org-mode export to html: links open in new tabs? - org-mode

Question

In html created from org-mode, you can have links open in new tabs if specified as
#+ATTR_HTML: target="_blank"
[[http://cnn.com][CNN]]
which I found here.
However, this doesn't work if [[http://cnn.com][CNN]] is a bulleted item. For instance,
#+ATTR_HTML: target="_blank"
- [[http://cnn.com][CNN]]
Or
- #+ATTR_HTML: target="_blank"
[[http://cnn.com][CNN]]
1) How can I make this work, and 2) can I set this html attribute for all links on a particular page by specifying some form of this option at the top (possibly some argument to #+OPTIONS:)?

Answer 1

I found adding the following works:
#+HTML_HEAD: <base target="_blank">

Answer 2

Short answer: replace string in function org-export-attach-captions-and-attributes:
diff -u -L /home/eab/.emacs.d/el-get/org-mode/lisp/org-exp.el -L \#\<buffer\ el-get/org-exp.el\> /home/eab/.emacs.d/el-get/org-mode/lisp/org-exp.el /tmp/buffer-content-8644Ge2
--- /home/eab/.emacs.d/el-get/org-mode/lisp/org-exp.el
+++ #<buffer el-get/org-exp.el>
## -1935,7 +1935,7 ##
"\\|"
"^[ \t]*\\(|[^-]\\)"
"\\|"
- "^[ \t]*\\[\\[.*\\]\\][ \t]*$"))
+ "^.*\\[\\[.*\\]\\][ \t]*$"))
cap shortn attr label end)
(while (re-search-forward re nil t)
(cond
Long comment about troubles.
Let see source code of function, which parses #+ATTR_BACKEND into text properties.
(defun org-export-attach-captions-and-attributes (target-alist)
"Move #+CAPTION, #+ATTR_BACKEND, and #+LABEL text into text properties.
If the next thing following is a table, add the text properties to the first
table line. If it is a link, add it to the line containing the link."
(goto-char (point-min))
(remove-text-properties (point-min) (point-max)
'(org-caption nil org-attributes nil))
(let ((case-fold-search t)
(re (concat "^[ \t]*#\\+caption:[ \t]+\\(.*\\)"
"\\|"
"^[ \t]*#\\+attr_" (symbol-name org-export-current-backend) ":[ \t]+\\(.*\\)"
"\\|"
"^[ \t]*#\\+label:[ \t]+\\(.*\\)"
"\\|"
"^[ \t]*\\(|[^-]\\)"
"\\|"
"^[ \t]*\\[\\[.*\\]\\][ \t]*$"))
...)))
org-export-current-backend is HTML in this case.
It works for such text
#+ATTR_HTML: target="_blank"
[[http://cnn.com][CNN]]
like this:
1) parse whole line #+ATTR_HTML: target="_blank" by regexp "^[ \t]*#\\+attr_"...
2) parse whole line [[http://cnn.com][CNN]] by regexp "^[ \t]*\\[\\[.*\\]\\][ \t]*$"
3) delete string #+ATTR_HTML: target="_blank" before export to html
4) set property target="_blank" for line [[http://cnn.com][CNN]]
And then org-mode prepares html link for export with this property.
If I replace string "^[ \t]*\\[\\[.*\\]\\][ \t]*$" by "^.*\\[\\[.*\\]\\][ \t]*$" then this patched function works for
#+ATTR_HTML: target="_blank"
- [[http://cnn.com][CNN]]
too. But there is a problem for list
- [[http://cnn.com][CNN]]
- [[http://cnn.com][CNN]]
- some text
If I put ATTR_HTML before each link
#+ATTR_HTML: target="_blank"
- [[http://cnn.com][CNN]]
#+ATTR_HTML: target="_blank"
- [[http://cnn.com][CNN]]
- some text
then I get such output html
* CNN
* CNN
* some text
There is a extra gap in list. So, I can't get output like this
* CNN
* CNN
* some text
only
* CNN
* CNN
* some text
This example demonstrates that org-mode isn't flexible in some cases. I can write lisp function, which sets this html attribute for all links in exported text, and add this feature to #+OPTIONS: or something. But I can't complicate more and more org-mode exporting system in this way, because there are some org-mode syntax limitations - it is simple.
If I have problems with org-publish like these, I think: may be I need something else for make-up except org-mode? )

Answer 3

You can include html into your template if you have couple of links, like this
My projects
- ##html:Example##