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

[Denis Maier]

Am 27.09.2020 um 15:40 schrieb Wolfgang Schuster:
> Denis Maier schrieb am 26.09.2020 um 22:39:
>> 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.
> 
> It works when you set the alignment in the template of the table.
> 
> \setupdirections
>    [bidi=global,
>     method=unicode]
> 
> \setuptagging
>    [state=start]
> 
> \starttext
> 
> \starttabulate[|pA{righttoleft}|p|]
> %\NC \raggedleft Text    \NC Translation \NC\NR
> \NC \rightaligned{Text} \NC Translation \NC\NR
> \NC \input ward         \NC \input ward \NC\NR
> \stoptabulate
> 
> \stoptext

Ok, that works. Is it possible to define that both cells in the first 
row as left to right? (Like in the definition, not in the cell.)

Best,
Denis