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ttFont: allow to build glyph order without post nor cmap, just maxp.numGlyphs

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could be useful to read in incomplete sfnt fonts e.g. containing only GPOS or GSUB tables
and a bare maxp table with the numGlyphs
This commit is contained in:
Cosimo Lupo 2018-05-06 15:24:16 +01:00
parent ae4472860f
commit ca92b172f5
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GPG Key ID: 59D54DB0C9976482
1 changed files with 13 additions and 9 deletions
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22
Lib/fontTools/ttLib/ttFont.py
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@ -493,7 +493,10 @@ class TTFont(object):
# glyphs (eg. ligatures or alternates) may not be reachable via cmap,
# this naming table will usually not cover all glyphs in the font.
# If the font has no Unicode cmap table, reversecmap will be empty.
reversecmap = self['cmap'].buildReversed()
if 'cmap' in self:
reversecmap = self['cmap'].buildReversed()
else:
reversecmap = {}
useCount = {}
for i in range(numGlyphs):
tempName = glyphOrder[i]
@ -507,14 +510,15 @@ class TTFont(object):
glyphName = "%s.alt%d" % (glyphName, numUses - 1)
glyphOrder[i] = glyphName
# Delete the temporary cmap table from the cache, so it can
# be parsed again with the right names.
del self.tables['cmap']
self.glyphOrder = glyphOrder
if cmapLoading:
# restore partially loaded cmap, so it can continue loading
# using the proper names.
self.tables['cmap'] = cmapLoading
if 'cmap' in self:
# Delete the temporary cmap table from the cache, so it can
# be parsed again with the right names.
del self.tables['cmap']
self.glyphOrder = glyphOrder
if cmapLoading:
# restore partially loaded cmap, so it can continue loading
# using the proper names.
self.tables['cmap'] = cmapLoading
@staticmethod
def _makeGlyphName(codepoint):