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/*
 * 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 ISO-8859-1
     * 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"}, // ? - uppercase A, grave accent
        {"\u00C1", "Á"}, // ? - uppercase A, acute accent
        {"\u00C2", "Â"}, // ? - uppercase A, circumflex accent
        {"\u00C3", "Ã"}, // ? - uppercase A, tilde
        {"\u00C4", "Ä"}, // ? - uppercase A, umlaut
        {"\u00C5", "Å"}, // ? - uppercase A, ring
        {"\u00C6", "Æ"}, // ? - uppercase AE
        {"\u00C7", "Ç"}, // ? - uppercase C, cedilla
        {"\u00C8", "È"}, // ? - uppercase E, grave accent
        {"\u00C9", "É"}, // ? - uppercase E, acute accent
        {"\u00CA", "Ê"}, // ? - uppercase E, circumflex accent
        {"\u00CB", "Ë"}, // ? - uppercase E, umlaut
        {"\u00CC", "Ì"}, // ? - uppercase I, grave accent
        {"\u00CD", "Í"}, // ? - uppercase I, acute accent
        {"\u00CE", "Î"}, // ? - uppercase I, circumflex accent
        {"\u00CF", "Ï"}, // ? - uppercase I, umlaut
        {"\u00D0", "Ð"}, // ? - uppercase Eth, Icelandic
        {"\u00D1", "Ñ"}, // ? - uppercase N, tilde
        {"\u00D2", "Ò"}, // ? - uppercase O, grave accent
        {"\u00D3", "Ó"}, // ? - uppercase O, acute accent
        {"\u00D4", "Ô"}, // ? - uppercase O, circumflex accent
        {"\u00D5", "Õ"}, // ? - uppercase O, tilde
        {"\u00D6", "Ö"}, // ? - uppercase O, umlaut
        {"\u00D7", "×"}, // multiplication sign
        {"\u00D8", "Ø"}, // ? - uppercase O, slash
        {"\u00D9", "Ù"}, // ? - uppercase U, grave accent
        {"\u00DA", "Ú"}, // ? - uppercase U, acute accent
        {"\u00DB", "Û"}, // ? - uppercase U, circumflex accent
        {"\u00DC", "Ü"}, // ? - uppercase U, umlaut
        {"\u00DD", "Ý"}, // ? - uppercase Y, acute accent
        {"\u00DE", "Þ"}, // ? - uppercase THORN, Icelandic
        {"\u00DF", "ß"}, // ? - lowercase sharps, German
        {"\u00E0", "à"}, // ? - lowercase a, grave accent
        {"\u00E1", "á"}, // ? - lowercase a, acute accent
        {"\u00E2", "â"}, // ? - lowercase a, circumflex accent
        {"\u00E3", "ã"}, // ? - lowercase a, tilde
        {"\u00E4", "ä"}, // ? - lowercase a, umlaut
        {"\u00E5", "å"}, // ? - lowercase a, ring
        {"\u00E6", "æ"}, // ? - lowercase ae
        {"\u00E7", "ç"}, // ? - lowercase c, cedilla
        {"\u00E8", "è"}, // ? - lowercase e, grave accent
        {"\u00E9", "é"}, // ? - lowercase e, acute accent
        {"\u00EA", "ê"}, // ? - lowercase e, circumflex accent
        {"\u00EB", "ë"}, // ? - lowercase e, umlaut
        {"\u00EC", "ì"}, // ? - lowercase i, grave accent
        {"\u00ED", "í"}, // ? - lowercase i, acute accent
        {"\u00EE", "î"}, // ? - lowercase i, circumflex accent
        {"\u00EF", "ï"}, // ? - lowercase i, umlaut
        {"\u00F0", "ð"}, // ? - lowercase eth, Icelandic
        {"\u00F1", "ñ"}, // ? - lowercase n, tilde
        {"\u00F2", "ò"}, // ? - lowercase o, grave accent
        {"\u00F3", "ó"}, // ? - lowercase o, acute accent
        {"\u00F4", "ô"}, // ? - lowercase o, circumflex accent
        {"\u00F5", "õ"}, // ? - lowercase o, tilde
        {"\u00F6", "ö"}, // ? - lowercase o, umlaut
        {"\u00F7", "÷"}, // division sign
        {"\u00F8", "ø"}, // ? - lowercase o, slash
        {"\u00F9", "ù"}, // ? - lowercase u, grave accent
        {"\u00FA", "ú"}, // ? - lowercase u, acute accent
        {"\u00FB", "û"}, // ? - lowercase u, circumflex accent
        {"\u00FC", "ü"}, // ? - lowercase u, umlaut
        {"\u00FD", "ý"}, // ? - lowercase y, acute accent
        {"\u00FE", "þ"}, // ? - lowercase thorn, Icelandic
        {"\u00FF", "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 character entity
     * references. 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 = {
        // 
        {"\u0192", "ƒ"}, // latin small f with hook = function= florin, U+0192 ISOtech -->
        // 
        {"\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 -->
        // 
        {"\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 -->
        // 
        {"\u2022", "•"}, // bullet = black small circle,U+2022 ISOpub -->
        // 
        {"\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 -->
        // 
        {"\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 -->
        // 
        // 
        {"\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 -->
        // 
        {"\u21D1", "⇑"}, // upwards double arrow, U+21D1 ISOamsa -->
        {"\u21D2", "⇒"}, // rightwards double arrow,U+21D2 ISOtech -->
        // 
        {"\u21D3", "⇓"}, // downwards double arrow, U+21D3 ISOamsa -->
        {"\u21D4", "⇔"}, // left right double arrow,U+21D4 ISOamsa -->
        // 
        {"\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 -->
        // 
        {"\u220F", "∏"}, // n-ary product = product sign,U+220F ISOamsb -->
        // 
        {"\u2211", "∑"}, // n-ary summation, U+2211 ISOamsb -->
        // 
        {"\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 -->
        // 
        {"\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 -->
        //  
        {"\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 -->
        // 
        // 
        {"\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 -->
        // 
        {"\u232A", "⟩"}, // right-pointing angle bracket = ket,U+232A ISOtech -->
        // 
        // 
        {"\u25CA", "◊"}, // lozenge, U+25CA ISOpub -->
        // 
        {"\u2660", "♠"}, // black spade suit, U+2660 ISOpub -->
        // 
        {"\u2663", "♣"}, // black club suit = shamrock,U+2663 ISOpub -->
        {"\u2665", "♥"}, // black heart suit = valentine,U+2665 ISOpub -->
        {"\u2666", "♦"}, // black diamond suit, U+2666 ISOpub -->

        // 
        {"\u0152", "Œ"}, // -- latin capital ligature OE,U+0152 ISOlat2 -->
        {"\u0153", "œ"}, // -- latin small ligature oe, U+0153 ISOlat2 -->
        // 
        {"\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 -->
        // 
        {"\u02C6", "ˆ"}, // -- modifier letter circumflex accent,U+02C6 ISOpub -->
        {"\u02DC", "˜"}, // small tilde, U+02DC ISOdia -->
        // 
        {"\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 -->
        // 
        {"\u203A", "›"}, // single right-pointing angle quotation mark,U+203A ISO proposed -->
        // 
        {"\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
        {"<", "<"},    // < - 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




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