title: Why is there an additional pair of curly braces on the Inno Setup Preprocessor:#emit page?
body: <p>I've been looking through Inno Setup documentation and found this:</p>
  <p>(<a href="https://jrsoftware.org/ispphelp/index.php?topic=expressions" rel="nofollow noreferrer">https://jrsoftware.org/ispphelp/index.php?topic=expressions</a>)</p>
  <pre><code>Filename: &quot;file2.ext&quot;; DestDir: {{#MyDestDir}}
  </code></pre>
  <p>Why do we need to use an additional pair of curly braces here? Mustn't we type it like this instead <code>DestDir: &quot;{#MyDestDir}&quot;</code>?</p>