def test_buildSinglePos_ValueFormat0(self):
subtables = builder.buildSinglePos({"zero": builder.buildValue({})},
self.GLYPHMAP)
assert sum([getXML(t.toXML) for t in subtables], []) == [
'<SinglePos Format="1">',
" <Coverage>",
' <Glyph value="zero"/>',
" </Coverage>",
' <ValueFormat value="0"/>',
"</SinglePos>",
]
def test_buildSinglePos_ValueFormat0(self):
subtables = builder.buildSinglePos({
"zero": builder.buildValue({})
}, self.GLYPHMAP)
self.assertEqual(''.join([getXML(t.toXML) for t in subtables]),
'<SinglePos Format="1">'
' <Coverage>'
' <Glyph value="zero"/>'
' </Coverage>'
' <ValueFormat value="0"/>'
'</SinglePos>')
def test_buildSinglePos_ValueFormat0(self):
subtables = builder.buildSinglePos({
"zero": builder.buildValue({})
}, self.GLYPHMAP)
self.assertEqual(''.join([getXML(t.toXML) for t in subtables]),
'<SinglePos Format="1">'
' <Coverage>'
' <Glyph value="zero"/>'
' </Coverage>'
' <ValueFormat value="0"/>'
'</SinglePos>')
def test_buildSinglePos(self):
subtables = builder.buildSinglePos(
{
"one": builder.buildValue({"XPlacement": 500}),
"two": builder.buildValue({"XPlacement": 500}),
"three": builder.buildValue({"XPlacement": 200}),
"four": builder.buildValue({"XPlacement": 400}),
"five": builder.buildValue({"XPlacement": 500}),
"six": builder.buildValue({"YPlacement": -6}),
}, self.GLYPHMAP)
self.assertEqual(
''.join([getXML(t.toXML) for t in subtables]),
'<SinglePos Format="1">'
' <Coverage>'
' <Glyph value="one"/>'
' <Glyph value="two"/>'
' <Glyph value="five"/>'
' </Coverage>'
' <ValueFormat value="1"/>'
' <Value XPlacement="500"/>'
'</SinglePos>'
'<SinglePos Format="2">'
' <Coverage>'
' <Glyph value="three"/>'
' <Glyph value="four"/>'
' </Coverage>'
' <ValueFormat value="1"/>'
' <!-- ValueCount=2 -->'
' <Value index="0" XPlacement="200"/>'
' <Value index="1" XPlacement="400"/>'
'</SinglePos>'
'<SinglePos Format="1">'
' <Coverage>'
' <Glyph value="six"/>'
' </Coverage>'
' <ValueFormat value="2"/>'
' <Value YPlacement="-6"/>'
'</SinglePos>')
def test_buildSinglePos(self):
subtables = builder.buildSinglePos(
{
"one": builder.buildValue({"XPlacement": 500}),
"two": builder.buildValue({"XPlacement": 500}),
"three": builder.buildValue({"XPlacement": 200}),
"four": builder.buildValue({"XPlacement": 400}),
"five": builder.buildValue({"XPlacement": 500}),
"six": builder.buildValue({"YPlacement": -6}),
},
self.GLYPHMAP,
)
assert sum([getXML(t.toXML) for t in subtables], []) == [
'<SinglePos Format="2">',
" <Coverage>",
' <Glyph value="one"/>',
' <Glyph value="two"/>',
' <Glyph value="three"/>',
' <Glyph value="four"/>',
' <Glyph value="five"/>',
" </Coverage>",
' <ValueFormat value="1"/>',
" <!-- ValueCount=5 -->",
' <Value index="0" XPlacement="500"/>',
' <Value index="1" XPlacement="500"/>',
' <Value index="2" XPlacement="200"/>',
' <Value index="3" XPlacement="400"/>',
' <Value index="4" XPlacement="500"/>',
"</SinglePos>",
'<SinglePos Format="1">',
" <Coverage>",
' <Glyph value="six"/>',
" </Coverage>",
' <ValueFormat value="2"/>',
' <Value YPlacement="-6"/>',
"</SinglePos>",
]
def test_buildSinglePos(self):
subtables = builder.buildSinglePos({
"one": builder.buildValue({"XPlacement": 500}),
"two": builder.buildValue({"XPlacement": 500}),
"three": builder.buildValue({"XPlacement": 200}),
"four": builder.buildValue({"XPlacement": 400}),
"five": builder.buildValue({"XPlacement": 500}),
"six": builder.buildValue({"YPlacement": -6}),
}, self.GLYPHMAP)
self.assertEqual(''.join([getXML(t.toXML) for t in subtables]),
'<SinglePos Format="1">'
' <Coverage>'
' <Glyph value="one"/>'
' <Glyph value="two"/>'
' <Glyph value="five"/>'
' </Coverage>'
' <ValueFormat value="1"/>'
' <Value XPlacement="500"/>'
'</SinglePos>'
'<SinglePos Format="2">'
' <Coverage>'
' <Glyph value="three"/>'
' <Glyph value="four"/>'
' </Coverage>'
' <ValueFormat value="1"/>'
' <!-- ValueCount=2 -->'
' <Value index="0" XPlacement="200"/>'
' <Value index="1" XPlacement="400"/>'
'</SinglePos>'
'<SinglePos Format="1">'
' <Coverage>'
' <Glyph value="six"/>'
' </Coverage>'
' <ValueFormat value="2"/>'
' <Value YPlacement="-6"/>'
'</SinglePos>')
def merge(merger, self, lst):
subtables = merger.lookup_subtables = [l.SubTable for l in lst]
# Remove Extension subtables
for l, sts in list(zip(lst, subtables)) + [(self, self.SubTable)]:
if not sts:
continue
if sts[0].__class__.__name__.startswith('Extension'):
if not allEqual([st.__class__ for st in sts]):
raise InconsistentExtensions(
self,
expected="Extension",
got=[st.__class__.__name__ for st in sts])
if not allEqual([st.ExtensionLookupType for st in sts]):
raise InconsistentExtensions(self)
l.LookupType = sts[0].ExtensionLookupType
new_sts = [st.ExtSubTable for st in sts]
del sts[:]
sts.extend(new_sts)
isPairPos = self.SubTable and isinstance(self.SubTable[0], ot.PairPos)
if isPairPos:
# AFDKO and feaLib sometimes generate two Format1 subtables instead of one.
# Merge those before continuing.
# https://github.com/fonttools/fonttools/issues/719
self.SubTable = _Lookup_PairPos_subtables_canonicalize(
self.SubTable, merger.font)
subtables = merger.lookup_subtables = [
_Lookup_PairPos_subtables_canonicalize(st, merger.font)
for st in subtables
]
else:
isSinglePos = self.SubTable and isinstance(self.SubTable[0],
ot.SinglePos)
if isSinglePos:
numSubtables = [len(st) for st in subtables]
if not all([nums == numSubtables[0] for nums in numSubtables]):
# Flatten list of SinglePos subtables to single Format 2 subtable,
# with all value records set to the rec format type.
# We use buildSinglePos() to optimize the lookup after merging.
valueFormatList = [
t.ValueFormat for st in subtables for t in st
]
# Find the minimum value record that can accomodate all the singlePos subtables.
mirf = reduce(ior, valueFormatList)
self.SubTable = _Lookup_SinglePos_subtables_flatten(
self.SubTable, merger.font, mirf)
subtables = merger.lookup_subtables = [
_Lookup_SinglePos_subtables_flatten(st, merger.font, mirf)
for st in subtables
]
flattened = True
else:
flattened = False
merger.mergeLists(self.SubTable, subtables)
self.SubTableCount = len(self.SubTable)
if isPairPos:
# If format-1 subtable created during canonicalization is empty, remove it.
assert len(self.SubTable) >= 1 and self.SubTable[0].Format == 1
if not self.SubTable[0].Coverage.glyphs:
self.SubTable.pop(0)
self.SubTableCount -= 1
# If format-2 subtable created during canonicalization is empty, remove it.
assert len(self.SubTable) >= 1 and self.SubTable[-1].Format == 2
if not self.SubTable[-1].Coverage.glyphs:
self.SubTable.pop(-1)
self.SubTableCount -= 1
elif isSinglePos and flattened:
singlePosTable = self.SubTable[0]
