def renameClasses(self, oldToNew):
"""
Renames all class names (in each StateRow, and in the class table) as
specified by the oldToNew dict, which maps old strings to new ones. If
an old name is not present as a key in oldToNew, that class name will
not be changed.
"""
ct = classtable.ClassTable()
for glyph, className in self.classTable.items():
ct[glyph] = oldToNew.get(className, className)
self.classTable = ct
for stateName in self:
stateRow = self[stateName]
sr = staterow_ligature.StateRow()
for className, entryObj in stateRow.items():
sr[oldToNew.get(className, className)] = entryObj
self[stateName] = sr
def _makeObj():
GLYPH_c = 70
GLYPH_e = 72
GLYPH_f = 73
GLYPH_i = 76
GLYPH_l = 79
GLYPH_o = 82
GLYPH_fi = 192
GLYPH_fl = 193
GLYPH_ff = 330
GLYPH_ffi = 331
GLYPH_ffl = 332
GLYPH_special = 873
Entry = entry_ligature.Entry
GTD = glyphtupledict.GlyphTupleDict
GTI = glyphtuple.GlyphTupleInput
GTO = glyphtuple.GlyphTupleOutput
StateRow = staterow_ligature.StateRow
classTable = classtable.ClassTable({
GLYPH_c: "c",
GLYPH_e: "e",
GLYPH_f: "f",
GLYPH_i: "i",
GLYPH_l: "l",
GLYPH_o: "o"})
cov = coverage.Coverage(always=True, kind=2)
entry0 = Entry(
newState = "Start of text")
entry1 = Entry(
newState = "Saw f",
push = True)
entry2 = Entry(
newState = "Saw o",
push = True)
entry3 = Entry(
newState = "Saw ff",
push = True,
actions = GTD({
GTI((GLYPH_f, GLYPH_f)): GTO((GLYPH_ff, None))}))
entry4 = Entry(
newState = "Start of text",
push = True,
actions = GTD({
GTI((GLYPH_f, GLYPH_i)): GTO((GLYPH_fi, None)),
GTI((GLYPH_f, GLYPH_l)): GTO((GLYPH_fl, None))}))
entry5 = Entry(
newState = "Start of text",
push = True,
actions = GTD({
GTI((GLYPH_ff, GLYPH_i)): GTO((GLYPH_ffi, None)),
GTI((GLYPH_ff, GLYPH_l)): GTO((GLYPH_ffl, None))}))
entry6 = Entry(
newState = "Saw of",
push = True)
entry7 = Entry(
newState = "Saw off",
push = True,
actions = GTD({
GTI((GLYPH_f, GLYPH_f)): GTO((GLYPH_ff, None))}))
entry8 = Entry(
newState = "Saw offi",
push = True,
actions = GTD({
GTI((GLYPH_ff, GLYPH_i)): GTO((GLYPH_ffi, None))}))
entry9 = Entry(
newState = "Saw offic",
push = True)
entry10 = Entry(
newState = "Start of text",
push = True,
actions = GTD({
GTI((GLYPH_o, GLYPH_ffi, GLYPH_c, GLYPH_e)):
GTO((GLYPH_special, None, None, None))}))
row_SOT = StateRow({
"End of text": entry0,
"Out of bounds": entry0,
"Deleted glyph": entry0,
"End of line": entry0,
"c": entry0,
"e": entry0,
"f": entry1,
"i": entry0,
"l": entry0,
"o": entry2})
row_SOL = StateRow({
"End of text": entry0,
"Out of bounds": entry0,
"Deleted glyph": entry0,
"End of line": entry0,
"c": entry0,
"e": entry0,
"f": entry1,
"i": entry0,
"l": entry0,
"o": entry2})
row_Sawf = StateRow({
"End of text": entry0,
"Out of bounds": entry0,
"Deleted glyph": entry0,
"End of line": entry0,
"c": entry0,
"e": entry0,
"f": entry3,
"i": entry4,
"l": entry4,
"o": entry2})
row_Sawff = StateRow({
"End of text": entry0,
"Out of bounds": entry0,
"Deleted glyph": entry0,
"End of line": entry0,
"c": entry0,
"e": entry0,
"f": entry1,
"i": entry5,
"l": entry5,
"o": entry2})
row_Sawo = StateRow({
"End of text": entry0,
"Out of bounds": entry0,
"Deleted glyph": entry0,
"End of line": entry0,
"c": entry0,
"e": entry0,
"f": entry6,
"i": entry0,
"l": entry0,
"o": entry2})
row_Sawof = StateRow({
"End of text": entry0,
"Out of bounds": entry0,
"Deleted glyph": entry0,
"End of line": entry0,
"c": entry0,
"e": entry0,
"f": entry7,
"i": entry4,
"l": entry4,
"o": entry2})
row_Sawoff = StateRow({
"End of text": entry0,
"Out of bounds": entry0,
"Deleted glyph": entry0,
