var jsReleases = require('node-releases/data/processed/envs.json') var agents = require('caniuse-lite/dist/unpacker/agents').agents var jsEOL = require('node-releases/data/release-schedule/release-schedule.json') var path = require('path') var e2c = require('electron-to-chromium/versions') var BrowserslistError = require('./error') var env = require('./node') // Will load browser.js in webpack var YEAR = 365.259641 * 24 * 60 * 60 * 1000 var ANDROID_EVERGREEN_FIRST = 37 var QUERY_OR = 1 var QUERY_AND = 2 function isVersionsMatch (versionA, versionB) { return (versionA + '.').indexOf(versionB + '.') === 0 } function isEolReleased (name) { var version = name.slice(1) return jsReleases.some(function (i) { return isVersionsMatch(i.version, version) }) } function normalize (versions) { return versions.filter(function (version) { return typeof version === 'string' }) } function normalizeElectron (version) { var versionToUse = version if (version.split('.').length === 3) { versionToUse = version .split('.') .slice(0, -1) .join('.') } return versionToUse } function nameMapper (name) { return function mapName (version) { return name + ' ' + version } } function getMajor (version) { return parseInt(version.split('.')[0]) } function getMajorVersions (released, number) { if (released.length === 0) return [] var majorVersions = uniq(released.map(getMajor)) var minimum = majorVersions[majorVersions.length - number] if (!minimum) { return released } var selected = [] for (var i = released.length - 1; i >= 0; i--) { if (minimum > getMajor(released[i])) break selected.unshift(released[i]) } return selected } function uniq (array) { var filtered = [] for (var i = 0; i < array.length; i++) { if (filtered.indexOf(array[i]) === -1) filtered.push(array[i]) } return filtered } // Helpers function fillUsage (result, name, data) { for (var i in data) { result[name + ' ' + i] = data[i] } } function generateFilter (sign, version) { version = parseFloat(version) if (sign === '>') { return function (v) { return parseFloat(v) > version } } else if (sign === '>=') { return function (v) { return parseFloat(v) >= version } } else if (sign === '<') { return function (v) { return parseFloat(v) < version } } else { return function (v) { return parseFloat(v) <= version } } } function generateSemverFilter (sign, version) { version = version.split('.').map(parseSimpleInt) version[1] = version[1] || 0 version[2] = version[2] || 0 if (sign === '>') { return function (v) { v = v.split('.').map(parseSimpleInt) return compareSemver(v, version) > 0 } } else if (sign === '>=') { return function (v) { v = v.split('.').map(parseSimpleInt) return compareSemver(v, version) >= 0 } } else if (sign === '<') { return function (v) { v = v.split('.').map(parseSimpleInt) return compareSemver(version, v) > 0 } } else { return function (v) { v = v.split('.').map(parseSimpleInt) return compareSemver(version, v) >= 0 } } } function parseSimpleInt (x) { return parseInt(x) } function compare (a, b) { if (a < b) return -1 if (a > b) return +1 return 0 } function compareSemver (a, b) { return ( compare(parseInt(a[0]), parseInt(b[0])) || compare(parseInt(a[1] || '0'), parseInt(b[1] || '0')) || compare(parseInt(a[2] || '0'), parseInt(b[2] || '0')) ) } // this follows the npm-like semver behavior function semverFilterLoose (operator, range) { range = range.split('.').map(parseSimpleInt) if (typeof range[1] === 'undefined') { range[1] = 'x' } // ignore any patch version because we only return minor versions // range[2] = 'x' switch (operator) { case '<=': return function (version) { version = version.split('.').map(parseSimpleInt) return compareSemverLoose(version, range) <= 0 } default: case '>=': return function (version) { version = version.split('.').map(parseSimpleInt) return compareSemverLoose(version, range) >= 0 } } } // this follows the npm-like semver behavior function compareSemverLoose (version, range) { if (version[0] !== range[0]) { return version[0] < range[0] ? -1 : +1 } if (range[1] === 'x') { return 0 } if (version[1] !