コード例 #1
0
ファイル: outlineOTF.py プロジェクト: yphc/ufo2fdk
    def setupTable_head(self):
        """
        Make the head table.

        **This should not be called externally.** Subclasses
        may override or supplement this method to handle the
        table creation in a different way if desired.
        """
        self.otf["head"] = head = newTable("head")
        font = self.ufo
        head.checkSumAdjustment = 0
        head.tableVersion = 1.0
        versionMajor = getAttrWithFallback(font.info, "versionMajor")
        versionMinor = getAttrWithFallback(font.info, "versionMinor") * .001
        head.fontRevision = versionMajor + versionMinor
        head.magicNumber = 0x5F0F3CF5
        # upm
        head.unitsPerEm = getAttrWithFallback(font.info, "unitsPerEm")
        # times
        head.created = dateStringToTimeValue(
            getAttrWithFallback(font.info,
                                "openTypeHeadCreated")) - mac_epoch_diff
        head.modified = dateStringToTimeValue(
            dateStringForNow()) - mac_epoch_diff
        # bounding box
        xMin, yMin, xMax, yMax = self.fontBoundingBox
        head.xMin = xMin
        head.yMin = yMin
        head.xMax = xMax
        head.yMax = yMax
        # style mapping
        styleMapStyleName = getAttrWithFallback(font.info, "styleMapStyleName")
        macStyle = []
        if styleMapStyleName == "bold":
            macStyle = [0]
        elif styleMapStyleName == "bold italic":
            macStyle = [0, 1]
        elif styleMapStyleName == "italic":
            macStyle = [1]
        head.macStyle = intListToNum(macStyle, 0, 16)
        # misc
        head.flags = intListToNum(
            getAttrWithFallback(font.info, "openTypeHeadFlags"), 0, 16)
        head.lowestRecPPEM = _roundInt(
            getAttrWithFallback(font.info, "openTypeHeadLowestRecPPEM"))
        head.fontDirectionHint = 2
        head.indexToLocFormat = 0
        head.glyphDataFormat = 0
コード例 #2
0
ファイル: outlineOTF.py プロジェクト: anthrotype/ufo2fdk
    def setupTable_head(self):
        """
        Make the head table.

        **This should not be called externally.** Subclasses
        may override or supplement this method to handle the
        table creation in a different way if desired.
        """
        self.otf["head"] = head = newTable("head")
        font = self.ufo
        head.checkSumAdjustment = 0
        head.tableVersion = 1.0
        versionMajor = getAttrWithFallback(font.info, "versionMajor")
        versionMinor = getAttrWithFallback(font.info, "versionMinor") * .001
        head.fontRevision = versionMajor + versionMinor
        head.magicNumber = 0x5F0F3CF5
        # upm
        head.unitsPerEm = getAttrWithFallback(font.info, "unitsPerEm")
        # times
        head.created = dateStringToTimeValue(getAttrWithFallback(font.info, "openTypeHeadCreated")) - mac_epoch_diff
        head.modified = dateStringToTimeValue(dateStringForNow()) - mac_epoch_diff
        # bounding box
        xMin, yMin, xMax, yMax = self.fontBoundingBox
        head.xMin = xMin
        head.yMin = yMin
        head.xMax = xMax
        head.yMax = yMax
        # style mapping
        styleMapStyleName = getAttrWithFallback(font.info, "styleMapStyleName")
        macStyle = []
        if styleMapStyleName == "bold":
            macStyle = [0]
        elif styleMapStyleName == "bold italic":
            macStyle = [0, 1]
        elif styleMapStyleName == "italic":
            macStyle = [1]
        head.macStyle = intListToNum(macStyle, 0, 16)
        # misc
        head.flags = intListToNum(getAttrWithFallback(font.info, "openTypeHeadFlags"), 0, 16)
        head.lowestRecPPEM = _roundInt(getAttrWithFallback(font.info, "openTypeHeadLowestRecPPEM"))
        head.fontDirectionHint = 2
        head.indexToLocFormat = 0
        head.glyphDataFormat = 0
コード例 #3
0
ファイル: makeotfParts.py プロジェクト: anthrotype/ufo2fdk
    def writeFeatures_OS2(self):
        """
        Write the OS/2 to a string and return it.