"End of line": entry0,
"c": entry0,
"e": entry0,
"f": entry1,
"i": entry8,
"l": entry5,
"o": entry2})
row_Sawoffi = StateRow({
"End of text": entry0,
"Out of bounds": entry0,
"Deleted glyph": entry0,
"End of line": entry0,
"c": entry9,
"e": entry0,
"f": entry1,
"i": entry0,
"l": entry0,
"o": entry2})
row_Sawoffic = StateRow({
"End of text": entry0,
"Out of bounds": entry0,
"Deleted glyph": entry0,
"End of line": entry0,
"c": entry0,
"e": entry10,
"f": entry1,
"i": entry0,
"l": entry0,
"o": entry2})
ligTable = Ligature(
{
"Start of text": row_SOT,
"Start of line": row_SOL,
"Saw f": row_Sawf,
"Saw ff": row_Sawff,
"Saw o": row_Sawo,
"Saw of": row_Sawof,
"Saw off": row_Sawoff,
"Saw offi": row_Sawoffi,
"Saw offic": row_Sawoffic},
coverage = cov,
maskValue = 0x00000080,
classTable = classTable)
return ligTable
def _classTableFromKeyGroup(keyGroup, nm):
"""
Creates and returns a new ClassTable object based on an analysis of the
specified keyGroup, which should be a dict mapping input glyph tuples
to ligature glyphs. This analysis takes into account sharing classes
for glyphs whose behaviors are similar enough.
Note that partial overlaps should already have been resolved (i.e. the
keyGroup passed in should have passed a prior _separatedKeys() call)
before this method is called.
<<< tm = _getTestDataModule()
<<< ligObj = tm.makeGSUBObj()
<<< postObj = tm.makePOSTObj()
<<< vKeyGroups = ligObj._separatedKeys()
<<< len(vKeyGroups)
1
<<< nm = lambda n: postObj[n]
<<< Ligature._classTableFromKeyGroup(ligObj, nm).pprint()
4: group candrabindudeva
5: group candrabindudeva
11: group iideva
16: group iideva
17: group iideva
19: group iideva
20: group iideva
21: group iideva
22: group iideva
23: group iideva
65: group iivowelsigndeva
70: group iivowelsigndeva
71: group iivowelsigndeva
72: group iivowelsigndeva
73: group iivowelsigndeva
74: group iivowelsigndeva
75: group iivowelsigndeva
76: group iivowelsigndeva
77: group iivowelsigndeva
110: group iideva
122: group iideva
125: group iideva
126: group iideva
128: group iideva
129: group iideva
130: group iideva
131: group iideva
132: group iideva
158: group rephdeva
412: group rephdeva
"""
from fontio3.morx import classtable
ct = classtable.ClassTable()
d = {}
for inTuple, lig in keyGroup.items():
currState = "SOT"
for i, glyph in enumerate(inTuple):
sr = d.setdefault(currState, {})
if i == (len(inTuple) - 1):
t = ("SOT", lig)
else:
if i:
s = "%s-%d" % (currState, glyph)
else:
s = "Saw %d" % (glyph,)
t = (s, None)
sr[glyph] = t
currState = t[0]
leafTriggers = {k[-1] for k in keyGroup}
dTailSames = {}
for trigger in leafTriggers:
s = {
stateName
for stateName, dSub in d.items()
if (stateName != "SOT") and (trigger in dSub)}
dTailSames.setdefault(frozenset(s), set()).add(trigger)
for tailSameSet in dTailSames.values():
if len(tailSameSet) == 1:
trigger = tailSameSet.pop()
ct[trigger] = nm(trigger)
else:
s = "group %s" % (nm(min(tailSameSet)),)
for trigger in tailSameSet:
ct[trigger] = s
headTriggers = set(d) - {'SOT'}
dHeadSames = {}
for trigger in headTriggers:
dSub = d[trigger]
dHeadSames.setdefault(frozenset(dSub), set()).add(trigger)
for headSameSet in dHeadSames.values():
if len(headSameSet) > 1:
glyphs = {int(s[4:]) for s in headSameSet if '-' not in s}
if glyphs:
s = "group %s" % (nm(min(glyphs)),)
for glyph in glyphs:
ct[glyph] = s
allSingleGlyphs = {glyph for key in keyGroup for glyph in key}
for glyph in allSingleGlyphs:
if glyph not in ct:
ct[glyph] = nm(glyph)
return ct
#
if 0:
def __________________(): pass
if __debug__:
