features: Do not include empty labels

googlefonts · Jan 9, 2024 · cb523a5 · cb523a5
1 parent ac74ae0
commit cb523a5
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/Lib/glyphsLib/builder/features.py b/Lib/glyphsLib/builder/features.py
@@ -138,7 +138,11 @@ def _to_ufo_features(
                     # Replace special chars backslash and doublequote for AFDKO syntax
                     name = name.replace("\\", r"\005c").replace('"', r"\0022")
                     feature_names = ["featureNames {", f'  name "{name}";', "};"]
-        elif font.format_version == 3 and feature.labels:
+        elif (
+            font.format_version == 3
+            and feature.labels
+            and all(l["value"] != "" for l in feature.labels)
+        ):
             feature_names = []
             feature_names.append("featureNames {")
             for label in feature.labels: