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

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

[Rik Kabel via ntg-context]

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Hello list,

The following fails with ConTeXt  ver: 2021.10.24 21:45 MKIV but works 
with the companion LMTX. The error message is:tex error       > tex 
error on line 6 in file G:/TestConTeXt/convert.tex: ! Incompatible glue 
units , pointing to the second \convertnumber line.

    \definelabel[XX]%[text=,before=,after=,alternative=inright]
    \startTEXpage[offset=2em]
      abc\XX[xx]\par
      \ref[number][xx] ·
      \convertnumber{r}{1} ·
      \convertnumber{R}{\ref[number][xx]}
    \stopTEXpage

In this case I am trying to display with roman numerals the number 
generated in the label created through \definelabel.

Suggestions welcomed.

-- 
Rik

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Re: Convertnumber with \ref[number] fails in MkIV, works in LMTX

[Rik Kabel via ntg-context]

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Following up on my own note, I see that this fails under LMTX if 
compiled in a clean directory, but succeeds if first compiled with the 
troublesome line removed, and then, restoring the line, compiled a 
second time. It also works by placing a .tuc file from an older version 
of the document into the directory before compiling. Very strange 
indeed. The expected output, from one of those successful compilations:

So. I am clearly doing something wrong, but sometimes LMTX is letting me 
get away with it.

-- 
Rik

On 10/27/2021 21:47, Rik Kabel via ntg-context wrote:
>
> Hello list,
>
> The following fails with ConTeXt  ver: 2021.10.24 21:45 MKIV but works 
> with the companion LMTX. The error message is:tex error       > tex 
> error on line 6 in file G:/TestConTeXt/convert.tex: ! Incompatible 
> glue units , pointing to the second \convertnumber line.
>
>     \definelabel[XX]%[text=,before=,after=,alternative=inright]
>     \startTEXpage[offset=2em]
>      abc\XX[xx]\par
>      \ref[number][xx] ·
>      \convertnumber{r}{1} ·
>      \convertnumber{R}{\ref[number][xx]}
>     \stopTEXpage
>
> In this case I am trying to display with roman numerals the number 
> generated in the label created through \definelabel.
>
> Suggestions welcomed.
>
> -- 
> Rik
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
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Re: Convertnumber with \ref[number] fails in MkIV, works in LMTX

[Hans Hagen via ntg-context]

On 10/28/2021 4:58 AM, Rik Kabel via ntg-context wrote:
> Following up on my own note, I see that this fails under LMTX if 
> compiled in a clean directory, but succeeds if first compiled with the 
> troublesome line removed, and then, restoring the line, compiled a 
> second time. It also works by placing a .tuc file from an older version 
> of the document into the directory before compiling. Very strange 
> indeed. The expected output, from one of those successful compilations:
> 
> So. I am clearly doing something wrong, but sometimes LMTX is letting me 
> get away with it.
> 
> -- 
> Rik
> 
> On 10/27/2021 21:47, Rik Kabel via ntg-context wrote:
>>
>> Hello list,
>>
>> The following fails with ConTeXt  ver: 2021.10.24 21:45 MKIV but works 
>> with the companion LMTX. The error message is:tex error       > tex 
>> error on line 6 in file G:/TestConTeXt/convert.tex: ! Incompatible 
>> glue units , pointing to the second \convertnumber line.
>>
>>     \definelabel[XX]%[text=,before=,after=,alternative=inright]
>>     \startTEXpage[offset=2em]
>>      abc\XX[xx]\par
>>      \ref[number][xx] ·
>>      \convertnumber{r}{1} ·
>>      \convertnumber{R}{\ref[number][xx]}
>>     \stopTEXpage
>>
>> In this case I am trying to display with roman numerals the number 
>> generated in the label created through \definelabel.
>>
>> Suggestions welcomed.
the conmversion is (partly) done in lua so at some point the

   \ref[number][xx]

gets scanned which is more robust in lmtx than in mkiv

normally one does the conversion differently:

\definelabel[XX][numberconversion=R]
\definelabel[YY][XX][numberconversion=A]

\startTEXpage[offset=2em]
     1: \XX[xx]\par 2: \YY[xx]
\stopTEXpage

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
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Re: Convertnumber with \ref[number] fails in MkIV, works in LMTX

