Function itself

console/static/src/libs/ace-builds/src/worker-javascript.js:7821–8081

(s, o, g)

    return str.replace(/[-\/\\^$*+?.()|[\]{}]/g, "\\$&");
  };
  var itself = function(s, o, g) {
    var i, k, x, reIgnoreStr, reIgnore;
    var optionKeys;
    var newOptionObj = {};
    var newIgnoredObj = {};

    o = _.clone(o);
    state.reset();

    if (o && o.scope) {
      JSHINT.scope = o.scope;
    } else {
      JSHINT.errors = [];
      JSHINT.undefs = [];
      JSHINT.internals = [];
      JSHINT.blacklist = {};
      JSHINT.scope = "(main)";
    }

    predefined = Object.create(null);
    combine(predefined, vars.ecmaIdentifiers[3]);
    combine(predefined, vars.reservedVars);

    combine(predefined, g || {});

    declared = Object.create(null);
    var exported = Object.create(null); // Variables that live outside the current file

    function each(obj, cb) {
      if (!obj)
        return;

      if (!Array.isArray(obj) && typeof obj === "object")
        obj = Object.keys(obj);

      obj.forEach(cb);
    }

    if (o) {
      each(o.predef || null, function(item) {
        var slice, prop;

        if (item[0] === "-") {
          slice = item.slice(1);
          JSHINT.blacklist[slice] = slice;
          delete predefined[slice];
        } else {
          prop = Object.getOwnPropertyDescriptor(o.predef, item);
          predefined[item] = prop ? prop.value : false;
        }
      });

      each(o.exported || null, function(item) {
        exported[item] = true;
      });

      delete o.predef;
      delete o.exported;