== range[1]) { return version[1] < range[1] ? -1 : +1 } return 0 } function resolveVersion (data, version) { if (data.versions.indexOf(version) !== -1) { return version } else if (browserslist.versionAliases[data.name][version]) { return browserslist.versionAliases[data.name][version] } else { return false } } function normalizeVersion (data, version) { var resolved = resolveVersion(data, version) if (resolved) { return resolved } else if (data.versions.length === 1) { return data.versions[0] } else { return false } } function filterByYear (since, context) { since = since / 1000 return Object.keys(agents).reduce(function (selected, name) { var data = byName(name, context) if (!data) return selected var versions = Object.keys(data.releaseDate).filter(function (v) { return data.releaseDate[v] >= since }) return selected.concat(versions.map(nameMapper(data.name))) }, []) } function cloneData (data) { return { name: data.name, versions: data.versions, released: data.released, releaseDate: data.releaseDate } } function mapVersions (data, map) { data.versions = data.versions.map(function (i) { return map[i] || i }) data.released = data.versions.map(function (i) { return map[i] || i }) var fixedDate = { } for (var i in data.releaseDate) { fixedDate[map[i] || i] = data.releaseDate[i] } data.releaseDate = fixedDate return data } function byName (name, context) { name = name.toLowerCase() name = browserslist.aliases[name] || name if (context.mobileToDesktop && browserslist.desktopNames[name]) { var desktop = browserslist.data[browserslist.desktopNames[name]] if (name === 'android') { return normalizeAndroidData(cloneData(browserslist.data[name]), desktop) } else { var cloned = cloneData(desktop) cloned.name = name if (name === 'op_mob') { cloned = mapVersions(cloned, { '10.0-10.1': '10' }) } return cloned } } return browserslist.data[name] } function normalizeAndroidVersions (androidVersions, chromeVersions) { var firstEvergreen = ANDROID_EVERGREEN_FIRST var last = chromeVersions[chromeVersions.length - 1] return androidVersions .filter(function (version) { return /^(?:[2-4]\.|[34]$)/.test(version) }) .concat(chromeVersions.slice(firstEvergreen - last - 1)) } function normalizeAndroidData (android, chrome) { android.released = normalizeAndroidVersions(android.released, chrome.released) android.versions = normalizeAndroidVersions(android.versions, chrome.versions) return android } function checkName (name, context) { var data = byName(name, context) if (!data) throw new BrowserslistError('Unknown browser ' + name) return data } function unknownQuery (query) { return new BrowserslistError( 'Unknown browser query `' + query + '`. ' + 'Maybe you are using old Browserslist or made typo in query.' ) } function filterAndroid (list, versions, context) { if (context.mobileToDesktop) return list var released = browserslist.data.android.released var last = released[released.length - 1] var diff = last - ANDROID_EVERGREEN_FIRST - versions if (diff > 0) { return list.slice(-1) } else { return list.slice(diff - 1) } } /** * Resolves queries into a browser list. * @param {string|string[]} queries Queries to combine. * Either an array of queries or a long string of queries. * @param {object} [context] Optional arguments to * the select function in `queries`. * @returns {string[]} A list of browsers */ function resolve (queries, context) { if (Array.isArray(queries)) { queries = flatten(queries.map(parse)) } else { queries = parse(queries) } return queries.reduce(function (result, query, index) { var selection = query.queryString var isExclude = selection.indexOf('not ') === 0 if (isExclude) { if (index === 0) { throw new BrowserslistError( 'Write any browsers query (for instance, `defaults`) ' + 'before `' + selection + '`') } selection = selection.slice(4) } for (var i = 0; i < QUERIES.length; i++) { var type = QUERIES[i] var match = selection.match(type.regexp) if (match) { var args = [context].concat(match.slice(1)) var array = type.select.apply(browserslist, args).map(function (j) { var parts = j.split(' ') if (parts[1] === '0') { return parts[0] + ' ' + byName(parts[0], context).versions[0] } else { return j } }) switch (query.type) { case QUERY_AND: if (isExclude) { return result.filter(function (j) { return array.indexOf(j) === -1 }) } else { return result.filter(function (j) { return array.indexOf(j) !