[NTG-context] Tagged export breaks r2l alignment in tabulate

[Denis Maier]

Am 23.09.2020 um 16:04 schrieb Wolfgang Schuster:
> Denis Maier schrieb am 23.09.2020 um 14:14:
>> Hi,
>>
>> this example produces correctly aligned right-to-left text:
>>
>> ============
>> \setupalign[verytolerant,stretch]
>> \setupdirections[bidi=global,method=unicode]
>>
>> \starttext
>>
>> \starttabulate[|p|p|]
>> \NC Text
>> \NC Translation
>> \NC\NR
>> \NC\setupalign[r2l]\input ward
>> \NC\input ward
>> \NC\NR
>> \stoptabulate
>>
>> \stoptext
>> ==============
>>
>> But, this here fails:
>>
>> ============
>> \setupalign[verytolerant,stretch]
>> \setupdirections[bidi=global,method=unicode]
>> \setupbackend[export=yes]
>> \setupstructure[state=start,method=auto]
>>
>> \starttext
>>
>> \starttabulate[|p|p|]
>> \NC Text
>> \NC Translation
>> \NC\NR
>> \NC\setupalign[r2l]\input ward
>> \NC\input ward
>> \NC\NR
>> \stoptabulate
>>
>> \stoptext
>> ==============
>>
>> Why is that?
> 
> The export can lead to unwanted results in the PDF and should always be 
> done in a separate run.
> 
>> And what can I do about it? (I need tagged pdf for PDF/A compliance.)
> 
> You do you use export when you need only tagging?
> 
> 
> You can enable tagging with
> 
>      \setuptagging[state=start]
> 
> and to set the PDF format use \setupbackend but ignore the export key.
> 
> Wolfgang

Thanks, Wolfgang for that suggestion. However, that does not seems to 
solve the problem. Put differently, tagging seems to lead to the same 
sort of problems.

Denis