(How to?) add a direct call to citar-file-open-external from citar's "menu"

[JonatanSahar]

Is your feature request related to a problem? Please describe.
I often want to open a citation's pdf in an external program. currently I've added citar-file-open-external to embark actions on the file as it appears after I call citar-open, but this is quite a lot of keystrokes.

Describe the solution you'd like
A function that calls citar-file-open-external on the citation at point, or a snippet that shows how to do so

Describe alternatives you've considered
I've bound citar-file-open-external in citar-citation-map, but I don't know how to pass it the citekey it needs in order to work.

[bdarcus]

@JonatanSahar

I often want to open a citation's pdf in an external program. currently I've added citar-file-open-external to embark actions on the file as it appears after I call citar-open, but this is quite a lot of keystrokes.

Describe the solution you'd like
A function that calls citar-file-open-external on the citation at point, or a snippet that shows how to do so

Just want to clarify something first.

If what you want is the latter, why is the former "quite a lot of keystrokes"?

And are you aware of this defcustom? Could you not just set PDFs to use citar-file-open-external by default?

citar/citar-file.el

Line 39 in 885b86f

(defcustom citar-file-open-functions (list (cons "html" #'citar-file-open-external)

[JonatanSahar]

that's a great solution, thank you!
what I meant about keystrokes is that I'd have liked to hit RET, then a letter (e.g., f) to open the PDF externally, and in the solution that I had, I had to go RET, then o, go down to the file, then hit c-; for embark and finally f.
I'd still like to be able to open the pdf directly, but this is totally good enough for me.