        This gets the values for the file using the fallback
        system as described below:

        =============  ===
        FSType         openTypeOS2Type
        Panose         openTypeOS2Panose
        UnicodeRange   openTypeOS2UnicodeRanges
        CodePageRange  openTypeOS2CodePageRanges
        TypoAscender   openTypeOS2TypoAscender
        TypoDescender  openTypeOS2TypoDescender
        TypoLineGap    openTypeOS2TypoLineGap
        winAscent      openTypeOS2WinAscent
        winDescent     openTypeOS2WinDescent
        XHeight        xHeight
        CapHeight      capHeight
        WeightClass    openTypeOS2WeightClass
        WidthClass     openTypeOS2WidthClass
        Vendor         openTypeOS2VendorID
        =============  ===

        **This should not be called externally.** Subclasses
        may override this method to handle the string creation
        in a different way if desired.
        """
        codePageBitTranslation = {
            0  : "1252",
            1  : "1250",
            2  : "1251",
            3  : "1253",
            4  : "1254",
            5  : "1255",
            6  : "1256",
            7  : "1257",
            8  : "1258",
            16 : "874",
            17 : "932",
            18 : "936",
            19 : "949",
            20 : "950",
            21 : "1361",
            48 : "869",
            49 : "866",
            50 : "865",
            51 : "864",
            52 : "863",
            53 : "862",
            54 : "861",
            55 : "860",
            56 : "857",
            57 : "855",
            58 : "852",
            59 : "775",
            60 : "737",
            61 : "708",
            62 : "850",
            63 : "437"
        }
        # writer
        writer = FeatureTableWriter("OS/2")
        # type
        writer.addLineWithKeyValue("FSType", intListToNum(getAttrWithFallback(self.font.info, "openTypeOS2Type"), 0, 16))
        # panose
        panose = [str(i) for i in getAttrWithFallback(self.font.info, "openTypeOS2Panose")]
        writer.addLineWithKeyValue("Panose", " ".join(panose))
        # unicode ranges
        unicodeRange = [str(i) for i in getAttrWithFallback(self.font.info, "openTypeOS2UnicodeRanges")]
        if unicodeRange:
            writer.addLineWithKeyValue("UnicodeRange", " ".join(unicodeRange))
        # code page ranges
        codePageRange = [codePageBitTranslation[i] for i in getAttrWithFallback(self.font.info, "openTypeOS2CodePageRanges") if i in codePageBitTranslation]
        if codePageRange:
            writer.addLineWithKeyValue("CodePageRange", " ".join(codePageRange))
        # vertical metrics
        writer.addLineWithKeyValue("TypoAscender", _roundInt(getAttrWithFallback(self.font.info, "openTypeOS2TypoAscender")))
        writer.addLineWithKeyValue("TypoDescender", _roundInt(getAttrWithFallback(self.font.info, "openTypeOS2TypoDescender")))
        writer.addLineWithKeyValue("TypoLineGap", _roundInt(getAttrWithFallback(self.font.info, "openTypeOS2TypoLineGap")))
        writer.addLineWithKeyValue("winAscent", _roundInt(getAttrWithFallback(self.font.info, "openTypeOS2WinAscent")))
        writer.addLineWithKeyValue("winDescent", abs(_roundInt(getAttrWithFallback(self.font.info, "openTypeOS2WinDescent"))))
        writer.addLineWithKeyValue("XHeight", _roundInt(getAttrWithFallback(self.font.info, "xHeight")))
        writer.addLineWithKeyValue("CapHeight", _roundInt(getAttrWithFallback(self.font.info, "capHeight")))
        writer.addLineWithKeyValue("WeightClass", getAttrWithFallback(self.font.info, "openTypeOS2WeightClass"))
        writer.addLineWithKeyValue("WidthClass", getAttrWithFallback(self.font.info, "openTypeOS2WidthClass"))
        writer.addLineWithKeyValue("Vendor", '"%s"' % getAttrWithFallback(self.font.info, "openTypeOS2VendorID"))
        return writer.write()
コード例 #4
0
ファイル: makeotfParts.py プロジェクト: yphc/ufo2fdk
    def writeFeatures_OS2(self):
        """
        Write the OS/2 to a string and return it.

