Re: problem with lexer.dat

[Agbakpem Kevin Komivi <kevin@larc.info.uqam.ca>]

Pascal AUDANT wrote:

> Greetings everyone,
>
> Btw, thanx alot for your help AND patience.
>
> I have now constructed my min grammar file which goes like :
>
> Package test;
>
> Tokens
>
> a = 'a';
>
> b = 'b';
>
> Productions
>
> s = a s [second]:a |
>
> {alternative_two} b;
>
> I generated all my classes and I implemented them in a main class …
>
> However when I try to run the program I obtain the following error 
> from the lexer.java class :
>
> "The file \"lexer.dat\" is either missing or corrupted."
>
> To make sure that the lexer.dat file is not missing I have put it in 
> C: and change the code to :
>
> new BufferedInputStream(
>
> Lexer.class.getResourceAsStream("c:/lexer.dat")));
>
> However I still obtain the same error msg (The error occurs as soon as 
> lexer tries to read the lexer.dat file in int length = s.readInt();
>
> As always your help is really appreciated
>
> Pascal
Hi Pascal, All,

As mentioned by the SableCC error message, i think that your problem is 
related to corruption of the file lexer.dat.
You do not need to move this file.
What you can do is :
first, re-build SableCC(ant clean; ant jar).
then, generate the classes for your grammar by running SableCC. Before 
that, make sure to remove old generated files if necessary.

I hope this can help you,

Cheers,

kevin