| 1 | "use strict";
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| 2 |
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| 3 | Object.defineProperty(exports, "__esModule", {
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| 4 | value: true
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| 5 | });
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| 6 | exports.reduceCSSCalc = reduceCSSCalc;
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| 7 | exports.safeEvaluateExpression = safeEvaluateExpression;
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| 8 | var _DataUtils = require("./DataUtils");
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| 9 | var _DecimalCSS;
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| 10 | function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
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| 11 | function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
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| 12 | function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
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| 13 | var MULTIPLY_OR_DIVIDE_REGEX = /(-?\d+(?:\.\d+)?[a-zA-Z%]*)([*/])(-?\d+(?:\.\d+)?[a-zA-Z%]*)/;
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| 14 | var ADD_OR_SUBTRACT_REGEX = /(-?\d+(?:\.\d+)?[a-zA-Z%]*)([+-])(-?\d+(?:\.\d+)?[a-zA-Z%]*)/;
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| 15 | var CSS_LENGTH_UNIT_REGEX = /^px|cm|vh|vw|em|rem|%|mm|in|pt|pc|ex|ch|vmin|vmax|Q$/;
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| 16 | var NUM_SPLIT_REGEX = /(-?\d+(?:\.\d+)?)([a-zA-Z%]+)?/;
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| 17 | var CONVERSION_RATES = {
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| 18 | cm: 96 / 2.54,
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| 19 | mm: 96 / 25.4,
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| 20 | pt: 96 / 72,
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| 21 | pc: 96 / 6,
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| 22 | in: 96,
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| 23 | Q: 96 / (2.54 * 40),
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| 24 | px: 1
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| 25 | };
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| 26 | var FIXED_CSS_LENGTH_UNITS = ['cm', 'mm', 'pt', 'pc', 'in', 'Q', 'px'];
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| 27 | function isSupportedUnit(unit) {
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| 28 | return FIXED_CSS_LENGTH_UNITS.includes(unit);
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| 29 | }
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| 30 | var STR_NAN = 'NaN';
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| 31 | function convertToPx(value, unit) {
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| 32 | return value * CONVERSION_RATES[unit];
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| 33 | }
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| 34 | class DecimalCSS {
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| 35 | static parse(str) {
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| 36 | var _NUM_SPLIT_REGEX$exec;
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| 37 | var [, numStr, unit] = (_NUM_SPLIT_REGEX$exec = NUM_SPLIT_REGEX.exec(str)) !== null && _NUM_SPLIT_REGEX$exec !== void 0 ? _NUM_SPLIT_REGEX$exec : [];
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| 38 | if (numStr == null) {
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| 39 | return DecimalCSS.NaN;
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| 40 | }
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| 41 | return new DecimalCSS(parseFloat(numStr), unit !== null && unit !== void 0 ? unit : '');
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| 42 | }
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| 43 | constructor(num, unit) {
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| 44 | this.num = num;
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| 45 | this.unit = unit;
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| 46 | this.num = num;
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| 47 | this.unit = unit;
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| 48 | if ((0, _DataUtils.isNan)(num)) {
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| 49 | this.unit = '';
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| 50 | }
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| 51 | if (unit !== '' && !CSS_LENGTH_UNIT_REGEX.test(unit)) {
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| 52 | this.num = NaN;
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| 53 | this.unit = '';
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| 54 | }
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| 55 | if (isSupportedUnit(unit)) {
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| 56 | this.num = convertToPx(num, unit);
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| 57 | this.unit = 'px';
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| 58 | }
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| 59 | }
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| 60 | add(other) {
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| 61 | if (this.unit !== other.unit) {
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| 62 | return new DecimalCSS(NaN, '');
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| 63 | }
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| 64 | return new DecimalCSS(this.num + other.num, this.unit);
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| 65 | }
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| 66 | subtract(other) {
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| 67 | if (this.unit !== other.unit) {
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| 68 | return new DecimalCSS(NaN, '');
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| 69 | }
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| 70 | return new DecimalCSS(this.num - other.num, this.unit);
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| 71 | }
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| 72 | multiply(other) {
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| 73 | if (this.unit !== '' && other.unit !== '' && this.unit !== other.unit) {
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| 74 | return new DecimalCSS(NaN, '');
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| 75 | }
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| 76 | return new DecimalCSS(this.num * other.num, this.unit || other.unit);
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| 77 | }
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| 78 | divide(other) {
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| 79 | if (this.unit !== '' && other.unit !== '' && this.unit !== other.unit) {
