# Source code for fontTools.ttLib.tables.O_S_2f_2

    from fontTools.misc import sstruct
    from fontTools.misc.roundTools import otRound
    from fontTools.misc.textTools import safeEval, num2binary, binary2num
    from fontTools.ttLib.tables import DefaultTable
    import bisect
    import logging

    log = logging.getLogger(__name__)

    # panose classification

    panoseFormat = """
    	bFamilyType:        B
    	bSerifStyle:        B
    	bWeight:            B
    	bProportion:        B
    	bContrast:          B
    	bStrokeVariation:   B
    	bArmStyle:          B
    	bLetterForm:        B
    	bMidline:           B
    	bXHeight:           B
    """

    class Panose(object):

    	def toXML(self, writer, ttFont):
    		formatstring, names, fixes = sstruct.getformat(panoseFormat)
    		for name in names:
    			writer.simpletag(name, value=getattr(self, name))
    			writer.newline()

    	def fromXML(self, name, attrs, content, ttFont):
    		setattr(self, name, safeEval(attrs["value"]))

    # 'sfnt' OS/2 and Windows Metrics table - 'OS/2'

    OS2_format_0 = """
    	>   # big endian
    	version:                H       # version
    	xAvgCharWidth:          h       # average character width
    	usWeightClass:          H       # degree of thickness of strokes
    	usWidthClass:           H       # aspect ratio
    	fsType:                 H       # type flags
    	ySubscriptXSize:        h       # subscript horizontal font size
    	ySubscriptYSize:        h       # subscript vertical font size
    	ySubscriptXOffset:      h       # subscript x offset
    	ySubscriptYOffset:      h       # subscript y offset
    	ySuperscriptXSize:      h       # superscript horizontal font size
    	ySuperscriptYSize:      h       # superscript vertical font size
    	ySuperscriptXOffset:    h       # superscript x offset
    	ySuperscriptYOffset:    h       # superscript y offset
    	yStrikeoutSize:         h       # strikeout size
    	yStrikeoutPosition:     h       # strikeout position
    	sFamilyClass:           h       # font family class and subclass
    	panose:                 10s     # panose classification number
    	ulUnicodeRange1:        L       # character range
    	ulUnicodeRange2:        L       # character range
    	ulUnicodeRange3:        L       # character range
    	ulUnicodeRange4:        L       # character range
    	achVendID:              4s      # font vendor identification
    	fsSelection:            H       # font selection flags
    	usFirstCharIndex:       H       # first unicode character index
    	usLastCharIndex:        H       # last unicode character index
    	sTypoAscender:          h       # typographic ascender
    	sTypoDescender:         h       # typographic descender
    	sTypoLineGap:           h       # typographic line gap
    	usWinAscent:            H       # Windows ascender
    	usWinDescent:           H       # Windows descender
    """

    OS2_format_1_addition =  """
    	ulCodePageRange1:   L
    	ulCodePageRange2:   L
    """

    OS2_format_2_addition =  OS2_format_1_addition + """
    	sxHeight:           h
    	sCapHeight:         h
    	usDefaultChar:      H
    	usBreakChar:        H
    	usMaxContext:       H
    """

    OS2_format_5_addition =  OS2_format_2_addition + """
    	usLowerOpticalPointSize:    H
    	usUpperOpticalPointSize:    H
    """

    bigendian = "	>	# big endian\n"

    OS2_format_1 = OS2_format_0 + OS2_format_1_addition
    OS2_format_2 = OS2_format_0 + OS2_format_2_addition
    OS2_format_5 = OS2_format_0 + OS2_format_5_addition
    OS2_format_1_addition = bigendian + OS2_format_1_addition
    OS2_format_2_addition = bigendian + OS2_format_2_addition
    OS2_format_5_addition = bigendian + OS2_format_5_addition

    class table_O_S_2f_2(DefaultTable.DefaultTable):

