y
Panic-Mode Recovery: Illustration 1
/2
52/57
S
A
1
x
a wrong token
…
X
1
…
…
A
3
X
3
A
2
X
2
…
…
…
…
Let
a
Î
Follow
(
A
1
).
Then, continue from
X
1
=
A
n
a
skip to
key
First token from
Context
(
A
1
)