[antlr-interest] template rewrites

[Steve Ebersole]

And...

On Wed, 2009-04-29 at 18:49 -0500, Steve Ebersole wrote:
> Also, for "simple token" matches I end up with stuff like:
> 
> numeric_literal
> 	:	INTEGER_LITERAL -> template(id={$INTEGER_LITERAL.text}) "<id>"
> 	|	DECIMAL_LITERAL -> template(id={$DECIMAL_LITERAL.text}) "<id>"
> 	|	FLOATING_POINT_LITERAL -> template(id={$FLOATING_POINT_LITERAL.text})
> "<id>"
> 	;
> 
> Is the a better pattern which can be applied here?
> 
> On Wed, 2009-04-29 at 18:43 -0500, Steve Ebersole wrote:
> > I am trying to develop a grammar which uses StringTemplate for its
> > rendering.  But I find something rather annoying and wanted to see if I
> > am just missing something.  Basically I have a bunch of rules which call
> > other rules; the "top" rule is just to group like rules together.  For
> > example:
> > 
> > function
> >   : castFunction
> >   | trimFunction
> >   ...
> >   ;
> > 
> > All the rules under function return StringTemplates.  Yet in order to
> > get any output, I need to do the following:
> > 
> > function
> >   : castFunction -> {$castFunction.st}
> >   | trimFunction -> {$trimFunction.st}
> >   ...
> >   ;
> > 
> > Which seems redundant to me.  Is there something I am missing?
> > 
-- 
Steve Ebersole <steve at hibernate.org>
Hibernate.org