/*

  * 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 org.apache.commons.lang3.text.translate;

 /**

  * Class holding various entity data for HTML and XML - generally for use with

  * the LookupTranslator.

  * All arrays are of length [*][2].

  *

  * @since 3.0

  * @version $Id: EntityArrays.java 1436770 2013-01-22 07:09:45Z ggregory $

  */

 public class EntityArrays {

     /**

      * Mapping to escape <a href="https://secure.wikimedia.org/wikipedia/en/wiki/ISO/IEC_8859-1">ISO-8859-1</a>

      * characters to their named HTML 3.x equivalents.

      * @return the mapping table

      */

     public static String[][] ISO8859_1_ESCAPE() { return ISO8859_1_ESCAPE.clone(); }

     private static final String[][] ISO8859_1_ESCAPE = {

         {"\u00A0", " "}, // non-breaking space

         {"\u00A1", "¡"}, // inverted exclamation mark

         {"\u00A2", "¢"}, // cent sign

         {"\u00A3", "£"}, // pound sign

         {"\u00A4", "¤"}, // currency sign

         {"\u00A5", "¥"}, // yen sign = yuan sign

         {"\u00A6", "¦"}, // broken bar = broken vertical bar

         {"\u00A7", "§"}, // section sign

         {"\u00A8", "¨"}, // diaeresis = spacing diaeresis

         {"\u00A9", "©"}, // © - copyright sign

         {"\u00AA", "ª"}, // feminine ordinal indicator

         {"\u00AB", "«"}, // left-pointing double angle quotation mark = left pointing guillemet

         {"\u00AC", "¬"}, // not sign

         {"\u00AD", "­"}, // soft hyphen = discretionary hyphen

         {"\u00AE", "®"}, // ® - registered trademark sign

         {"\u00AF", "¯"}, // macron = spacing macron = overline = APL overbar

         {"\u00B0", "°"}, // degree sign

         {"\u00B1", "±"}, // plus-minus sign = plus-or-minus sign

         {"\u00B2", "²"}, // superscript two = superscript digit two = squared

         {"\u00B3", "³"}, // superscript three = superscript digit three = cubed

         {"\u00B4", "´"}, // acute accent = spacing acute

         {"\u00B5", "µ"}, // micro sign

         {"\u00B6", "¶"}, // pilcrow sign = paragraph sign

         {"\u00B7", "·"}, // middle dot = Georgian comma = Greek middle dot

         {"\u00B8", "¸"}, // cedilla = spacing cedilla

         {"\u00B9", "¹"}, // superscript one = superscript digit one

         {"\u00BA", "º"}, // masculine ordinal indicator

         {"\u00BB", "»"}, // right-pointing double angle quotation mark = right pointing guillemet

