title: How to add space to both ends of a equal-sign when not in parentheses with specified file types?
body: <p>Is it possible? For example, When in <code>.py</code> and <code>.lua</code> file, not in <code>()</code> and I type <code>=</code>, st3 will automatically add a space to both ends. such as a assignment statement:</p>
  
  <pre><code>a = 1
  </code></pre>
  
  <p>But it is disabled if in a <code>()</code> state:</p>
  
  <pre><code>func(a=1) 
  func(a=1,func(b=1))
  </code></pre>