        This gets the values for the file using the fallback
        system as described below:

        =============  ===
        FSType         openTypeOS2Type
        Panose         openTypeOS2Panose
        UnicodeRange   openTypeOS2UnicodeRanges
        CodePageRange  openTypeOS2CodePageRanges
        TypoAscender   openTypeOS2TypoAscender
        TypoDescender  openTypeOS2TypoDescender
        TypoLineGap    openTypeOS2TypoLineGap
        winAscent      openTypeOS2WinAscent
        winDescent     openTypeOS2WinDescent
        XHeight        xHeight
        CapHeight      capHeight
        WeightClass    openTypeOS2WeightClass
        WidthClass     openTypeOS2WidthClass
        Vendor         openTypeOS2VendorID
        =============  ===

        **This should not be called externally.** Subclasses
        may override this method to handle the string creation
        in a different way if desired.
        """
        codePageBitTranslation = {
            0: "1252",
            1: "1250",
            2: "1251",
            3: "1253",
            4: "1254",
            5: "1255",
            6: "1256",
            7: "1257",
            8: "1258",
            16: "874",
            17: "932",
            18: "936",
            19: "949",
            20: "950",
            21: "1361",
            48: "869",
            49: "866",
            50: "865",
            51: "864",
            52: "863",
            53: "862",
            54: "861",
            55: "860",
            56: "857",
            57: "855",
            58: "852",
            59: "775",
            60: "737",
            61: "708",
            62: "850",
            63: "437"
        }
        # writer
        writer = FeatureTableWriter("OS/2")
        # type
        writer.addLineWithKeyValue(
            "FSType",
            intListToNum(
                getAttrWithFallback(self.font.info, "openTypeOS2Type"), 0, 16))
        # panose
        panose = [
            str(i)
            for i in getAttrWithFallback(self.font.info, "openTypeOS2Panose")
        ]
        writer.addLineWithKeyValue("Panose", " ".join(panose))
        # unicode ranges
        unicodeRange = [
            str(i) for i in getAttrWithFallback(self.font.info,
                                                "openTypeOS2UnicodeRanges")
        ]
        if unicodeRange:
            writer.addLineWithKeyValue("UnicodeRange", " ".join(unicodeRange))
        # code page ranges
        codePageRange = [
            codePageBitTranslation[i] for i in getAttrWithFallback(
                self.font.info, "openTypeOS2CodePageRanges")
            if i in codePageBitTranslation
        ]
        if codePageRange:
            writer.addLineWithKeyValue("CodePageRange",
                                       " ".join(codePageRange))
        # vertical metrics
        writer.addLineWithKeyValue(
            "TypoAscender",
            _roundInt(
                getAttrWithFallback(self.font.info,
                                    "openTypeOS2TypoAscender")))
        writer.addLineWithKeyValue(
            "TypoDescender",
            _roundInt(
                getAttrWithFallback(self.font.info,
                                    "openTypeOS2TypoDescender")))
        writer.addLineWithKeyValue(
            "TypoLineGap",
            _roundInt(
                getAttrWithFallback(self.font.info, "openTypeOS2TypoLineGap")))
        writer.addLineWithKeyValue(
            "winAscent",
            _roundInt(
                getAttrWithFallback(self.font.info, "openTypeOS2WinAscent")))
        writer.addLineWithKeyValue(
            "winDescent",
            abs(
                _roundInt(
                    getAttrWithFallback(self.font.info,
                                        "openTypeOS2WinDescent"))))
        writer.addLineWithKeyValue(
            "XHeight", _roundInt(getAttrWithFallback(self.font.info,
                                                     "xHeight")))
        writer.addLineWithKeyValue(
            "CapHeight",
            _roundInt(getAttrWithFallback(self.font.info, "capHeight")))
        writer.addLineWithKeyValue(
            "WeightClass",
            getAttrWithFallback(self.font.info, "openTypeOS2WeightClass"))
        writer.addLineWithKeyValue(
            "WidthClass",
            getAttrWithFallback(self.font.info, "openTypeOS2WidthClass"))
        writer.addLineWithKeyValue(
            "Vendor", '"%s"' %
            getAttrWithFallback(self.font.info, "openTypeOS2VendorID"))
        return writer.write()
コード例 #5
0
ファイル: outlineOTF.py プロジェクト: yphc/ufo2fdk
    def setupTable_OS2(self):
        """
        Make the OS/2 table.

