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Khaled Hosny wrote:
Anyway, it turned out that the issue is not specific to kerning nor
Arabic, but affects all horizontal glyph positioning in the ICU layout
path; the problem does not show on Windows nor with Graphite fonts and
of course not with con-CTL.

The X adjustment of glyph widths is simply ignored, and glyphs are drawn
stacked after each other baased on their original width, which results in
kerning being ignored as well as other forms of glyph positioning like
cursive anchors, however vertical glyph positions (in the Y access) are
OK.

Hi Khaled,

wow, many thanks for your detailed analysis - that's actually
usually the hardest part for most of the bugs. :)

I'll look into this early next week.

Cheers,

-- Thorsten

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