         {"\u00BC", "¼"}, // vulgar fraction one quarter = fraction one quarter

         {"\u00BD", "½"}, // vulgar fraction one half = fraction one half

         {"\u00BE", "¾"}, // vulgar fraction three quarters = fraction three quarters

         {"\u00BF", "¿"}, // inverted question mark = turned question mark

         {"\u00C0", "À"}, // À - uppercase A, grave accent

         {"\u00C1", "Á"}, // Á - uppercase A, acute accent

         {"\u00C2", "Â"}, // Â - uppercase A, circumflex accent

         {"\u00C3", "Ã"}, // Ã - uppercase A, tilde

         {"\u00C4", "Ä"}, // Ä - uppercase A, umlaut

         {"\u00C5", "Å"}, // Å - uppercase A, ring

         {"\u00C6", "Æ"}, // Æ - uppercase AE

         {"\u00C7", "Ç"}, // Ç - uppercase C, cedilla

         {"\u00C8", "È"}, // È - uppercase E, grave accent

         {"\u00C9", "É"}, // É - uppercase E, acute accent

         {"\u00CA", "Ê"}, // Ê - uppercase E, circumflex accent

         {"\u00CB", "Ë"}, // Ë - uppercase E, umlaut

         {"\u00CC", "Ì"}, // Ì - uppercase I, grave accent

         {"\u00CD", "Í"}, // Í - uppercase I, acute accent

         {"\u00CE", "Î"}, // Î - uppercase I, circumflex accent

         {"\u00CF", "Ï"}, // Ï - uppercase I, umlaut

         {"\u00D0", "Ð"}, // Ð - uppercase Eth, Icelandic

         {"\u00D1", "Ñ"}, // Ñ - uppercase N, tilde

         {"\u00D2", "Ò"}, // Ò - uppercase O, grave accent

         {"\u00D3", "Ó"}, // Ó - uppercase O, acute accent

         {"\u00D4", "Ô"}, // Ô - uppercase O, circumflex accent

         {"\u00D5", "Õ"}, // Õ - uppercase O, tilde

         {"\u00D6", "Ö"}, // Ö - uppercase O, umlaut

         {"\u00D7", "×"}, // multiplication sign

         {"\u00D8", "Ø"}, // Ø - uppercase O, slash

         {"\u00D9", "Ù"}, // Ù - uppercase U, grave accent

         {"\u00DA", "Ú"}, // Ú - uppercase U, acute accent

         {"\u00DB", "Û"}, // Û - uppercase U, circumflex accent

         {"\u00DC", "Ü"}, // Ü - uppercase U, umlaut

         {"\u00DD", "Ý"}, // Ý - uppercase Y, acute accent

         {"\u00DE", "Þ"}, // Þ - uppercase THORN, Icelandic

         {"\u00DF", "ß"}, // ß - lowercase sharps, German

         {"\u00E0", "à"}, // à - lowercase a, grave accent

         {"\u00E1", "á"}, // á - lowercase a, acute accent

         {"\u00E2", "â"}, // â - lowercase a, circumflex accent

         {"\u00E3", "ã"}, // ã - lowercase a, tilde

         {"\u00E4", "ä"}, // ä - lowercase a, umlaut

         {"\u00E5", "å"}, // å - lowercase a, ring

         {"\u00E6", "æ"}, // æ - lowercase ae

         {"\u00E7", "ç"}, // ç - lowercase c, cedilla

         {"\u00E8", "è"}, // è - lowercase e, grave accent

         {"\u00E9", "é"}, // é - lowercase e, acute accent

         {"\u00EA", "ê"}, // ê - lowercase e, circumflex accent

         {"\u00EB", "ë"}, // ë - lowercase e, umlaut

         {"\u00EC", "ì"}, // ì - lowercase i, grave accent

         {"\u00ED", "í"}, // í - lowercase i, acute accent

         {"\u00EE", "î"}, // î - lowercase i, circumflex accent

         {"\u00EF", "ï"}, // ï - lowercase i, umlaut

         {"\u00F0", "ð"}, // ð - lowercase eth, Icelandic

         {"\u00F1", "ñ"}, // ñ - lowercase n, tilde

         {"\u00F2", "ò"}, // ò - lowercase o, grave accent

         {"\u00F3", "ó"}, // ó - lowercase o, acute accent

         {"\u00F4", "ô"}, // ô - lowercase o, circumflex accent

         {"\u00F5", "õ"}, // õ - lowercase o, tilde

         {"\u00F6", "ö"}, // ö - lowercase o, umlaut

         {"\u00F7", "÷"}, // division sign

         {"\u00F8", "ø"}, // ø - lowercase o, slash

         {"\u00F9", "ù"}, // ù - lowercase u, grave accent

         {"\u00FA", "ú"}, // ú - lowercase u, acute accent

         {"\u00FB", "û"}, // û - lowercase u, circumflex accent

         {"\u00FC", "ü"}, // ü - lowercase u, umlaut

         {"\u00FD", "ý"}, // ý - lowercase y, acute accent

         {"\u00FE", "þ"}, // þ - lowercase thorn, Icelandic

         {"\u00FF", "ÿ"}, // ÿ - lowercase y, umlaut

     };

     /**

      * Reverse of {@link #ISO8859_1_ESCAPE()} for unescaping purposes.

