gt:         {"supe", "8839"}, // superset of or equal to,U+2287 ISOtech -->
context: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package net.java.sip.communicator.util;
  
  import java.io.*;
  import java.util.*;
  
  /**
   * <p>
   * Provides HTML and XML entity utilities.
   * </p>
   *
   * @see <a href="http://hotwired.lycos.com/webmonkey/reference/special_characters/">ISO Entities</a>
   * @see <a href="http://www.w3.org/TR/REC-html32#latin1">HTML 3.2 Character Entities for ISO Latin-1</a>
   * @see <a href="http://www.w3.org/TR/REC-html40/sgml/entities.html">HTML 4.0 Character entity references</a>
   * @see <a href="http://www.w3.org/TR/html401/charset.html#h-5.3">HTML 4.01 Character References</a>
   * @see <a href="http://www.w3.org/TR/html401/charset.html#code-position">HTML 4.01 Code positions</a>
   *
   * @author <a href="mailto:alex@purpletech.com">Alexander Day Chaffee</a>
   * @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a>
   * @since 2.0
   * @version $Id$
   */
  class Entities {
  
      private static final String[][] BASIC_ARRAY = {{"quot", "34"}, // " - double-quote
          {"amp", "38"}, // & - ampersand
          {"lt", "60"}, // < - less-than
          {"gt", "62"}, // > - greater-than
      };
  
      private static final String[][] APOS_ARRAY = {{"apos", "39"}, // XML apostrophe
      };
  
      // package scoped for testing
      static final String[][] ISO8859_1_ARRAY = {{"nbsp", "160"}, // non-breaking space
          {"iexcl", "161"}, // inverted exclamation mark
          {"cent", "162"}, // cent sign
          {"pound", "163"}, // pound sign
          {"curren", "164"}, // currency sign
          {"yen", "165"}, // yen sign = yuan sign
          {"brvbar", "166"}, // broken bar = broken vertical bar
          {"sect", "167"}, // section sign
          {"uml", "168"}, // diaeresis = spacing diaeresis
          {"copy", "169"}, // ? - copyright sign
          {"ordf", "170"}, // feminine ordinal indicator
          {"laquo", "171"}, // left-pointing double angle quotation mark = left pointing guillemet
          {"not", "172"}, // not sign
          {"shy", "173"}, // soft hyphen = discretionary hyphen
          {"reg", "174"}, // ? - registered trademark sign
          {"macr", "175"}, // macron = spacing macron = overline = APL overbar
          {"deg", "176"}, // degree sign
          {"plusmn", "177"}, // plus-minus sign = plus-or-minus sign
          {"sup2", "178"}, // superscript two = superscript digit two = squared
          {"sup3", "179"}, // superscript three = superscript digit three = cubed
          {"acute", "180"}, // acute accent = spacing acute
          {"micro", "181"}, // micro sign
          {"para", "182"}, // pilcrow sign = paragraph sign
          {"middot", "183"}, // middle dot = Georgian comma = Greek middle dot
          {"cedil", "184"}, // cedilla = spacing cedilla
          {"sup1", "185"}, // superscript one = superscript digit one
          {"ordm", "186"}, // masculine ordinal indicator
          {"raquo", "187"}, // right-pointing double angle quotation mark = right pointing guillemet
          {"frac14", "188"}, // vulgar fraction one quarter = fraction one quarter
          {"frac12", "189"}, // vulgar fraction one half = fraction one half
          {"frac34", "190"}, // vulgar fraction three quarters = fraction three quarters
          {"iquest", "191"}, // inverted question mark = turned question mark
          {"Agrave", "192"}, // ? - uppercase A, grave accent
          {"Aacute", "193"}, // ? - uppercase A, acute accent
          {"Acirc", "194"}, // ? - uppercase A, circumflex accent
          {"Atilde", "195"}, // ? - uppercase A, tilde
          {"Auml", "196"}, // ? - uppercase A, umlaut
          {"Aring", "197"}, // ? - uppercase A, ring
          {"AElig", "198"}, // ? - uppercase AE
          {"Ccedil", "199"}, // ? - uppercase C, cedilla
          {"Egrave", "200"}, // ? - uppercase E, grave accent
          {"Eacute", "201"}, // ? - uppercase E, acute accent
          {"Ecirc", "202"}, // ? - uppercase E, circumflex accent
          {"Euml", "203"}, // ? - uppercase E, umlaut
          {"Igrave", "204"}, // ? - uppercase I, grave accent
          {"Iacute", "205"}, // ? - uppercase I, acute accent
          {"Icirc", "206"}, // ? - uppercase I, circumflex accent
          {"Iuml", "207"}, // ? - uppercase I, umlaut
          {"ETH", "208"}, // ? - uppercase Eth, Icelandic
