diff --git a/Lib/htmlentitydefs.py b/Lib/htmlentitydefs.py
new file mode 100644
index 0000000..3dd14a7
--- /dev/null
+++ b/Lib/htmlentitydefs.py
@@ -0,0 +1,273 @@
+"""HTML character entity references."""
+
+# maps the HTML entity name to the Unicode codepoint
+name2codepoint = {
+    'AElig':    0x00c6, # latin capital letter AE = latin capital ligature AE, U+00C6 ISOlat1
+    'Aacute':   0x00c1, # latin capital letter A with acute, U+00C1 ISOlat1
+    'Acirc':    0x00c2, # latin capital letter A with circumflex, U+00C2 ISOlat1
+    'Agrave':   0x00c0, # latin capital letter A with grave = latin capital letter A grave, U+00C0 ISOlat1
+    'Alpha':    0x0391, # greek capital letter alpha, U+0391
+    'Aring':    0x00c5, # latin capital letter A with ring above = latin capital letter A ring, U+00C5 ISOlat1
+    'Atilde':   0x00c3, # latin capital letter A with tilde, U+00C3 ISOlat1
+    'Auml':     0x00c4, # latin capital letter A with diaeresis, U+00C4 ISOlat1
+    'Beta':     0x0392, # greek capital letter beta, U+0392
+    'Ccedil':   0x00c7, # latin capital letter C with cedilla, U+00C7 ISOlat1
+    'Chi':      0x03a7, # greek capital letter chi, U+03A7
+    'Dagger':   0x2021, # double dagger, U+2021 ISOpub
+    'Delta':    0x0394, # greek capital letter delta, U+0394 ISOgrk3
+    'ETH':      0x00d0, # latin capital letter ETH, U+00D0 ISOlat1
+    'Eacute':   0x00c9, # latin capital letter E with acute, U+00C9 ISOlat1
+    'Ecirc':    0x00ca, # latin capital letter E with circumflex, U+00CA ISOlat1
+    'Egrave':   0x00c8, # latin capital letter E with grave, U+00C8 ISOlat1
+    'Epsilon':  0x0395, # greek capital letter epsilon, U+0395
+    'Eta':      0x0397, # greek capital letter eta, U+0397
+    'Euml':     0x00cb, # latin capital letter E with diaeresis, U+00CB ISOlat1
+    'Gamma':    0x0393, # greek capital letter gamma, U+0393 ISOgrk3
+    'Iacute':   0x00cd, # latin capital letter I with acute, U+00CD ISOlat1
+    'Icirc':    0x00ce, # latin capital letter I with circumflex, U+00CE ISOlat1
+    'Igrave':   0x00cc, # latin capital letter I with grave, U+00CC ISOlat1
+    'Iota':     0x0399, # greek capital letter iota, U+0399
+    'Iuml':     0x00cf, # latin capital letter I with diaeresis, U+00CF ISOlat1
+    'Kappa':    0x039a, # greek capital letter kappa, U+039A
+    'Lambda':   0x039b, # greek capital letter lambda, U+039B ISOgrk3
+    'Mu':       0x039c, # greek capital letter mu, U+039C
+    'Ntilde':   0x00d1, # latin capital letter N with tilde, U+00D1 ISOlat1
+    'Nu':       0x039d, # greek capital letter nu, U+039D
+    'OElig':    0x0152, # latin capital ligature OE, U+0152 ISOlat2
+    'Oacute':   0x00d3, # latin capital letter O with acute, U+00D3 ISOlat1
+    'Ocirc':    0x00d4, # latin capital letter O with circumflex, U+00D4 ISOlat1
+    'Ograve':   0x00d2, # latin capital letter O with grave, U+00D2 ISOlat1
+    'Omega':    0x03a9, # greek capital letter omega, U+03A9 ISOgrk3
+    'Omicron':  0x039f, # greek capital letter omicron, U+039F
+    'Oslash':   0x00d8, # latin capital letter O with stroke = latin capital letter O slash, U+00D8 ISOlat1