      * @return the mapping table

      */

     public static String[][] ISO8859_1_UNESCAPE() { return ISO8859_1_UNESCAPE.clone(); }

     private static final String[][] ISO8859_1_UNESCAPE = invert(ISO8859_1_ESCAPE);

     /**

      * Mapping to escape additional <a href="http://www.w3.org/TR/REC-html40/sgml/entities.html">character entity

      * references</a>. Note that this must be used with {@link #ISO8859_1_ESCAPE()} to get the full list of

      * HTML 4.0 character entities.

      * @return the mapping table

      */

     public static String[][] HTML40_EXTENDED_ESCAPE() { return HTML40_EXTENDED_ESCAPE.clone(); }

     private static final String[][] HTML40_EXTENDED_ESCAPE = {

         // <!-- Latin Extended-B -->

         {"\u0192", "ƒ"}, // latin small f with hook = function= florin, U+0192 ISOtech -->

         // <!-- Greek -->

         {"\u0391", "Α"}, // greek capital letter alpha, U+0391 -->

         {"\u0392", "Β"}, // greek capital letter beta, U+0392 -->

         {"\u0393", "Γ"}, // greek capital letter gamma,U+0393 ISOgrk3 -->

         {"\u0394", "Δ"}, // greek capital letter delta,U+0394 ISOgrk3 -->

         {"\u0395", "Ε"}, // greek capital letter epsilon, U+0395 -->

         {"\u0396", "Ζ"}, // greek capital letter zeta, U+0396 -->

         {"\u0397", "Η"}, // greek capital letter eta, U+0397 -->

         {"\u0398", "Θ"}, // greek capital letter theta,U+0398 ISOgrk3 -->

         {"\u0399", "Ι"}, // greek capital letter iota, U+0399 -->

         {"\u039A", "Κ"}, // greek capital letter kappa, U+039A -->

         {"\u039B", "Λ"}, // greek capital letter lambda,U+039B ISOgrk3 -->

         {"\u039C", "Μ"}, // greek capital letter mu, U+039C -->

         {"\u039D", "Ν"}, // greek capital letter nu, U+039D -->

         {"\u039E", "Ξ"}, // greek capital letter xi, U+039E ISOgrk3 -->

         {"\u039F", "Ο"}, // greek capital letter omicron, U+039F -->

         {"\u03A0", "Π"}, // greek capital letter pi, U+03A0 ISOgrk3 -->

         {"\u03A1", "Ρ"}, // greek capital letter rho, U+03A1 -->

         // <!-- there is no Sigmaf, and no U+03A2 character either -->

         {"\u03A3", "Σ"}, // greek capital letter sigma,U+03A3 ISOgrk3 -->

         {"\u03A4", "Τ"}, // greek capital letter tau, U+03A4 -->

         {"\u03A5", "Υ"}, // greek capital letter upsilon,U+03A5 ISOgrk3 -->

         {"\u03A6", "Φ"}, // greek capital letter phi,U+03A6 ISOgrk3 -->

         {"\u03A7", "Χ"}, // greek capital letter chi, U+03A7 -->

         {"\u03A8", "Ψ"}, // greek capital letter psi,U+03A8 ISOgrk3 -->

         {"\u03A9", "Ω"}, // greek capital letter omega,U+03A9 ISOgrk3 -->

         {"\u03B1", "α"}, // greek small letter alpha,U+03B1 ISOgrk3 -->

         {"\u03B2", "β"}, // greek small letter beta, U+03B2 ISOgrk3 -->

         {"\u03B3", "γ"}, // greek small letter gamma,U+03B3 ISOgrk3 -->

         {"\u03B4", "δ"}, // greek small letter delta,U+03B4 ISOgrk3 -->

         {"\u03B5", "ε"}, // greek small letter epsilon,U+03B5 ISOgrk3 -->

         {"\u03B6", "ζ"}, // greek small letter zeta, U+03B6 ISOgrk3 -->

