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Lexical Analysis Phase

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Questions and Answers

What is the purpose of combining all keywords into one transition diagram?

To improve program readability

To reduce compilation time

To save memory space

To make the program more efficient (correct)

Why is it challenging to combine the diagram for identifiers with that for keywords?

It is unclear which state to be in when certain characters are encountered (correct)

Identifiers and keywords have different token values

Identifiers and keywords have conflicting transition rules

Identifiers and keywords share common states

Which token class has all relops combined into it?

Keywords

Identifiers

Constants

Relops (correct)

In the given context, what is meant by 'backtracking'?

Returning to a previous state in the diagram Signup and view all the answers

Why is it more efficient to have a single transition diagram instead of multiple ones?

Avoids the need for backtracking and rescanning Signup and view all the answers

What issue arises when trying to determine whether to be in state 3 or state 24 when encountering the letters BEG?

Transition ambiguity due to shared states Signup and view all the answers

What is the main advantage of treating each keyword as a separate token?

Reduces confusion in state transitions Signup and view all the answers

Lexical Analysis Phase

Choose a study mode

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Questions and Answers

What is the purpose of combining all keywords into one transition diagram?

Why is it challenging to combine the diagram for identifiers with that for keywords?

Which token class has all relops combined into it?

In the given context, what is meant by 'backtracking'?

Why is it more efficient to have a single transition diagram instead of multiple ones?

What issue arises when trying to determine whether to be in state 3 or state 24 when encountering the letters BEG?

What is the main advantage of treating each keyword as a separate token?

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