[antlr-interest] ANTLR 2.7.6: are existing bugs being fixed?

[F Reig]

Hi,

Are bugs in ANTLR 2.7.6 being fixed? I recently reported a bug in the
mailing list (copied below), but there has been no reply. I understand
that most resources are now being used for v3, but I'd like to know
whether someone will look into this problem in the near future.

Note that I'm not reporting a problem with my own grammar, but with
one of the examples distributed with ANTLR 2.7.6. The output differs
if C# or Java are generated.

I'd like  to use the same idiom as in the example in my grammar, so
that's why I'm interested in a fix. Alternatively, if someone can
suggest an alternative way to
implement #include directives in the lexer, that would be very useful too.

Thanks!
Fermin

---------- Forwarded message ----------
From: F Reig <fermin.reig at gmail.com>
Date: Mar 31, 2006 3:59 PM
Subject: antlr 2.7.6 C# bug confirmed. Re: 2.7.6/examples/csharp/cpp broken (C#)
To: antlr-interest at antlr.org


On 3/30/06, F Reig <fermin.reig at gmail.com> wrote:
> Hi,
>
> I need a nested lexer to handle included files, and I was looking at
> the examples in the distribution for inspiration. I've generated C#
> from  cpp.g and tested the resulting lexer with the sample input. I
> get this output:
>
> ./cppLexer.exe < cpp.in
> int a,b;
>
> int x;
> int z;
>
> which is incorrect.
>
> Can anyone else please verify this?  (I don't have access to Java in
> this computer right now, so I cannot verify whether the same example
> works OK when antlr generates Java. That would help diagnose the
> problem as a bug in cpp.g or a bug in antlr generating C#)

 I've checked this with antlr generating Java, and it works as expected:

 java -classpath .:$CLASSPATH cpp < cpp.in
 int a,b;
 int x;
 int z;
 int y;
 int c;

 This suggests that there is a bug in antlr itself (2.7.6), either in
the C# library, or (less likely) in the C# code generator.

 Fermin