Re: leading superscript on a line for ODT export

[Max Nikulin]

On 16/03/2022 21:04, Greg Minshall wrote:
> hi.
>
> >      @@org:@@^1 blah
>
> i'm not familiar with the '@@' construct.  in the manual, searching for
> the string "@@", i see references to various =@@foo...=, but not, for
> example, =@@org:@@=.
>
> is there a general definition?  might the index (or, one of the indices)
> usefully have references to various "special" characters (like "^", "|",
> and "@" when used in TODOs, iiuc)?

I have not found definition of export snippet in the manual as well, so:
https://orgmode.org/worg/dev/org-syntax.html#Export_Snippets

It is an export snippet that is expanded to nothing and "org" is the 
backend name (alphanumeric characters). I choose "org" for two reasons:
- `org-lint' might report unknown backend (it does not do it currently 
though and `ox-org' is not loaded by default)
- perfect solution should survive after export to org. From my point of 
view, it is a bug in `ox-org' that it ignores @@org:...@@ (and other) 
export snippets. My expectation that they should be copied verbatim to 
allow further export to arbitrary format.

So the main problem with

    @@org:@@^1 one

that it would not work after export to org.

Another solution:

    #+options: broken-links:t

    [[#not-found][{}]^2 two

It works but the price is that really broken links may remain unnoticed.

A custom entity may be better:

    #+begin_src elisp :exports (if (org-export-derived-backend-p 
org-export-current-backend 'org) "sources" "results") :results silent
      (setq org-entities-user '(("relax" "" nil "" "" "")))
    #+end_src

    \relax^3 three

Actually all these recipes are the outcome of flame in the threads about 
intra-word markup. Notice that a macro expanded to empty string does not 
work.

P.S. Juan Manuel, I was expecting that you suggested a custom link:

    #+begin_src elisp :exports (if (org-export-derived-backend-p 
org-export-current-backend 'org) "sources" "results") :results silent
      (org-link-set-parameters
       "discard"
       :export (lambda (_path _descr _backend) ""))
    #+end_src

    [[discard:][{}]]^5 four