[Rik Kabel via ntg-context]

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On 10/28/2021 02:56, Hans Hagen wrote:
> On 10/28/2021 4:58 AM, Rik Kabel via ntg-context wrote:
>> Following up on my own note, I see that this fails under LMTX if 
>> compiled in a clean directory, but succeeds if first compiled with 
>> the troublesome line removed, and then, restoring the line, compiled 
>> a second time. It also works by placing a .tuc file from an older 
>> version of the document into the directory before compiling. Very 
>> strange indeed. The expected output, from one of those successful 
>> compilations:
>>
>> So. I am clearly doing something wrong, but sometimes LMTX is letting 
>> me get away with it.
>>
>> -- 
>> Rik
>>
>> On 10/27/2021 21:47, Rik Kabel via ntg-context wrote:
>>>
>>> Hello list,
>>>
>>> The following fails with ConTeXt  ver: 2021.10.24 21:45 MKIV but 
>>> works with the companion LMTX. The error message is:tex error       
>>> > tex error on line 6 in file G:/TestConTeXt/convert.tex: ! 
>>> Incompatible glue units , pointing to the second \convertnumber line.
>>>
>>> \definelabel[XX]%[text=,before=,after=,alternative=inright]
>>>     \startTEXpage[offset=2em]
>>>      abc\XX[xx]\par
>>>      \ref[number][xx] ·
>>>      \convertnumber{r}{1} ·
>>>      \convertnumber{R}{\ref[number][xx]}
>>>     \stopTEXpage
>>>
>>> In this case I am trying to display with roman numerals the number 
>>> generated in the label created through \definelabel.
>>>
>>> Suggestions welcomed.
> the conmversion is (partly) done in lua so at some point the
>
>   \ref[number][xx]
>
> gets scanned which is more robust in lmtx than in mkiv
>
> normally one does the conversion differently:
>
> \definelabel[XX][numberconversion=R]
> \definelabel[YY][XX][numberconversion=A]
>
> \startTEXpage[offset=2em]
>     1: \XX[xx]\par 2: \YY[xx]
> \stopTEXpage
>
> Hans
>

(Resending because attachment was too large.)

That generates a new labeled item albeit with a roman numeral label. I 
am trying to get the value of a previously generated numeric label 
converted roman numerals. So, consider that I have a numeric label 
identifying a paragraph of text. I want to reference that label in 
another place but need to do it in Latin.

I want to convert the original label number to a roman numeral for use 
in that one place, not generate a new label displayed as a roman 
numeral. So,

    \definelabel[XX][text=¶]
    \define\Naa{\ref[number][aa]}
    \define[1]\Nnn{\ref[number][#1]}
    \define\Raa{\convertnumber{R}{\ref[number][aa]}}
    \define[1]\Rnn{\convertnumber{R}{\ref[number][#1]}}
    \startTEXpage[offset=2em]
         Paragraph\XX[aa]\par
         Paragraph\XX[bb]\par
         Paragraph\XX[cc]\par
         1: \Naa\par
         2: \Nnn{bb}\par
    % these fail without an existing tuc file:
         I: {\la Vide paragraphum \Raa.}\par
         II: {\la Vide paragraphum \Rnn{bb}.}
    \stopTEXpage

should produce:

    Paragraph *¶ 1
    *Paragraph *¶ 2*
    Paragraph *¶ 3*
    1: 1
    2: 2
    I: Vide paragraphum I.
    II: Vide paragraphum II.

but this fails without an existing good tuc file. If I comment out the 
two latin lines, compile (to failure), and then uncomment the lines and 
try again, it compiles without error. Does this mean that 
\ref[number][label] does not really return a number as \convertnumber 
expects?

This is the case with today's upload as well (ConTeXt  ver: 2021.10.28 
10:19 LMTX).

