"use strict";
  
  const xmlParser = require("./xml");
  const htmlParser = require("./html");
  
  // https://w3c.github.io/DOM-Parsing/#dfn-fragment-parsing-algorithm
  function parseFragment(markup, contextElement) {
    const { _parsingMode } = contextElement._ownerDocument;
  
    let parseAlgorithm;
    if (_parsingMode === "html") {
      parseAlgorithm = htmlParser.parseFragment;
    } else if (_parsingMode === "xml") {
      parseAlgorithm = xmlParser.parseFragment;
    }
  
    // Note: HTML and XML fragment parsing algorithm already return a document fragments; no need to do steps 3 and 4
    return parseAlgorithm(markup, contextElement);
  }
  
  function parseIntoDocument(markup, ownerDocument) {
    const { _parsingMode } = ownerDocument;
  
    let parseAlgorithm;
    if (_parsingMode === "html") {
      parseAlgorithm = htmlParser.parseIntoDocument;
    } else if (_parsingMode === "xml") {
      parseAlgorithm = xmlParser.parseIntoDocument;
    }
  
    return parseAlgorithm(markup, ownerDocument);
  }
  
  module.exports = {
    parseFragment,
    parseIntoDocument
  };