849 lines
25 KiB
JavaScript
849 lines
25 KiB
JavaScript
function _typeof(obj) {
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if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
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_typeof = function (obj) {
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return typeof obj;
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};
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} else {
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_typeof = function (obj) {
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return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
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};
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}
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return _typeof(obj);
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}
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|
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function _classCallCheck(instance, Constructor) {
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if (!(instance instanceof Constructor)) {
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throw new TypeError("Cannot call a class as a function");
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}
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}
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|
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function _inherits(subClass, superClass) {
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if (typeof superClass !== "function" && superClass !== null) {
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throw new TypeError("Super expression must either be null or a function");
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}
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subClass.prototype = Object.create(superClass && superClass.prototype, {
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constructor: {
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value: subClass,
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writable: true,
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configurable: true
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}
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});
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if (superClass) _setPrototypeOf(subClass, superClass);
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}
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function _getPrototypeOf(o) {
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_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
|
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return o.__proto__ || Object.getPrototypeOf(o);
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};
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return _getPrototypeOf(o);
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}
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function _setPrototypeOf(o, p) {
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_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
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o.__proto__ = p;
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return o;
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};
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return _setPrototypeOf(o, p);
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}
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|
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function isNativeReflectConstruct() {
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if (typeof Reflect === "undefined" || !Reflect.construct) return false;
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if (Reflect.construct.sham) return false;
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if (typeof Proxy === "function") return true;
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try {
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Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));
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return true;
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} catch (e) {
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return false;
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}
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}
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function _construct(Parent, args, Class) {
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if (isNativeReflectConstruct()) {
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_construct = Reflect.construct;
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} else {
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_construct = function _construct(Parent, args, Class) {
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var a = [null];
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a.push.apply(a, args);
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var Constructor = Function.bind.apply(Parent, a);
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var instance = new Constructor();
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if (Class) _setPrototypeOf(instance, Class.prototype);
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return instance;
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};
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}
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return _construct.apply(null, arguments);
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}
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function _isNativeFunction(fn) {
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return Function.toString.call(fn).indexOf("[native code]") !== -1;
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}
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function _wrapNativeSuper(Class) {
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var _cache = typeof Map === "function" ? new Map() : undefined;
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_wrapNativeSuper = function _wrapNativeSuper(Class) {
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if (Class === null || !_isNativeFunction(Class)) return Class;
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if (typeof Class !== "function") {
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throw new TypeError("Super expression must either be null or a function");
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}
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if (typeof _cache !== "undefined") {
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if (_cache.has(Class)) return _cache.get(Class);
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_cache.set(Class, Wrapper);
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}
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function Wrapper() {
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return _construct(Class, arguments, _getPrototypeOf(this).constructor);
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}
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Wrapper.prototype = Object.create(Class.prototype, {
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constructor: {
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value: Wrapper,
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enumerable: false,
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writable: true,
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configurable: true
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}
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});
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return _setPrototypeOf(Wrapper, Class);
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};
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|
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return _wrapNativeSuper(Class);
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}
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function _assertThisInitialized(self) {
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if (self === void 0) {
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throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
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}
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return self;
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}
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function _possibleConstructorReturn(self, call) {
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if (call && (typeof call === "object" || typeof call === "function")) {
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return call;
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}
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return _assertThisInitialized(self);
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}
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/* eslint-disable no-eval */
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var globalEval = eval; // eslint-disable-next-line import/no-commonjs
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var supportsNodeVM = typeof module !== 'undefined' && Boolean(module.exports) && !(typeof navigator !== 'undefined' && navigator.product === 'ReactNative');
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var allowedResultTypes = ['value', 'path', 'pointer', 'parent', 'parentProperty', 'all'];
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var hasOwnProp = Object.prototype.hasOwnProperty;
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/**
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* Copy items out of one array into another.
