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[varLib] Implement mapping tail optimization

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This commit is contained in:
Behdad Esfahbod 2016-08-11 21:42:31 -07:00
parent 687c2c1812
commit 76ce34b06c
1 changed files with 2 additions and 0 deletions
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2
Lib/fontTools/varLib/__init__.py
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@ -497,6 +497,8 @@ def _add_HVAR(font, model, master_ttfs, axes):
newItems = sorted(uniq) newItems = sorted(uniq)
mapper = {v:i for i,v in enumerate(newItems)} mapper = {v:i for i,v in enumerate(newItems)}
mapping = [mapper[item] for item in items] mapping = [mapper[item] for item in items]
while len(mapping) > 1 and mapping[-1] == mapping[-2]:
del mapping[-1]
advanceMapping = builder.buildVarIdxMap(mapping) advanceMapping = builder.buildVarIdxMap(mapping)
items = newItems items = newItems
del mapper, mapping, newItems del mapper, mapping, newItems