    	"""the OS/2 table"""

    	dependencies = ["head"]

    	def decompile(self, data, ttFont):
    		dummy, data = sstruct.unpack2(OS2_format_0, data, self)

    		if self.version == 1:
    			dummy, data = sstruct.unpack2(OS2_format_1_addition, data, self)
    		elif self.version in (2, 3, 4):
    			dummy, data = sstruct.unpack2(OS2_format_2_addition, data, self)
    		elif self.version == 5:
    			dummy, data = sstruct.unpack2(OS2_format_5_addition, data, self)
    			self.usLowerOpticalPointSize /= 20
    			self.usUpperOpticalPointSize /= 20
    		elif self.version != 0:
    			from fontTools import ttLib
    			raise ttLib.TTLibError("unknown format for OS/2 table: version %s" % self.version)
    		if len(data):
    			log.warning("too much 'OS/2' table data")

    		self.panose = sstruct.unpack(panoseFormat, self.panose, Panose())

    	def compile(self, ttFont):
    		self.updateFirstAndLastCharIndex(ttFont)
    		panose = self.panose
    		head = ttFont["head"]
    		if (self.fsSelection & 1) and not (head.macStyle & 1<<1):
    			log.warning("fsSelection bit 0 (italic) and "
    				"head table macStyle bit 1 (italic) should match")
    		if (self.fsSelection & 1<<5) and not (head.macStyle & 1):
    			log.warning("fsSelection bit 5 (bold) and "
    				"head table macStyle bit 0 (bold) should match")
    		if (self.fsSelection & 1<<6) and (self.fsSelection & 1 + (1<<5)):
    			log.warning("fsSelection bit 6 (regular) is set, "
    				"bits 0 (italic) and 5 (bold) must be clear")
    		if self.version < 4 and self.fsSelection & 0b1110000000:
    			log.warning("fsSelection bits 7, 8 and 9 are only defined in "
    				"OS/2 table version 4 and up: version %s", self.version)
    		self.panose = sstruct.pack(panoseFormat, self.panose)
    		if self.version == 0:
    			data = sstruct.pack(OS2_format_0, self)
    		elif self.version == 1:
    			data = sstruct.pack(OS2_format_1, self)
    		elif self.version in (2, 3, 4):
    			data = sstruct.pack(OS2_format_2, self)
    		elif self.version == 5:
    			d = self.__dict__.copy()
    			d['usLowerOpticalPointSize'] = round(self.usLowerOpticalPointSize * 20)
    			d['usUpperOpticalPointSize'] = round(self.usUpperOpticalPointSize * 20)
    			data = sstruct.pack(OS2_format_5, d)
    		else:
    			from fontTools import ttLib
    			raise ttLib.TTLibError("unknown format for OS/2 table: version %s" % self.version)
    		self.panose = panose
    		return data

    	def toXML(self, writer, ttFont):
    		writer.comment(
    			"The fields 'usFirstCharIndex' and 'usLastCharIndex'\n"
    			"will be recalculated by the compiler")
    		writer.newline()
    		if self.version == 1:
    			format = OS2_format_1
    		elif self.version in (2, 3, 4):
    			format = OS2_format_2
    		elif self.version == 5:
    			format = OS2_format_5
    		else:
    			format = OS2_format_0
    		formatstring, names, fixes = sstruct.getformat(format)
    		for name in names:
    			value = getattr(self, name)
    			if name=="panose":
    				writer.begintag("panose")
    				writer.newline()
    				value.toXML(writer, ttFont)
    				writer.endtag("panose")
    			elif name in ("ulUnicodeRange1", "ulUnicodeRange2",
    					"ulUnicodeRange3", "ulUnicodeRange4",
    					"ulCodePageRange1", "ulCodePageRange2"):
    				writer.simpletag(name, value=num2binary(value))
    			elif name in ("fsType", "fsSelection"):
    				writer.simpletag(name, value=num2binary(value, 16))
    			elif name == "achVendID":
    				writer.simpletag(name, value=repr(value)[1:-1])
    			else:
    				writer.simpletag(name, value=value)
    			writer.newline()

