/home/kueuepay/public_html/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Helper/Html.php
<?php

namespace PhpOffice\PhpSpreadsheet\Helper;

use DOMDocument;
use DOMElement;
use DOMNode;
use DOMText;
use PhpOffice\PhpSpreadsheet\RichText\RichText;
use PhpOffice\PhpSpreadsheet\Style\Color;
use PhpOffice\PhpSpreadsheet\Style\Font;

class Html
{
    private const COLOUR_MAP = [
        'aliceblue' => 'f0f8ff',
        'antiquewhite' => 'faebd7',
        'antiquewhite1' => 'ffefdb',
        'antiquewhite2' => 'eedfcc',
        'antiquewhite3' => 'cdc0b0',
        'antiquewhite4' => '8b8378',
        'aqua' => '00ffff',
        'aquamarine1' => '7fffd4',
        'aquamarine2' => '76eec6',
        'aquamarine4' => '458b74',
        'azure1' => 'f0ffff',
        'azure2' => 'e0eeee',
        'azure3' => 'c1cdcd',
        'azure4' => '838b8b',
        'beige' => 'f5f5dc',
        'bisque1' => 'ffe4c4',
        'bisque2' => 'eed5b7',
        'bisque3' => 'cdb79e',
        'bisque4' => '8b7d6b',
        'black' => '000000',
        'blanchedalmond' => 'ffebcd',
        'blue' => '0000ff',
        'blue1' => '0000ff',
        'blue2' => '0000ee',
        'blue4' => '00008b',
        'blueviolet' => '8a2be2',
        'brown' => 'a52a2a',
        'brown1' => 'ff4040',
        'brown2' => 'ee3b3b',
        'brown3' => 'cd3333',
        'brown4' => '8b2323',
        'burlywood' => 'deb887',
        'burlywood1' => 'ffd39b',
        'burlywood2' => 'eec591',
        'burlywood3' => 'cdaa7d',
        'burlywood4' => '8b7355',
        'cadetblue' => '5f9ea0',
        'cadetblue1' => '98f5ff',
        'cadetblue2' => '8ee5ee',
        'cadetblue3' => '7ac5cd',
        'cadetblue4' => '53868b',
        'chartreuse1' => '7fff00',
        'chartreuse2' => '76ee00',
        'chartreuse3' => '66cd00',
        'chartreuse4' => '458b00',
        'chocolate' => 'd2691e',
        'chocolate1' => 'ff7f24',
        'chocolate2' => 'ee7621',
        'chocolate3' => 'cd661d',
        'coral' => 'ff7f50',
        'coral1' => 'ff7256',
        'coral2' => 'ee6a50',
        'coral3' => 'cd5b45',
        'coral4' => '8b3e2f',
        'cornflowerblue' => '6495ed',
        'cornsilk1' => 'fff8dc',
        'cornsilk2' => 'eee8cd',
        'cornsilk3' => 'cdc8b1',
        'cornsilk4' => '8b8878',
        'cyan1' => '00ffff',
        'cyan2' => '00eeee',
        'cyan3' => '00cdcd',
        'cyan4' => '008b8b',
        'darkgoldenrod' => 'b8860b',
        'darkgoldenrod1' => 'ffb90f',
        'darkgoldenrod2' => 'eead0e',
        'darkgoldenrod3' => 'cd950c',
        'darkgoldenrod4' => '8b6508',
        'darkgreen' => '006400',
        'darkkhaki' => 'bdb76b',
        'darkolivegreen' => '556b2f',
        'darkolivegreen1' => 'caff70',
        'darkolivegreen2' => 'bcee68',
        'darkolivegreen3' => 'a2cd5a',
        'darkolivegreen4' => '6e8b3d',
        'darkorange' => 'ff8c00',
        'darkorange1' => 'ff7f00',
        'darkorange2' => 'ee7600',
        'darkorange3' => 'cd6600',
        'darkorange4' => '8b4500',
        'darkorchid' => '9932cc',
        'darkorchid1' => 'bf3eff',
        'darkorchid2' => 'b23aee',
        'darkorchid3' => '9a32cd',
        'darkorchid4' => '68228b',
        'darksalmon' => 'e9967a',
        'darkseagreen' => '8fbc8f',
        'darkseagreen1' => 'c1ffc1',
        'darkseagreen2' => 'b4eeb4',
        'darkseagreen3' => '9bcd9b',
        'darkseagreen4' => '698b69',
        'darkslateblue' => '483d8b',
