[antlr-interest] Trying to resolve mutual left-recursion
Jeremy Sheldon
Jeremy.Sheldon at 90degreesoftware.com
Wed Sep 26 16:02:08 PDT 2007
Hi everyone,
I'm new to Antlr and have come up against mutual left-recursion for the
first time. Despite doing some googling, I'm still struggling to try
and remove it. Would anyone be kind enough to give me some pointers?
Here are the culprits:
query_expression
: joined_table
| non_join_query_expression;
non_join_query_expression
: non_join_query_term
| query_expression (UNION ALL | EXCEPT ALL)?
corresponding_spec? query_term;
Thanks in advance for your help,
Jeremy
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