[Libreoffice-bugs] [Bug 140679] Upside down question markers formula round trip DOCX

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=140679

V Stuart Foote <vstuart.foote at utsa.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |filter:ooxml
             Status|UNCONFIRMED                 |NEW
                 CC|                            |rb.henschel at t-online.de,
                   |                            |vstuart.foote at utsa.edu
           See Also|https://bugs.documentfounda |
                   |tion.org/show_bug.cgi?id=13 |
                   |4214                        |
            Summary|Upside down question        |Upside down question
                   |markers formula after DOCX  |markers formula round trip
                   |export                      |DOCX
          Component|Writer                      |Formula Editor
     Ever confirmed|0                           |1

--- Comment #5 from V Stuart Foote <vstuart.foote at utsa.edu> ---
This is not an OpenSymbol font issue. This is a filter issue (export to OOXML,
and/or import from OOXML).

The original chemical formula in LO7 StarMath is:

   nitalic{NH_3 + H_2 O %Ux21CC  NH_4^{+{}} + OH^{`-{}} }

In LO7 on roundtrip to OOXML (Word 2007-365):

   {NH} rsub {3} + {H} rsub {2} O ⇌ {NH} rsub {4} rsup {+} + {OH} ^ {  −}

Or, in LO7 on roundtrip to MS Word 97-2003 binary:

    size 12{"NH" rSub { size 8{3} } +H rSub { size 8{2} } O⇌"NH" rSub { size
8{4} }  rSup { size 8{+{}} } +"OH" rSup { size 8{` - {}} } } {}


The OOXML filtering has the issue, and because the chemical formula is not
rendered non-italic when opened in Word issue start with the ww8 export.

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