         {"\u03B7", "η"}, // greek small letter eta, U+03B7 ISOgrk3 -->

         {"\u03B8", "θ"}, // greek small letter theta,U+03B8 ISOgrk3 -->

         {"\u03B9", "ι"}, // greek small letter iota, U+03B9 ISOgrk3 -->

         {"\u03BA", "κ"}, // greek small letter kappa,U+03BA ISOgrk3 -->

         {"\u03BB", "λ"}, // greek small letter lambda,U+03BB ISOgrk3 -->

         {"\u03BC", "μ"}, // greek small letter mu, U+03BC ISOgrk3 -->

         {"\u03BD", "ν"}, // greek small letter nu, U+03BD ISOgrk3 -->

         {"\u03BE", "ξ"}, // greek small letter xi, U+03BE ISOgrk3 -->

         {"\u03BF", "ο"}, // greek small letter omicron, U+03BF NEW -->

         {"\u03C0", "π"}, // greek small letter pi, U+03C0 ISOgrk3 -->

         {"\u03C1", "ρ"}, // greek small letter rho, U+03C1 ISOgrk3 -->

         {"\u03C2", "ς"}, // greek small letter final sigma,U+03C2 ISOgrk3 -->

         {"\u03C3", "σ"}, // greek small letter sigma,U+03C3 ISOgrk3 -->

         {"\u03C4", "τ"}, // greek small letter tau, U+03C4 ISOgrk3 -->

         {"\u03C5", "υ"}, // greek small letter upsilon,U+03C5 ISOgrk3 -->

         {"\u03C6", "φ"}, // greek small letter phi, U+03C6 ISOgrk3 -->

         {"\u03C7", "χ"}, // greek small letter chi, U+03C7 ISOgrk3 -->

         {"\u03C8", "ψ"}, // greek small letter psi, U+03C8 ISOgrk3 -->

         {"\u03C9", "ω"}, // greek small letter omega,U+03C9 ISOgrk3 -->

         {"\u03D1", "ϑ"}, // greek small letter theta symbol,U+03D1 NEW -->

         {"\u03D2", "ϒ"}, // greek upsilon with hook symbol,U+03D2 NEW -->

         {"\u03D6", "ϖ"}, // greek pi symbol, U+03D6 ISOgrk3 -->

         // <!-- General Punctuation -->

         {"\u2022", "•"}, // bullet = black small circle,U+2022 ISOpub -->

         // <!-- bullet is NOT the same as bullet operator, U+2219 -->

         {"\u2026", "…"}, // horizontal ellipsis = three dot leader,U+2026 ISOpub -->

         {"\u2032", "′"}, // prime = minutes = feet, U+2032 ISOtech -->

         {"\u2033", "″"}, // double prime = seconds = inches,U+2033 ISOtech -->

         {"\u203E", "‾"}, // overline = spacing overscore,U+203E NEW -->

         {"\u2044", "⁄"}, // fraction slash, U+2044 NEW -->

         // <!-- Letterlike Symbols -->

         {"\u2118", "℘"}, // script capital P = power set= Weierstrass p, U+2118 ISOamso -->

         {"\u2111", "ℑ"}, // blackletter capital I = imaginary part,U+2111 ISOamso -->

         {"\u211C", "ℜ"}, // blackletter capital R = real part symbol,U+211C ISOamso -->

         {"\u2122", "™"}, // trade mark sign, U+2122 ISOnum -->

         {"\u2135", "ℵ"}, // 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 -->

         {"\u2190", "←"}, // leftwards arrow, U+2190 ISOnum -->

         {"\u2191", "↑"}, // upwards arrow, U+2191 ISOnum-->

         {"\u2192", "→"}, // rightwards arrow, U+2192 ISOnum -->

         {"\u2193", "↓"}, // downwards arrow, U+2193 ISOnum -->

         {"\u2194", "↔"}, // left right arrow, U+2194 ISOamsa -->

         {"\u21B5", "↵"}, // downwards arrow with corner leftwards= carriage return, U+21B5 NEW -->