-- 
Rik

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Re: Convertnumber with \ref[number] fails in MkIV, works in LMTX

[Rik Kabel via ntg-context]

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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

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Re: Convertnumber with \ref[number] fails in MkIV, works in LMTX

[Rik Kabel via ntg-context]

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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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Re: Convertnumber with \ref[number] fails in MkIV, works in LMTX

[Hans Hagen via ntg-context]

On 12/6/2022 9:06 PM, Rik Kabel via ntg-context wrote:
> \definelabel[X][text=]
> \startTEXpage[offset=1cm]
>    \X\X[a]\X[b]\X\par
>    \convertnumber{R}{\ref[number][a]}
>    \convertnumber{G}{\ref[number][b]}
> \stopTEXpage

maybe like this:

\definelabel[X][text=]

\startTEXpage[offset=1cm]
   (\X)
   (\X[a])
   (\X[b])
   (\X)
   \par
   \doifelsereferencefound {a}
     {\convertnumber{number}{\currentreferencenumber}}
     {}
   \par
   \doifelsereferencefound {a}
     {\convertnumber{R}{\currentreferencenumber}}
     {}
   \par
   \doifelsereferencefound {b}
     {\convertnumber{G}{\currentreferencenumber}}
     {}
\stopTEXpage

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------

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Re: Convertnumber with \ref[number] fails in MkIV, works in LMTX

[Rik Kabel via ntg-context]

On 2022-12-06 15:32, Hans Hagen via ntg-context wrote:
> On 12/6/2022 9:06 PM, Rik Kabel via ntg-context wrote:
>> \definelabel[X][text=]
>> \startTEXpage[offset=1cm]
>>    \X\X[a]\X[b]\X\par
>>    \convertnumber{R}{\ref[number][a]}
>>    \convertnumber{G}{\ref[number][b]}
>> \stopTEXpage
>
> maybe like this:
>
> \definelabel[X][text=]
>
> \startTEXpage[offset=1cm]
>   (\X)
>   (\X[a])
>   (\X[b])
>   (\X)
>   \par
>   \doifelsereferencefound {a}
>     {\convertnumber{number}{\currentreferencenumber}}
>     {}
>   \par
>   \doifelsereferencefound {a}
>     {\convertnumber{R}{\currentreferencenumber}}
>     {}
>   \par
>   \doifelsereferencefound {b}
>     {\convertnumber{G}{\currentreferencenumber}}
>     {}
> \stopTEXpage
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>
Perfect! Thank you.

It looks like \currentreference number is initially empty, and when 
\doifelsereferencefound succeeds it is set to that value, and remains 
set to that value until another \doifelsereferencefound is encountered. 
If \doifelsereferencefound fails, \currentreference is again empty. Is 
that correct?

-- 
Rik

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Re: Convertnumber with \ref[number] fails in MkIV, works in LMTX

[Hans Hagen via ntg-context]

On 12/6/2022 10:04 PM, Rik Kabel via ntg-context wrote:
> 
> On 2022-12-06 15:32, Hans Hagen via ntg-context wrote:
>> On 12/6/2022 9:06 PM, Rik Kabel via ntg-context wrote:
>>> \definelabel[X][text=]
>>> \startTEXpage[offset=1cm]
>>>    \X\X[a]\X[b]\X\par
>>>    \convertnumber{R}{\ref[number][a]}
>>>    \convertnumber{G}{\ref[number][b]}
>>> \stopTEXpage
>>
>> maybe like this:
>>
>> \definelabel[X][text=]
>>
>> \startTEXpage[offset=1cm]
>>   (\X)
>>   (\X[a])
>>   (\X[b])
>>   (\X)
>>   \par
>>   \doifelsereferencefound {a}
>>     {\convertnumber{number}{\currentreferencenumber}}
>>     {}
>>   \par
>>   \doifelsereferencefound {a}
>>     {\convertnumber{R}{\currentreferencenumber}}
>>     {}
>>   \par
>>   \doifelsereferencefound {b}
>>     {\convertnumber{G}{\currentreferencenumber}}
>>     {}
>> \stopTEXpage
>>
>> -----------------------------------------------------------------
>>                                           Hans Hagen | PRAGMA ADE
>>
> Perfect! Thank you.
> 
> It looks like \currentreference number is initially empty, and when 
> \doifelsereferencefound succeeds it is set to that value, and remains 
> set to that value until another \doifelsereferencefound is encountered. 
> If \doifelsereferencefound fails, \currentreference is again empty. Is 
> that correct?
yes, btw, there are some more \currentreference* available

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------

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