[accessibility] [BlindMath] Latex Table Question

[Ulrike Fischer]

Am 13.05.2024 um 21:23 schrieb Alex Watson:
>>
>> Have the tagged PDF team given any thought as to what this interface 
>> (or a minimal functional subset of it) might look like, and whether it 
>> could be made public in advance of the corresponding work on tagging?
>>
>> For instance, a very minimal solution might be as I suggested: provide 
>> a macro to explicitly tag header cells, and if it appears in a table, 
>> then abandon the heuristics and just follow the author's explicit 
>> requests. This would work just for HTML production (but I don't know 
>> if it would be sufficient for generating a valid tagged pdf table). A 
>> more advanced interface might include explicitly selecting a 
>> heuristic, etc. etc.
> 
> Of course, hitting 'send' always reveals something new. I note that 
> discussions following the 2023 TUG meeting are online here: 
> https://github.com/latex3/tagging-project/discussions/1
> 
> Naturally, my 'minimal' suggestion was already made and rebuffed.
> 
> So I guess I'm asking: does this represent the current state of things?

More or less. The current tagging code has in its table module a key to 
setup the header row(s): \tagpdfsetup{table/header-rows=1}
and I plan to add a similar key table/header-columns soon. This is 
rather easy to use and should cover a large amount of standard tables. 
But things get complicated one tables have so complicated headers that 
back references from the cells are required. We need here first a larger 
amount of examples.

Ulrike