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[mtiLib] Allow empty lookup

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This commit is contained in:
Behdad Esfahbod 2016-12-27 13:37:11 -05:00
parent edd46bb14a
commit 2f800c9384
1 changed files with 14 additions and 10 deletions
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24
Lib/fontTools/mtiLib/__init__.py
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@ -186,7 +186,7 @@ def parseLookupFlags(lines):
'markattachmenttype',
'markfiltertype',
]
while lines.peek()[0].lower() in allFlags:
while lines.peeks()[0].lower() in allFlags:
line = next(lines)
flag = {
'righttoleft': 0x0001,
@ -253,7 +253,7 @@ def parseSinglePos(lines, font, _lookupMap=None):
def parsePair(self, lines, font, _lookupMap=None):
self.ValueFormat1 = self.ValueFormat2 = 0
typ = lines.peek()[0].split()[0].lower()
typ = lines.peeks()[0].split()[0].lower()
if typ in ('left', 'right'):
self.Format = 1
values = {}
@ -295,7 +295,7 @@ def parsePair(self, lines, font, _lookupMap=None):
elif typ.endswith('class'):
self.Format = 2
classDefs = [None, None]
while lines.peek()[0].endswith("class definition begin"):
while lines.peeks()[0].endswith("class definition begin"):
typ = lines.peek()[0][:-len("class definition begin")].lower()
idx,klass = {
'first': (0,ot.ClassDef1),
@ -338,7 +338,7 @@ def parsePair(self, lines, font, _lookupMap=None):
assert 0, typ
def parseKernset(self, lines, font, _lookupMap=None):
typ = lines.peek()[0].split()[0].lower()
typ = lines.peeks()[0].split()[0].lower()
if typ in ('left', 'right'):
with lines.until(("firstclass definition begin", "secondclass definition begin")):
return parsePair(self, lines, font)
@ -689,7 +689,7 @@ def bucketizeRules(self, c, rules, bucketKeys):
setattr(self, c.RuleSetCount, len(rulesets))
def parseContext(self, lines, font, Type, lookupMap=None):
typ = lines.peek()[0].split()[0].lower()
typ = lines.peeks()[0].split()[0].lower()
if typ == 'glyph':
self.Format = 1
log.debug("Parsing %s format %s", Type, self.Format)
@ -710,7 +710,7 @@ def parseContext(self, lines, font, Type, lookupMap=None):
log.debug("Parsing %s format %s", Type, self.Format)
c = ContextHelper(Type, self.Format)
classDefs = [None] * c.DataLen
while lines.peek()[0].endswith("class definition begin"):
while lines.peeks()[0].endswith("class definition begin"):
typ = lines.peek()[0][:-len("class definition begin")].lower()
idx,klass = {
1: {
@ -741,7 +741,7 @@ def parseContext(self, lines, font, Type, lookupMap=None):
log.debug("Parsing %s format %s", Type, self.Format)
c = ContextHelper(Type, self.Format)
coverages = tuple([] for i in range(c.DataLen))
while lines.peek()[0].endswith("coverage definition begin"):
while lines.peeks()[0].endswith("coverage definition begin"):
typ = lines.peek()[0][:-len("coverage definition begin")].lower()
idx,klass = {
1: {
@ -777,7 +777,7 @@ def parseChainedPos(self, lines, font, lookupMap=None):
def parseReverseChainedSubst(self, lines, font, _lookupMap=None):
self.Format = 1
coverages = ([], [])
while lines.peek()[0].endswith("coverage definition begin"):
while lines.peeks()[0].endswith("coverage definition begin"):
typ = lines.peek()[0][:-len("coverage definition begin")].lower()
idx,klass = {
'backtrack': (0,ot.BacktrackCoverage),
@ -842,7 +842,7 @@ def parseLookup(lines, tableTag, font, lookupMap=None):
subtable = ot.lookupTypes[tableTag][lookup.LookupType]()
parseLookupSubTable(subtable, lines, font, lookupMap)
subtables.append(subtable)
if lines.peek() and lines.peek()[0] in ('% subtable', 'subtable end'):
if lines.peeks()[0] in ('% subtable', 'subtable end'):
next(lines)
lines.expect('lookup end')
@ -1015,7 +1015,7 @@ def parseCmapId(lines, field):
def parseTable(lines, font, tableTag=None):
log.debug("Parsing table")
line = lines.peek()
line = lines.peeks()
tag = None
if line[0].split()[0] == 'FontDame':
tag = line[0].split()[1]
@ -1103,6 +1103,10 @@ class Tokenizer(object):
return None
return self.buffer
def peeks(self):
ret = self.peek()
return ret if ret is not None else ('',)
@contextmanager
def between(self, tag):
start = tag + ' begin'