Replaced earley by pacomb in the "metavar" example

[craff]

Thanks to this PR bindlib and its examples compile under ocaml 5.0

[craff]

That looks good. I'm wondering: do we need to change the comment syntax in the example?

Just the pacomb does not have (yet) a predefined blank notion with opening/closing comments. It is always tricky
because of strings, so for an example I felt one line comments are simpler.

Also, could we keep the two parsers, and compile whichever depending on whether earley or pacomb is available? We could also add a menhir parser.

If you know how to write a conditional opam file that does not force the user to install 3 parsing technologies. I still like more pacomb or earley because the parser is both readable and inside the file. By the way I wanted to make a compile time version of earley that would not allow dynamical grammar but that could be faster than camlyacc and menhir.

[craff]

Remark: we needed the lateest pacomb which is not on opam. I fixed that, but I think we need the metavar test to run. I am adding this.

[rlepigre]

You'll need to rebase your MR on master, with something like git fetch && git rebase origin/master, and then force-push to the branch.

[craff]

bindlib and metatar tests work on 4.07, but with deps Timed >= 1.0, opam is not able to select Timed 1.0 on ocaml 4.07 and 1.1 on 4.08 and more recent. If you know how to fix that (or fix Timed 1.1), we can put back 4.07 support.

[craff]

All test run. I stop for now, you may review when you have time and try to recover 4.07, it is not nice to loose a version just because of Timed used in one example. Cheers.

[craff]

Hello Rodolphe ... I just did a PR on top of that one for issue #29. Do you think we should merge that one, or there is still some adjustment ?

[rlepigre]

I don't remember where this is at, I thought I was waiting for changes on your side. I'll have a closer look when I have a moment.

[craff]

I think the only thing to do was recover 4.07, and it seems to work now. I just needed to ask for dune 2.0, not 2.7, but it seems to work.

[craff]

On en est où avec cette PR...

[rlepigre]

On en est où avec cette PR...

Aucune idée, j'ai perdu tout contexte. Je regarderai à nouveau quand j'ai un moment.

[rlepigre]

This looks good to me.