Can I get completion from specific files using other modes?

[alienbogart]

First of all thank you very much for this awesome project.

Let's say I'm working on index.html using web-mode and on style. css using css-mode. If I create a class on style. css, would it be possible for it to be completed on the index.html? (setq company-dabbrev-other-buffers 't) only get completions from the same mode, and (setq company-dabbrev-other-buffers 'all) will get it from files in all modes, and that's not what I want.

Maybe there's a way to have completions by project using something projectile?

[dgutov]

This sounds similar to #709, which is unresolved.

But you could around-advice company-dabbrev-code to bind major-mode to a different value depending on the context inside the file. That would require some coding.

[alienbogart]

That would require some coding

Okay. I'm not really a programmer yet (I wish I could study Lisp, but right now I can only use Emacs to learn other languages...), so that's a bit complicated for me at the moment. But, if you can give a bit more details on how to achieve that, I'm great at recognizing patterns and following instructions.

Thanks, @dgutov!

[dgutov]

Around-advice is done with advice-add.

Temporary value binding is done with let.

As for how to figure out the exact language context at point... that would require some digging. Maybe html-mode has some function, though.

[rileyrg]

Just a little "beep" here. Any advances? I had hoped company-lsp would work in an mhtml mode buffer but i doesn't despite html-ls chugging away in lsp-mode for mhtml.

[dgutov]

@rileyrg If lsp-html is working fine in mhtml, how could company-lsp not work?

If it's the case, please report that to https://github.com/tigersoldier/company-lsp/issues

[rileyrg]

Maybe I'm doing something wrong? Before I raise any issues maybe you could cast your eye here. I'm calling lsp mode for mhtml buffers (triggered for my .html.twig file just fine). company-diag shows that only company-dabbrev is providing completions and that comes after company-lsp. I have required lsp-html but it's unclear to me just how I should configure to actually modify or direct company-lsp further. As you can see here lsp is connected to htlm-ls

company-backends: (company-lsp company-capf company-files company-web-html
(company-dabbrev-code company-gtags company-keywords)
company-dabbrev)

Used backend: company-dabbrev
Major mode: mhtml-mode
Prefix: ""
Completions:
"2018"
"TODO"
"from"

https://github.com/rileyrg/Emacs-Customisations/blob/master/lisp/emacs-config.org

[dgutov]

mxhtml? 😕

In any case, the answer is "I don't know". lsp-html and company-lsp are maintained by roughly the same people, so your best bet is to ask them.

[rileyrg]

Apologies. mhtml.