cheerio.js
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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Cheerio = void 0;
var tslib_1 = require("tslib");
var parse_1 = tslib_1.__importDefault(require("./parse"));
var options_1 = tslib_1.__importDefault(require("./options"));
var utils_1 = require("./utils");
var Attributes = tslib_1.__importStar(require("./api/attributes"));
var Traversing = tslib_1.__importStar(require("./api/traversing"));
var Manipulation = tslib_1.__importStar(require("./api/manipulation"));
var Css = tslib_1.__importStar(require("./api/css"));
var Forms = tslib_1.__importStar(require("./api/forms"));
var Cheerio = /** @class */ (function () {
/**
* Instance of cheerio. Methods are specified in the modules. Usage of this
* constructor is not recommended. Please use $.load instead.
*
* @private
* @param selector - The new selection.
* @param context - Context of the selection.
* @param root - Sets the root node.
* @param options - Options for the instance.
*/
function Cheerio(selector, context, root, options) {
var _this = this;
if (options === void 0) { options = options_1.default; }
this.length = 0;
this.options = options;
// $(), $(null), $(undefined), $(false)
if (!selector)
return this;
if (root) {
if (typeof root === 'string')
root = parse_1.default(root, this.options, false);
this._root = new this.constructor(root, null, null, this.options);
// Add a cyclic reference, so that calling methods on `_root` never fails.
this._root._root = this._root;
}
// $($)
if (utils_1.isCheerio(selector))
return selector;
var elements = typeof selector === 'string' && utils_1.isHtml(selector)
? // $(<html>)
parse_1.default(selector, this.options, false).children
: isNode(selector)
? // $(dom)
[selector]
: Array.isArray(selector)
? // $([dom])
selector
: null;
if (elements) {
elements.forEach(function (elem, idx) {
_this[idx] = elem;
});
this.length = elements.length;
return this;
}
// We know that our selector is a string now.
var search = selector;
var searchContext = !context
? // If we don't have a context, maybe we have a root, from loading
this._root
: typeof context === 'string'
? utils_1.isHtml(context)
? // $('li', '<ul>...</ul>')
this._make(parse_1.default(context, this.options, false))
: // $('li', 'ul')
((search = context + " " + search), this._root)
: utils_1.isCheerio(context)
? // $('li', $)
context
: // $('li', node), $('li', [nodes])
this._make(context);
// If we still don't have a context, return
if (!searchContext)
return this;
/*
* #id, .class, tag
*/
// @ts-expect-error No good way to type this — we will always return `Cheerio<Element>` here.
return searchContext.find(search);
}
/**
* Make a cheerio object.
*
* @private
* @param dom - The contents of the new object.
* @param context - The context of the new object.
* @returns The new cheerio object.
*/
Cheerio.prototype._make = function (dom, context) {
var cheerio = new this.constructor(dom, context, this._root, this.options);
cheerio.prevObject = this;
return cheerio;
};
return Cheerio;
}());
exports.Cheerio = Cheerio;
/** Set a signature of the object. */
Cheerio.prototype.cheerio = '[cheerio object]';
/*
* Make cheerio an array-like object
*/
Cheerio.prototype.splice = Array.prototype.splice;
// Support for (const element of $(...)) iteration:
Cheerio.prototype[Symbol.iterator] = Array.prototype[Symbol.iterator];
// Plug in the API
Object.assign(Cheerio.prototype, Attributes, Traversing, Manipulation, Css, Forms);
function isNode(obj) {
return (!!obj.name ||
obj.type === 'root' ||
obj.type === 'text' ||
obj.type === 'comment');
}