https://bugs.documentfoundation.org/show_bug.cgi?id=105934

            Bug ID: 105934
           Summary: Some Diacritic positioning with Graphite font not
                    working with LO 5.3
           Product: LibreOffice
           Version: 5.3.0.3 release
          Hardware: x86 (IA32)
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: [email protected]
          Reporter: [email protected]

Created attachment 131089
  --> https://bugs.documentfoundation.org/attachment.cgi?id=131089&action=edit
Doc with sample text containing diacritics

OS:Win XP

Diacritics are not positioned *at all* with LO 5.3 with the attached graphite
font; works ok when "TextLayoutEngine" is set to "old" in
Tools->Options->Advanced" : "Open expert config"

Set "TextLayoutEngine" to "old", close LO and open doc. Diacritic placement is
Placement is ok.

Set "TextLayoutEngine" to "old", close Lo and open doc. Diacritic placement
does not happen.

Obviously harbuzz is avoiding the 'base char" "diacritic" pair being
positioned. Perhaps this should not be happening considering ---

"In a Graphite font, all smart rendering information resides within the font
file. In order to display the Graphite smart rendering, an application needs
only Graphite support, but no built-in knowledge about the writing system’s
rendering. This makes Graphite especially suited for minority writing systems
that cannot rely on applications to provide built-in rendering information. In
this regard, Graphite is similar to AAT and different from OpenType which
requires applications to provide built-in rendering information."

Regards
Venkatesh

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