[NTG-context] Unicode mathematics in ConTeXt

Wolfgang Schuster wolfgang.schuster.lists at gmail.com
Sat May 4 12:32:19 CEST 2019


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 (๐“’) 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.,
> โฟ (U+207F).
>
> 3. New example:
>
> =======
> \setupbodyfont
>     [cambria,12pt]
>     % [pagella,12pt]
>     % [times,12pt]
>
> % \starttext
> \startTEXpage
> \def\ANTI{{^{\rm nt}}}
> \def\ANTIU{{^{\rm โฟแต—}}}
>
> \def\CATCA{$\cal \bf C\ANTI$}
> \def\CATCAU{$๐“’\ANTIU$}
>
> ๐“’ \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:
>
> ๐“’ โฟ
> t
>
> Why does this happen? Is this a bug?
>
> 5. Here is what we want: ๐“’ โฟแต—
>
> 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 at 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
>
>
>
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