| "use strict"; |
| |
| var browserslist = require('browserslist'); |
| |
| var agents = require('caniuse-lite').agents; |
| |
| var utils = require('./utils'); |
| |
| var Browsers = |
| /*#__PURE__*/ |
| function () { |
| /** |
| * Return all prefixes for default browser data |
| */ |
| Browsers.prefixes = function prefixes() { |
| if (this.prefixesCache) { |
| return this.prefixesCache; |
| } |
| |
| this.prefixesCache = []; |
| |
| for (var name in agents) { |
| this.prefixesCache.push("-" + agents[name].prefix + "-"); |
| } |
| |
| this.prefixesCache = utils.uniq(this.prefixesCache).sort(function (a, b) { |
| return b.length - a.length; |
| }); |
| return this.prefixesCache; |
| } |
| /** |
| * Check is value contain any possible prefix |
| */ |
| ; |
| |
| Browsers.withPrefix = function withPrefix(value) { |
| if (!this.prefixesRegexp) { |
| this.prefixesRegexp = new RegExp(this.prefixes().join('|')); |
| } |
| |
| return this.prefixesRegexp.test(value); |
| }; |
| |
| function Browsers(data, requirements, options, browserslistOpts) { |
| this.data = data; |
| this.options = options || {}; |
| this.browserslistOpts = browserslistOpts || {}; |
| this.selected = this.parse(requirements); |
| } |
| /** |
| * Return browsers selected by requirements |
| */ |
| |
| |
| var _proto = Browsers.prototype; |
| |
| _proto.parse = function parse(requirements) { |
| var opts = {}; |
| |
| for (var i in this.browserslistOpts) { |
| opts[i] = this.browserslistOpts[i]; |
| } |
| |
| opts.path = this.options.from; |
| opts.env = this.options.env; |
| return browserslist(requirements, opts); |
| } |
| /** |
| * Return prefix for selected browser |
| */ |
| ; |
| |
| _proto.prefix = function prefix(browser) { |
| var _browser$split = browser.split(' '), |
| name = _browser$split[0], |
| version = _browser$split[1]; |
| |
| var data = this.data[name]; |
| var prefix = data.prefix_exceptions && data.prefix_exceptions[version]; |
| |
| if (!prefix) { |
| prefix = data.prefix; |
| } |
| |
| return "-" + prefix + "-"; |
| } |
| /** |
| * Is browser is selected by requirements |
| */ |
| ; |
| |
| _proto.isSelected = function isSelected(browser) { |
| return this.selected.indexOf(browser) !== -1; |
| }; |
| |
| return Browsers; |
| }(); |
| |
| module.exports = Browsers; |