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from fontTools.otlLib import builder as builder
GDEF::mark filtering sets
name::
lookup_flags = builder.LOOKUP_FLAG_IGNORE_MARKS | builder.LOOKUP_FLAG_RTL
smcp_subtable = builder.buildSingleSubstitute({'a':'a.scmp'})
smcp_lookup = builder.buildLookup([smcp_subtable], lookup_flags=lookup_flags, mark_filter_set=int)
lookups = [smcp_lookup, ...]
scmp_feature = builder.buildFeature('smcp', [scmp_lookup], lookup_list=lookups)
scmp_feature = builder.buildFeature('smcp', [0])
features = [smcp_feature]
default_langsys = builder.buildLangSys(set([scmp_feature]), requiredFeature=None, featureOrder=features)
default_langsys = builder.buildLangSys(set([0]), requiredFeature=None)
script =
#GSUB:
builder.buildSingleSubst({'a':'a.scmp'})
builder.buildLigatureSubst({('f','i'):'fi'})
builder.buildMultipleSubst({'a':('a0','a1')})
builder.buildAlternateSubst({'a':('a.0','a.1')})
class ChainSequence : namedtuple(['backtrack', 'input', 'lookahead')])
pass
ChainSequence(backtrack=..., input=..., lookahead=...)
klass0 = frozenset()
builder.buildChainContextGlyphs(
[
( (None, ('f','f','i'), (,)), ( (1,lookup_fi), (1,lookup_2) ) ),
],
glyphMap
)
builder.buildChainContextClass(
[
( (None, (2,0,1), (,)), ( (1,lookup_fi), (1,lookup_2) ) ),
],
klasses = ( backtrackClass, ... ),
glyphMap
)
builder.buildChainContextCoverage(
( (None, (frozenset('f'),frozenset('f'),frozenset('i')), (,)), ( (1,lookup_fi), (1,lookup_2) ) ),
glyphMap
)
builder.buildExtension(...)
#GPOS:
device = builder.buildDevice()
builder.buildAnchor(100, -200) or (100,-200)
builder.buildAnchor(100, -200, device=device)
builder.buildAnchor(100, -200, point=2)
valueRecord = builder.buildValue({'XAdvance':-200, ...})
builder.buildSinglePos({'a':valueRecord})
builder.buildPairPosGlyphs(
{
('a','b'): (valueRecord1,valueRecord2),
},
glyphMap,
, valueFormat1=None, valueFormat2=None
)
builder.buildPairPosClasses(
{
(frozenset(['a']),frozenset(['b'])): (valueRecord1,valueRecord2),
},
glyphMap,
, valueFormat1=None, valueFormat2=None
)
builder.buildCursivePos(
{
'alef': (entry,exit),
}
glyphMap
)
builder.buildMarkBasePos(
marks = {
'mark1': (klass, anchor),
},
bases = {
'base0': [anchor0, anchor1, anchor2],
},
glyphMap
)
builder.buildMarkBasePos(
marks = {
'mark1': (name, anchor),
},
bases = {
'base0': {'top':anchor0, 'left':anchor1},
},
glyphMap
)
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