* Re: What module does this document use ?
2007-05-08 21:54 ` Lingyun Yang
@ 2007-05-09 7:08 ` Hans Hagen
2007-05-09 16:15 ` Lingyun Yang
0 siblings, 1 reply; 7+ messages in thread
From: Hans Hagen @ 2007-05-09 7:08 UTC (permalink / raw)
To: mailing list for ConTeXt users
[-- Attachment #1: Type: text/plain, Size: 5223 bytes --]
Lingyun Yang wrote:
> Thank you all,
>
> I found a s-pre-17 at http://wiki.contextgarden.net/Presentation_Styles
> But not the one I want to use,
> http://www.pragma-ade.com/present/talks/pre-mml.pdf
> and contextgarden.net didn't provide the s-pre-17.tex file.
>
undocumented, untested, etc etc
>
> Lingyun
>
>
> On 5/7/07, Zhichu Chen <zhichu.chen@gmail.com> wrote:
>>
>> Hi Lingyun,
>>
>> You don't have s-pre-17.tex in you tex's path (neither have I) so
>> \TitlePage is not defined (it's supposed to be defined in
>> s-pre-17.tex ). Maybe
>> you can get a copy from Hans and copy it to your
>> texmf-local\tex\context\base directory and texexec --make then mktexlsr.
>>
>>
>> On 5/8/07, Lingyun Yang <lingyun.zjdt@gmail.com> wrote:
>>
>> > I tried a simple tex file:
>> >
>> > \usemodule[pre-17,mathml]
>> > \TitlePage{Hello World!}
>> >
>> > but get the following error:
>> >
>> >
>> > systems : system commands are enabled
>> > system : module pre-17 not found
>> > ! Undefined control sequence.
>> > <recently read> \TitlePage
>> >
>> > l.2 \TitlePage
>> > {Hello World!}
>> > ? >Exit code: -1073741510
>> >
>> >
>> > May
>> >
>> >
>> >
>> > On 5/4/07, Hans Hagen < pragma@wxs.nl> wrote:
>> >
>> > > Lingyun Yang wrote:
>> > > > Can anyone help me with this kind of document ?
>> > > >
>> > > > http://www.pragma-ade.com/present/talks/pre-mml.pdf
>> > > >
>> > > > Which module does it use ? Is there anyway I can find its example
>> > > tex
>> > > > code ?
>> > > > I tried google, but didn't find much information.
>> > > > Thanks.
>> > > \usemodule[pre-17,mathml]
>> > >
>> > >
>> > > -----------------------------------------------------------------
>> > > Hans Hagen | PRAGMA ADE
>> > > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>> > > tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
>> > > | www.pragma-pod.nl
>> > > -----------------------------------------------------------------
>> > >
>> > >
>> ___________________________________________________________________________________
>>
>> > >
>> > > If your question is of interest to others as well, please add an
>> entry
>> > > to the Wiki!
>> > >
>> > > maillist : ntg-context@ntg.nl /
>> > > http://www.ntg.nl/mailman/listinfo/ntg-context
>> > > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
>> > > archive : https://foundry.supelec.fr/projects/contextrev/
>> > > wiki : http://contextgarden.net
>> > >
>> ___________________________________________________________________________________
>>
>> > >
>> > >
>> >
>> >
>> >
>> >
>> ___________________________________________________________________________________
>>
>> > If your question is of interest to others as well, please add an entry
>> > to the Wiki!
>> >
>> > maillist : ntg-context@ntg.nl /
>> > http://www.ntg.nl/mailman/listinfo/ntg-context
>> > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
>> > archive : https://foundry.supelec.fr/projects/contextrev/
>> > wiki : http://contextgarden.net
>> >
>> ___________________________________________________________________________________
>>
>> >
>> >
>> >
>>
>>
>> --
>> Best Regards
>> Chen
>> ----------------------------------------------------------------
>>
>> Zhi-chu Chen | Shanghai Synchrotron Radiation Facility
>> No. 2019 | Jialuo Rd. | Jiading | Shanghai | P.R. China
>> tel: 086 21 5955 3405 | zhichu.chen.googlepages.com
>> | www.sinap.ac.cn
>> ----------------------------------------------------------------
>>
>> ___________________________________________________________________________________
>>
>> If your question is of interest to others as well, please add an
>> entry to
>> the Wiki!
