MathML-ctop par Frédéric Wang, David carlisle

Converter from content MathML to presentation MathML

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À propos de cette extension

The MathML Recommendation offers two flavors of markup: presentation MathML which describes the visual rendering of mathematical formulas and content MathML which encodes their meaning. While Gecko has supported the presentation flavor for a long time, the content flavor has not been implemented so far. David Carlisle, from the Math WG, has written an XSLT stylesheet to convert content MathML to presentation MathML. This add-on allows to render content MathML by applying this stylesheet to each <math> fragment on a page.

Compatibility: Gecko 10 or greater. The add-on may also work on older versions.

Licenses: The add-on code is licensed under MPL 2.0.

https://github.com/fred-wang/Mathzilla/tree/master/mathml-ctop
http://code.google.com/p/web-xslt/source/browse/trunk/ctop/ctop.xsl</math>

Commentaires du développeur

When enabled, this add-on will attach a nsIWebProgressListener to each browser window in order to track the state changes for its tabs. Each time a nsDOMContentLoaded event is raised, a function is executed to convert from content to presentation MathML. This latter flavor can then be rendered natively by Gecko.

If no <math> elements are present on the page, the conversion function will return immediately. Otherwise, an instance of nsIXSLTProcessor initilialized with David's ctop.xsl stylesheet is used to perform the conversion from content to presentation MathML. Note that the stylesheet is not applied to the whole HTML document but to each <math> element individually.

Be aware about these listeners and function calls on each page if performance is important for your browsing experience. The add-on uses only one single nsIXSLTProcessor object, initialized the first time it is necessary and kept during all the life time of the add-on. This is to avoid to create and destroy the object (which requires loading the XSLT stylesheet in a DOM tree) each time a conversion is necessary.</math></math>

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