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* @param {Array} source Array with items to copy
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* @param {Array} target Array to which to copy
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* @param {Function} conditionCb Callback passed the current item; will move
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* item if evaluates to `true`
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* @returns {undefined}
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*/
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var moveToAnotherArray = function moveToAnotherArray(source, target, conditionCb) {
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var il = source.length;
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for (var i = 0; i < il; i++) {
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var item = source[i];
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if (conditionCb(item)) {
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target.push(source.splice(i--, 1)[0]);
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}
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}
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};
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var vm = supportsNodeVM ? require('vm') : {
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/**
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* @param {string} expr Expression to evaluate
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* @param {Object} context Object whose items will be added to evaluation
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* @returns {*} Result of evaluated code
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*/
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runInNewContext: function runInNewContext(expr, context) {
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var keys = Object.keys(context);
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var funcs = [];
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moveToAnotherArray(keys, funcs, function (key) {
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return typeof context[key] === 'function';
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});
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var code = funcs.reduce(function (s, func) {
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var fString = context[func].toString();
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if (!/function/.exec(fString)) {
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fString = 'function ' + fString;
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}
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return 'var ' + func + '=' + fString + ';' + s;
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}, '') + keys.reduce(function (s, vr) {
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return 'var ' + vr + '=' + JSON.stringify(context[vr]).replace( // http://www.thespanner.co.uk/2011/07/25/the-json-specification-is-now-wrong/
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/\u2028|\u2029/g, function (m) {
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return "\\u202" + (m === "\u2028" ? '8' : '9');
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}) + ';' + s;
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}, expr);
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return globalEval(code);
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}
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};
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/**
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* Copies array and then pushes item into it.
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* @param {Array} arr Array to copy and into which to push
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* @param {*} item Array item to add (to end)
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* @returns {Array} Copy of the original array
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*/
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function push(arr, item) {
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arr = arr.slice();
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arr.push(item);
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return arr;
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}
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/**
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* Copies array and then unshifts item into it.
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* @param {*} item Array item to add (to beginning)
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* @param {Array} arr Array to copy and into which to unshift
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* @returns {Array} Copy of the original array
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*/
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function unshift(item, arr) {
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arr = arr.slice();
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arr.unshift(item);
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return arr;
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}
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/**
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* Caught when JSONPath is used without `new` but rethrown if with `new`
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* @extends Error
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*/
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var NewError =
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/*#__PURE__*/
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function (_Error) {
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_inherits(NewError, _Error);
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/**
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* @param {*} value The evaluated scalar value
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*/
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function NewError(value) {
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var _this;
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_classCallCheck(this, NewError);
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_this = _possibleConstructorReturn(this, _getPrototypeOf(NewError).call(this, 'JSONPath should not be called with "new" (it prevents return of (unwrapped) scalar values)'));
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_this.avoidNew = true;
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_this.value = value;
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_this.name = 'NewError';
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return _this;
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}
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return NewError;
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}(_wrapNativeSuper(Error));
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/**
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* @param {Object} [opts] If present, must be an object
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* @param {string} expr JSON path to evaluate
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* @param {JSON} obj JSON object to evaluate against
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* @param {Function} callback Passed 3 arguments: 1) desired payload per `resultType`,
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* 2) `"value"|"property"`, 3) Full returned object with all payloads
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* @param {Function} otherTypeCallback If `@other()` is at the end of one's query, this
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* will be invoked with the value of the item, its path, its parent, and its parent's
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* property name, and it should return a boolean indicating whether the supplied value
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* belongs to the "other" type or not (or it may handle transformations and return `false`).