    	def fromXML(self, name, attrs, content, ttFont):
    		if name == "panose":
    			self.panose = panose = Panose()
    			for element in content:
    				if isinstance(element, tuple):
    					name, attrs, content = element
    					panose.fromXML(name, attrs, content, ttFont)
    		elif name in ("ulUnicodeRange1", "ulUnicodeRange2",
    				"ulUnicodeRange3", "ulUnicodeRange4",
    				"ulCodePageRange1", "ulCodePageRange2",
    				"fsType", "fsSelection"):
    			setattr(self, name, binary2num(attrs["value"]))
    		elif name == "achVendID":
    			setattr(self, name, safeEval("'''" + attrs["value"] + "'''"))
    		else:
    			setattr(self, name, safeEval(attrs["value"]))

    	def updateFirstAndLastCharIndex(self, ttFont):
    		if 'cmap' not in ttFont:
    			return
    		codes = set()
    		for table in getattr(ttFont['cmap'], 'tables', []):
    			if table.isUnicode():
    				codes.update(table.cmap.keys())
    		if codes:
    			minCode = min(codes)
    			maxCode = max(codes)
    			# USHORT cannot hold codepoints greater than 0xFFFF
    			self.usFirstCharIndex = min(0xFFFF, minCode)
    			self.usLastCharIndex = min(0xFFFF, maxCode)

    	# misspelled attributes kept for legacy reasons

    	@property
    	def usMaxContex(self):
    		return self.usMaxContext

    	@usMaxContex.setter
    	def usMaxContex(self, value):
    		self.usMaxContext = value

    	@property
    	def fsFirstCharIndex(self):
    		return self.usFirstCharIndex

    	@fsFirstCharIndex.setter
    	def fsFirstCharIndex(self, value):
    		self.usFirstCharIndex = value

    	@property
    	def fsLastCharIndex(self):
    		return self.usLastCharIndex

    	@fsLastCharIndex.setter
    	def fsLastCharIndex(self, value):
    		self.usLastCharIndex = value

    	def getUnicodeRanges(self):
    		""" Return the set of 'ulUnicodeRange*' bits currently enabled. """
    		bits = set()
    		ul1, ul2 = self.ulUnicodeRange1, self.ulUnicodeRange2
    		ul3, ul4 = self.ulUnicodeRange3, self.ulUnicodeRange4
    		for i in range(32):
    			if ul1 & (1 << i):
    				bits.add(i)
    			if ul2 & (1 << i):
    				bits.add(i + 32)
    			if ul3 & (1 << i):
    				bits.add(i + 64)
    			if ul4 & (1 << i):
    				bits.add(i + 96)
    		return bits

    	def setUnicodeRanges(self, bits):
    		""" Set the 'ulUnicodeRange*' fields to the specified 'bits'. """
    		ul1, ul2, ul3, ul4 = 0, 0, 0, 0
    		for bit in bits:
    			if 0 <= bit < 32:
    				ul1 |= (1 << bit)
    			elif 32 <= bit < 64:
    				ul2 |= (1 << (bit - 32))
    			elif 64 <= bit < 96:
    				ul3 |= (1 << (bit - 64))
    			elif 96 <= bit < 123:
    				ul4 |= (1 << (bit - 96))
    			else:
    				raise ValueError('expected 0 <= int <= 122, found: %r' % bit)
    		self.ulUnicodeRange1, self.ulUnicodeRange2 = ul1, ul2
    		self.ulUnicodeRange3, self.ulUnicodeRange4 = ul3, ul4

    	def recalcUnicodeRanges(self, ttFont, pruneOnly=False):
    		""" Intersect the codepoints in the font's Unicode cmap subtables with
    		the Unicode block ranges defined in the OpenType specification (v1.7),
    		and set the respective 'ulUnicodeRange*' bits if there is at least ONE
    		intersection.
    		If 'pruneOnly' is True, only clear unused bits with NO intersection.
    		"""
    		unicodes = set()
    		for table in ttFont['cmap'].tables:
    			if table.isUnicode():
    				unicodes.update(table.cmap.keys())
    		if pruneOnly:
    			empty = intersectUnicodeRanges(unicodes, inverse=True)
    			bits = self.getUnicodeRanges() - empty
    		else:
    			bits = intersectUnicodeRanges(unicodes)
    		self.setUnicodeRanges(bits)
    		return bits

    	def recalcAvgCharWidth(self, ttFont):
    		"""Recalculate xAvgCharWidth using metrics from ttFont's 'hmtx' table.

