Re: Wisent:

I am on a phone so this will be brief.

You can return as much as you want from a rule by packing into a list.  You
then need to unpack upstream to use it.

If you have one rule that makes 2 tags, pack the data into one tag
equivalent (passes tagp) and then implement a tag expander to break it up.
The c/c++ impl does this with variables like this:

int a,b;

I hope this helps.
Eric
On Aug 23, 2015 12:39 PM, "Andrea Turso" <[email protected]> wrote:

> Dear Eric,
>
> I have hit a blocker while writing a Wisent grammar to tag a PHP buffer,
> in particular I'm using class instantiation and parameter type hinting
> information to add include-tags.
>
> I think this should enable Semantic to load and parse all required files
> to provide the appropriate completion.
>
> My understanding is that Wisent is only aware of tags that are yielded by
> a rule, so for example if I want to push an include tag I do this:
>
> class_instantiation: T_NEW qualified_name
>                      *(INCLUDE-TAG $2 nil)*
>                    ;
>
> Alternatively, if I need the name of the class being instantiated I can do
>
> class_instantiation: T_NEW qualified_name
>                      *(identity $2)*
>                    ;
>
> I am now working in a scenario where I need the class_instantiation rule
> to do both actions – push the tag and return the class name.
>
> In the following example I use *progn *to illustrate what I'm trying to
> achieve, of course the class name is returned but the tag isn't registered:
>
> class_instantiation: T_NEW qualified_name
>                      *(progn (INCLUDE-TAG $2 nil) $2)*
>                    ;
>
> Is there any way to have a rule to both push a tag and return a value?
>
> Kind regards,
> Andrea Turso
>
>
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