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-% zhmath.sty coded by YIN Dian
-% Use basic CJK characters in math environment.
-% Hist: 071202 First coded.
-% 071204 Set \XeTeXinterchartokenstate=0 to avoid a XeTeX bug.
-% Added \ProvidesPackage.
-% 071210 Added another method to set Chinese math fonts in
-% LaTeX, via option noactive. Improved format detection.
-% Added ability to set alpha and number fonts.
-% 071211 Put \setalphanummathfonts in preamble so that
-% \usecustommathfonts can be used in document in LaTeX.
-% Changed \hbox to \mbox. Changed default option to
-% noactive.
-% 071215 Removed \XeTeXinterchartokenstate=0, as the XeTeX bug
-% is fixed by JK. Changed \mathcjksizec/d to fit the
-% main text size.
-% 071229 Added \XeTeXinterchartokenstate=0 again, because not
-% everyone has the latest version of XeTeX. Added custom
-% and nocustom options.
-% 2016/02/10 Improved \@setzhmathfonts.
-\catcode`\@=11
-\ifx\zhmath@defined\@undefined
-\def\zhmath@defined{\relax}
-\def\filedate{2007/12/29}
-\ifx\zhspacingrevision\@undefined
-\input zhspacing.sty
-\fi
-
-\def\zhmath@setXeTeXmathcodefam#1#2#3{%
- % set #1..#2's math family to #3
- \count@=#1%
- \loop
- \XeTeXmathcode\count@=7 #3 \count@
- \unless\ifnum\count@>#2%
- \advance\count@ by 1
- \repeat
-}
-
-\def\zhmath@setactivemathchar#1#2#3#4#5#6{%
- % set #1..#2 to active math chars, executing \mathchoice #3 #4 #5 #6.
- \count@=#1%
- \loop
- \mathcode\count@="8000
- {\catcode\count@=\active\lccode`\~=\count@
- \lowercase{\xdef~{{\mathchoice{\noexpand#3{\number\count@}}%
- {\noexpand#4{\number\count@}}{\noexpand#5{\number\count@}}
- {\noexpand#6{\number\count@}}}}}%
- }%
- \unless\ifnum\count@>#2%
- \advance\count@ by 1
- \repeat
-}
-\newif\ifzhmath@active
-\newif\ifzhmath@custom
-
-\ifLaTeX@e % in LaTeX, similar to mathcjk
-
-\ProvidesPackage{zhmath}[\filedate]
-\DeclareOption{active}{\zhmath@activetrue}
-\DeclareOption{noactive}{\zhmath@activefalse}
-\DeclareOption{custom}{\zhmath@customtrue}
-\DeclareOption{nocustom}{\zhmath@customfalse}
-\zhmath@activefalse
-\zhmath@customtrue
-\ProcessOptions\relax
-
-\def\mathcjksizea{}
-\def\mathcjksizeb{}
-\def\mathcjksizec{\dimen@=\dimexpr\f@size pt*6/10\relax\fontsize{\dimen@}{\dimen@}}
-\def\mathcjksized{\dimen@=\dimexpr\f@size pt*5/10\relax\fontsize{\dimen@}{\dimen@}}
-
-\@ifundefined{zhmathfont}{\newfontfamily\zhmathfont{SimSun}}{}
-
-\ifzhmath@active
- \def\zhmath@zhfont@disp#1{{\mbox{\XeTeXinterchartokenstate=0\zhmathfont\mathcjksizea\char#1\relax}}}
- \def\zhmath@zhfont@text#1{{\mbox{\XeTeXinterchartokenstate=0\zhmathfont\mathcjksizeb\char#1\relax}}}
- \def\zhmath@zhfont@scrp#1{{\mbox{\XeTeXinterchartokenstate=0\zhmathfont\mathcjksizec\char#1\relax}}}
- \def\zhmath@zhfont@subs#1{{\mbox{\XeTeXinterchartokenstate=0\zhmathfont\mathcjksized\char#1\relax}}}
-
- \zhmath@setactivemathchar{"2E80}{"9FFF}{\zhmath@zhfont@disp}%
