[antlr-interest] first and follow and lookahead

[Edwards, Waverly]

I will look into this.


Thank you very much,


W. 

-----Original Message-----
From: Terence Parr [mailto:parrt at cs.usfca.edu] 
Sent: Monday, January 07, 2008 2:16 PM
To: Edwards, Waverly
Cc: ANTR Interest
Subject: Re: [antlr-interest] first and follow and lookahead


On Jan 7, 2008, at 8:38 AM, Edwards, Waverly wrote:

>
> Yes Sir, I have seen explanations of first and follow.
> What I would really like to know is if I can obtain through ANTLR an 
> output of first and follow sets.

Yes, ANTLR computes this for error recovery.  Look for methods FIRST/
LOOK etc... in Grammar.  Well, in 3.1 they will be similar and probably
in LL1Analyzer.java.

Ter