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%D \module
%D [ file=x-mmp,
%D version=2007.09.04,
%D title=\CONTEXT\ XML Modules,
%D subtitle=Presentation MathML Renderer,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA ADE}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\startluacode
do
lxml.mml = lxml.mml or { }
local texsprint = tex.sprint
-- an alternative is to remap to private codes, where we can have
-- different properties .. to be done
local n_replacements = {
-- [" "] = utf.char(0x2002), -- "&textspace;" -> tricky, no &; in mkiv
["."] = "{.}",
[","] = "{,}",
[" "] = "",
}
local o_replacements = {
["{"] = "\\mmlleftdelimiter\\lbrace",
["}"] = "\\mmlrightdelimiter\\rbrace",
["("] = "\\mmlleftdelimiter(",
[")"] = "\\mmlrightdelimiter)",
["["] = "\\mmlleftdelimiter[",
["]"] = "\\mmlrightdelimiter]",
["<"] = "\\mmlleftdelimiter<",
[">"] = "\\mmlrightdelimiter>",
["#"] = "\\mmlchar{35}",
["$"] = "\\mmlchar{36}",
["%"] = "\\mmlchar{37}",
["&"] = "\\mmlchar{38}",
["^"] = "\\mmlchar{94}{}", -- strange, sometimes luatex math see the char instead of \char
["_"] = "\\mmlchar{95}{}", -- so we need the {}
["~"] = "\\mmlchar{126}",
[" "] = "",
}
local i_replacements = {
["sin"] = "\\mathopnolimits{sin}",
["cos"] = "\\mathopnolimits{cos}",
["abs"] = "\\mathopnolimits{abs}",
["arg"] = "\\mathopnolimits{arg}",
["codomain"] = "\\mathopnolimits{codomain}",
["curl"] = "\\mathopnolimits{curl}",
["determinant"] = "\\mathopnolimits{det}",
["divergence"] = "\\mathopnolimits{div}",
["domain"] = "\\mathopnolimits{domain}",
["gcd"] = "\\mathopnolimits{gcd}",
["grad"] = "\\mathopnolimits{grad}",
["identity"] = "\\mathopnolimits{id}",
["image"] = "\\mathopnolimits{image}",
["lcm"] = "\\mathopnolimits{lcm}",
["max"] = "\\mathopnolimits{max}",
["median"] = "\\mathopnolimits{median}",
["min"] = "\\mathopnolimits{min}",
["mode"] = "\\mathopnolimits{mode}",
["mod"] = "\\mathopnolimits{mod}",
["polar"] = "\\mathopnolimits{Polar}",
["exp"] = "\\mathopnolimits{exp}",
["ln"] = "\\mathopnolimits{ln}",
["log"] = "\\mathopnolimits{log}",
["sin"] = "\\mathopnolimits{sin}",
["arcsin"] = "\\mathopnolimits{arcsin}",
["sinh"] = "\\mathopnolimits{sinh}",
["arcsinh"] = "\\mathopnolimits{arcsinh}",
["cos"] = "\\mathopnolimits{cos}",
["arccos"] = "\\mathopnolimits{arccos}",
["cosh"] = "\\mathopnolimits{cosh}",
["arccosh"] = "\\mathopnolimits{arccosh}",
["tan"] = "\\mathopnolimits{tan}",
["arctan"] = "\\mathopnolimits{arctan}",
["tanh"] = "\\mathopnolimits{tanh}",
["arctanh"] = "\\mathopnolimits{arctanh}",
["cot"] = "\\mathopnolimits{cot}",
["arccot"] = "\\mathopnolimits{arccot}",
["coth"] = "\\mathopnolimits{coth}",
["arccoth"] = "\\mathopnolimits{arccoth}",
["csc"] = "\\mathopnolimits{csc}",
["arccsc"] = "\\mathopnolimits{arccsc}",
["csch"] = "\\mathopnolimits{csch}",
["arccsch"] = "\\mathopnolimits{arccsch}",
["sec"] = "\\mathopnolimits{sec}",
["arcsec"] = "\\mathopnolimits{arcsec}",
["sech"] = "\\mathopnolimits{sech}",
["arcsech"] = "\\mathopnolimits{arcsech}",
[" "] = "",
["false"] = "{\\mr false}",
["notanumber"] = "{\\mr NaN}",
["otherwise"] = "{\\mr otherwise}",
["true"] = "{\\mr true}",
["declare"] = "{\\mr declare}",
["as"] = "{\\mr as}",
}
function lxml.mml.prepare_number(id,pattern)
local str = xml.content(lxml.id(id),pattern) or ""
texsprint(tex.ctxcatcodes,(str:gsub(".",n_replacements)))
end
function lxml.mml.prepare_operator(id,pattern)
local str = xml.content(lxml.id(id),pattern) or ""
tex.sprint(tex.ctxcatcodes,(str:gsub(".",o_replacements)))
end
function lxml.mml.prepare_identifier(id,pattern)
local str = xml.content(lxml.id(id),pattern) or ""
str = str:gsub("^%s*(.*)%s*$","%1")
local rep = i_replacements[str]
if rep then
tex.sprint(tex.ctxcatcodes,rep)
else
tex.sprint(tex.ctxcatcodes,(str:gsub(".",i_replacements)))
end
end
function lxml.mml.connect(id,pattern,separators) -- multiple separators
local n = xml.count(id,pattern)
if n == 0 then
-- skip
elseif n == 1 then
lxml.all(id,pattern)
else
local t = { }
for s in utf.gmatch(separators,"([^%s])") do
t[#t+1] = s
end
for i=1,n do
if i > 1 then
texsprint(tex.ctxcatcodes,"{")
texsprint(t[i] or t[#t] or "")
texsprint(tex.ctxcatcodes,"}")
end
lxml.idx(id,pattern,i) -- kind of slow, some day ...