        'darkslategray' => '2f4f4f',
        'darkslategray1' => '97ffff',
        'darkslategray2' => '8deeee',
        'darkslategray3' => '79cdcd',
        'darkslategray4' => '528b8b',
        'darkturquoise' => '00ced1',
        'darkviolet' => '9400d3',
        'deeppink1' => 'ff1493',
        'deeppink2' => 'ee1289',
        'deeppink3' => 'cd1076',
        'deeppink4' => '8b0a50',
        'deepskyblue1' => '00bfff',
        'deepskyblue2' => '00b2ee',
        'deepskyblue3' => '009acd',
        'deepskyblue4' => '00688b',
        'dimgray' => '696969',
        'dodgerblue1' => '1e90ff',
        'dodgerblue2' => '1c86ee',
        'dodgerblue3' => '1874cd',
        'dodgerblue4' => '104e8b',
        'firebrick' => 'b22222',
        'firebrick1' => 'ff3030',
        'firebrick2' => 'ee2c2c',
        'firebrick3' => 'cd2626',
        'firebrick4' => '8b1a1a',
        'floralwhite' => 'fffaf0',
        'forestgreen' => '228b22',
        'fuchsia' => 'ff00ff',
        'gainsboro' => 'dcdcdc',
        'ghostwhite' => 'f8f8ff',
        'gold1' => 'ffd700',
        'gold2' => 'eec900',
        'gold3' => 'cdad00',
        'gold4' => '8b7500',
        'goldenrod' => 'daa520',
        'goldenrod1' => 'ffc125',
        'goldenrod2' => 'eeb422',
        'goldenrod3' => 'cd9b1d',
        'goldenrod4' => '8b6914',
        'gray' => 'bebebe',
        'gray1' => '030303',
        'gray10' => '1a1a1a',
        'gray11' => '1c1c1c',
        'gray12' => '1f1f1f',
        'gray13' => '212121',
        'gray14' => '242424',
        'gray15' => '262626',
        'gray16' => '292929',
        'gray17' => '2b2b2b',
        'gray18' => '2e2e2e',
        'gray19' => '303030',
        'gray2' => '050505',
        'gray20' => '333333',
        'gray21' => '363636',
        'gray22' => '383838',
        'gray23' => '3b3b3b',
        'gray24' => '3d3d3d',
        'gray25' => '404040',
        'gray26' => '424242',
        'gray27' => '454545',
        'gray28' => '474747',
        'gray29' => '4a4a4a',
        'gray3' => '080808',
        'gray30' => '4d4d4d',
        'gray31' => '4f4f4f',
        'gray32' => '525252',
        'gray33' => '545454',
        'gray34' => '575757',
        'gray35' => '595959',
        'gray36' => '5c5c5c',
        'gray37' => '5e5e5e',
        'gray38' => '616161',
        'gray39' => '636363',
        'gray4' => '0a0a0a',
        'gray40' => '666666',
        'gray41' => '696969',
        'gray42' => '6b6b6b',
        'gray43' => '6e6e6e',
        'gray44' => '707070',
        'gray45' => '737373',
        'gray46' => '757575',
        'gray47' => '787878',
        'gray48' => '7a7a7a',
        'gray49' => '7d7d7d',
        'gray5' => '0d0d0d',
        'gray50' => '7f7f7f',
        'gray51' => '828282',
        'gray52' => '858585',
        'gray53' => '878787',
        'gray54' => '8a8a8a',
        'gray55' => '8c8c8c',
        'gray56' => '8f8f8f',
        'gray57' => '919191',
        'gray58' => '949494',
        'gray59' => '969696',
        'gray6' => '0f0f0f',
        'gray60' => '999999',
        'gray61' => '9c9c9c',
        'gray62' => '9e9e9e',
        'gray63' => 'a1a1a1',
        'gray64' => 'a3a3a3',
        'gray65' => 'a6a6a6',
        'gray66' => 'a8a8a8',
        'gray67' => 'ababab',
        'gray68' => 'adadad',
        'gray69' => 'b0b0b0',
        'gray7' => '121212',
        'gray70' => 'b3b3b3',
        'gray71' => 'b5b5b5',
        'gray72' => 'b8b8b8',
