docs: private boolean checkSuffix(String str,Loc loc){
  		int len=str.length();
  		while(loc.v<len && this.strSuff.indexOf(str.charAt(loc.v))>=0)
  			loc.v++;
  		while(loc.v<len && this.strPunctuation.indexOf(str.charAt(loc.v))>=0)
  			loc.v++;
  		if(loc.v<len)
  			return false;
  		else 
  			return true;
  	}