    		Set it to 0 if the unlikely event 'hmtx' table is not found.
    		"""
    		avg_width = 0
    		hmtx = ttFont.get("hmtx")
    		if hmtx:
    			widths = [m[0] for m in hmtx.metrics.values() if m[0] > 0]
    			avg_width = otRound(sum(widths) / len(widths))
    		self.xAvgCharWidth = avg_width
    		return avg_width

    # Unicode ranges data from the OpenType OS/2 table specification v1.7

    OS2_UNICODE_RANGES = (
    	(('Basic Latin',                              (0x0000, 0x007F)),),
    	(('Latin-1 Supplement',                       (0x0080, 0x00FF)),),
    	(('Latin Extended-A',                         (0x0100, 0x017F)),),
    	(('Latin Extended-B',                         (0x0180, 0x024F)),),
    	(('IPA Extensions',                           (0x0250, 0x02AF)),
    	 ('Phonetic Extensions',                      (0x1D00, 0x1D7F)),
    	 ('Phonetic Extensions Supplement',           (0x1D80, 0x1DBF))),
    	(('Spacing Modifier Letters',                 (0x02B0, 0x02FF)),
    	 ('Modifier Tone Letters',                    (0xA700, 0xA71F))),
    	(('Combining Diacritical Marks',              (0x0300, 0x036F)),
    	 ('Combining Diacritical Marks Supplement',   (0x1DC0, 0x1DFF))),
    	(('Greek and Coptic',                         (0x0370, 0x03FF)),),
    	(('Coptic',                                   (0x2C80, 0x2CFF)),),
    	(('Cyrillic',                                 (0x0400, 0x04FF)),
    	 ('Cyrillic Supplement',                      (0x0500, 0x052F)),
    	 ('Cyrillic Extended-A',                      (0x2DE0, 0x2DFF)),
    	 ('Cyrillic Extended-B',                      (0xA640, 0xA69F))),
    	(('Armenian',                                 (0x0530, 0x058F)),),
    	(('Hebrew',                                   (0x0590, 0x05FF)),),
    	(('Vai',                                      (0xA500, 0xA63F)),),
    	(('Arabic',                                   (0x0600, 0x06FF)),
    	 ('Arabic Supplement',                        (0x0750, 0x077F))),
    	(('NKo',                                      (0x07C0, 0x07FF)),),
    	(('Devanagari',                               (0x0900, 0x097F)),),
    	(('Bengali',                                  (0x0980, 0x09FF)),),
    	(('Gurmukhi',                                 (0x0A00, 0x0A7F)),),
    	(('Gujarati',                                 (0x0A80, 0x0AFF)),),
    	(('Oriya',                                    (0x0B00, 0x0B7F)),),
    	(('Tamil',                                    (0x0B80, 0x0BFF)),),
    	(('Telugu',                                   (0x0C00, 0x0C7F)),),
    	(('Kannada',                                  (0x0C80, 0x0CFF)),),
    	(('Malayalam',                                (0x0D00, 0x0D7F)),),
    	(('Thai',                                     (0x0E00, 0x0E7F)),),
    	(('Lao',                                      (0x0E80, 0x0EFF)),),
    	(('Georgian',                                 (0x10A0, 0x10FF)),
    	 ('Georgian Supplement',                      (0x2D00, 0x2D2F))),
    	(('Balinese',                                 (0x1B00, 0x1B7F)),),
    	(('Hangul Jamo',                              (0x1100, 0x11FF)),),
    	(('Latin Extended Additional',                (0x1E00, 0x1EFF)),
    	 ('Latin Extended-C',                         (0x2C60, 0x2C7F)),
    	 ('Latin Extended-D',                         (0xA720, 0xA7FF))),
    	(('Greek Extended',                           (0x1F00, 0x1FFF)),),
    	(('General Punctuation',                      (0x2000, 0x206F)),
    	 ('Supplemental Punctuation',                 (0x2E00, 0x2E7F))),
    	(('Superscripts And Subscripts',              (0x2070, 0x209F)),),
    	(('Currency Symbols',                         (0x20A0, 0x20CF)),),
    	(('Combining Diacritical Marks For Symbols',  (0x20D0, 0x20FF)),),
    	(('Letterlike Symbols',                       (0x2100, 0x214F)),),
    	(('Number Forms',                             (0x2150, 0x218F)),),
    	(('Arrows',                                   (0x2190, 0x21FF)),
    	 ('Supplemental Arrows-A',                    (0x27F0, 0x27FF)),
    	 ('Supplemental Arrows-B',                    (0x2900, 0x297F)),
    	 ('Miscellaneous Symbols and Arrows',         (0x2B00, 0x2BFF))),