          {"Ntilde", "209"}, // ? - uppercase N, tilde
          {"Ograve", "210"}, // ? - uppercase O, grave accent
          {"Oacute", "211"}, // ? - uppercase O, acute accent
          {"Ocirc", "212"}, // ? - uppercase O, circumflex accent
          {"Otilde", "213"}, // ? - uppercase O, tilde
          {"Ouml", "214"}, // ? - uppercase O, umlaut
          {"times", "215"}, // multiplication sign
          {"Oslash", "216"}, // ? - uppercase O, slash
          {"Ugrave", "217"}, // ? - uppercase U, grave accent
          {"Uacute", "218"}, // ? - uppercase U, acute accent
          {"Ucirc", "219"}, // ? - uppercase U, circumflex accent
          {"Uuml", "220"}, // ? - uppercase U, umlaut
          {"Yacute", "221"}, // ? - uppercase Y, acute accent
          {"THORN", "222"}, // ? - uppercase THORN, Icelandic
          {"szlig", "223"}, // ? - lowercase sharps, German
          {"agrave", "224"}, // ? - lowercase a, grave accent
          {"aacute", "225"}, // ? - lowercase a, acute accent
          {"acirc", "226"}, // ? - lowercase a, circumflex accent
          {"atilde", "227"}, // ? - lowercase a, tilde
          {"auml", "228"}, // ? - lowercase a, umlaut
          {"aring", "229"}, // ? - lowercase a, ring
          {"aelig", "230"}, // ? - lowercase ae
          {"ccedil", "231"}, // ? - lowercase c, cedilla
          {"egrave", "232"}, // ? - lowercase e, grave accent
          {"eacute", "233"}, // ? - lowercase e, acute accent
          {"ecirc", "234"}, // ? - lowercase e, circumflex accent
          {"euml", "235"}, // ? - lowercase e, umlaut
          {"igrave", "236"}, // ? - lowercase i, grave accent
          {"iacute", "237"}, // ? - lowercase i, acute accent
          {"icirc", "238"}, // ? - lowercase i, circumflex accent
          {"iuml", "239"}, // ? - lowercase i, umlaut
          {"eth", "240"}, // ? - lowercase eth, Icelandic
          {"ntilde", "241"}, // ? - lowercase n, tilde
          {"ograve", "242"}, // ? - lowercase o, grave accent
          {"oacute", "243"}, // ? - lowercase o, acute accent
          {"ocirc", "244"}, // ? - lowercase o, circumflex accent
          {"otilde", "245"}, // ? - lowercase o, tilde
          {"ouml", "246"}, // ? - lowercase o, umlaut
          {"divide", "247"}, // division sign
          {"oslash", "248"}, // ? - lowercase o, slash
          {"ugrave", "249"}, // ? - lowercase u, grave accent
          {"uacute", "250"}, // ? - lowercase u, acute accent
          {"ucirc", "251"}, // ? - lowercase u, circumflex accent
          {"uuml", "252"}, // ? - lowercase u, umlaut
          {"yacute", "253"}, // ? - lowercase y, acute accent
          {"thorn", "254"}, // ? - lowercase thorn, Icelandic
          {"yuml", "255"}, // ? - lowercase y, umlaut
      };
  
      // http://www.w3.org/TR/REC-html40/sgml/entities.html
      // package scoped for testing
      static final String[][] HTML40_ARRAY = {
      // <!-- Latin Extended-B -->
          {"fnof", "402"}, // latin small f with hook = function= florin, U+0192 ISOtech -->
          // <!-- Greek -->
          {"Alpha", "913"}, // greek capital letter alpha, U+0391 -->
          {"Beta", "914"}, // greek capital letter beta, U+0392 -->
          {"Gamma", "915"}, // greek capital letter gamma,U+0393 ISOgrk3 -->
          {"Delta", "916"}, // greek capital letter delta,U+0394 ISOgrk3 -->
          {"Epsilon", "917"}, // greek capital letter epsilon, U+0395 -->
          {"Zeta", "918"}, // greek capital letter zeta, U+0396 -->
          {"Eta", "919"}, // greek capital letter eta, U+0397 -->
          {"Theta", "920"}, // greek capital letter theta,U+0398 ISOgrk3 -->
          {"Iota", "921"}, // greek capital letter iota, U+0399 -->
          {"Kappa", "922"}, // greek capital letter kappa, U+039A -->
          {"Lambda", "923"}, // greek capital letter lambda,U+039B ISOgrk3 -->
          {"Mu", "924"}, // greek capital letter mu, U+039C -->
          {"Nu", "925"}, // greek capital letter nu, U+039D -->
          {"Xi", "926"}, // greek capital letter xi, U+039E ISOgrk3 -->
          {"Omicron", "927"}, // greek capital letter omicron, U+039F -->
          {"Pi", "928"}, // greek capital letter pi, U+03A0 ISOgrk3 -->
          {"Rho", "929"}, // greek capital letter rho, U+03A1 -->
          // <!-- there is no Sigmaf, and no U+03A2 character either -->
          {"Sigma", "931"}, // greek capital letter sigma,U+03A3 ISOgrk3 -->
