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Re: How to make C++-generated parser call yylex in some polymorphic way?
From: |
Oleksii Taran |
Subject: |
Re: How to make C++-generated parser call yylex in some polymorphic way? |
Date: |
Tue, 24 Dec 2013 09:54:45 +0200 |
Wow, thanks, John, I didn't think about using %parse-param in that way.
On Dec 22, 2013, at 8:05 PM, John Horigan <address@hidden> wrote:
> I have used the technique described here:
> http://panthema.net/2007/flex-bison-cpp-example/
>
> It works with vanilla Bison from 2.3 (maybe earlier) up through 3.0.
>
> -- john
>
>
>
> On Sun, Dec 22, 2013 at 9:04 AM, Oleksii Taran <address@hidden> wrote:
> Hi all
>
> Is there a way to not call global C-style `yylex` function in generated C++
> parser? Now I just patch `lalr1.cc` to add pure virtual method `yylex` in
> parser skeleton and override it in subclass. The downside is that I can't use
> vanilla bison, and I must reapply patch on every update.
>
> Do you have any ideas how to overcome this issue?
>
> --
> Best regards,
> Oleksii Taran
> _______________________________________________
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>