>> sbmufl/mark_attachment
Check that SBMuFL mark codepoints are mark-classed and attached in GPOS.
with NeanesStathisSeries.otf
Rationale:
SBMuFL documents many notation signs as marks that should be positioned with OpenType mark attachment. These encoded signs should be
classified as marks in GDEF and included in GPOS mark attachment coverage so layout engines can attach them to their base signs.
More info: https://github.com/neanes/sbmufl
WARN SBMuFL mark codepoints not covered by GPOS Mark-to-Mark attachment:
- U+E216 barlineSingleAbove
- U+E21A barlineShortDoubleAbove [code: not-mark-to-mark]
Result: WARN