== -1 }) } case QUERY_OR: default: if (isExclude) { var filter = { } array.forEach(function (j) { filter[j] = true }) return result.filter(function (j) { return !filter[j] }) } return result.concat(array) } } } throw unknownQuery(selection) }, []) } var cache = { } /** * Return array of browsers by selection queries. * * @param {(string|string[])} [queries=browserslist.defaults] Browser queries. * @param {object} [opts] Options. * @param {string} [opts.path="."] Path to processed file. * It will be used to find config files. * @param {string} [opts.env="production"] Processing environment. * It will be used to take right * queries from config file. * @param {string} [opts.config] Path to config file with queries. * @param {object} [opts.stats] Custom browser usage statistics * for "> 1% in my stats" query. * @param {boolean} [opts.ignoreUnknownVersions=false] Do not throw on unknown * version in direct query. * @param {boolean} [opts.dangerousExtend] Disable security checks * for extend query. * @param {boolean} [opts.mobileToDesktop] Alias mobile browsers to the desktop * version when Can I Use doesn't have * data about the specified version. * @returns {string[]} Array with browser names in Can I Use. * * @example * browserslist('IE >= 10, IE 8') //=> ['ie 11', 'ie 10', 'ie 8'] */ function browserslist (queries, opts) { if (typeof opts === 'undefined') opts = { } if (typeof opts.path === 'undefined') { opts.path = path.resolve ? path.resolve('.') : '.' } if (typeof queries === 'undefined' || queries === null) { var config = browserslist.loadConfig(opts) if (config) { queries = config } else { queries = browserslist.defaults } } if (!(typeof queries === 'string' || Array.isArray(queries))) { throw new BrowserslistError( 'Browser queries must be an array or string. Got ' + typeof queries + '.') } var context = { ignoreUnknownVersions: opts.ignoreUnknownVersions, dangerousExtend: opts.dangerousExtend, mobileToDesktop: opts.mobileToDesktop, path: opts.path, env: opts.env } env.oldDataWarning(browserslist.data) var stats = env.getStat(opts, browserslist.data) if (stats) { context.customUsage = { } for (var browser in stats) { fillUsage(context.customUsage, browser, stats[browser]) } } var cacheKey = JSON.stringify([queries, context]) if (cache[cacheKey]) return cache[cacheKey] var result = uniq(resolve(queries, context)).sort(function (name1, name2) { name1 = name1.split(' ') name2 = name2.split(' ') if (name1[0] === name2[0]) { // assumptions on caniuse data // 1) version ranges never overlaps // 2) if version is not a range, it never contains `-` var version1 = name1[1].split('-')[0] var version2 = name2[1].split('-')[0] return compareSemver(version2.split('.'), version1.split('.')) } else { return compare(name1[0], name2[0]) } }) if (!process.env.BROWSERSLIST_DISABLE_CACHE) { cache[cacheKey] = result } return result } function parse (queries) { var qs = [] do { queries = doMatch(queries, qs) } while (queries) return qs } function doMatch (string, qs) { var or = /^(?:,\s*|\s+or\s+)(.*)/i var and = /^\s+and\s+(.*)/i return find(string, function (parsed, n, max) { if (and.test(parsed)) { qs.unshift({ type: QUERY_AND, queryString: parsed.match(and)[1] }) return true } else if (or.test(parsed)) { qs.unshift({ type: QUERY_OR, queryString: parsed.match(or)[1] }) return true } else if (n === max) { qs.unshift({ type: QUERY_OR, queryString: parsed.trim() }) return true } return false }) } function find (string, predicate) { for (var n = 1, max = string.length; n <= max; n++) { var parsed = string.substr(-n, n) if (predicate(parsed, n, max)) { return string.slice(0, -n) } } return '' } function flatten (array) { if (!Array.isArray(array)) return [array] return array.reduce(function (a, b) { return a.concat(flatten(b)) }, []) } // Will be filled by Can I Use data below browserslist.cache = { } browserslist.data = { } browserslist.usage = { global: { }, custom: null } // Default browsers query browserslist.defaults = [ '> 0.5%', 'last 2 versions', 'Firefox ESR', 'not dead' ] // Browser names aliases browserslist.aliases = { fx: 'firefox', ff: 'firefox', ios: 'ios_saf', explorer: 'ie', blackberry: 'bb', explorermobile: 'ie_mob', operamini: 'op_mini', operamobile: 'op_mob', chromeandroid: 'and_chr', firefoxandroid: 'and_ff', ucandroid: 'and_uc', qqandroid: 'and_qq' } // Can I Use only provides a few versions for some browsers (e.g. and_chr). // Fallback to a similar browser for unknown versions browserslist.desktopNames = { and_chr: 'chrome', and_ff: 'firefox', ie_mob: 'ie', op_mob: 'opera', android: 'chrome' // has extra processing logic } // Aliases to work with joined versions like `ios_saf 7.0-7.1` browserslist.versionAliases = { } browserslist.clearCaches = env.clearCaches browserslist.parseConfig = env.parseConfig browserslist.readConfig = env.readConfig browserslist.findConfig = env.findConfig browserslist.loadConfig = env.loadConfig /** * Return browsers market coverage. * * @param {string[]} browsers Browsers names in Can I Use. * @param {string|object} [stats="global"] Which statistics should be used. * Country code or custom statistics. * Pass `"my stats"` to load statistics * from Browserslist files. * * @return {number} Total market coverage for all selected browsers. * * @example * browserslist.coverage(browserslist('> 1% in US'), 'US') //=> 83.1 */ browserslist.coverage = function (browsers, stats) { var data if (typeof stats === 'undefined') { data = browserslist.usage.global } else if (stats === 'my stats') { var opts = {} opts.path = path.resolve ? path.resolve('.') : '.' var customStats = env.getStat(opts) if (!customStats) { throw new BrowserslistError('Custom usage statistics was not provided') } data = {} for (var browser in customStats) { fillUsage(data, browser, customStats[browser]) } } else if (typeof stats === 'string') { if (stats.length > 2) { stats = stats.toLowerCase() } else { stats = stats.toUpperCase() } env.loadCountry(browserslist.usage, stats, browserslist.data) data = browserslist.usage[stats] } else { if ('dataByBrowser' in stats) { stats = stats.dataByBrowser } data = { } for (var name in stats) { for (var version in stats[name]) { data[name + ' ' + version] = stats[name][version] } } } return browsers.reduce(function (all, i) { var usage = data[i] if (usage === undefined) { usage = data[i.replace(/ \S+$/, ' 0')] } return all + (usage || 0) }, 0) } function nodeQuery (context, version) { var nodeReleases = jsReleases.filter(function (i) { return i.name === 'nodejs' }) var matched = nodeReleases.filter(function (i) { return isVersionsMatch(i.version, version) }) if (matched.length === 0) { if (context.ignoreUnknownVersions) { return [] } else { throw new BrowserslistError('Unknown version ' + version + ' of Node.js') } } return ['node ' + matched[matched.length - 1].version] } function sinceQuery (context, year, month, date) { year = parseInt(year) month = parseInt(month || '01') - 1 date = parseInt(date || '01') return filterByYear(Date.UTC(year, month, date, 0, 0, 0), context) } function coverQuery (context, coverage, statMode) { coverage = parseFloat(coverage) var usage = browserslist.usage.global if (statMode) { if (statMode.match(/^my\s+stats$/)) { if (!context.customUsage) { throw new BrowserslistError( 'Custom usage statistics was not provided' ) } usage = context.customUsage } else { var place if (statMode.length === 2) { place = statMode.toUpperCase() } else { place = statMode.toLowerCase() } env.loadCountry(browserslist.usage, place, browserslist.data) usage = browserslist.usage[place] } } var versions = Object.keys(usage).sort(function (a, b) { return usage[b] - usage[a] }) var coveraged = 0 var result = [] var version for (var i = 0; i <= versions.length; i++) { version = versions[i] if (usage[version] === 0) break coveraged += usage[version] result.push(version) if (coveraged >= coverage) break } return result } var QUERIES = [ { regexp: /^last\s+(\d+)\s+major\s+versions?