        'gray73' => 'bababa',
        'gray74' => 'bdbdbd',
        'gray75' => 'bfbfbf',
        'gray76' => 'c2c2c2',
        'gray77' => 'c4c4c4',
        'gray78' => 'c7c7c7',
        'gray79' => 'c9c9c9',
        'gray8' => '141414',
        'gray80' => 'cccccc',
        'gray81' => 'cfcfcf',
        'gray82' => 'd1d1d1',
        'gray83' => 'd4d4d4',
        'gray84' => 'd6d6d6',
        'gray85' => 'd9d9d9',
        'gray86' => 'dbdbdb',
        'gray87' => 'dedede',
        'gray88' => 'e0e0e0',
        'gray89' => 'e3e3e3',
        'gray9' => '171717',
        'gray90' => 'e5e5e5',
        'gray91' => 'e8e8e8',
        'gray92' => 'ebebeb',
        'gray93' => 'ededed',
        'gray94' => 'f0f0f0',
        'gray95' => 'f2f2f2',
        'gray97' => 'f7f7f7',
        'gray98' => 'fafafa',
        'gray99' => 'fcfcfc',
        'green' => '00ff00',
        'green1' => '00ff00',
        'green2' => '00ee00',
        'green3' => '00cd00',
        'green4' => '008b00',
        'greenyellow' => 'adff2f',
        'honeydew1' => 'f0fff0',
        'honeydew2' => 'e0eee0',
        'honeydew3' => 'c1cdc1',
        'honeydew4' => '838b83',
        'hotpink' => 'ff69b4',
        'hotpink1' => 'ff6eb4',
        'hotpink2' => 'ee6aa7',
        'hotpink3' => 'cd6090',
        'hotpink4' => '8b3a62',
        'indianred' => 'cd5c5c',
        'indianred1' => 'ff6a6a',
        'indianred2' => 'ee6363',
        'indianred3' => 'cd5555',
        'indianred4' => '8b3a3a',
        'ivory1' => 'fffff0',
        'ivory2' => 'eeeee0',
        'ivory3' => 'cdcdc1',
        'ivory4' => '8b8b83',
        'khaki' => 'f0e68c',
        'khaki1' => 'fff68f',
        'khaki2' => 'eee685',
        'khaki3' => 'cdc673',
        'khaki4' => '8b864e',
        'lavender' => 'e6e6fa',
        'lavenderblush1' => 'fff0f5',
        'lavenderblush2' => 'eee0e5',
        'lavenderblush3' => 'cdc1c5',
        'lavenderblush4' => '8b8386',
        'lawngreen' => '7cfc00',
        'lemonchiffon1' => 'fffacd',
        'lemonchiffon2' => 'eee9bf',
        'lemonchiffon3' => 'cdc9a5',
        'lemonchiffon4' => '8b8970',
        'light' => 'eedd82',
        'lightblue' => 'add8e6',
        'lightblue1' => 'bfefff',
        'lightblue2' => 'b2dfee',
        'lightblue3' => '9ac0cd',
        'lightblue4' => '68838b',
        'lightcoral' => 'f08080',
        'lightcyan1' => 'e0ffff',
        'lightcyan2' => 'd1eeee',
        'lightcyan3' => 'b4cdcd',
        'lightcyan4' => '7a8b8b',
        'lightgoldenrod1' => 'ffec8b',
        'lightgoldenrod2' => 'eedc82',
        'lightgoldenrod3' => 'cdbe70',
        'lightgoldenrod4' => '8b814c',
        'lightgoldenrodyellow' => 'fafad2',
        'lightgray' => 'd3d3d3',
        'lightpink' => 'ffb6c1',
        'lightpink1' => 'ffaeb9',
        'lightpink2' => 'eea2ad',
        'lightpink3' => 'cd8c95',
        'lightpink4' => '8b5f65',
        'lightsalmon1' => 'ffa07a',
        'lightsalmon2' => 'ee9572',
        'lightsalmon3' => 'cd8162',
        'lightsalmon4' => '8b5742',
        'lightseagreen' => '20b2aa',
        'lightskyblue' => '87cefa',
        'lightskyblue1' => 'b0e2ff',
        'lightskyblue2' => 'a4d3ee',
        'lightskyblue3' => '8db6cd',
        'lightskyblue4' => '607b8b',
        'lightslateblue' => '8470ff',
        'lightslategray' => '778899',
        'lightsteelblue' => 'b0c4de',
        'lightsteelblue1' => 'cae1ff',
        'lightsteelblue2' => 'bcd2ee',
        'lightsteelblue3' => 'a2b5cd',
        'lightsteelblue4' => '6e7b8b',
        'lightyellow1' => 'ffffe0',
        'lightyellow2' => 'eeeed1',
        'lightyellow3' => 'cdcdb4',
        'lightyellow4' => '8b8b7a',
        'lime' => '00ff00',
        'limegreen' => '32cd32',
        'linen' => 'faf0e6',
        'magenta' => 'ff00ff',
        'magenta2' => 'ee00ee',
        'magenta3' => 'cd00cd',
        'magenta4' => '8b008b',
        'maroon' => 'b03060',
        'maroon1' => 'ff34b3',
        'maroon2' => 'ee30a7',
        'maroon3' => 'cd2990',
        'maroon4' => '8b1c62',
        'medium' => '66cdaa',
        'mediumaquamarine' => '66cdaa',
        'mediumblue' => '0000cd',
        'mediumorchid' => 'ba55d3',
        'mediumorchid1' => 'e066ff',
        'mediumorchid2' => 'd15fee',
        'mediumorchid3' => 'b452cd',
        'mediumorchid4' => '7a378b',
        'mediumpurple' => '9370db',
        'mediumpurple1' => 'ab82ff',
        'mediumpurple2' => '9f79ee',
        'mediumpurple3' => '8968cd',
        'mediumpurple4' => '5d478b',
        'mediumseagreen' => '3cb371',
        'mediumslateblue' => '7b68ee',
        'mediumspringgreen' => '00fa9a',
        'mediumturquoise' => '48d1cc',
        'mediumvioletred' => 'c71585',
        'midnightblue' => '191970',
        'mintcream' => 'f5fffa',
        'mistyrose1' => 'ffe4e1',
        'mistyrose2' => 'eed5d2',
        'mistyrose3' => 'cdb7b5',
        'mistyrose4' => '8b7d7b',
        'moccasin' => 'ffe4b5',
        'navajowhite1' => 'ffdead',
        'navajowhite2' => 'eecfa1',
        'navajowhite3' => 'cdb38b',
        'navajowhite4' => '8b795e',
        'navy' => '000080',
        'navyblue' => '000080',
        'oldlace' => 'fdf5e6',
        'olive' => '808000',
        'olivedrab' => '6b8e23',
        'olivedrab1' => 'c0ff3e',
        'olivedrab2' => 'b3ee3a',
        'olivedrab4' => '698b22',
        'orange' => 'ffa500',
        'orange1' => 'ffa500',
        'orange2' => 'ee9a00',
        'orange3' => 'cd8500',
        'orange4' => '8b5a00',
        'orangered1' => 'ff4500',
        'orangered2' => 'ee4000',
        'orangered3' => 'cd3700',
        'orangered4' => '8b2500',
        'orchid' => 'da70d6',
        'orchid1' => 'ff83fa',
        'orchid2' => 'ee7ae9',
        'orchid3' => 'cd69c9',
        'orchid4' => '8b4789',
        'pale' => 'db7093',
        'palegoldenrod' => 'eee8aa',
        'palegreen' => '98fb98',
        'palegreen1' => '9aff9a',
        'palegreen2' => '90ee90',
        'palegreen3' => '7ccd7c',
        'palegreen4' => '548b54',
        'paleturquoise' => 'afeeee',
        'paleturquoise1' => 'bbffff',
        'paleturquoise2' => 'aeeeee',
        'paleturquoise3' => '96cdcd',
        'paleturquoise4' => '668b8b',
        'palevioletred' => 'db7093',
        'palevioletred1' => 'ff82ab',
        'palevioletred2' => 'ee799f',
        'palevioletred3' => 'cd6889',
        'palevioletred4' => '8b475d',
        'papayawhip' => 'ffefd5',
        'peachpuff1' => 'ffdab9',
        'peachpuff2' => 'eecbad',
        'peachpuff3' => 'cdaf95',
        'peachpuff4' => '8b7765',
        'pink' => 'ffc0cb',
        'pink1' => 'ffb5c5',
        'pink2' => 'eea9b8',
        'pink3' => 'cd919e',
        'pink4' => '8b636c',
        'plum' => 'dda0dd',
        'plum1' => 'ffbbff',
        'plum2' => 'eeaeee',
        'plum3' => 'cd96cd',
        'plum4' => '8b668b',
        'powderblue' => 'b0e0e6',
        'purple' => 'a020f0',