         {"\u21D0", "⇐"}, // 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 -->

         {"\u21D1", "⇑"}, // upwards double arrow, U+21D1 ISOamsa -->

         {"\u21D2", "⇒"}, // 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 -->

         {"\u21D3", "⇓"}, // downwards double arrow, U+21D3 ISOamsa -->

         {"\u21D4", "⇔"}, // left right double arrow,U+21D4 ISOamsa -->

         // <!-- Mathematical Operators -->

         {"\u2200", "∀"}, // for all, U+2200 ISOtech -->

         {"\u2202", "∂"}, // partial differential, U+2202 ISOtech -->

         {"\u2203", "∃"}, // there exists, U+2203 ISOtech -->

         {"\u2205", "∅"}, // empty set = null set = diameter,U+2205 ISOamso -->

         {"\u2207", "∇"}, // nabla = backward difference,U+2207 ISOtech -->

         {"\u2208", "∈"}, // element of, U+2208 ISOtech -->

         {"\u2209", "∉"}, // not an element of, U+2209 ISOtech -->

         {"\u220B", "∋"}, // contains as member, U+220B ISOtech -->

         // <!-- should there be a more memorable name than 'ni'? -->

         {"\u220F", "∏"}, // 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 -->

         {"\u2211", "∑"}, // 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 -->

         {"\u2212", "−"}, // minus sign, U+2212 ISOtech -->

         {"\u2217", "∗"}, // asterisk operator, U+2217 ISOtech -->

         {"\u221A", "√"}, // square root = radical sign,U+221A ISOtech -->

         {"\u221D", "∝"}, // proportional to, U+221D ISOtech -->

         {"\u221E", "∞"}, // infinity, U+221E ISOtech -->

         {"\u2220", "∠"}, // angle, U+2220 ISOamso -->

         {"\u2227", "∧"}, // logical and = wedge, U+2227 ISOtech -->

         {"\u2228", "∨"}, // logical or = vee, U+2228 ISOtech -->

         {"\u2229", "∩"}, // intersection = cap, U+2229 ISOtech -->

         {"\u222A", "∪"}, // union = cup, U+222A ISOtech -->

         {"\u222B", "∫"}, // integral, U+222B ISOtech -->

         {"\u2234", "∴"}, // therefore, U+2234 ISOtech -->

         {"\u223C", "∼"}, // 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 -->

         {"\u2245", "≅"}, // approximately equal to, U+2245 ISOtech -->

         {"\u2248", "≈"}, // almost equal to = asymptotic to,U+2248 ISOamsr -->

         {"\u2260", "≠"}, // not equal to, U+2260 ISOtech -->

         {"\u2261", "≡"}, // identical to, U+2261 ISOtech -->

         {"\u2264", "≤"}, // less-than or equal to, U+2264 ISOtech -->

         {"\u2265", "≥"}, // greater-than or equal to,U+2265 ISOtech -->

         {"\u2282", "⊂"}, // subset of, U+2282 ISOtech -->

         {"\u2283", "⊃"}, // 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 -->

         {"\u2286", "⊆"}, // subset of or equal to, U+2286 ISOtech -->

         {"\u2287", "⊇"}, // superset of or equal to,U+2287 ISOtech -->

         {"\u2295", "⊕"}, // circled plus = direct sum,U+2295 ISOamsb -->

         {"\u2297", "⊗"}, // circled times = vector product,U+2297 ISOamsb -->

         {"\u22A5", "⊥"}, // up tack = orthogonal to = perpendicular,U+22A5 ISOtech -->

         {"\u22C5", "⋅"}, // dot operator, U+22C5 ISOamsb -->

         // <!-- dot operator is NOT the same character as U+00B7 middle dot -->

         // <!-- Miscellaneous Technical -->

         {"\u2308", "⌈"}, // left ceiling = apl upstile,U+2308 ISOamsc -->

