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fonttools/Tests/ttLib/tables/_b_s_l_n_test.py

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[AAT] Implement `bsln` baseline table The AAT baseline table uses arrays whose length is constant instead of getting encoded in the data. Extended otBase to support such arrays.
2017-08-24 08:54:27 +02:00
from fontTools.misc.testTools import FakeFont, getXML, parseXML
from fontTools.misc.textTools import deHexStr, hexStr
from fontTools.ttLib import newTable
import unittest
# Apple's spec of the baseline table gives no example for 'bsln' format 0,
# but the Apple Chancery font contains the following data.
BSLN_FORMAT_0_DATA = deHexStr(
"0001 0000 0000 " # 0: Version=1.0, Format=0
"0000 " # 6: DefaultBaseline=0 (Roman baseline)
"0000 01D1 0000 0541 " # 8: Delta[0..3]=0, 465, 0, 1345
"01FB 0000 0000 0000 " # 16: Delta[4..7]=507, 0, 0, 0
"0000 0000 0000 0000 " # 24: Delta[8..11]=0, 0, 0, 0
"0000 0000 0000 0000 " # 32: Delta[12..15]=0, 0, 0, 0
"0000 0000 0000 0000 " # 40: Delta[16..19]=0, 0, 0, 0
"0000 0000 0000 0000 " # 48: Delta[20..23]=0, 0, 0, 0
"0000 0000 0000 0000 " # 56: Delta[24..27]=0, 0, 0, 0
"0000 0000 0000 0000 " # 64: Delta[28..31]=0, 0, 0, 0
) # 72: <end>
assert len(BSLN_FORMAT_0_DATA) == 72
BSLN_FORMAT_0_XML = [
'<Version value="0x00010000"/>',
'<Baseline Format="0">',
' <DefaultBaseline value="0"/>',
' <Delta index="0" value="0"/>',
' <Delta index="1" value="465"/>',
' <Delta index="2" value="0"/>',
' <Delta index="3" value="1345"/>',
' <Delta index="4" value="507"/>',
' <Delta index="5" value="0"/>',
' <Delta index="6" value="0"/>',
' <Delta index="7" value="0"/>',
' <Delta index="8" value="0"/>',
' <Delta index="9" value="0"/>',
' <Delta index="10" value="0"/>',
' <Delta index="11" value="0"/>',
' <Delta index="12" value="0"/>',
' <Delta index="13" value="0"/>',
' <Delta index="14" value="0"/>',
' <Delta index="15" value="0"/>',
' <Delta index="16" value="0"/>',
' <Delta index="17" value="0"/>',
' <Delta index="18" value="0"/>',
' <Delta index="19" value="0"/>',
' <Delta index="20" value="0"/>',
' <Delta index="21" value="0"/>',
' <Delta index="22" value="0"/>',
' <Delta index="23" value="0"/>',
' <Delta index="24" value="0"/>',
' <Delta index="25" value="0"/>',
' <Delta index="26" value="0"/>',
' <Delta index="27" value="0"/>',
' <Delta index="28" value="0"/>',
' <Delta index="29" value="0"/>',
' <Delta index="30" value="0"/>',
' <Delta index="31" value="0"/>',
"</Baseline>",
]
