[antlr-interest] Please help with a grammar issue
frank.du at riskmetrics.com
Fri Oct 30 09:23:11 PDT 2009
I have a grammar issue and need your help. Let’s say I have tree rules: a, b, c
Rule a occurs multiple times, rule b occurs one time or none, and rule c occurs one time.
My question is: How to write the grammar, so the rule ordering is arbitrary?
Thank you so much! Have a nice day!
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