notes/node_modules/stylelint/lib/rules/mediaQueryListCommaWhitespaceChecker.js

"use strict"

const atRuleParamIndex = require("../utils/atRuleParamIndex")
const report = require("../utils/report")
const styleSearch = require("style-search")

module.exports = function (opts) {
  opts.root.walkAtRules(/^media$/i, atRule => {
    const params = atRule.params
    styleSearch({ source: params, target: "," }, match => {
      checkComma(params, match.startIndex, atRule)
    })
  })

  function checkComma(source, index, node) {
    opts.locationChecker({ source, index, err: m => report({
      message: m,
      node,
      index: index + atRuleParamIndex(node),
      result: opts.result,
      ruleName: opts.checkedRuleName,
    }),
    })
  }
}