          {"Tau", "932"}, // greek capital letter tau, U+03A4 -->
          {"Upsilon", "933"}, // greek capital letter upsilon,U+03A5 ISOgrk3 -->
          {"Phi", "934"}, // greek capital letter phi,U+03A6 ISOgrk3 -->
          {"Chi", "935"}, // greek capital letter chi, U+03A7 -->
          {"Psi", "936"}, // greek capital letter psi,U+03A8 ISOgrk3 -->
          {"Omega", "937"}, // greek capital letter omega,U+03A9 ISOgrk3 -->
          {"alpha", "945"}, // greek small letter alpha,U+03B1 ISOgrk3 -->
          {"beta", "946"}, // greek small letter beta, U+03B2 ISOgrk3 -->
          {"gamma", "947"}, // greek small letter gamma,U+03B3 ISOgrk3 -->
          {"delta", "948"}, // greek small letter delta,U+03B4 ISOgrk3 -->
          {"epsilon", "949"}, // greek small letter epsilon,U+03B5 ISOgrk3 -->
          {"zeta", "950"}, // greek small letter zeta, U+03B6 ISOgrk3 -->
          {"eta", "951"}, // greek small letter eta, U+03B7 ISOgrk3 -->
          {"theta", "952"}, // greek small letter theta,U+03B8 ISOgrk3 -->
          {"iota", "953"}, // greek small letter iota, U+03B9 ISOgrk3 -->
          {"kappa", "954"}, // greek small letter kappa,U+03BA ISOgrk3 -->
          {"lambda", "955"}, // greek small letter lambda,U+03BB ISOgrk3 -->
          {"mu", "956"}, // greek small letter mu, U+03BC ISOgrk3 -->
          {"nu", "957"}, // greek small letter nu, U+03BD ISOgrk3 -->
          {"xi", "958"}, // greek small letter xi, U+03BE ISOgrk3 -->
          {"omicron", "959"}, // greek small letter omicron, U+03BF NEW -->
          {"pi", "960"}, // greek small letter pi, U+03C0 ISOgrk3 -->
          {"rho", "961"}, // greek small letter rho, U+03C1 ISOgrk3 -->
          {"sigmaf", "962"}, // greek small letter final sigma,U+03C2 ISOgrk3 -->
          {"sigma", "963"}, // greek small letter sigma,U+03C3 ISOgrk3 -->
          {"tau", "964"}, // greek small letter tau, U+03C4 ISOgrk3 -->
          {"upsilon", "965"}, // greek small letter upsilon,U+03C5 ISOgrk3 -->
          {"phi", "966"}, // greek small letter phi, U+03C6 ISOgrk3 -->
          {"chi", "967"}, // greek small letter chi, U+03C7 ISOgrk3 -->
          {"psi", "968"}, // greek small letter psi, U+03C8 ISOgrk3 -->
          {"omega", "969"}, // greek small letter omega,U+03C9 ISOgrk3 -->
          {"thetasym", "977"}, // greek small letter theta symbol,U+03D1 NEW -->
          {"upsih", "978"}, // greek upsilon with hook symbol,U+03D2 NEW -->
          {"piv", "982"}, // greek pi symbol, U+03D6 ISOgrk3 -->
          // <!-- General Punctuation -->
          {"bull", "8226"}, // bullet = black small circle,U+2022 ISOpub -->
          // <!-- bullet is NOT the same as bullet operator, U+2219 -->
          {"hellip", "8230"}, // horizontal ellipsis = three dot leader,U+2026 ISOpub -->
          {"prime", "8242"}, // prime = minutes = feet, U+2032 ISOtech -->
          {"Prime", "8243"}, // double prime = seconds = inches,U+2033 ISOtech -->
          {"oline", "8254"}, // overline = spacing overscore,U+203E NEW -->
          {"frasl", "8260"}, // fraction slash, U+2044 NEW -->
          // <!-- Letterlike Symbols -->
          {"weierp", "8472"}, // script capital P = power set= Weierstrass p, U+2118 ISOamso -->
          {"image", "8465"}, // blackletter capital I = imaginary part,U+2111 ISOamso -->
          {"real", "8476"}, // blackletter capital R = real part symbol,U+211C ISOamso -->
          {"trade", "8482"}, // trade mark sign, U+2122 ISOnum -->
          {"alefsym", "8501"}, // alef symbol = first transfinite cardinal,U+2135 NEW -->
          // <!-- alef symbol is NOT the same as hebrew letter alef,U+05D0 although the
          // same glyph could be used to depict both characters -->
          // <!-- Arrows -->
          {"larr", "8592"}, // leftwards arrow, U+2190 ISOnum -->
          {"uarr", "8593"}, // upwards arrow, U+2191 ISOnum-->
          {"rarr", "8594"}, // rightwards arrow, U+2192 ISOnum -->
          {"darr", "8595"}, // downwards arrow, U+2193 ISOnum -->
          {"harr", "8596"}, // left right arrow, U+2194 ISOamsa -->
          {"crarr", "8629"}, // downwards arrow with corner leftwards= carriage return, U+21B5 NEW -->
          {"lArr", "8656"}, // leftwards double arrow, U+21D0 ISOtech -->
          // <!-- ISO 10646 does not say that lArr is the same as the 'is implied by'
          // arrow but also does not have any other character for that function.
          // So ? lArr canbe used for 'is implied by' as ISOtech suggests -->
          {"uArr", "8657"}, // upwards double arrow, U+21D1 ISOamsa -->
          {"rArr", "8658"}, // rightwards double arrow,U+21D2 ISOtech -->
          // <!-- ISO 10646 does not say this is the 'implies' character but does not
          // have another character with this function so ?rArr can be used for
          // 'implies' as ISOtech suggests -->
          {"dArr", "8659"}, // downwards double arrow, U+21D3 ISOamsa -->
          {"hArr", "8660"}, // left right double arrow,U+21D4 ISOamsa -->
          // <!-- Mathematical Operators -->
          {"forall", "8704"}, // for all, U+2200 ISOtech -->
          {"part", "8706"}, // partial differential, U+2202 ISOtech -->
          {"exist", "8707"}, // there exists, U+2203 ISOtech -->
          {"empty", "8709"}, // empty set = null set = diameter,U+2205 ISOamso -->
          {"nabla", "8711"}, // nabla = backward difference,U+2207 ISOtech -->
          {"isin", "8712"}, // element of, U+2208 ISOtech -->
          {"notin", "8713"}, // not an element of, U+2209 ISOtech -->
          {"ni", "8715"}, // contains as member, U+220B ISOtech -->
          // <!-- should there be a more memorable name than 'ni'? -->
          {"prod", "8719"}, // n-ary product = product sign,U+220F ISOamsb -->
          // <!-- prod is NOT the same character as U+03A0 'greek capital letter pi'
          // though the same glyph might be used for both -->
          {"sum", "8721"}, // n-ary summation, U+2211 ISOamsb -->
          // <!-- sum is NOT the same character as U+03A3 'greek capital letter sigma'
          // though the same glyph might be used for both -->
          {"minus", "8722"}, // minus sign, U+2212 ISOtech -->
          {"lowast", "8727"}, // asterisk operator, U+2217 ISOtech -->
          {"radic", "8730"}, // square root = radical sign,U+221A ISOtech -->
          {"prop", "8733"}, // proportional to, U+221D ISOtech -->
          {"infin", "8734"}, // infinity, U+221E ISOtech -->
          {"ang", "8736"}, // angle, U+2220 ISOamso -->
          {"and", "8743"}, // logical and = wedge, U+2227 ISOtech -->
          {"or", "8744"}, // logical or = vee, U+2228 ISOtech -->
          {"cap", "8745"}, // intersection = cap, U+2229 ISOtech -->
          {"cup", "8746"}, // union = cup, U+222A ISOtech -->
          {"int", "8747"}, // integral, U+222B ISOtech -->
          {"there4", "8756"}, // therefore, U+2234 ISOtech -->
          {"sim", "8764"}, // tilde operator = varies with = similar to,U+223C ISOtech -->
          // <!-- tilde operator is NOT the same character as the tilde, U+007E,although
          // the same glyph might be used to represent both -->
          {"cong", "8773"}, // approximately equal to, U+2245 ISOtech -->
          {"asymp", "8776"}, // almost equal to = asymptotic to,U+2248 ISOamsr -->
          {"ne", "8800"}, // not equal to, U+2260 ISOtech -->
          {"equiv", "8801"}, // identical to, U+2261 ISOtech -->
          {"le", "8804"}, // less-than or equal to, U+2264 ISOtech -->
          {"ge", "8805"}, // greater-than or equal to,U+2265 ISOtech -->
          {"sub", "8834"}, // subset of, U+2282 ISOtech -->
          {"sup", "8835"}, // superset of, U+2283 ISOtech -->
          // <!-- note that nsup, 'not a superset of, U+2283' is not covered by the
          // Symbol font encoding and is not included. Should it be, for symmetry?
          // It is in ISOamsn --> <!ENTITY nsub", "8836"},
          // not a subset of, U+2284 ISOamsn -->
          {"sube", "8838"}, // subset of or equal to, U+2286 ISOtech -->
  