end
end
end
local function flush(e,tag,toggle)
-- texsprint(tex.ctxcatcodes,(toggle and "^{") or "_{")
if toggle then
texsprint(tex.ctxcatcodes,"^{")
else
texsprint(tex.ctxcatcodes,"_{")
end
if tag == "none" then
texsprint(tex.ctxcatcodes,"{}")
else
xml.sprint(e.dt)
end
if not toggle then
texsprint(tex.ctxcatcodes,"}")
else
texsprint(tex.ctxcatcodes,"}{}")
end
return not toggle
end
function lxml.mml.multiscripts(id)
local done, toggle = false, false
id = lxml.id(id)
-- for i=1,#id.dt do local e = id.dt[i] if type(e) == table then ...
for r, d, k in xml.elements(id,"/*") do
local e = d[k]
local tag = e.tg
if tag == "mprescripts" then
texsprint(tex.ctxcatcodes,"{}")
done = true
elseif done then
toggle = flush(e,tag,toggle)
end
end
local done, toggle = false, false
for r, d, k in xml.elements(id,"/*") do
local e = d[k]
local tag = e.tg
if tag == "mprescripts" then
break
elseif done then
toggle = flush(e,tag,toggle)
else
xml.sprint(e.dt)
done = true
end
end
end
end
\stopluacode
\unprotect
% helpers
% \let\myspecialnormalvert\myspecialstretchvert
% \setupMMLappearance[scripts][\c!alternative=\v!a] {} rond base
\mapXMLvalue{mmp}{normal} {\tf} \mapXMLvalue{mmp}{double-stuck} {\bf}
\mapXMLvalue{mmp}{bolditalic} {\bi} \mapXMLvalue{mmp}{bold-italic} {\bi}
\mapXMLvalue{mmp}{boldslanted}{\bs} \mapXMLvalue{mmp}{bold-slanted} {\bs}
\mapXMLvalue{mmp}{boldnormal} {\bf} \mapXMLvalue{mmp}{bold} {\bf}
\mapXMLvalue{mmp}{slanted} {\sl} \mapXMLvalue{mmp}{normalslanted}{\sl}
\mapXMLvalue{mmp}{italic} {\it} \mapXMLvalue{mmp}{normalitalic} {\it}
\mapXMLvalue{mmp}{fraktur} {\bf} \mapXMLvalue{mmp}{bold-fraktur} {\bf}
\mapXMLvalue{mmp}{script} {\tf} \mapXMLvalue{mmp}{bold-script} {\bf}
\def\setMMLptextstyle#1%
{\XMLval{mmp}{\xmlatt{#1}{fontweight}\xmlatt{#1}{fontstyle}}{}}
\def\setMMLpmathstyle#1%
{\XMLval{mmp}{\xmlatt{#1}{mathvariant}}{}}
\def\doMMPpcolor#1%
{\doifelsenothing{\xmlatt{#1}{color}} \firstofoneargument {\color[\xmlatt{#1}{color}]}}
\def\doMMPpbackground#1%
{\doifelsenothing{\xmlatt{#1}{background}}
{\firstofoneargument}
{\inframed
[\c!frame=\v!off,
\c!background=\v!color,
\c!backgroundcolor=\xmlatt{#1}{background}]}}
\def\doMMPpsometext#1#2%
{\doMMPpbackground{#1}{\doMMPpcolor{#1}{\setMMLptextstyle{#1}\ignorespaces#2\removeunwantedspaces}}}
\def\doMMLfiller#1% bugged
{\pushmacro\doMMLfiller
\let\doMMLfiller\gobbleoneargument
\gdef\dodoMMLfiller{\disablefiller\mathematics{#1}}%
\hbox
{\def\normalorfiller##1##2%
{\gdef\dodoMMLfiller{\enablefiller#1}%
\let\normalorfiller\gobbletwoarguments}%
$#1$}%
\popmacro\doMMLfiller}
% setups
% \defineXMLentity[_] {{\_{}}}
% \defineXMLentity[^] {{\^{}}}
% \defineXMLentity[_] {\string_}