        'rebeccapurple' => '663399',
        'purple1' => '9b30ff',
        'purple2' => '912cee',
        'purple3' => '7d26cd',
        'purple4' => '551a8b',
        'red' => 'ff0000',
        'red1' => 'ff0000',
        'red2' => 'ee0000',
        'red3' => 'cd0000',
        'red4' => '8b0000',
        'rosybrown' => 'bc8f8f',
        'rosybrown1' => 'ffc1c1',
        'rosybrown2' => 'eeb4b4',
        'rosybrown3' => 'cd9b9b',
        'rosybrown4' => '8b6969',
        'royalblue' => '4169e1',
        'royalblue1' => '4876ff',
        'royalblue2' => '436eee',
        'royalblue3' => '3a5fcd',
        'royalblue4' => '27408b',
        'saddlebrown' => '8b4513',
        'salmon' => 'fa8072',
        'salmon1' => 'ff8c69',
        'salmon2' => 'ee8262',
        'salmon3' => 'cd7054',
        'salmon4' => '8b4c39',
        'sandybrown' => 'f4a460',
        'seagreen1' => '54ff9f',
        'seagreen2' => '4eee94',
        'seagreen3' => '43cd80',
        'seagreen4' => '2e8b57',
        'seashell1' => 'fff5ee',
        'seashell2' => 'eee5de',
        'seashell3' => 'cdc5bf',
        'seashell4' => '8b8682',
        'sienna' => 'a0522d',
        'sienna1' => 'ff8247',
        'sienna2' => 'ee7942',
        'sienna3' => 'cd6839',
        'sienna4' => '8b4726',
        'silver' => 'c0c0c0',
        'skyblue' => '87ceeb',
        'skyblue1' => '87ceff',
        'skyblue2' => '7ec0ee',
        'skyblue3' => '6ca6cd',
        'skyblue4' => '4a708b',
        'slateblue' => '6a5acd',
        'slateblue1' => '836fff',
        'slateblue2' => '7a67ee',
        'slateblue3' => '6959cd',
        'slateblue4' => '473c8b',
        'slategray' => '708090',
        'slategray1' => 'c6e2ff',
        'slategray2' => 'b9d3ee',
        'slategray3' => '9fb6cd',
        'slategray4' => '6c7b8b',
        'snow1' => 'fffafa',
        'snow2' => 'eee9e9',
        'snow3' => 'cdc9c9',
        'snow4' => '8b8989',
        'springgreen1' => '00ff7f',
        'springgreen2' => '00ee76',
        'springgreen3' => '00cd66',
        'springgreen4' => '008b45',
        'steelblue' => '4682b4',
        'steelblue1' => '63b8ff',
        'steelblue2' => '5cacee',
        'steelblue3' => '4f94cd',
        'steelblue4' => '36648b',
        'tan' => 'd2b48c',
        'tan1' => 'ffa54f',
        'tan2' => 'ee9a49',
        'tan3' => 'cd853f',
        'tan4' => '8b5a2b',
        'teal' => '008080',
        'thistle' => 'd8bfd8',
        'thistle1' => 'ffe1ff',
        'thistle2' => 'eed2ee',
        'thistle3' => 'cdb5cd',
        'thistle4' => '8b7b8b',
        'tomato1' => 'ff6347',
        'tomato2' => 'ee5c42',
        'tomato3' => 'cd4f39',
        'tomato4' => '8b3626',
        'turquoise' => '40e0d0',
        'turquoise1' => '00f5ff',
        'turquoise2' => '00e5ee',
        'turquoise3' => '00c5cd',
        'turquoise4' => '00868b',
        'violet' => 'ee82ee',
        'violetred' => 'd02090',
        'violetred1' => 'ff3e96',
        'violetred2' => 'ee3a8c',
        'violetred3' => 'cd3278',
        'violetred4' => '8b2252',
        'wheat' => 'f5deb3',
        'wheat1' => 'ffe7ba',
        'wheat2' => 'eed8ae',
        'wheat3' => 'cdba96',
        'wheat4' => '8b7e66',
        'white' => 'ffffff',
        'whitesmoke' => 'f5f5f5',
        'yellow' => 'ffff00',
        'yellow1' => 'ffff00',
        'yellow2' => 'eeee00',
        'yellow3' => 'cdcd00',
        'yellow4' => '8b8b00',
        'yellowgreen' => '9acd32',
    ];

