How can I escape double underscores in a namespace name?

Question

I would like to use a namespace name that starts and ends with double underscores, e.g.

@startuml
namespace __builtin__ {
}
@enduml

But the name is displayed as builtin.

How can I escape the underscores?

Comments

The escape character ~ does not work for me where I have a description with a variable name that has a double underscore in the name e.g. "phonenumber__m".

The problem is that PlantUML treats this as underline and shows e.g. "phonenumber__m, city__c" as underlined before the next double underscore like this: "phonenumber__m, cityc".

Any ideas?

---

Hi D., and all,

You must to escape with `~` before the `_`, as:

@startuml
namespace "phonenumber~__m, city~__c" as example {
}
@enduml

If that can help,
Enjoy,
Regards,
Th.

---

 Many thanks The-Lu. This works. Issue solved. Excellent 

Answer 1

Hello M.,

Here is a solution:

• using plantuml escape character '~'
• and using 'double quoted label' and 'alias'

@startuml
namespace "~__builtin__" as builtin {
}
@enduml

Then we can observe the expected result:

Enjoy,
Regards,
Th.

Comments

Thanks, worked for me.

The rules for escaping seem to depend on the context. I found that in an extension relation, I have to write something like

"~__builtin__.class" <|-- namespace.subclass

Where do I find these rules in the documentation?