- {\zhmath@zhfont@text}{\zhmath@zhfont@scrp}{\zhmath@zhfont@subs}
-
- \def\setzhmathfont#1{\let\zhmathfont=#1}
-\else
- \def\setzhmathfont#1{%
- \let\zhmathfont=#1%
- \begingroup
- \normalfont
- \zhmathfont
- \xdef\zhmath@fenc{\f@encoding}%
- \xdef\zhmath@ffam{\f@family}%
- \endgroup
- \DeclareSymbolFont{hanzi}{\zhmath@fenc}{\zhmath@ffam}{m}{n}%
- }
- \setzhmathfont\zhmathfont
- \zhmath@setXeTeXmathcodefam{"2E80}{"9FFF}{\symhanzi}
-\fi
-
-\ifzhmath@custom
-\def\setalphanummathfonts#1{%
- \let\zhmathalphanumfont=#1%
- \begingroup
- \normalfont
- \zhmathalphanumfont
- \xdef\zhmath@@fenc{\f@encoding}%
- \xdef\zhmath@@ffam{\f@family}%
- \endgroup
- \DeclareSymbolFont{@letter}{\zhmath@@fenc}{\zhmath@@ffam}{m}{it}%
- \DeclareSymbolFont{@number}{\zhmath@@fenc}{\zhmath@@ffam}{m}{n}%
- \SetSymbolFont{@letter}{bold}{\zhmath@@fenc}{\zhmath@@ffam}{bx}{it}%
- \SetSymbolFont{@number}{bold}{\zhmath@@fenc}{\zhmath@@ffam}{bx}{n}%
-}
-\@ifundefined{zhmathalphanumfont}{\newfontfamily\zhmathalphanumfont{Times New Roman}}{}
-\setalphanummathfonts\zhmathalphanumfont
-\def\usecustommathfonts{%
- \zhmath@setXeTeXmathcodefam{`\0}{`\9}{\sym@number}
- \zhmath@setXeTeXmathcodefam{`\a}{`\z}{\sym@letter}
- \zhmath@setXeTeXmathcodefam{`\A}{`\Z}{\sym@letter}
-}
-\fi
-
-\else %in plain TeX
-
-\@ifundefined{zhmathfont}{\font\zhmathfont="SimSun" at 10pt}{}
-\newfam\zhmath@fam
-\newfam\zhmath@letterfam
-\newfam\zhmath@numberfam
-
-\begingroup
- \catcode`\A=12 %
- \catcode`\P=12 %
- \catcode`\T=12 %
-\lowercase{\endgroup
- \def\@setzhmathfonts#1#2{%
- \expandafter\@setzhmathfonts@auxi\fontname#1 AT PT\relax#2}
- \def\@setzhmathfonts@auxi #1 AT #2PT#3\relax#4{%
- \ifx\relax#2\relax
- \@setzhmathfonts@auxii#4{#1}{10pt}%
- \else
- \@setzhmathfonts@auxii#4{#1}{#2pt}%
- \fi}%
-}
-\def\@setzhmathfonts@auxii#1#2#3{%
- \font\zhmath@textfont=#2 at #3 \relax
- \font\zhmath@scriptfont=#2 at .7\dimexpr#3\relax\relax
- \font\zhmath@scriptscriptfont=#2 at .5\dimexpr#3\relax\relax
- \textfont#1=\zhmath@textfont
- \scriptfont#1=\zhmath@scriptfont
- \scriptscriptfont#1=\zhmath@scriptscriptfont}
-\def\setzhmathfont#1{\@setzhmathfonts{#1}\zhmath@fam}
-\setzhmathfont\zhmathfont
-
-\def\setalphanummathfonts#1#2{% #1: alpha, #2, num
- \@setzhmathfonts{#1}\zhmath@letterfam
- \@setzhmathfonts{#2}\zhmath@numberfam
-}
-
-\zhmath@setXeTeXmathcodefam{"2E80}{"9FFF}{\zhmath@fam}
-
-\def\usecustommathfonts{%
- \@ifundefined{zhmathletterfont}{\font\zhmathletterfont="Times New Roman/I" at 10pt}{}
- \@ifundefined{zhmathnumberfont}{\font\zhmathnumberfont="Times New Roman" at 10pt}{}
- \setalphanummathfonts\zhmathletterfont\zhmathnumberfont
- \zhmath@setXeTeXmathcodefam{`\0}{`\9}{\zhmath@numberfam}
- \zhmath@setXeTeXmathcodefam{`\a}{`\z}{\zhmath@letterfam}
- \zhmath@setXeTeXmathcodefam{`\A}{`\Z}{\zhmath@letterfam}
-}
-
-\fi % end if LaTeX
-\fi