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node_modules/autoprefixer/lib/info.js 3.23 KB
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  (function() {
    var browserslist, capitalize, names, prefix;
  
    browserslist = require('browserslist');
  
    capitalize = function(str) {
      return str.slice(0, 1).toUpperCase() + str.slice(1);
    };
  
    names = {
      ie: 'IE',
      ie_mob: 'IE Mobile',
      ios_saf: 'iOS',
      op_mini: 'Opera Mini',
      op_mob: 'Opera Mobile',
      and_chr: 'Chrome for Android',
      and_ff: 'Firefox for Android',
      and_uc: 'UC for Android'
    };
  
    prefix = function(name, prefixes) {
      var out;
      out = '  ' + name + ': ';
      out += prefixes.map(function(i) {
        return i.replace(/^-(.*)-$/g, '$1');
      }).join(', ');
      out += "\n";
      return out;
    };
  
    module.exports = function(prefixes) {
      var atrules, browser, coverage, data, j, k, l, len, len1, len2, list, name, out, props, ref, ref1, ref2, ref3, ref4, ref5, round, selector, selectors, string, value, values, version, versions;
      if (prefixes.browsers.selected.length === 0) {
        return "No browsers selected";
      }
      versions = [];
      ref = prefixes.browsers.selected;
      for (j = 0, len = ref.length; j < len; j++) {
        browser = ref[j];
        ref1 = browser.split(' '), name = ref1[0], version = ref1[1];
        name = names[name] || capitalize(name);
        if (versions[name]) {
          versions[name].push(version);
        } else {
          versions[name] = [version];
        }
      }
      out = "Browsers:\n";
      for (browser in versions) {
        list = versions[browser];
        list = list.sort(function(a, b) {
          return parseFloat(b) - parseFloat(a);
        });
        out += '  ' + browser + ': ' + list.join(', ') + "\n";
      }
      coverage = browserslist.coverage(prefixes.browsers.selected);
      round = Math.round(coverage * 100) / 100.0;
      out += "\nThese browsers account for " + round + "% of all users globally\n";
      atrules = '';
      ref2 = prefixes.add;
      for (name in ref2) {
        data = ref2[name];
        if (name[0] === '@' && data.prefixes) {
          atrules += prefix(name, data.prefixes);
        }
      }
      if (atrules !== '') {
        out += "\nAt-Rules:\n" + atrules;
      }
      selectors = '';
      ref3 = prefixes.add.selectors;
      for (k = 0, len1 = ref3.length; k < len1; k++) {
        selector = ref3[k];
        if (selector.prefixes) {
          selectors += prefix(selector.name, selector.prefixes);
        }
      }
      if (selectors !== '') {
        out += "\nSelectors:\n" + selectors;
      }
      values = '';
      props = '';
      ref4 = prefixes.add;
      for (name in ref4) {
        data = ref4[name];
        if (name[0] !== '@' && data.prefixes) {
          props += prefix(name, data.prefixes);
        }
        if (!data.values) {
          continue;
        }
        ref5 = data.values;
        for (l = 0, len2 = ref5.length; l < len2; l++) {
          value = ref5[l];
          string = prefix(value.name, value.prefixes);
          if (values.indexOf(string) === -1) {
            values += string;
          }
        }
      }
      if (props !== '') {
        out += "\nProperties:\n" + props;
      }
      if (values !== '') {
        out += "\nValues:\n" + values;
      }
      if (atrules === '' && selectors === '' && props === '' && values === '') {
        out += '\nAwesome! Your browsers don\'t require any vendor prefixes.' + '\nNow you can remove Autoprefixer from build steps.';
      }
      return out;
    };
  
  }).call(this);