Class notes CSE3038
LL(1) parsing is a top-down parsing technique used for context-free grammars that reads input from left to right and constructs a leftmost derivation with one symbol of lookahead. It requires the grammar to be free of ambiguity, left recursion, and properly left-factored. The parser uses First and Follow sets to construct a predictive parsing table, where each cell corresponds to a specific production based on the lookahead symbol. The "LL(1)" property ensures that for any non-terminal and input symbol, there is at most one valid parsing action, making it efficient and deterministic.
Written for
- Institution
- Vellore Institute Of Technology, Chennai
- Course
- CSE3038
Document information
- Uploaded on
- November 28, 2024
- Number of pages
- 10
- Written in
- 2024/2025
- Type
- Class notes
- Professor(s)
- Sathya
- Contains
- All classes
Subjects
-
compiler design
-
ll1 parsing
-
grammar validation in a machine