        **This should not be called externally.** Subclasses
        may override or supplement this method to handle the
        table creation in a different way if desired.
        """
        self.otf["OS/2"] = os2 = newTable("OS/2")
        font = self.ufo
        os2.version = 0x0004
        # average glyph width
        widths = [
            glyph.width for glyph in self.allGlyphs.values() if glyph.width > 0
        ]
        os2.xAvgCharWidth = _roundInt(sum(widths) / len(widths))
        # weight and width classes
        os2.usWeightClass = getAttrWithFallback(font.info,
                                                "openTypeOS2WeightClass")
        os2.usWidthClass = getAttrWithFallback(font.info,
                                               "openTypeOS2WidthClass")
        # embedding
        os2.fsType = intListToNum(
            getAttrWithFallback(font.info, "openTypeOS2Type"), 0, 16)
        # subscript
        v = getAttrWithFallback(font.info, "openTypeOS2SubscriptXSize")
        if v is None:
            v = 0
        os2.ySubscriptXSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SubscriptYSize")
        if v is None:
            v = 0
        os2.ySubscriptYSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SubscriptXOffset")
        if v is None:
            v = 0
        os2.ySubscriptXOffset = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SubscriptYOffset")
        if v is None:
            v = 0
        os2.ySubscriptYOffset = _roundInt(v)
        # superscript
        v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptXSize")
        if v is None:
            v = 0
        os2.ySuperscriptXSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptYSize")
        if v is None:
            v = 0
        os2.ySuperscriptYSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptXOffset")
        if v is None:
            v = 0
        os2.ySuperscriptXOffset = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptYOffset")
        if v is None:
            v = 0
        os2.ySuperscriptYOffset = _roundInt(v)
        # strikeout
        v = getAttrWithFallback(font.info, "openTypeOS2StrikeoutSize")
        if v is None:
            v = 0
        os2.yStrikeoutSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2StrikeoutPosition")
        if v is None:
            v = 0
        os2.yStrikeoutPosition = _roundInt(v)
        # family class
        os2.sFamilyClass = 0  # XXX not sure how to create the appropriate value
        # panose
        data = getAttrWithFallback(font.info, "openTypeOS2Panose")
        panose = Panose()
        panose.bFamilyType = data[0]
        panose.bSerifStyle = data[1]
        panose.bWeight = data[2]
        panose.bProportion = data[3]
        panose.bContrast = data[4]
        panose.bStrokeVariation = data[5]
        panose.bArmStyle = data[6]
        panose.bLetterForm = data[7]
        panose.bMidline = data[8]
        panose.bXHeight = data[9]
        os2.panose = panose
        # Unicode ranges
        uniRanges = getAttrWithFallback(font.info, "openTypeOS2UnicodeRanges")
        os2.ulUnicodeRange1 = intListToNum(uniRanges, 0, 32)
        os2.ulUnicodeRange2 = intListToNum(uniRanges, 32, 32)
        os2.ulUnicodeRange3 = intListToNum(uniRanges, 64, 32)
        os2.ulUnicodeRange4 = intListToNum(uniRanges, 96, 32)
        # codepage ranges
        codepageRanges = getAttrWithFallback(font.info,
                                             "openTypeOS2CodePageRanges")
        os2.ulCodePageRange1 = intListToNum(codepageRanges, 0, 32)
        os2.ulCodePageRange2 = intListToNum(codepageRanges, 32, 32)
        # vendor id
        os2.achVendID = str(
            getAttrWithFallback(font.info, "openTypeOS2VendorID").decode(
                "ascii", "ignore"))
        # vertical metrics
        os2.sxHeight = _roundInt(getAttrWithFallback(font.info, "xHeight"))
