Which of the following is a characteristic of LL(1) parsing?
Practice Questions
1 question
Q1
Which of the following is a characteristic of LL(1) parsing?
It uses a stack for parsing
It can handle left recursion
It requires backtracking
It is a top-down parsing method
LL(1) parsing is a top-down parsing method that does not require backtracking and cannot handle left recursion.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following is a characteristic of LL(1) parsing?
Solution: LL(1) parsing is a top-down parsing method that does not require backtracking and cannot handle left recursion.
Steps: 6
Step 1: Understand that LL(1) parsing is a method used to analyze the structure of programming languages.
Step 2: Recognize that 'LL' stands for 'Left-to-right scanning of the input' and 'Leftmost derivation' of the grammar.
Step 3: Note that the '(1)' indicates that the parser looks at only one symbol of input at a time to make decisions.
Step 4: Learn that LL(1) parsing is a top-down approach, meaning it starts from the highest level of the grammar and works downwards.
Step 5: Understand that LL(1) parsing does not require backtracking, which means it does not go back to re-evaluate choices once a decision is made.
Step 6: Identify that LL(1) parsing cannot handle left recursion, which is a situation where a rule refers to itself in a way that can create infinite loops.
