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Exercise: Build Lexical Analyzer Part

Exercise: Build Lexical Analyzer Part

Exercise: Build Lexical Analyzer Part. For these two tokens, using longest match, where first has the priority: binaryToken ::= ( z |1) * ternaryToken ::= (0|1|2) * . 1111z1021z1 ?. Lexical Analyzer. binaryToken ::= ( z |1) * ternaryToken ::= (0|1|2) * . 1111z1021z1 ?.

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414 views • 32 slides
Intro to Theory of Computation

Intro to Theory of Computation

Intro to Theory of Computation. L ECTURE 5 Theory of Computation Conversion from NFAs to regular expressions Proving that a language is not regular: pumping lemma. CS 464. Sofya Raskhodnikova. 01*0. 0. 0. 1. NFAs to regular expressions.

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396 views • 26 slides
CS 3240: Languages and Computation

CS 3240: Languages and Computation

CS 3240: Languages and Computation. Properties of Context-Free Languages. Properties of CFGs. Chomsky Normal Form. In Summary. Conversion to Chomsky Normal Form. q j. q 1. q k. Recall: Pumping Lemma for Regular Languages.

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396 views • 25 slides
INHERENT LIMITATIONS OF COMPUTER PROGAMS

INHERENT LIMITATIONS OF COMPUTER PROGAMS

CSci 4011. INHERENT LIMITATIONS OF COMPUTER PROGAMS. QUIZ 1. A language is a:. set of strings. { w | M accepts w }. If M is a DFA, L(M) is the set. states. Let M = (Q, ? ,? ,q 0 ,F). Q is the set of:. ? is the:. Transition function. a. b, a. q 0. q 1. NFA. DFA. DEF.

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366 views • 24 slides
INHERENT LIMITATIONS OF COMPUTER PROGAMS

INHERENT LIMITATIONS OF COMPUTER PROGAMS

CSci 4011. INHERENT LIMITATIONS OF COMPUTER PROGAMS. QUIZ 1. A language is a:. set of strings. { w | M accepts w }. If M is a DFA, L(M) is the set. states. Let M = (Q, ? ,? ,q 0 ,F). Q is the set of:. ? is the:. Transition function. a. b, ?. q a *. q end.

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339 views • 24 slides
Intro to Theory of Computation

Intro to Theory of Computation

L ECTURE 6 Theory of Computation Proving that a language is not regular Pushdown automaton (PDA) Context-free grammar (CFG). Intro to Theory of Computation. CS 464. Sofya Raskhodnikova. THE PUMPING LEMMA. Let L be a regular language with |L| = ?.

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488 views • 24 slides
CSCI 2670 Introduction to Theory of Computing

CSCI 2670 Introduction to Theory of Computing

CSCI 2670 Introduction to Theory of Computing. September 15, 2004. Agenda. Yesterday Pumping lemma review Today Prove the pumping lemma Introduce context-free grammars. Announcement. Quiz tomorrow CGF parse trees & interpretation Pumping lemma. Nonregular languages.

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Introduction to Computability Theory

Introduction to Computability Theory

Introduction to Computability Theory. Lecture4: Non Regular Languages Prof. Amos Israeli. Lecture Outline. Motivate the Pumping Lemma. Present and demonstrate the pumping concept. Present and prove the Pumping Lemma .

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COSC 3340: Introduction to Theory of Computation

COSC 3340: Introduction to Theory of Computation

COSC 3340: Introduction to Theory of Computation. University of Houston Dr. Verma Lecture 8. Pumping lemma applications. Proving L = {a n b n | n ? 0 } is not regular. Proof: Assume L is regular. Certainly L is infinite and therefore the pumping lemma applies to L .

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202 views • 7 slides
CHAPTER 2 Context-Free Languages

CHAPTER 2 Context-Free Languages

CHAPTER 2 Context-Free Languages. Contents. Context-Free Grammars definitions, examples, designing, ambiguity, Chomsky normal form Pushdown Automata definitions, examples, equivalence with context-free grammars Non-Context-Free Languages the pumping lemma for context-free languages.

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97 views • 6 slides

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