title: regex to find excel like "formulas"
body: <p>I'm trying to build regexes that I will use on javascript to analyze strings with excel like formulas
  I want only the word that is before parenthesis,</p>
  
  <blockquote>
    <p>IF some stuff THEN <strong>FORMULA1</strong>(FORMULA2( this one is not, no words before-> (a+b))) ELSE 'this one(I dont want)'</p>
  </blockquote>
  
  <p>1:I managed to do this: (\s\S+?(?=()) which gives me FORMULA1 and one(, but I would like it to stop after the first find (ideally I'd like the regex not to include the space before, but I can live with that)</p>
  
  <p>2:because once I find it, I cut the string and re run the find FORMULA2. however my regex doesn't work as there's no white space before FORMULA2 but a ( I need to have something like \s|( but that does not work at all...</p>
  
  <p>3: I want to exclude parenthesis that are between quotes ' I'm at a loss on how to do that</p>
  
  <p>guidance very appreciated !
  <a href="https://regex101.com/r/7HSwiS/1" rel="nofollow noreferrer">here's a regex101 to help</a></p>