[NTG-context] Convertnumber with \ref[number] fails in MkIV, works in LMTX

[Rik Kabel]

On 2022-01-19 12:39, Rik Kabel via ntg-context wrote:
>
> This is still a problem with the current standalone.
>
>     \definelabel[X][text=]
>     \startTEXpage[offset=1cm]
>       \X\X[a]\X[b]\X\par
>       \convertnumber{R}{\ref[number][a]}
>       \convertnumber{G}{\ref[number][b]}
>     \stopTEXpage
>
>     %% The above example fails to compile when there is no tuc file,
>     %%    complaining of a missing number in line 4. When lines 4
>     %%    and 5 are removed and the file is compiled, producing
>     %%    a .tuc file, and then they are restored, the example
>     %%    compiles without error. The effect of having or not having
>     %%    an associated .tuc file does seem a bit odd.
>
> Surely there is a way to get the number from a label reference that 
> can then be converted to a numeral of choice.
>
> -- 
> Rik
>

(A year later) Is there still no way to do this without resorting to the 
.tuc-file gimmick?

The need is to take a label reference number and display it under a 
different numberconversion regime.

-- 
Rik
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