code: protected Betner between(String left, String right, Character sameTagMatch) {
  		return inrange(left, right, sameTagMatch);
  	}
docs: Reset the range from the given left and right with same tag match way
  'N': NEXT, 'E': LAST, 'R': NOLEFT, 'L': NORIGHT
  
  @param left
  @param right
  @param sameTagMatch
  @return