[stringtemplate-interest] H2 test a value

[Terence Parr]

On Nov 23, 2005, at 7:36 AM, Jesper Goertz wrote:
> I see, rest() is not needed, the filter below works fine.
>
>     String templates =
>       "group test;" +newline+
>       "t(m,ns) ::= << <ns:{n|<if (!m.(n))><n><endif>};
> separator=\",\"> >>" +newline;
>     StringTemplateGroup group = new StringTemplateGroup(new
> StringReader(templates), AngleBracketTemplateLexer.class);
>
>     HashMap filter = new HashMap();
>     filter.put("42", Boolean.TRUE);
>     String[] numbers = new String[]{"3","11","42","87"};
>
>     StringTemplate a = group.getInstanceOf("t");
>     a.setAttribute("m", filter);
>     a.setAttribute("ns", numbers);
>
>     String expecting =" 3,11,87 ";
>     String result = a.toString();
>     assertEqual(result, expecting);
>
> And I found stringtemplates at www.codegeneration.net looking for a
> tool to generate wrapper classes from remote interfaces. The filter is
> needed because the wrapper methods should not throw
> java.rmi.RemoteException.

Hi. Seems to me that

t(m,ns) ::= << <ns:{n|<if (!m.(n))><n><endif>}; separator=\",\"> >>

will "work", but it's probably something you want to avoid--it's a  
hack ;)  If you need to filter, why shouldn't this be done in the  
model/controller rather than the view?  Surely the programming  
language is better at filtering lists than stringtemplate and would  
properly separate model from view. :)

Ter