let charRefTable = [
"AElig;", 0x00C6;
"AElig", 0x00C6;
"AMP;", 0x0026;
"AMP", 0x0026;
"Aacute;", 0x00C1;
"Aacute", 0x00C1;
"Acirc;", 0x00C2;
"Acirc", 0x00C2;
"Agrave;", 0x00C0;
"Agrave", 0x00C0;
"Alpha;", 0x0391;
"Aring;", 0x00C5;
"Aring", 0x00C5;
"Atilde;", 0x00C3;
"Atilde", 0x00C3;
"Auml;", 0x00C4;
"Auml", 0x00C4;
"Beta;", 0x0392;
"COPY;", 0x00A9;
"COPY", 0x00A9;
"Ccedil;", 0x00C7;
"Ccedil", 0x00C7;
"Chi;", 0x03A7;
"Dagger;", 0x2021;
"Delta;", 0x0394;
"ETH;", 0x00D0;
"ETH", 0x00D0;
"Eacute;", 0x00C9;
"Eacute", 0x00C9;
"Ecirc;", 0x00CA;
"Ecirc", 0x00CA;
"Egrave;", 0x00C8;
"Egrave", 0x00C8;
"Epsilon;", 0x0395;
"Eta;", 0x0397;
"Euml;", 0x00CB;
"Euml", 0x00CB;
"GT;", 0x003E;
"GT", 0x003E;
"Gamma;", 0x0393;
"Iacute;", 0x00CD;
"Iacute", 0x00CD;
"Icirc;", 0x00CE;
"Icirc", 0x00CE;
"Igrave;", 0x00CC;
"Igrave", 0x00CC;
"Iota;", 0x0399;
"Iuml;", 0x00CF;
"Iuml", 0x00CF;
"Kappa;", 0x039A;
"LT;", 0x003C;
"LT", 0x003C;
"Lambda;", 0x039B;
"Mu;", 0x039C;
"Ntilde;", 0x00D1;
"Ntilde", 0x00D1;
"Nu;", 0x039D;
"OElig;", 0x0152;
"Oacute;", 0x00D3;
"Oacute", 0x00D3;
"Ocirc;", 0x00D4;
"Ocirc", 0x00D4;
"Ograve;", 0x00D2;
"Ograve", 0x00D2;
"Omega;", 0x03A9;
"Omicron;", 0x039F;
"Oslash;", 0x00D8;
"Oslash", 0x00D8;
"Otilde;", 0x00D5;
"Otilde", 0x00D5;
"Ouml;", 0x00D6;
"Ouml", 0x00D6;
"Phi;", 0x03A6;
"Pi;", 0x03A0;
"Prime;", 0x2033;
"Psi;", 0x03A8;
"QUOT;", 0x0022;
"QUOT", 0x0022;
"REG;", 0x00AE;
"REG", 0x00AE;
"Rho;", 0x03A1;
"Scaron;", 0x0160;
"Sigma;", 0x03A3;
"THORN;", 0x00DE;
"THORN", 0x00DE;
"TRADE;", 0x2122;
"Tau;", 0x03A4;
"Theta;", 0x0398;
"Uacute;", 0x00DA;
"Uacute", 0x00DA;
"Ucirc;", 0x00DB;
"Ucirc", 0x00DB;
"Ugrave;", 0x00D9;
"Ugrave", 0x00D9;
"Upsilon;", 0x03A5;
"Uuml;", 0x00DC;
"Uuml", 0x00DC;
"Xi;", 0x039E;
"Yacute;", 0x00DD;
"Yacute", 0x00DD;
"Yuml;", 0x0178;
"Zeta;", 0x0396;
"aacute;", 0x00E1;
"aacute", 0x00E1;
"acirc;", 0x00E2;
"acirc", 0x00E2;
"acute;", 0x00B4;
"acute", 0x00B4;
"aelig;", 0x00E6;
"aelig", 0x00E6;
"agrave;", 0x00E0;
"agrave", 0x00E0;
"alefsym;", 0x2135;
"alpha;", 0x03B1;
"amp;", 0x0026;
"amp", 0x0026;
"and;", 0x2227;
"ang;", 0x2220;
"apos;", 0x0027;
"aring;", 0x00E5;
"aring", 0x00E5;
"asymp;", 0x2248;
"atilde;", 0x00E3;
"atilde", 0x00E3;
"auml;", 0x00E4;
"auml", 0x00E4;
"bdquo;", 0x201E;
"beta;", 0x03B2;
"brvbar;", 0x00A6;
"brvbar", 0x00A6;
"bull;", 0x2022;
"cap;", 0x2229;
"ccedil;", 0x00E7;
"ccedil", 0x00E7;
"cedil;", 0x00B8;
"cedil", 0x00B8;
"cent;", 0x00A2;
"cent", 0x00A2;
"chi;", 0x03C7;
