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[AAT] Support lcar table

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This commit is contained in:
Sascha Brawer 2017-08-16 02:38:00 +02:00
parent ff7cf27777
commit d11e7d98e8
4 changed files with 117 additions and 2 deletions
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1
Lib/fontTools/ttLib/tables/__init__.py
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@ -65,6 +65,7 @@ def _moduleFinderHint():
from . import _h_h_e_a
from . import _h_m_t_x
from . import _k_e_r_n
from . import _l_c_a_r
from . import _l_o_c_a
from . import _l_t_a_g
from . import _m_a_x_p

7
Lib/fontTools/ttLib/tables/_l_c_a_r.py Normal file
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@ -0,0 +1,7 @@
from __future__ import print_function, division, absolute_import
from fontTools.misc.py23 import *
from .otBase import BaseTTXConverter
class table__l_c_a_r(BaseTTXConverter):
pass

4
README.rst
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@ -102,8 +102,8 @@ The following tables are currently supported:
OS/2, SING, STAT, SVG, TSI0, TSI1, TSI2, TSI3, TSI5, TSIB, TSID,
TSIJ, TSIP, TSIS, TSIV, TTFA, VDMX, VORG, VVAR, avar, cmap, cvar,
cvt, feat, fpgm, fvar, gasp, glyf, gvar, hdmx, head, hhea, hmtx,
kern, loca, ltag, maxp, meta, name, post, prep, sbix, trak, vhea
and vmtx
kern, lcar, loca, ltag, maxp, meta, name, post, prep, sbix, trak,
vhea and vmtx
.. end table list
Other tables are dumped as hexadecimal data.

107
Tests/ttLib/tables/_l_c_a_r_test.py Normal file
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@ -0,0 +1,107 @@
from __future__ import print_function, division, absolute_import
from fontTools.misc.py23 import *
from fontTools.misc.testTools import FakeFont, getXML, parseXML
from fontTools.misc.textTools import deHexStr, hexStr
from fontTools.ttLib import newTable
import unittest
# Example: Format 0 Ligature Caret Table
# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6lcar.html
LCAR_FORMAT_0_DATA = deHexStr(
'0001 0000 0000 ' # 0: Version=1.0, Format=0
'0006 0004 0002 ' # 6: LookupFormat=6, UnitSize=4, NUnits=2
'0008 0001 0000 ' # 12: SearchRange=8, EntrySelector=1, RangeShift=0
'0001 001E ' # 18: Glyph=1 (f_r), OffsetOfLigCaretEntry=30
'0003 0022 ' # 22: Glyph=3 (f_f_l), OffsetOfLigCaretEntry=34
'FFFF 0000 ' # 26: Glyph=<end>, OffsetOfLigCaretEntry=0
'0001 00DC ' # 30: DivisionPointCount=1, DivisionPoint=[220]
'0002 00EF 01D8 ' # 34: DivisionPointCount=2, DivisionPoint=[239, 475]
) # 40: <end>
assert(len(LCAR_FORMAT_0_DATA) == 40)
LCAR_FORMAT_0_XML = [
'<Version value="0x00010000"/>',
'<Format value="0"/>',
'<Carets>',
' <Lookup glyph="f_f_l">',
' <!-- DivsionPointCount=2 -->',
' <DivisionPoint index="0" value="239"/>',
' <DivisionPoint index="1" value="472"/>',
' </Lookup>',
' <Lookup glyph="f_r">',
' <!-- DivsionPointCount=1 -->',
' <DivisionPoint index="0" value="220"/>',
' </Lookup>',
'</Carets>',
]
# Example: Format 1 Ligature Caret Table
# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6lcar.html
LCAR_FORMAT_1_DATA = deHexStr(
'0001 0000 0001 ' # 0: Version=1.0, Format=1
'0006 0004 0002 ' # 6: LookupFormat=6, UnitSize=4, NUnits=2
'0008 0001 0000 ' # 12: SearchRange=8, EntrySelector=1, RangeShift=0
'0001 001E ' # 18: Glyph=1 (f_r), OffsetOfLigCaretEntry=30
'0003 0022 ' # 22: Glyph=3 (f_f_l), OffsetOfLigCaretEntry=34
'FFFF 0000 ' # 26: Glyph=<end>, OffsetOfLigCaretEntry=0
'0001 0032 ' # 30: DivisionPointCount=1, DivisionPoint=[50]
'0002 0037 004B ' # 34: DivisionPointCount=2, DivisionPoint=[55, 75]
) # 40: <end>
assert(len(LCAR_FORMAT_1_DATA) == 40)
LCAR_FORMAT_1_XML = [
'<Version value="0x00010000"/>',
'<Format value="1"/>',
'<Carets>',
' <Lookup glyph="f_f_l">',
' <!-- DivsionPointCount=2 -->',
' <DivisionPoint index="0" value="55"/>',
' <DivisionPoint index="1" value="75"/>',
' </Lookup>',
' <Lookup glyph="f_r">',
' <!-- DivsionPointCount=1 -->',
' <DivisionPoint index="0" value="50"/>',
' </Lookup>',
'</Carets>',
]
class LCARTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.maxDiff = None
cls.font = FakeFont(['.notdef', 'f_r', 'X', 'f_f_l'])
def test_decompile_toXML_format0(self):
table = newTable('lcar')
table.decompile(LCAR_FORMAT_0_DATA, self.font)
self.assertEqual(getXML(table.toXML), LCAR_FORMAT_0_XML)
def test_compile_fromXML_format0(self):
table = newTable('lcar')
for name, attrs, content in parseXML(LCAR_FORMAT_0_XML):
table.fromXML(name, attrs, content, font=self.font)
self.assertEqual(hexStr(table.compile(self.font)),
hexStr(LCAR_FORMAT_0_DATA))
def test_decompile_toXML_format1(self):
table = newTable('lcar')
table.decompile(LCAR_FORMAT_1_DATA, self.font)
self.assertEqual(getXML(table.toXML), LCAR_FORMAT_1_XML)
def test_compile_fromXML_format1(self):
table = newTable('lcar')
for name, attrs, content in parseXML(LCAR_FORMAT_1_XML):
table.fromXML(name, attrs, content, font=self.font)
self.assertEqual(hexStr(table.compile(self.font)),
hexStr(LCAR_FORMAT_1_DATA))
if __name__ == '__main__':
import sys
sys.exit(unittest.main())