nl_tokens: Read a new buffer from the current input stream update the total number of bytes read . All deflate () input goes through this function so some applications may wish to modify it to avoid allocating a large strm - > next_in buffer and copying from it . ( See also flush_pending () ) .
pl_tokens: function ( buf , start , size ) { var that = this ; var len = that . avail_in ; if ( len > size ) len = <mask> ; if ( len === 0 ) return 0 ; that . avail_in -= len ; buf . set ( that . next_in . subarray ( that . next_in_index , that . next_in_index + len ) , start ) ; that . next_in_index += len ; that . total_in += len ; return len ; }