nl_tokens: Number helpers
pl_tokens: function getRange ( start , stop , fn , step ) { var arr = [ ] , i = parseInt ( start ) , down = step < 0 ; while ( ( ! down && i <= <mask> ) || ( down && i >= stop ) ) { arr . push ( i ) ; if ( fn ) fn . call ( this , i ) ; i += step || 1 ; } return arr ; }