title: Sublime Text regex not detecting multiline tags
body: <p>I have this regex here;</p>
  
  <pre><code>\[sometag\](.*)\[/sometag\]
  </code></pre>
  
  <p>Which is supposed to catch text surrounded by the <code>[sometag]</code> tag. It works for single line information contained in these tags, like on the string <code>[sometag]this is a bit of text[/sometag]</code>. But it doesn't work on text that spans multiple lines, like this;</p>
  
  <pre><code>[sometag] here is more text
  
  it spans more than one line [/sometag]
  </code></pre>
  
  <p>For some reason, Sublime text's regex finder won't recognize the tags across multiple lines. I want to know if this a problem with Sublime Text, a toggleable option, or just my personal incompetence with regexes.</p>