$/i, select: function (context, versions) { return Object.keys(agents).reduce(function (selected, name) { var data = byName(name, context) if (!data) return selected var list = getMajorVersions(data.released, versions) list = list.map(nameMapper(data.name)) if (data.name === 'android') { list = filterAndroid(list, versions, context) } return selected.concat(list) }, []) } }, { regexp: /^last\s+(\d+)\s+versions?$/i, select: function (context, versions) { return Object.keys(agents).reduce(function (selected, name) { var data = byName(name, context) if (!data) return selected var list = data.released.slice(-versions) list = list.map(nameMapper(data.name)) if (data.name === 'android') { list = filterAndroid(list, versions, context) } return selected.concat(list) }, []) } }, { regexp: /^last\s+(\d+)\s+electron\s+major\s+versions?$/i, select: function (context, versions) { var validVersions = getMajorVersions(Object.keys(e2c), versions) return validVersions.map(function (i) { return 'chrome ' + e2c[i] }) } }, { regexp: /^last\s+(\d+)\s+(\w+)\s+major\s+versions?$/i, select: function (context, versions, name) { var data = checkName(name, context) var validVersions = getMajorVersions(data.released, versions) var list = validVersions.map(nameMapper(data.name)) if (data.name === 'android') { list = filterAndroid(list, versions, context) } return list } }, { regexp: /^last\s+(\d+)\s+electron\s+versions?$/i, select: function (context, versions) { return Object.keys(e2c) .slice(-versions) .map(function (i) { return 'chrome ' + e2c[i] }) } }, { regexp: /^last\s+(\d+)\s+(\w+)\s+versions?$/i, select: function (context, versions, name) { var data = checkName(name, context) var list = data.released.slice(-versions).map(nameMapper(data.name)) if (data.name === 'android') { list = filterAndroid(list, versions, context) } return list } }, { regexp: /^unreleased\s+versions$/i, select: function (context) { return Object.keys(agents).reduce(function (selected, name) { var data = byName(name, context) if (!data) return selected var list = data.versions.filter(function (v) { return data.released.indexOf(v) === -1 }) list = list.map(nameMapper(data.name)) return selected.concat(list) }, []) } }, { regexp: /^unreleased\s+electron\s+versions?$/i, select: function () { return [] } }, { regexp: /^unreleased\s+(\w+)\s+versions?$/i, select: function (context, name) { var data = checkName(name, context) return data.versions .filter(function (v) { return data.released.indexOf(v) === -1 }) .map(nameMapper(data.name)) } }, { regexp: /^last\s+(\d*.?\d+)\s+years?$/i, select: function (context, years) { return filterByYear(Date.now() - YEAR * years, context) } }, { regexp: /^since (\d+)$/i, select: sinceQuery }, { regexp: /^since (\d+)-(\d+)$/i, select: sinceQuery }, { regexp: /^since (\d+)-(\d+)-(\d+)$/i, select: sinceQuery }, { regexp: /^(>=?|<=?)\s*(\d+|\d+\.\d+|\.\d+)%$/, select: function (context, sign, popularity) { popularity = parseFloat(popularity) var usage = browserslist.usage.global return Object.keys(usage).reduce(function (result, version) { if (sign === '>') { if (usage[version] > popularity) { result.push(version) } } else if (sign === '<') { if (usage[version] < popularity) { result.push(version) } } else if (sign === '<=') { if (usage[version] <= popularity) { result.push(version) } } else if (usage[version] >= popularity) { result.push(version) } return result }, []) } }, { regexp: /^(>=?|<=?)\s*(\d+|\d+\.\d+|\.