% \defineXMLentity[^] {\normalorfiller\hat\widehat}
\startsetups mml:semantics % todo: width=ex/ex/pt
\xmlflush{#1}
\stopsetups
% \startxmlsetups mml:mi % todo: mathvariant mathsize mathcolor mathbackground
% \edef\MMPidentifier{\xmlstripped{#1}{*}}
% \doifXMLentityelse{\detokenize\expandafter{\MMPidentifier}} {
% \getXMLentity\MMPidentifier
% } {
% \MMPidentifier
% }
% \stopxmlsetups
\startxmlsetups mml:mi % todo: mathvariant mathsize mathcolor mathbackground
\ctxlua{lxml.mml.prepare_identifier("#1","*")}
\stopxmlsetups
\startxmlsetups mml:mn % todo: mathvariant mathsize mathcolor mathbackground
\begingroup
\mr \ctxlua{lxml.mml.prepare_number("#1","*")}%
\endgroup
\stopxmlsetups
% hbox will make . and , behave ok, see rep patterns above as alternative
%
% \startxmlsetups mml:mn % todo: mathvariant mathsize mathcolor mathbackground
% \mathop{\hbox{\mr \ctxlua{lxml.mml.prepare_number("#1","*")}}}% we need . and , properly spaced
% \stopxmlsetups
% \startxmlsetups mml:mo
% \edef\MMPoperator{\ctxlua{lxml.mml.prepare_operator("#1","*")}}
% \doifXMLentityelse{\detokenize\expandafter{\MMPoperator}} {
% \getXMLentity\MMPoperator
% } {
% \MMPoperator
% }
% \stopxmlsetups
% also ok:
\startxmlsetups mml:mo
\ctxlua{lxml.mml.prepare_operator("#1","*")}
\stopxmlsetups
\startxmlsetups mml:mrow
\begingroup
\ifcase\xmlcount{#1}{/mml:mo}\relax
\xmlflush{#1}
\else % no \let
\def\MMLleft {\left }
\def\MMLright{\right}
\enabledelimiter
\checkdelimiters{\xmlall{#1}{/mml:mo}}
\fakeleftdelimiter
\xmlflush{#1}
\fakerightdelimiter
\disabledelimiter
\fi
\endgroup
\stopxmlsetups
\startxmlsetups mml:mstyle
\begingroup
\setMMLpmathstyle{#1}
\xmlflush{#1}
\endgroup
\stopxmlsetups
\startxmlsetups mml:ms
\xmlattdef{#1}{lquot}{"}
\doMMPpsometext{#1}{\xmlflush{#1}}
\xmlattdef{#1}{rquot}{"}
\stopxmlsetups
\startxmlsetups mml:mtext
\hbox \bgroup \tf % else encoding problems, we can make mr an option
\doMMPpsometext{#1}{\xmlflush{#1}}
\egroup
\stopxmlsetups
\startxmlsetups mml:merror
\hbox{$\displaystyle\xmlflush{#1}$}
\stopxmlsetups
\startxmlsetups mml:mphantom
\phantom{{}\xmlflush{#1}{}}
\stopxmlsetups
\startxmlsetups mml:mpadded
\xmlflush{#1}
\stopxmlsetups
\startxmlsetups mml:mfenced % {} around separator is needed for spacing
\edef\MMPopen {\xmlatt{#1}{open}}
\edef\MMPclose {\xmlatt{#1}{close}}
\edef\MMPseparators{\xmlatt{#1}{separators}}
\ifx\MMPseparators\empty \def\MMPseparators{,}\fi
\doifelsenothing \MMPopen {
\left.
} {
\left\MMPopen
}
\ctxlua{lxml.mml.connect("#1","/*","\MMPseparators")}%
\doifelsenothing \MMPclose {
\right.
} {
\right\MMPclose
}
\stopxmlsetups
\startxmlsetups mml:menclose % notation=.....
