title: set action (gesture recognizer) on text which is inside of textView
body: <p>okay so assume the below text as it is inside an textView</p>
  
  <pre><code>bla bla bla bla bla bla
  bla bla bla bla bla bla
  bla bla bla bla bla bla
  bla bla     *doAction* 
  </code></pre>
  
  <p>i have some text which i'm showing in my textView and i want to trigger an action when some desired text is tapped by user in the above example i want to trigger and action when user taps on <strong><em>doAction</em></strong>. i dont know how i'm gonna do this and even if this is possible or not i know how can i put a link on my textView but this is not the same case here. anybody can guide me how i'm gonna achieve this ??</p>
  
  <p>p.s. if question is not clear enough then let me know i'll fix it.</p>