[Webkit-unassigned] [Bug 170272] Paint <mo> correctly.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Jan 1 00:44:56 PST 2018


https://bugs.webkit.org/show_bug.cgi?id=170272

--- Comment #35 from Frédéric Wang (:fredw) [back 03/01/2018] <fred.wang at free.fr> ---
Thanks for finishing the work on this Minsheng. Some quick comments:

- "<mo> is painted correctly" is vague. Can you provide more details in the bug summary and description? If I remember correctly the issue was that operator spacing was incorrect for horizontally stretched operators, because some centering was performed before? And also maybe because the logical width was incorrect too?

- Is <mo lspace="100px" rspace="100px"> a good case? It seems that it won't be affected by the old "centering" behavior? I guess you want to check a case where lspace != rspace e.g. <mo lspace="100px" and rspace="200px">?

- While we are here, maybe test the RTL case too with <math dir="rtl">?

- I would put some visible <mspace> elements before and after the <mo> operator, so that one can really see the operator spacing. Actually, you could use such <mspace> elements to indicate the reference 100px/200px widths.

- red/green is generally used to suggest failure/success, so the reference widths could have more neutral colors. See http://web-platform-tests.org/writing-tests/rendering.html

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