travel/admin/node_modules/postcss-merge-longhand/dist/lib/parseWsc.js

65 lines
1.6 KiB
JavaScript

'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = parseWsc;
var _postcss = require('postcss');
var _validateWsc = require('./validateWsc');
const none = /^\s*(none|medium)(\s+none(\s+(none|currentcolor))?)?\s*$/i;
const varRE = /(^.*var)(.*\(.*--.*\))(.*)/i;
const varPreserveCase = p => `${p[1].toLowerCase()}${p[2]}${p[3].toLowerCase()}`;
const toLower = v => {
const match = varRE.exec(v);
return match ? varPreserveCase(match) : v.toLowerCase();
};
function parseWsc(value) {
if (none.test(value)) {
return ['medium', 'none', 'currentcolor'];
}
let width, style, color;
const values = _postcss.list.space(value);
if (values.length > 1 && (0, _validateWsc.isStyle)(values[1]) && values[0].toLowerCase() === 'none') {
values.unshift();
width = '0';
}
const unknown = [];
values.forEach(v => {
if ((0, _validateWsc.isStyle)(v)) {
style = toLower(v);
} else if ((0, _validateWsc.isWidth)(v)) {
width = toLower(v);
} else if ((0, _validateWsc.isColor)(v)) {
color = toLower(v);
} else {
unknown.push(v);
}
});
if (unknown.length) {
if (!width && style && color) {
width = unknown.pop();
}
if (width && !style && color) {
style = unknown.pop();
}
if (width && style && !color) {
color = unknown.pop();
}
}
return [width, style, color];
}
module.exports = exports['default'];