    /** @var ?string */
    private $face;

    /** @var ?string */
    private $size;

    /** @var ?string */
    private $color;

    /** @var bool */
    private $bold = false;

    /** @var bool */
    private $italic = false;

    /** @var bool */
    private $underline = false;

    /** @var bool */
    private $superscript = false;

    /** @var bool */
    private $subscript = false;

    /** @var bool */
    private $strikethrough = false;

    private const START_TAG_CALLBACKS = [
        'font' => 'startFontTag',
        'b' => 'startBoldTag',
        'strong' => 'startBoldTag',
        'i' => 'startItalicTag',
        'em' => 'startItalicTag',
        'u' => 'startUnderlineTag',
        'ins' => 'startUnderlineTag',
        'del' => 'startStrikethruTag',
        'sup' => 'startSuperscriptTag',
        'sub' => 'startSubscriptTag',
    ];

    private const END_TAG_CALLBACKS = [
        'font' => 'endFontTag',
        'b' => 'endBoldTag',
        'strong' => 'endBoldTag',
        'i' => 'endItalicTag',
        'em' => 'endItalicTag',
        'u' => 'endUnderlineTag',
        'ins' => 'endUnderlineTag',
        'del' => 'endStrikethruTag',
        'sup' => 'endSuperscriptTag',
        'sub' => 'endSubscriptTag',
        'br' => 'breakTag',
        'p' => 'breakTag',
        'h1' => 'breakTag',
        'h2' => 'breakTag',
        'h3' => 'breakTag',
        'h4' => 'breakTag',
        'h5' => 'breakTag',
        'h6' => 'breakTag',
    ];