>>
>> maillist : ntg-context@ntg.nl /
>> http://www.ntg.nl/mailman/listinfo/ntg-context
>> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
>> archive : https://foundry.supelec.fr/projects/contextrev/
>> wiki : http://contextgarden.net
>>
>> ___________________________________________________________________________________
>>
>>
>>
>
> ------------------------------------------------------------------------
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive : https://foundry.supelec.fr/projects/contextrev/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
>
--
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
| www.pragma-pod.nl
-----------------------------------------------------------------
[-- Attachment #2: s-pre-17.tex --]
[-- Type: text/x-tex, Size: 10877 bytes --]
%D \module
%D [ file=s-pre-17,
%D version=1999.08.20,
%D title=\CONTEXT\ Style File,
%D subtitle=Presentation Environment 17,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\setupbodyfont
[12pt,ss]
\setupcolors
[state=start]
\setupsystem
[random=medium]
\setupbackgrounds
[state=repeat]
\setupbackgrounds
[page]
[background={page,forward}]
\setupbackgrounds
[text][text]
[background=blowup]
\setupinteraction
[state=start,
%click=off,
color=TitleColor,
contrastcolor=TitleColor]
\setupinteractionscreen
[option=max]
\setuptolerance
[verytolerant,stretch]
\definecolor [BackColor] [s=.30]
\definecolor [PageColor] [g=1]
\definecolor [FrameColor] [r=1]
\definecolor [TitleColor] [y=1]
\definecolor [ArrowColor] [b=1]
\defineoverlay [title] [\useMPgraphic{title}]
\defineoverlay [page] [\useMPgraphic{page}]
\defineoverlay [blowup] [\overlaybutton{page(\realfolio)}]
\defineoverlay [forward] [\overlaybutton{forward}]
\startMPpositiongraphic{mppos:connection}
path pa, pb, pc ; pair ca, cb ;
initialize_box(\MPpos{\MPvar{self}}) ; pa := pxy ; ca := cxy ;
initialize_box(\MPpos{\MPvar{prev}}) ; pb := pxy ; cb := cxy ;
pickup pencircle scaled .5pt ;
pa := pa enlarged 10pt ;
pb := pb enlarged 10pt ;
for i=1 upto 10 :
draw pa randomized 20pt withcolor \MPcolor{FrameColor} ;
endfor ;
if \MPp{\MPvar{prev}}>0 :
pair a, b, c, d ;
for i=1 upto 25 :
a := .5[ulcorner pa,urcorner pa] randomized (10pt,10pt) ;
b := .5[llcorner pb,lrcorner pb] randomized (20pt,10pt) ;
c := .5[a,b] rotatedaround(a,-25) randomized (5pt,5pt) ;
d := .5[a,b] rotatedaround(a,+25) randomized (5pt,5pt) ;
draw (a--b) withcolor \MPcolor{ArrowColor} ;
draw (d--a--c) withcolor \MPcolor{ArrowColor} ;
endfor ;
fi ;
anchor_box(\MPanchor{\MPvar{self}}) ;
\stopMPpositiongraphic
\startuseMPgraphic{title}
pickup pencircle scaled .5pt ;
for i=1 upto 10 :
draw
fullsquare xyscaled(OverlayWidth,OverlayHeight)
enlarged 10pt randomized 20pt
withcolor \MPcolor{TitleColor} ;
endfor ;
\stopuseMPgraphic
\startuseMPgraphic{page}
StartPage ;
pickup pencircle scaled .5pt ;
fill Page withcolor \MPcolor{BackColor} ;
for i=1 upto 20 :
draw Page enlarged -50pt randomized 50pt withcolor \MPcolor{PageColor} ;
endfor ;
StopPage ;
\stopuseMPgraphic
\def\StartText%
{\bgroup
\getrandomdimen\scratchdimen{250pt}{350pt}%
\edef\TextWidth{\the\scratchdimen}%
