function complete() {
    i++;
    if(i < tokens.length) {
      tok();
    }else{
      callback();
    }
  }
// completed all functions for a token
completed all functions for a token
completed all functions for a token
function complete() {
    i++;
    if(i < tokens.length) {
      tok();
    }else{
      callback();
    }
  }
function complete ( ) { i ++ ; if ( i < tokens . length ) { tok ( ) ; } else { callback ( ) ; } }
completed all functions for a token
completed all functions for a token