"circ;", 0x02C6;
"clubs;", 0x2663;
"cong;", 0x2245;
"copy;", 0x00A9;
"copy", 0x00A9;
"crarr;", 0x21B5;
"cup;", 0x222A;
"curren;", 0x00A4;
"curren", 0x00A4;
"dArr;", 0x21D3;
"dagger;", 0x2020;
"darr;", 0x2193;
"deg;", 0x00B0;
"deg", 0x00B0;
"delta;", 0x03B4;
"diams;", 0x2666;
"divide;", 0x00F7;
"divide", 0x00F7;
"eacute;", 0x00E9;
"eacute", 0x00E9;
"ecirc;", 0x00EA;
"ecirc", 0x00EA;
"egrave;", 0x00E8;
"egrave", 0x00E8;
"empty;", 0x2205;
"emsp;", 0x2003;
"ensp;", 0x2002;
"epsilon;", 0x03B5;
"equiv;", 0x2261;
"eta;", 0x03B7;
"eth;", 0x00F0;
"eth", 0x00F0;
"euml;", 0x00EB;
"euml", 0x00EB;
"euro;", 0x20AC;
"exist;", 0x2203;
"fnof;", 0x0192;
"forall;", 0x2200;
"frac12;", 0x00BD;
"frac12", 0x00BD;
"frac14;", 0x00BC;
"frac14", 0x00BC;
"frac34;", 0x00BE;
"frac34", 0x00BE;
"frasl;", 0x2044;
"gamma;", 0x03B3;
"ge;", 0x2265;
"gt;", 0x003E;
"gt", 0x003E;
"hArr;", 0x21D4;
"harr;", 0x2194;
"hearts;", 0x2665;
"hellip;", 0x2026;
"iacute;", 0x00ED;
"iacute", 0x00ED;
"icirc;", 0x00EE;
"icirc", 0x00EE;
"iexcl;", 0x00A1;
"iexcl", 0x00A1;
"igrave;", 0x00EC;
"igrave", 0x00EC;
"image;", 0x2111;
"infin;", 0x221E;
"int;", 0x222B;
"iota;", 0x03B9;
"iquest;", 0x00BF;
"iquest", 0x00BF;
"isin;", 0x2208;
"iuml;", 0x00EF;
"iuml", 0x00EF;
"kappa;", 0x03BA;
"lArr;", 0x21D0;
"lambda;", 0x03BB;
"lang;", 0x27E8;
"laquo;", 0x00AB;
"laquo", 0x00AB;
"larr;", 0x2190;
"lceil;", 0x2308;
"ldquo;", 0x201C;
"le;", 0x2264;
"lfloor;", 0x230A;
"lowast;", 0x2217;
"loz;", 0x25CA;
"lrm;", 0x200E;
"lsaquo;", 0x2039;
"lsquo;", 0x2018;
"lt;", 0x003C;
"lt", 0x003C;
"macr;", 0x00AF;
"macr", 0x00AF;
"mdash;", 0x2014;
"micro;", 0x00B5;
"micro", 0x00B5;
"middot;", 0x00B7;
"middot", 0x00B7;
"minus;", 0x2212;
"mu;", 0x03BC;
"nabla;", 0x2207;
"nbsp;", 0x00A0;
"nbsp", 0x00A0;
"ndash;", 0x2013;
"ne;", 0x2260;
"ni;", 0x220B;
"not;", 0x00AC;
"not", 0x00AC;
"notin;", 0x2209;
"nsub;", 0x2284;
"ntilde;", 0x00F1;
"ntilde", 0x00F1;
"nu;", 0x03BD;
"oacute;", 0x00F3;
"oacute", 0x00F3;
"ocirc;", 0x00F4;
"ocirc", 0x00F4;
"oelig;", 0x0153;
"ograve;", 0x00F2;
"ograve", 0x00F2;
"oline;", 0x203E;
"omega;", 0x03C9;
"omicron;", 0x03BF;
"oplus;", 0x2295;
"or;", 0x2228;
"ordf;", 0x00AA;
"ordf", 0x00AA;
"ordm;", 0x00BA;
"ordm", 0x00BA;
"oslash;", 0x00F8;
"oslash", 0x00F8;
"otilde;", 0x00F5;
"otilde", 0x00F5;
"otimes;", 0x2297;
"ouml;", 0x00F6;
"ouml", 0x00F6;
"para;", 0x00B6;
"para", 0x00B6;
"part;", 0x2202;
"permil;", 0x2030;
"perp;", 0x22A5;
"phi;", 0x03C6;
"pi;", 0x03C0;
