morbusg/Unicode math in plain TeX

## Unicode math in plain TeX
\Umathcharnumdef\aleph="2135 \Umathcharnumdef\hbar="210F
\Umathcharnumdef\imath="1D6A4 \Umathcharnumdef\jmath="1D6A5
\Umathcharnumdef\ell="2113 \Umathcharnumdef\wp="2118 \Umathcharnumdef\Re="211C
\Umathcharnumdef\Im="2111 \Umathcharnumdef\infty="221E
\Umathcharnumdef\prime="2032 \Umathcharnumdef\emptyset="2205
\Umathcharnumdef\surd="221A \Umathcharnumdef\top="22A4
\Umathcharnumdef\bot="22A5 \Umathcharnumdef\|="2016
\Umathcharnumdef\angle="2220 \Umathcharnumdef\triangle="2206
\Umathcharnumdef\backslash="005C \Umathcharnumdef\forall="2200
\Umathcharnumdef\exists="2203 \Umathcharnumdef\neg="00AC
\Umathcharnumdef\flat="266D \Umathcharnumdef\natural="266E
\Umathcharnumdef\sharp="266F \Umathcharnumdef\clubsuit="2663
\Umathcharnumdef\diamondsuit="2662 \Umathcharnumdef\heartsuit="2661
\Umathcharnumdef\spadesuit="2660 \Umathchardef\sum="1"0"2211
\Umathchardef\prod="1"0"220F \Umathchardef\coprod="1"0"2210
\Umathchardef\int="1"0"222B \Umathchardef\oint="1"0"222E
\Umathchardef\bigcap="1"0"22C2 \Umathchardef\bigcup="1"0"22C3
\Umathchardef\bigsqcup="1"0"2A06 \Umathchardef\bigvee="1"0"22C1
\Umathchardef\bigwedge="1"0"22C0 \Umathchardef\bigodot="1"0"2A00
\Umathchardef\bigotimes="1"0"2A02 \Umathchardef\bigoplus="1"0"2A01
\Umathchardef\biguplus="1"0"2A04 \Umathchardef\pm="2"0"00B1
\Umathchardef\mp="2"0"2213 \Umathchardef\setminus="2"0"005C
\Umathchardef\cdot="2"0"22C5 \Umathchardef\times="2"0"00D7
\Umathchardef\rtimes="2"0"22CA
\Umathchardef\ast="2"0"2217 \Umathchardef\star="2"0"22C6
\Umathchardef\diamond="2"0"22C4 \Umathchardef\circ="2"0"2218
\Umathchardef\bullet="2"0"2219 \Umathchardef\div="2"0"00F7
\Umathchardef\cap="2"0"2229 \Umathchardef\cup="2"0"222A
\Umathchardef\uplus="2"0"228E \Umathchardef\sqcap="2"0"2293
\Umathchardef\sqcup="2"0"2294 \Umathchardef\wr="2"0"2240
\Umathchardef\bigcirc="2"0"25EF
\Umathchardef\vee="2"0"2228 \let\lor=\vee
\Umathchardef\wedge="2"0"2227 \let\land=\wedge
\Umathchardef\oplus="2"0"2295 \Umathchardef\ominus="2"0"2296
\Umathchardef\otimes="2"0"2297
\Umathchardef\oslash="2"0"2298 \Umathchardef\odot="2"0"2299
\Umathchardef\dagger="2"0"2020 \Umathchardef\ddagger="2"0"2021
\Umathchardef\amalg="2"0"2A3F \Umathchardef\bigtriangledown="2"0"25BD
\Umathchardef\triangleleft="2"0"22B2 \Umathchardef\triangleright="2"0"22B3
\Umathchardef\bigtriangleup="2"0"25B3
\Umathchardef\neq="3"0"2260 \Umathchardef\leq="3"0"2264
\Umathchardef\geq="3"0"2265 \Umathchardef\equiv="3"0"2261 % 2263?
\Umathchardef\prec="3"0"227A \Umathchardef\succ="3"0"227B
\Umathchardef\sim="3"0"223C \Umathchardef\preceq="3"0"227C
\Umathchardef\succeq="3"0"227D \Umathchardef\simeq="3"0"2243
\Umathchardef\ll="3"0"226A \Umathchardef\gg="3"0"226B
\Umathchardef\asymp="3"0"224D \Umathchardef\subset="3"0"2282
\Umathchardef\supset="3"0"2283 \Umathchardef\approx="3"0"2248
\Umathchardef\subseteq="3"0"2286 \Umathchardef\supseteq="3"0"2287
\Umathchardef\cong="3"0"2245 \Umathchardef\sqsubseteq="3"0"2291
\Umathchardef\sqsupseteq="3"0"2292 \Umathchardef\bowtie="3"0"22C8
\Umathchardef\in="3"0"2208 \Umathchardef\notin="3"0"2209
\Umathchardef\ni="3"0"220B \Umathchardef\vdash="3"0"22A2
\Umathchardef\dashv="3"0"22A3 \Umathchardef\models="3"0"22A8
\Umathchardef\nmodels="3"0"22AE
\Umathchardef\smile="3"0"2323 \Umathchardef\mid="3"0"2223
\Umathchardef\doteq="3"0"2250 \Umathchardef\frown="3"0"2322
\Umathchardef\parallet="3"0"2225 \Umathchardef\perp="3"0"27C2
\Umathchardef\leftarrow="3"0"2190 \Umathchardef\longleftarrow="3"0"27F5
\Umathchardef\Leftarrow="3"0"21D0 \Umathchardef\Longleftarrow="3"0"27F8
\Umathchardef\rightarrow="3"0"2192 \Umathchardef\longrightarrow="3"0"27F6
\Umathchardef\Rightarrow="3"0"21D2 \Umathchardef\Longrightarrow="3"0"27F9
\Umathchardef\leftrightarrow="3"0"2194
\Umathchardef\longleftrightarrow="3"0"27F7
\Umathchardef\Leftrightarrow="3"0"21D4
\Umathchardef\Longleftrightarrow="3"0"27FA \Umathchardef\mapsto="3"0"21A6
\Umathchardef\longmapsto="3"0"27FC \Umathchardef\hookleftarrow="3"0"21A9
\Umathchardef\hookrightarrow="3"0"21AA \Umathchardef\uparrow="3"0"2191
\Umathchardef\Uparrow="3"0"21D1 \Umathchardef\downarrow="3"0"2193
\Umathchardef\Downarrow="3"0"21D3 \Umathchardef\updownarrow="3"0"2195
\Umathchardef\Updownarrow="3"0"21D5 \Umathchardef\nearrow="3"0"2197
\Umathchardef\searrow="3"0"2198 \Umathchardef\nwarrow="3"0"2196
\Umathchardef\swarrow="3"0"2199
\def\hat{\Umathaccent"7"0"2C6 } \def\widehat{\Umathaccent"7"0"0302 }
\def\check{\Umathaccent"7"0"2C7 } \def\widecheck{\Umathaccent"7"0"030C }
\def\tilde{\Umathaccent"7"0"2DC } \def\widetilde{\Umathaccent"7"0"0303 }
\def\acute{\Umathaccent"7"0"0301 } % 02CA
\def\grave{\Umathaccent"7"0"0300 } % 02CB
\def\dot{\Umathaccent"7"0"0307 } % 02D9
\def\ddot{\Umathaccent"7"0"0308 }
\def\breve{\Umathaccent"7"0"2D8 } \def\widebreve{\Umathaccent"7"0"0306 }
\def\bar{\Umathaccent"7"0"2C9 } \def\widebar{\Umathaccent"7"0"0305 }
\def\vec{\Umathaccent"7"0"20D7 }

