Re: Opening org-cite links with different application

[Max Nikulin]

On 25/05/2022 23:00, Bruce D'Arcus wrote:
> On Wed, May 25, 2022 at 11:26 AM Max Nikulin wrote:
> > On 25/05/2022 18:00, Bruce D'Arcus wrote:
> > > You just need to set `citar-file-open-function` to your preferred
> > > function; say xdg-open.
> >
> > Is there a reason to avoid emacs global or even system global settings
> > obtained through mailcap.el? While `mailcap-view-file' is quite new
> > addition, the function was inspired by `org-open-file' and the latter
> > queries mailcap settings.
>
> No reason, other than that nobody suggested it.
>
> It could be, however, that when using citar, some users may have more
> specialized needs. For example, maybe Alessandro wants to use Sioyek
> when reading PDFs of scholarly articles and such, but the standard
> system PDF viewer otherwise.
>
> But I suppose these aren't mutually exclusive; citar could always,
> notwithstanding the bug you note below, fallback to making use of
> mailcap?

Disclaimer: I am not a citar user, so be skeptic concerning my 
suggestions. I suppose `mailcap-view-file' (when available) and 
`org-open-file' are at least reasonable defaults when a user has 
expressed their wishes by configuring citar.

It would be great to open the cited document at the particular page 
(e.g. from the locator), but there are a lot of complications on this 
way. The file may contain only a range of pages, every PDF viewer has 
its own way to specify a page or a string to search for. `org-file-apps' 
might be tuned for such purpose (modulo a bug in handling of additional 
arguments).

I have had a quick glance into the code I have an additional question 
why `browse-url' is not used for `citar-file-open-external'.

On 25/05/2022 23:24, Alessandro Bertulli wrote:
> I can't use browse-url-xdg-open because the PDF viewer I want to use
> it's not the system default one: when opening PDFs from Org-cite I
> expect to open academic documents, so I use Sioyek for them.

I mean
  (call-process "xdg-open" nil 0 nil url)
with "sioyek" instead of "xdg-open" if you do not like to set the 
application as the default handler for PDF files. It will allow to avoid 
additional settings for shell buffers. Of course, you will loose ability 
to check command output for errors, it is shoot and forget method 
suitable for most of viewers however.