What is the role of the parsing table in an LR parser?
Practice Questions
Q1
What is the role of the parsing table in an LR parser?
To store the grammar rules.
To determine the next action based on the current state and input symbol.
To keep track of the parse tree.
To manage memory allocation.
Questions & Step-by-Step Solutions
What is the role of the parsing table in an LR parser?
Step 1: Understand that an LR parser is a type of parser used in programming languages to analyze the structure of code.
Step 2: Know that the parsing table is a key component of the LR parser.
Step 3: Realize that the parsing table contains rules that help the parser decide what to do next.
Step 4: The parser looks at the current state (where it is in the parsing process) and the next input symbol (the next piece of code it needs to analyze).
Step 5: Based on the current state and the next input symbol, the parsing table tells the parser to either shift (move to the next state), reduce (apply a grammar rule), accept (successfully finish parsing), or report an error (something went wrong).