# Example: Format 1 Baseline Table
# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6bsln.html
# The example in the AAT specification uses the value 270 for Seg[0].LastGlyph,
# whereas we use the value 10 for testng to shorten the XML dump.
BSLN_FORMAT_1_DATA = deHexStr(
"0001 0000 0001 " # 0: Version=1.0, Format=1
"0001 " # 6: DefaultBaseline=1 (Ideographic baseline)
"0000 0357 0000 05F0 " # 8: Delta[0..3]=0, 855, 0, 1520
"0000 0000 0000 0000 " # 16: Delta[4..7]=0, 0, 0, 0
"0000 0000 0000 0000 " # 24: Delta[8..11]=0, 0, 0, 0
"0000 0000 0000 0000 " # 32: Delta[12..15]=0, 0, 0, 0
"0000 0000 0000 0000 " # 40: Delta[16..19]=0, 0, 0, 0
"0000 0000 0000 0000 " # 48: Delta[20..23]=0, 0, 0, 0
"0000 0000 0000 0000 " # 56: Delta[24..27]=0, 0, 0, 0
"0000 0000 0000 0000 " # 64: Delta[28..31]=0, 0, 0, 0
"0002 0006 0001 " # 72: LookupFormat=2, UnitSize=6, NUnits=1
"0006 0000 0000 " # 78: SearchRange=6, EntrySelector=0, RangeShift=0
"000A 0002 0000 " # 84: Seg[0].LastGlyph=10 FirstGl=2 Value=0/Roman
"FFFF FFFF 0000 " # 90: Seg[1]=<end>
) # 96: <end>
assert len(BSLN_FORMAT_1_DATA) == 96
BSLN_FORMAT_1_XML = [
'<Version value="0x00010000"/>',
'<Baseline Format="1">',
' <DefaultBaseline value="1"/>',
' <Delta index="0" value="0"/>',
' <Delta index="1" value="855"/>',
' <Delta index="2" value="0"/>',
' <Delta index="3" value="1520"/>',
' <Delta index="4" value="0"/>',
' <Delta index="5" value="0"/>',
' <Delta index="6" value="0"/>',
' <Delta index="7" value="0"/>',
' <Delta index="8" value="0"/>',
' <Delta index="9" value="0"/>',
' <Delta index="10" value="0"/>',
' <Delta index="11" value="0"/>',
' <Delta index="12" value="0"/>',
' <Delta index="13" value="0"/>',
' <Delta index="14" value="0"/>',
' <Delta index="15" value="0"/>',
' <Delta index="16" value="0"/>',
' <Delta index="17" value="0"/>',
' <Delta index="18" value="0"/>',
' <Delta index="19" value="0"/>',
' <Delta index="20" value="0"/>',
' <Delta index="21" value="0"/>',
' <Delta index="22" value="0"/>',
' <Delta index="23" value="0"/>',
' <Delta index="24" value="0"/>',
' <Delta index="25" value="0"/>',
' <Delta index="26" value="0"/>',
' <Delta index="27" value="0"/>',
' <Delta index="28" value="0"/>',
' <Delta index="29" value="0"/>',
' <Delta index="30" value="0"/>',
' <Delta index="31" value="0"/>',
" <BaselineValues>",
' <Lookup glyph="B" value="0"/>',
' <Lookup glyph="C" value="0"/>',
' <Lookup glyph="D" value="0"/>',
' <Lookup glyph="E" value="0"/>',
' <Lookup glyph="F" value="0"/>',
' <Lookup glyph="G" value="0"/>',
' <Lookup glyph="H" value="0"/>',
' <Lookup glyph="I" value="0"/>',
' <Lookup glyph="J" value="0"/>',
" </BaselineValues>",
"</Baseline>",
]
BSLN_FORMAT_2_DATA = deHexStr(
"0001 0000 0002 " # 0: Version=1.0, Format=2
"0004 " # 6: DefaultBaseline=4 (Math)
"0016 " # 8: StandardGlyph=22
"0050 0051 FFFF 0052 " # 10: ControlPoint[0..3]=80, 81, <none>, 82
"FFFF FFFF FFFF FFFF " # 18: ControlPoint[4..7]=<none>
"FFFF FFFF FFFF FFFF " # 26: ControlPoint[8..11]=<none>
"FFFF FFFF FFFF FFFF " # 34: ControlPoint[12..15]=<none>
"FFFF FFFF FFFF FFFF " # 42: ControlPoint[16..19]=<none>
"FFFF FFFF FFFF FFFF " # 50: ControlPoint[20..23]=<none>
"FFFF FFFF FFFF FFFF " # 58: ControlPoint[24..27]=<none>
"FFFF FFFF FFFF FFFF " # 66: ControlPoint[28..31]=<none>
) # 74: <end>
