------ Original Message (Thursday, August 05, 2010 11:41:57
PM) From: Dervin Thunk ------
Subject: [antlr-interest] grammar problem with recursion?
> Hello. I am new to ANTLR. Below is a grammar I wrote, and I'm trying to
> test it with the following string, but it just stops before it even
> consumes the n_pp... identifier, so it stops at the "conjunction"
> rule. Any idea about what I could be doing wrong?
>
>
> conjunction
> : term
> | (term '&' conjunction)
> ;
Once 'term' gets matched in alt 1, Antlr has no where to go next. You
could reverse the order of the alts, but better would be
conjunction : term ( '&' conjunction )? ;
You have this problem in most of your compound rules. There is an Antlr
Wiki page on left factoring that you should read.
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