Hi all,
I've been expanding the Oracle PL/SQL grammar (from the ANTLR downloads
section) for the past while and have had lots of success.
options {
language=CSharp2;
k=*;
backtrack=true;
memoize=true;
output=AST;
}
Right now I've got it parsing lots of programs into exactly the AST I want
(liking those tree rewrite rules), but there are definitely still many programs
that don't parse the way I expect/require.
How can I determine which path was taken through the grammar to parse the input?
I'm not sure how the grammar is producing some of this output, but if I knew
the path it was taking I'd at least have some understanding of the problem and
likely then be able to figure out a way to fix it.
So far, the only option I've seen is annotating my grammar with trace
statements that'll execute during parsing. Ick. Is there not a better way?
I'm pretty sure there must be, and I'm just not seeing it.
Suggestions?
Thanks,
J
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