\setbox\scratchbox=\hbox\bgroup
\hsize\TextWidth
\setupframedtexts
[before=,after=,
width=fit,align=right, % normal,
frame=off,foregroundcolor=white]%
\framedtext\bgroup}
\def\BlowX{450pt} % \def\BlowX{600pt}
\def\BlowY{300pt} % \def\BlowY{450pt}
\def\BlowV {50pt} % \def\BlowV{100pt}
\def\BlowH {75pt} % \def\BlowH{100pt}
\def\BackO {50pt} % \def\BackO {50pt}
\def\StopText%
{\egroup\egroup
\doglobal\increment\CurrentBlaBla
\let\PrevBlaBla\CurrentBlaBla \doglobal\decrement\PrevBlaBla
\let\NextBlaBla\CurrentBlaBla \doglobal\increment\NextBlaBla
\setMPpositiongraphic
{connection:\CurrentBlaBla}%
{mppos:connection}%
{seed=\CurrentBlaBla,
prev=connection:\PrevBlaBla,
next=connection:\NextBlaBla}%
\SetBlowUp{connection:\CurrentBlaBla}\BlowX\BlowY\BlowH\BlowV
\hbox to 600pt
% {\getrandomdimen\scratchdimen{50pt}{100pt}%
{\getrandomdimen\scratchdimen{50pt}{75pt}%
\hskip0pt plus \scratchdimen minus \scratchdimen
\hpos{connection:\CurrentBlaBla}%
{\framed
[frame=off,
offset=overlay,
backgroundoffset=\BackO,
background=blowup]
{\box\scratchbox}}%
% \getrandomdimen\scratchdimen{50pt}{100pt}%
\getrandomdimen\scratchdimen{50pt}{75pt}%
\hskip0pt plus \scratchdimen minus \scratchdimen}%
% \getrandomdimen\scratchdimen{100pt}{150pt}%
\getrandomdimen\scratchdimen{75pt}{125pt}%
\vskip\scratchdimen
\egroup}
\def\xStartText
{\bgroup
\setbox\scratchbox=\hbox\bgroup
\framed
[frame=off,foregroundcolor=white]
\bgroup}
\def\xStopText{\StopText}
\f
\overcomePDFpagefalse
\def\SetBlowUp#1#2#3#4#5% tag width height hoffset voffset
{\scratchdimen=\MPw{#1}%
\advance\scratchdimen-#2 %
\divide\scratchdimen by 2
\advance\scratchdimen by \MPx{#1}\relax
\ifdim\scratchdimen<0pt \scratchdimen=0pt \fi
\ScaledPointsToBigPoints{\number\scratchdimen}\TextX
\advance\scratchdimen by #2 %
\ScaledPointsToBigPoints{\number\scratchdimen}\TextW
%
\scratchdimen=\MPh{#1}%
\advance\scratchdimen-#3 %
\divide\scratchdimen by 2
\advance\scratchdimen\MPy{#1}\relax
\ifdim\scratchdimen<0pt \scratchdimen=0pt \fi
\ScaledPointsToBigPoints{\number\scratchdimen}\TextY
\advance\scratchdimen by #3
\ScaledPointsToBigPoints{\number\scratchdimen}\TextH
%
\def\PDFpageviewkey{ fitr \TextX\space\TextY\space\TextW\space\TextH}%
\def\PDFpageviewwrd{ /FitR \TextX\space\TextY\space\TextW\space\TextH}%
\edef\PDFpageview{/View [\PDFpageviewwrd]}}
\f
\def\xSetBlowUp#1#2#3#4#5% tag width height hoffset voffset
{\scratchdimen\MPx{#1}\relax
\ifdim\scratchdimen<#4
\ScaledPointsToBigPoints{0}\TextX
\multiply\scratchdimen 2
\else
\advance\scratchdimen-#4
\ScaledPointsToBigPoints{\number\scratchdimen}\TextX
\advance\scratchdimen#4
\advance\scratchdimen#4
\fi
\advance\scratchdimen\MPw{#1}%
\ScaledPointsToBigPoints{\number\scratchdimen}\TextW
%
\scratchdimen\MPy{#1}\relax
\ifdim\scratchdimen<#5
\ScaledPointsToBigPoints{0}\TextY
\multiply\scratchdimen 2
\else
\advance\scratchdimen-#5
\ScaledPointsToBigPoints{\number\scratchdimen}\TextY
\advance\scratchdimen#5
\advance\scratchdimen#5
\fi
\advance\scratchdimen\MPh{#1}%
\ScaledPointsToBigPoints{\number\scratchdimen}\TextH
%
\def\PDFpageviewkey{ fitr \TextX\space\TextY\space\TextW\space\TextH}%
