[Libreoffice-bugs] [Bug 139210] Diacritical mark handling in Writer (may apply to other components)

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=139210

--- Comment #3 from V Stuart Foote <vstuart.foote at utsa.edu> ---
Created attachment 168705
  --> https://bugs.documentfoundation.org/attachment.cgi?id=168705&action=edit
LO master/7.2 hybrid PDF of Writer doc showing differences between U+0305 and
U+035e, "connect left or right" or default

Attaching a sample document (LO hybrid PDF with ODT embeded) showing combining
behavior of "connects on left and right" like U+0305, vs default U+035e

Study the subtle differences between the <Alt>+X conversions of the U+0305
"connects on left and right" spans, vs the default of U+035e.  

I did not poke at bi-directional behavior for RTL scripts--but assume they
reverse appropriately.

Also note how the Libertinus metrics correctly handle this Unicode function,
while Liberation Serif and Noto Sans do not, illustrating the font dependency
working with combining diacritics.

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