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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.
% -- ignored: malignmark
% -- luacode will be moved to x-mmp.lua
\startluacode
do
lxml.mml = lxml.mml or { }
local replacements = {
[" "] = "&textspace;",
["."] = "&textperiod;",
[","] = "&textcomma;",
}
local reppattern = "([ %.%,])"
function lxml.mml.prepare_number(id,pattern)
local str = xml.content(lxml.id(id),pattern) or ""
str = str:gsub("^%s*(.-)%s*$","%1")
str = str:gsub(reppattern,replacements)
tex.sprint(str)
end
function lxml.mml.connect(id,pattern,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 unicode.utf8.gmatch(separators,"([^%s])") do
t[#t+1] = s
end
for i=1,n do
if i > 1 then
tex.sprint(tex.ctxcatcodes,"{")
tex.sprint(t[i] or t[#t] or "")
tex.sprint(tex.ctxcatcodes,"}")
end
lxml.idx(id,pattern,i) -- kind of slow, some day ...
end
end
end
local function flush(e,tag,toggle)
-- tex.sprint(tex.ctxcatcodes,(toggle and "^{") or "_{")
if toggle then
tex.sprint(tex.ctxcatcodes,"^{")
else
tex.sprint(tex.ctxcatcodes,"_{")
end
if tag == "none" then
tex.sprint(tex.ctxcatcodes,"{}")
else
xml.sprint(e.dt)
end
if not toggle then
tex.sprint(tex.ctxcatcodes,"}")
else
tex.sprint(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 = xml.tag(e)
if tag == "mprescripts" then
tex.sprint(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 = xml.tag(e)
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
% \xmlstrip {\xmldocument} {mml:mrow|mml:mi|mml:mn|mml:mo|mml:mroot|mml:msqrt|mml:mfenced|mml:mfrac|mml:enclose}
% \startxmlsetups xml:mmp:process
% \xmlgrab {\xmldocument} {mml:mrow|mml:mroot|mml:msqrt|mml:mi|mml:mo|mml:mn|mml:mfenced|mml:mfrac|mml:mspace|mml:enclose} {*}
% \xmlgrab {\xmldocument} {mml:mover|mml:munder|mml:munderover|mml:msub|mml:msup|mml:msubsup|mml:mmultiscripts} {*}
% \xmlgrab {\xmldocument} {mml:mstyle|mml:mtext|mml:merror|mml:mphantom|mml:mpadded|mml:ms|mp:mglyph} {*}
% \xmlgrab {\xmldocument} {mml:mlabeledtr|mml:mtr|mml:mtd|mml:mtable} {*}
% \stopxmlsetups
% \startxmlsetups xml:mmp:process
% \xmlgrab {\xmldocument} {mml:*} {*}
% \stopxmlsetups
% \xmlregistersetup{xml:mmp:process}
% 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
\dodoMMLfiller}
% setups
\defineXMLentity[textspace] {\enspace}
\defineXMLentity[textcomma] {{,}}
\defineXMLentity[textperiod] {{.}}
\defineXMLentity[_] {{\_}}
\defineXMLentity[^] {{\^}}
\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:mn % todo: mathvariant mathsize mathcolor mathbackground
% function and style
\begingroup
\rm \ctxlua{lxml.mml.prepare_number("#1","*")}
\endgroup
\stopxmlsetups
\startxmlsetups mml:mo
\edef\MMPoperator{\xmlstripped{#1}{*}}
\doifXMLentityelse{\detokenize\expandafter{\MMPoperator}} {
\getXMLentity\MMPoperator
} {
\MMPoperator
}
\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
\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 {
\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
\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
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