* Understand the source of "Unable to resolve link"
@ 2018-02-04 15:58 Kaushal Modi
2018-02-04 16:19 ` Nicolas Goaziou
0 siblings, 1 reply; 5+ messages in thread
From: Kaushal Modi @ 2018-02-04 15:58 UTC (permalink / raw)
To: emacs-org list
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Hello,
A user needs to support having gopher links in Org document:
[[gopher://some.gopher.site][Dummy gopher link]]
But the export fails saying that it's unable to resolve the link.
The behavior can be easily recreated by exporting a document containing
that dummy link using C-c C-e h H.
I added "gopher" to the org-html-link function, but that obviously didn't
help.
I traced the error to org-export-data in ox.el, but I cannot edebug that
function; I get:
edebug-syntax-error: Invalid read syntax: "Failed matching", (&rest
(&define name (&rest arg) cl-declarations-or-string def-body))
(I'll open an emacs bug for that.)
So what needs to be fixed in ox.el (or elsewhere?) so that gopher: protocol
links are allowed?
Thanks.
--
Kaushal Modi
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Understand the source of "Unable to resolve link"
2018-02-04 15:58 Understand the source of "Unable to resolve link" Kaushal Modi
@ 2018-02-04 16:19 ` Nicolas Goaziou
2018-02-04 16:23 ` Kaushal Modi
0 siblings, 1 reply; 5+ messages in thread
From: Nicolas Goaziou @ 2018-02-04 16:19 UTC (permalink / raw)
To: Kaushal Modi; +Cc: emacs-org list
Hello,
Kaushal Modi <kaushal.modi@gmail.com> writes:
> A user needs to support having gopher links in Org document:
>
> [[gopher://some.gopher.site][Dummy gopher link]]
>
> But the export fails saying that it's unable to resolve the link.
>
> The behavior can be easily recreated by exporting a document containing
> that dummy link using C-c C-e h H.
>
> I added "gopher" to the org-html-link function, but that obviously didn't
> help.
>
> I traced the error to org-export-data in ox.el, but I cannot edebug that
> function; I get:
>
> edebug-syntax-error: Invalid read syntax: "Failed matching", (&rest
> (&define name (&rest arg) cl-declarations-or-string def-body))
>
> (I'll open an emacs bug for that.)
>
> So what needs to be fixed in ox.el (or elsewhere?) so that gopher: protocol
> links are allowed?
I don't think Org defines gopher links. Where is it registered? In
particular, what is the export function associated to the link type?
If you don't tell Org what it a gopher link, e.g., within
`org-link-parameters', Org considers your example above as a fuzzy link,
hence the error.
Regards,
--
Nicolas Goaziou
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Understand the source of "Unable to resolve link"
2018-02-04 16:19 ` Nicolas Goaziou
@ 2018-02-04 16:23 ` Kaushal Modi
2018-02-04 16:31 ` Nicolas Goaziou
0 siblings, 1 reply; 5+ messages in thread
From: Kaushal Modi @ 2018-02-04 16:23 UTC (permalink / raw)
To: Nicolas Goaziou; +Cc: emacs-org list
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On Sun, Feb 4, 2018 at 11:19 AM Nicolas Goaziou <mail@nicolasgoaziou.fr>
wrote:
> Hello,
>
> I don't think Org defines gopher links. Where is it registered? In
> particular, what is the export function associated to the link type
Looks like[1], gopher: links can behave the same way as https:, http:, etc.
If you don't tell Org what it a gopher link, e.g., within
> `org-link-parameters', Org considers your example above as a fuzzy link,
> hence the error.
>
Thanks. I'll ask the user to update that variable (or can that be updated
in the default value?).
[1]:
https://github.com/kaushalmodi/ox-hugo/issues/132#issuecomment-362854410
--
Kaushal Modi
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Understand the source of "Unable to resolve link"
2018-02-04 16:23 ` Kaushal Modi
@ 2018-02-04 16:31 ` Nicolas Goaziou
2018-02-04 20:42 ` Kaushal Modi
0 siblings, 1 reply; 5+ messages in thread
From: Nicolas Goaziou @ 2018-02-04 16:31 UTC (permalink / raw)
To: Kaushal Modi; +Cc: emacs-org list
Kaushal Modi <kaushal.modi@gmail.com> writes:
> Thanks. I'll ask the user to update that variable (or can that be updated
> in the default value?).
Note that you cannot simply copy "http" or "https" types. As default
type links, they are hard-coded in every export back-end. It means they
do not have to set any :export property.
As a user, if you want to export a "gopher" link type, you need to
implement a function exporting it, and register it as the :export value.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Understand the source of "Unable to resolve link"
2018-02-04 16:31 ` Nicolas Goaziou
@ 2018-02-04 20:42 ` Kaushal Modi
0 siblings, 0 replies; 5+ messages in thread
From: Kaushal Modi @ 2018-02-04 20:42 UTC (permalink / raw)
To: Nicolas Goaziou; +Cc: emacs-org list
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On Sun, Feb 4, 2018 at 11:31 AM Nicolas Goaziou <mail@nicolasgoaziou.fr>
wrote:
> Note that you cannot simply copy "http" or "https" types. As default
> type links, they are hard-coded in every export back-end. It means they
> do not have to set any :export property.
>
> As a user, if you want to export a "gopher" link type, you need to
> implement a function exporting it, and register it as the :export value.
>
Thank you.
This works.
(defun org-link-gopher-export-link (link desc format)
"Create export version of LINK and DESC to FORMAT."
(let ((link (concat "gopher:" link)))
(cond
((eq format 'html)
(format "<a href=\"%s\">%s</a>" link desc))
((eq format 'latex)
(format "\\href{%s}{%s}" link desc))
(t ;`ascii', `md', `hugo', etc.
(format "[%s](%s)" desc link)))))
(org-link-set-parameters "gopher" :export #'org-link-gopher-export-link)
--
Kaushal Modi
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2018-02-04 15:58 Understand the source of "Unable to resolve link" Kaushal Modi
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2018-02-04 16:23 ` Kaushal Modi
2018-02-04 16:31 ` Nicolas Goaziou
2018-02-04 20:42 ` Kaushal Modi
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