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I'm getting unexpected completion suggestions in shell mode using company. For instance: enter image description here

I have no idea why it's suggesting random DLL filenames here. This is in Linux Emacs built from master of 2022-01-18, on Ubuntu 20.04 in WSL (Windows 11).

I pared my .emacs down to this (I omitted the usual straight.el setup code):

(use-package company :bind (("M-RET" . company-complete)) :demand :config (global-company-mode) (setq company-backends '(company-capf)) )

I'm not sure how to go about debugging this. The problem is not in company; I think it's that completion-at-point-function is returning these DLL names rather than anything useful (such as "then", in this case). Where should I look to start debugging this?

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    These seem like semi-legitimate completions to me. At this point, any name of an executable file in a directory on the command search path is a valid completion. Presumably those .dll files are in a directory on the command search path. However, .dll files should probably not be considered executable — on Windows, there should be a filter by extension. Commented Jan 23, 2022 at 21:00
  • That's fair, I guess. And I do think these are coming from comint completion (as you imply). But I'd expect "then" to be on the list as well, from shell-mode. Commented Jan 23, 2022 at 21:18
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    @GaryO sh-completion-at-point-function lives inside core Emacs, so your best bet to see it improve would be M-x report-emacs-bug. Commented Jan 23, 2022 at 23:37

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