121 lines
3.3 KiB
Python
121 lines
3.3 KiB
Python
import io
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import os
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import re
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from fontTools.ttLib import TTFont, newTable, registerCustomTableClass, unregisterCustomTableClass
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from fontTools.ttLib.tables.DefaultTable import DefaultTable
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DATA_DIR = os.path.join(os.path.abspath(os.path.dirname(__file__)), "data")
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class CustomTableClass(DefaultTable):
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def decompile(self, data, ttFont):
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self.numbers = list(data)
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def compile(self, ttFont):
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return bytes(self.numbers)
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# not testing XML read/write
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table_C_U_S_T_ = CustomTableClass # alias for testing
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TABLETAG = "CUST"
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def normalize_TTX(string):
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string = re.sub(' ttLibVersion=".*"', "", string)
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string = re.sub('checkSumAdjustment value=".*"', "", string)
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string = re.sub('modified value=".*"', "", string)
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return string
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def test_registerCustomTableClass():
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font = TTFont()
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font[TABLETAG] = newTable(TABLETAG)
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font[TABLETAG].data = b"\x00\x01\xff"
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f = io.BytesIO()
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font.save(f)
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f.seek(0)
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assert font[TABLETAG].data == b"\x00\x01\xff"
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registerCustomTableClass(TABLETAG, "ttFont_test", "CustomTableClass")
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try:
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font = TTFont(f)
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assert font[TABLETAG].numbers == [0, 1, 255]
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assert font[TABLETAG].compile(font) == b"\x00\x01\xff"
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finally:
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unregisterCustomTableClass(TABLETAG)
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def test_registerCustomTableClassStandardName():
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registerCustomTableClass(TABLETAG, "ttFont_test")
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try:
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font = TTFont()
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font[TABLETAG] = newTable(TABLETAG)
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font[TABLETAG].numbers = [4, 5, 6]
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assert font[TABLETAG].compile(font) == b"\x04\x05\x06"
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finally:
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unregisterCustomTableClass(TABLETAG)
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ttxTTF = r"""<?xml version="1.0" encoding="UTF-8"?>
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<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="4.9.0">
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<hmtx>
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<mtx name=".notdef" width="300" lsb="0"/>
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</hmtx>
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</ttFont>
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"""
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ttxOTF = """<?xml version="1.0" encoding="UTF-8"?>
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<ttFont sfntVersion="OTTO" ttLibVersion="4.9.0">
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<hmtx>
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<mtx name=".notdef" width="300" lsb="0"/>
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</hmtx>
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</ttFont>
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"""
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def test_sfntVersionFromTTX():
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# https://github.com/fonttools/fonttools/issues/2370
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font = TTFont()
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assert font.sfntVersion == "\x00\x01\x00\x00"
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ttx = io.StringIO(ttxOTF)
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# Font is "empty", TTX file will determine sfntVersion
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font.importXML(ttx)
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assert font.sfntVersion == "OTTO"
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ttx = io.StringIO(ttxTTF)
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# Font is not "empty", sfntVersion in TTX file will be ignored
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font.importXML(ttx)
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assert font.sfntVersion == "OTTO"
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def test_virtualGlyphId():
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otfpath = os.path.join(DATA_DIR, "TestVGID-Regular.otf")
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ttxpath = os.path.join(DATA_DIR, "TestVGID-Regular.ttx")
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otf = TTFont(otfpath)
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ttx = TTFont()
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ttx.importXML(ttxpath)
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with open(ttxpath, encoding="utf-8") as fp:
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xml = normalize_TTX(fp.read()).splitlines()
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for font in (otf, ttx):
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GSUB = font["GSUB"].table
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assert GSUB.LookupList.LookupCount == 37
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lookup = GSUB.LookupList.Lookup[32]
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assert lookup.LookupType == 8
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subtable = lookup.SubTable[0]
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assert subtable.LookAheadGlyphCount == 1
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lookahead = subtable.LookAheadCoverage[0]
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assert len(lookahead.glyphs) == 46
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assert "glyph00453" in lookahead.glyphs
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out = io.StringIO()
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font.saveXML(out)
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outxml = normalize_TTX(out.getvalue()).splitlines()
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assert xml == outxml
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