\def\PDFpageviewwrd{ /FitR \TextX\space\TextY\space\TextW\space\TextH}%
\edef\PDFpageview{/View [\PDFpageviewwrd]}}
\f
\dontcomplain
\def\StartPage#1%
{\doStartPage{1}{#1}}
\def\doStartPage#1#2%
{\def\StopPage{\doStopPage{#1}{#2}}%
\setbox\scratchbox=\hbox\bgroup
\valign\bgroup\ignorespaces##\vss\cr}
\def\doStopPage#1#2%
{\cr
\egroup
\egroup
\setbox\scratchbox=\vbox
{\vskip100pt
\hbox \ifcase#1 spread 200pt \else to \wd\scratchbox \fi
{\hss
\switchtobodyfont[big]%
\bfd\setupinterlinespace
\ifcase#1\else \SetBlowUp{title:\realfolio}\BlowX\BlowY\BlowH\BlowV \fi
\hpos{title:\realfolio}
{\framed
[frame=off,align=middle,
foregroundcolor=white,
background={title,blowup}]
{#2}}%
\hss}
\vskip100pt
\box\scratchbox}
\doFlushPage}
\def\doFlushPage
{\scratchdimen=\ht\scratchbox
\advance\scratchdimen \dp\scratchbox
\advance\scratchdimen 100pt
\edef\height{\the\scratchdimen}
\scratchdimen=\wd\scratchbox
\advance\scratchdimen 100pt
\edef\width {\the\scratchdimen}
\expanded{\definepapersize[MASTER][width=\width,height=\height]}
\setuppapersize
[MASTER][MASTER]
\setuplayout
[topspace=25pt,backspace=25pt,
width=middle,header=0pt,footer=0pt,height=middle]
\centerbox{\box\scratchbox}
\page}
\def\StartTopic#1%
{\unskip\unskip\cr
\doglobal\increment(\CurrentBlaBla,100)%
\vbox\bgroup
\vskip100pt
\bgroup
\definecolor[FrameColor][TitleColor]
\switchtobodyfont[big]
\bfd\setupinterlinespace
\xStartText#1\xStopText
\vskip25pt
\egroup}
\def\StopTopic%
{\vskip-\lastskip
\vskip100pt
\egroup
\ignorespaces}
\def\TitlePage#1%
{\doStartPage{0}{\def\\{\vskip1ex\bfc\def\\{\vskip1ex\bfb}}#1}
\StopPage}
\f
\doifnotmode{demo}{\endinput}
\setupoutput[pdftex]
\starttext
\TitlePage{About Text\\Today's Talk\\Hans Hagen}
\StartPage{The First Page}
\StartTopic{Some Text}
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StartText \input knuth \StopText
\StopTopic
\StartTopic{Another Text}
\StartText \input tufte \StopText
\StartText \input zapf \StopText
\StartText \input knuth \StopText
\StopTopic
\StartTopic{Some More Text}
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StartText \input tufte \StopText
\StopTopic
\StartTopic{Some Text Agian}
\StartText \input tufte \StopText
\StartText \input zapf \StopText
\StartText \input knuth \StopText
\StartText \input tufte \StopText
\StopTopic
\StopPage
\StartPage{The Second Page}
\StartTopic{Some Text}
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StopTopic
\StartTopic{Another Text}
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StopTopic
\StartTopic{Some Nice Text}
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StartText \input tufte \StopText
\StartText \input tufte \StopText
\StopTopic
\StartTopic{Some Funny Text}
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StopTopic
\StartTopic{Quite Some Text}
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StopTopic
\StartTopic{Even More Text}
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StopTopic
\StopPage
\StartPage{The Third Page}
\StartTopic{Some Short Text}
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StopTopic
\StartTopic{Some Minimal Text}