glyphs = singlePosTable.Coverage.glyphs
# We know that singlePosTable is Format 2, as this is set
# in _Lookup_SinglePos_subtables_flatten.
singlePosMapping = {
gname: valRecord
for gname, valRecord in zip(glyphs, singlePosTable.Value)
}
self.SubTable = buildSinglePos(singlePosMapping,
merger.font.getReverseGlyphMap())
merger.mergeObjects(self, lst, exclude=['SubTable', 'SubTableCount'])
del merger.lookup_subtables
def build(self):
subtables = otl.buildSinglePos(self.mapping, self.glyphMap)
return self.buildLookup_(subtables)
def merge(merger, self, lst):
subtables = merger.lookup_subtables = [l.SubTable for l in lst]
# Remove Extension subtables
for l,sts in list(zip(lst,subtables))+[(self,self.SubTable)]:
if not sts:
continue
if sts[0].__class__.__name__.startswith('Extension'):
if not allEqual([st.__class__ for st in sts]):
raise InconsistentExtensions(
merger,
expected="Extension",
got=[st.__class__.__name__ for st in sts]
)
if not allEqual([st.ExtensionLookupType for st in sts]):
raise InconsistentExtensions(merger)
l.LookupType = sts[0].ExtensionLookupType
new_sts = [st.ExtSubTable for st in sts]
del sts[:]
sts.extend(new_sts)
isPairPos = self.SubTable and isinstance(self.SubTable[0], ot.PairPos)
if isPairPos:
# AFDKO and feaLib sometimes generate two Format1 subtables instead of one.
# Merge those before continuing.
# https://github.com/fonttools/fonttools/issues/719
self.SubTable = _Lookup_PairPos_subtables_canonicalize(self.SubTable, merger.font)
subtables = merger.lookup_subtables = [_Lookup_PairPos_subtables_canonicalize(st, merger.font) for st in subtables]
else:
isSinglePos = self.SubTable and isinstance(self.SubTable[0], ot.SinglePos)
if isSinglePos:
numSubtables = [len(st) for st in subtables]
if not all([nums == numSubtables[0] for nums in numSubtables]):
# Flatten list of SinglePos subtables to single Format 2 subtable,
# with all value records set to the rec format type.
# We use buildSinglePos() to optimize the lookup after merging.
valueFormatList = [t.ValueFormat for st in subtables for t in st]
# Find the minimum value record that can accomodate all the singlePos subtables.
mirf = reduce(ior, valueFormatList)
self.SubTable = _Lookup_SinglePos_subtables_flatten(self.SubTable, merger.font, mirf)
subtables = merger.lookup_subtables = [
_Lookup_SinglePos_subtables_flatten(st, merger.font, mirf) for st in subtables]
flattened = True
else:
flattened = False
merger.mergeLists(self.SubTable, subtables)
self.SubTableCount = len(self.SubTable)
if isPairPos:
# If format-1 subtable created during canonicalization is empty, remove it.
assert len(self.SubTable) >= 1 and self.SubTable[0].Format == 1
if not self.SubTable[0].Coverage.glyphs:
self.SubTable.pop(0)
self.SubTableCount -= 1
# If format-2 subtable created during canonicalization is empty, remove it.
assert len(self.SubTable) >= 1 and self.SubTable[-1].Format == 2
if not self.SubTable[-1].Coverage.glyphs:
self.SubTable.pop(-1)
self.SubTableCount -= 1
# Compact the merged subtables
# This is a good moment to do it because the compaction should create
# smaller subtables, which may prevent overflows from happening.
# Keep reading the value from the ENV until ufo2ft switches to the config system
level = merger.font.cfg.get(
"fontTools.otlLib.optimize.gpos:COMPRESSION_LEVEL",
default=_compression_level_from_env(),
)
if level != 0:
log.info("Compacting GPOS...")
self.SubTable = compact_pair_pos(merger.font, level, self.SubTable)
self.SubTableCount = len(self.SubTable)
elif isSinglePos and flattened:
singlePosTable = self.SubTable[0]
glyphs = singlePosTable.Coverage.glyphs
# We know that singlePosTable is Format 2, as this is set
# in _Lookup_SinglePos_subtables_flatten.
singlePosMapping = {
gname: valRecord
for gname, valRecord in zip(glyphs, singlePosTable.Value)
}
self.SubTable = buildSinglePos(singlePosMapping, merger.font.getReverseGlyphMap())
merger.mergeObjects(self, lst, exclude=['SubTable', 'SubTableCount'])
del merger.lookup_subtables
def build(self):
subtables = otl.buildSinglePos(self.mapping, self.glyphMap)
return self.buildLookup_(subtables)