\NeedsTeXFormat{LaTeX2e}[2018/01/01]
\def\fileversion{0.35}
\def\filedate{2022-11-04}
\ProvidesPackage{xcharter-otf}[\filedate\space\fileversion]

% Ensure luatex or xetex engine
\RequirePackage{iftex}[2019/10/24]
\RequireTUTeX
\RequirePackage{unicode-math}

\newopentypefeature{Style}{upint}{+ss03}
\newopentypefeature{Style}{leqslant}{+ss04}
\newopentypefeature{Style}{smaller}{+ss05}
\newopentypefeature{Style}{subsetneq}{+ss06}
\newopentypefeature{Style}{parallelslant}{+ss07}

\newcommand*{\XCstore@KV@Option}[2]{%
  \def\XCot@scale{Scale}\def\XCot@opt{#1}%
  \ifx\XCot@opt\XCot@scale\XCottoksT={Scale={#2}}\fi
  \XCottoksM=\expandafter{\the\XCottoksM #1={#2},}}

% Options: forward them to \setmathfont except "tight", "loose" and "no-text".
\RequirePackage{xkeyval}
\newtoks\XCottoksT
\newtoks\XCottoksM

\newif\ifXCot@tight
\newif\ifXCot@notext
\DeclareOptionX{no-text}{\XCot@notexttrue}
\DeclareOptionX{tight}{\XCot@tighttrue}
\DeclareOptionX{loose}{\XCot@tightfalse}
\DeclareOptionX{fulloldstyle}{\XCstore@KV@Option{Numbers}{OldStyle}}
\DeclareOptionX{math-style}{\XCstore@KV@Option{math-style}{#1}}
\DeclareOptionX{bold-style}{\XCstore@KV@Option{bold-style}{#1}}
\DeclareOptionX{nabla}{\XCstore@KV@Option{nabla}{#1}}
\DeclareOptionX{partial}{\XCstore@KV@Option{partial}{#1}}
\DeclareOptionX{CharacterVariant}{\XCstore@KV@Option{CharacterVariant}{#1}}
\DeclareOptionX{StylisticSet}{\XCstore@KV@Option{StylisticSet}{#1}}
\DeclareOptionX{Style}{\XCstore@KV@Option{Style}{#1}}
\DeclareOptionX{Scale}{\XCstore@KV@Option{Scale}{#1}}
\ExecuteOptionsX{tight}
\ProcessOptionsX
% Math fonts: XCharter-Math.otf
% Following Joseph Wright in https://tex.stackexchange.com/questions/451
\begingroup
  \edef\temp{%
    \endgroup
    \noexpand\setmathfont{XCharter-Math.otf}%
    [\unexpanded\expandafter{\the\XCottoksM}]%
  }
  \temp
%
\ifXCot@tight
  \thinmuskip=2mu
  \medmuskip=2.5mu plus 1mu minus 2.5mu
  \thickmuskip=3.5mu plus 2.5mu
\fi
% Text Serif fonts: XCharter with possible scaling.
\ifXCot@notext
\else
  \RequirePackage{realscripts}
  \setmainfont{XCharter}[\unexpanded\expandafter{\the\XCottoksT}]
\fi

% Text Sans Serif fonts: default (lmss unless specified)
% Text Typewriter fonts: default (lmtt unless specified)

