Unicode mathematics in ConTeXt

Unicode mathematics in ConTeXt

[Hamid,Idris]

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Dear gang,

I need to convert a document from TeX-style to Unicode mathematics. For  
example:

\starttext
\def\ANTI{{^{\rm nt}}}
\def\CATCA{$\cal \bf C\ANTI$}

\CATCA
\stoptext

Issues:

1. I need calligraphic characters, but the relevant characters in  
latinmodern-math.otf are not encoded in (standard) Unicode. The same goes  
for the tex-gyre-math fonts.

2. What comprehensive unicode-math fonts do you recommend as an  
alternative?

3. In the above example, \cal is used.

4. Other issues may arise, e.g., getting subscripts and superscripts  
correct. How might one rewrite the above with Unicode mathematics in mind?  
Is there a My Way or some other guide to Unicode mathematics in ConTeXt?

This writer has never had to think about this matter before so this is all  
new ground to learn. Thank you in advance for any guidance.

Best wishes
Idris
-- 
Idris Samawi Hamid, Professor
Department of Philosophy
Colorado State University
Fort Collins, CO 80512

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Re: Unicode mathematics in ConTeXt

[Hamid,Idris]

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Dear gang,

Ok, I've made some progress:

1. tex-gyre etc. *do* support Unicode mathematics, but the version of  
ConTeXt I was using had produced the wrong encoding in the pdf output. For  
example, U+1D4D2 (𝓒) in the input was being mapped to U+2D4D2 in the  
output.

Updating to the latest beta appears to have fixed this issue.

2. tex-gyre etc. appears to be missing some superscript characters, e.g.,  
ⁿ (U+207F).

3. New example:

=======
\setupbodyfont
   [cambria,12pt]
   % [pagella,12pt]
   % [times,12pt]

% \starttext
\startTEXpage
\def\ANTI{{^{\rm nt}}}
\def\ANTIU{{^{\rm ⁿᵗ}}}

\def\CATCA{$\cal \bf C\ANTI$}
\def\CATCAU{$𝓒\ANTIU$}

𝓒 \CATCA \CATCAU
\stopTEXpage
% \stoptext
=======

\CATCAU and \ANTIU use Unicode characters and superscripts directly,  
instead of the old TeX method.

4. Issues. In the pdf output of \CATCAU:
i)   Why does ConTeXt make the second superscript larger than the first?
ii)  If one copies the text of the pdf output to an editor - even this  
email client - the second superscript moves to a new line:

𝓒 ⁿ
t

Why does this happen? Is this a bug?

5. Here is what we want: 𝓒 ⁿᵗ

What is the proper or best way to get a character-superscript combination  
in ConTeXt whose output can be copied and pasted to an editor and give the  
correct result? What am I missing?

Thank you in advance.

Best wishes
Idris

On Wed, 01 May 2019 14:58:06 -0600, Hamid,Idris  
<Idris.Hamid@colostate.edu> wrote:

> Dear gang,
>
> I need to convert a document from TeX-style to Unicode mathematics. For
> example:
>
> \starttext
> \def\ANTI{{^{\rm nt}}}
> \def\CATCA{$\cal \bf C\ANTI$}
>
> \CATCA
> \stoptext
>
> Issues:
>
> 1. I need calligraphic characters, but the relevant characters in
> latinmodern-math.otf are not encoded in (standard) Unicode. The same goes
> for the tex-gyre-math fonts.
>
> 2. What comprehensive unicode-math fonts do you recommend as an
> alternative?
>
> 3. In the above example, \cal is used.
>
> 4. Other issues may arise, e.g., getting subscripts and superscripts
> correct. How might one rewrite the above with Unicode mathematics in  
> mind?
> Is there a My Way or some other guide to Unicode mathematics in ConTeXt?
>
> This writer has never had to think about this matter before so this is  
> all
> new ground to learn. Thank you in advance for any guidance.
>
> Best wishes
> Idris