        os2.sCapHeight = _roundInt(getAttrWithFallback(font.info, "capHeight"))
        os2.sTypoAscender = _roundInt(
            getAttrWithFallback(font.info, "openTypeOS2TypoAscender"))
        os2.sTypoDescender = _roundInt(
            getAttrWithFallback(font.info, "openTypeOS2TypoDescender"))
        os2.sTypoLineGap = _roundInt(
            getAttrWithFallback(font.info, "openTypeOS2TypoLineGap"))
        os2.usWinAscent = _roundInt(
            getAttrWithFallback(font.info, "openTypeOS2WinAscent"))
        os2.usWinDescent = _roundInt(
            getAttrWithFallback(font.info, "openTypeOS2WinDescent"))
        # style mapping
        selection = list(getAttrWithFallback(font.info,
                                             "openTypeOS2Selection"))
        styleMapStyleName = getAttrWithFallback(font.info, "styleMapStyleName")
        if styleMapStyleName == "regular":
            selection.append(6)
        elif styleMapStyleName == "bold":
            selection.append(5)
        elif styleMapStyleName == "italic":
            selection.append(0)
        elif styleMapStyleName == "bold italic":
            selection += [0, 5]
        os2.fsSelection = intListToNum(selection, 0, 16)
        # characetr indexes
        unicodes = [
            i for i in self.unicodeToGlyphNameMapping.keys() if i is not None
        ]
        if unicodes:
            minIndex = min(unicodes)
            maxIndex = max(unicodes)
        else:
            # the font may have *no* unicode values
            # (it really happens!) so there needs
            # to be a fallback. use space for this.
            minIndex = 0x0020
            maxIndex = 0x0020
        if maxIndex > 0xFFFF:
            # the spec says that 0xFFFF should be used
            # as the max if the max exceeds 0xFFFF
            maxIndex = 0xFFFF
        os2.fsFirstCharIndex = minIndex
        os2.fsLastCharIndex = maxIndex
        os2.usBreakChar = 32
        os2.usDefaultChar = 0
        # maximum contextual lookup length
        os2.usMaxContex = 0
コード例 #6
0
ファイル: outlineOTF.py プロジェクト: anthrotype/ufo2fdk
    def setupTable_OS2(self):
        """
        Make the OS/2 table.

        **This should not be called externally.** Subclasses
        may override or supplement this method to handle the
        table creation in a different way if desired.
        """
        self.otf["OS/2"] = os2 = newTable("OS/2")
        font = self.ufo
        os2.version = 0x0004
        # average glyph width
        widths = [glyph.width for glyph in self.allGlyphs.values() if glyph.width > 0]
        os2.xAvgCharWidth = _roundInt(sum(widths) / len(widths))
        # weight and width classes
        os2.usWeightClass = getAttrWithFallback(font.info, "openTypeOS2WeightClass")
        os2.usWidthClass = getAttrWithFallback(font.info, "openTypeOS2WidthClass")
        # embedding
        os2.fsType = intListToNum(getAttrWithFallback(font.info, "openTypeOS2Type"), 0, 16)
        # subscript
        v = getAttrWithFallback(font.info, "openTypeOS2SubscriptXSize")
        if v is None:
            v = 0
        os2.ySubscriptXSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SubscriptYSize")
        if v is None:
            v = 0
        os2.ySubscriptYSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SubscriptXOffset")
        if v is None:
            v = 0
        os2.ySubscriptXOffset = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SubscriptYOffset")
        if v is None:
            v = 0
        os2.ySubscriptYOffset = _roundInt(v)
        # superscript
        v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptXSize")
        if v is None:
            v = 0
        os2.ySuperscriptXSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptYSize")
        if v is None:
            v = 0
        os2.ySuperscriptYSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptXOffset")
