[stringtemplate-interest] Including optional keywords as parameters to String Template

[parrt at cs.usfca.edu]

Label is only set if it's matched on input stream

Sent from my iPhone

On May 15, 2009, at 7:37 PM, jevitha <jevitha at gmail.com> wrote:

> Hi ,
>
> ya .. but that should be sent only if it exists in my input ... so  
> is there an equivalent of ? in string template rewrite rules?
> So that in the example
>
> className : (('.module')? name1 ) slashedName ;
>
> .module will be sent only if it occurs ?
>
> in parser and tree grammar ? is supported, is it the same with  
> string template rewrite rule ...
>
>
> On Fri, May 15, 2009 at 10:43 PM, Terence Parr <parrt at cs.usfca.edu>  
> wrote:
> I'd label it with t='.module' and then pass it in as $t.
> Ter
> On May 14, 2009, at 10:48 PM, jevitha wrote:
>
>>
>> Hi,
>>
>>   I have a rule in my tree grammar (same in my parser grammar)  
>> which has optional attribute which can occur in my input :
>>
>> className : (('.module')? name1 ) slashedName ;
>>
>> How can i construct a string template to include the optional  
>> attribute (here its .module) to be sent as a parameter to the  
>> template only if it occurs ... Since it is a keyword, and there is  
>> no separate lexer rule written to match '.module' separately, I  
>> dono how to pass the .module keyword as optional parameter to the  
>> template.
>>
>> .module keyword should be filled in the blank space of the  
>> following rewrite rule:
>>
>> className : (('.module')? name1 ) slashedName
>>        -> className(....... assemblyname = {$name1.st}  
>> methodname={$slashedName.st})
>>       ;
>>
>> Kindly suggest.
>>
>> Best Regards,
>> Jevitha
>>
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>> stringtemplate-interest mailing list
>> stringtemplate-interest at antlr.org
>> http://www.antlr.org/mailman/listinfo/stringtemplate-interest
>
>
>
>
> -- 
> Best Regards,
> Jevitha
>
> "Faith is to believe what you do not see; the reward of this faith  
> is to see what you believed in."
>
>
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