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Mark-to-base attachments sometimes don't work with omar-type fonts. #3

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saidwho12 opened this issue May 7, 2021 · 1 comment
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Mark-to-base attachments sometimes don't work with omar-type fonts. #3

saidwho12 opened this issue May 7, 2021 · 1 comment
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Mark-to-base attachments sometimes don't work when a GSUB lookup replaces a medial form glyph as an example with 2 or 3 glyphs. As an example a base, tanqeet (dotting) and a khatt (stroke) can replace a initial form glyph, afterwhich the GPOS mark-to-base lookup will naively pick the first previous base glyph to attempt to attach to, and obviously it will not find any valid attachment points. This is my best assessment for what is happening in this case, in some cases it finds the correct base, but it has no attachment points in the font itself, so this is because some GPOS lookups are not yet handled.

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@saidwho12 saidwho12 added the bug Something isn't working label May 7, 2021
@saidwho12 saidwho12 self-assigned this May 7, 2021
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No longer relevant, fixed with new architecture.

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