Re: how to get left hand side symbol in action

[Hans Åberg]

> On 6 May 2019, at 18:09, Akim Demaille <address@hidden> wrote:
> 
>> Le 6 mai 2019 à 14:50, Hans Åberg <address@hidden> a écrit :
>> 
>> 
>>> On 6 May 2019, at 11:28, r0ller <address@hidden> wrote:
>>> 
>>> Hi All,
>>> 
>>> Is it possible in *any* way to get the left hand side symbol in an action 
>>> of a rule? Say, I have:
>>> 
>>> A : B C
>>> {<!-- -->
>>>   std:cout<<"left hand side symbol is:"<<???
>>> };
>>> 
>>> I tried to find it out myself and googled a lot but didn't find anything:(
>> 
>> In the C++ parser, one can write:
>> std::cout << “LHS: " << yytname_[yylhs.type_get()] << std::endl;
> 
> But it's an internal detail, there is no guarantee it won't change.

Right, so it might be a feature request for the longer term. Perhaps a 
variation of $ and @ that gives access to the name, or the raw stack value in 
case there are more stuff to access.