Adds named attributes to an object.
Constants
NAMESPLIT = /^(?:(#{NCNAME_STR}):)?(#{NCNAME_STR})/u
Attributes
| [R] | local_name |
The name of the object, valid if set |
| [RW] | prefix |
The expanded name of the object, valid if name is set |
| [R] | expanded_name |
The name of the object, valid if set |
| [R] | name |
The name of the object, valid if set |