% we will implement this when we need it
\xmlflush{#1}
\stopxmlsetups
\startxmlsetups mml:msqrt
\sqrt{\xmlflush{#1}}
\stopxmlsetups
\startxmlsetups mml:mroot
\root{\xmlindex{#1}{*}{1}}\of{\xmlindex{#1}{*}{2}}
\stopxmlsetups
\startsetups mml:mfrac % dodo: handle linethickness in lua + unit
\begingroup
\edef\MMPlinethickness{\xmlatt{#1}{linethickness}}
\ifx\MMPlinethickness\empty
\doifelse{\xmlatt{#1}{bevelled}}{true} {
\xmlindex{#1}{/*}{1}
\mathpunct{\kern-.2ex\left.\middle/\right.\kern-.25ex}
\xmlindex{#1}{/*}{2}
} {
\frac{\xmlindex{#1}{/*}{1}}{\xmlindex{#1}{/*}{2}}
}
\else
\processaction
[\MMPlinethickness]
[ thin=>\scratchdimen=.2pt,
medium=>\scratchdimen=.4pt,
thick=>\scratchdimen=.8pt,
unknown=>\setdimensionwithunit\scratchdimen{\MMPlinethickness}{pt}]
{
{\xmlindex{#1}{/*}{1}}
\above\scratchdimen
{\xmlindex{#1}{/*}{2}}
}
\fi
\endgroup
\stopsetups
\startsetups mml:mspace % todo: width=ex/ex/pt
\hskip.5em\relax
\stopsetups
% {} around first component is essential!
\startsetups mml:msub
{\xmlindex{#1}{/*}{1}}_{\xmlindex{#1}{/*}{2}}
\stopsetups
\startsetups mml:msup
{\xmlindex{#1}{/*}{1}}^{\xmlindex{#1}{/*}{2}}
\stopsetups
\startsetups mml:msubsup
{\xmlindex{#1}{/*}{1}}_{\xmlindex{#1}{/*}{2}}^{\xmlindex{#1}{/*}{3}}
\stopsetups
\startsetups mml:mover
\mathop {
\edef\mmlovertoken{\xmlraw{#1}{/mml:mo[position()==2]}}
\doifelse{\utfmathclass\mmlovertoken}{accent} {
\utfmathcommand\mmlovertoken{\xmlindex{#1}{/*}{1}}
} {
\vbox {
\m@th\ialign {
\hss##\hss\crcr
\noalign{\kern3\p@}%
\disabledelimiter\doMMLfiller{
\xmlindex{#1}{/*}{2}
}\crcr
\noalign{\kern3\p@\nointerlineskip}%
\disabledelimiter\doMMLfiller{
\xmlindex{#1}{/*}{1}
}\crcr
}
}
}
}
\limits
\stopsetups
\startsetups mml:munder
\mathop {
\vtop {
\m@th\ialign{
\hss##\hss\crcr
\disabledelimiter\doMMLfiller{\xmlindex{#1}{/*}{1}}\crcr
\noalign{\kern3\p@\nointerlineskip}%
\disabledelimiter\doMMLfiller{\xmlindex{#1}{/*}{2}}\crcr
\noalign{\kern3\p@}
}
}
}
\limits
\stopsetups
\startsetups mml:munderover
\edef\mmlunderovertoken{\xmlraw{#1}{/mml:mo[position()==1]}}
% \doifelse{\utfmathclass\mmlunderovertoken}{limop} {
% \utfmathcommand\mmlunderovertoken
% } {
% \xmlindex{#1}{/*}{1}
% {
\utfmathcommanddefault\mmlunderovertoken{xmlindex}{{#1}{/*}{1}}
_{\disablefiller\disabledelimiter\xmlindex{#1}{/*}{2}}
^{\disablefiller\disabledelimiter\xmlindex{#1}{/*}{3}}
\stopsetups
\startxmlsetups mml:mlabeledtr
\bTR \xmlall{#1}{/mml:mtd} \eTR
\stopxmlsetups
\startxmlsetups mml:mtr
\bTR \xmlall{#1}{/mml:mtd} \eTR
\stopxmlsetups
\startxmlsetups mml:mtd
\bTD$\MMLhack\xmlall{#1}{/*}\relax$\eTD
\stopxmlsetups
\startxmlsetups mml:mtable
\vcenter \bgroup
\bTABLE[\c!frame=\v!off]
\xmlall{#1}{/mml:mtr|mml:mlabeledtr}
\eTABLE
\egroup
\stopxmlsetups
\startxmlsetups mml:mmultiscripts
\ctxlua{lxml.mml.multiscripts("#1")}
\stopxmlsetups
\protect \endinput
|