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\Umathcodenum`G="0047 \Umathcodenum`H="0048 \Umathcodenum`I="0049
\Umathcodenum`J="004A \Umathcodenum`K="004B \Umathcodenum`L="004C
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\Umathcodenum`S="0053 \Umathcodenum`T="0054 \Umathcodenum`U="0055
\Umathcodenum`V="0056 \Umathcodenum`W="0057 \Umathcodenum`X="0058
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\Umathcodenum`z="007A
\Umathcodenum`0="30 \Umathcodenum`1="31 \Umathcodenum`2="32
\Umathcodenum`3="33 \Umathcodenum`4="34 \Umathcodenum`5="35
\Umathcodenum`6="36 \Umathcodenum`7="37 \Umathcodenum`8="38
\Umathcodenum`9="39
\Umathcharnumdef\Alpha="0391   \Umathcharnumdef\Beta="0392
\Umathcharnumdef\Gamma="0393   \Umathcharnumdef\Delta="0394
\Umathcharnumdef\Epsilon="0395 \Umathcharnumdef\Zeta="0396
\Umathcharnumdef\Eta="0397     \Umathcharnumdef\varTheta="0398
\Umathcharnumdef\Iota="0399    \Umathcharnumdef\Kappa="039A
\Umathcharnumdef\Lambda="039B  \Umathcharnumdef\Mu="039C
\Umathcharnumdef\Nu="039D      \Umathcharnumdef\Xi="039E
\Umathcharnumdef\Omicron="039F \Umathcharnumdef\Pi="03A0
\Umathcharnumdef\Rho="03A1     \Umathcharnumdef\Theta="03F4
\Umathcharnumdef\Sigma="03A3   \Umathcharnumdef\Tau="03A4
\Umathcharnumdef\Upsilon="03A5 \Umathcharnumdef\Phi="03A6
\Umathcharnumdef\Chi="03A7     \Umathcharnumdef\Psi="03A8
\Umathcharnumdef\Omega="03A9   \Umathcharnumdef\nabla="2207
\Umathcharnumdef\alpha="03B1      \Umathcharnumdef\beta="03B2
\Umathcharnumdef\gamma="03B3      \Umathcharnumdef\delta="03B4
\Umathcharnumdef\epsilon="03B5    \Umathcharnumdef\zeta="03B6
\Umathcharnumdef\eta="03B7        \Umathcharnumdef\theta="03B8
\Umathcharnumdef\iota="03B9       \Umathcharnumdef\kappa="03BA
\Umathcharnumdef\lambda="03BB     \Umathcharnumdef\mu="03BC
\Umathcharnumdef\nu="03BD         \Umathcharnumdef\xi="03BE
\Umathcharnumdef\omicron="03BF    \Umathcharnumdef\pi="03C0
\Umathcharnumdef\rho="03C1        \Umathcharnumdef\varsigma="03C2
\Umathcharnumdef\sigma="03C3      \Umathcharnumdef\tau="03C4
\Umathcharnumdef\upsilon="03C5    \Umathcharnumdef\varphi="03C6
\Umathcharnumdef\chi="03C7        \Umathcharnumdef\psi="03C8
\Umathcharnumdef\omega="03C9      \Umathcharnumdef\partial="2202
\Umathcharnumdef\varepsilon="03F5 \Umathcharnumdef\vartheta="03D1
\Umathcharnumdef\varkappa="03F0   \Umathcharnumdef\phi="03D5
\Umathcharnumdef\varrho="03F1     \Umathcharnumdef\varpi="03D6 }

