|computing LOOKAHEAD sets email@example.com (Vangelis Katsikaros) (2005-08-31)|
|Re: computing LOOKAHEAD sets firstname.lastname@example.org (J.H.Jongejan) (2005-09-02)|
|From:||Vangelis Katsikaros <email@example.com>|
|Date:||31 Aug 2005 00:36:58 -0400|
I am a computer science student and I would like to ask something. I
cant fully understand how I compute the LOOKAHEAD set for a grammar.
For my exams we use LOOKAHEAD to identify a LL(1) grammar. The procces
includes computing firstly FIRST and FOLLOW sets. Then using them we can
compute the LOOKAHEAD. But I cant fully understand this second process.
I know how to compute FIRST and FOLLOW set and I would like a
description or algorithm for computing the LOOKAHEAD from these.
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