https://bugs.documentfoundation.org/show_bug.cgi?id=99984
Bug ID: 99984
Summary: inferred row rendered wrong for some empty elements
Product: LibreOffice
Version: 5.2.0.0.alpha0+ Master
Hardware: x86 (IA32)
URL: https://www.w3.org/TR/MathML2/chapter3.html#id.3.1.3.1
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Formula Editor
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: rb.hensc...@t-online.de
Created attachment 125216
--> https://bugs.documentfoundation.org/attachment.cgi?id=125216&action=edit
testfiles to see wrong rendering
Some MathML-elements require exactly one argument, but with the special rule,
that in case they have no argument, they are treated as if they have an empty
mrow element as content.
Such cases are rendered wrong for the elements: mphantom, msqrt, mstyle and
mtd.
The case mtd is severe, because empty table cells often occur, in case the
mtable element is used to arrange things.
I propose to import the empty case of inferred mrow as empty group {}.
The files xyz_missing.mml and xyz_exists.mml of the attached test files should
render the same.
Please make sure you use a current build from master, otherwise the files
mstyle_empty_mrow_missing.mml and msqrt_empty_mrow_missing.mml will crash.
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