Re: How to make C++-generated parser call yylex in some polymorphic way?

[John Horigan]

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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