stylelint-bundle-worker.js
function isInvalidChar(str) {
  var ch = toStr(str);
  return ch === '\\'
    || ch === '['
    || ch === ']'
    || ch === '^'
    || ch === '('
    || ch === ')'
    || ch === '`';
}
function isInvalidChar(str) {
  var ch = toStr(str);
  return ch === '\\'
    || ch === '['
    || ch === ']'
    || ch === '^'
    || ch === '('
    || ch === ')'
    || ch === '`';
}
function isInvalidChar ( str ) { var ch = toStr ( str ) ; return ch === '\\' || ch === '[' || ch === ']' || ch === '^' || ch === '(' || ch === ')' || ch === '`' ; }
Check for invalid characters
Check for invalid characters