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Re: LSP Server for Scheme (and more ...)


From: Christine Lemmer-Webber
Subject: Re: LSP Server for Scheme (and more ...)
Date: Wed, 27 Sep 2023 15:27:24 -0400
User-agent: mu4e 1.10.5; emacs 28.2

I thought I'd re-highlight this thread, given the thread I just greated
and the one on guix-devel. :)

"Ricardo G. Herdt" <r.herdt@posteo.de> writes:

> Thank you all, that's exactly my motivation :) If someone wants to add
> support to a different editor/IDE, feel free to ask for help or share
> your ideas with me.
>
> Regards,
>
> Ricardo
>
> Am 11.06.2022 04:07 schrieb Aleix Conchillo FlaquƩ:
>> Yes!!! This is amazing and things like this can expose Guile to many
>> more people. Even though I've been using Emacs for many years, I
>> believe it's not great for newcomers to hear "if you want a good Guile
>> environment you can only use Emacs".
>> Congratulations again, this was such an important missing piece!
>> Best,
>> Aleix
>> On Fri, Jun 10, 2022 at 3:05 PM <r.herdt@posteo.de> wrote:
>> 
>>> Hi Guilers!
>>> I want to share a couple of things I have being working on that you
>>> may
>>> find useful.
>>> 1) I developed an LSP Server for Scheme. For those that don't know
>>> the
>>> Language Server Protocol (LSP), it is meant for adding programming
>>> language support for IDEs and editors that implement the protocol
>>> (nowadays most of them support it).
>>> For now I am focusing on Guile 3 and CHICKEN 5. The idea is to
>>> write as
>>> much R7RS for common code as possible (like representing documents,
>>> fetching word under cursor etc.) and leave implementation specific
>>> code
>>> to dedicated files. So far I managed to implement auto-completion,
>>> fetch
>>> signature, fetch documentation and jump to definition.
>>> Repo: https://codeberg.org/rgherdt/scheme-lsp-server [1]
>>> 2) An LSP server without a client is quite useless, so I'm also
>>> sharing
>>> an emacs-lsp client:
>>> Repo: https://codeberg.org/rgherdt/emacs-lsp-scheme [2]
>>> I will create a PR to melpa for this. Until it is merged, you can
>>> clone
>>> the repo somewhere, 'load' it and follow the instructions in the
>>> README
>>> to activate it.
>>> Usage is based on interaction with the REPL, which is based on
>>> Emacs's
>>> built-in scheme inferior-mode. So you have to load the file (say by
>>> typing C-c C-l on a buffer) in order to get access to symbols
>>> imported
>>> from other modules.
>>> Note: for daily use you probably should stick to Geiser, since its
>>> Guile
>>> support is obviously much more mature. It can still become useful
>>> for
>>> other Schemes though, and is a good way to develop the LSP server
>>> without leaving Emacs ;)
>>> 3) The whole idea behind LSP is to improve language support across
>>> multiple IDEs/editors. So I started a proof of concept in VS Code:
>>> https://codeberg.org/rgherdt/vscode-scheme-lsp [3]
>>> Since I don't use VS Code, I don't expect spending much time on it.
>>> I
>>> also don't know how a lispy LSP client should/could look like in VS
>>> Code. If you have ideas, or want to contribute/take over this, feel
>>> free
>>> to contact me. It is not documented nor published yet, but already
>>> works
>>> for the functionality mentioned (there are a couple of command to
>>> launch
>>> a REPL and load files on it). I will investigate how to automate
>>> installation of the LSP server before publishing it and let you
>>> know.
>>> Everything is on an early stage of development, and APIs may
>>> change. I
>>> tested it using following software:
>>> - Guile 3.0.8
>>> - Emacs 27.1 and 28.1
>>> - Debian Bullseye and Ubuntu 18.04
>>> Any questions, suggestions, critics and contributions are more than
>>> welcome. We can also reach me on @libera's #guile, #chicken,
>>> #scheme
>>> channels by the name rgherdt.
>>> Have a nice weekend you all!
>>> Ricardo
>> Links:
>> ------
>> [1] https://codeberg.org/rgherdt/scheme-lsp-server
>> [2] https://codeberg.org/rgherdt/emacs-lsp-scheme
>> [3] https://codeberg.org/rgherdt/vscode-scheme-lsp




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