how to use EOF in SL.cup

[chao yan]

If I add "termnial EOF; " in SL.cup, I'll receive an error as follows:
............
Parsing specification from standard input...
JavaCUP Fatal Internal Error Detected
Duplicate terminal (EOF) created
java_cup.internal_error: Duplicate terminal (EOF) created
at java_cup.terminal.<init>(terminal.java:38)
at java_cup.terminal.<init>(terminal.java:58)
...........

If I add "endoffile ::= EOF;" in SL.cup without adding "termnial EOF; ",
I'll receive an error as follows:
.....
Parsing specification from standard input...
Error at 464(7): java_cup.runtime.Symbol "EOF" has not been declared
Closing files...
------- CUP v0.10j Parser Generation Summary -------
1 error and 0 warnings
32 terminals, 34 non-terminals, and 72 productions declared,
producing 0 unique parse states.
.......

I'm really confused by the error message.
If I declare EOF terminal, CUP says "Duplicate terminal", which means
"EOF" terminal is already avaiable.
if I don't declare EOF terminal, CUP says ""EOF" has not been declared",
which means "EOF" termnial is not available.

How can I use EOF in my SL.cup? I really need to do something at end of
the sl file.

Thanks

Chao Yan

[Tom Gault]

There's a start non-terminal, and if you put code after it processes the SL
non-terminal, then it'll be executed after the whole program's been
processed. That's almost like EOF, right?

From Tom

"chao yan" <coli...@hotmail.com> wrote in message
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