+    'Otilde':   0x00d5, # latin capital letter O with tilde, U+00D5 ISOlat1
+    'Ouml':     0x00d6, # latin capital letter O with diaeresis, U+00D6 ISOlat1
+    'Phi':      0x03a6, # greek capital letter phi, U+03A6 ISOgrk3
+    'Pi':       0x03a0, # greek capital letter pi, U+03A0 ISOgrk3
+    'Prime':    0x2033, # double prime = seconds = inches, U+2033 ISOtech
+    'Psi':      0x03a8, # greek capital letter psi, U+03A8 ISOgrk3
+    'Rho':      0x03a1, # greek capital letter rho, U+03A1
+    'Scaron':   0x0160, # latin capital letter S with caron, U+0160 ISOlat2
+    'Sigma':    0x03a3, # greek capital letter sigma, U+03A3 ISOgrk3
+    'THORN':    0x00de, # latin capital letter THORN, U+00DE ISOlat1
+    'Tau':      0x03a4, # greek capital letter tau, U+03A4
+    'Theta':    0x0398, # greek capital letter theta, U+0398 ISOgrk3
+    'Uacute':   0x00da, # latin capital letter U with acute, U+00DA ISOlat1
+    'Ucirc':    0x00db, # latin capital letter U with circumflex, U+00DB ISOlat1
+    'Ugrave':   0x00d9, # latin capital letter U with grave, U+00D9 ISOlat1
+    'Upsilon':  0x03a5, # greek capital letter upsilon, U+03A5 ISOgrk3
+    'Uuml':     0x00dc, # latin capital letter U with diaeresis, U+00DC ISOlat1
+    'Xi':       0x039e, # greek capital letter xi, U+039E ISOgrk3
+    'Yacute':   0x00dd, # latin capital letter Y with acute, U+00DD ISOlat1
+    'Yuml':     0x0178, # latin capital letter Y with diaeresis, U+0178 ISOlat2
+    'Zeta':     0x0396, # greek capital letter zeta, U+0396
+    'aacute':   0x00e1, # latin small letter a with acute, U+00E1 ISOlat1
+    'acirc':    0x00e2, # latin small letter a with circumflex, U+00E2 ISOlat1
+    'acute':    0x00b4, # acute accent = spacing acute, U+00B4 ISOdia
+    'aelig':    0x00e6, # latin small letter ae = latin small ligature ae, U+00E6 ISOlat1
+    'agrave':   0x00e0, # latin small letter a with grave = latin small letter a grave, U+00E0 ISOlat1
+    'alefsym':  0x2135, # alef symbol = first transfinite cardinal, U+2135 NEW
+    'alpha':    0x03b1, # greek small letter alpha, U+03B1 ISOgrk3
+    'amp':      0x0026, # ampersand, U+0026 ISOnum
+    'and':      0x2227, # logical and = wedge, U+2227 ISOtech
+    'ang':      0x2220, # angle, U+2220 ISOamso
+    'aring':    0x00e5, # latin small letter a with ring above = latin small letter a ring, U+00E5 ISOlat1
+    'asymp':    0x2248, # almost equal to = asymptotic to, U+2248 ISOamsr
+    'atilde':   0x00e3, # latin small letter a with tilde, U+00E3 ISOlat1
+    'auml':     0x00e4, # latin small letter a with diaeresis, U+00E4 ISOlat1
+    'bdquo':    0x201e, # double low-9 quotation mark, U+201E NEW
+    'beta':     0x03b2, # greek small letter beta, U+03B2 ISOgrk3
+    'brvbar':   0x00a6, # broken bar = broken vertical bar, U+00A6 ISOnum
+    'bull':     0x2022, # bullet = black small circle, U+2022 ISOpub
+    'cap':      0x2229, # intersection = cap, U+2229 ISOtech
+    'ccedil':   0x00e7, # latin small letter c with cedilla, U+00E7 ISOlat1