         {"\u2309", "⌉"}, // right ceiling, U+2309 ISOamsc -->

         {"\u230A", "⌊"}, // left floor = apl downstile,U+230A ISOamsc -->

         {"\u230B", "⌋"}, // right floor, U+230B ISOamsc -->

         {"\u2329", "⟨"}, // left-pointing angle bracket = bra,U+2329 ISOtech -->

         // <!-- lang is NOT the same character as U+003C 'less than' or U+2039 'single left-pointing angle quotation

         // mark' -->

         {"\u232A", "⟩"}, // right-pointing angle bracket = ket,U+232A ISOtech -->

         // <!-- rang is NOT the same character as U+003E 'greater than' or U+203A

         // 'single right-pointing angle quotation mark' -->

         // <!-- Geometric Shapes -->

         {"\u25CA", "◊"}, // lozenge, U+25CA ISOpub -->

         // <!-- Miscellaneous Symbols -->

         {"\u2660", "♠"}, // black spade suit, U+2660 ISOpub -->

         // <!-- black here seems to mean filled as opposed to hollow -->

         {"\u2663", "♣"}, // black club suit = shamrock,U+2663 ISOpub -->

         {"\u2665", "♥"}, // black heart suit = valentine,U+2665 ISOpub -->

         {"\u2666", "♦"}, // black diamond suit, U+2666 ISOpub -->

         // <!-- Latin Extended-A -->

         {"\u0152", "Œ"}, // -- latin capital ligature OE,U+0152 ISOlat2 -->

         {"\u0153", "œ"}, // -- latin small ligature oe, U+0153 ISOlat2 -->

         // <!-- ligature is a misnomer, this is a separate character in some languages -->

         {"\u0160", "Š"}, // -- latin capital letter S with caron,U+0160 ISOlat2 -->

         {"\u0161", "š"}, // -- latin small letter s with caron,U+0161 ISOlat2 -->

         {"\u0178", "Ÿ"}, // -- latin capital letter Y with diaeresis,U+0178 ISOlat2 -->

         // <!-- Spacing Modifier Letters -->

         {"\u02C6", "ˆ"}, // -- modifier letter circumflex accent,U+02C6 ISOpub -->

         {"\u02DC", "˜"}, // small tilde, U+02DC ISOdia -->

         // <!-- General Punctuation -->

         {"\u2002", " "}, // en space, U+2002 ISOpub -->

         {"\u2003", " "}, // em space, U+2003 ISOpub -->

         {"\u2009", " "}, // thin space, U+2009 ISOpub -->

         {"\u200C", "‌"}, // zero width non-joiner,U+200C NEW RFC 2070 -->

         {"\u200D", "‍"}, // zero width joiner, U+200D NEW RFC 2070 -->

         {"\u200E", "‎"}, // left-to-right mark, U+200E NEW RFC 2070 -->

         {"\u200F", "‏"}, // right-to-left mark, U+200F NEW RFC 2070 -->

         {"\u2013", "–"}, // en dash, U+2013 ISOpub -->

         {"\u2014", "—"}, // em dash, U+2014 ISOpub -->

         {"\u2018", "‘"}, // left single quotation mark,U+2018 ISOnum -->

         {"\u2019", "’"}, // right single quotation mark,U+2019 ISOnum -->

         {"\u201A", "‚"}, // single low-9 quotation mark, U+201A NEW -->

         {"\u201C", "“"}, // left double quotation mark,U+201C ISOnum -->

         {"\u201D", "”"}, // right double quotation mark,U+201D ISOnum -->

         {"\u201E", "„"}, // double low-9 quotation mark, U+201E NEW -->

         {"\u2020", "†"}, // dagger, U+2020 ISOpub -->

         {"\u2021", "‡"}, // double dagger, U+2021 ISOpub -->

         {"\u2030", "‰"}, // per mille sign, U+2030 ISOtech -->

         {"\u2039", "‹"}, // single left-pointing angle quotation mark,U+2039 ISO proposed -->

