96 lines
2.9 KiB
JavaScript
96 lines
2.9 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _postcss = require("postcss");
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var _postcssValueParser = require("postcss-value-parser");
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var _postcssValueParser2 = _interopRequireDefault(_postcssValueParser);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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const atrule = "atrule";
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const decl = "decl";
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const rule = "rule";
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function reduceCalcWhitespaces(node) {
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if (node.type === "space") {
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node.value = " ";
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} else if (node.type === "function") {
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node.before = node.after = "";
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}
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}
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function reduceWhitespaces(node) {
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if (node.type === "space") {
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node.value = " ";
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} else if (node.type === "div") {
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node.before = node.after = "";
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} else if (node.type === "function") {
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node.before = node.after = "";
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if (node.value.toLowerCase() === "calc") {
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_postcssValueParser2.default.walk(node.nodes, reduceCalcWhitespaces);
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return false;
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}
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}
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}
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exports.default = (0, _postcss.plugin)("postcss-normalize-whitespace", () => {
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return css => {
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const cache = {};
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css.walk(node => {
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const { type } = node;
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if (~[decl, rule, atrule].indexOf(type) && node.raws.before) {
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node.raws.before = node.raws.before.replace(/\s/g, "");
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}
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if (type === decl) {
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// Ensure that !important values do not have any excess whitespace
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if (node.important) {
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node.raws.important = "!important";
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}
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// Remove whitespaces around ie 9 hack
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node.value = node.value.replace(/\s*(\\9)\s*/, "$1");
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const value = node.value;
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if (cache[value]) {
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node.value = cache[value];
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} else {
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const parsed = (0, _postcssValueParser2.default)(node.value);
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const result = parsed.walk(reduceWhitespaces).toString();
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// Trim whitespace inside functions & dividers
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node.value = result;
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cache[value] = result;
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}
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// Remove extra semicolons and whitespace before the declaration
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if (node.raws.before) {
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const prev = node.prev();
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if (prev && prev.type !== rule) {
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node.raws.before = node.raws.before.replace(/;/g, "");
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}
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}
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node.raws.between = ":";
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node.raws.semicolon = false;
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} else if (type === rule || type === atrule) {
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node.raws.between = node.raws.after = "";
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node.raws.semicolon = false;
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}
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});
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// Remove final newline
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css.raws.after = "";
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};
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});
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module.exports = exports["default"];
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