Maintain tag attribute quote characters

Cheerio changes attributes with single quotes into double quotes.

var cheerio = require('cheerio');
// uses 'single quotes'
var $ = cheerio.load('<div attr=\'value\'></div>')
$.html();
// => <div attr="value"></div>
// has "double quotes"

This is useful for me, as I use JSON in HTML attributes for widget settings.

<div data-settings='{ "option": true }'></div>

Which is encoded with HTML entities (possibly breaking JSON) as

<div data-options="{ &quot;option&quot;: true }"></div>

Setting decodeEntities: false is encoded and breaks HTML

<div data-options="{ "option": true }"></div>

Ideally, cheerio would preserve which quote character is used. I understand this is an edge case, so I’m reporting it in case others run into it. Similar to #460

[gaecom]

I fix this. steps:

1. find the file node_modules/dom-serializer/index.js
2. location the line at 68,change

else {
output += key + "='" + (opts.decodeEntities ? entities.encodeXML(value) : value) + "'";
}

To

else {
  if(/[^\\]\"/.test(value)){
        output += key + "='" + (opts.decodeEntities ? entities.encodeXML(value) : value) + "'";
      }else {
        output += key + '="' + (opts.decodeEntities ? entities.encodeXML(value) : value) + '"';

      }
}

[ederchrono]

I just had this problem and fixed it by adding decodeEntities: false to the props when loading the html:

this.$ = cheerio.load(myHtml, {decodeEntities: false})