user559142
Reputation: 12517
Regular Expressions In Compilers
Are regular expressions used directly in compilers to identify tokens?
Upvotes: 0
Views: 631
Answers (1)
user207421
Reputation: 310860
Yes. Many compilers use a generated scanner whose token rules are defined as REs to a DFA. Flex(1) is a prominent example.
I don't understand the second part of your question.
Upvotes: 3
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