[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 #2 from ajlittoz <page74010-sf at yahoo.fr> ---
There may be some misunderstanding on my side.

When Unicode qualifies a combining mark "connects on left and right", does it
mean this is a connector between the marked base character and the next one? If
this is the case, should the connecting line be drawn centred on the "vertical
separation" between the glyphs? This also means that in presence of successive
characters with the "left & right connecting" overline a single continuous line
is drawn over the sequence.

With this reading, the present rendering is the right one.

This may also imply that a "connects on right"-only mark should leave a visible
break (offset at left) when several so marked characters are rendered with the
mark over the separation, potentially offering continuous rendering at right if
next character is combined with a "connects on right and left" or "connects on
left".

The paragraph in chapter 7.9 Combining Marks of the Unicode standard, p. 331,
paragraph "Underlining and Overlining" is not of great help. Nor is the annex
about character properties.

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