66 lines
1.7 KiB
JavaScript
66 lines
1.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = function (calc, node, precision) {
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var str = stringify(node, precision);
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if (node.type === "MathExpression") {
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// if calc expression couldn't be resolved to a single value, re-wrap it as
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// a calc()
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str = calc + "(" + str + ")";
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}
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return str;
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};
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var _reducer = require("./reducer");
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var order = {
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"*": 0,
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"/": 0,
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"+": 1,
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"-": 1
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};
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function round(value, prec) {
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if (prec !== false) {
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var precision = Math.pow(10, prec);
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return Math.round(value * precision) / precision;
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}
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return value;
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}
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function stringify(node, prec) {
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switch (node.type) {
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case "MathExpression":
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{
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var left = node.left,
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right = node.right,
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op = node.operator;
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var str = "";
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if (left.type === 'MathExpression' && order[op] < order[left.operator]) str += "(" + stringify(left, prec) + ")";else str += stringify(left, prec);
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str += " " + node.operator + " ";
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if (right.type === 'MathExpression' && order[op] < order[right.operator]) str += "(" + stringify(right, prec) + ")";else if (right.type === 'MathExpression' && op === "-" && ["+", "-"].includes(right.operator)) {
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// fix #52 : a-(b+c) = a-b-c
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right.operator = (0, _reducer.flip)(right.operator);
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str += stringify(right, prec);
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} else str += stringify(right, prec);
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return str;
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}
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case "Value":
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return round(node.value, prec);
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case 'CssVariable':
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return node.value;
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default:
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return round(node.value, prec) + node.unit;
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}
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}
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module.exports = exports["default"]; |