        if v is None:
            v = 0
        os2.ySuperscriptXOffset = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptYOffset")
        if v is None:
            v = 0
        os2.ySuperscriptYOffset = _roundInt(v)
        # strikeout
        v = getAttrWithFallback(font.info, "openTypeOS2StrikeoutSize")
        if v is None:
            v = 0
        os2.yStrikeoutSize = _roundInt(v)
        v = getAttrWithFallback(font.info, "openTypeOS2StrikeoutPosition")
        if v is None:
            v = 0
        os2.yStrikeoutPosition = _roundInt(v)
        # family class
        os2.sFamilyClass = 0 # XXX not sure how to create the appropriate value
        # panose
        data = getAttrWithFallback(font.info, "openTypeOS2Panose")
        panose = Panose()
        panose.bFamilyType = data[0]
        panose.bSerifStyle = data[1]
        panose.bWeight = data[2]
        panose.bProportion = data[3]
        panose.bContrast = data[4]
        panose.bStrokeVariation = data[5]
        panose.bArmStyle = data[6]
        panose.bLetterForm = data[7]
        panose.bMidline = data[8]
        panose.bXHeight = data[9]
        os2.panose = panose
        # Unicode ranges
        uniRanges = getAttrWithFallback(font.info, "openTypeOS2UnicodeRanges")
        os2.ulUnicodeRange1 = intListToNum(uniRanges, 0, 32)
        os2.ulUnicodeRange2 = intListToNum(uniRanges, 32, 32)
        os2.ulUnicodeRange3 = intListToNum(uniRanges, 64, 32)
        os2.ulUnicodeRange4 = intListToNum(uniRanges, 96, 32)
        # codepage ranges
        codepageRanges = getAttrWithFallback(font.info, "openTypeOS2CodePageRanges")
        os2.ulCodePageRange1 = intListToNum(codepageRanges, 0, 32)
        os2.ulCodePageRange2 = intListToNum(codepageRanges, 32, 32)
        # vendor id
        os2.achVendID = str(getAttrWithFallback(font.info, "openTypeOS2VendorID").decode("ascii", "ignore"))
        # vertical metrics
        os2.sxHeight = _roundInt(getAttrWithFallback(font.info, "xHeight"))
        os2.sCapHeight = _roundInt(getAttrWithFallback(font.info, "capHeight"))
        os2.sTypoAscender = _roundInt(getAttrWithFallback(font.info, "openTypeOS2TypoAscender"))
        os2.sTypoDescender = _roundInt(getAttrWithFallback(font.info, "openTypeOS2TypoDescender"))
        os2.sTypoLineGap = _roundInt(getAttrWithFallback(font.info, "openTypeOS2TypoLineGap"))
        os2.usWinAscent = _roundInt(getAttrWithFallback(font.info, "openTypeOS2WinAscent"))
        os2.usWinDescent = _roundInt(getAttrWithFallback(font.info, "openTypeOS2WinDescent"))
        # style mapping
        selection = list(getAttrWithFallback(font.info, "openTypeOS2Selection"))
        styleMapStyleName = getAttrWithFallback(font.info, "styleMapStyleName")
        if styleMapStyleName == "regular":
            selection.append(6)
        elif styleMapStyleName == "bold":
            selection.append(5)
        elif styleMapStyleName == "italic":
            selection.append(0)
        elif styleMapStyleName == "bold italic":
            selection += [0, 5]
        os2.fsSelection = intListToNum(selection, 0, 16)
        # characetr indexes
        unicodes = [i for i in self.unicodeToGlyphNameMapping.keys() if i is not None]
        if unicodes:
            minIndex = min(unicodes)
            maxIndex = max(unicodes)
        else:
            # the font may have *no* unicode values
            # (it really happens!) so there needs
            # to be a fallback. use space for this.
            minIndex = 0x0020
            maxIndex = 0x0020
        if maxIndex > 0xFFFF:
            # the spec says that 0xFFFF should be used
            # as the max if the max exceeds 0xFFFF
            maxIndex = 0xFFFF
        os2.fsFirstCharIndex = minIndex
        os2.fsLastCharIndex = maxIndex
        os2.usBreakChar = 32
        os2.usDefaultChar = 0
        # maximum contextual lookup length
        os2.usMaxContex = 0