-------- Forwarded Message -------- Subject: Re: [NTG-context] Using legacy math fonts Date: Wed, 9 Aug 2017 10:52:34 +0200 From: Hans Hagen To: Henri On 8/9/2017 7:01 AM, Henri wrote:

Furthermore the example only works in TeXlive 2017 but not in beta. What has changed and how do I make it work again?

I'm surprised that it worked because we do math deep down in a different way than you (probably) assume. Anyway, your definitions are not ok as they refer to the wrong family. Also, you need to refer to the lm fonts as these are the cm replacements. % Load CM calligraphic \font\tensy =lmsy10 at \mathstyleface\textstyle \font\sevensy=lmsy7 at \mathstyleface\scriptstyle \font\fivesy =lmsy5 at \mathstyleface\scriptscriptstyle % Allocate family \newfam\cmcalfam % Assign font families \textfont \cmcalfam=\tensy \scriptfont \cmcalfam=\sevensy \scriptscriptfont\cmcalfam=\fivesy \newtoks\cmcalmathcodes \cmcalmathcodes{% \Umathcode`A=\zerocount\cmcalfam`A% \Umathcode`B=\zerocount\cmcalfam`B% \Umathcode`C=\zerocount\cmcalfam`C% \Umathcode`D=\zerocount\cmcalfam`D% \Umathcode`E=\zerocount\cmcalfam`E% \Umathcode`F=\zerocount\cmcalfam`F% \Umathcode`G=\zerocount\cmcalfam`G% \Umathcode`H=\zerocount\cmcalfam`H% \Umathcode`I=\zerocount\cmcalfam`I% \Umathcode`J=\zerocount\cmcalfam`J% \Umathcode`K=\zerocount\cmcalfam`K% \Umathcode`L=\zerocount\cmcalfam`L% \Umathcode`M=\zerocount\cmcalfam`M% \Umathcode`N=\zerocount\cmcalfam`N% \Umathcode`O=\zerocount\cmcalfam`O% \Umathcode`P=\zerocount\cmcalfam`P% \Umathcode`Q=\zerocount\cmcalfam`Q% \Umathcode`R=\zerocount\cmcalfam`R% \Umathcode`S=\zerocount\cmcalfam`S% \Umathcode`T=\zerocount\cmcalfam`T% \Umathcode`U=\zerocount\cmcalfam`U% \Umathcode`V=\zerocount\cmcalfam`V% \Umathcode`W=\zerocount\cmcalfam`W% \Umathcode`X=\zerocount\cmcalfam`X% \Umathcode`Y=\zerocount\cmcalfam`Y% \Umathcode`Z=\zerocount\cmcalfam`Z% } % Make a macro wrapper \showglyphs \unexpanded\def\cmcal#1{{\fam\cmcalfam\the\cmcalmathcodes#1}} \starttext [$\mathcal{TUVA}$] [$\cmcal {TUVA}$] \stoptext These old fonts with glyph widths that cheat assume an old math engine (with respect to kerning and italics which are fundamentally different in opentype math) so there you need to compensate yourself. It's proabbly easier to use the math font fallback mechanism and map that range to some other math font. Hans

On Wed, 2017-08-09 at 17:00 +1200, Henri wrote:

...

Dear list,

Because I don't like that Euler calligraphic script provided by Latin Modern Math, I want to revert to Computer Modern for the uppercase calligraphic letters. I got so far, that the command will produce the correct glyphs, however, the kerning is borken. What did I miss?

Cheers, Henri

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% Allocate tokens for legacy math codes \newtoks\legacymathcodes\legacymathcodes={ \Umathcode`A="7"1"41 \Umathcode`B="7"1"42 \Umathcode`C="7"1"43 \Umathcode`D="7"1"44 \Umathcode`E="7"1"45 \Umathcode`F="7"1"46 \Umathcode`G="7"1"47 \Umathcode`H="7"1"48 \Umathcode`I="7"1"49 \Umathcode`J="7"1"4A \Umathcode`K="7"1"4B \Umathcode`L="7"1"4C \Umathcode`M="7"1"4D \Umathcode`N="7"1"4E \Umathcode`O="7"1"4F \Umathcode`P="7"1"50 \Umathcode`Q="7"1"51 \Umathcode`R="7"1"52 \Umathcode`S="7"1"53 \Umathcode`T="7"1"54 \Umathcode`U="7"1"55 \Umathcode`V="7"1"56 \Umathcode`W="7"1"57 \Umathcode`X="7"1"58 \Umathcode`Y="7"1"59 \Umathcode`Z="7"1"5A }

% Load CM calligraphic \font\tensy =cmsy10 at \mathstyleface\textstyle \font\sevensy=cmsy7 at \mathstyleface\scriptstyle \font\fivesy =cmsy5 at \mathstyleface\scriptscriptstyle

% Allocate family \newfam\cmcalfam

% Assign font families \textfont \cmcalfam=\tensy \scriptfont \cmcalfam=\sevensy \scriptscriptfont\cmcalfam=\fivesy

% Make a macro wrapper \unexpanded\def\cmcal#1{{\fam\cmcalfam\the\legacymathcodes#1}}

\starttext

$\mathcal{TUV}$

$\cmcal{TUV}$

\stoptext

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