3 var browserslist = require('browserslist');
5 function capitalize(str) {
6 return str.slice(0, 1).toUpperCase() + str.slice(1);
13 op_mini: 'Opera Mini',
14 op_mob: 'Opera Mobile',
15 and_chr: 'Chrome for Android',
16 and_ff: 'Firefox for Android',
17 and_uc: 'UC for Android'
20 var prefix = function prefix(name, prefixes) {
21 var out = ' ' + name + ': ';
22 out += prefixes.map(function (i) {
23 return i.replace(/^-(.*)-$/g, '$1');
29 module.exports = function (prefixes) {
30 if (prefixes.browsers.selected.length === 0) {
31 return 'No browsers selected';
35 for (var _iterator = prefixes.browsers.selected, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
39 if (_i >= _iterator.length) break;
40 _ref = _iterator[_i++];
42 _i = _iterator.next();
49 var _browser$split = browser.split(' '),
50 name = _browser$split[0],
51 version = _browser$split[1];
53 name = names[name] || capitalize(name);
55 versions[name].push(version);
57 versions[name] = [version];
61 var out = 'Browsers:\n';
62 for (var _browser in versions) {
63 var list = versions[_browser];
64 list = list.sort(function (a, b) {
65 return parseFloat(b) - parseFloat(a);
67 out += ' ' + _browser + ': ' + list.join(', ') + '\n';
70 var coverage = browserslist.coverage(prefixes.browsers.selected);
71 var round = Math.round(coverage * 100) / 100.0;
72 out += '\nThese browsers account for ' + round + '% of all users globally\n';
75 for (var name in prefixes.add) {
76 var data = prefixes.add[name];
77 if (name[0] === '@' && data.prefixes) {
78 atrules += prefix(name, data.prefixes);
82 out += '\nAt-Rules:\n' + atrules;
86 for (var _iterator2 = prefixes.add.selectors, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
90 if (_i2 >= _iterator2.length) break;
91 _ref2 = _iterator2[_i2++];
93 _i2 = _iterator2.next();
100 if (selector.prefixes) {
101 selectors += prefix(selector.name, selector.prefixes);
104 if (selectors !== '') {
105 out += '\nSelectors:\n' + selectors;
110 for (var _name in prefixes.add) {
111 var _data = prefixes.add[_name];
112 if (_name[0] !== '@' && _data.prefixes) {
113 props += prefix(_name, _data.prefixes);
119 for (var _iterator3 = _data.values, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
123 if (_i3 >= _iterator3.length) break;
124 _ref3 = _iterator3[_i3++];
126 _i3 = _iterator3.next();
133 var string = prefix(value.name, value.prefixes);
134 if (values.indexOf(string) === -1) {
141 out += '\nProperties:\n' + props;
144 out += '\nValues:\n' + values;
147 if (atrules === '' && selectors === '' && props === '' && values === '') {
148 out += '\nAwesome! Your browsers don\'t require any vendor prefixes.' + '\nNow you can remove Autoprefixer from build steps.';