< gets lost on completion

[iselind]

I've verified this issue to be present both when using xsd and RelangNG schemas.

Writing a docbook I write "<p" to start a new para node. I get a bunch of suggestions from the LSP and they are listed as expected in Vim as a float as I have coc-xml installed.

Most of the possible completions lack the angle brackets so when I choose "para" for example, then what I initially wrote as "<p" gets replaced by "para". I expect the result to be "".

I'm not sure if this is a bad config on my end but I lean towards it. Many others would complain about this if it really was a bug in the LSP. I cannot say which configuration it is though.

Can you give me some hints/ideas on what I can check?

I have no settings in my coc-settings.json for coc-xml. I've tried to uninstall coc-xml and install it again. The problem persist.

It might not even be an LSP issue as such. I tried installing https://www.npmjs.com/package/@xml-tools/language-server instead of coc-xml but using that produce the same issue as well.

Any hints and suggestions you can come up with is appreciated.

[angelozerr]

Please try vscode-xml to check if you have the same issue.

If not perhaps it is a bug from your lsp support?

[iselind]

I'm using coc-xml, which is the port of vscode-xml for coc.nvim. So I'd say I am already trying that.

I cannot see what else to do.

[angelozerr]

You mean that you have this issue with vscode-xml?

[enxio]

I tried setting that up as well and it seems starting with lemminx 0.27 there was some incompatible change in the implementation of the LSP protocol in lemminx. I solved this by using org.eclipse.lemminx-0.26.1-uber.jar in ~/.config/coc/extensions/coc-xml-data and deleting the one (the latest?) that was downloaded by the coc extension installer.

[mickaelistria]

FWIW, I cannot reproduce it using LemMinX in Eclipse IDE through Wild Web Developer.

[angelozerr]

@enxio please try with vscode-xml and tell us if you have the same issue. As @mickaelistria said there is no problem with Eclipse IDE.

[enxio]

vscode-xml works fine for me. It seems the OPs problem is with the coc-xml plugin nvim uses. And that can be resolved, at least for me, by using an older lemminx version.

[angelozerr]

Ok so the problem comes from your LSP support. From which version of lemminx have you your issue?

[angelozerr]

To understand more the problem, I suggest that you compare LSP traces completion from vscode-xml and coc-xml.

[enxio]

For me(!) it stopped working with 0.27. My very limited understanding is that this might be related to #1561. I think the problem is that coc-xml is in need for an update to address that.

[angelozerr]

If your LSP support, supports itemDefaults, it means that there is a bug in your LSP support. If it doesn't support it, it means that there is a bug on lemminx side which should support the both (with and without itemDefaults support)

[angelozerr]

Please share your LSP trace with coc-xml and vscode-xml to compare them.

[enxio]

Although this is not my issue at all and everything I need is working perfectly fine: I can provide you with diff of a trace of version 26.1 vs. one of version 29. Would that diff help?

[angelozerr]

Yes please.

[enxio]

It's attached. I hope this helps.

diff/patch of trace version 26/29