[antlr-interest] ids+=ID question

[Gerald B. Rosenberg]

At 02:09 PM 7/25/2007, Jim Idle wrote:
> > -----Original Message-----
> > From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-
> > bounces at antlr.org] On Behalf Of John Connett
> >
> > Many thanks.  I am using Java (but I'm not an experienced Java
> > programmer).
>
>How about... (and note that I changed that to + rather than * as I don't
>like rules that match nothing, you should use jText? instead :-)
>
>jText returns [String text]
>@init {$text = ""}
>          :
>                 (       id=(STRING | EQUALS | PIPE | SPACE)
>                  {
>                      $text = $text + $id.text;
>                  }
>                 )+
>          ;
>
>Jim


If the interest is to simply reconstruct whatever matched the rule, 
how about this:

         jText returns [String text] : (STRING | EQUALS | PIPE | 
SPACE)+ { $text=$jText.text } ;

The return value will include hidden tokens, but since the rule 
includes SPACE, that may be acceptable.