"piv;", 0x03D6;
"plusmn;", 0x00B1;
"plusmn", 0x00B1;
"pound;", 0x00A3;
"pound", 0x00A3;
"prime;", 0x2032;
"prod;", 0x220F;
"prop;", 0x221D;
"psi;", 0x03C8;
"quot;", 0x0022;
"quot", 0x0022;
"rArr;", 0x21D2;
"radic;", 0x221A;
"rang;", 0x27E9;
"raquo;", 0x00BB;
"raquo", 0x00BB;
"rarr;", 0x2192;
"rceil;", 0x2309;
"rdquo;", 0x201D;
"real;", 0x211C;
"reg;", 0x00AE;
"reg", 0x00AE;
"rfloor;", 0x230B;
"rho;", 0x03C1;
"rlm;", 0x200F;
"rsaquo;", 0x203A;
"rsquo;", 0x2019;
"sbquo;", 0x201A;
"scaron;", 0x0161;
"sdot;", 0x22C5;
"sect;", 0x00A7;
"sect", 0x00A7;
"shy;", 0x00AD;
"shy", 0x00AD;
"sigma;", 0x03C3;
"sigmaf;", 0x03C2;
"sim;", 0x223C;
"spades;", 0x2660;
"sub;", 0x2282;
"sube;", 0x2286;
"sum;", 0x2211;
"sup1;", 0x00B9;
"sup1", 0x00B9;
"sup2;", 0x00B2;
"sup2", 0x00B2;
"sup3;", 0x00B3;
"sup3", 0x00B3;
"sup;", 0x2283;
"supe;", 0x2287;
"szlig;", 0x00DF;
"szlig", 0x00DF;
"tau;", 0x03C4;
"there4;", 0x2234;
"theta;", 0x03B8;
"thetasym;", 0x03D1;
"thinsp;", 0x2009;
"thorn;", 0x00FE;
"thorn", 0x00FE;
"tilde;", 0x02DC;
"times;", 0x00D7;
"times", 0x00D7;
"trade;", 0x2122;
"uArr;", 0x21D1;
"uacute;", 0x00FA;
"uacute", 0x00FA;
"uarr;", 0x2191;
"ucirc;", 0x00FB;
"ucirc", 0x00FB;
"ugrave;", 0x00F9;
"ugrave", 0x00F9;
"uml;", 0x00A8;
"uml", 0x00A8;
"upsih;", 0x03D2;
"upsilon;", 0x03C5;
"uuml;", 0x00FC;
"uuml", 0x00FC;
"weierp;", 0x2118;
"xi;", 0x03BE;
"yacute;", 0x00FD;
"yacute", 0x00FD;
"yen;", 0x00A5;
"yen", 0x00A5;
"yuml;", 0x00FF;
"yuml", 0x00FF;
"zeta;", 0x03B6;
"zwj;", 0x200D;
"zwnj;", 0x200C;
]

let charRefMappingTable = [
0x0D, 0x000A;
0x80, 0x20AC;
0x81, 0xFFFD;
0x82, 0x201A;
0x83, 0x0192;
0x84, 0x201E;
0x85, 0x2026;
0x86, 0x2020;
0x87, 0x2021;
0x88, 0x02C6;
0x89, 0x2030;
0x8A, 0x0160;
0x8B, 0x2039;
0x8C, 0x0152;
0x8D, 0xFFFD;
0x8E, 0x017D;
0x8F, 0xFFFD;
0x90, 0xFFFD;
0x91, 0x2018;
0x92, 0x2019;
0x93, 0x201C;
0x94, 0x201D;
0x95, 0x2022;
0x96, 0x2013;
0x97, 0x2014;
0x98, 0x02DC;
0x99, 0x2122;
0x9A, 0x0161;
0x9B, 0x203A;
0x9C, 0x0153;
0x9D, 0xFFFD;
0x9E, 0x017E;
0x9F, 0x0178;
]

let charRefInvalidRanges = [
0x0000, 0x0008;
0x000B, 0x000B;
0x000E, 0x001F;
0x007F, 0x009F;
0xD800, 0xDFFF;
0xFDD0, 0xFDDF;
0xFFFE, 0xFFFF;
0x1FFFE, 0x1FFFF;
0x2FFFE, 0x2FFFF;
0x3FFFE, 0x3FFFF;
0x4FFFE, 0x4FFFF;
0x5FFFE, 0x5FFFF;
0x6FFFE, 0x6FFFF;
0x7FFFE, 0x7FFFF;
0x8FFFE, 0x8FFFF;
0x9FFFE, 0x9FFFF;
0xAFFFE, 0xAFFFF;
0xBFFFE, 0xBFFFF;
0xCFFFE, 0xCFFFF;
0xDFFFE, 0xDFFFF;
0xEFFFE, 0xEFFFF;
0xFFFFE, 0xFFFFF;
0x10FFFE, 0x10FFFF
]