\StartText \input tufte \StopText
\StartText \input zapf \StopText
\StopTopic
\StartTopic{Some More Text}
\StartText \input tufte \StopText
\StartText \input knuth \StopText
\StartText \input zapf \StopText
\StartText \input tufte \StopText
\StartText \input tufte \StopText
\StopTopic
\StopPage
\stoptext
[-- Attachment #3: pre-mml.tex --]
[-- Type: text/x-tex, Size: 7468 bytes --]
% output=pdftex
\setupbodyfont[lbr]
\usemodule[pre-17,mathml]
%\definecolor[BackColor][s=1]
%\definecolor[white] [s=0]
\setupbodyfont[17.3pt,ss] \setuptyping[bodyfont=12pt]
\useexternaldocument [manual] [t:/manuals/xml/mmlprime]
\useexternaldocument [suite] [t:/manuals/xml/mmlexamp]
\useurl [site] [http://www.pragma-ade.com]
\useurl [site] [http://200.1.1.25/codindex.htm]
\starttext
\TitlePage{Welcome to MathML\\how to present your math content\\Hans Hagen}
\StartPage{Introduction}
\StartTopic{What is \TeX}
\StartText
\TeX\ is a general purpose typographic (macro)
programming language.
\StopText
\StartText
\TeX\ has a pretty good reputation for typesetting
(complicated) math formulas.
\StopText
\StartText
\TeX\ uses \type {\}'s and \type {$}'s and other funny
characters to signal special actions.
\StopText
\StartText
\TeX\ is almost 20 years old, and that's makes its users a
weird species.
\StopText
\StartText
Although \TeX\ can be used to make beautiful documents,
it is (no longer) a first choice for typesetting jobs.
\StopText
\StartText
Many \TeX\ documents sources look awful.
\StopText
\StopTopic
\StartTopic{What is XML}
\StartText
XML is a language for coding all kind of documents.
\StopText
\StartText
XML looks like HTML and thereby it is pretty hip and
popular.
\StopText
\StartText
XML is based on SGML and thereby also quite old.
\StopText
\StartText
XML also uses funny characters, like \type {<}, \type {>},
and \type {&}, but can look quite structured (apart from
other funny characters).
\StopText
\StartText
Thanks to some good public relations, XML is now seen as
the ultimate solution for coding documents.
\StopText
\StopTopic
\StartTopic{Math in \TeX}
\StartText
In \TeX\ you enter math in a rather natural flow.
\StopText
\StartText
\TeX\ permits you to optimize the visual appearance of a
formula.
\StopText
\StartText
It's non||trivial to make a document consistent,
especially when more authors are involved.
\StopText
\StartText
For simple formulas, coding in \TeX\ is fast.
\StopText
\StopTopic
\StartTopic{Math in XML}
\StartText
Coding math in XML is more verbose than in \TeX, and is
called MathML.
\StopText
\StartText
You can code in either presentational, or in content
MathML.
\StopText
\StartText
In presentational markup, you compose a formula of its
base typographic components.
\StopText
\StartText
In content markup, you define a formula in terms of what
it means (represents).
\StopText
\StartText
Coding in presentational markup is not so much different
from coding in \TeX, although it's more strict and verbose.
\StopText
\StartText
Coding in content markup is less flexible, but more
promising from the point of view of reusing information
and consistent typography.