from fontio3 import utilities
from fontio3.morx import coverage
from fontio3.utilities import namer
# The test case does an AxD => DxA rearrangement on a grouping starting
# with glyph 12 and ending with glyph 19, but only if glyph 50 has been
# seen first.
_classTable = classtable.ClassTable({
12: "First",
19: "Last",
50: "Trigger"})
E = entry_rearrangement.Entry
V = verbs_rearrangement.Verb
_entry_NOP_noTrigger = E()
_entry_NOP_trigger = E(newState="Saw trigger")
_entry_first = E(newState="Saw first", markFirst=True)
_entry_NOP_first = E(newState="Saw first")
_entry_last = E(markLast=True, verb=V(3))
del E, V
_row_SOT = staterow_rearrangement.StateRow({
"End of text": _entry_NOP_noTrigger,
"Out of bounds": _entry_NOP_noTrigger,
"Deleted glyph": _entry_NOP_noTrigger,
def fromglyphdict(cls, d, **kwArgs):
"""
Given a dict mapping trigger glyphs to to-be-inserted sequences,
returns an Insertion subtable that does this. This is a simple table,
with only the two fixed states.
>>> d = {20: (50, 51), 21: (52, 53, 54, 55)}
>>> Insertion.fromglyphdict(d).pprint(onlySignificant=True)
State 'Start of text':
Class 'glyph 20':
Insert glyphs before current: False
Glyphs to insert at current:
0: 50
1: 51
Current insertion is kashida-like: True
Name of next state: Start of text
Class 'glyph 21':
Insert glyphs before current: False
Glyphs to insert at current:
0: 52
1: 53
2: 54
3: 55
Current insertion is kashida-like: True
Name of next state: Start of text
State 'Start of line':
Class 'glyph 20':
Insert glyphs before current: False
Glyphs to insert at current:
0: 50
1: 51
Current insertion is kashida-like: True
Name of next state: Start of text
Class 'glyph 21':
Insert glyphs before current: False
Glyphs to insert at current:
0: 52
1: 53
2: 54
3: 55
Current insertion is kashida-like: True
Name of next state: Start of text
Class table:
20: glyph 20
21: glyph 21
Mask value: (no data)
Coverage: (no data)
"""
ct = classtable.ClassTable({g: "glyph %d" % (g, ) for g in d})
sot = staterow_insertion.StateRow()
entryNOP = entry_insertion.Entry()
sot["End of text"] = entryNOP
sot["Out of bounds"] = entryNOP
sot["Deleted glyph"] = entryNOP
sot["End of line"] = entryNOP
for g, v in d.items():
sot["glyph %d" % (g, )] = entry_insertion.Entry(
currentInsertBefore=False,
currentInsertGlyphs=glyphtuple.GlyphTupleOutput(v),
currentIsKashidaLike=True)
kwArgs.pop('classTable', None)
r = cls({}, classTable=ct, **utilities.filterKWArgs(cls, kwArgs))
r["Start of text"] = sot
r["Start of line"] = sot
return r
if __debug__:
from fontio3 import utilities
from fontio3.morx import coverage
# _testingValues[0] is an insertion action that looks for the string "Dave"
# and, if found, puts a fleuron at each end. The glyph codes are as follow:
#
# 'D' is glyph 12
# 'a' is glyph 41
# 'v' is glyph 62
# 'e' is glyph 45
# left fleuron is glyph 96
# right fleuron is glyph 97
_classTable = classtable.ClassTable({12: "D", 41: "a", 62: "v", 45: "e"})
E = entry_insertion.Entry
GTO = glyphtuple.GlyphTupleOutput
_entry_NOP = E()
_entry_D = E(newState="Saw D", mark=True)
_entry_D_nomark = E(newState="Saw D")
_entry_Da = E(newState="Saw Da")
_entry_Dav = E(newState="Saw Dav")
_entry_Dave = E(newState="Start of text",
currentInsertGlyphs=GTO([97]),
currentIsKashidaLike=True,
markedInsertGlyphs=GTO([96]),
markedIsKashidaLike=True,
markedInsertBefore=True)
def __________________():
pass
if __debug__:
from fontio3.morx import coverage
from fontio3.utilities import namer
# The test case changes input glyphs 22-25 into output glyphs 95-98, but
# only if glyph 50 is seen earlier in the run.
_classTable = classtable.ClassTable({
22: "Swash",
23: "Swash",
24: "Swash",
25: "Swash",
50: "Trigger"
})
_entry_NOP_noTrigger = entry_contextual.Entry(newState="Start of text")
_entry_NOP_trigger = entry_contextual.Entry(newState="Saw trigger")
_entry_doSubst = entry_contextual.Entry(
newState="Saw trigger",
currSubstitutionDict=glyphdict.GlyphDict({
22: 95,
23: 96,
24: 97,
25: 98
}))
