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Re: Check/find/locate the customized function/command of a specific proj

From: Hongyi Zhao
Subject: Re: Check/find/locate the customized function/command of a specific project in Emacs conveniently/quickly/efficiently.
Date: Mon, 5 Jul 2021 09:57:47 +0800

On Mon, Jul 5, 2021 at 5:22 AM Daniel Martín <> wrote:
> Hongyi Zhao <> writes:
> > I'm currently learning the configuration used by doom Emacs [1]. For
> > example, the following code snippet shows on
> > <>:
> >
> > (use-package! company-math
> > :when (featurep! :completion company)
> > :defer t
> > :init
> > (add-to-list '+latex--company-backends
> > #'+latex-symbols-company-backend nil #'eq))
> >
> > In the above code snippet, there are some customized
> > function/command/variable, i.e., use-package!, featurep!,
> > +latex--company-backends, and +latex-symbols-company-backend, which
> > are not so easy to understand just by their names. So, I want to
> > check/find/locate the corresponding definitions for them in Emacs
> > conveniently/quickly/efficiently. Because they are customized things,
> > the
> > `M-.' doesn't work for them.
> It seems like use-package! is a macro defined by Doom Emacs, so you can
> do C-h f use-package! RET to read its documentation.  Similarly,
> +latex-symbols-company-backend seems like a Lisp variable added by Doom
> Emacs, so you can get help by doing C-h v +latex-symbols-company-backend
> RET.
> Alternatively, you can type C-h o (describe-symbol) to get documentation
> about any symbol (variable, function, etc.).

To use the above method, I must have installed Doom Emacs, but that's
not the case on my side - I just want to inspect Doom Emacs'
configurations source code for learning some mechanisms developed by

Assoc. Prof. Hongyi Zhao <>
Theory and Simulation of Materials
Hebei Vocational University of Technology and Engineering
NO. 552 North Gangtie Road, Xingtai, China

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