FM / browserslist

/opt/canhelp/node_modules/browserslist

Name	Size	Mode	Actions
browser.js	1117	0644	edit dl rm
cli.js	4347	0755	edit dl rm
error.d.ts	155	0644	edit dl rm
error.js	299	0644	edit dl rm
index.d.ts	4961	0644	edit dl rm
index.js	38169	0644	edit dl rm
LICENSE	1118	0644	edit dl rm
node.js	13481	0644	edit dl rm
package.json	1112	0644	edit dl rm
parse.js	1789	0644	edit dl rm
README.md	2427	0644	edit dl rm

Edit: /opt/canhelp/node_modules/browserslist/parse.js (1789B)

var AND_REGEXP = /^\s+and\s+(.*)/i
var OR_REGEXP = /^(?:,\s*|\s+or\s+)(.*)/i

function flatten(array) {
  if (!Array.isArray(array)) return [array]
  return array.reduce(function (a, b) {
    return a.concat(flatten(b))
  }, [])
}

function find(string, predicate) {
  for (var max = string.length, n = 1; n <= max; n++) {
    var parsed = string.substr(-n, n)
    if (predicate(parsed, n, max)) {
      return string.slice(0, -n)
    }
  }
  return ''
}

function matchQuery(all, query) {
  var node = { query: query }
  if (query.indexOf('not ') === 0) {
    node.not = true
    query = query.slice(4)
  }

for (var name in all) {
    var type = all[name]
    var match = query.match(type.regexp)
    if (match) {
      node.type = name
      for (var i = 0; i < type.matches.length; i++) {
        node[type.matches[i]] = match[i + 1]
      }
      return node
    }
  }

node.type = 'unknown'
  return node
}

function matchBlock(all, string, qs) {
  var node
  return find(string, function (parsed, n, max) {
    if (AND_REGEXP.test(parsed)) {
      node = matchQuery(all, parsed.match(AND_REGEXP)[1])
      node.compose = 'and'
      qs.unshift(node)
      return true
    } else if (OR_REGEXP.test(parsed)) {
      node = matchQuery(all, parsed.match(OR_REGEXP)[1])
      node.compose = 'or'
      qs.unshift(node)
      return true
    } else if (n === max) {
      node = matchQuery(all, parsed.trim())
      node.compose = 'or'
      qs.unshift(node)
      return true
    }
    return false
  })
}

module.exports = function parse(all, queries) {
  if (!Array.isArray(queries)) queries = [queries]
  return flatten(
    queries.map(function (block) {
      var qs = []
      do {
        block = matchBlock(all, block, qs)
      } while (block)
      return qs
    })
  )
}

cmd: