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"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.includes(browser);
};
return Browsers;
}();
module.exports = Browsers;
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