©Brooks/Cole, 2001 Chapter 9 Regular Expressions.

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Presentation transcript:

©Brooks/Cole, 2001 Chapter 9 Regular Expressions

©Brooks/Cole, 2001 Figure 9-1 Regular Expression

©Brooks/Cole, 2001 Figure 9-2 Atoms

©Brooks/Cole, 2001 Figure 9-3 Single-Character Pattern Example

©Brooks/Cole, 2001 Figure 9-4 Dot Atom Example. Matches any character except \n (newline)

©Brooks/Cole, 2001 Figure 9-5 Class Atom Example A class of letters inside [], [a-z], [abc], [A-Z0-9]

©Brooks/Cole, 2001 Figure 9-6 Example of Classes

©Brooks/Cole, 2001 Figure 9-7 Anchors

©Brooks/Cole, 2001 Figure 9-8 Operators

©Brooks/Cole, 2001 Figure 9-9 Example of Sequence Operator

©Brooks/Cole, 2001 Figure 9-10 Evaluation of a String Using Sequence Operator

©Brooks/Cole, 2001 Figure 9-11 Alternation Operator

©Brooks/Cole, 2001 Figure 9-12 Matching Alternation Operators

©Brooks/Cole, 2001 Figure 9-13 Repetition Operator

©Brooks/Cole, 2001 Figure 9-14 Basic Repetition Forms

©Brooks/Cole, 2001 Figure 9-15 Example of Short Form Repetition Operators

©Brooks/Cole, 2001 Figure 9-16 Repeating Pattern Matching

©Brooks/Cole, 2001 Figure 9-17 Greedy Matching

©Brooks/Cole, 2001 Figure 9-18 Group Operator

©Brooks/Cole, 2001 Figure 9-19 Saving

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