code: function AnsiParser(terminal) {
          this.initial_state = 0;  // 'GROUND' is default
          this.current_state = this.initial_state|0;
  
          // clone global transition table
          this.transitions = new Uint8Array(4095);
          this.transitions.set(TRANSITION_TABLE);
  
          // global non pushable buffers for multiple parse invocations
          this.osc = '';
          this.params = [0];
          this.collected = '';
  
          // back reference to terminal
          this.term = terminal || {};
          var instructions = ['inst_p', 'inst_o', 'inst_x', 'inst_c',
              'inst_e', 'inst_H', 'inst_P', 'inst_U', 'inst_E'];
          for (var i=0; i<instructions.length; ++i)
              if (!(instructions[i] in this.term))
                  this.term[instructions[i]] = function() {};
      }
docs: AnsiParser - Parser for ANSI terminal escape sequences.
  
  @param {Object=} terminal emulation object
  @constructor