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* @returns {JSONPath}
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* @class
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*/
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function JSONPath(opts, expr, obj, callback, otherTypeCallback) {
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// eslint-disable-next-line no-restricted-syntax
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if (!(this instanceof JSONPath)) {
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try {
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return new JSONPath(opts, expr, obj, callback, otherTypeCallback);
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} catch (e) {
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if (!e.avoidNew) {
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throw e;
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}
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return e.value;
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}
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}
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if (typeof opts === 'string') {
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otherTypeCallback = callback;
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callback = obj;
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obj = expr;
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expr = opts;
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opts = {};
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}
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opts = opts || {};
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var objArgs = hasOwnProp.call(opts, 'json') && hasOwnProp.call(opts, 'path');
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this.json = opts.json || obj;
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this.path = opts.path || expr;
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this.resultType = opts.resultType && opts.resultType.toLowerCase() || 'value';
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this.flatten = opts.flatten || false;
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this.wrap = hasOwnProp.call(opts, 'wrap') ? opts.wrap : true;
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this.sandbox = opts.sandbox || {};
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this.preventEval = opts.preventEval || false;
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this.parent = opts.parent || null;
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this.parentProperty = opts.parentProperty || null;
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this.callback = opts.callback || callback || null;
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this.otherTypeCallback = opts.otherTypeCallback || otherTypeCallback || function () {
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throw new Error('You must supply an otherTypeCallback callback option with the @other() operator.');
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};
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if (opts.autostart !== false) {
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var ret = this.evaluate({
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path: objArgs ? opts.path : expr,
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json: objArgs ? opts.json : obj
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});
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if (!ret || _typeof(ret) !== 'object') {
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throw new NewError(ret);
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}
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return ret;
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}
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} // PUBLIC METHODS
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JSONPath.prototype.evaluate = function (expr, json, callback, otherTypeCallback) {
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var that = this;
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var currParent = this.parent,
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currParentProperty = this.parentProperty;
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var flatten = this.flatten,
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wrap = this.wrap;
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this.currResultType = this.resultType;
|
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this.currPreventEval = this.preventEval;
|
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this.currSandbox = this.sandbox;
|
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callback = callback || this.callback;
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this.currOtherTypeCallback = otherTypeCallback || this.otherTypeCallback;
|
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json = json || this.json;
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expr = expr || this.path;
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if (expr && _typeof(expr) === 'object') {
|
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if (!expr.path) {
|
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throw new Error('You must supply a "path" property when providing an object argument to JSONPath.evaluate().');
|
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}
|
|
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json = hasOwnProp.call(expr, 'json') ? expr.json : json;
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flatten = hasOwnProp.call(expr, 'flatten') ? expr.flatten : flatten;
|
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this.currResultType = hasOwnProp.call(expr, 'resultType') ? expr.resultType : this.currResultType;
