Summary: Compiler Construction
Lecture 21: Error Handling in Top-Down Parsing &
Strongly Noncircular Attribute Grammars
Thomas Noll
Lehrstuhl f¨ur Informatik 2
(Software Modeling and Verification)
RWTH Aachen University
noll@cs.rwth-aachen.de
http://www-i2.informatik.rwth-aachen.de/i2/cc10/
Winter semester 2010/11
Outline
1 Repetition: LL(1) Parsing
2 Error Handling in LL Parsing
3 Repetition: (Noncircular) Attribute Grammars
4 Strongly Noncircular Attribute Grammars
Compiler Construction Winter semester 2010/11 2
Lookahead Sets
Definition (Lookahead set)
Given = A P,
la() := fi( · fo(A))

Source: Ábrahám, Erika - Fachgruppe Informatik, Rheinisch Westfälische Technische Hochschule Aachen (RWTH)

Collections: Computer Technologies and Information Sciences