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Fix class2defs self overlapping glyphsets

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This commit is contained in:
Martin Hosken 2020-12-01 23:38:12 +07:00
parent 47c85d9afa
commit 75f314b149
1 changed files with 3 additions and 1 deletions
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4
Lib/fontTools/otlLib/builder.py
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@ -2558,11 +2558,13 @@ class ClassDefBuilder(object):
if isinstance(glyphs, (set, frozenset)): if isinstance(glyphs, (set, frozenset)):
glyphs = sorted(glyphs) glyphs = sorted(glyphs)
glyphs = tuple(glyphs) glyphs = tuple(glyphs)
tempglyphs = set()
if glyphs in self.classes_: if glyphs in self.classes_:
return True return True
for glyph in glyphs: for glyph in glyphs:
if glyph in self.glyphs_: if glyph in self.glyphs_ or glyph in tempglyphs:
return False return False
tempglyphs.add(glyph)
return True return True
def add(self, glyphs): def add(self, glyphs):