    	(('Mathematical Operators',                   (0x2200, 0x22FF)),
    	 ('Supplemental Mathematical Operators',      (0x2A00, 0x2AFF)),
    	 ('Miscellaneous Mathematical Symbols-A',     (0x27C0, 0x27EF)),
    	 ('Miscellaneous Mathematical Symbols-B',     (0x2980, 0x29FF))),
    	(('Miscellaneous Technical',                  (0x2300, 0x23FF)),),
    	(('Control Pictures',                         (0x2400, 0x243F)),),
    	(('Optical Character Recognition',            (0x2440, 0x245F)),),
    	(('Enclosed Alphanumerics',                   (0x2460, 0x24FF)),),
    	(('Box Drawing',                              (0x2500, 0x257F)),),
    	(('Block Elements',                           (0x2580, 0x259F)),),
    	(('Geometric Shapes',                         (0x25A0, 0x25FF)),),
    	(('Miscellaneous Symbols',                    (0x2600, 0x26FF)),),
    	(('Dingbats',                                 (0x2700, 0x27BF)),),
    	(('CJK Symbols And Punctuation',              (0x3000, 0x303F)),),
    	(('Hiragana',                                 (0x3040, 0x309F)),),
    	(('Katakana',                                 (0x30A0, 0x30FF)),
    	 ('Katakana Phonetic Extensions',             (0x31F0, 0x31FF))),
    	(('Bopomofo',                                 (0x3100, 0x312F)),
    	 ('Bopomofo Extended',                        (0x31A0, 0x31BF))),
    	(('Hangul Compatibility Jamo',                (0x3130, 0x318F)),),
    	(('Phags-pa',                                 (0xA840, 0xA87F)),),
    	(('Enclosed CJK Letters And Months',          (0x3200, 0x32FF)),),
    	(('CJK Compatibility',                        (0x3300, 0x33FF)),),
    	(('Hangul Syllables',                         (0xAC00, 0xD7AF)),),
    	(('Non-Plane 0 *',                            (0xD800, 0xDFFF)),),
    	(('Phoenician',                               (0x10900, 0x1091F)),),
    	(('CJK Unified Ideographs',                   (0x4E00, 0x9FFF)),
    	 ('CJK Radicals Supplement',                  (0x2E80, 0x2EFF)),
    	 ('Kangxi Radicals',                          (0x2F00, 0x2FDF)),
    	 ('Ideographic Description Characters',       (0x2FF0, 0x2FFF)),
    	 ('CJK Unified Ideographs Extension A',       (0x3400, 0x4DBF)),
    	 ('CJK Unified Ideographs Extension B',       (0x20000, 0x2A6DF)),
    	 ('Kanbun',                                   (0x3190, 0x319F))),
    	(('Private Use Area (plane 0)',               (0xE000, 0xF8FF)),),
    	(('CJK Strokes',                              (0x31C0, 0x31EF)),
    	 ('CJK Compatibility Ideographs',             (0xF900, 0xFAFF)),
    	 ('CJK Compatibility Ideographs Supplement',  (0x2F800, 0x2FA1F))),
    	(('Alphabetic Presentation Forms',            (0xFB00, 0xFB4F)),),
    	(('Arabic Presentation Forms-A',              (0xFB50, 0xFDFF)),),
    	(('Combining Half Marks',                     (0xFE20, 0xFE2F)),),
    	(('Vertical Forms',                           (0xFE10, 0xFE1F)),
    	 ('CJK Compatibility Forms',                  (0xFE30, 0xFE4F))),
    	(('Small Form Variants',                      (0xFE50, 0xFE6F)),),
    	(('Arabic Presentation Forms-B',              (0xFE70, 0xFEFF)),),
    	(('Halfwidth And Fullwidth Forms',            (0xFF00, 0xFFEF)),),
    	(('Specials',                                 (0xFFF0, 0xFFFF)),),
    	(('Tibetan',                                  (0x0F00, 0x0FFF)),),
    	(('Syriac',                                   (0x0700, 0x074F)),),
    	(('Thaana',                                   (0x0780, 0x07BF)),),
    	(('Sinhala',                                  (0x0D80, 0x0DFF)),),
    	(('Myanmar',                                  (0x1000, 0x109F)),),
    	(('Ethiopic',                                 (0x1200, 0x137F)),
    	 ('Ethiopic Supplement',                      (0x1380, 0x139F)),
    	 ('Ethiopic Extended',                        (0x2D80, 0x2DDF))),
    	(('Cherokee',                                 (0x13A0, 0x13FF)),),
    	(('Unified Canadian Aboriginal Syllabics',    (0x1400, 0x167F)),),
    	(('Ogham',                                    (0x1680, 0x169F)),),
    	(('Runic',                                    (0x16A0, 0x16FF)),),
