[Libreoffice-bugs] [Bug 48645] New: FORMATTING: alignr, alignl operators distort fraction representation

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=48645

             Bug #: 48645
           Summary: FORMATTING: alignr, alignl operators distort fraction
                    representation
    Classification: Unclassified
           Product: LibreOffice
           Version: LibO 3.3.1 release
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
 Status Whiteboard: BSA
          Severity: normal
          Priority: medium
         Component: Formula Editor
        AssignedTo: libreoffice-bugs at lists.freedesktop.org
        ReportedBy: Yakov.Litvin.publicly at gmail.com


Problem description: 

In systems of equations, it is usually desirable to align all the equations to
the left. For instance, for this one:

left lbrace stack{
 {{dot d}_n over{n-2}} = ...
#
 longer expression
}right none

it is desirable to move the first line to the left. However, if one uses alignl
"operator", he couldn't get the desirable result, because the fraction {dot
d}_n over{n-2} gets distorted.

Steps to reproduce:
1. try

left lbrace stack{
 alignl {{dot d}_n over{n-2}}
#
 alignl
........................................................................
}right none

in this case, dot d_n in the fraction is moved to the left in the numerator
which I consider as a bug.

2. To avoid this I tried

left lbrace stack{
 alignl {alignc {dot d}_n over{n-2}}
#
 alignl
........................................................................
}right none

but instead of just making numerator normal, this makes the whole expression
aligned to the center.

Current behavior:

already described.

Expected behavior:

alignl, alignr shouldn't change the numerator at all, just never in math
expressions numerator is aligned to the left or right, always to the center.

Platform (if different from the browser): 

Browser: Opera/9.80 (Windows NT 6.0; U; ru) Presto/2.10.229 Version/11.61

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