constants.js

"use strict";

module.exports.NAMESPACES = {
  HTML: "http://www.w3.org/1999/xhtml",
  XML: "http://www.w3.org/XML/1998/namespace",
  XMLNS: "http://www.w3.org/2000/xmlns/"
};

module.exports.NODE_TYPES = {
  ELEMENT_NODE: 1,
  ATTRIBUTE_NODE: 2, // historical
  TEXT_NODE: 3,
  CDATA_SECTION_NODE: 4,
  ENTITY_REFERENCE_NODE: 5, // historical
  ENTITY_NODE: 6, // historical
  PROCESSING_INSTRUCTION_NODE: 7,
  COMMENT_NODE: 8,
  DOCUMENT_NODE: 9,
  DOCUMENT_TYPE_NODE: 10,
  DOCUMENT_FRAGMENT_NODE: 11,
  NOTATION_NODE: 12 // historical
};

module.exports.VOID_ELEMENTS = new Set([
  "area",
  "base",
  "basefont",
  "bgsound",
  "br",
  "col",
  "embed",
  "frame",
  "hr",
  "img",
  "input",
  "keygen",
  "link",
  "menuitem",
  "meta",
  "param",
  "source",
  "track",
  "wbr"
]);