    	(('Khmer',                                    (0x1780, 0x17FF)),
    	 ('Khmer Symbols',                            (0x19E0, 0x19FF))),
    	(('Mongolian',                                (0x1800, 0x18AF)),),
    	(('Braille Patterns',                         (0x2800, 0x28FF)),),
    	(('Yi Syllables',                             (0xA000, 0xA48F)),
    	 ('Yi Radicals',                              (0xA490, 0xA4CF))),
    	(('Tagalog',                                  (0x1700, 0x171F)),
    	 ('Hanunoo',                                  (0x1720, 0x173F)),
    	 ('Buhid',                                    (0x1740, 0x175F)),
    	 ('Tagbanwa',                                 (0x1760, 0x177F))),
    	(('Old Italic',                               (0x10300, 0x1032F)),),
    	(('Gothic',                                   (0x10330, 0x1034F)),),
    	(('Deseret',                                  (0x10400, 0x1044F)),),
    	(('Byzantine Musical Symbols',                (0x1D000, 0x1D0FF)),
    	 ('Musical Symbols',                          (0x1D100, 0x1D1FF)),
    	 ('Ancient Greek Musical Notation',           (0x1D200, 0x1D24F))),
    	(('Mathematical Alphanumeric Symbols',        (0x1D400, 0x1D7FF)),),
    	(('Private Use (plane 15)',                   (0xF0000, 0xFFFFD)),
    	 ('Private Use (plane 16)',                   (0x100000, 0x10FFFD))),
    	(('Variation Selectors',                      (0xFE00, 0xFE0F)),
    	 ('Variation Selectors Supplement',           (0xE0100, 0xE01EF))),
    	(('Tags',                                     (0xE0000, 0xE007F)),),
    	(('Limbu',                                    (0x1900, 0x194F)),),
    	(('Tai Le',                                   (0x1950, 0x197F)),),
    	(('New Tai Lue',                              (0x1980, 0x19DF)),),
    	(('Buginese',                                 (0x1A00, 0x1A1F)),),
    	(('Glagolitic',                               (0x2C00, 0x2C5F)),),
    	(('Tifinagh',                                 (0x2D30, 0x2D7F)),),
    	(('Yijing Hexagram Symbols',                  (0x4DC0, 0x4DFF)),),
    	(('Syloti Nagri',                             (0xA800, 0xA82F)),),
    	(('Linear B Syllabary',                       (0x10000, 0x1007F)),
    	 ('Linear B Ideograms',                       (0x10080, 0x100FF)),
    	 ('Aegean Numbers',                           (0x10100, 0x1013F))),
    	(('Ancient Greek Numbers',                    (0x10140, 0x1018F)),),
    	(('Ugaritic',                                 (0x10380, 0x1039F)),),
    	(('Old Persian',                              (0x103A0, 0x103DF)),),
    	(('Shavian',                                  (0x10450, 0x1047F)),),
    	(('Osmanya',                                  (0x10480, 0x104AF)),),
    	(('Cypriot Syllabary',                        (0x10800, 0x1083F)),),
    	(('Kharoshthi',                               (0x10A00, 0x10A5F)),),
    	(('Tai Xuan Jing Symbols',                    (0x1D300, 0x1D35F)),),
    	(('Cuneiform',                                (0x12000, 0x123FF)),
    	 ('Cuneiform Numbers and Punctuation',        (0x12400, 0x1247F))),
    	(('Counting Rod Numerals',                    (0x1D360, 0x1D37F)),),
    	(('Sundanese',                                (0x1B80, 0x1BBF)),),
    	(('Lepcha',                                   (0x1C00, 0x1C4F)),),
    	(('Ol Chiki',                                 (0x1C50, 0x1C7F)),),
    	(('Saurashtra',                               (0xA880, 0xA8DF)),),
    	(('Kayah Li',                                 (0xA900, 0xA92F)),),
    	(('Rejang',                                   (0xA930, 0xA95F)),),
    	(('Cham',                                     (0xAA00, 0xAA5F)),),
    	(('Ancient Symbols',                          (0x10190, 0x101CF)),),
    	(('Phaistos Disc',                            (0x101D0, 0x101FF)),),
    	(('Carian',                                   (0x102A0, 0x102DF)),
    	 ('Lycian',                                   (0x10280, 0x1029F)),
    	 ('Lydian',                                   (0x10920, 0x1093F))),
    	(('Domino Tiles',                             (0x1F030, 0x1F09F)),
    	 ('Mahjong Tiles',                            (0x1F000, 0x1F02F))),
    )

