%% This is part of OpTeX project, see http://petr.olsak.net/optex \_codedecl \loadmath {Unicode Math fonts <2020-02-14>} \_newifi \_ifmathloading \_mathloadingtrue \_def\_noloadmath{\_mathloadingfalse} \_def\_doloadmath{\_mathloadingtrue} \_def\_loadmath#1{% \_ifmathloading \_initunifonts \_isfont"#1"\_iffalse \_opwarning{Math font "#1" not found, skipped...}% \_else \_def\_unimathfont{#1}% \_def\_normalmath{% \_loadumathfamily 1 {\_unimathfont}{} % Base font \_loadmathfamily 4 rsfs % script \_setmathdimens }% \_let\_boldmath=\_normalmath \_addto\_boldmath{\_pdfliteral direct {2 Tr .3 w}\_aftergroup\_noboldmath}% \_def\_noboldmath{\_pdfliteral direct {0 Tr 0 w}}% faked bold only :-( \_normalmath \_wterm {MATH-FONT: "#1" -- unicode math prepared.}% \_setctable\_optexcatcodes \_input unimath-codes.opm \_restorectable \_mathloadingfalse \_fi\_fi} \_def\_loadboldmath#1#2\to #3{% \_def\_tmp{#3}\_ifx\_unimathfont\_tmp % do work only if #3 is loaded as normal Math \_isfont"#1"\_iffalse \_opwarning{Bold-Math font "#1" not found, skipped...} \_else \_def\_unimathboldfont{#1}% \_def\_boldmath{% \_loadumathfamily 1 {\_unimathboldfont}{} % Base font \_loadmathfamily 4 rsfs % script \_setmathdimens }% \_wterm {MATH-FONT: "#1" -- unicode math bold prepared.}% \_fi\_fi} \_def\_umathname#1#2{"#1:\_mfontfeatures#2"} \_def\_mfontfeatures{mode=base;script=math;} \_def\_loadumathfamily #1 #2#3 {% \_edef\_optsizesave{\_the\_optsize}% \_optsize=\_sizemtext \_font\_mF=\_umathname{#2}{#3} at\_optsize \_textfont#1=\_mF \_ifnum#1=1 \_textfont2=\_mF \_textfont3=\_mF \_fi \_optsize=\_sizemscript \_font\_mF=\_umathname{#2}{+ssty=0;#3} at\_optsize \_scriptfont#1=\_mF \_ifnum#1=1 \_scriptfont2=\_mF \_scriptfont3=\_mF \_fi \_optsize=\_sizemsscript \_font\_mF=\_umathname{#2}{+ssty=1;#3} at\_optsize \_scriptscriptfont#1=\_mF \_ifnum#1=1 \_scriptscriptfont2=\_mF \_scriptscriptfont3=\_mF \_fi \_optsize=\_optsizesave \_relax } \_newcount\umathnumA \_newcount\umathnumB \def\umathcorr#1#2{\expandafter#1\expandafter{\the#2}} \def\umathprepare#1{\def\umathscanholes##1[#1]##2##3\relax{##2}} \def\umathvalue#1{\expandafter\umathscanholes\umathcharholes[#1]{#1}\relax} \def\umathcharholes{% holes in math alphabets: [119893]{"210E}[119965]{"212C}[119968]{"2130}[119969]{"2131}% [119971]{"210B}[119972]{"2110}[119975]{"2112}[119976]{"2133}[119981]{"211B}% [119994]{"212F}[119996]{"210A}[120004]{"2134}% [120070]{"212D}[120075]{"210C}[120076]{"2111}[120085]{"211C}[120093]{"2128}% [120122]{"2102}[120127]{"210D}[120133]{"2115}[120135]{"2119} [120136]{"211A}[120137]{"211D}[120145]{"2124}% } \def\umathrange#1#2{\umathnumB=#2\relax \umathrangeA#1} \def\umathrangeA#1-#2{\umathnumA=`#1\relax \loop \umathcorr\umathprepare\umathnumB \Umathcode \umathnumA = 7 1 \umathcorr\umathvalue{\umathnumB} \ifnum\umathnumA<`#2\relax \advance\umathnumA by1 \advance\umathnumB by1 \repeat } \def\umathrangeGREEK{\begingroup \lccode`A="0391 \lccode`Z="03A9 \lowercase{\endgroup\umathrange{A-Z}}} \def\umathrangegreek{\begingroup \lccode`A="03B1 \lccode`Z="03D6 \lowercase{\endgroup\umathrange{A-Z}}} \def\greekdef#1{\ifx#1\relax \else \begingroup \lccode`X=\umathnumB \lowercase{\endgroup \def#1{X}}% \advance\umathnumB by 1 \expandafter\greekdef \fi } \_public \loadmath \loadboldmath \noloadmath \doloadmath ; \_endcode -------------------------------------------- The `\loadmath` macro loads math fonts and sets math-codes using \input unimath-codes.opm. If UnicodeMath font is loaded then `\_mathloadingfalse` is set, so new UnicodeMath font isn't loaded until `\domathload` is used. `\loadadboldmath{} \to {}` loads bold variant only if was sucessully loaded. For example: \begtt \loadmath {[xitsmath-regular]} \loadboldmath {[xitsmath-bold]} \to {[xitsmath-regular]} \endtt You can combine more fonts, if you register them to another math families (5, 6, 7, etc.) in \normalmath macro. The default value of \normalmath shows a combination of base Unicode Math font with 8bit Math font at family 4. See definition of \script macro where \fam4 is used. Of course, we need to set \rmvariables too, because 8bit font accepts only codes less than 255. See http://tex.stackexchange.com/questions/308749/ for more technical details. The poor bold is used for complete bold vaiant of the font. If the selected font has its bold vaiant (like xits-math), you can re-define \boldmath macro by: \def\boldmath{% \loadumathfamily 1 {[xitsmath-bold]}{} % Base font \loadmathfamily 4 rsfs % script \setmathdimens } XITSmath-bold needs correction: the norm symbol ||x|| is missing here. So, you can define: \def\boldmath{% \loadumathfamily 1 {[xitsmath-bold]}{} % Base font \loadmathfamily 4 rsfs % script \loadumathfamily 5 {[xitsmath-regular]}{} \def\|{\Udelimiter 0 5 "02016 }% % norm delimiter from family 5 \setmathdimens } -------------------- \loadmath{[XITSMath-Regular]} ... XITS MATH^^J \loadmath{[latinmodern-math]} ... Latin Modern Math^^J \loadmath{[texgyretermes-math]} ... TeXGyre Termes Math^^J \loadmath{[texgyrebonum-math]} ... TeXGyre Bonum Math^^J \loadmath{[texgyrepagella-math]} ... TeXGyre Pagella Math^^J \loadmath{[texgyreschola-math]} ... TeXGyre Schola Math^^J \loadmath{[texgyredejavu-math]} ... TeXGyre DeJaVu Math^^J \loadmath{[LibertinusMath-Regular]} ... Libertinus Math^^J \loadmath{[FiraMath-Regular]} ... Fira Math^^J \loadmath{[Asana-Math]} ... Asana Math^^J