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% macros=mkvi
% makes sense (but rel vs op ...):
% \unexpanded\def\stackrel#1#2{\mathematics{\mathop{\let\limits\relax\mover{#2}{#1}}}}
% this can become a core helper
% bwe could do all of them in lua
\startluacode
local find = string.find
local lpegmatch = lpeg.match
local splitter = lpeg.Ct(lpeg.C(lpeg.patterns.nestedbraces + lpeg.patterns.utf8character)^1)
function commands.xmfenced(left,middle,right,content)
local l = left ~= "" and left or "("
local r = right ~= "" and right or ")"
local m = middle ~= "" and middle and lpegmatch(splitter,middle) or { "," }
local c = find(content,"{") and lpegmatch(splitter,content) or { content }
local n = #c
if n > 1 then
context("\\left%s",l)
for i=1,n do
if i > 1 then
context("%s %s",m[i] or m[#m],c[i])
else
context(c[i])
end
end
context("\\right%s",r)
else
context("\\left%s %s \\right%s",l,content,r)
end
end
\stopluacode
\unprotect
\unexpanded\def\mexecuteifdefined#1%
{\ifx#1\empty
\expandafter\secondoftwoarguments
\else\ifcsname#1\endcsname
\doubleexpandafter\firstoftwoarguments
\else
\doubleexpandafter\secondoftwoarguments
\fi\fi
{\csname#1\endcsname}}
% mrow
\let\mrow\mathematics
% msub msup msubsup
\starttexdefinition msub #1#2
\mathematics {
#1_{#2}
}
\stoptexdefinition
\starttexdefinition msup #1#2
\mathematics {
#1^{#2}
}
\stoptexdefinition
\starttexdefinition msubsup #1#2#3
\mathematics {
#1_{#2}^{#3}
}
\stoptexdefinition
% mn mo mi
\let\mn\mathematics
\let\mo\mathematics
\let\mi\mathematics
% ms mtext
\starttexdefinition ms #1
\text {
"#1"
}
\stoptexdefinition
\starttexdefinition mtext #1
\text {
#1
}
\stoptexdefinition
% mover
\starttexdefinition unexpanded moverabove #1
\edef\movercommand{\utfmathfiller\movertoken}
\mexecuteifdefined\movercommand {#1} \relax
\stoptexdefinition
\starttexdefinition unexpanded moverbase #1
\edef\mbasecommand{\utfmathfiller\mbasetoken}
\mexecuteifdefined\mbasecommand {#1}
\relax
\stoptexdefinition
\starttexdefinition unexpanded moverbasefiller #1#2
\edef\mbasecommand{e\utfmathcommandfiller\mbasetoken}
\mexecuteifdefined\mbasecommand \relax {#2} {}
\stoptexdefinition
\starttexdefinition unexpanded moveraccent #1#2
\edef\movercommand{\utfmathcommandabove\movertoken}
\mexecuteifdefined\movercommand \relax {#1}
\stoptexdefinition
\starttexdefinition unexpanded movertext #1#2
% \mathtriplet {\mathstylehbox{#1}} {#2} {}
\mathtriplet {\mathematics{#1}} {#2} {}
\stoptexdefinition
\starttexdefinition unexpanded moveraccentchecker #1#2
\edef\movertoken{\tochar{#2}}
\doifelseutfmathabove\movertoken \moveraccent \movertext {#1}{#2}
\stoptexdefinition
\starttexdefinition unexpanded mover #1#2
\mathematics {
\edef\mbasetoken{\tochar{#1}}
\doifelseutfmathfiller\mbasetoken \moverbasefiller \moveraccentchecker {#1}{#2}
}
\stoptexdefinition
% munder
\starttexdefinition unexpanded munderbelow #1
\edef\mundercommand{\utfmathfiller\mundertoken}
\mexecuteifdefined\mundercommand {#1} \relax