assert len(BSLN_FORMAT_2_DATA) == 74
BSLN_FORMAT_2_XML = [
'<Version value="0x00010000"/>',
'<Baseline Format="2">',
' <DefaultBaseline value="4"/>',
' <StandardGlyph value="V"/>',
' <ControlPoint index="0" value="80"/>',
' <ControlPoint index="1" value="81"/>',
' <ControlPoint index="2" value="65535"/>',
' <ControlPoint index="3" value="82"/>',
' <ControlPoint index="4" value="65535"/>',
' <ControlPoint index="5" value="65535"/>',
' <ControlPoint index="6" value="65535"/>',
' <ControlPoint index="7" value="65535"/>',
' <ControlPoint index="8" value="65535"/>',
' <ControlPoint index="9" value="65535"/>',
' <ControlPoint index="10" value="65535"/>',
' <ControlPoint index="11" value="65535"/>',
' <ControlPoint index="12" value="65535"/>',
' <ControlPoint index="13" value="65535"/>',
' <ControlPoint index="14" value="65535"/>',
' <ControlPoint index="15" value="65535"/>',
' <ControlPoint index="16" value="65535"/>',
' <ControlPoint index="17" value="65535"/>',
' <ControlPoint index="18" value="65535"/>',
' <ControlPoint index="19" value="65535"/>',
' <ControlPoint index="20" value="65535"/>',
' <ControlPoint index="21" value="65535"/>',
' <ControlPoint index="22" value="65535"/>',
' <ControlPoint index="23" value="65535"/>',
' <ControlPoint index="24" value="65535"/>',
' <ControlPoint index="25" value="65535"/>',
' <ControlPoint index="26" value="65535"/>',
' <ControlPoint index="27" value="65535"/>',
' <ControlPoint index="28" value="65535"/>',
' <ControlPoint index="29" value="65535"/>',
' <ControlPoint index="30" value="65535"/>',
' <ControlPoint index="31" value="65535"/>',
"</Baseline>",
]
# Example: Format 3 Baseline Table
# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6bsln.html
# The example in the AAT specification uses the value 270 for Seg[0].LastGlyph,
# whereas we use the value 10 for testng to shorten the XML dump.
BSLN_FORMAT_3_DATA = deHexStr(
"0001 0000 0003 " # 0: Version=1.0, Format=3
"0001 " # 6: DefaultBaseline=1 (Ideographic)
"0016 " # 8: StandardGlyph=22
"0050 0051 FFFF 0052 " # 10: ControlPoint[0..3]=80, 81, <none>, 82
"FFFF FFFF FFFF FFFF " # 18: ControlPoint[4..7]=<none>
"FFFF FFFF FFFF FFFF " # 26: ControlPoint[8..11]=<none>
"FFFF FFFF FFFF FFFF " # 34: ControlPoint[12..15]=<none>
"FFFF FFFF FFFF FFFF " # 42: ControlPoint[16..19]=<none>
"FFFF FFFF FFFF FFFF " # 50: ControlPoint[20..23]=<none>
"FFFF FFFF FFFF FFFF " # 58: ControlPoint[24..27]=<none>
"FFFF FFFF FFFF FFFF " # 66: ControlPoint[28..31]=<none>
"0002 0006 0001 " # 74: LookupFormat=2, UnitSize=6, NUnits=1
"0006 0000 0000 " # 80: SearchRange=6, EntrySelector=0, RangeShift=0
"000A 0002 0000 " # 86: Seg[0].LastGlyph=10 FirstGl=2 Value=0/Roman
"FFFF FFFF 0000 " # 92: Seg[1]=<end>
) # 98: <end>
assert len(BSLN_FORMAT_3_DATA) == 98
BSLN_FORMAT_3_XML = [
'<Version value="0x00010000"/>',
'<Baseline Format="3">',
' <DefaultBaseline value="1"/>',
' <StandardGlyph value="V"/>',
' <ControlPoint index="0" value="80"/>',
' <ControlPoint index="1" value="81"/>',
' <ControlPoint index="2" value="65535"/>',
' <ControlPoint index="3" value="82"/>',
' <ControlPoint index="4" value="65535"/>',
' <ControlPoint index="5" value="65535"/>',
' <ControlPoint index="6" value="65535"/>',
' <ControlPoint index="7" value="65535"/>',
' <ControlPoint index="8" value="65535"/>',
