add config example for `coc.nvim` users

[tanloong]

I am not the first one configuring typst-lsp in coc, @ysl2 has already been trying as in #422, but that issue was closed without a resolution. The original coc languageserver config property initializationOptions is marked as deprecated and now we should use settings.

[Myriad-Dreamin]

This PR runs into same situation as https://github.com/nvarner/typst-lsp/pull/497, however, I don't quite know how to solve these error :(.

[astrale-sharp]

|
123 | pub trait FileIdExt {
    |           --------- method in this trait
124 |     fn with_extension(self, extension: impl AsRef<OsStr>) -> Self;
    |        ^^^^^^^^^^^^^^
    |

this PR didn't touch FileIdExt so it seems like a problem on typst-lsp 's part tbh

[tanloong]

This PR has been open for a while. As @astrale-sharp mentioned, it doesn't change the code and isn't the cause for the failed CI checks. It's straightforward and suits the convenience for coc users. Hope we can merge it.

[jfab20]

@tanloong Sorry if this is not the place to ask this, but can you get syntax highlighting in neovim with coc and typst-lsp? I have installed typst-lsp with coc and it correctly gives me autocompletion suggestions but I have no syntax highlighting. I don't know if this is supposed to be a feature and if so, how can I enable it?

[tanloong]

@jfab20 Hi, set semanticTokens.enable to true in :CocConfig and see if it works.

[jfab20]

@jfab20 Hi, set semanticTokens.enable to true in :CocConfig and see if it works.

Thanks! Like this right?

{
"semanticTokens.enable": true,
"languageserver": {
    "typst": {
        "command": "typst-lsp",
        "filetypes": ["typst"],
        },
    }
}

I do get highlighting although it is quite minimal, for example neither headings nor math get syntax highlighting, like this:

Is this how it is supposed to be?

[tanloong]

@jfab20 It looks the same on my side. I think this is what it is supposed to be.

[tanloong]

Any chance to get it merged?