-- 
Idris Samawi Hamid, Professor
Department of Philosophy
Colorado State University
Fort Collins, CO 80512

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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

Re: Unicode mathematics in ConTeXt

[Wolfgang Schuster]

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Hi Idris,

please read this: https://www.w3.org/TR/unicode-xml/#Superscripts

Wolfgang


Hamid,Idris schrieb am 03.05.2019 um 21:40:
> Dear gang,
>
> Ok, I've made some progress:
>
> 1. tex-gyre etc. *do* support Unicode mathematics, but the version of
> ConTeXt I was using had produced the wrong encoding in the pdf output. For
> example, U+1D4D2 (𝓒) in the input was being mapped to U+2D4D2 in the
> output.
>
> Updating to the latest beta appears to have fixed this issue.
>
> 2. tex-gyre etc. appears to be missing some superscript characters, e.g.,
> ⁿ (U+207F).
>
> 3. New example:
>
> =======
> \setupbodyfont
>     [cambria,12pt]
>     % [pagella,12pt]
>     % [times,12pt]
>
> % \starttext
> \startTEXpage
> \def\ANTI{{^{\rm nt}}}
> \def\ANTIU{{^{\rm ⁿᵗ}}}
>
> \def\CATCA{$\cal \bf C\ANTI$}
> \def\CATCAU{$𝓒\ANTIU$}
>
> 𝓒 \CATCA \CATCAU
> \stopTEXpage
> % \stoptext
> =======
>
> \CATCAU and \ANTIU use Unicode characters and superscripts directly,
> instead of the old TeX method.
>
> 4. Issues. In the pdf output of \CATCAU:
> i)   Why does ConTeXt make the second superscript larger than the first?
> ii)  If one copies the text of the pdf output to an editor - even this
> email client - the second superscript moves to a new line:
>
> 𝓒 ⁿ
> t
>
> Why does this happen? Is this a bug?
>
> 5. Here is what we want: 𝓒 ⁿᵗ
>
> What is the proper or best way to get a character-superscript combination
> in ConTeXt whose output can be copied and pasted to an editor and give the
> correct result? What am I missing?
>
> Thank you in advance.
>
> Best wishes
> Idris
>
> On Wed, 01 May 2019 14:58:06 -0600, Hamid,Idris
> <Idris.Hamid@colostate.edu> wrote:
>
>> Dear gang,
>>
>> I need to convert a document from TeX-style to Unicode mathematics. For
>> example:
>>
>> \starttext
>> \def\ANTI{{^{\rm nt}}}
>> \def\CATCA{$\cal \bf C\ANTI$}
>>
>> \CATCA
>> \stoptext
>>
>> Issues:
>>
>> 1. I need calligraphic characters, but the relevant characters in
>> latinmodern-math.otf are not encoded in (standard) Unicode. The same goes
>> for the tex-gyre-math fonts.
>>
>> 2. What comprehensive unicode-math fonts do you recommend as an
>> alternative?
>>
>> 3. In the above example, \cal is used.
>>
>> 4. Other issues may arise, e.g., getting subscripts and superscripts
>> correct. How might one rewrite the above with Unicode mathematics in
>> mind?
>> Is there a My Way or some other guide to Unicode mathematics in ConTeXt?
>>
>> This writer has never had to think about this matter before so this is
>> all
>> new ground to learn. Thank you in advance for any guidance.
>>
>> Best wishes
>> Idris
>
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________


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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Unicode mathematics in ConTeXt

[Hamid,Idris]

On Sat, 04 May 2019 04:32:19 -0600, Wolfgang Schuster
<wolfgang.schuster.lists@gmail.com> wrote:

> Hi Idris,
>
> please read this: https://www.w3.org/TR/unicode-xml/#Superscripts

Many thanks. The issue is clearer now, e.g.,

=======
When used in mathematical context (MathML) it is recommended to
consistently use style markup for superscripts and subscripts. This is
because mathematical layout allows not just individual symbols, but entire
expressions to be superscripted or subscripted in a regular, nested manner.
=======

Of course, consistent use of style markup means that we can't naively
extract superscript text from the pdf, e.g., \CATCA becomes 𝓒nt.

