6 Questions
What is the purpose of First and Follow?
To identify the first and follow sets of a non-terminal in a grammar
In the context of compiler design, what does the First set represent?
The set of terminals that start the strings derivable from a non-terminal
What is the Follow set used for in compiler design?
To identify the terminals that can appear immediately to the right of a non-terminal in a sentential form
First set is used to ______
predict the possible starting terminals of a production
Follow set is used to ______
predict the possible terminals that can follow a non-terminal in a production
First and Follow sets are used in compiler design to help with ______
constructing predictive parsing tables for LL(1) grammars
Study Notes
First and Follow Sets in Compiler Design
- The purpose of First and Follow sets is to help with parsing and syntax analysis in compiler design.
First Set
- The First set represents the set of terminals that can begin a string derived from a given non-terminal.
- It is used to determine the possible starting symbols of a production.
Follow Set
- The Follow set is used to determine the possible next terminals that can come after a given non-terminal.
- It is used to handle parsing and syntax analysis by predicting the next terminal symbol that can come after a non-terminal.
Usage of First and Follow Sets
- First set is used to predict the possible starting symbols of a production.
- Follow set is used to predict the possible next terminals that can come after a non-terminal.
- First and Follow sets are used together to help with parsing and syntax analysis by resolving parsing conflicts and ambiguities.
Test your knowledge of First and Follow sets in compiler design. Understand the purpose of First and Follow, and their significance in the context of compiler design.
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