\d+)%\s+in\s+my\s+stats$/, select: function (context, sign, popularity) { popularity = parseFloat(popularity) if (!context.customUsage) { throw new BrowserslistError('Custom usage statistics was not provided') } var usage = context.customUsage return Object.keys(usage).reduce(function (result, version) { if (sign === '>') { if (usage[version] > popularity) { result.push(version) } } else if (sign === '<') { if (usage[version] < popularity) { result.push(version) } } else if (sign === '<=') { if (usage[version] <= popularity) { result.push(version) } } else if (usage[version] >= popularity) { result.push(version) } return result }, []) } }, { regexp: /^(>=?|<=?)\s*(\d+|\d+\.\d+|\.\d+)%\s+in\s+(\S+)\s+stats$/, select: function (context, sign, popularity, name) { popularity = parseFloat(popularity) var stats = env.loadStat(context, name, browserslist.data) if (stats) { context.customUsage = {} for (var browser in stats) { fillUsage(context.customUsage, browser, stats[browser]) } } if (!context.customUsage) { throw new BrowserslistError('Custom usage statistics was not provided') } var usage = context.customUsage return Object.keys(usage).reduce(function (result, version) { if (sign === '>') { if (usage[version] > popularity) { result.push(version) } } else if (sign === '<') { if (usage[version] < popularity) { result.push(version) } } else if (sign === '<=') { if (usage[version] <= popularity) { result.push(version) } } else if (usage[version] >= popularity) { result.push(version) } return result }, []) } }, { regexp: /^(>=?|<=?)\s*(\d+|\d+\.\d+|\.\d+)%\s+in\s+((alt-)?\w\w)$/, select: function (context, sign, popularity, place) { popularity = parseFloat(popularity) if (place.length === 2) { place = place.toUpperCase() } else { place = place.toLowerCase() } env.loadCountry(browserslist.usage, place, browserslist.data) var usage = browserslist.usage[place] return Object.keys(usage).reduce(function (result, version) { if (sign === '>') { if (usage[version] > popularity) { result.push(version) } } else if (sign === '<') { if (usage[version] < popularity) { result.push(version) } } else if (sign === '<=') { if (usage[version] <= popularity) { result.push(version) } } else if (usage[version] >= popularity) { result.push(version) } return result }, []) } }, { regexp: /^cover\s+(\d+|\d+\.\d+|\.\d+)%$/, select: coverQuery }, { regexp: /^cover\s+(\d+|\d+\.\d+|\.\d+)%\s+in\s+(my\s+stats|(alt-)?\w\w)$/, select: coverQuery }, { regexp: /^supports\s+([\w-]+)$/, select: function (context, feature) { env.loadFeature(browserslist.cache, feature) var features = browserslist.cache[feature] return Object.keys(features).reduce(function (result, version) { var flags = features[version] if (flags.indexOf('y') >= 0 || flags.indexOf('a') >= 0) { result.push(version) } return result }, []) } }, { regexp: /^electron\s+([\d.]+)\s*-\s*([\d.]+)$/i, select: function (context, from, to) { var fromToUse = normalizeElectron(from) var toToUse = normalizeElectron(to) if (!e2c[fromToUse]) { throw new BrowserslistError('Unknown version ' + from + ' of electron') } if (!e2c[toToUse]) { throw new BrowserslistError('Unknown version ' + to + ' of electron') } from = parseFloat(from) to = parseFloat(to) return Object.keys(e2c) .filter(function (i) { var parsed = parseFloat(i) return parsed >= from && parsed <= to }) .map(function (i) { return 'chrome ' + e2c[i] }) } }, { regexp: /^node\s+([\d.]+)\s*-\s*([\d.]+)$/i, select: function (context, from, to) { var nodeVersions = jsReleases .filter(function (i) { return i.name === 'nodejs' }) .map(function (i) { return i.version }) return nodeVersions .filter(semverFilterLoose('>=', from)) .filter(semverFilterLoose('<=', to)) .map(function (v) { return 'node ' + v }) } }, { regexp: /^(\w+)\s+([\d.]+)\s*-\s*([\d.]+)$/i, select: function (context, name, from, to) { var data = checkName(name, context) from = parseFloat(normalizeVersion(data, from) || from) to = parseFloat(normalizeVersion(data, to) || to) function filter (v) { var parsed = parseFloat(v) return parsed >= from && parsed <= to } return data.released.filter(filter).map(nameMapper(data.name)) } }, { regexp: /^electron\s*(>=?|<=?)\s*([\d.]+)$/i, select: function (context, sign, version) { var versionToUse = normalizeElectron(version) return Object.keys(e2c) .filter(generateFilter(sign, versionToUse)) .map(function (i) { return 'chrome ' + e2c[i] }) } }, { regexp: /^node\s*(>=?