\StopText
\StopTopic
\StopPage
\f
\StartPage{Exploration}
\StartTopic{Presentational Markup}
\StartText
You can summarize presentational markup as: what
you key is what you get.
\StopText
\StartText
\startbuffer
<math>
<mrow>
<mi>x</mi> <mo>=</mo> <mn>1</mn>
</mrow>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StartText
\startbuffer
<math>
<mrow>
<mi>x</mi> <mo>≤</mo> <mn>1</mn>
</mrow>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StartText
\startbuffer
<math>
<mrow>
<mi>sin</mi> <mo>⁡</mo>
<msup> <mi>x</mi> <mn>2</mn> </msup>
</mrow>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StartText
\startbuffer
<math>
<msup>
<mfenced> <mi>sin</mi> <mi>x</mi> </mfenced>
<mn>2</mn>
</msup>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StopTopic
\StartTopic{Content Markup}
\StartText
You can summarize content markup as: you get
typeset what you think.
\StopText
\StartText
\startbuffer
<math>
<apply> <eq/>
<ci>x</ci> <cn>1</cn>
</apply>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StartText
\startbuffer
<math>
<apply> <leq/>
<ci>x</ci> <cn>1</cn>
</apply>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StartText
\startbuffer
<math>
<apply> <sin/>
<apply> <power/>
<ci>x</ci> <cn>2</cn>
</apply>
</apply>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StartText
\startbuffer
<math>
<apply> <power/>
<apply> <sin/> <ci>x</ci> </apply>
<cn>2</cn>
</apply>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StopTopic
\StartTopic{Mixed Markup}
\StartText
Occasionally (or for some frequently) MathML is not rich
enough. In that case you add \TeX\ code to your formula.
\StopText
\StartText
\startbuffer
<math>
<semantics>
<apply> <eq/>
<ci> x </ci> <cn> 5 </cn>
</apply>
<annotation encoding="TeX">
x_i = 5
</annotation>
</semantics>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StartText
As an alternative, you can (mildly) enhance a formula
marked up in content MathML with presentational elements.
\StopText
\StartText
\startbuffer
<math>
<apply> <eq/>
<ci> <msub> <mi>x</mi> <mn>1</mn> </msub> </ci>
<cn> 5 </cn>
</apply>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StopTopic
\StartTopic{Processing Instruction}
\StartText
Given that the formulas are coded consistently, you can
influence the layout by providing local or global
processing instructions.
\StopText
\StartText
\startbuffer
<math>
<apply> <log/>
<logbase> <ci>7</ci> </logbase> <ci>x</ci>
</apply>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
\StopText
\StartText
\startbuffer
<math>
<?context-mathml-directive log location left?>
<apply> <log/>
<logbase> <ci>7</ci> </logbase> <ci>x</ci>
</apply>
</math>
\stopbuffer
\hbox{\hbox{\processXMLbuffer}} \typebuffer
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\StartTopic{MathML in \ConTeXt}
\StartText
In \ConTeXt, XML support is build into the kernel.
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\StartText
MathML support is supported by core \type {xtag} filters,
to be loaded at runtime.
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\StartText
You can embed MathML in normal \ConTeXt\ documents:
\starttyping
\startXMLdata <math> ... </math> \stopXMLdata
\XMLdata {<math> ... </math>}
\stoptyping
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\StartText
Such mixed documents can be converted to pure XML quite
easily, which provides a nice migration path.
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There will be much more layout options, as well as support
for units, chemistry, and complex formula building.
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\StartText
There is a \goto {MathML manual} [manual::], an \goto
{example suite} [suite::], and a \goto {experimentation
site} [site::]. And there will be more.
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\f
\StartTopic{Some observations}
\StartText
Presentational MathML is not that useful.
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Content MathML is not rich enough.
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For inline math we need something different.
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For presentational MathML we need editors with
restrictions.
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For content MathML we need conceptual editors.
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\StartText
So \unknown\ we're not yet there.
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