code: public StringGrabber getStringEnclosedInFirst(String startToken, String endToken) {
  		return new StringGrabber(getCropper().getStringEnclosedInFirst(sb.toString(), startToken, endToken));
  	}
docs: returns the first one that enclosed in specific tokens found in the
  source string.
  
  
  @param startToken
  @param endToken
  @return