code: function increaseQuantifierByOne(quantifier) {
    if (quantifier.kind === '*') {
  
      quantifier.kind = '+';
  
    } else if (quantifier.kind === '+') {
  
      quantifier.kind = 'Range';
      quantifier.from = 2;
      delete quantifier.to;
  
    } else if (quantifier.kind === '?') {
  
      quantifier.kind = 'Range';
      quantifier.from = 1;
      quantifier.to = 2;
  
    } else if (quantifier.kind === 'Range') {
  
      quantifier.from += 1;
      if (quantifier.to) {
        quantifier.to += 1;
      }
  
    }
  }
docs: Increases a quantifier by one.
  Does not change greediness.
  * -> +
  + -> {2,}
  ? -> {1,2}
  {2} -> {3}
  {2,} -> {3,}
  {2,3} -> {3,4}