title: Regular Expression validation on Google Forms to block Words
body: <p>I'm trying to use Regular Expression Validation on Google Forms to block some specific words (bad words), in any sequence of uppercase/lowercase. ex[with other types of words]:
  to block -> <strong>wood, Wood, WoOd...</strong> and <strong>river, River, RiVeR...</strong> and so on. I'm using -> <code>([Ww][oO][Oo][Dd]|[Rr][Ii][Vv][Ee][Rr])</code> (i made a python script do "duplicate" each letter and create the expression, so it's easiest not to use <code>x{0,y}</code>, and at least for now, there is no dupli letters on my words list)</p>
  
  <p>It is working good. And as looks that <code>(?i:wood)|(?i:river)</code> or <code>(?i)wood|(?i)river</code> don't works there, as i know, it is the better way i can do it.</p>
  
  <p>The main problem is that one specific word of the list is also a kind of commom last name here in Brazil, lets say..."Manequim", and i still want to block this word, except when it is typed ONLY with the first letter in UpperCase.
  So i need to block "manequim" by all the ways: "manequim", "MANEQUIM", "MaNeQuIm", etc, except by the formal way of Names/Last Names: "Manequim", but i'm not getting a good way to do that</p>
  
  <p>Would somebody have a solution??</p>
  
  <p>Thanks for the help and sorry by the probably confuse english</p>