Hi Pablo,

If simple markdown is key here, why not hack the link syntax? Nobody ever 
links to 'fr' or 'en-gb' so we could write:

[savoir-faire](fr)

and use a filter that picks up links with 'xx' or 'xx-xx' targets and 
returns whatever you want (probably a Span with lang attribute):

-- langTags.lua
function Link (l)
if l.target:match('^%a%a$') or l.target:match('$^%a%a%-%a%a$') then
return pandoc.Span(l.content, { lang = l.target})
end
end

Example

$> echo '[savoir-faire](fr)' | pandoc -L lanTags.lua 
<p><span lang="fr">savoir-faire</span></p>

$> echo '[savoir-faire](fr)' | pandoc -L langTags.lua -t native
[ Para
    [ Span
        ( "" , [] , [ ( "lang" , "fr" ) ] ) [ Str "savoir-faire" ]
    ]
]

Best,
J

On Wednesday, March 15, 2023 at 7:45:33 PM UTC Pablo Rodríguez wrote:

> On 3/15/23 09:32, BPJ wrote:
> > At least you can abbreviate `[rien]{lang=fr}` to `[rien]{l=fr}` --- a
> > reduction from five to two chars instead of from five to one is at least
> > better than none!
>
> Many thanks for your reply, BPJ.
>
> I’m afraid these kinds of abbreviations make the source almost unreadable.
>
> If there is no lightweight syntax for an attribute, I guess complete key
> names are better (I mean, `class="first"` is more readable than
> `c="first"`).
>
> > (And Pandoc allows you to omit the quotes around the
> > attribute value if the value is a valid name.)
>
> I know, this would be great if it would be standard XML practice.
>
> Otherwise, it isn‘t the best habit when you have to write complete XML 
> code.
>
> Many thanks for your help,
>
> Pablo
>

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