[antlr-interest] Rewrite Rules, inline to right side.

[John Ridgway]

Try it like this:

rule
   :  (b1=boolops -> $b1) (firstops b2=boolops -> ^(firstops $rule  
$b2) )*
   ;

i.e., with parentheses around the first two things.  I believe that  
otherwise it treats the entire rest of the line as being what it's  
going to output for the initial boolops.

I think you also ought to be able to simplify it to:

rule
     :   (boolops -> boolops) ( firstops b2=boolops -> ^(firstops  
$rule $b2) )
     ;


Peace
- John


On Mar 9, 2008, at 4:17 PM, Shaun Bogan wrote:

> Thanks for the help.
> Unfortunately, Antlr returns an error when I use the rule you
> provided.  It appears to not
> like the second = sign.  Says unexpected token '='.  I pasted exactly
> what you had and changed rule to the name of my rule (which is
> assignops).
>
> Shaun
>
>
> On Sun, Mar 9, 2008 at 1:56 PM, Johannes Luber <jaluber at gmx.de> wrote:
>> Shaun Bogan schrieb:
>>> Could someone tell me how to rewrite the following on the right- 
>>> hand side:
>>> boolops (firstops^ boolops)*
>>>
>>
>> rule
>>   :  b1=boolops -> $b1 (firstops b2=boolops -> ^(firstops $rule  
>> $b2) )*
>>   ;
>>
>> should solve this.
>>
>> Johannes
>>