Merge pull request #859 from googlefonts/filter-marks-sparse

Support sparse masters in kernFeatureWriter
googlefonts · Jul 29, 2024 · 7509559 · 7509559
2 parents 96eb7f2 + 6029054
commit 7509559
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/Lib/ufo2ft/featureWriters/kernFeatureWriter.py b/Lib/ufo2ft/featureWriters/kernFeatureWriter.py
@@ -586,7 +586,9 @@ def _filterSpacingMarks(self, marks):
             spacing = []
             for mark in marks:
                 if all(
-                    source.font[mark].width != 0 for source in self.context.font.sources
+                    source.font[mark].width != 0
+                    for source in self.context.font.sources
+                    if mark in source.font
                 ):
                     spacing.append(mark)
             return spacing