+    'cedil':    0x00b8, # cedilla = spacing cedilla, U+00B8 ISOdia
+    'cent':     0x00a2, # cent sign, U+00A2 ISOnum
+    'chi':      0x03c7, # greek small letter chi, U+03C7 ISOgrk3
+    'circ':     0x02c6, # modifier letter circumflex accent, U+02C6 ISOpub
+    'clubs':    0x2663, # black club suit = shamrock, U+2663 ISOpub
+    'cong':     0x2245, # approximately equal to, U+2245 ISOtech
+    'copy':     0x00a9, # copyright sign, U+00A9 ISOnum
+    'crarr':    0x21b5, # downwards arrow with corner leftwards = carriage return, U+21B5 NEW
+    'cup':      0x222a, # union = cup, U+222A ISOtech
+    'curren':   0x00a4, # currency sign, U+00A4 ISOnum
+    'dArr':     0x21d3, # downwards double arrow, U+21D3 ISOamsa
+    'dagger':   0x2020, # dagger, U+2020 ISOpub
+    'darr':     0x2193, # downwards arrow, U+2193 ISOnum
+    'deg':      0x00b0, # degree sign, U+00B0 ISOnum
+    'delta':    0x03b4, # greek small letter delta, U+03B4 ISOgrk3
+    'diams':    0x2666, # black diamond suit, U+2666 ISOpub
+    'divide':   0x00f7, # division sign, U+00F7 ISOnum
+    'eacute':   0x00e9, # latin small letter e with acute, U+00E9 ISOlat1
+    'ecirc':    0x00ea, # latin small letter e with circumflex, U+00EA ISOlat1
+    'egrave':   0x00e8, # latin small letter e with grave, U+00E8 ISOlat1
+    'empty':    0x2205, # empty set = null set = diameter, U+2205 ISOamso
+    'emsp':     0x2003, # em space, U+2003 ISOpub
+    'ensp':     0x2002, # en space, U+2002 ISOpub
+    'epsilon':  0x03b5, # greek small letter epsilon, U+03B5 ISOgrk3
+    'equiv':    0x2261, # identical to, U+2261 ISOtech
+    'eta':      0x03b7, # greek small letter eta, U+03B7 ISOgrk3
+    'eth':      0x00f0, # latin small letter eth, U+00F0 ISOlat1
+    'euml':     0x00eb, # latin small letter e with diaeresis, U+00EB ISOlat1
+    'euro':     0x20ac, # euro sign, U+20AC NEW
+    'exist':    0x2203, # there exists, U+2203 ISOtech
+    'fnof':     0x0192, # latin small f with hook = function = florin, U+0192 ISOtech
+    'forall':   0x2200, # for all, U+2200 ISOtech
+    'frac12':   0x00bd, # vulgar fraction one half = fraction one half, U+00BD ISOnum
+    'frac14':   0x00bc, # vulgar fraction one quarter = fraction one quarter, U+00BC ISOnum
+    'frac34':   0x00be, # vulgar fraction three quarters = fraction three quarters, U+00BE ISOnum
+    'frasl':    0x2044, # fraction slash, U+2044 NEW
+    'gamma':    0x03b3, # greek small letter gamma, U+03B3 ISOgrk3
+    'ge':       0x2265, # greater-than or equal to, U+2265 ISOtech
+    'gt':       0x003e, # greater-than sign, U+003E ISOnum
+    'hArr':     0x21d4, # left right double arrow, U+21D4 ISOamsa
+    'harr':     0x2194, # left right arrow, U+2194 ISOamsa
+    'hearts':   0x2665, # black heart suit = valentine, U+2665 ISOpub
+    'hellip':   0x2026, # horizontal ellipsis = three dot leader, U+2026 ISOpub
+    'iacute':   0x00ed, # latin small letter i with acute, U+00ED ISOlat1
+    'icirc':    0x00ee, # latin small letter i with circumflex, U+00EE ISOlat1
+    'iexcl':    0x00a1, # inverted exclamation mark, U+00A1 ISOnum
