Lecture 7: Regular Expressions and Finite State Automata

Background Material

• Grammars
• Lecture 5

Reading

• Chapter 10 (All sections, but concentrate on Sec. 2, 5, 8) of the text.

Topics

• Unix Regular Expressions
• Regular Expressions
• Deterministic Finite State Automata and Programs to Recognize Patterns
• From Regular Expressions to Automata
• From Automata to Regular Expressions

Lecture Notes

• lec7.ppt

Programs

• Unix Scripts from Section 10.6
• Program in Figure 10.2 (sec. 2)
• Additional program to be added

Resources

• None posted

Assignments

• Assignment 5 - due by the beginning of class on Mon. Nov. 22 by 10 AM.