    _unicodeStarts = []
    _unicodeValues = [None]

    def _getUnicodeRanges():
    	# build the ranges of codepoints for each unicode range bit, and cache result
    	if not _unicodeStarts:
    		unicodeRanges = [
    			(start, (stop, bit)) for bit, blocks in enumerate(OS2_UNICODE_RANGES)
    			for _, (start, stop) in blocks]
    		for start, (stop, bit) in sorted(unicodeRanges):
    			_unicodeStarts.append(start)
    			_unicodeValues.append((stop, bit))
    	return _unicodeStarts, _unicodeValues

    def intersectUnicodeRanges(unicodes, inverse=False):
    	""" Intersect a sequence of (int) Unicode codepoints with the Unicode block
    	ranges defined in the OpenType specification v1.7, and return the set of
    	'ulUnicodeRanges' bits for which there is at least ONE intersection.
    	If 'inverse' is True, return the the bits for which there is NO intersection.

    	>>> intersectUnicodeRanges([0x0410]) == {9}
    	True
    	>>> intersectUnicodeRanges([0x0410, 0x1F000]) == {9, 57, 122}
    	True
    	>>> intersectUnicodeRanges([0x0410, 0x1F000], inverse=True) == (
    	...     set(range(len(OS2_UNICODE_RANGES))) - {9, 57, 122})
    	True
    	"""
    	unicodes = set(unicodes)
    	unicodestarts, unicodevalues = _getUnicodeRanges()
    	bits = set()
    	for code in unicodes:
    		stop, bit = unicodevalues[bisect.bisect(unicodestarts, code)]
    		if code <= stop:
    			bits.add(bit)
    	# The spec says that bit 57 ("Non Plane 0") implies that there's
    	# at least one codepoint beyond the BMP; so I also include all
    	# the non-BMP codepoints here
    	if any(0x10000 <= code < 0x110000 for code in unicodes):
    		bits.add(57)
    	return set(range(len(OS2_UNICODE_RANGES))) - bits if inverse else bits

    if __name__ == "__main__":
    	import doctest, sys
    	sys.exit(doctest.testmod().failed)