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\Umathcodenum`e="1D452 \Umathcodenum`f="1D453 \Umathcodenum`g="1D454
\Umathcodenum`h="210E  \Umathcodenum`i="1D456 \Umathcodenum`j="1D457
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\Umathcodenum`Φ="1D6F7 \Umathcodenum`Χ="1D6F8 \Umathcodenum`Ψ="1D6F9
\Umathcodenum`Ω="1D6FA \Umathcodenum`∇="1D6FB \Umathcodenum`α="1D6FC
\Umathcodenum`β="1D6FD \Umathcodenum`γ="1D6FE \Umathcodenum`δ="1D6FF
\Umathcodenum`ε="1D700 \Umathcodenum`ζ="1D701 \Umathcodenum`η="1D702
\Umathcodenum`θ="1D703 \Umathcodenum`ι="1D704 \Umathcodenum`κ="1D705
\Umathcodenum`λ="1D706 \Umathcodenum`μ="1D707 \Umathcodenum`ν="1D708
\Umathcodenum`ξ="1D709 \Umathcodenum`ο="1D70A \Umathcodenum`π="1D70B
\Umathcodenum`ρ="1D70C \Umathcodenum`ς="1D70D \Umathcodenum`σ="1D70E
\Umathcodenum`τ="1D70F \Umathcodenum`υ="1D710 \Umathcodenum`φ="1D711
\Umathcodenum`χ="1D712 \Umathcodenum`ψ="1D713 \Umathcodenum`ω="1D714
\Umathcodenum`∂="1D715 \Umathcodenum`ϵ="1D716 \Umathcodenum`ϑ="1D717
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\Umathcodenum`ϖ="1D71B
\Umathcodenum`0="30 \Umathcodenum`1="31 \Umathcodenum`2="32
\Umathcodenum`3="33 \Umathcodenum`4="34 \Umathcodenum`5="35
\Umathcodenum`6="36 \Umathcodenum`7="37 \Umathcodenum`8="38
\Umathcodenum`9="39
\Umathcharnumdef\Alpha="1D6E2   \Umathcharnumdef\Beta="1D6E3
\Umathcharnumdef\Gamma="1D6E4   \Umathcharnumdef\Delta="1D6E5
\Umathcharnumdef\Epsilon="1D6E6 \Umathcharnumdef\Zeta="1D6E7
\Umathcharnumdef\Eta="1D6E8     \Umathcharnumdef\varTheta="1D6E9
\Umathcharnumdef\Iota="1D6EA    \Umathcharnumdef\Kappa="1D6EB
\Umathcharnumdef\Lambda="1D6EC  \Umathcharnumdef\Mu="1D6ED
\Umathcharnumdef\Nu="1D6EE      \Umathcharnumdef\Xi="1D6EF
\Umathcharnumdef\Omicron="1D6F0 \Umathcharnumdef\Pi="1D6F1
\Umathcharnumdef\Rho="1D6F2     \Umathcharnumdef\Theta="1D6F3
\Umathcharnumdef\Sigma="1D6F4   \Umathcharnumdef\Tau="1D6F5
\Umathcharnumdef\Upsilon="1D6F6 \Umathcharnumdef\Phi="1D6F7
\Umathcharnumdef\Chi="1D6F8     \Umathcharnumdef\Psi="1D6F9
\Umathcharnumdef\Omega="1D6FA   \Umathcharnumdef\nabla="1D6FB
\Umathcharnumdef\alpha="1D6FC      \Umathcharnumdef\beta="1D6FD
\Umathcharnumdef\gamma="1D6FE      \Umathcharnumdef\delta="1D6FF
\Umathcharnumdef\epsilon="1D700    \Umathcharnumdef\zeta="1D701
\Umathcharnumdef\eta="1D702        \Umathcharnumdef\theta="1D703
\Umathcharnumdef\iota="1D704       \Umathcharnumdef\kappa="1D705
\Umathcharnumdef\lambda="1D706     \Umathcharnumdef\mu="1D707
\Umathcharnumdef\nu="1D708         \Umathcharnumdef\xi="1D709
\Umathcharnumdef\omicron="1D70A    \Umathcharnumdef\pi="1D70B
\Umathcharnumdef\rho="1D70C        \Umathcharnumdef\varsigma="1D70D
\Umathcharnumdef\sigma="1D70E      \Umathcharnumdef\tau="1D70F
\Umathcharnumdef\upsilon="1D710    \Umathcharnumdef\varphi="1D711
\Umathcharnumdef\chi="1D712        \Umathcharnumdef\psi="1D713
\Umathcharnumdef\omega="1D714      \Umathcharnumdef\partial="1D715
\Umathcharnumdef\varepsilon="1D716 \Umathcharnumdef\vartheta="1D717
\Umathcharnumdef\varkappa="1D718   \Umathcharnumdef\phi="1D719
\Umathcharnumdef\varrho="1D71A     \Umathcharnumdef\varpi="1D71B }