\stoptexdefinition
\starttexdefinition unexpanded munderbase #1
\edef\mbasecommand{\utfmathfiller\mbasetoken}
\mexecuteifdefined\mbasecommand {#1}
\relax
\stoptexdefinition
\starttexdefinition unexpanded munderbasefiller #1#2
\edef\mbasecommand{e\utfmathcommandfiller\mbasetoken}
\mexecuteifdefined\mbasecommand \relax {#2} {}
\stoptexdefinition
\starttexdefinition unexpanded munderaccent #1#2
\edef\mundercommand{\utfmathcommandbelow\mundertoken}
\mexecuteifdefined\mundercommand \relax {#1}
\stoptexdefinition
\starttexdefinition unexpanded mundertext #1#2
% \mathtriplet {\mathstylehbox{#1}} {} {#2}
\mathtriplet {\mathematics{#1}} {} {#2}
\stoptexdefinition
\starttexdefinition unexpanded munderaccentchecker #1#2
\edef\mundertoken{\tochar{#2}}
\doifelseutfmathbelow\mundertoken \munderaccent \mundertext {#1}{#2}
\stoptexdefinition
\starttexdefinition unexpanded munder #1#2
\mathematics {
\edef\mbasetoken{\tochar{#1}}
\doifelseutfmathfiller\mbasetoken \munderbasefiller \munderaccentchecker {#1}{#2}
}
\stoptexdefinition
% munderover
% mfenced
% \mfenced{x,y}
% \mfenced{{x}{y}}
% \mfenced[separators]{{x}{y}}
% \mfenced[left][right]{{x}{y}}
% \mfenced[left][separators][right]{{x}{y}}
\starttexdefinition unexpanded mfenced
\dotripleempty\do_mfenced
\stoptexdefinition
\starttexdefinition unexpanded do_mfenced [#1][#2][#3]#4
\mathematics {
\ctxcommand{xmfenced(
\ifthirdargument "#1","#2","#3"\else
\ifsecondargument "#1",",","#2"\else
\iffirstargument "(","#1",")"\else
"(",",",")"\fi\fi\fi
,"#4")}
}
\stoptexdefinition
% mfrac
\starttexdefinition unexpanded mfrac #1#2
\mathematics {
\frac{#1}{#2}
}
\stoptexdefinition
% mroot msqrt
\starttexdefinition unexpanded mroot #1#2
\mathematics {
\sqrt[#1]{#2}
}
\stoptexdefinition
\starttexdefinition unexpanded msqrt #1
\mathematics {
\sqrt{#1}
}
\stoptexdefinition
% menclose
% merror
% mglyph
% mmultiscripts
% mpadded
% mphantom
% mspace
% mstyle
% mtable mtr mlabeledtr mtd
% maction
% semantics
\protect
\continueifinputfile{x-mathml-basics.mkiv}
\starttext
$\mfenced{1+a}$\par
$\mfenced[,]{1+a}$\par
$\mfenced[,]{{1+a}{1+b}}$\par
% $\mover{←}{test}$\par
% $\mover{\utfchar{"2190}}{test}$\par
% $\mover{e:leftarrow}{test}$\par
% $\mover{x:2190}{test}$\par
% $\mover{test}{⏞}$\par
% $\mover{test}{\utfchar{"23DE}}$\par
% $\mover{test}{e:overbrace}$\par
% $\mover{test}{x:23DE}$\par
% $\mover{test}{over}$\par
% \mover{test}{⏞}\par
% \mover{test}{\utfchar{"23DE}}\par
% \mover{test}{e:overbrace}\par
% \mover{test}{x:23DE}\par
% $\munder{←}{test}$\par
% $\munder{\utfchar{"2190}}{test}$\par
% $\munder{e:leftarrow}{test}$\par
% $\munder{x:2190}{test}$\par
% $\munder{test}{⏟}$\par
% $\munder{test}{\utfchar{"23DF}}$\par
% $\munder{test}{e:underbrace}$\par
% $\munder{test}{x:23DF}$\par
% $\munder{test}{under}$\par
% \math{{\msup{x}{2}\mo{+}\mn{2}\mi{x}\mo{+}\mi{b}}}
% \mrow{\msup{x}{2}\mo{+}\mn{2}\mi{x}\mo{+}\mi{b}}
\stoptext
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