From: Bernhard Keil <Bernhard.Keil@soft4science.com>

Date: Mon, 5 May 2003 21:34:28 +0200

To: "Robert Miner" <RobertM@dessci.com>, <www-math@w3.org>

Message-ID: <IIEOKCCPKDALHBHODAENGEDPCGAA.Bernhard.Keil@soft4science.com>

Date: Mon, 5 May 2003 21:34:28 +0200

To: "Robert Miner" <RobertM@dessci.com>, <www-math@w3.org>

Message-ID: <IIEOKCCPKDALHBHODAENGEDPCGAA.Bernhard.Keil@soft4science.com>

Like Robert has stated, it is not possible to convert presentation markup to content markup in general. In simple cases a heuristic approach can lead to the right result, but this is far away from a general solution that can be used without human interaction. A presentation markup like this: <math xmlns="http://www.w3.org/1998/Math/MathML"> <msup> <msub> <mi>σ</mi> <mi>x</mi> </msub> <mn>2</mn> </msup> </math> can only be converted to the following content markup: <math display="block" xmlns="http://www.w3.org/1998/Math/MathML"> <moapply> <variance/> <ci> X </ci> </apply> </math> by phoning the author and asking him whether this is what he has mentioned. Bernhard Keil mailto:Bernhard.Keil@soft4science.com ------------------------------------------------------------- soft4science Bernhard Keil Nibelungenstr. 4 80639 Munich Germany +49 89 / 95 411 088 http://www.soft4science.com +49 173 / 72 53 669 http://www.MathML.net -----Original Message----- From: www-math-request@w3.org [mailto:www-math-request@w3.org]On Behalf Of Robert Miner Sent: Monday, May 05, 2003 7:26 PM To: www-math@w3.org Subject: Re: MathML Presentation to content transformation Hi. Max Froumentin wrote: > benoît encelle <encelle@irit.fr> wrote: > > > i am looking for transformation tools that convert MathML > > Presentation markup expressions to MathML Content markup expressions > > As part of the Universal MathML stylesheet, David Carlisle has > an XSLT transform to do just that. The stylesheet is at > > http://www.w3.org/Math/XSL/ctop.xsl > > and more information is at > > http://www.w3.org/Math/XSL/Overview-tech.html > > Feel free to ask further questions on this list. I think you've got the direction backwards Max. The stylesheet only does content -> presentation, and not presentation -> content, which is much harder, and not possible in full generality, of course. The only systems I know that attempt the hard direction are Maple, Mathematica and the WebEQ Developer Suite tools. None of these is easily scriptable, for a batch process, say, though the next version of the WebEQ tools will have more facilities in this direction. --Robert ------------------------------------------------------------------ Dr. Robert Miner RobertM@dessci.com MathML 2.0 Specification Co-editor 651-223-2883 Design Science, Inc. "How Science Communicates" www.dessci.com ------------------------------------------------------------------Received on Monday, 5 May 2003 15:34:38 GMT

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