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| 80 | return new DecimalCSS(NaN, '');
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| 81 | }
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| 82 | return new DecimalCSS(this.num / other.num, this.unit || other.unit);
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| 83 | }
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| 84 | toString() {
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| 85 | return "".concat(this.num).concat(this.unit);
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| 86 | }
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| 87 | isNaN() {
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| 88 | return (0, _DataUtils.isNan)(this.num);
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| 89 | }
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| 90 | }
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| 91 | _DecimalCSS = DecimalCSS;
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| 92 | _defineProperty(DecimalCSS, "NaN", new _DecimalCSS(NaN, ''));
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| 93 | function calculateArithmetic(expr) {
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| 94 | if (expr == null || expr.includes(STR_NAN)) {
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| 95 | return STR_NAN;
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| 96 | }
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| 97 | var newExpr = expr;
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| 98 | while (newExpr.includes('*') || newExpr.includes('/')) {
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| 99 | var _MULTIPLY_OR_DIVIDE_R;
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| 100 | var [, leftOperand, operator, rightOperand] = (_MULTIPLY_OR_DIVIDE_R = MULTIPLY_OR_DIVIDE_REGEX.exec(newExpr)) !== null && _MULTIPLY_OR_DIVIDE_R !== void 0 ? _MULTIPLY_OR_DIVIDE_R : [];
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| 101 | var lTs = DecimalCSS.parse(leftOperand !== null && leftOperand !== void 0 ? leftOperand : '');
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| 102 | var rTs = DecimalCSS.parse(rightOperand !== null && rightOperand !== void 0 ? rightOperand : '');
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| 103 | var result = operator === '*' ? lTs.multiply(rTs) : lTs.divide(rTs);
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| 104 | if (result.isNaN()) {
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| 105 | return STR_NAN;
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| 106 | }
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| 107 | newExpr = newExpr.replace(MULTIPLY_OR_DIVIDE_REGEX, result.toString());
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| 108 | }
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| 109 | while (newExpr.includes('+') || /.-\d+(?:\.\d+)?/.test(newExpr)) {
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| 110 | var _ADD_OR_SUBTRACT_REGE;
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| 111 | var [, _leftOperand, _operator, _rightOperand] = (_ADD_OR_SUBTRACT_REGE = ADD_OR_SUBTRACT_REGEX.exec(newExpr)) !== null && _ADD_OR_SUBTRACT_REGE !== void 0 ? _ADD_OR_SUBTRACT_REGE : [];
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| 112 | var _lTs = DecimalCSS.parse(_leftOperand !== null && _leftOperand !== void 0 ? _leftOperand : '');
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| 113 | var _rTs = DecimalCSS.parse(_rightOperand !== null && _rightOperand !== void 0 ? _rightOperand : '');
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| 114 | var _result = _operator === '+' ? _lTs.add(_rTs) : _lTs.subtract(_rTs);
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| 115 | if (_result.isNaN()) {
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| 116 | return STR_NAN;
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| 117 | }
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| 118 | newExpr = newExpr.replace(ADD_OR_SUBTRACT_REGEX, _result.toString());
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| 119 | }
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| 120 | return newExpr;
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| 121 | }
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| 122 | var PARENTHESES_REGEX = /\(([^()]*)\)/;
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| 123 | function calculateParentheses(expr) {
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| 124 | var newExpr = expr;
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| 125 | var match;
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| 126 | // eslint-disable-next-line no-cond-assign
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| 127 | while ((match = PARENTHESES_REGEX.exec(newExpr)) != null) {
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| 128 | var [, parentheticalExpression] = match;
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| 129 | newExpr = newExpr.replace(PARENTHESES_REGEX, calculateArithmetic(parentheticalExpression));
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| 130 | }
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| 131 | return newExpr;
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| 132 | }
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| 133 | function evaluateExpression(expression) {
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| 134 | var newExpr = expression.replace(/\s+/g, '');
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| 135 | newExpr = calculateParentheses(newExpr);
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| 136 | newExpr = calculateArithmetic(newExpr);
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| 137 | return newExpr;
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| 138 | }
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| 139 | function safeEvaluateExpression(expression) {
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| 140 | try {
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| 141 | return evaluateExpression(expression);
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| 142 | } catch (_unused) {
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| 143 | return STR_NAN;
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| 144 | }
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| 145 | }
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| 146 | function reduceCSSCalc(expression) {
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| 147 | var result = safeEvaluateExpression(expression.slice(5, -1));
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| 148 | if (result === STR_NAN) {
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| 149 | return '';
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| 150 | }
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| 151 | return result;
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| 152 | } |
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