| From: | Domingo Alvarez Duarte <mingodad(at)gmail(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Grammar railroad diagram |
| Date: | 2021-07-09 07:56:29 |
| Message-ID: | ff6e5dee-79bf-c262-f8c4-88ec99c5479d@gmail.com |
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| Thread: | |
| Lists: | pgsql-hackers |
Hello Andres !
There is two ways to achieve it:
-1 I just add the bison grammar in CocoR format here
https://github.com/mingodad/CocoR-CPP in the examples folder.
-2 I created an small extension to Bison to do the same and published
the patch here
https://github.com/mingodad/bison/commit/da84329ebe5f4bc111ef34b2d46088b655a217f3
(bison -e yourgramar.y)
And optionally to have the best railroad diagram we need to add the
"Tokens" manually.
Cheers !
On 9/7/21 4:36, Andres Freund wrote:
> Hi,
>
> On 2021-07-03 10:39:02 +0200, Domingo Alvarez Duarte wrote:
>> I've done a experimental tool to convert bison grammars to a kind of EBNF
>> understood by https://www.bottlecaps.de/rr/ui
> It'd be nice if you could share that tool. The diagrams this can generate
> are neat...
>
> Greetings,
>
> Andres Freund
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