Re: X3: Using dynamic Repetition Parser Directives

On 31-01-16 13:24, Mike Gresens wrote:
> I tried the provided solution:
>
> auto r = rule<struct _r, std::string > {} 
>                   %= with<_n>(std::ref(n)) 
>                         [ omit[uint_[number] ] >> *(eps [more] >> char_) >>
> eps [done] ];
>
> But the string remains empty.
> And I remember something like: If you use semantic actions then you have to
> do it everywhere.
>
> auto r = rule<struct _r, std::string > {} 
>                   %= with<_n>(std::ref(n)) 
>                         [ omit[uint_[number] ] >> *(eps [more] >> char_
> [push] ) >> eps [done] ];
>
> So using an explicit push action does fill the string for me.
Is there a question?
You don't show the relevant code.

Why do you write `eps[done]`?

Lastly, the idiomatic way in X3 is to use the rule template argument:
rule<struct _r, std::string, true>

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