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this.currSandbox = hasOwnProp.call(expr, 'sandbox') ? expr.sandbox : this.currSandbox;
|
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wrap = hasOwnProp.call(expr, 'wrap') ? expr.wrap : wrap;
|
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this.currPreventEval = hasOwnProp.call(expr, 'preventEval') ? expr.preventEval : this.currPreventEval;
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callback = hasOwnProp.call(expr, 'callback') ? expr.callback : callback;
|
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this.currOtherTypeCallback = hasOwnProp.call(expr, 'otherTypeCallback') ? expr.otherTypeCallback : this.currOtherTypeCallback;
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currParent = hasOwnProp.call(expr, 'parent') ? expr.parent : currParent;
|
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currParentProperty = hasOwnProp.call(expr, 'parentProperty') ? expr.parentProperty : currParentProperty;
|
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expr = expr.path;
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}
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currParent = currParent || null;
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currParentProperty = currParentProperty || null;
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|
|
|
if (Array.isArray(expr)) {
|
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expr = JSONPath.toPathString(expr);
|
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}
|
|
|
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if (!expr || !json || !allowedResultTypes.includes(this.currResultType)) {
|
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return undefined;
|
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}
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|
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this._obj = json;
|
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var exprList = JSONPath.toPathArray(expr);
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|
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if (exprList[0] === '$' && exprList.length > 1) {
|
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exprList.shift();
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}
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|
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this._hasParentSelector = null;
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|
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var result = this._trace(exprList, json, ['$'], currParent, currParentProperty, callback).filter(function (ea) {
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return ea && !ea.isParentSelector;
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});
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|
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if (!result.length) {
|
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return wrap ? [] : undefined;
|
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}
|
|
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|
if (result.length === 1 && !wrap && !Array.isArray(result[0].value)) {
|
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return this._getPreferredOutput(result[0]);
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|
}
|
|
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return result.reduce(function (rslt, ea) {
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var valOrPath = that._getPreferredOutput(ea);
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if (flatten && Array.isArray(valOrPath)) {
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rslt = rslt.concat(valOrPath);
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} else {
|
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rslt.push(valOrPath);
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}
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|
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return rslt;
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}, []);
|
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}; // PRIVATE METHODS
|
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|
|
|
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JSONPath.prototype._getPreferredOutput = function (ea) {
|
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var resultType = this.currResultType;
|
|
|
|
switch (resultType) {
|
|
default:
|
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throw new TypeError('Unknown result type');
|
|
|
|
case 'all':
|
|
ea.pointer = JSONPath.toPointer(ea.path);
|
|
ea.path = typeof ea.path === 'string' ? ea.path : JSONPath.toPathString(ea.path);
|
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return ea;
|
|
|
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case 'value':
|
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case 'parent':
|
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case 'parentProperty':
|
|
return ea[resultType];
|
|
|
|
case 'path':
|
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return JSONPath.toPathString(ea[resultType]);
|
|
|
|
case 'pointer':
|
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return JSONPath.toPointer(ea.path);
|
|
}
|
|
};
|
|
|
|
JSONPath.prototype._handleCallback = function (fullRetObj, callback, type) {
|
|
if (callback) {
|
|
var preferredOutput = this._getPreferredOutput(fullRetObj);
|
|
|
|
fullRetObj.path = typeof fullRetObj.path === 'string' ? fullRetObj.path : JSONPath.toPathString(fullRetObj.path); // eslint-disable-next-line callback-return
|
|
|
|
callback(preferredOutput, type, fullRetObj);
|
|
}
|
|
};
|
|
|
|
JSONPath.prototype._trace = function (expr, val, path, parent, parentPropName, callback, literalPriority) {
|
|
