability to have ‘::’ in class names until there is a clearer need and concept of namespace support (e.g., with a way to enter a namespace explicitly, like ‘module base’, and a definition of how variables and components behave wrt namespaces)