    /** @var array */
    private $stack = [];

    /** @var string */
    private $stringData = '';

    /**
     * @var RichText
     */
    private $richTextObject;

    private function initialise(): void
    {
        $this->face = $this->size = $this->color = null;
        $this->bold = $this->italic = $this->underline = $this->superscript = $this->subscript = $this->strikethrough = false;

        $this->stack = [];

        $this->stringData = '';
    }

    /**
     * Parse HTML formatting and return the resulting RichText.
     *
     * @param string $html
     *
     * @return RichText
     */
    public function toRichTextObject($html)
    {
        $this->initialise();

        //    Create a new DOM object
        $dom = new DOMDocument();
        //    Load the HTML file into the DOM object
        //  Note the use of error suppression, because typically this will be an html fragment, so not fully valid markup
        $prefix = '<?xml encoding="UTF-8">';
        /** @scrutinizer ignore-unhandled */
        @$dom->loadHTML($prefix . $html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
        //    Discard excess white space
        $dom->preserveWhiteSpace = false;

        $this->richTextObject = new RichText();
        $this->parseElements($dom);

        // Clean any further spurious whitespace
        $this->cleanWhitespace();

        return $this->richTextObject;
    }

    private function cleanWhitespace(): void
    {
        foreach ($this->richTextObject->getRichTextElements() as $key => $element) {
            $text = $element->getText();
            // Trim any leading spaces on the first run
            if ($key == 0) {
                $text = ltrim($text);
            }
            // Trim any spaces immediately after a line break
            $text = (string) preg_replace('/\n */mu', "\n", $text);
            $element->setText($text);
        }
    }

    private function buildTextRun(): void
    {
        $text = $this->stringData;
        if (trim($text) === '') {
            return;
        }

        $richtextRun = $this->richTextObject->createTextRun($this->stringData);
        $font = $richtextRun->getFont();
        if ($font !== null) {
            if ($this->face) {
                $font->setName($this->face);
            }
            if ($this->size) {
                $font->setSize($this->size);
            }
            if ($this->color) {
                $font->setColor(new Color('ff' . $this->color));
            }
            if ($this->bold) {
                $font->setBold(true);
            }
            if ($this->italic) {
                $font->setItalic(true);
            }
            if ($this->underline) {
                $font->setUnderline(Font::UNDERLINE_SINGLE);
            }
            if ($this->superscript) {
                $font->setSuperscript(true);
            }
            if ($this->subscript) {
                $font->setSubscript(true);
            }
            if ($this->strikethrough) {
                $font->setStrikethrough(true);
            }
        }
        $this->stringData = '';
    }

    private function rgbToColour(string $rgbValue): string
    {
        preg_match_all('/\d+/', $rgbValue, $values);
        foreach ($values[0] as &$value) {
            $value = str_pad(dechex($value), 2, '0', STR_PAD_LEFT);
        }

        return implode('', $values[0]);
    }

    public static function colourNameLookup(string $colorName): string
    {
        return self::COLOUR_MAP[$colorName] ?? '';
    }

    protected function startFontTag(DOMElement $tag): void
    {
        $attrs = $tag->attributes;
        if ($attrs !== null) {
            foreach ($attrs as $attribute) {
                $attributeName = strtolower($attribute->name);
                $attributeValue = $attribute->value;

                if ($attributeName == 'color') {
                    if (preg_match('/rgb\s*\(/', $attributeValue)) {
                        $this->$attributeName = $this->rgbToColour($attributeValue);
                    } elseif (strpos(trim($attributeValue), '#') === 0) {
                        $this->$attributeName = ltrim($attributeValue, '#');
                    } else {
                        $this->$attributeName = static::colourNameLookup($attributeValue);
                    }
                } else {
                    $this->$attributeName = $attributeValue;
                }
            }
        }
    }

    protected function endFontTag(): void
    {
        $this->face = $this->size = $this->color = null;
    }