// No expr to follow? return path and value as the result of this trace branch
|
|
var retObj;
|
|
var that = this;
|
|
|
|
if (!expr.length) {
|
|
retObj = {
|
|
path: path,
|
|
value: val,
|
|
parent: parent,
|
|
parentProperty: parentPropName
|
|
};
|
|
|
|
this._handleCallback(retObj, callback, 'value');
|
|
|
|
return retObj;
|
|
}
|
|
|
|
var loc = expr[0],
|
|
x = expr.slice(1); // We need to gather the return value of recursive trace calls in order to
|
|
// do the parent sel computation.
|
|
|
|
var ret = [];
|
|
|
|
function addRet(elems) {
|
|
if (Array.isArray(elems)) {
|
|
// This was causing excessive stack size in Node (with or without Babel) against our performance test: `ret.push(...elems);`
|
|
elems.forEach(function (t) {
|
|
ret.push(t);
|
|
});
|
|
} else {
|
|
ret.push(elems);
|
|
}
|
|
}
|
|
|
|
if ((typeof loc !== 'string' || literalPriority) && val && hasOwnProp.call(val, loc)) {
|
|
// simple case--directly follow property
|
|
addRet(this._trace(x, val[loc], push(path, loc), val, loc, callback));
|
|
} else if (loc === '*') {
|
|
// all child properties
|
|
// eslint-disable-next-line no-shadow
|
|
this._walk(loc, x, val, path, parent, parentPropName, callback, function (m, l, x, v, p, par, pr, cb) {
|
|
addRet(that._trace(unshift(m, x), v, p, par, pr, cb, true));
|
|
});
|
|
} else if (loc === '..') {
|
|
// all descendent parent properties
|
|
addRet(this._trace(x, val, path, parent, parentPropName, callback)); // Check remaining expression with val's immediate children
|
|
// eslint-disable-next-line no-shadow
|
|
|
|
this._walk(loc, x, val, path, parent, parentPropName, callback, function (m, l, x, v, p, par, pr, cb) {
|
|
// We don't join m and x here because we only want parents, not scalar values
|
|
if (_typeof(v[m]) === 'object') {
|
|
// Keep going with recursive descent on val's object children
|
|
addRet(that._trace(unshift(l, x), v[m], push(p, m), v, m, cb));
|
|
}
|
|
}); // The parent sel computation is handled in the frame above using the
|
|
// ancestor object of val
|
|
|
|
} else if (loc === '^') {
|
|
// This is not a final endpoint, so we do not invoke the callback here
|
|
this._hasParentSelector = true;
|
|
return path.length ? {
|
|
path: path.slice(0, -1),
|
|
expr: x,
|
|
isParentSelector: true
|
|
} : [];
|
|
} else if (loc === '~') {
|
|
// property name
|
|
retObj = {
|
|
path: push(path, loc),
|
|
value: parentPropName,
|
|
parent: parent,
|
|
parentProperty: null
|
|
};
|
|
|
|
this._handleCallback(retObj, callback, 'property');
|
|
|
|
return retObj;
|
|
} else if (loc === '$') {
|
|
// root only
|
|
addRet(this._trace(x, val, path, null, null, callback));
|
|
} else if (/^(-?\d*):(-?\d*):?(\d*)$/.test(loc)) {
|
|
// [start:end:step] Python slice syntax
|
|
addRet(this._slice(loc, x, val, path, parent, parentPropName, callback));
|
|
} else if (loc.indexOf('?(') === 0) {
|
|
// [?(expr)] (filtering)
|
|
if (this.currPreventEval) {
|
|
throw new Error('Eval [?(expr)] prevented in JSONPath expression.');
|
|
} // eslint-disable-next-line no-shadow
|
|
|
|
|
|
this._walk(loc, x, val, path, parent, parentPropName, callback, function (m, l, x, v, p, par, pr, cb) {
|
|
if (that._eval(l.replace(/^\?\((.*?)\)$/, '$1'), v[m], m, p, par, pr)) {
|
|
addRet(that._trace(unshift(m, x), v, p, par, pr, cb));
|
|
}
|
|
});
|
|
} else if (loc[0] === '(') {
|
|
// [(expr)] (dynamic property/index)
|
|
if (this.currPreventEval) {
|
|
throw new Error('Eval [(expr)] prevented in JSONPath expression.');
|
|
} // As this will resolve to a property name (but we don't know it yet), property and parent information is relative to the parent of the property to which this expression will resolve
|
|
|
|
|
|
addRet(this._trace(unshift(this._eval(loc, val, path[path.length - 1], path.slice(0, -1), parent, parentPropName), x), val, path, parent, parentPropName, callback));
|
|
} else if (loc[0] === '@') {
|
|
// value type: @boolean(), etc.
|
|
var addType = false;
|
|
var valueType = loc.slice(1, -2);
|
|
|
|
switch (valueType) {
|
|
default:
|
|
throw new TypeError('Unknown value type ' + valueType);
|
|
|
|
case 'scalar':
|
|
if (!val || !['object', 'function'].includes(_typeof(val))) {
|
|
addType = true;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'boolean':
|
|
case 'string':
|
|
case 'undefined':
|
|
case 'function':
|
|
if (_typeof(val) === valueType) {
|
|
// eslint-disable-line valid-typeof
|
|
addType = true;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'number':
|
|
if (_typeof(val) === valueType && isFinite(val)) {
|
|
// eslint-disable-line valid-typeof
|
|
addType = true;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'nonFinite':
|
|
if (typeof val === 'number' && !isFinite(val)) {
|
|
addType = true;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'object':
|
|
if (val && _typeof(val) === valueType) {
|
|
// eslint-disable-line valid-typeof
|
|
addType = true;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'array':
|
|
if (Array.isArray(val)) {
|
|
addType = true;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'other':
|
|
addType = this.currOtherTypeCallback(val, path, parent, parentPropName);
|
|
break;
|
|
|
|
case 'integer':
|
|
if (val === Number(val) && isFinite(val) && !(val % 1)) {
|
|
addType = true;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'null':
|
|
if (val === null) {
|
|
addType = true;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (addType) {
|
|
retObj = {
|
|
path: path,
|
|
value: val,
|
|
parent: parent,
|
|
parentProperty: parentPropName
|
|
};
|
|
|
|
this._handleCallback(retObj, callback, 'value');
|
|
|
|
return retObj;
|
|
}
|
|
} else if (loc[0] === '`' && val && hasOwnProp.call(val, loc.slice(1))) {
|
|
// `-escaped property
|
|
var locProp = loc.slice(1);
|
|
addRet(this._trace(x, val[locProp], push(path, locProp), val, locProp, callback, true));
|
|
} else if (loc.includes(',')) {
|
|
// [name1,name2,...]
