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Re: text is not parsed correctly due to shift/reduce conflict
From: |
Hans Åberg |
Subject: |
Re: text is not parsed correctly due to shift/reduce conflict |
Date: |
Sun, 25 Jul 2021 14:48:11 +0200 |
Indeed, there is an example in the Bison manual, sec. 1.5.2, on how to use GLR
resolve C++ style ambiguities. C++ is not LALR, so if using that, one has to
write a grammar for a larger language and cut it down in the actions.
> On 25 Jul 2021, at 09:45, Alex Shkotin <alex.shkotin@gmail.com> wrote:
>
> or try %glr-parser command - it helps in my case:-)
>
> сб, 24 июл. 2021 г. в 21:16, Hans Åberg <haberg-1@telia.com>:
>
> > On 24 Jul 2021, at 16:34, Guenther Sohler <guenther.sohler@gmail.com> wrote:
> >
> > When trying to code a c language parser I got a issue with shift/reduce
> > conflict in bison, which actually hurts me.
>
> You might check the LALR(1) grammars for C and C++ others have done. Two
> examples:
> https://isocpp.org/wiki/faq/compiler-dependencies#yaccable-grammar
> http://www.quut.com/c/ANSI-C-grammar-y.html
>
>
>