|<=?)\s*([\d.]+)$/i, select: function (context, sign, version) { var nodeVersions = jsReleases .filter(function (i) { return i.name === 'nodejs' }) .map(function (i) { return i.version }) return nodeVersions .filter(generateSemverFilter(sign, version)) .map(function (v) { return 'node ' + v }) } }, { regexp: /^(\w+)\s*(>=?|<=?)\s*([\d.]+)$/, select: function (context, name, sign, version) { var data = checkName(name, context) var alias = browserslist.versionAliases[data.name][version] if (alias) { version = alias } return data.released .filter(generateFilter(sign, version)) .map(function (v) { return data.name + ' ' + v }) } }, { regexp: /^(firefox|ff|fx)\s+esr$/i, select: function () { return ['firefox 78'] } }, { regexp: /(operamini|op_mini)\s+all/i, select: function () { return ['op_mini all'] } }, { regexp: /^electron\s+([\d.]+)$/i, select: function (context, version) { var versionToUse = normalizeElectron(version) var chrome = e2c[versionToUse] if (!chrome) { throw new BrowserslistError( 'Unknown version ' + version + ' of electron' ) } return ['chrome ' + chrome] } }, { regexp: /^node\s+(\d+)$/i, select: nodeQuery }, { regexp: /^node\s+(\d+\.\d+)$/i, select: nodeQuery }, { regexp: /^node\s+(\d+\.\d+\.\d+)$/i, select: nodeQuery }, { regexp: /^current\s+node$/i, select: function (context) { return [env.currentNode(resolve, context)] } }, { regexp: /^maintained\s+node\s+versions$/i, select: function (context) { var now = Date.now() var queries = Object.keys(jsEOL) .filter(function (key) { return ( now < Date.parse(jsEOL[key].end) && now > Date.parse(jsEOL[key].start) && isEolReleased(key) ) }) .map(function (key) { return 'node ' + key.slice(1) }) return resolve(queries, context) } }, { regexp: /^phantomjs\s+1.9$/i, select: function () { return ['safari 5'] } }, { regexp: /^phantomjs\s+2.1$/i, select: function () { return ['safari 6'] } }, { regexp: /^(\w+)\s+(tp|[\d.]+)$/i, select: function (context, name, version) { if (/^tp$/i.test(version)) version = 'TP' var data = checkName(name, context) var alias = normalizeVersion(data, version) if (alias) { version = alias } else { if (version.indexOf('.') === -1) { alias = version + '.0' } else { alias = version.replace(/\.0$/, '') } alias = normalizeVersion(data, alias) if (alias) { version = alias } else if (context.ignoreUnknownVersions) { return [] } else { throw new BrowserslistError( 'Unknown version ' + version + ' of ' + name ) } } return [data.name + ' ' + version] } }, { regexp: /^browserslist config$/i, select: function (context) { return browserslist(undefined, context) } }, { regexp: /^extends (.+)$/i, select: function (context, name) { return resolve(env.loadQueries(context, name), context) } }, { regexp: /^defaults$/i, select: function (context) { return resolve(browserslist.defaults, context) } }, { regexp: /^dead$/i, select: function (context) { var dead = [ 'ie <= 10', 'ie_mob <= 11', 'bb <= 10', 'op_mob <= 12.1', 'samsung 4' ] return resolve(dead, context) } }, { regexp: /^(\w+)$/i, select: function (context, name) { if (byName(name, context)) { throw new BrowserslistError( 'Specify versions in Browserslist query for browser ' + name ) } else { throw unknownQuery(name) } } } ]; // Get and convert Can I Use data (function () { for (var name in agents) { var browser = agents[name] browserslist.data[name] = { name: name, versions: normalize(agents[name].versions), released: normalize(agents[name].versions.slice(0, -3)), releaseDate: agents[name].release_date } fillUsage(browserslist.usage.global, name, browser.usage_global) browserslist.versionAliases[name] = { } for (var i = 0; i < browser.versions.length; i++) { var full = browser.versions[i] if (!full) continue if (full.indexOf('-') !== -1) { var interval = full.split('-') for (var j = 0; j < interval.length; j++) { browserslist.versionAliases[name][interval[j]] = full } } } } browserslist.versionAliases.op_mob['59'] = '58' }()) module.exports = browserslist