+    'igrave':   0x00ec, # latin small letter i with grave, U+00EC ISOlat1
+    'image':    0x2111, # blackletter capital I = imaginary part, U+2111 ISOamso
+    'infin':    0x221e, # infinity, U+221E ISOtech
+    'int':      0x222b, # integral, U+222B ISOtech
+    'iota':     0x03b9, # greek small letter iota, U+03B9 ISOgrk3
+    'iquest':   0x00bf, # inverted question mark = turned question mark, U+00BF ISOnum
+    'isin':     0x2208, # element of, U+2208 ISOtech
+    'iuml':     0x00ef, # latin small letter i with diaeresis, U+00EF ISOlat1
+    'kappa':    0x03ba, # greek small letter kappa, U+03BA ISOgrk3
+    'lArr':     0x21d0, # leftwards double arrow, U+21D0 ISOtech
+    'lambda':   0x03bb, # greek small letter lambda, U+03BB ISOgrk3
+    'lang':     0x2329, # left-pointing angle bracket = bra, U+2329 ISOtech
+    'laquo':    0x00ab, # left-pointing double angle quotation mark = left pointing guillemet, U+00AB ISOnum
+    'larr':     0x2190, # leftwards arrow, U+2190 ISOnum
+    'lceil':    0x2308, # left ceiling = apl upstile, U+2308 ISOamsc
+    'ldquo':    0x201c, # left double quotation mark, U+201C ISOnum
+    'le':       0x2264, # less-than or equal to, U+2264 ISOtech
+    'lfloor':   0x230a, # left floor = apl downstile, U+230A ISOamsc
+    'lowast':   0x2217, # asterisk operator, U+2217 ISOtech
+    'loz':      0x25ca, # lozenge, U+25CA ISOpub
+    'lrm':      0x200e, # left-to-right mark, U+200E NEW RFC 2070
+    'lsaquo':   0x2039, # single left-pointing angle quotation mark, U+2039 ISO proposed
+    'lsquo':    0x2018, # left single quotation mark, U+2018 ISOnum
+    'lt':       0x003c, # less-than sign, U+003C ISOnum
+    'macr':     0x00af, # macron = spacing macron = overline = APL overbar, U+00AF ISOdia
+    'mdash':    0x2014, # em dash, U+2014 ISOpub
+    'micro':    0x00b5, # micro sign, U+00B5 ISOnum
+    'middot':   0x00b7, # middle dot = Georgian comma = Greek middle dot, U+00B7 ISOnum
+    'minus':    0x2212, # minus sign, U+2212 ISOtech
+    'mu':       0x03bc, # greek small letter mu, U+03BC ISOgrk3
+    'nabla':    0x2207, # nabla = backward difference, U+2207 ISOtech
+    'nbsp':     0x00a0, # no-break space = non-breaking space, U+00A0 ISOnum
+    'ndash':    0x2013, # en dash, U+2013 ISOpub
+    'ne':       0x2260, # not equal to, U+2260 ISOtech
+    'ni':       0x220b, # contains as member, U+220B ISOtech
+    'not':      0x00ac, # not sign, U+00AC ISOnum
+    'notin':    0x2209, # not an element of, U+2209 ISOtech
+    'nsub':     0x2284, # not a subset of, U+2284 ISOamsn
+    'ntilde':   0x00f1, # latin small letter n with tilde, U+00F1 ISOlat1
+    'nu':       0x03bd, # greek small letter nu, U+03BD ISOgrk3
+    'oacute':   0x00f3, # latin small letter o with acute, U+00F3 ISOlat1
+    'ocirc':    0x00f4, # latin small letter o with circumflex, U+00F4 ISOlat1
+    'oelig':    0x0153, # latin small ligature oe, U+0153 ISOlat2
+    'ograve':   0x00f2, # latin small letter o with grave, U+00F2 ISOlat1
+    'oline':    0x203e, # overline = spacing overscore, U+203E NEW
+    'omega':    0x03c9, # greek small letter omega, U+03C9 ISOgrk3
