[stringtemplate-interest] need a null value for arguments?

[Terence Parr]

On Aug 1, 2011, at 7:10 AM, Udo Borkowski wrote:

> Not sure about the semantic of null.
> 
> E.g. assume you have this template
> 
> t(s="world") ::= "Hello <s>"
> 
> What will 
> 
> <t(null)>
> 
> render? 
> 
> a) "Hello " (i.e. same as <t("")>)
> b) "Hello world" (i.e. same as <t()>)

I would assume it would render this one since the parameters missing.

> c) "Hello null" 
> d) something else?
> 
> 
> Also: to avoid confusion with the Java null maybe call the constant 'undefined'?

I was kind of thinking that it should be null because it has the same semantics as passing all in to add().

Ter