JSFiddle - React, Tailwind, and code Playground

HTML

<div>
  <table id='matches'>
  </table>
</div>

CSS

table, th, td {
   border: 1px solid black;
}

JavaScript

var regex1 = /^"([\x00-!#-[\]-\x7f]|\\")*"$/;
var regex2 = /^"([\x00-!#-[\]-\x7f]*(\\"[\x00-!#-[\]-\x7f]*)*)"$/;

function run() {
	var str = '"foo \\"bar\\" baz"';
  
  var r1 = regex1.exec(str);
  var r2 = regex2.exec(str);

	var row = $('<tr/>')
    .append($('<td/>').text(!!r1))
    .append($('<td/>').text(r1[0]))
    .append($('<td/>').text(r1[1]));

	$('#matches').append(row);
  
  row = $('<tr/>')
    .append($('<td/>').text(!!r2))
    .append($('<td/>').text(r2[0]))
    .append($('<td/>').text(r2[1]))
    .append($('<td/>').text(r2[2]));

	$('#matches').append(row);
}
run();