+    'omicron':  0x03bf, # greek small letter omicron, U+03BF NEW
+    'oplus':    0x2295, # circled plus = direct sum, U+2295 ISOamsb
+    'or':       0x2228, # logical or = vee, U+2228 ISOtech
+    'ordf':     0x00aa, # feminine ordinal indicator, U+00AA ISOnum
+    'ordm':     0x00ba, # masculine ordinal indicator, U+00BA ISOnum
+    'oslash':   0x00f8, # latin small letter o with stroke, = latin small letter o slash, U+00F8 ISOlat1
+    'otilde':   0x00f5, # latin small letter o with tilde, U+00F5 ISOlat1
+    'otimes':   0x2297, # circled times = vector product, U+2297 ISOamsb
+    'ouml':     0x00f6, # latin small letter o with diaeresis, U+00F6 ISOlat1
+    'para':     0x00b6, # pilcrow sign = paragraph sign, U+00B6 ISOnum
+    'part':     0x2202, # partial differential, U+2202 ISOtech
+    'permil':   0x2030, # per mille sign, U+2030 ISOtech
+    'perp':     0x22a5, # up tack = orthogonal to = perpendicular, U+22A5 ISOtech
+    'phi':      0x03c6, # greek small letter phi, U+03C6 ISOgrk3
+    'pi':       0x03c0, # greek small letter pi, U+03C0 ISOgrk3
+    'piv':      0x03d6, # greek pi symbol, U+03D6 ISOgrk3
+    'plusmn':   0x00b1, # plus-minus sign = plus-or-minus sign, U+00B1 ISOnum
+    'pound':    0x00a3, # pound sign, U+00A3 ISOnum
+    'prime':    0x2032, # prime = minutes = feet, U+2032 ISOtech
+    'prod':     0x220f, # n-ary product = product sign, U+220F ISOamsb
+    'prop':     0x221d, # proportional to, U+221D ISOtech
+    'psi':      0x03c8, # greek small letter psi, U+03C8 ISOgrk3
+    'quot':     0x0022, # quotation mark = APL quote, U+0022 ISOnum
+    'rArr':     0x21d2, # rightwards double arrow, U+21D2 ISOtech
+    'radic':    0x221a, # square root = radical sign, U+221A ISOtech
+    'rang':     0x232a, # right-pointing angle bracket = ket, U+232A ISOtech
+    'raquo':    0x00bb, # right-pointing double angle quotation mark = right pointing guillemet, U+00BB ISOnum
+    'rarr':     0x2192, # rightwards arrow, U+2192 ISOnum
+    'rceil':    0x2309, # right ceiling, U+2309 ISOamsc
+    'rdquo':    0x201d, # right double quotation mark, U+201D ISOnum
+    'real':     0x211c, # blackletter capital R = real part symbol, U+211C ISOamso
+    'reg':      0x00ae, # registered sign = registered trade mark sign, U+00AE ISOnum
+    'rfloor':   0x230b, # right floor, U+230B ISOamsc
+    'rho':      0x03c1, # greek small letter rho, U+03C1 ISOgrk3
+    'rlm':      0x200f, # right-to-left mark, U+200F NEW RFC 2070
+    'rsaquo':   0x203a, # single right-pointing angle quotation mark, U+203A ISO proposed
+    'rsquo':    0x2019, # right single quotation mark, U+2019 ISOnum
+    'sbquo':    0x201a, # single low-9 quotation mark, U+201A NEW
+    'scaron':   0x0161, # latin small letter s with caron, U+0161 ISOlat2
+    'sdot':     0x22c5, # dot operator, U+22C5 ISOamsb
+    'sect':     0x00a7, # section sign, U+00A7 ISOnum
+    'shy':      0x00ad, # soft hyphen = discretionary hyphen, U+00AD ISOnum
+    'sigma':    0x03c3, # greek small letter sigma, U+03C3 ISOgrk3
