https://bugzilla.wikimedia.org/show_bug.cgi?id=51381
Web browser: ---
Bug ID: 51381
Summary: Allow semantic description of <math> formula
Product: MediaWiki extensions
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: Unprioritized
Component: Math
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Classification: Unclassified
Mobile Platform: ---
On bug 36496 physikerwelt writes:
I think it is really important to have a stable, secure, and long term
supported way of math rendering.
As I'm working on integrating LaTeXML a rendering engine that converts tex to
MathML I was running into a couple of issues.
First, Wikipedia uses texvc and not tex, therefore I had to create a list of
special user defined commands. MathJax has this list as well.
To my mind it's a suboptiomal solution especially with regard to long term
support. I propose to come up with a grammar that can be used by a wide
audience (e.g. antlr) and convert that into native php code. This grammar
converts texvc to tex and eliminates all commands that are not allowed.
Second, there are some security aspects, i.e. that someone could put code that
is a potential security risk for the visitors. Texvc eliminates this security
risk by returning pictures only. On the other side as texvc is a
potential security risk for the server, since the rendering must take place on
the same machine as the core server works.
LaTeXML can use a separate server, but if there is an attack to the network the
traffic could be redirected to another server. Therefore the output of LaTeXML
must be checked again before returning it to the users browser.
If the users browser supports mathml only bugs in the browsers mathml
implementation can be a security risk. If not MathJaX is needed to convert
MathML to whatever, which comes along with all the Javascript issues.
As a result I think that it would be good to seperate the tasks somehow.
The Wikimedia Math extension php code should convert texvc to tex and ensure
that only valid tex is passed to the rendering engine.
Than a standard rendering engine can be used and the final result can be
validated according to standard methods. e.g. validate MathML out against the
W3C MathML scheme.
In summer 2012 I proposed the LaTeXML render at CICM 2012, now it's avalible as
opt-in[1].
[1] http://arxiv.org/abs/1304.5475
PS: There is a demo at
http://demo.formulasearchengine.com
you can click on
http://demo.formulasearchengine.com/index.php/Special:Random
to get a random page of the english wikipedia... the pages are not cached so it
might take about 20 seconds, especially if images has to be loaded from commons
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