|
|
var parts = loc.split(',');
|
|
var _iteratorNormalCompletion = true;
|
|
var _didIteratorError = false;
|
|
var _iteratorError = undefined;
|
|
|
|
try {
|
|
for (var _iterator = parts[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
|
|
var part = _step.value;
|
|
addRet(this._trace(unshift(part, x), val, path, parent, parentPropName, callback));
|
|
}
|
|
} catch (err) {
|
|
_didIteratorError = true;
|
|
_iteratorError = err;
|
|
} finally {
|
|
try {
|
|
if (!_iteratorNormalCompletion && _iterator["return"] != null) {
|
|
_iterator["return"]();
|
|
}
|
|
} finally {
|
|
if (_didIteratorError) {
|
|
throw _iteratorError;
|
|
}
|
|
}
|
|
}
|
|
} else if (!literalPriority && val && hasOwnProp.call(val, loc)) {
|
|
// simple case--directly follow property
|
|
addRet(this._trace(x, val[loc], push(path, loc), val, loc, callback, true));
|
|
} // We check the resulting values for parent selections. For parent
|
|
// selections we discard the value object and continue the trace with the
|
|
// current val object
|
|
|
|
|
|
if (this._hasParentSelector) {
|
|
// eslint-disable-next-line unicorn/no-for-loop
|
|
for (var t = 0; t < ret.length; t++) {
|
|
var rett = ret[t];
|
|
|
|
if (rett.isParentSelector) {
|
|
var tmp = that._trace(rett.expr, val, rett.path, parent, parentPropName, callback);
|
|
|
|
if (Array.isArray(tmp)) {
|
|
ret[t] = tmp[0];
|
|
var tl = tmp.length;
|
|
|
|
for (var tt = 1; tt < tl; tt++) {
|
|
t++;
|
|
ret.splice(t, 0, tmp[tt]);
|
|
}
|
|
} else {
|
|
ret[t] = tmp;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
};
|
|
|
|
JSONPath.prototype._walk = function (loc, expr, val, path, parent, parentPropName, callback, f) {
|
|
if (Array.isArray(val)) {
|
|
var n = val.length;
|
|
|
|
for (var i = 0; i < n; i++) {
|
|
f(i, loc, expr, val, path, parent, parentPropName, callback);
|
|
}
|
|
} else if (_typeof(val) === 'object') {
|
|
for (var m in val) {
|
|
if (hasOwnProp.call(val, m)) {
|
|
f(m, loc, expr, val, path, parent, parentPropName, callback);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
JSONPath.prototype._slice = function (loc, expr, val, path, parent, parentPropName, callback) {
|
|
if (!Array.isArray(val)) {
|
|
return undefined;
|
|
}
|
|
|
|
var len = val.length,
|
|
parts = loc.split(':'),
|
|
step = parts[2] && parseInt(parts[2]) || 1;
|
|
var start = parts[0] && parseInt(parts[0]) || 0,
|
|
end = parts[1] && parseInt(parts[1]) || len;
|
|
start = start < 0 ? Math.max(0, start + len) : Math.min(len, start);
|
|
end = end < 0 ? Math.max(0, end + len) : Math.min(len, end);
|
|
var ret = [];
|
|
|
|
for (var i = start; i < end; i += step) {
|
|
var tmp = this._trace(unshift(i, expr), val, path, parent, parentPropName, callback);
|
|
|
|
if (Array.isArray(tmp)) {
|
|
// This was causing excessive stack size in Node (with or without Babel) against our performance test: `ret.push(...tmp);`
|
|
tmp.forEach(function (t) {
|
|
ret.push(t);
|
|
});
|
|
} else {
|
|
ret.push(tmp);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
};
|
|
|
|
JSONPath.prototype._eval = function (code, _v, _vname, path, parent, parentPropName) {
|
|
if (!this._obj || !_v) {
|
|
return false;
|
|
}
|
|
|
|
if (code.includes('@parentProperty')) {
|
|
this.currSandbox._$_parentProperty = parentPropName;
|
|
