Hi all, Last December, Alex wrote an announcement about some refactoring of the MathML layout code [1]. We slightly deviated from the plan proposed there: the two separate steps (Remove FlexBox dependency without changing the RenderTree structure and then Refactor the RenderTree structure) are now expected to be done in a single phase. We also added more phases: Adding support for important MathML features and OpenType MATH properties ; and Moving all parsing of MathML attributes from renderer classes to element classes.
You can get a detailed explanations and status on the trac wiki [2]. As you can see we have already merged many patches of phase 1 and we are close to make MathML independent from flexbox. We would definitely welcome any help to complete that work as soon as possible... So if some of you have time to review these patches or at least provide feedback, that would be much appreciated! Note that this refactoring mainly focuses on code quality so that it is easier to maintain and to add future improvements. However, if you are curious about how mathematical formulas will look like after the refactoring, see [3] for a screenshot of Mozilla's MathML torture test [4] in Safari, using the Latin Modern Math font [5]. Thanks, Frédéric Wang [1] https://lists.webkit.org/pipermail/webkit-dev/2015-December/027840.html [2] http://trac.webkit.org/wiki/MathML/Early_2016_Refactoring [3] http://people.igalia.com/fwang/images/mac-webkitrefactored-latinmodernmath.png [4] https://developer.mozilla.org/en-US/docs/Mozilla/MathML_Project/MathML_Torture_Test [5] The importance of fonts for math rendering has already been discussed in a previous thread. See http://trac.webkit.org/wiki/MathML/Fonts for the latest update.
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