ce4c83ff
 wxy
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(function() {
var Browsers, browserslist, utils;
browserslist = require('browserslist');
utils = require('./utils');
Browsers = (function() {
Browsers.prefixes = function() {
var data, i, name;
if (this.prefixesCache) {
return this.prefixesCache;
}
data = require('caniuse-db/data.json').agents;
return this.prefixesCache = utils.uniq((function() {
var results;
results = [];
for (name in data) {
i = data[name];
results.push("-" + i.prefix + "-");
}
return results;
})()).sort(function(a, b) {
return b.length - a.length;
});
};
Browsers.withPrefix = function(value) {
if (!this.prefixesRegexp) {
this.prefixesRegexp = RegExp("" + (this.prefixes().join('|')));
}
return this.prefixesRegexp.test(value);
};
function Browsers(data1, requirements, options, stats) {
this.data = data1;
this.options = options;
this.stats = stats;
this.selected = this.parse(requirements);
}
Browsers.prototype.parse = function(requirements) {
var ref, ref1;
return browserslist(requirements, {
stats: this.stats,
path: (ref = this.options) != null ? ref.from : void 0,
env: (ref1 = this.options) != null ? ref1.env : void 0
});
};
Browsers.prototype.browsers = function(criteria) {
var browser, data, ref, selected, versions;
selected = [];
ref = this.data;
for (browser in ref) {
data = ref[browser];
versions = criteria(data).map(function(version) {
return browser + " " + version;
});
selected = selected.concat(versions);
}
return selected;
};
Browsers.prototype.prefix = function(browser) {
var data, name, prefix, ref, version;
ref = browser.split(' '), name = ref[0], version = ref[1];
data = this.data[name];
if (data.prefix_exceptions) {
prefix = data.prefix_exceptions[version];
}
prefix || (prefix = data.prefix);
return '-' + prefix + '-';
};
Browsers.prototype.isSelected = function(browser) {
return this.selected.indexOf(browser) !== -1;
};
return Browsers;
})();
module.exports = Browsers;
}).call(this);
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