code = code.replace(/@parentProperty/g, '_$_parentProperty');
|
|
}
|
|
|
|
if (code.includes('@parent')) {
|
|
this.currSandbox._$_parent = parent;
|
|
code = code.replace(/@parent/g, '_$_parent');
|
|
}
|
|
|
|
if (code.includes('@property')) {
|
|
this.currSandbox._$_property = _vname;
|
|
code = code.replace(/@property/g, '_$_property');
|
|
}
|
|
|
|
if (code.includes('@path')) {
|
|
this.currSandbox._$_path = JSONPath.toPathString(path.concat([_vname]));
|
|
code = code.replace(/@path/g, '_$_path');
|
|
}
|
|
|
|
if (code.match(/@([.\s)[])/)) {
|
|
this.currSandbox._$_v = _v;
|
|
code = code.replace(/@([.\s)[])/g, '_$_v$1');
|
|
}
|
|
|
|
try {
|
|
return vm.runInNewContext(code, this.currSandbox);
|
|
} catch (e) {
|
|
// eslint-disable-next-line no-console
|
|
console.log(e);
|
|
throw new Error('jsonPath: ' + e.message + ': ' + code);
|
|
}
|
|
}; // PUBLIC CLASS PROPERTIES AND METHODS
|
|
// Could store the cache object itself
|
|
|
|
|
|
JSONPath.cache = {};
|
|
/**
|
|
* @param {string[]} pathArr Array to convert
|
|
* @returns {string} The path string
|
|
*/
|
|
|
|
JSONPath.toPathString = function (pathArr) {
|
|
var x = pathArr,
|
|
n = x.length;
|
|
var p = '$';
|
|
|
|
for (var i = 1; i < n; i++) {
|
|
if (!/^(~|\^|@.*?\(\))$/.test(x[i])) {
|
|
p += /^[0-9*]+$/.test(x[i]) ? '[' + x[i] + ']' : "['" + x[i] + "']";
|
|
}
|
|
}
|
|
|
|
return p;
|
|
};
|
|
/**
|
|
* @param {string} pointer JSON Path
|
|
* @returns {string} JSON Pointer
|
|
*/
|
|
|
|
|
|
JSONPath.toPointer = function (pointer) {
|
|
var x = pointer,
|
|
n = x.length;
|
|
var p = '';
|
|
|
|
for (var i = 1; i < n; i++) {
|
|
if (!/^(~|\^|@.*?\(\))$/.test(x[i])) {
|
|
p += '/' + x[i].toString().replace(/~/g, '~0').replace(/\//g, '~1');
|
|
}
|
|
}
|
|
|
|
return p;
|
|
};
|
|
/**
|
|
* @param {string} expr Expression to convert
|
|
* @returns {string[]}
|
|
*/
|
|
|
|
|
|
JSONPath.toPathArray = function (expr) {
|
|
var cache = JSONPath.cache;
|
|
|
|
if (cache[expr]) {
|
|
return cache[expr].concat();
|
|
}
|
|
|
|
var subx = [];
|
|
var normalized = expr // Properties
|
|
.replace(/@(?:null|boolean|number|string|integer|undefined|nonFinite|scalar|array|object|function|other)\(\)/g, ';$&;') // Parenthetical evaluations (filtering and otherwise), directly
|
|
// within brackets or single quotes
|
|
.replace(/[['](\??\(.*?\))[\]']/g, function ($0, $1) {
|
|
return '[#' + (subx.push($1) - 1) + ']';
|
|
}) // Escape periods and tildes within properties
|
|
.replace(/\['([^'\]]*)'\]/g, function ($0, prop) {
|
|
return "['" + prop.replace(/\./g, '%@%').replace(/~/g, '%%@@%%') + "']";
|
|
}) // Properties operator
|
|
.replace(/~/g, ';~;') // Split by property boundaries
|
|
.replace(/'?\.'?(?![^[]*\])|\['?/g, ';') // Reinsert periods within properties
|
|
.replace(/%@%/g, '.') // Reinsert tildes within properties
|
|
.replace(/%%@@%%/g, '~') // Parent
|
|
.replace(/(?:;)?(\^+)(?:;)?/g, function ($0, ups) {
|
|
return ';' + ups.split('').join(';') + ';';
|
|
}) // Descendents
|
|
.replace(/;;;|;;/g, ';..;') // Remove trailing
|
|
.replace(/;$|'?\]|'$/g, '');
|
|
var exprList = normalized.split(';').map(function (exp) {
|
|
var match = exp.match(/#(\d+)/);
|
|
return !match || !match[1] ? exp : subx[match[1]];
|
|
});
|
|
cache[expr] = exprList;
|
|
return cache[expr];
|
|
};
|
|
|
|
export { JSONPath };
|