Well... Harfbuzz will be the only one behaving that way then... That font is rendered fine by Adobe, Microsoft, LibreOffice, ... and fontforge as well as ttx/fontTools gives a negative advance width... I guess this doesn't push fixing the font ;-)
Olivier 2013/6/6 Behdad Esfahbod <[email protected]> > Hi Olivier, > > Thanks for the report. I'm hesitant to make HarfBuzz return negative > advance > values as that can confuse downstream users. If this doesn't prove to be a > major issue, I think we should ignore it for now. > > behdad > > On 13-06-01 05:40 PM, Olivier Berten wrote: > > Hi! > > > > Although it isn't complying with the TrueType/OpenType specifications, > > some fonts have some glyphs with negative advance width. > > > > Advance width (in htmx) is defined as USHORT/uint16 but it seems > > everybody else reads it as SHORT/int16. > > > > In the attached font, glyph "uni17b7" (khmer character ិ) has a > > negative advance width. You can try it with the string និងសមភាព > > > > I wouldn't call this a bug in harfbuzz since it's a font bug but for > > compatibility reasons, it might be useful to change it... > > > > Olivier > > > > > > > > _______________________________________________ > > HarfBuzz mailing list > > [email protected] > > http://lists.freedesktop.org/mailman/listinfo/harfbuzz > > > > -- > behdad > http://behdad.org/ >
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