[stringtemplate-interest] [ST4] How to apply multiple "format"s to an expression?

[Udo Borkowski]

Hi Collin,

I tried out your adapter and it works fine. Thanks.


However I had to work around a more general problem. Maybe somebody has a general solution?

I already defined my own ObjectModelAdaptor for Object. As ST4 only allows one ObjectModelAdapter per class I had to change my adaptor to "call" PublicMethodModelAdapter. In my case it was easy: if my adapter does not support the given format I call the PublicMethodModelAdapter. 

This is fine because I own my code and I could change MyAdapter. But other people may want to use several third party adapters in one applications. How will this work? E.g. in the STRUM library there are already 4 adaptors for Object. What do I do if I want to use both the PublicMethodModelAdapter and the StaticMethodModelAdaptor?


Udo


On 18.02.2011, at 23:53, Collin Fagan wrote:

> This could actually be done by extending the ObjectModelAdaptor model adapter to have it check for such a method.
> 
> Such an adapter is available as part of STRUM.
> PublicMethodModelAdapter - access any public method from ST
> Humm ... but it would be interesting to build a Renderer that took a delimited set of format parameters.  
> 
> <n;format="%15s,upper">
> 
> Of course comma works great here but not for the general case .. maybe make the delimiter a parameter to the renderer? I might slap something together to try it out. 
> 
> Collin
> 
> On Fri, Feb 18, 2011 at 4:29 PM, Sam Harwell <sharwell at pixelminegames.com> wrote:
> Does this work:
> 
>  
> <(upper(n)); format="%-15s">
> 
>  
> With this definition of upper(x)?
> 
>  
> upper(x) ::= <<
> 
> <x; format="upper">
> 
> >> 
> 
>  
> Also, here’s an interesting case where if <x.y> checked for a method y() (zero parameters and non-void return value), you could use <n.toUpperCase; format="%-15s">. This could actually be done by extending the ObjectModelAdaptor model adapter to have it check for such a method.
> 
>  
> Sam
> 
>  
> From: stringtemplate-interest-bounces at antlr.org [mailto:stringtemplate-interest-bounces at antlr.org] On Behalf Of Udo Borkowski
> Sent: Friday, February 18, 2011 4:02 PM
> To: stringtemplate-interest List
> Subject: [stringtemplate-interest] [ST4] How to apply multiple "format"s to an expression?
> 
>  
> Hi,
> 
>  
> I would like to generate a constant definition like this:
> 
>  
>             public static final int ABC             = 123;
> 
>             public static final int GHIJKLMN        = 456;
> 
>  
> To make sure the "="s are aligned I can use the Java String format padding feature, e.g. use a template like this:
> 
>  
> t1(n,v) ::= <<
> 
> public static final int «n;format="%-15s"» = «v»;
> 
> >> 
> 
>  
> However the name is given in mixed case and I need to "upper" it, e.g. with something like this:
> 
>  
> t2(n,v) ::= <<
> 
> public static final int «n;format="upper"» = «v»;
> 
> >> 
> 
>  
> Is there a way to combine both formats, so I get an uppercased, right padded name?
> 
>  
>  
> Udo
> 
>  
> 
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