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\Umathcodenum`G="1D406 \Umathcodenum`H="1D407 \Umathcodenum`I="1D408
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\Umathcodenum`M="1D40C \Umathcodenum`N="1D40D \Umathcodenum`O="1D40E
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\Umathcodenum`ϖ="1D6E1
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\Umathcodenum`9="1D7D7
\Umathcharnumdef\Alpha="1D6A8   \Umathcharnumdef\Beta="1D6A9
\Umathcharnumdef\Gamma="1D6AA   \Umathcharnumdef\Delta="1D6AB
\Umathcharnumdef\Epsilon="1D6AC \Umathcharnumdef\Zeta="1D6AD
\Umathcharnumdef\Eta="1D6AE     \Umathcharnumdef\varTheta="1D6AF
\Umathcharnumdef\Iota="1D6B0    \Umathcharnumdef\Kappa="1D6B1
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\font\mathrm="\mathfont" at \mathfontsize \textfont0=\mathrm \fam0
\font\mathrms="\mathfont;+ssty=0" at \scriptsize \scriptfont0=\mathrms
\font\mathrmss="\mathfont;+ssty=1" at \scriptscriptsize \scriptscriptfont0=\mathrmss
\font\mathcal="\mathfont;+ss01" at \mathfontsize \textfont2=\mathcal
\font\mathcals="\mathfont;+ss01;+ssty=0" at \scriptsize \scriptfont2=\mathcals
\font\mathcalss="\mathfont;+ss01;+ssty=1" at \scriptscriptsize \scriptscriptfont2=\mathcalss
% luatex ssty 0,1,2
\thinmuskip=2.25mu \medmuskip=3mu minus.75mu \thickmuskip=4.5mu minus.9mu