+    'sigmaf':   0x03c2, # greek small letter final sigma, U+03C2 ISOgrk3
+    'sim':      0x223c, # tilde operator = varies with = similar to, U+223C ISOtech
+    'spades':   0x2660, # black spade suit, U+2660 ISOpub
+    'sub':      0x2282, # subset of, U+2282 ISOtech
+    'sube':     0x2286, # subset of or equal to, U+2286 ISOtech
+    'sum':      0x2211, # n-ary sumation, U+2211 ISOamsb
+    'sup':      0x2283, # superset of, U+2283 ISOtech
+    'sup1':     0x00b9, # superscript one = superscript digit one, U+00B9 ISOnum
+    'sup2':     0x00b2, # superscript two = superscript digit two = squared, U+00B2 ISOnum
+    'sup3':     0x00b3, # superscript three = superscript digit three = cubed, U+00B3 ISOnum
+    'supe':     0x2287, # superset of or equal to, U+2287 ISOtech
+    'szlig':    0x00df, # latin small letter sharp s = ess-zed, U+00DF ISOlat1
+    'tau':      0x03c4, # greek small letter tau, U+03C4 ISOgrk3
+    'there4':   0x2234, # therefore, U+2234 ISOtech
+    'theta':    0x03b8, # greek small letter theta, U+03B8 ISOgrk3
+    'thetasym': 0x03d1, # greek small letter theta symbol, U+03D1 NEW
+    'thinsp':   0x2009, # thin space, U+2009 ISOpub
+    'thorn':    0x00fe, # latin small letter thorn with, U+00FE ISOlat1
+    'tilde':    0x02dc, # small tilde, U+02DC ISOdia
+    'times':    0x00d7, # multiplication sign, U+00D7 ISOnum
+    'trade':    0x2122, # trade mark sign, U+2122 ISOnum
+    'uArr':     0x21d1, # upwards double arrow, U+21D1 ISOamsa
+    'uacute':   0x00fa, # latin small letter u with acute, U+00FA ISOlat1
+    'uarr':     0x2191, # upwards arrow, U+2191 ISOnum
+    'ucirc':    0x00fb, # latin small letter u with circumflex, U+00FB ISOlat1
+    'ugrave':   0x00f9, # latin small letter u with grave, U+00F9 ISOlat1
+    'uml':      0x00a8, # diaeresis = spacing diaeresis, U+00A8 ISOdia
+    'upsih':    0x03d2, # greek upsilon with hook symbol, U+03D2 NEW
+    'upsilon':  0x03c5, # greek small letter upsilon, U+03C5 ISOgrk3
+    'uuml':     0x00fc, # latin small letter u with diaeresis, U+00FC ISOlat1
+    'weierp':   0x2118, # script capital P = power set = Weierstrass p, U+2118 ISOamso
+    'xi':       0x03be, # greek small letter xi, U+03BE ISOgrk3
+    'yacute':   0x00fd, # latin small letter y with acute, U+00FD ISOlat1
+    'yen':      0x00a5, # yen sign = yuan sign, U+00A5 ISOnum
+    'yuml':     0x00ff, # latin small letter y with diaeresis, U+00FF ISOlat1
+    'zeta':     0x03b6, # greek small letter zeta, U+03B6 ISOgrk3
+    'zwj':      0x200d, # zero width joiner, U+200D NEW RFC 2070
+    'zwnj':     0x200c, # zero width non-joiner, U+200C NEW RFC 2070
+}
+
+# maps the Unicode codepoint to the HTML entity name
+codepoint2name = {}
+
+# maps the HTML entity name to the character
+# (or a character reference if the character is outside the Latin-1 range)
+entitydefs = {}
+
+for (name, codepoint) in name2codepoint.iteritems():
+    codepoint2name[codepoint] = name
+    if codepoint <= 0xff:
+        entitydefs[name] = chr(codepoint)
+    else:
+        entitydefs[name] = '&#%d;' % codepoint
+
+del name, codepoint