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From: Daniel P Gomez <gomez.danp@gmail.com>
To: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Cc: emacs-orgmode@gnu.org
Subject: Re: How to keep correct filepaths when using the #+INCLUDE derivative?
Date: Fri, 2 Mar 2018 15:16:21 +0100	[thread overview]
Message-ID: <CAJTMgxihg-gyPkgjyzX89ejcbDfNP8OuZ-QHuu9sfO+AvmGt3A@mail.gmail.com> (raw)
In-Reply-To: <87h8pzifk7.fsf@nicolasgoaziou.fr>

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I've adapted the code such that it handles both bracketed and
unbracketed links, and links with descriptions.
As it is now, the changes are always automatically applied.

> Also, rewriting needs not be always absolute path, if both directories
> share a common root.

I couldn't find a simple way of rewriting links without making them
absolute, as `org-export--prepare-file-contents` does not have access
to the path of the including file, only of the included file.



On Thu, Mar 1, 2018 at 11:42 PM, Nicolas Goaziou <mail@nicolasgoaziou.fr> wrote:
> Hello,
>
> Daniel P Gomez <gomez.danp@gmail.com> writes:
>
>> Currently when passing the :absolute-paths toggle to an include
>> derivative, as in :
>>
>> #+INCLUDE: file.org :absolute-paths t
>>
>> The function `org-export--prepare-file-contents` will automatically
>> deduce the directory from file.org and adapt links by calling:
>> `(new-path (expand-file-name old-path (file-name-directory file)))`.
>> I could either make this a default option, such that links get
>> corrected but users can overwrite this by calling `:absolute-paths
>> nil`, or I could completely remove this toggle and always correct
>> links no matter what.
>
> I am wondering about the latter. If there is no reason to keep broken
> file names, it makes sense to automatically apply it.
>
> Also, rewriting needs not be always absolute path, if both directories
> share a common root.
>
>> One question regarding the implementation, currently I'm deleting the
>> link with a call to `delete-region` and using `(insert "[[file:"
>> new-path "]]")` to insert the corrected one. This does not take into
>> consideration whether links are bracketed or not ( is there a
>> functional difference if links are not bracketed?).
>
> Yes. White spaces are handled differently in each link type.
>
>> Also, my approach completely disregards link descriptions, which may
>> be relevant if the linked file would be, for example, an html
>> document. Would there be a cleaner org approach to replace the path
>> keeping the description?
>
> You could check :contents-begin and :contents-end for the link. If they
> are not nil, extract this region, and insert it again in the new link.
>
> Regards,
>
> --
> Nicolas Goaziou                                                0x80A93738

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From feccfe829ea9fa4f44c47d8c845ed602d2945dcd Mon Sep 17 00:00:00 2001
From: Daniel Gomez <d.gomez@posteo.org>
Date: Fri, 2 Mar 2018 14:46:41 +0100
Subject: [PATCH 1/1] Fix file links when using #+INCLUDE

---
 lisp/ox.el | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/lisp/ox.el b/lisp/ox.el
index bd49a8a26..8f0aca989 100644
--- a/lisp/ox.el
+++ b/lisp/ox.el
@@ -3476,6 +3476,34 @@ Optional argument FOOTNOTES is a hash-table to store footnotes in
 the included document."
   (with-temp-buffer
     (insert-file-contents file)
+    (goto-char (point-min))
+    (while (re-search-forward org-any-link-re nil t)
+      (let ((link (save-excursion
+		    (backward-char)
+		    (org-element-context))))
+	(when (string= (org-element-property :type link) "file")
+	  (let* ((has-bracket (string=
+			       (org-element-property :format link) "bracket"))
+		 (has-content (org-element-property :contents-begin link))
+		 (old-path (org-element-property :path link))
+		 (new-path (expand-file-name old-path
+					     (file-name-directory file)))
+		 (raw-new-link
+		  (concat "file:" new-path))
+		 (new-link
+		  (cond
+		   ((and has-bracket (not has-content))
+		    (concat "[[" raw-new-link "]]"))
+		   ((and has-bracket has-content)
+		    (let ((description
+			   (buffer-substring
+			    (org-element-property :contents-begin link)
+			    (org-element-property :contents-end link))))
+		      (concat "[[" raw-new-link "][" description "]]")))
+		   (t raw-new-link))))
+	    (apply #'delete-region (list (org-element-property :begin link)
+					 (org-element-property :end link)))
+	    (insert new-link)))))
     (when lines
       (let* ((lines (split-string lines "-"))
 	     (lbeg (string-to-number (car lines)))
-- 
2.16.2


  reply	other threads:[~2018-03-02 14:16 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-28 13:29 How to keep correct filepaths when using the #+INCLUDE derivative? Daniel P Gomez
2018-02-28 17:51 ` Nicolas Goaziou
2018-02-28 20:11   ` Daniel P Gomez
2018-03-01  1:01     ` Daniel P Gomez
2018-03-01 18:32       ` Nicolas Goaziou
2018-03-01 18:56         ` Daniel P Gomez
2018-03-01 22:42           ` Nicolas Goaziou
2018-03-02 14:16             ` Daniel P Gomez [this message]
2018-03-03  1:24               ` Nicolas Goaziou
2018-03-03 13:06                 ` Daniel P Gomez
2018-03-06  8:51                   ` Nicolas Goaziou
2018-03-10 11:28                     ` Daniel P. Gomez
2018-03-18 15:15                       ` Nicolas Goaziou

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