[antlr-interest] Reading trace output and debugging in general

[me 262]

Hi,

  I am having problems debugging grammar. I cannot find out which part
went wrong: Lexer, parser, or tree walker.

  Where can I find example/doc about the output of -traceLexer,
-traceparser, -traceTreeParser, and -traceTreeWalker options?

  Is there something similar to DumpASTVisitor in C++?

Thanks,

ME