title: Identify characters that have being escaped
body: <p>I am trying to figure out whether a string that contains single or double quotes also contained a backslash character to escape it or not</p>
  <p>I noticed that on c#, if I have the following two strings</p>
  <pre><code>string escaped = &quot;It\'s awesome. \&quot;Yes it is\&quot; &quot;;
  string nonEscaped = &quot;It's awesome. Yes it is&quot;;
  </code></pre>
  <p>then they get printed out in the exact same way (except for the double quotes):</p>
  <blockquote>
  <p>It's awesome. Yes it is</p>
  <p>It's awesome. &quot;Yes it is&quot;</p>
  </blockquote>
  <p>Which makes sense because the escaped characters don't get printed out...</p>
  <p>However, I am trying to write a function to identify that It's and &quot;Yes it is&quot; are using escaped characters for the single and double quotes...</p>
  <p>Is there a way to do that?</p>