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[ttLib] Add Value.getEffectiveFormat()

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This ignores 0/None values that don't need to be encoded.
This commit is contained in:
Behdad Esfahbod 2021-04-21 14:10:27 -06:00
parent 8ab6af03c8
commit 830cff6253
1 changed files with 7 additions and 0 deletions
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7
Lib/fontTools/ttLib/tables/otBase.py
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@ -970,6 +970,13 @@ class ValueRecord(object):
format = format | valueRecordFormatDict[name][0] format = format | valueRecordFormatDict[name][0]
return format return format
def getEffectiveFormat(self):
format = 0
for name,value in self.__dict__.items():
if value:
format = format | valueRecordFormatDict[name][0]
return format
def toXML(self, xmlWriter, font, valueName, attrs=None): def toXML(self, xmlWriter, font, valueName, attrs=None):
if attrs is None: if attrs is None:
simpleItems = [] simpleItems = []