' <ControlPoint index="9" value="65535"/>',
' <ControlPoint index="10" value="65535"/>',
' <ControlPoint index="11" value="65535"/>',
' <ControlPoint index="12" value="65535"/>',
' <ControlPoint index="13" value="65535"/>',
' <ControlPoint index="14" value="65535"/>',
' <ControlPoint index="15" value="65535"/>',
' <ControlPoint index="16" value="65535"/>',
' <ControlPoint index="17" value="65535"/>',
' <ControlPoint index="18" value="65535"/>',
' <ControlPoint index="19" value="65535"/>',
' <ControlPoint index="20" value="65535"/>',
' <ControlPoint index="21" value="65535"/>',
' <ControlPoint index="22" value="65535"/>',
' <ControlPoint index="23" value="65535"/>',
' <ControlPoint index="24" value="65535"/>',
' <ControlPoint index="25" value="65535"/>',
' <ControlPoint index="26" value="65535"/>',
' <ControlPoint index="27" value="65535"/>',
' <ControlPoint index="28" value="65535"/>',
' <ControlPoint index="29" value="65535"/>',
' <ControlPoint index="30" value="65535"/>',
' <ControlPoint index="31" value="65535"/>',
" <BaselineValues>",
' <Lookup glyph="B" value="0"/>',
' <Lookup glyph="C" value="0"/>',
' <Lookup glyph="D" value="0"/>',
' <Lookup glyph="E" value="0"/>',
' <Lookup glyph="F" value="0"/>',
' <Lookup glyph="G" value="0"/>',
' <Lookup glyph="H" value="0"/>',
' <Lookup glyph="I" value="0"/>',
' <Lookup glyph="J" value="0"/>',
" </BaselineValues>",
"</Baseline>",
]
class BSLNTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.maxDiff = None
cls.font = FakeFont([".notdef"] + [g for g in "ABCDEFGHIJKLMNOPQRSTUVWXYZ"])
def decompileToXML(self, data, xml):
table = newTable("bsln")
table.decompile(data, self.font)
[AAT] Write AATLookups to XML in alphabetical order again The XML output for other tables is also sorted alphabetically by glyph name, not by glyph order. This reverts commit c77e9fe12d5879aeb79c05f8ececebb3275524b7.
2017-09-01 15:56:21 +02:00
self.assertEqual(getXML(table.toXML), xml)
[AAT] Implement `bsln` baseline table The AAT baseline table uses arrays whose length is constant instead of getting encoded in the data. Extended otBase to support such arrays.
2017-08-24 08:54:27 +02:00
def compileFromXML(self, xml, data):
table = newTable("bsln")
for name, attrs, content in parseXML(xml):
table.fromXML(name, attrs, content, font=self.font)
self.assertEqual(hexStr(table.compile(self.font)), hexStr(data))
def testFormat0(self):
self.decompileToXML(BSLN_FORMAT_0_DATA, BSLN_FORMAT_0_XML)
self.compileFromXML(BSLN_FORMAT_0_XML, BSLN_FORMAT_0_DATA)
def testFormat1(self):
self.decompileToXML(BSLN_FORMAT_1_DATA, BSLN_FORMAT_1_XML)
self.compileFromXML(BSLN_FORMAT_1_XML, BSLN_FORMAT_1_DATA)
def testFormat2(self):
self.decompileToXML(BSLN_FORMAT_2_DATA, BSLN_FORMAT_2_XML)
self.compileFromXML(BSLN_FORMAT_2_XML, BSLN_FORMAT_2_DATA)
def testFormat3(self):
self.decompileToXML(BSLN_FORMAT_3_DATA, BSLN_FORMAT_3_XML)
self.compileFromXML(BSLN_FORMAT_3_XML, BSLN_FORMAT_3_DATA)
if __name__ == "__main__":
import sys
Blacken code
2022-12-13 11:26:36 +00:00
[AAT] Implement `bsln` baseline table The AAT baseline table uses arrays whose length is constant instead of getting encoded in the data. Extended otBase to support such arrays.
2017-08-24 08:54:27 +02:00
sys.exit(unittest.main())
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