With respect, most junior programmers, whether self respecting or otherwise, would have trouble even recognizing that there is a need to cover some of those cases I mentioned, let alone successfully accommodating them.<p>Most likely you&#x27;ll get a<p><pre><code>   return &quot;&#x27;&quot; + replace(str, &quot;&#x27;&quot;, &quot;\\&#x27;&quot;) + &quot;&#x27;&quot;
</code></pre>
which only after the first bug report gets turned into a<p><pre><code>   return &quot;&#x27;&quot; + replace(replace(str,&quot;\\&quot;,&quot;\\\\&quot;),&quot;&#x27;&quot;,&quot;\\&#x27;&quot;) + &quot;&#x27;&quot;
</code></pre>
and that will have been arrived at after a lot of trial and error and incorrect numbers of backslashes.<p>And if you think that is robust, you&#x27;re likely in for a surprise when someone sends you some unicode data.