Class MathNode

static/katex/katex.mjs:6604–6684

* This node represents a general purpose MathML node of any type. The * constructor requires the type of node to create (for example, `"mo"` or * `"mspace"`, corresponding to ` ` and ` ` tags).

 */

class MathNode {
  constructor(type, children) {
    this.type = void 0;
    this.attributes = void 0;
    this.children = void 0;
    this.type = type;
    this.attributes = {};
    this.children = children || [];
  }
  /**
   * Sets an attribute on a MathML node. MathML depends on attributes to convey a
   * semantic content, so this is used heavily.
   */


  setAttribute(name, value) {
    this.attributes[name] = value;
  }
  /**
   * Gets an attribute on a MathML node.
   */


  getAttribute(name) {
    return this.attributes[name];
  }
  /**
   * Converts the math node into a MathML-namespaced DOM element.
   */


  toNode() {
    const node = document.createElementNS("http://www.w3.org/1998/Math/MathML", this.type);

    for (const attr in this.attributes) {
      if (Object.prototype.hasOwnProperty.call(this.attributes, attr)) {
        node.setAttribute(attr, this.attributes[attr]);
      }
    }

    for (let i = 0; i < this.children.length; i++) {
      node.appendChild(this.children[i].toNode());
    }

    return node;
  }
  /**
   * Converts the math node into an HTML markup string.
   */


  toMarkup() {
    let markup = "<" + this.type; // Add the attributes

    for (const attr in this.attributes) {
      if (Object.prototype.hasOwnProperty.call(this.attributes, attr)) {
        markup += " " + attr + "=\"";
        markup += utils.escape(this.attributes[attr]);