\ifdefined\mainfontsize\else\def\mainfontsize{10bp}\fi
\ifdefined\mainfont\else\def\mainfont{Latin Modern Roman}\fi
\font\tenrm="\mainfont:mapping=tex-text" at \mainfontsize \tenrm
\font\tenit="\mainfont/I:mapping=tex-text" at \mainfontsize %\let\tensl\tenrm
\font\tensl="\mainfont:slant=.15;mapping=tex-text" at \mainfontsize
\font\tenbf="\mainfont/B:mapping=tex-text" at \mainfontsize
\font\tensc="\mainfont:mapping=tex-text;+smcp" at \mainfontsize
\ifdefined\monofont\else\def\monofont{Courier}\fi
\font\tentt="\monofont" at \mainfontsize

\def\interwordskip=#1 plus#2 minus#3 {
  \fontdimen2\font=#1 \fontdimen3\font=#2 \fontdimen4\font=#3 }

%\XeTeXprotrudechars=2
%\def\protrude#1{%
%  \rpcode#1 U`. 200 \rpcode#1 U`, 200 \rpcode#1 U`- 300 \rpcode#1 U`; 100 }
%\protrude\tenrm \protrude\tenit

\chardef\ss="DF
\chardef\aa="E5 \chardef\AA="C5
\chardef\ae="E6 \chardef\AE="C6
\chardef\oe="153 \chardef\OE="152
\chardef\o="F8 \chardef\O="D8
\chardef\i="131 \chardef\j="237
\chardef\l="142 \chardef\L="141 % "197, "19A ?

\chardef\_="5F
\chardef\dag="2020
\chardef\ddag="2021
\chardef\S="A7
\chardef\P="B6
\chardef\Orb="20D8 % "20DD many others

\def\d{\accent"323}
\def\b{\accent"35F} % "2CD, "331, "5F !, "332
\def\c{\accent"B8} % comb: 327

\chardef\copyright="A9
\def\t{\accent"361}

\topskip=\baselineskip
\splittopskip=\baselineskip

\catcode`@=11
\def\big#1{{\hbox{$\left#1\vbox  to 1.9743ex{}\right.\n@space$}}}
\def\Big#1{{\hbox{$\left#1\vbox  to 2.671ex{}\right.\n@space$}}}
\def\bigg#1{{\hbox{$\left#1\vbox to 3.3678ex{}\right.\n@space$}}}
\def\Bigg#1{{\hbox{$\left#1\vbox to 4.0646ex{}\right.\n@space$}}}
\catcode`@=12

\def\makeheadline{\vbox to0pt{%\vskip-22.5pt
  \vskip\dimexpr\topskip-.7\baselineskip-2\baselineskip
  \line{%
  \vbox to.7\baselineskip{}%
  %\vbox to8.5pt{}
  \the\headline}\vss}\nointerlineskip}