0 xxxxxxxx
| +- token code for N
+--- ESCAPE
ESCAPE:00
END-STREAM:01
N:1
0 xxxxxxxx 0 yyyyyyyy
+- token code for E
ESCAPE:00
END-STREAM:01
N:10
E:11
0 xxxxxxxx 0 yyyyyyyy 11 0 zzzzzzzz
| +- token code for D
+------ second E
ESCAPE:00
END-STREAM:011
N:010
E:11
D:10