         // <!-- lsaquo is proposed but not yet ISO standardized -->

         {"\u203A", "›"}, // single right-pointing angle quotation mark,U+203A ISO proposed -->

         // <!-- rsaquo is proposed but not yet ISO standardized -->

         {"\u20AC", "€"}, // -- euro sign, U+20AC NEW -->

     };

     /**

      * Reverse of {@link #HTML40_EXTENDED_ESCAPE()} for unescaping purposes.

      * @return the mapping table

      */

     public static String[][] HTML40_EXTENDED_UNESCAPE() { return HTML40_EXTENDED_UNESCAPE.clone(); }

     private static final String[][] HTML40_EXTENDED_UNESCAPE = invert(HTML40_EXTENDED_ESCAPE);

     /**

      * Mapping to escape the basic XML and HTML character entities.

      *

      * Namely: {@code " & < >}

      * @return the mapping table

      */

     public static String[][] BASIC_ESCAPE() { return BASIC_ESCAPE.clone(); }

     private static final String[][] BASIC_ESCAPE = {

         {"\"", """}, // " - double-quote

         {"&", "&"},   // & - ampersand

         {"<", "&lt;"},    // < - less-than

         {">", ">"},    // > - greater-than

     };

     /**

      * Reverse of {@link #BASIC_ESCAPE()} for unescaping purposes.

      * @return the mapping table

      */

     public static String[][] BASIC_UNESCAPE() { return BASIC_UNESCAPE.clone(); }

     private static final String[][] BASIC_UNESCAPE = invert(BASIC_ESCAPE);

     /**

      * Mapping to escape the apostrophe character to its XML character entity.

      * @return the mapping table

      */

     public static String[][] APOS_ESCAPE() { return APOS_ESCAPE.clone(); }

     private static final String[][] APOS_ESCAPE = {

         {"'", "'"}, // XML apostrophe

     };

     /**

      * Reverse of {@link #APOS_ESCAPE()} for unescaping purposes.

      * @return the mapping table

      */

     public static String[][] APOS_UNESCAPE() { return APOS_UNESCAPE.clone(); }

     private static final String[][] APOS_UNESCAPE = invert(APOS_ESCAPE);

     /**

      * Mapping to escape the Java control characters.

      *

      * Namely: {@code \b \n \t \f \r}

      * @return the mapping table

      */

     public static String[][] JAVA_CTRL_CHARS_ESCAPE() { return JAVA_CTRL_CHARS_ESCAPE.clone(); }

     private static final String[][] JAVA_CTRL_CHARS_ESCAPE = {

         {"\b", "\\b"},

         {"\n", "\\n"},

         {"\t", "\\t"},

         {"\f", "\\f"},

         {"\r", "\\r"}

     };

     /**

      * Reverse of {@link #JAVA_CTRL_CHARS_ESCAPE()} for unescaping purposes.

      * @return the mapping table

      */

     public static String[][] JAVA_CTRL_CHARS_UNESCAPE() { return JAVA_CTRL_CHARS_UNESCAPE.clone(); }

     private static final String[][] JAVA_CTRL_CHARS_UNESCAPE = invert(JAVA_CTRL_CHARS_ESCAPE);

     /**

      * Used to invert an escape array into an unescape array

      * @param array String[][] to be inverted

      * @return String[][] inverted array

      */

     public static String[][] invert(final String[][] array) {

         final String[][] newarray = new String[array.length][2];

         for(int i = 0; i<array.length; i++) {

             newarray[i][0] = array[i][1];

             newarray[i][1] = array[i][0];

         }

         return newarray;

     }

 }