    protected function startBoldTag(): void
    {
        $this->bold = true;
    }

    protected function endBoldTag(): void
    {
        $this->bold = false;
    }

    protected function startItalicTag(): void
    {
        $this->italic = true;
    }

    protected function endItalicTag(): void
    {
        $this->italic = false;
    }

    protected function startUnderlineTag(): void
    {
        $this->underline = true;
    }

    protected function endUnderlineTag(): void
    {
        $this->underline = false;
    }

    protected function startSubscriptTag(): void
    {
        $this->subscript = true;
    }

    protected function endSubscriptTag(): void
    {
        $this->subscript = false;
    }

    protected function startSuperscriptTag(): void
    {
        $this->superscript = true;
    }

    protected function endSuperscriptTag(): void
    {
        $this->superscript = false;
    }

    protected function startStrikethruTag(): void
    {
        $this->strikethrough = true;
    }

    protected function endStrikethruTag(): void
    {
        $this->strikethrough = false;
    }

    protected function breakTag(): void
    {
        $this->stringData .= "\n";
    }

    private function parseTextNode(DOMText $textNode): void
    {
        $domText = (string) preg_replace(
            '/\s+/u',
            ' ',
            str_replace(["\r", "\n"], ' ', $textNode->nodeValue ?? '')
        );
        $this->stringData .= $domText;
        $this->buildTextRun();
    }

    /**
     * @param string $callbackTag
     */
    private function handleCallback(DOMElement $element, $callbackTag, array $callbacks): void
    {
        if (isset($callbacks[$callbackTag])) {
            $elementHandler = $callbacks[$callbackTag];
            if (method_exists($this, $elementHandler)) {
                /** @var callable */
                $callable = [$this, $elementHandler];
                call_user_func($callable, $element);
            }
        }
    }

    private function parseElementNode(DOMElement $element): void
    {
        $callbackTag = strtolower($element->nodeName);
        $this->stack[] = $callbackTag;

        $this->handleCallback($element, $callbackTag, self::START_TAG_CALLBACKS);

        $this->parseElements($element);
        array_pop($this->stack);

        $this->handleCallback($element, $callbackTag, self::END_TAG_CALLBACKS);
    }

    private function parseElements(DOMNode $element): void
    {
        foreach ($element->childNodes as $child) {
            if ($child instanceof DOMText) {
                $this->parseTextNode($child);
            } elseif ($child instanceof DOMElement) {
                $this->parseElementNode($child);
            }
        }
    }
}
Privacy Policy
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At NFC Pay, your privacy is of utmost importance to us. This Privacy Policy outlines how we collect, use, share, and protect your personal information when you use our services, including our website and mobile applications.
1. Information We Collect
 

2. How We Use Your Information
We use the information we collect for the following purposes:
 

3. Sharing Your Information
We may share your personal information in the following circumstances:
 

4. Security of Your Information
We take the security of your personal information seriously and implement a variety of security measures, including encryption, secure servers, and access controls, to protect your data from unauthorized access, disclosure, alteration, or destruction. However, no method of transmission over the internet or electronic storage is completely secure, and we cannot guarantee its absolute security.
5. Your Privacy Rights
Depending on your location, you may have certain rights regarding your personal information, such as:
 

6. Third-Party Links
Our services may contain links to third-party websites or services. We are not responsible for the privacy practices or the content of these third-party sites. We encourage you to review the privacy policies of those third parties.
7. Children’s Privacy
Our services are not intended for individuals under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have collected personal information from a child under 13, we will take steps to delete that information.
8. Changes to This Privacy Policy
We may update this Privacy Policy from time to time to reflect changes in our practices or for other operational, legal, or regulatory reasons. We will notify you of any significant changes by posting the new Privacy Policy on our website and updating the effective date.
9. Contact Us
If you have any questions or concerns about this Privacy Policy or our data practices, please contact us at:
Email: support@nfcpay.com