Re: [BUG] manual: confusing example of adding attributes to a link (affiliated keywords)

[Max Nikulin <manikulin@gmail.com>]

On 25/06/2022 12:29, Ihor Radchenko wrote:
> Max Nikulin writes:
> 
>>> #+ATTR_HTML: :title The Org mode homepage :style color:red;
>>> [[https://orgmode.org]]
>>
>> Likely I have seen similar suggestions in this list as well.
>>
>> Actually it assigns attribute to paragraphs in addition to links. That
>> is why, I think, this fragment should be removed from manual as a
>> confusing one since it gives impression of support of per-link attributes.
> 
> Could we clarify that the attributes will apply to the paragraph instead?

While paragraph is short, title is just redundant. When it contains a 
lot of text, the link title duplicated as a paragraph attribute becomes 
misleading since the title is applicable to link text only. When there 
are more than one object, it is impossible to set different titles to 
links or mark rel="noreferrer nofollow" only one link, keeping other as 
regular ones.

Certainly it is possible to document that attributes are mostly useful 
for image links when they are block-level elements rather than inline 
objects. Caveats of trying to use attributes for inline objects should 
be clearly stated to avoid false expectation of supported feature.

>> It states that styles and similar stuff may solve the issue with
>> attributes for inline objects. From my point of view it is wrong and in
>> some cases per-object attributes are necessary. While <a rel="nofollow
>> noreferrer" href="..."> or <a target="_blank" href="..."> may be added
>> through style, attributes like "alt" for images, "title", "lang", etc.
>> for links are individual.
> 
> You examples are pretty much dedicated to html. Do you know if
> per-object attributes could be actually useful for other export
> backends?

The following example is somewhat contrived. Try to set different 
options (width or e.g. angle) for several inline images. It applies to 
LaTeX as well:


     #+attr_latex: :center nil :options angle=30 :width 16mm
     [[file:/usr/share/icons/hicolor/48x48/apps/emacs.png]]
     and
     [[file:/usr/share/icons/hicolor/48x48/apps/emacs.png]]
     # second one should have angle=-30