Multi-LSP-server

[GB18030-2000]

This is the first time I hear about this, thanks to this comment on lobste.rs:

https://lobste.rs/s/vqd2oj/emacs_30_2_is_here#c_fysf0y

Does ecode support this?

[SpartanJ]

ecode can handle any number of LSPs running in parallel for different buffers but currently it only supports a single LSP per buffer (which is what they are talking about). The main issue is the protocol which is not properly designed for multiple-LSPs per-buffer, so all the implementations supporting that are essentially hacks. I plan to support some specific cases for multi-buffer but I still need to investigate a little bit further, they usually implement it by requesting to multiple-LSPs the same command and merging the result, which I consider it quite bad.

[SpartanJ]

The multi-plexer solution is a server side solution to avoid having to implement anything on the client (in this case the cliend would be ecode). They mention lspx, which could be used in ecode at any time (no need for any changes from our side). Traditionally the solution is implemented client side, on the thread people mention they want to normally use the LSP + an specialised linter, it seems that emacs does not have the equivalent of an linter plugin like ecode, in ecode this is solved by using external linters + lsp linting and merging the results, which is what they are basically trying to achieve. But multi-LSPs can do potentially much more than linting, that's where it starts to get complicated.

[GB18030-2000]

What do you think about copy whatever VSCode does? VSCode is the industrial standard.

BTW, ecode has sublime-text as one of the tags on the project's description. What does Sublime Text do regarding this?

[SpartanJ]

What do you think about copy whatever VSCode does?

I don't think I need to copy anything in this case, since there's no standard for this, I just need to think about the problem myself a little bit I do whatever I think it's best (which is the part I enjoy the most of developing my own editor), if it happens to be the same as what vscode does, cool, but I don't particularly care.

VSCode is the industrial standard.

I don't agree, vscode being the most popular editor doesn't make it the industry standard, it's just maybe the most influential, which doesn't make it the best.

BTW, ecode has sublime-text as one of the tags on the project's description. What does Sublime Text do regarding this?

It's common practice to add tags of similar projects for visibility, since the project will appear in searches mentioning those tags.

[GB18030-2000]

But you still haven't reply this question:

What does Sublime Text do regarding this?

AI said Sublime Text, through its LSP (Language Server Protocol) package, supports the use of multiple Language Servers simultaneously for a single file type.. The answer is indeed much longer but I don't think I should copy it here. Seems something worth to learn from.

[SpartanJ]

Yes, I'm aware of how most editors handle it at a high level, as I said, I just need to think through it but in the ecode's context. Also, there are many many details, LSP is a quite large protocol, most of the editors just handle multi-LSPs in a single buffer with a very limited set of features.