initial commit

node_modules/autoprefixer/lib/browsers.js

@@ -0,0 +1,99 @@
+"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;