\AtBeginDocument{%
  % XCharter specific math
  % \Umathchardef\<cmd> = <math type> <family> <slot>
  % <math type> : \mathord=0 \mathrel=3 ; <family>=0
  \Umathchardef\varemptyset =         0 0 "E021 \relax
  \Umathchardef\mupvarzero =          0 0 "E022 \relax
  \Umathchardef\mbfvarzero =          0 0 "E023 \relax
  \Umathchardef\varpropto =           0 0 "E02F \relax
  \Umathchardef\mbfdotlessi =         0 0 "E046 \relax
  \Umathchardef\mbfdotlessj =         0 0 "E047 \relax
  \Umathchardef\mbfimath =            0 0 "E066 \relax
  \Umathchardef\mbfjmath =            0 0 "E067 \relax
  \Umathchardef\mithbar =             0 0 "E078 \relax
  \Umathchardef\parallelslant  =      3 0 "E090 \relax
  \Umathchardef\nparallelslant =      3 0 "E091 \relax
  \Umathchardef\shortparallelslant =  3 0 "E092 \relax
  \Umathchardef\nshortparallelslant = 3 0 "E093 \relax
  \Umathchardef\lesseqslantgtr =      3 0 "E094 \relax
  \Umathchardef\gtreqslantless =      3 0 "E095 \relax
  \Umathchardef\lesseqqslantgtr =     3 0 "E096 \relax
  \Umathchardef\gtreqqslantless =     3 0 "E097 \relax
  \Umathchardef\nleqqslant =          3 0 "E098 \relax
  \Umathchardef\ngeqqslant =          3 0 "E099 \relax
  \Umathchardef\varsymscrE =          0 0 "E07D \relax
  \Umathchardef\varsymscrQ =          0 0 "E07E \relax
  \Umathchardef\varsymscrT =          0 0 "E07F \relax
  \Umathchardef\varsymbfscrE =        0 0 "E06D \relax
  \Umathchardef\varsymbfscrQ =        0 0 "E06E \relax
  \Umathchardef\varsymbfscrT =        0 0 "E06F \relax
 % \widearc and\overrightarc
  \newcommand*{\widearc}{\Umathaccent 0 0 "E540 }%
  \newcommand*{\overrightarc}{\Umathaccent 0 0 "20D5 }%
  % amssymb
  \@ifpackageloaded{amssymb}%
    {\PackageWarning{xcharter-otf}{%
       XCharter-Math provides all AMS symbols.\MessageBreak
       Loading amssymb.sty is not advisable.\MessageBreak
       Reported}%
    }%
    {% AMS Symbols not referenced in unicode-math-table.tex
     % \Umathchardef\<cmd> = <math type> <family> <slot>
     % <math type> : \mathord=0 \mathrel=3 ; <family>=0
     \Umathchardef\circledR =       0 0 "24C7 \relax
     \Umathchardef\circledS =       0 0 "24C8 \relax
     \Umathchardef\diagup =         0 0 "E0A0 \relax
     \Umathchardef\diagdown =       0 0 "E0A1 \relax
     \Umathchardef\shortmid =       3 0 "E0A2 \relax
     \Umathchardef\shortparallel =  3 0 "E0A3 \relax
     \Umathchardef\nshortmid =      3 0 "E0A4 \relax
     \Umathchardef\nshortparallel = 3 0 "E0A5 \relax
     \Umathchardef\lvertneqq =      3 0 "E0A6 \relax
     \Umathchardef\gvertneqq =      3 0 "E0A7 \relax
     \Umathchardef\nleqslant =      3 0 "E0A8 \relax
     \Umathchardef\ngeqslant =      3 0 "E0A9 \relax
     \Umathchardef\nleqq =          3 0 "E0AA \relax
     \Umathchardef\ngeqq =          3 0 "E0AB \relax
     \Umathchardef\varsubsetneq =   3 0 "E0AC \relax
     \Umathchardef\varsupsetneq =   3 0 "E0AD \relax
     \Umathchardef\nsubseteqq =     3 0 "E0AE \relax
     \Umathchardef\nsupseteqq =     3 0 "E0AF \relax
     \Umathchardef\varsubsetneqq =  3 0 "E09C \relax
     \Umathchardef\varsupsetneqq =  3 0 "E09D \relax
     \Umathchardef\npreceq =        3 0 "E09E \relax
     \Umathchardef\nsucceq =        3 0 "E09F \relax
     \let\centerdot\cdotp
     \let\restriction\upharpoonright
     \let\doteqdot\Doteq
     \let\doublecup\Cup
     \let\doublecap\Cap
     \let\llless\lll
     \let\gggtr\ggg
     \let\circlearrowleft\acwopencirclearrow
     \let\circlearrowright\cwopencirclearrow
     \let\lozenge\mdlgwhtlozenge
     \let\blacklozenge\mdlgblklozenge
     \let\square\mdlgwhtsquare
     \let\blacksquare\mdlgblksquare
     \let\dashleftarrow\leftdasharrow
     \let\dashrightarrow\rightdasharrow
     \let\ntriangleleft\nvartriangleleft
     \let\ntriangleright\nvartriangleright
     \let\varpropto\propto
     \let\thicksim\sim
     \let\thickapprox\approx
     \let\smallsmile\smile
     \let\smallfrown\frown
    }%
  % latexsym
  \@ifpackageloaded{latexsym}%
    {\PackageWarning{xcharter-otf}{%
       XCharter-Math provides all LaTeX symbols.\MessageBreak
       Loading latexsym.sty is not advisable.\MessageBreak
       Reported}%
    }%
    {\let\lhd\vartriangleleft
     \let\rhd\vartriangleright
     \let\unlhd\trianglelefteq
     \let\unrhd\trianglerighteq
     \let\leadsto\rightcurvedarrow
     \let\Box\lgwhtsquare
     \let\Diamond\mdlgwhtdiamond
    }%
}

\endinput