OTOH, issues 4.i and 4.ii below are still perplexing. Are there any
workarounds?

Thanks again.

Best wishes
Idris

> Hamid,Idris schrieb am 03.05.2019 um 21:40:
>> Dear gang,
>>
>> Ok, I've made some progress:
>>
>> 1. tex-gyre etc. *do* support Unicode mathematics, but the version of
>> ConTeXt I was using had produced the wrong encoding in the pdf output.  
>> For
>> example, U+1D4D2 (𝓒) in the input was being mapped to U+2D4D2 in the
>> output.
>>
>> Updating to the latest beta appears to have fixed this issue.
>>
>> 2. tex-gyre etc. appears to be missing some superscript characters,  
>> e.g.,
>> ⁿ (U+207F).
>>
>> 3. New example:
>>
>> =======
>> \setupbodyfont
>>     [cambria,12pt]
>>     % [pagella,12pt]
>>     % [times,12pt]
>>
>> % \starttext
>> \startTEXpage
>> \def\ANTI{{^{\rm nt}}}
>> \def\ANTIU{{^{\rm ⁿᵗ}}}
>>
>> \def\CATCA{$\cal \bf C\ANTI$}
>> \def\CATCAU{$𝓒\ANTIU$}
>>
>> 𝓒 \CATCA \CATCAU
>> \stopTEXpage
>> % \stoptext
>> =======
>>
>> \CATCAU and \ANTIU use Unicode characters and superscripts directly,
>> instead of the old TeX method.
>>
>> 4. Issues. In the pdf output of \CATCAU:
>> i)   Why does ConTeXt make the second superscript larger than the first?
>> ii)  If one copies the text of the pdf output to an editor - even this
>> email client - the second superscript moves to a new line:
>>
>> 𝓒 ⁿ
>> t
>>
>> Why does this happen? Is this a bug?
>>
>> 5. Here is what we want: 𝓒 ⁿᵗ
>>
>> What is the proper or best way to get a character-superscript  
>> combination
>> in ConTeXt whose output can be copied and pasted to an editor and give  
>> the
>> correct result? What am I missing?
>>
>> Thank you in advance.
>>
>> Best wishes
>> Idris
>>
>> On Wed, 01 May 2019 14:58:06 -0600, Hamid,Idris
>> <Idris.Hamid@colostate.edu> wrote:
>>
>>> Dear gang,
>>>
>>> I need to convert a document from TeX-style to Unicode mathematics. For
>>> example:
>>>
>>> \starttext
>>> \def\ANTI{{^{\rm nt}}}
>>> \def\CATCA{$\cal \bf C\ANTI$}
>>>
>>> \CATCA
>>> \stoptext
>>>
>>> Issues:
>>>
>>> 1. I need calligraphic characters, but the relevant characters in
>>> latinmodern-math.otf are not encoded in (standard) Unicode. The same  
>>> goes
>>> for the tex-gyre-math fonts.
>>>
>>> 2. What comprehensive unicode-math fonts do you recommend as an
>>> alternative?
>>>
>>> 3. In the above example, \cal is used.
>>>
>>> 4. Other issues may arise, e.g., getting subscripts and superscripts
>>> correct. How might one rewrite the above with Unicode mathematics in
>>> mind?
>>> Is there a My Way or some other guide to Unicode mathematics in  
>>> ConTeXt?
>>>
>>> This writer has never had to think about this matter before so this is
>>> all
>>> new ground to learn. Thank you in advance for any guidance.
>>>
>>> Best wishes
>>> Idris
-- 
Idris Samawi Hamid, Professor
Department of Philosophy
Colorado State University
Fort Collins, CO 80512
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________